A moisture-proof and light-proof storage box for chemical impurity reference standards

Abstract

This utility model discloses a moisture-proof and light-proof chemical impurity reference standard storage box, relating to the technical field of storage box technology. The box has an internal storage chamber, and a lid is fitted on the top surface. The lid has an opening facing inwards into a groove, inside which a mesh box is detachably connected. Moisture-absorbing particles are filled between the inner cavity of the mesh box and the groove. Long mounting grooves are formed on the left and right side walls of the box. Inside each long mounting groove is a rotating shaft extending along its length. A winding roller is rotatably mounted on the circumference of the rotating shaft. A sunshade cloth is wound around the outer wall of the winding roller, and the movable end of the sunshade cloth is connected to the side of the lid. The side wall of the lid is adjacent to the hinged horizontal axis. This utility model overcomes the poor moisture-proof performance of traditional storage boxes, actively absorbing moisture to maintain a dry environment and preventing reference standards from deliquescing and deteriorating due to moisture. It also automatically forms a light-shielding barrier when the lid is opened, reducing the decomposition and oxidation of reference standards due to light exposure.

Description

Technical Field

[0001] This utility model relates to the field of storage box technology, specifically a moisture-proof and light-proof chemical impurity reference standard storage box. Background Technology

[0002] Chemical impurity reference standards are crucial standard substances used in chemical analysis, pharmaceutical testing, and other fields to calibrate instruments, validate analytical methods, and determine the impurity content in samples. Their chemical properties are often quite sensitive. During storage, most chemical impurity reference standards are easily affected by moisture and light in the environment, leading to deliquescence, decomposition, and oxidation. This results in decreased purity, altered properties, and loss of their original standard reference value, severely impacting the accuracy and reliability of subsequent experimental results. Currently, most commercially available chemical reagent storage boxes only offer basic storage functions and are significantly inadequate in terms of moisture protection and light shielding. While some storage boxes employ simple sealing structures to achieve a certain level of moisture protection, their sealing performance is poor and cannot effectively prevent the penetration of moisture from the outside air. Furthermore, these storage boxes typically lack light-shielding structures, allowing ultraviolet light, which is highly destructive to chemical impurity reference standards, to easily penetrate from both sides when the lid is open for observation. This makes it difficult to meet the requirements for long-term stable storage of chemical impurity reference standards.

[0003] In view of the above, this application is hereby submitted. Utility Model Content

[0004] The purpose of this invention is to provide a moisture-proof and light-proof storage box for chemical impurity reference standards, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a moisture-proof and light-proof chemical impurity reference standard storage box, including a box body with a storage chamber inside. The top surface of the box body is covered with a lid, and the lid has an opening facing the inside of the lid. A mesh box is detachably connected inside the groove, and moisture-absorbing particles are filled between the inner cavity of the mesh box and the groove. The left and right side walls of the box body have mounting grooves, and a rotating shaft extending along the length of the mounting groove is provided inside the mounting groove. A winding roller is rotatably sleeved on the circumference of the rotating shaft. A sunshade cloth is wound on the outer wall of the winding roller, and the movable end of the sunshade cloth is connected to the side of the lid, wherein the side wall of the lid is adjacent to the hinged horizontal axis.

[0006] Furthermore, a sliding groove is provided on the side wall of the box cover, and a lock head is slidably installed inside the sliding groove. A lock groove for inserting the lock head is provided on the side wall of the mesh box. A push spring is also installed inside the sliding groove. Under the initial elastic force of the push spring, the lock head is pushed into the lock groove.

[0007] Furthermore, an unlocking rod is slidably mounted on the mesh box. The unlocking rod is perpendicular to the lock head. The lock head has a lock chamber with a downward opening extending radially. The side wall of the lock chamber near the push spring is a downwardly inclined first slope. The top end of the unlocking rod extends into the interior of the lock chamber and abuts against the first inclined surface of the lock chamber. The bottom end of the unlocking rod extends to the outside of the mesh box.

[0008] Furthermore, the mesh box is integrally formed with mesh holes, and the pore size of the mesh holes is smaller than the particle size of the moisture-absorbing particles.

[0009] Furthermore, a hinged horizontal shaft is provided on one side of the top surface of the box body, and the box cover is rotatably connected to the hinged horizontal shaft.

[0010] Furthermore, a torsion spring is fitted onto the rotating shaft, with one end of the torsion spring connected to the inner wall of the winding roller and the other end of the torsion spring connected to the outer wall of the rotating shaft.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, the mesh box inside the lid, the moisture-absorbing particles, and the lid seal together to form a synergistic effect: the detachable design of the mesh box facilitates the regular replacement of the moisture-absorbing particles, the mesh aperture constraint ensures that the moisture-absorbing particles do not leak and contaminate the control sample, and the moisture-absorbing particles can directly act on the air in the storage room to continuously absorb moisture and maintain a dry environment.

[0012] 2. In this utility model, the winding rollers, sunshade cloth, and torsion springs on both sides of the box body are linked with the box lid. When the box lid is opened, the sunshade cloth is automatically pulled open to cover both sides of the box body, forming a light-blocking barrier to block harmful rays such as ultraviolet rays from entering the storage room. When the box lid is closed, the torsion spring drives the sunshade cloth to automatically retract. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the left-side structure of this utility model; Figure 2 This is a schematic diagram of the right-side structure of this utility model; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle; Figure 5 for Figure 3 Enlarged view of the structure at point B in the middle.

[0014] In the diagram: 1. Box body; 2. Hinged horizontal shaft; 3. Box lid; 4. Storage chamber; 5. Mesh box; 6. Moisture-absorbing granules; 7. Slide groove; 8. Lock head; 9. Push spring; 10. Lock groove; 11. Lock chamber; 12. Unlocking rod; 13. Mounting slot; 14. Rotating shaft; 15. Winding roller; 16. Shading cloth; 17. Torsion spring. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-4 This utility model provides a technical solution: a moisture-proof and light-proof chemical impurity reference standard storage box, including a box body 1, the inside of the box body 1 having a storage chamber 4, the top surface of the box body 1 being covered with a box cover 3, the inner side wall of the box cover 3 having a groove with an opening facing the inside of the box cover, a mesh box 5 being detachably connected inside the groove, the inner cavity of the mesh box 5 and the groove being filled with moisture-absorbing particles 6, the left and right side walls of the box body 1 having mounting grooves 13, the inside of the mounting grooves 13 having a rotating shaft 14 rotatably mounted, the circumferential direction of the rotating shaft 14 having a winding roller 15 being mounted, the outer wall of the winding roller 15 having a sunshade cloth 16 wound around it, the movable end of the sunshade cloth 16 being connected to the side of the box cover 3, wherein the side wall of the box cover 3 is the side adjacent to the hinged horizontal axis 2.

[0017] Specifically, the box body 1 serves as the overall supporting foundation, and its internal storage chamber 4 is used to place chemical impurity reference standards; the box lid 3 on the top surface of the box body 1 can be closed and sealed to prevent external impurities from directly entering the storage chamber 4. In terms of moisture prevention, the mesh box 5, which is detachably connected to the groove on the inner side wall of the box lid 3, has moisture-absorbing particles 6 filling the gap between its inner cavity and the groove, which can contact the air in the storage chamber 4 through the mesh of the mesh box 5 and absorb moisture from the air. In terms of light protection, the rotating shaft 14, which is installed in the long groove 13 on the left and right side walls of the box body 1, has a sunshade cloth 16 wound on its circumferential winding roller 15, and the movable end is connected to the side of the box lid 3. The side wall of the box lid 3 is the side adjacent to the hinged horizontal axis (2). With this configuration, when the lid 3 is opened around the hinged horizontal axis 2, the two sides of the lid 3 will pull the sunshade cloth 16 located on both sides of the box body 1 to unfold from the winding roller 15, covering the side wall of the box body 1, blocking external light from entering the storage chamber 4 during the opening of the lid 3; the combination of the mesh box 5 and the moisture-absorbing particles 6 changes the current situation of poor moisture-proof effect of traditional storage boxes, and can actively absorb the moisture in the storage chamber 4, maintain a dry environment, and prevent the reference material from deliquescence and deterioration due to moisture; the linkage structure of the winding roller 15 and the sunshade cloth 16 solves the problem of no effective light-blocking structure and easy ultraviolet rays entering when the traditional storage box is opened, and can automatically form a light-blocking barrier when the lid 3 is opened, reducing the decomposition and oxidation of the reference material due to light.

[0018] As a technical optimization of this utility model, a sliding groove 7 is provided on the side wall of the box cover 3, and a lock head 8 is slidably installed inside the sliding groove 7. A lock groove 10 for the lock head 8 to be inserted is provided on the side wall of the mesh box 5. A push spring 9 is also installed inside the sliding groove 7. Under the initial elastic force of the push spring 9, the lock head 8 is pushed into the lock groove 10.

[0019] Specifically, a stable locking structure is provided for the mesh box 5 to ensure continuous and reliable moisture-proof function. The lock head 8, slidably installed in the groove 7 on the side wall of the lid 3, automatically inserts into the locking groove 10 on the side wall of the mesh box 5 under the initial elastic force of the spring 9 within the groove 7. This structure allows the mesh box 5 to be firmly fixed by the lock head 8 after being embedded in the inner groove of the lid 3, preventing the mesh box 5 from accidentally falling off due to the opening and closing of the lid 3 or the movement of the storage box, ensuring that the moisture-absorbing particles 6 are always in an effective moisture-absorbing position and continuously perform their moisture-proof function.

[0020] As a technical optimization of this utility model, an unlocking rod 12 is also slidably installed on the mesh box 5. The unlocking rod 12 is perpendicular to the lock head 8. The lock head 8 has a lock chamber 11 with a downward opening extending radially. The side wall of the lock chamber 11 near the push spring 9 is a downwardly inclined first slope. The top end of the unlocking rod 12 extends into the interior of the lock chamber 11 and abuts against the first inclined surface of the lock chamber 11. The bottom end of the unlocking rod (12) extends to the outside of the mesh box (5).

[0021] Specifically, the unlocking lever 12, which is slidably mounted on the mesh box 5, is perpendicular to the lock head 8, and its top extends into the lock chamber 11 radially from the lock head 8 and abuts against the downward first inclined surface. When it is necessary to replace the moisture-absorbing particles 6, the bottom end of the unlocking lever 12 extends to the outside of the mesh box 5. Pushing the unlocking lever 12 upward will cause the top end of the unlocking lever 12 to slide upward along the first inclined surface of the lock chamber 11, generating a lateral thrust away from the lock groove 10 on the mesh box 35. This pushes the lock head 8 to overcome the elasticity of the push spring 9 and retract into the slide groove 7 until the lock head 8 disengages from the lock groove 10. At this point, the mesh box 5 can be removed from the groove of the cover 3.

[0022] As a technical optimization of this utility model, the mesh box 5 is integrally formed with mesh holes, and the pore size of the mesh holes is smaller than the particle size of the moisture-absorbing particles 6.

[0023] Specifically, the mesh openings integrally formed on the mesh box 5 have a smaller diameter than the particle size of the moisture-absorbing particles 6. During the moisture-proofing process, the moisture-absorbing particles 6 need to pass through the mesh openings to contact the air inside the storage chamber 4 to absorb moisture. The smaller mesh opening diameter prevents the moisture-absorbing particles 6 from leaking out of the mesh, thus preventing them from entering the storage chamber 4 and coming into contact with the chemical impurities reference standard, and preventing contamination of the reference standard. At the same time, the mesh openings still allow for normal air circulation, ensuring that the moisture-absorbing particles 6 can fully exert their moisture-absorbing effect.

[0024] As a technical optimization of this utility model, a hinged horizontal shaft 2 is provided on one side of the top surface of the box body 1, and the box cover 3 is rotatably connected to the hinged horizontal shaft 2.

[0025] Specifically, a hinged horizontal axis 2 is provided on one side of the top surface of the box body 1, serving as the rotation axis of the box lid 3. This allows the box lid 3 to rotate flexibly around the hinged horizontal axis 2, enabling the box lid 3 to close and open with the top surface of the box body 1.

[0026] As a technical optimization of this utility model, a torsion spring 17 is sleeved on the rotating shaft 14. One end of the torsion spring 17 is connected to the inner wall of the winding roller 15, and the other end of the torsion spring 17 is connected to the outer wall of the rotating shaft 14.

[0027] Specifically, a torsion spring 17 fitted on the rotating shaft 14 is connected at one end to the inner wall of the winding roller 15 and at the other end to the outer wall of the rotating shaft 14. When the lid 3 is opened and the sunshade cloth 16 is pulled out, the sunshade cloth 16 drives the winding roller 15 to rotate around the rotating shaft 14, causing the torsion spring 17 to deform and store elastic potential energy. When the lid 3 needs to be closed, after the pulling force on the sunshade cloth 16 disappears, the torsion spring 17 releases its elastic potential energy, driving the winding roller 15 to rotate in the opposite direction, rewinding the sunshade cloth 16 onto the winding roller 15, thus realizing the automatic recycling of the sunshade cloth 16.

[0028] This moisture-proof and light-proof chemical impurity reference standard storage box uses the box body 1 as the basic supporting structure. The storage chamber 4 inside the box body 1 serves as the core storage space for the chemical impurity reference standard. The basic seal is achieved by the lid 3 fitting together with the top surface of the box body 1. The moisture-proof function is achieved through the coordinated action of the mesh box 5 and the moisture-absorbing particles 6 on the inner side of the lid 3 and the sealing structure of the box body. The groove on the inner wall of the lid 3 provides an installation carrier for the mesh box 5. The mesh box 5 is detachably connected and embedded in the groove. The gap between its inner cavity and the groove is filled with moisture-absorbing particles 6. To prevent the mesh box 5 from accidentally falling off or the moisture-absorbing particles 6 from leaking, a lock head 8 is installed in the sliding groove 7 on the side wall of the lid 3. Under the initial elastic force of the push spring 9, the lock head 8 automatically inserts into the locking groove 10 on the side wall of the mesh box 5, realizing a stable connection between the mesh box 5 and the lid 3. The one-piece mesh on the mesh box 5 ensures that the humid air in the storage compartment 4 can smoothly enter the inner cavity of the mesh box 5 and fully contact the moisture-absorbing particles 6. The absorbent particles 6 are absorbed upon contact and effectively prevent them from leaking out of the mesh, thus avoiding contamination of the chemical impurities in the storage compartment 4. When the absorbent particles 6 are saturated with moisture, they can be replaced by the unlocking rod 12 that slides on the mesh box 5. Since the unlocking rod 12 is perpendicular to the lock head 8 and its top extends into the lock chamber 11 radially from the lock head 8 and abuts against the first inclined surface, when the bottom of the unlocking rod 12 is pushed upward, the top of the unlocking rod 12 slides along the first inclined surface of the lock chamber 11, pushing the lock head 8 to compress the push spring 9 and retract into the slide groove 7 until the lock head 8 is completely disengaged from the lock groove 10. At this time, the mesh box 5 can be removed from the groove of the cover 3, and after replacing the new absorbent particles 6, it can be reinstalled and fixed to ensure that the moisture-proof function continues to be effective. A rotating shaft 14 is rotatably installed in the mounting groove 13 on the left and right side walls of the box body 1. A sunshade cloth 16 is wound on the winding roller 15 on the outer wall of the rotating shaft 14, and a torsion spring 17 sleeved on the rotating shaft 14 is in a pre-tightened state. One end of the torsion spring 17 is connected to the inner wall of the winding roller 15, and the other end is connected to the outer wall of the rotating shaft 14. Initially, the elastic force of the torsion spring 17 drives the winding roller 15 to rotate clockwise or counterclockwise, tightly winding the sunshade cloth 16 on the winding roller 15. One end of the sunshade cloth 16 is naturally rolled up in the mounting groove 13. The hinged horizontal axis 2 on one side of the top surface of the box body 1 provides rotational support for the lid 3. As the lid 3 rotates upward around the hinged horizontal axis 2 to open with the box body 1, the two sides of the lid 3 pull the movable end of the sunshade cloth 16, causing the winding roller 15 to rotate against the preload of the torsion spring 17. This causes the sunshade cloth 16 to gradually unfold from the winding roller 15 and extend upward along the side wall of the box body 1, eventually covering both side walls of the box body 1 to form a light-blocking barrier. This blocks external light from entering the storage chamber 4 from both sides of the box body 1, reducing the decomposition, oxidation, and other deterioration reactions of chemical impurities and reference standards due to light exposure. When the lid 3 is closed, the pulling force of the bottom of the lid 3 on the sunshade cloth 16 gradually disappears. At this time, the torsion spring 17 returns to its preload state, driving the winding roller 15 to rotate in the opposite direction, tightly rewinding the sunshade cloth 16 onto the winding roller 15 until the sunshade cloth 16 is completely retracted into the mounting slot 13.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A moisture-proof and light-proof chemical impurity reference substance storage box, comprising a box body (1), the inside of the box body (1) has a storage chamber (4), and a box cover (3) is arranged on the top surface of the box body (1), characterized in that: The box cover (3) has a groove with an opening facing the inside of the box cover (3). A mesh box (5) is detachably connected inside the groove. Moisture-absorbing particles (6) are filled between the inner cavity of the mesh box (5) and the groove. An installation groove (13) is provided on the left and right side walls of the box body (1). A rotating shaft (14) extending along the length of the installation groove (13) is provided inside the installation groove (13). A winding roller (15) is rotatably sleeved on the circumferential direction of the rotating shaft (14). A sunshade cloth (16) is wound on the outer wall of the winding roller (15). The movable end of the sunshade cloth (16) is connected to the side of the box cover (3). The side wall of the box cover (3) is the side adjacent to the hinged horizontal axis (2).

2. The moisture-proof and light-proof chemical impurity reference standard storage box as described in claim 1, characterized in that: The side wall of the box cover (3) is provided with a sliding groove (7), and a lock head (8) is slidably installed inside the sliding groove (7). The side wall of the mesh box (5) is provided with a lock groove (10) for the lock head (8) to be inserted. A push spring (9) is also installed inside the sliding groove (7). The push spring (9) pushes the lock head (8) into the lock groove (10) under the initial elastic force.

3. The moisture-proof and light-proof chemical impurity reference standard storage box as described in claim 2, characterized in that: An unlocking rod (12) is also slidably mounted on the mesh box (5). The unlocking rod (12) is perpendicular to the lock head (8). The lock head (8) has a lock chamber (11) with a downward opening extending radially. The side wall of the lock chamber (11) near the push spring (9) is a first inclined surface that slopes downward. The top end of the unlocking rod (12) extends into the interior of the lock chamber (11) and abuts against the first inclined surface of the lock chamber (11). The bottom end of the unlocking rod (12) extends to the outside of the mesh box (5).

4. A moisture-proof and light-proof chemical impurity reference standard storage box as described in claim 1, characterized in that: The mesh box (5) has mesh holes integrally formed on it, and the pore size of the mesh holes is smaller than the particle size of the moisture-absorbing particles (6).

5. A moisture-proof and light-proof chemical impurity reference standard storage box as described in claim 1, characterized in that: A hinged horizontal shaft (2) is provided on one side of the top surface of the box body (1), and the box cover (3) is rotatably connected to the hinged horizontal shaft (2).

6. A moisture-proof and light-proof chemical impurity reference standard storage box as described in claim 1, characterized in that: A torsion spring (17) is fitted on the rotating shaft (14). One end of the torsion spring (17) is connected to the inner wall of the winding roller (15), and the other end of the torsion spring (17) is connected to the outer wall of the rotating shaft (14).

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