A moisture-proof structure and a moisture-proof package using the same

Abstract

The application relates to a moisture-proof structure and a moisture-proof package applying the moisture-proof structure, and belongs to the technical field of moisture-proof. The moisture-proof structure comprises a drying chamber and a cover plate. The drying chamber is made by using an injection molding process, and a welding table is arranged in the drying chamber. The cover plate is made by using an injection molding process, a plurality of air permeation holes are arranged on the surface of the cover plate, the cover plate is embedded in the welding table, and the cover plate and the welding table are fixed by ultrasonic welding. The drying chamber and the cover plate enclose a drying cavity for containing a drying agent. The application has the effect of reducing the leakage probability of the drying agent.

Description

Technical Field

[0001] This application relates to the technical field of moisture-proofing, and in particular to a moisture-proof structure and moisture-proof packaging using the moisture-proof structure. Background Technology

[0002] In the field of modern packaging and logistics, moisture prevention is a crucial step. Excessive humidity can not only lead to a decline in product performance, but may also cause problems such as product deterioration and mold growth.

[0003] In order to prevent the contents of solid medicines, health products and food from deliquescing, breaking or clumping and affecting their quality during storage, desiccants are usually placed inside the packaging.

[0004] Currently, breathable cardboard is commonly used to separate the desiccant from the contents of the packaging. However, breathable cardboard is weak and can easily deform when the packaging is squeezed or bumped, leading to desiccant leakage and contamination of the contents. Summary of the Invention

[0005] To reduce the probability of desiccant leakage, this application provides a moisture-proof structure and moisture-proof packaging using the moisture-proof structure.

[0006] Firstly, this application provides a moisture-proof structure, employing the following technical solution:

[0007] A moisture-proof structure includes a drying chamber and a cover plate;

[0008] The drying chamber is manufactured using injection molding and is equipped with a welding station.

[0009] The cover plate is made by injection molding. Multiple vent holes are opened through the surface of the cover plate. The cover plate is embedded in the welding station and is fixed to the welding station by ultrasonic welding.

[0010] The drying chamber and the cover plate enclose a drying cavity for holding the desiccant.

[0011] Using the above technical solution, both the drying chamber and the cover are manufactured using injection molding, resulting in higher strength for both than that of breathable cardboard. Furthermore, the cover is ultrasonically welded to the welding station, which offers high strength. Through these methods, the drying chamber and cover are less prone to deformation when the packaging is subjected to pressure or impact, and the weld points between the cover and the welding station are less likely to crack, thus reducing the probability of desiccant leakage.

[0012] Optionally, the cover plate is provided with a demolding groove, which is flared.

[0013] By adopting the above technical solution, the inner wall of the cover plate is flared, which makes it easy to form during the production of the cover plate and reduces the production difficulty of the cover plate; at the same time, the flared design makes the cover plate easy to demold, reducing the deformation of the cover plate during demolding.

[0014] Optionally, the cover plate has an inclined surface on the side near the welding table, and the welding table has an arc-shaped surface near the inclined surface.

[0015] Using the above technical solution, a gap is formed between the inclined surface and the arc-shaped surface, which is reserved for overflow during ultrasonic welding. After welding is completed, the overflow will fill the gap.

[0016] Optionally, the drying chamber includes a base and an adjusting cylinder, the base and the adjusting cylinder are coaxially arranged, the inner diameter of the base is smaller than the inner diameter of the adjusting cylinder, the adjusting cylinder is rotatably connected to the base, and an active gear ring is fixed on the inner wall of the adjusting cylinder.

[0017] An adjustment seat is fixedly provided on the welding platform. Multiple adjustment screws are internally threaded onto the adjustment seat. The adjustment screws are rotatably connected to the base. An active gear that meshes with the active gear ring is fixed on the adjustment screw.

[0018] Using the above technical solution, the operator rotates the adjusting cylinder, which in turn causes the adjusting screw to rotate via the active gear ring and the active gear. This causes the welding seat to slide inside the adjusting cylinder, thereby changing the position of the cover plate by changing the position of the welding seat, so that the position of the cover plate can be changed according to the amount of desiccant.

[0019] Optionally, the drying chamber includes a base, an adjustable cylinder, and an end seat. The adjustable cylinder is fixed between the base and the end seat. The adjustable cylinder includes multiple connecting rings, and an adjustment assembly and a sealing assembly are provided between two adjacent connecting rings.

[0020] The connecting ring has a cavity. The adjusting assembly includes a fixed seat and an adjusting screw. The fixed seat is fixed in the cavity of the connecting ring. The adjusting screw is slidably connected in the fixed seat. One end of the adjusting screw extends out to the outside and is fixed to the adjacent connecting ring. An adjusting sleeve is threaded on the adjusting screw. The adjusting sleeve is rotatably connected to the fixed seat. The connecting ring is provided with a power assembly that drives the adjusting screw to slide in the fixed seat.

[0021] The sealing component is used to seal the gap between two adjacent connecting rings.

[0022] Using the above technical solution, the operator rotates the adjusting screw sleeve via a power component, causing the adjusting screw to slide within the fixed seat. This adjusts the distance between two adjacent connecting rings, and by adjusting the height of the adjustable cylinder, the height of the drying chamber is adjustable, thus allowing for different volumes of the drying chamber. Through this method, the volume of the drying chamber is adjustable, thereby making the installation space required for the moisture-proof structure adjustable and expanding its applicability. Simultaneously, the adjustable volume within the drying chamber allows for adjustable desiccant dosage.

[0023] Optionally, the connecting ring has a through groove that connects the cavity to the outside. The power assembly includes a drive ring, a drive gear ring, and a drive gear. The drive ring is rotatably connected in the through groove of the connecting ring, the drive gear ring is fixed on the inner wall of the drive ring, the drive gear meshes with the drive gear ring, and the drive gear is fixed on the adjusting screw sleeve.

[0024] Using the above technical solution, the operator rotates the drive ring, which in turn drives the gear ring and the drive gear to rotate the adjusting screw sleeve, making it easier to rotate the adjusting screw sleeve.

[0025] Optionally, the fixed base has a through hole for the adjusting screw to pass through, and a limiting block is fixed in the through hole. The outer wall of the adjusting screw has a limiting groove that is slidably adapted to the limiting block.

[0026] Using the above technical solution, when the adjusting sleeve rotates, the adjusting screw slides in the fixed seat. At this time, the limiting block slides in the limiting groove, so that the limiting block prevents the adjusting screw from rotating with the adjusting sleeve, thus achieving the effect of guiding the adjusting screw.

[0027] Optionally, the outer wall of the drive ring is provided with multiple actuation grooves.

[0028] Using the above technical solution, the operator can rotate the drive ring by turning the groove, and the outer diameter of the drive ring can be equal to the outer diameter of the connecting ring, thereby reducing the space occupied by the drying chamber.

[0029] Optionally, the enclosure includes a protective shield fixed between two adjacent connecting rings.

[0030] Using the above technical solution, the protective cover is retractable. When the distance between two adjacent connecting rings increases, the protective cover is stretched; when the distance between two adjacent connecting rings decreases, the protective cover is compressed. Through this method, the distance between two adjacent connecting rings is always kept closed.

[0031] Secondly, this application also provides a moisture-proof packaging, which adopts the following technical solution:

[0032] A moisture-proof packaging includes a moisture-proof structure, and also includes a packaging bottle body and a packaging bottle cap;

[0033] The moisture-proof structure is installed inside the packaging bottle;

[0034] or / and

[0035] The moisture-proof structure is installed inside the bottle cap.

[0036] By adopting the above technical solution, when the packaging bottle or packaging cap is squeezed or impacted, the moisture-proof structure is not easily deformed, thus making it difficult for the desiccant inside the moisture-proof structure to leak, thereby reducing the probability of the contents being contaminated.

[0037] In summary, this application includes at least one of the following beneficial technical effects:

[0038] 1. The drying chamber and cover are of high strength. The cover is ultrasonically welded to the welding station, and the moisture-proof structure is also ultrasonically welded to the bottle cap or bottle body, resulting in high welding strength. When the packaging is squeezed or impacted, the drying chamber and cover are not easily deformed, and the weld joints are not easily cracked, reducing the probability of desiccant leakage.

[0039] 2. The adjustable position of the welding station allows for adjustment of the cover plate's installation position, enabling the cover plate's position to change according to the amount of desiccant; the adjustable spacing between two adjacent connecting rings allows for adjustment of the drying chamber's height, enabling the drying chamber's capacity to change according to the amount of desiccant. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of a moisture-proof structure according to Embodiment 1 of this application;

[0041] Figure 2 This is a cross-sectional view of Embodiment 1 of this application, showing the specific structure of the cover plate and the location of the storage cavity;

[0042] Figure 3 yes Figure 2 A magnified view of part A in the middle;

[0043] Figure 4 This is a cross-sectional view of Embodiment 2 of this application, illustrating the differences from Embodiment 1;

[0044] Figure 5 This is a cross-sectional view of Embodiment 3 of this application, illustrating the differences from Embodiment 1;

[0045] Figure 6 yes Figure 5 A magnified view of part B in the diagram.

[0046] In the diagram, 1. Drying chamber; 11. Drying cavity; 12. Mounting slot; 2. Welding table; 21. Arc-shaped surface; 22. Adjusting seat; 221. Adjusting screw; 2211. Drive gear; 23. Reserved slot; 3. Cover plate; 31. Vent hole; 32. Demolding slot; 33. Inclined surface; 4. Base; 5. Adjusting cylinder; 51. Drive gear ring; 6. Base; 7. Adjustable cylinder; 71. Connecting ring; 711. Hole Cavity; 712, Enclosed assembly; 7121, Protective cover; 713, Through groove; 714, Storage groove; 8, End seat; 9, Adjusting assembly; 91, Fixed seat; 911, Through hole; 912, Limiting block; 92, Adjusting screw; 921, Adjusting sleeve; 922, Limiting groove; 10, Power assembly; 101, Drive ring; 1011, Actuating groove; 102, Drive gear ring; 103, Drive gear. Detailed Implementation

[0047] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0048] This application discloses a moisture-proof structure.

[0049] Example 1

[0050] refer to Figure 1 and Figure 2 A moisture-proof structure includes a drying chamber 1, which is a hollow cylindrical structure. One of the open ends of the drying chamber 1 is covered with a cover plate 3. Both the drying chamber 1 and the cover plate 3 are made by injection molding. The material of the drying chamber 1 and the cover plate 3 is a thermoplastic resin material, such as PP, PE or PET / PS / PC blend, etc. Multiple vent holes 31 are opened through the surface of the cover plate 3. The drying chamber 1 and the cover plate 3 enclose a drying cavity 11, which is used to hold a desiccant. The desiccant can be silica gel, molecular sieve or a mixture of the two, or other granular deoxidizers or activated carbon, etc.

[0051] In practical applications, the drying chamber 1 is equipped with a cover plate 3, one end of which faces the inside of the packaging, and the other end of the drying chamber 1 is fixed to the packaging. The drying chamber 1 is connected to the inside of the packaging through the vent 31. The moisture inside the packaging enters the drying chamber 11 through the vent 31 and is absorbed by the desiccant. When the packaging is squeezed or collided, the strength of the drying chamber 1 and the cover plate 3 is high and they are not easily deformed, thereby reducing the probability of desiccant leakage.

[0052] refer to Figure 2 and Figure 3 The cover plate 3 has a demolding groove 32 inside, the demolding groove 32 is flared, and the cover plate 3 has an inclined surface 33 circumferentially opened at the port of the demolding groove 32.

[0053] refer to Figure 2 and Figure 3The drying chamber 1 has an installation groove 12 in a ring at its port. The drying chamber 1 has a welding table 2 fixed inside it. The welding table 2 has an L-shaped cross section and is integrally formed with the drying chamber 1. The cover plate 3 is embedded in the welding sleeve. The welding table 2 has an arc-shaped surface 21 in a ring near the inclined surface 33. The welding table 2 has a reserved groove 23 in a ring at its port.

[0054] refer to Figure 3 The cover plate 3 and the welding table 2 are fixed by ultrasonic welding, and the width of the welding surface between the cover plate 3 and the welding table 2 is 0.2-0.5mm.

[0055] The cover plate 3 and the welding table 2 are ultrasonically welded, and the welding surface is set between 0.2-0.5mm, which increases the connection strength between the cover plate 3 and the welding table 2; a gap is formed between the inclined surface 33 and the arc-shaped surface 21, and the gap and the reserved groove 23 provide overflow positions for welding.

[0056] The flared demolding groove 32 reduces the production difficulty of the cover plate 3 and also reduces the degree of deformation of the cover plate 3 during demolding.

[0057] The implementation principle of the moisture-proof structure in Embodiment 1 of this application is as follows: the moisture-proof structure is fixed inside the packaging. Specifically, the end of the drying chamber 1 without the cover plate 3 is set on the inner surface of the packaging, or is integrally set on the inner surface of the bottom wall of the packaging bottle / can / shell. The type of packaging is not limited. When the packaging is squeezed or collided, the drying chamber 1 and the cover plate 3 have high strength and are not easily deformed. At the same time, the weld point between the cover plate 3 and the welding table 2 is ultrasonically welded and is not easy to crack, thereby reducing the probability of desiccant leakage.

[0058] Example 2

[0059] Example 2 differs from Example 1 in that: (Refer to...) Figure 4 The drying chamber 1 includes a base 4 and an adjusting cylinder 5. The inner diameter of the base 4 is smaller than the inner diameter of the adjusting cylinder 5, and the outer diameter of the base 4 is equal to the outer diameter of the adjusting cylinder 5. The base 4 and the adjusting cylinder 5 are coaxially arranged, and the adjusting cylinder 5 is rotatably connected to the base 4. The inner wall of the adjusting cylinder 5 is fixedly provided with an active gear ring 51.

[0060] refer to Figure 4 An adjusting seat 22 is fitted on the welding table 2 and the two are fixed together. Multiple adjusting screws 221 are internally threaded on the adjusting seat 22. In this embodiment, there are two adjusting screws 221. The two adjusting screws 221 are arranged opposite to each other on both sides of the adjusting seat 22. One end of the adjusting screw 221 is rotatably connected to the base 4. An active gear 2211 meshing with the active gear ring 51 is fitted on the adjusting screw 221. The active gear 2211 is fixed to the adjusting screw 221 and is arranged between the base 4 and the adjusting seat 22.

[0061] The difference between Embodiment 2 and Embodiment 1 is that the operating principle is as follows: the operator rotates the adjusting cylinder 5 to drive the active gear ring 51 to rotate, the active gear ring 51 to drive the active gear 2211 to rotate, the active gear 2211 to drive the adjusting screw 221 to rotate, and thus the adjusting screw 221 drives the adjusting seat 22 to slide inside the adjusting cylinder 5. In turn, the adjusting seat 22 drives the welding table 2 to slide inside the adjusting cylinder 5, thereby achieving the effect of adjusting the position of the cover plate 3 according to the amount of desiccant.

[0062] Example 3

[0063] The difference between Example 3 and Example 1 is that: (Refer to...) Figure 5 and Figure 6 The drying chamber 1 includes a base 6, an adjustable cylinder 7, and an end seat 8. The adjustable cylinder 7 is fixed between the base 6 and the end seat 8. The adjustable cylinder 7 includes multiple connecting rings 71. A cavity 711 is formed in the annular shape inside the connecting ring 71. A through groove 713 is formed in the annular shape on the outer wall of the connecting ring 71 to connect the cavity 711 with the outside. A storage groove 714 is formed in the annular shape on the opposite side of two adjacent connecting rings 71.

[0064] refer to Figure 6 Two adjusting components 9 are provided between two adjacent connecting rings 71. The two adjusting components 9 are respectively located on both sides of the connecting ring 71. The adjusting component 9 includes a fixed seat 91 and an adjusting screw 92. The fixed seat 91 is fixed in the cavity 711 of the connecting ring 71. The adjusting screw 92 is slidably connected in the fixed seat 91. A through hole 911 is provided in the fixed seat 91 for the adjusting screw 92 to pass through. A limiting block 912 is fixed in the fixed seat 91 within the through hole 911. A limiting groove 922 is provided on the outer wall of the adjusting screw 92 to slide and adapt to the limiting block 912. One end of the adjusting screw 92 extends outward and is fixed to the adjacent connecting ring 71. An adjusting screw sleeve 921 is sleeved on the adjusting screw 92. The adjusting screw sleeve 921 is threadedly connected to the adjusting screw 92. The adjusting screw sleeve 921 is rotatably connected to the fixed seat 91.

[0065] refer to Figure 6A power assembly 10 is provided between two adjacent connecting rings 71. The power assembly 10 includes a drive ring 101, a drive gear ring 102, and two drive gears 103. The drive ring 101 is rotatably connected in the through groove 713 of the connecting ring 71. The inner diameter and outer diameter of the drive ring 101 are equal to those of the connecting ring 71, and the drive ring 101 and the connecting ring 71 are coaxially arranged. The outer wall of the drive ring 101 is provided with a turning groove 1011, and multiple turning grooves 1011 are provided around the outer wall of the drive ring 101. The drive gear ring 102 is fixed on the inner wall of the drive ring 101. Both drive gears 103 mesh with the drive gear ring 102. The two drive gears 103 are respectively sleeved on two adjusting screw sleeves 921, and the drive gears 103 are fixed to the adjusting screw sleeves 921.

[0066] refer to Figure 6 The enclosure component 712 includes a protective cover 7121. Two protective covers 7121 are provided. Both protective covers 7121 are located between two adjacent connecting rings 71. The edge of the protective cover 7121 is fixed to the inner wall of the connecting ring 71 at the receiving groove 714.

[0067] The difference between Embodiment 3 and Embodiment 1 is that the operator rotates the drive ring 101 through the actuating groove 1011. The rotation of the drive ring 101 drives the drive gear ring 102 to rotate, which in turn drives the drive gear 103 to rotate. The drive gear 103 then drives the adjusting screw 92 to slide within the fixed seat 91, thereby adjusting the distance between two adjacent connecting rings 71. This achieves the effect of adjusting the volume of the drying chamber 1 according to the amount of desiccant or the size of the installation space.

[0068] This application also discloses a moisture-proof packaging.

[0069] A moisture-proof packaging includes a moisture-proof structure, a packaging bottle body, and a packaging bottle cap. In the moisture-proof structure, the end of the drying chamber 1 without the cover plate 3 is set inside the packaging bottle body or the packaging bottle cap by ultrasonic welding. The cover plate 3 faces the inside of the packaging bottle body. There are no restrictions on the specific structure of the packaging bottle body and the packaging bottle cap. The packaging bottle body and the packaging bottle cap can be any of the existing types.

[0070] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A moisture barrier structure, characterized by, It includes a drying chamber (1) and a cover plate (3); The drying chamber (1) is made by injection molding, and a welding station (2) is provided inside the drying chamber (1); The cover plate (3) is made by injection molding. Multiple ventilation holes (31) are opened through the surface of the cover plate (3). The cover plate (3) is embedded in the welding table (2). The cover plate (3) and the welding table (2) are fixed by ultrasonic welding. The drying chamber (1) and the cover plate (3) enclose a drying cavity (11) for holding the desiccant; The drying chamber (1) includes a base (6), an adjustable cylinder (7) and an end seat (8). The adjustable cylinder (7) is fixed between the base (6) and the end seat (8). The adjustable cylinder (7) includes multiple connecting rings (71). An adjustment component (9) and a sealing component (712) are provided between two adjacent connecting rings (71). The connecting ring (71) has a cavity (711) inside. The adjusting assembly (9) includes a fixed seat (91) and an adjusting screw (92). The fixed seat (91) is fixed in the cavity (711) of the connecting ring (71). The adjusting screw (92) is slidably connected in the fixed seat (91). One end of the adjusting screw (92) extends out to the outside and is fixed to the adjacent connecting ring (71). An adjusting sleeve (921) is threaded on the adjusting screw (92). The adjusting sleeve (921) is rotatably connected to the fixed seat (91). The connecting ring (71) is provided with a power assembly (10) that drives the adjusting screw (92) to slide in the fixed seat (91). The closing component (712) is used to close the gap between two adjacent connecting rings (71); The connecting ring (71) has a through groove (713) that connects the cavity (711) to the outside. The power assembly (10) includes a drive ring (101), a drive gear ring (102), and a drive gear (103). The drive ring (101) is rotatably connected in the through groove (713) of the connecting ring (71). The drive gear ring (102) is fixed on the inner wall of the drive ring (101). The drive gear (103) meshes with the drive gear ring (102) and is fixed on the adjusting screw sleeve (921). The fixed base (91) has a through hole (911) for the adjusting screw (92) to pass through. The fixed base (91) has a limiting block (912) fixed in the through hole (911). The outer wall of the adjusting screw (92) has a limiting groove (922) that is slidably adapted to the limiting block (912). The enclosure assembly (712) includes a protective cover (7121) which is fixed between two adjacent connecting rings (71).

2. The moisture barrier structure of claim 1, wherein: The cover plate (3) is provided with a demolding groove (32), which is flared.

3. The moisture barrier structure of claim 1, wherein: The cover plate (3) has an inclined surface (33) on the side near the welding table (2), and the welding table (2) has an arc-shaped surface (21) near the inclined surface (33).

4. A moisture-proof structure according to claim 1, characterized in that: The outer wall of the drive ring (101) is provided with a plurality of actuation grooves (1011).

5. A moisture-proof packaging, comprising the moisture-proof structure according to any one of claims 1-4, characterized in that: It also includes the bottle body and the bottle cap; The moisture-proof structure is installed inside the packaging bottle; or / and The moisture-proof structure is installed inside the bottle cap.

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