Sealed type anti-oxidation preserved fresh flower color retention cabin

Abstract

The utility model provides a sealed anti-oxidation preserved flower color retention cabin, which belongs to the technical field of preserved flower color retention cabins, and comprises a multi-layer gradient pressure reduction sealed cabin body, which sequentially comprises a shell, a buffer layer and an oxygen isolation liner from outside to inside; the shell is of a cylindrical structure with the top open and the bottom closed, annular reinforcing ribs are arranged on the outer wall, and a step-shaped clamping groove is formed in the inner edge of the bottom and used for nesting the upper edge of the elastic silica gel buffer layer. The buffer layer is nested in the shell, the lower end of the buffer layer is fixed through a clamping groove, hemispherical damping protrusions are evenly distributed on the inner wall, and the upper end of the buffer layer is flanged outwards to form a sealing lip. The oxygen isolation liner is of a thin-wall cylindrical structure, and the edge of a top opening is folded outwards to form a flange edge; the sealing cover is detachable, the buckling part and the self-expansion silica gel sealing ring are arranged on the edge of the sealing cover, the sealing ring presses the sealing lip to form double sealing when the sealing cover is closed, and the defects that a traditional preserved fresh flower color retaining cabin is poor in sealing and oxygen isolation performance and single in color retaining mode are overcome.

Description

Technical Field

[0001] This utility model belongs to the technical field of preserved flower color preservation chambers, specifically, it relates to a sealed antioxidant preserved flower color preservation chamber. Background Technology

[0002] Preserved flowers, also known as everlasting flowers or eco-friendly flowers, are dried flowers made from fresh-cut flowers such as roses, carnations, orchids, and hydrangeas through a series of complex processes including dehydration, decolorization, drying, and dyeing. Their color, shape, and texture are almost indistinguishable from fresh flowers, and they can last for several years, making them very popular with consumers and widely used in home decoration and gift-giving. Antioxidant preserved flower color-preserving chambers, as a type of equipment specifically designed to preserve preserved flowers, extend their lifespan, and maintain their vibrant colors, occupy an important position in the preserved flower industry chain. They create suitable environmental conditions to prevent preserved flowers from fading and deteriorating due to oxidation, moisture, and light, thus maintaining their aesthetic appeal and commercial value.

[0003] Traditional preserved flower color-preserving chambers have revealed numerous drawbacks in practical use. Regarding sealing performance, most traditional chambers rely on simple rubber gaskets or ordinary sealant. This sealing method struggles to cope with environments experiencing significant temperature and humidity fluctuations, easily leading to incomplete seals and allowing outside air to enter. Once outside air enters, the oxygen reacts with the preserved flowers, causing oxidation and accelerating fading and aging. For example, during periods of high summer temperatures, the thermal expansion coefficient of ordinary sealing materials is unstable, increasing the sealing gaps and significantly reducing the chamber's sealing effectiveness. Many preserved flowers exhibit noticeable discoloration within a short period.

[0004] In terms of oxygen barrier effectiveness, traditional color-preserving chambers lack effective oxygen-blocking mechanisms. Some chambers rely solely on the material of the chamber itself to block oxygen, but common plastics or glass have limited oxygen-blocking capabilities and cannot completely prevent oxygen penetration. This makes it difficult to maintain a low oxygen level inside the chamber, leaving the preserved flowers constantly threatened by oxidation. Moreover, traditional color-preserving chambers are relatively simple in their color-preservation methods, mostly just providing a relatively enclosed space without an active color-preservation mechanism. For long-term preservation, this passive method alone is insufficient to guarantee that preserved flowers will maintain their vibrant colors. Utility Model Content

[0005] In view of this, the present invention provides a sealed antioxidant preserved flower color preservation chamber, which solves the shortcomings of traditional preserved flower color preservation chambers with poor sealing and oxygen isolation performance and single color preservation method, and provides a long-lasting, effective and stable preservation environment for preserved flowers.

[0006] This utility model is implemented as follows:

[0007] This utility model provides a sealed antioxidant preserved flower color retention chamber, which includes: a multi-layer gradient decompression sealed chamber, consisting of an outer shell, a buffer layer and an oxygen-barrier inner liner from the outside to the inside;

[0008] The outer shell is a cylindrical structure with an open top and a closed bottom. The outer wall is provided with annular reinforcing ribs, and the bottom inner edge is provided with a stepped slot for nesting the upper edge of the elastic silicone buffer layer.

[0009] The buffer layer is nested inside the outer shell, and its lower end is fixed by a slot. The inner wall is evenly distributed with hemispherical shock-absorbing protrusions, and the upper end is turned outward to form a sealing lip.

[0010] The oxygen-barrier inner liner has a thin-walled cylindrical structure, with the top opening edge folded outward to form a flange edge;

[0011] The removable sealing cap has a snap-fit ​​part and a self-expanding silicone sealing ring on its edge. When closed, the sealing ring presses against the sealing lip to form a double seal.

[0012] Based on the above technical solution, the sealed antioxidant preserved flower color-preserving chamber of this utility model can be further improved as follows:

[0013] The outer shell and the buffer layer are fixed together by a hot melt adhesive layer, which covers more than 90% of the inner surface area of ​​the outer shell, and the flange edge is embedded between the buffer layer and the hot melt adhesive layer.

[0014] The hot-melt adhesive layer is an ethylene-vinyl acetate copolymer film.

[0015] Furthermore, the bottom of the oxygen-barrier inner liner is 10-15mm away from the bottom of the outer shell, forming a color-preserving liquid storage cavity. The interior of the chamber is filled with color-preserving liquid, which is a mixed solution of glycerin and acrylic resin, and the liquid level is 1 / 3 to 1 / 2 of the chamber volume.

[0016] The color-preserving solution contains 0.1-0.5 wt% of benzotriazole UV absorbers.

[0017] Furthermore, an annular groove is provided on the inner side of the fastening part, and the sealing ring is pre-embedded in the annular groove. When the sealing cover is closed, the sealing ring is compressed and expands to fill the gap between the groove and the outer shell.

[0018] The snap-fit ​​part and the sealing cap are integrally injection molded PP plastic rings with an inverted "L" shaped cross section.

[0019] Furthermore, the bottom of the oxygen-barrier inner liner is provided with an inert gas slow-release chamber, which is filled with a nitrogen generator. The chamber of the slow-release chamber is separated from the oxygen-barrier inner liner by a microporous ceramic partition with a pore size of 5-10 μm.

[0020] The nitrogen generator is a composite particle of sodium nitrite and ammonium chloride, and the particles are coated with a polyvinyl alcohol slow-release film.

[0021] Furthermore, the bottom of the outer shell is provided with a one-way breathable moisture-proof valve, which is composed of an expanded polytetrafluoroethylene film and an activated carbon filter layer.

[0022] Furthermore, the inner side of the sealing cover is provided with a petal support mesh, which is woven from 304 stainless steel wire into a wavy grid, and the surface of the support mesh is coated with a hydrophobic fluorine coating.

[0023] The specific material of the hydrophobic fluorine coating is: fluorosilicone modified acrylic resin (solid content 45%, fluorine content ≥22wt%).

[0024] Furthermore, the petal support net is connected to the sealing cover by a buckle, and after locking, the surface of the petal support net is inclined at 15-30° to the horizontal plane.

[0025] The petal support net is connected to the sealing cover by a rotatable buckle with a rotation angle of 0-90°.

[0026] Furthermore, the buffer layer is made of elastic silicone material, the oxygen-barrier inner liner is specifically a nano-ceramic oxygen-barrier inner liner, and a vacuum aluminum foil reflective layer is provided between the buffer layer and the oxygen-barrier inner liner.

[0027] The nano-ceramic oxygen-barrier inner liner is made of sintered zirconia ceramic with a thickness of 0.5-1.2 mm. The inner surface of the liner is polished to Ra≤0.1μm, and the oxygen permeability is <0.01cm. 3 / (m 2 (day / atm). The thickness of the vacuum aluminum foil reflective layer is 0.05-0.1mm, and the light reflectivity is ≥95%.

[0028] Furthermore, the sealing ring has a trapezoidal cross-section, and a peroxide crosslinking agent is pre-embedded inside the sealing ring.

[0029] Compared with existing technologies, the beneficial effects of the sealed, antioxidant, and color-preserving chamber for preserved flowers provided by this utility model are:

[0030] The multi-layered gradient decompression sealed chamber, combined with a removable sealing cover, features a double-seal design that significantly improves the sealing performance of the color-preserving chamber. The rigid outer shell, elastic silicone buffer layer, and nano-ceramic oxygen-barrier inner liner work together to effectively prevent outside air from entering. The low-oxygen barrier properties of the nano-ceramic inner liner, combined with the double seal formed by the self-expanding silicone sealing ring, maintain the oxygen content inside the chamber at an extremely low level. Experimental tests show that under normal conditions, the oxygen concentration inside the color-preserving chamber can be reduced to below 0.5%, significantly slowing down the oxidation rate compared to traditional color-preserving chambers. This means that the fading period of preserved flowers is greatly extended.

[0031] The hemispherical shock-absorbing protrusions of the elastic silicone cushioning layer and the adjustable petal support net provide comprehensive physical protection for preserved flowers. During transportation or daily movement, the shock-absorbing protrusions effectively absorb vibrations and impacts, reducing damage to the flowers. The petal support net not only supports the flowers and prevents them from deforming, but its angle can also be adjusted to accommodate preserved flowers of different shapes and sizes. For some uniquely shaped preserved flowers, adjusting the angle of the support net allows for better display of the flower's posture, while preventing the flowers from breaking or falling due to gravity or collisions, thus improving the stability and integrity of the preserved flowers during preservation and display.

[0032] The inert gas slow-release chamber and nitrogen generator enable the color-preserving chamber to actively preserve its color. When the oxygen content inside the chamber increases, the nitrogen generator produces nitrogen gas, automatically regulating the gas composition and maintaining a low-oxygen environment. A one-way breathable moisture-proof valve removes excess moisture, keeping the air dry and preventing mold and fading caused by dampness. The vacuum aluminum foil reflective layer effectively reflects heat radiation and light, stabilizing the temperature inside the chamber and reducing light damage to the flowers. These functions work together to create a stable and suitable preservation environment for the preserved flowers, delaying the aging and fading process in multiple ways, keeping them vibrant and fresh. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 Example diagram of a sealed, antioxidant, color-preserving chamber for preserved flowers;

[0035] Figure 2 A top view of a sealed, antioxidant, color-preserving preserved flower chamber;

[0036] Figure 3 A side perspective view of a sealed, antioxidant, color-preserving preserved flower chamber;

[0037] The attached diagram lists the components represented by each number as follows:

[0038] 10. Outer shell; 12. Sealing cap; 13. Annular reinforcing rib; 14. One-way breathable moisture-proof valve; 20. Buffer layer; 30. Oxygen-proof inner liner. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0040] like Figures 1-3 The image shown is a first embodiment of a sealed antioxidant preserved flower color-preserving chamber provided by this utility model. In this embodiment, it includes: a multi-layer gradient decompression sealed chamber, which consists of an outer shell 10, a buffer layer 20 and an oxygen-barrier inner liner 30 from the outside to the inside.

[0041] The outer shell 10 is a cylindrical structure with an open top and a closed bottom. The outer wall is provided with an annular reinforcing rib 13, and the bottom inner edge is provided with a stepped slot for nesting the upper edge of the elastic silicone buffer layer 20.

[0042] The buffer layer 20 is nested inside the outer shell 10, and its lower end is fixed by a slot. Hemispherical shock-absorbing protrusions are evenly distributed on the inner wall, and the upper end is turned outward to form a sealing lip.

[0043] The oxygen-barrier inner liner 30 has a thin-walled cylindrical structure, with the top opening edge folded outward to form a flange edge;

[0044] The removable sealing cover 12 has a snap-fit ​​part and a self-expanding silicone sealing ring on its edge. When closed, the sealing ring presses against the sealing lip to form a double seal.

[0045] In the above technical solution, the outer shell 10 and the buffer layer 20 are fixed by a hot melt adhesive layer, which covers more than 90% of the inner surface area of ​​the outer shell, and the flange edge is embedded between the buffer layer 20 and the hot melt adhesive layer.

[0046] Furthermore, in the above technical solution, the bottom of the oxygen-barrier inner liner 30 is 10-15mm away from the bottom of the outer shell 10, forming a color-preserving liquid storage cavity. The interior of the chamber is filled with color-preserving liquid, which is a mixed solution of glycerin and acrylic resin. The liquid level is 1 / 3 to 1 / 2 of the chamber volume.

[0047] Furthermore, in the above technical solution, an annular groove is provided on the inner side of the fastening part, and the sealing ring is pre-embedded in the annular groove. When the sealing cover 12 is closed, the sealing ring is compressed and expands to fill the gap between the groove and the outer shell 10.

[0048] Furthermore, in the above technical solution, the bottom of the oxygen-barrier inner liner 30 is provided with an inert gas slow-release chamber, which is filled with a nitrogen generator. The chamber of the slow-release chamber is separated from the oxygen-barrier inner liner 30 by a microporous ceramic partition with a pore size of 5-10μm.

[0049] Furthermore, in the above technical solution, the bottom of the outer shell 10 is provided with a one-way breathable moisture-proof valve, which is composed of an expanded polytetrafluoroethylene film and an activated carbon filter layer.

[0050] The one-way breathable and moisture-proof valve is similar to a one-way heart valve. It has an M12×1 external thread at the bottom for screwing into the mounting hole at the bottom of the housing. The valve body is cylindrical.

[0051] Furthermore, in the above technical solution, the inner side of the sealing cover 12 is provided with a petal support mesh, which is woven from 304 stainless steel wire into a wavy grid, and the surface of the support mesh is coated with a hydrophobic fluorine coating.

[0052] Furthermore, in the above technical solution, the petal support net is connected to the sealing cover 12 by a buckle, and after locking, the surface of the petal support net is inclined at 15-30° to the horizontal plane.

[0053] The diameter of the petal support mesh is slightly smaller than that of the inner liner to ensure no interference; the lowest point of the mesh is 25mm from the bottom of the inner liner to avoid contact with the color-preserving liquid; the highest point of the mesh is 15mm from the lower surface of the sealing cap to provide space for the petals to spread out.

[0054] Furthermore, in the above technical solution, the buffer layer 20 is made of elastic silicone material, the oxygen-barrier inner liner 30 is specifically a nano-ceramic oxygen-barrier inner liner, and a vacuum aluminum foil reflective layer is provided between the buffer layer 20 and the oxygen-barrier inner liner 30.

[0055] Furthermore, in the above technical solution, the cross-section of the sealing ring is trapezoidal, and a peroxide crosslinking agent is pre-embedded inside the sealing ring.

[0056] Specifically, the principle of this utility model is as follows:

[0057] Multi-layered gradient decompression sealed chamber: From the outside in, the multi-layered gradient decompression sealed chamber consists of a rigid outer shell, an elastic silicone buffer layer, and a nano-ceramic oxygen-barrier inner liner, forming the core structure of the color-preserving chamber. The rigid outer shell adopts a cylindrical structure with an open top and a closed bottom, and its outer wall has annular reinforcing ribs to enhance the overall strength of the chamber, effectively resisting external physical impacts and protecting the internal structure from damage. The stepped groove on the inner edge of the bottom is used to fix the elastic silicone buffer layer. The elastic silicone buffer layer is nested inside the rigid outer shell, with its lower end fixed in the groove, and its inner wall has evenly distributed hemispherical shock-absorbing protrusions. These shock-absorbing protrusions can buffer when subjected to vibration or collision, reducing damage to the preserved flowers. The sealing lip formed by the outward-folding edge at the top, in conjunction with the removable sealing cap, forms an important sealing barrier. The nano-ceramic oxygen-barrier inner liner is a thin-walled cylindrical structure, with the top opening edge folded outward to form a flange edge, which is embedded between the buffer layer and the hot-melt adhesive layer. Nano-ceramic materials have excellent oxygen barrier properties, which can greatly prevent external oxygen from entering the chamber, providing a low-oxygen environment for the preserved flowers and slowing down the oxidation reaction.

[0058] Removable sealing cap with double sealing: The removable sealing cap features a snap-fit ​​part and a self-expanding silicone sealing ring on its edge. When the cap is closed, the self-expanding silicone sealing ring compresses the sealing lip of the elastic silicone buffer layer, creating a double sealing effect. An annular groove on the inner side of the snap-fit ​​part of the sealing cap is used to embed the self-expanding silicone sealing ring, which has a trapezoidal cross-section. This special design allows the sealing ring to better conform to the sealing surface under pressure, further improving sealing performance, effectively preventing air leakage, and ensuring the stability of the cabin environment.

[0059] Petal Support Net and Rotatable Clip: A petal support net, made of 304 stainless steel wire woven into a wavy mesh, is located at the center of the inner side of the sealing cover. This structure provides support for the preserved flowers, preventing deformation, while also allowing for some air circulation. The hydrophobic fluorine coating on the mesh surface prevents moisture condensation, avoiding damage to the preserved flowers. It connects to the sealing cover via a rotatable clip, which includes a pivot pin and limiting protrusions, locking when rotated to 90°. This allows the petal support net to be adjusted at an angle ranging from 15-30°, flexibly adapting to different shapes and placement needs of the preserved flowers. This ensures optimal display and support for the flowers, while also providing sufficient space below for placing other components or color-preserving liquid.

[0060] Inert Gas Slow-Release Chamber and Nitrogen Generator: A ring-shaped inert gas slow-release chamber is located on the lower half of the outer wall of the nano-ceramic oxygen-barrier inner liner, filled with a nitrogen generator. The nitrogen generator consists of composite particles of sodium nitrite and ammonium chloride, coated with a polyvinyl alcohol slow-release film, filling 70-80% of the chamber volume. When the environment inside the color-preserving chamber changes, such as when the oxygen content increases, sodium nitrite and ammonium chloride will react chemically under certain conditions to produce nitrogen gas. The polyvinyl alcohol slow-release film controls the reaction rate, allowing nitrogen gas to be slowly released into the chamber, maintaining a low-oxygen and nitrogen-rich environment, further inhibiting the oxidation process of the preserved flowers. A microporous ceramic baffle with a pore size of 5-10 μm is bonded to the chamber opening, preventing nitrogen generator leakage and also buffering and dispersing the released nitrogen gas, ensuring its uniform distribution within the chamber.

Claims

1. A sealed, antioxidant, color-preserving chamber for preserved flowers, characterized in that, include: The multi-layered gradient decompression sealed chamber consists of an outer shell, a buffer layer, and an oxygen-barrier inner liner, from the outside to the inside. The outer shell is a cylindrical structure with an open top and a closed bottom. The outer wall is provided with annular reinforcing ribs, and the bottom inner edge is provided with a stepped slot for nesting the upper edge of the elastic silicone buffer layer. The buffer layer is nested inside the outer shell, and its lower end is fixed by a slot. The inner wall is evenly distributed with hemispherical shock-absorbing protrusions, and the upper end is turned outward to form a sealing lip. The oxygen-barrier inner liner has a thin-walled cylindrical structure, with the top opening edge folded outward to form a flange edge; The removable sealing cap has a snap-fit ​​part and a self-expanding silicone sealing ring on its edge. When closed, the sealing ring presses against the sealing lip to form a double seal.

2. The sealed antioxidant preserved flower color-preserving chamber according to claim 1, characterized in that, The outer shell and the buffer layer are fixed together by a hot melt adhesive layer, and the flange edge is embedded between the buffer layer and the hot melt adhesive layer.

3. The sealed antioxidant preserved flower color-preserving chamber according to claim 2, characterized in that, The bottom of the oxygen-barrier inner liner is 10-15mm away from the bottom of the outer shell, forming a color-preserving liquid storage cavity. The interior of the chamber is filled with color-preserving liquid, which is a mixed solution of glycerin and acrylic resin. The liquid level is 1 / 3 to 1 / 2 of the chamber volume.

4. The sealed antioxidant preserved flower color-preserving chamber according to claim 3, characterized in that, The inner side of the fastening part is provided with an annular groove, and the sealing ring is pre-embedded in the annular groove. When the sealing cover is closed, the sealing ring is compressed and expands to fill the gap between the groove and the outer shell.

5. A sealed, antioxidant, preserved flower color-preserving chamber according to claim 4, characterized in that, The bottom of the oxygen-barrier inner liner is provided with an inert gas slow-release chamber, which is filled with a nitrogen generator. The chamber is separated from the oxygen-barrier inner liner by a microporous ceramic partition with a pore size of 5-10 μm.

6. A sealed, antioxidant, preserved flower color-preserving chamber according to claim 5, characterized in that, The bottom of the outer shell is provided with a one-way breathable moisture-proof valve, which is composed of an expanded polytetrafluoroethylene film and an activated carbon filter layer.

7. A sealed, antioxidant, preserved flower color-preserving chamber according to claim 6, characterized in that, The inner side of the sealing cover is provided with a petal support mesh, which is woven from 304 stainless steel wire into a wavy grid and coated with a hydrophobic fluorine coating.

8. A sealed, antioxidant, preserved flower color-preserving chamber according to claim 7, characterized in that, The petal support net is connected to the sealing cover by a buckle. After locking, the surface of the petal support net is inclined at 15-30° to the horizontal plane.

9. A sealed, antioxidant, preserved flower color-preserving chamber according to claim 8, characterized in that, The buffer layer is made of elastic silicone material, and the oxygen-barrier inner liner is specifically a nano-ceramic oxygen-barrier inner liner. A vacuum aluminum foil reflective layer is provided between the buffer layer and the oxygen-barrier inner liner.

10. A sealed, antioxidant, preserved flower color-preserving chamber according to claim 9, characterized in that, The sealing ring has a trapezoidal cross-section, and a peroxide crosslinking agent is pre-embedded inside the sealing ring.

Images