Multifunctional food moisture-proof sealing and fresh-keeping device with detachable drying cavity

Abstract

The application relates to the field of food storage and preservation technology, and discloses a multifunctional food moisture-proof sealing and preservation device with a detachable drying cavity, which comprises a food storage cylinder, a food moisture-proof sealing and preservation mechanism is arranged in the food storage cylinder, a gas-permeable hole plate is fixedly installed in the food storage cylinder, a gauze net is fixedly installed at the top of the gas-permeable hole plate, a moisture-proof agent placing bin is fixedly installed at the bottom of the gas-permeable hole plate, and a moisture-proof agent fixing cover plate is threadedly connected to the bottom of the moisture-proof agent placing bin. The multifunctional food moisture-proof sealing and preservation device with the detachable drying cavity is characterized in that the moisture-proof agent bag is arranged in the moisture-proof agent placing bin, the drying agent is physically isolated from the food storage area by using the gas-permeable hole plate and the gauze net, direct contact between the drying agent and the food is avoided, and the safety hidden danger of mistaken eating is eliminated; meanwhile, the gauze net can prevent food crumbs from falling into the moisture-proof agent placing bin, and the moisture absorption effect is uniform and stable.

Description

Technical Field

[0001] This invention relates to the field of food storage and preservation technology, specifically to a multifunctional food moisture-proof and sealing preservation device with a detachable drying chamber. Background Technology

[0002] Food moisture-proof and airtight preservation devices are core appliances used in home kitchens, food retail and storage scenarios for storing dry goods, grains, baking ingredients, snacks and other moisture-sensitive foods. They mainly reduce the relative humidity inside the container by using a sealed cavity and a drying and adsorption medium to inhibit mold growth and food oxidation and deterioration, thereby extending the shelf life and edible quality of the food.

[0003] Existing food moisture-proof and preservation containers mostly adopt a structure of sealed canisters with independent desiccant packets. The mainstream designs are divided into two categories: one is to directly mix the desiccant packet inside the food packaging bag, using the desiccant to absorb the moisture inside the bag. This method is low-cost and widely used; the other is to use sealed canisters or sealed barrels for food storage. Some sealed canisters have a fixed drying chamber in the lid or bottom, which is connected to the inside of the canister through a vent.

[0004] However, existing food moisture-proof and sealing preservation devices still have the following problems that urgently need to be solved:

[0005] 1. When desiccants are placed directly in food packaging bags or sealed containers, there is a lack of effective physical isolation structure. The desiccants can easily come into contact with food, posing a safety hazard of accidental ingestion. In addition, the moisture absorption effect is uneven and unstable.

[0006] Second, the fixed drying chamber and tank are mostly integrally formed or non-removable structures. Once the desiccant is saturated with moisture, it cannot be replaced or is extremely difficult to replace. This leads to the failure of the moisture-proof function and the overall scrapping of the device. It has a limited range of applications and cannot be used to select whether to use the drying function based on the type of food being stored.

[0007] Third, the existing fixing mechanism of the detachable drying compartment is too simple. If a single thread or simple buckle is used, children can easily open it with simple rotation or digging. There is no effective child lock mechanism to prevent accidental opening, which poses a great safety hazard of children ingesting desiccant.

[0008] Therefore, a multifunctional food moisture-proof sealing and preservation device with a detachable drying chamber is proposed. Summary of the Invention

[0009] (a) Technical problems to be solved

[0010] To address the shortcomings of existing technologies, this invention provides a multifunctional food moisture-proof and sealing preservation device with a detachable drying chamber. It has advantages such as effective isolation between desiccant and food, quick disassembly and replacement of the drying chamber, and a child-proof locking mechanism. It solves the problems of existing technologies, such as the risk of accidental ingestion due to mixed storage of desiccant and food, the inability to replace the fixed drying chamber leading to the overall scrapping of the device, and the lack of a child lock mechanism in the detachable drying chamber, which poses a safety hazard of accidental ingestion by children.

[0011] (II) Technical Solution

[0012] To achieve the objectives of effectively isolating the desiccant from the food, quickly disassembling and replacing the drying chamber, and having a locking mechanism to prevent accidental opening by children, the present invention provides the following technical solution: a multifunctional food moisture-proof sealing and preservation device with a detachable drying chamber, including a food storage cylinder, the top of which is threadedly connected to a sealing cylinder cover, and the interior of which is provided with a food moisture-proof sealing and preservation mechanism;

[0013] The food moisture-proof and sealing preservation mechanism includes a perforated plate, a mesh screen, a desiccant storage compartment, a desiccant fixing cover, a desiccant bag, a rectangular connecting seat, a rectangular connecting shaft, a limiting cylinder, a limiting spring, a connecting rod, a pull-out quick-release cover, a limiting insert rod, a rubber sealing ring, a limiting insertion hole, and a slot. The perforated plate is fixedly installed inside the food storage cylinder. A mesh screen is fixedly installed on the top of the perforated plate. A desiccant storage compartment is fixedly installed at the bottom of the perforated plate. A desiccant fixing cover is threadedly connected to the bottom of the desiccant storage compartment. The desiccant bag is movably installed inside the desiccant storage compartment. A rectangular connecting seat is fixedly installed at the bottom of the desiccant fixing cover. The seat has a rectangular connecting shaft that slides inside. A pull-out quick-release cover is fixedly installed at the bottom of the rectangular connecting shaft. At least two limiting cylinders are fixedly installed circumferentially at the bottom of the desiccant fixing cover. A limiting spring is fixedly installed inside each limiting cylinder. A connecting rod is slidably connected inside each limiting cylinder. The bottom of the connecting rod is fixedly connected to the pull-out quick-release cover. At least two downwardly extending limiting rods are fixedly installed circumferentially at the bottom of the vent plate. A rubber sealing ring is fitted to the outside of the pull-out quick-release cover. At least two limiting holes that match the limiting rods are opened at the top of the rubber sealing ring. A slot is opened at the bottom of the rubber sealing ring.

[0014] Preferably, the inner wall of the scooping groove is provided with anti-slip protrusions; the vent plate has a plurality of vent holes in its inner circumferential direction, and the food storage area in the food storage cylinder is connected to the desiccant storage compartment through the vent holes on the vent plate.

[0015] Preferably, the rectangular connecting seat has a rectangular groove inside, the rectangular connecting shaft is slidably disposed in the rectangular groove, and the outer side wall of the rectangular connecting shaft is in contact with the inner side wall of the rectangular groove.

[0016] Preferably, a limiting baffle is fixedly installed on the top of the connecting rod, the limiting baffle is slidably connected to the inside of the limiting cylinder, the top of the limiting tension spring is fixedly connected to the inner top wall of the limiting cylinder, and the bottom of the limiting tension spring is fixedly connected to the top of the limiting baffle.

[0017] Preferably, the outer wall of the pull-out quick-release cover is fitted to the inner wall of the food storage cylinder, and the rubber sealing ring is sleeved on the outside of the pull-out quick-release cover, with the outer wall of the rubber sealing ring fitted to the inner wall of the food storage cylinder.

[0018] Preferably, the pull-out quick-release cover has at least two limiting holes in the circumferential direction, and the bottom of the limiting rod passes through the limiting holes and is inserted into the limiting hole at the top of the rubber sealing ring.

[0019] Preferably, the inner wall of the bottom opening of the desiccant storage compartment is provided with an internal thread section, and the top of the desiccant fixing cover is provided with an external thread ring that is adapted to the internal thread section, and the external thread ring is screwed into the internal thread section.

[0020] Preferably, the outer edge of the perforated plate is fixedly connected to the inner wall of the food storage cylinder, and the bottom of the mesh is bonded to the top of the perforated plate with an adhesive.

[0021] A method of using a multifunctional food moisture-proof sealing and preservation device, based on a multifunctional food moisture-proof sealing and preservation device with a detachable drying chamber, includes the following steps:

[0022] S1. Remove the bottom seal and release the limit: First, pull down and remove the rubber sealing ring through the slot, so that the limit insertion hole at the top is disengaged from the limit insertion rod, thus releasing the bottom seal; then, pull down the pull-out quick-release cover plate, which drives the connecting rod to move down and stretches the limit spring, while simultaneously disengaging the limit hole on the pull-out quick-release cover plate from the limit insertion rod.

[0023] S2. Unscrew the bottom assembly and replace the desiccant: After the pull-out quick-release cover is disengaged from the limiting rod and loses its circumferential limit, rotate the pull-out quick-release cover. The pull-out quick-release cover drives the desiccant fixing cover to rotate synchronously through the rectangular connecting shaft and the rectangular connecting seat. Unscrew the desiccant fixing cover from the bottom of the desiccant storage compartment and remove the connected bottom assembly as a whole; replace the desiccant bag in the desiccant storage compartment.

[0024] S3. Reset the bottom assembly and install the seal: Align the bottom assembly with the bottom of the desiccant compartment, push the pull-out quick-release cover upwards, and slightly rotate the pull-out quick-release cover so that the desiccant fixing cover is one-third threadedly connected to the desiccant compartment, and the limiting hole on the pull-out quick-release cover is not engaged with the limiting rod; when the limiting hole on the pull-out quick-release cover is about to contact the limiting rod, pull the pull-out quick-release cover downwards so that the limiting hole on the pull-out quick-release cover is away from the limiting rod, and rotate the pull-out quick-release cover again to complete the remaining two-thirds of the threaded connection; finally, release the pull-out quick-release cover so that the limiting hole on the pull-out quick-release cover is engaged with the limiting rod; then, fit the rubber sealing ring on the bottom of the pull-out quick-release cover and engage the limiting hole with the limiting rod to complete the bottom sealing and locking;

[0025] S4. Food moisture-proof sealing and preservation: Finally, put the food into the food storage container and tighten the sealed container lid. The moisture inside the container will be absorbed by the desiccant bag to preserve the food.

[0026] (III) Beneficial Effects

[0027] Compared with the prior art, the present invention provides a multifunctional food moisture-proof sealing and preservation device with a detachable drying chamber, which has the following beneficial effects:

[0028] 1. This multifunctional food moisture-proof and sealing preservation device with a detachable drying chamber places the desiccant bag inside the desiccant storage chamber and uses a perforated plate and mesh to physically isolate the desiccant from the food storage area, avoiding direct contact between the desiccant and food and eliminating the safety hazard of accidental ingestion. At the same time, the mesh can prevent food debris from falling into the desiccant storage chamber, ensuring uniform and stable moisture absorption.

[0029] 2. This multifunctional food moisture-proof and sealing preservation device with a detachable drying chamber uses a threaded connection structure between the desiccant placement chamber and the desiccant fixing cover, along with a linkage design of a rectangular connecting seat, a rectangular connecting shaft, and a pull-out quick-release cover. This allows the entire bottom assembly to be unscrewed from the bottom of the food storage cylinder, eliminating the need to remove the food when replacing the desiccant. The operation is simple and quick, avoiding secondary contamination of the food.

[0030] 3. This multifunctional food moisture-proof and sealing preservation device with a detachable drying chamber locks the pull-out quick-release cover and the rubber sealing ring simultaneously through a limiting rod that passes through both the limiting hole on the pull-out quick-release cover and the limiting insertion hole at the top of the rubber sealing ring. Under normal use, it cannot be rotated or disassembled. The rubber sealing ring must be removed first, and the pull-out quick-release cover must be pulled down to disengage the limiting rod from the limiting hole before it can be rotated for disassembly. This two-step operation of "pull first and then rotate" is difficult for children to understand and complete, effectively preventing children from accidentally opening the child lock and eliminating the safety hazard of children accidentally ingesting desiccant. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the multifunctional food moisture-proof sealing and preservation device of the present invention.

[0032] Figure 2 This is a schematic diagram of the food moisture-proof sealing and preservation mechanism of the present invention;

[0033] Figure 3 This is a schematic diagram of the perforated plate structure of the present invention;

[0034] Figure 4 This is a schematic diagram of the desiccant storage compartment and desiccant fixing cover of the present invention;

[0035] Figure 5 This is a schematic diagram of the rectangular connecting seat and rectangular connecting shaft structure of the present invention;

[0036] Figure 6 This is a schematic diagram of the rubber sealing ring structure of the present invention;

[0037] Figure 7 This is a schematic diagram of the bottom structure of the rubber sealing ring of the present invention.

[0038] In the diagram: 1. Food storage cylinder; 2. Sealed cylinder lid; 3. Food moisture-proof and sealing preservation mechanism; 301. Ventilation perforated plate; 3011. Ventilation hole; 302. Mesh; 303. Desiccant storage compartment; 304. Desiccant fixing cover; 305. Desiccant bag; 306. Rectangular connecting seat; 307. Rectangular connecting shaft; 308. Limiting cylinder; 309. Limiting tension spring; 310. Connecting rod; 311. Pull-out quick-release cover; 312. Limiting insertion rod; 313. Rubber sealing ring; 314. Limiting insertion hole; 315. Removal groove. Detailed Implementation

[0039] 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.

[0040] Example 1:

[0041] This embodiment is the basic core implementation of the present invention, aiming to fully explain the complete composition structure, assembly relationship and complete working process of the device, and focusing on explaining the two-stage thread engagement design principle and anti-accidental opening self-locking logic of the bottom quick-release component.

[0042] Please refer to Figure 1-7The multifunctional food moisture-proof sealing and preservation device with a detachable drying chamber in this embodiment includes a food storage cylinder 1, which is a cylindrical structure with an open top. The outer wall of the top is provided with an external thread section, and the inner wall of the sealing cylinder cover 2 is provided with a matching internal thread section. The sealing cylinder cover 2 is screwed onto the top of the food storage cylinder 1 by the thread to achieve the sealing opening and closing of the top of the cylinder. The lower middle part of the food storage cylinder 1 is provided with a food moisture-proof sealing and preservation mechanism 3, which is used to construct an independent detachable drying chamber and simultaneously realize multiple functions such as physical moisture isolation, quick disassembly and replacement, anti-loosening self-locking, and child-proof opening.

[0043] The food moisture-proof and airtight preservation mechanism 3 includes a perforated plate 301, a mesh screen 302, a desiccant storage compartment 303, a desiccant fixing cover 304, a desiccant bag 305, a rectangular connecting seat 306, a rectangular connecting shaft 307, a limiting cylinder 308, a limiting tension spring 309, a connecting rod 310, a pull-out quick-release cover 311, a limiting insertion rod 312, a rubber sealing ring 313, a limiting insertion hole 314, and a squeegee groove 315. The perforated plate 301 is horizontally fixed inside the food storage cylinder 1, dividing the internal space of the cylinder into an upper food storage area and a lower drying chamber area. The two areas are connected by airflow and completely separated by a perforated structure. The mesh screen 302 is laid flat and fixed to the perforated plate. The top of the perforated plate 301 is used to prevent food debris from falling into the drying chamber below, thus avoiding contamination of the desiccant by the debris. The desiccant storage chamber 303 is a cylindrical structure with openings at both the top and bottom. Its top is fixedly installed at the center of the bottom of the perforated plate 301. The internal cavity of the desiccant storage chamber 303 maintains airflow communication with the upper food storage area through the perforated plate 301. The desiccant fixing cover 304 is installed at the bottom opening of the desiccant storage chamber 303 by a threaded connection, and is used to seal the bottom of the drying chamber. The desiccant bag 305 is movably placed in the internal cavity of the desiccant storage chamber 303, and is filled with food-grade desiccant such as silica gel desiccant or molecular sieve desiccant.

[0044] A rectangular connecting seat 306 is fixedly installed at the bottom center of the desiccant fixing cover 304. A rectangular connecting shaft 307 is slidably inserted into the internal cavity of the rectangular connecting seat 306. Both have rectangular cross-sections, enabling synchronous circumferential rotation and relative axial sliding transmission. The bottom end face of the rectangular connecting shaft 307 is fixedly connected to the top center of the pull-out quick-release cover 311. Two limiting cylinders 308 are evenly fixedly installed circumferentially at the bottom of the desiccant fixing cover 304. The two limiting cylinders 308 are symmetrically distributed about the central axis of the device. A limiting spring 309 is fixedly installed in the internal cavity of each limiting cylinder 308. A connecting rod 310 is slidably connected inside each limiting cylinder 308. The bottom of the connecting rod 310 extends out of the limiting cylinder 308 and is fixedly connected to the top end face of the pull-out quick-release cover 311. The limiting spring 309 always provides an upward elastic force, so that the pull-out quick-release cover 311 maintains an upward locking tendency under normal conditions.

[0045] Two downwardly extending limiting rods 312 are fixedly installed circumferentially at the bottom of the vent plate 301, and the two limiting rods 312 are symmetrically distributed about the central axis. The pull-out quick-release cover plate 311 is a circular plate structure, and a rubber sealing ring 313 is sleeved on its outside. The top end face of the rubber sealing ring 313 has two limiting holes 314 that are adapted to the position and size of the limiting rods 312. The limiting rods 312 can be inserted into the limiting holes 314 to realize the assembly and positioning of the rubber sealing ring 313. The bottom end face of the rubber sealing ring 313 has a concave prying groove 315, which makes it easy for the user to pry and remove the rubber sealing ring 313 with their fingers.

[0046] The complete workflow of this embodiment is as follows:

[0047] 1. Disassembly and Replacement Process

[0048] Step 1: Disassemble the bottom seal and release the limit: First, insert your finger into the retrieval groove 315 and pull it down to remove the rubber sealing ring 313, so that the limit insertion hole 314 on its top is disengaged from the limit insertion rod 312, thus releasing the bottom outer seal; then, pull down the pull-out quick-release cover plate 311. The pull-out quick-release cover plate 311 drives the connecting rod 310 to move downward and stretches the limit spring 309, while at the same time making the limit hole on the pull-out quick-release cover plate 311 completely disengage from the limit insertion rod 312, thus releasing the circumferential rotation limit.

[0049] Step 2, Unscrew the bottom assembly and replace the desiccant: After the pull-out quick-release cover 311 disengages from the limiting rod 312 and loses its circumferential limit, rotate the pull-out quick-release cover 311. The pull-out quick-release cover 311 drives the desiccant fixing cover 304 to rotate synchronously through the rectangular connecting shaft 307 and the rectangular connecting seat 306. Unscrew the desiccant fixing cover 304 from the bottom of the desiccant storage compartment 303 and remove the connected bottom assembly as a whole; take out the expired desiccant bag 305 in the desiccant storage compartment 303 and replace it with a new desiccant medium.

[0050] 2. Reset Installation Process: Detailed Explanation of Two-Stage Thread Engagement Design

[0051] Step 3: Reset the bottom assembly and install the seal: Align the bottom assembly with the bottom of the desiccant placement compartment 303, and complete the installation using a two-stage threaded connection. The design principle and necessity of this step are as follows:

[0052] The limiting rod 312 is fixed to the bottom of the vent plate 301 and extends downwards, with its axial extension covering the latter half of the thread engagement stroke. If an attempt is made to tighten the thread in one rotation, when the thread has been screwed in about one-third of the stroke, the upper surface of the pull-out quick-release cover plate 311 has risen to the lower end face of the limiting rod 312. At this time, the limiting hole and the limiting rod 312 are not aligned in the circumferential position, and the limiting rod 312 will directly abut against the top surface of the pull-out quick-release cover plate 311, forming circumferential rotational interference, preventing the cover plate from continuing to rotate, resulting in the thread not being able to be fully engaged and causing a problem of poor sealing.

[0053] To resolve the spatial interference between the "thread engagement stroke" and the "pin limit," this solution employs a segmented engagement logic. The specific operation and principle are as follows:

[0054] 1. Initial positioning during the first stage of screwing: Push the pull-out quick-release cover 311 upwards and rotate it slightly so that the desiccant fixing cover 304 is one-third threadedly connected to the desiccant storage compartment 303; at this stage, the pull-out quick-release cover 311 has not yet contacted the limiting rod 312 and can rotate without obstruction, completing the initial coaxial positioning of the bottom components, ensuring that the subsequent screwing will not be skewed, and at this time, the limiting hole on the pull-out quick-release cover 311 is not connected to the limiting rod 312.

[0055] 2. Pulling down to avoid interference space: When the limiting hole on the pull-out quick-release cover plate 311 is about to contact the limiting insert rod 312, pull down the pull-out quick-release cover plate 311. Utilize the axial sliding characteristics of the rectangular connecting shaft 307 and the rectangular connecting seat 306, and the sliding characteristics of the connecting rod 310 and the limiting cylinder 308, to move the cover plate downwards relative to the desiccant fixing cover plate 304 by a certain distance, so that the top surface of the cover plate is lower than the lower end surface of the limiting insert rod 312, completely avoiding the rotational interference space of the insert rod. At this time, continue to rotate the pull-out quick-release cover plate 311 to complete the remaining two-thirds of the threaded connection without obstruction, so that the desiccant fixing cover plate 304 and the desiccant placement chamber 303 are completely screwed and fitted together, ensuring reliable sealing of the inner thread.

[0056] 3. Automatic locking with spring: After the threads are fully tightened, the limiting holes on the pull-out quick-release cover plate 311 and the limiting rod 312 are aligned circumferentially; when the pull-out quick-release cover plate 311 is released, the rebound force of the limiting spring 309 drives the cover plate to return to its original position, and the limiting rod 312 is precisely inserted into the limiting hole on the cover plate to complete the circumferential anti-loosening lock and prevent the threads from loosening on their own due to vibration.

[0057] 4. Outer sealing installation: Finally, a rubber sealing ring 313 is fitted onto the bottom of the pull-out quick-release cover 311, and the limiting insertion hole 314 is inserted into the limiting insertion rod 312 to complete the bottom outer sealing and sealing element positioning, forming a double sealing barrier.

[0058] Step 4: Food moisture-proof sealing and preservation: Place the food into the food storage container 1 and tighten the sealing container lid 2. The moisture inside the container enters the desiccant placement chamber 303 through the vent plate 301 and is continuously absorbed by the desiccant bag 305, achieving a low humidity environment inside the container and completing the long-term moisture-proof preservation of the food.

[0059] This two-stage screw-on design achieves three major technical effects: First, it completely avoids the spatial interference of the limiting rod on the screw-on thread, ensuring that the thread is fully tightened and the seal is reliable; second, after the thread is tightened, it automatically aligns with the pin position, and can be directly self-locked when released, making the operation smooth and efficient; third, it forms a two-step operation logic of "pull-down unlocking + rotation disassembly", which prevents children from opening it with a single rotation action, and has a natural anti-child-accidental opening property.

[0060] In summary, this multifunctional food moisture-proof and sealing preservation device with a detachable drying chamber, by placing the desiccant bag 305 inside the desiccant storage chamber 303 and using the perforated plate 301 and mesh 302 to physically isolate the desiccant from the food storage area, avoids direct contact between the desiccant and food, eliminates the safety hazard of accidental ingestion, and at the same time, the mesh 302 can prevent food debris from falling into the desiccant storage chamber 303, ensuring uniform and stable moisture absorption.

[0061] Furthermore, this multifunctional food moisture-proof sealing and preservation device with a detachable drying chamber, through the threaded connection structure between the desiccant placement chamber 303 and the desiccant fixing cover 304, combined with the linkage design of the rectangular connecting seat 306, the rectangular connecting shaft 307 and the pull-out quick-release cover 311, allows the entire bottom assembly to be unscrewed from the bottom of the food storage cylinder 1. The desiccant can be replaced without removing the food, making the operation simple and quick and avoiding secondary contamination of the food.

[0062] Furthermore, this multifunctional food moisture-proof sealing and preservation device with a detachable drying chamber locks the pull-out quick-release cover 311 and the rubber sealing ring 313 simultaneously through the limiting hole on the pull-out quick-release cover 311 and the limiting insertion hole 314 at the top of the rubber sealing ring 313 by the limiting rod 312. Under normal use, it cannot be rotated or disassembled. The rubber sealing ring 313 must be removed first, and the pull-out quick-release cover 311 must be pulled down to disengage the limiting rod 312 from the limiting hole before it can be rotated for disassembly. This two-step operation of "pull first and then rotate" is difficult for children to understand and complete, effectively preventing children from accidentally opening the child lock and eliminating the safety hazard of children accidentally ingesting desiccant.

[0063] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0064] 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. A multifunctional food moisture-proof and sealing preservation device with a detachable drying chamber, comprising a food storage cylinder (1), characterized in that: The top of the food storage cylinder (1) is threaded with a sealing cylinder cover (2), and the inside of the food storage cylinder (1) is provided with a food moisture-proof sealing and preservation mechanism (3). The food moisture-proof and sealing preservation mechanism (3) includes a perforated plate (301), a mesh screen (302), a desiccant storage compartment (303), a desiccant fixing cover (304), a desiccant bag (305), a rectangular connecting seat (306), a rectangular connecting shaft (307), a limiting cylinder (308), a limiting tension spring (309), a connecting rod (310), a pull-out quick-release cover (311), a limiting insertion rod (312), a rubber sealing ring (313), a limiting insertion hole (314), and a slot (315). A perforated plate (301) is fixedly installed inside the food storage container (1). A mesh screen (302) is fixedly installed on the top of the perforated plate (301). A desiccant storage compartment (303) is fixedly installed on the bottom of the perforated plate (301). A desiccant fixing cover (304) is threadedly connected to the bottom of the desiccant storage compartment (303). A desiccant bag (305) is movably installed inside the desiccant storage compartment (303). A rectangular... A rectangular connecting seat (306) is slidably connected to a rectangular connecting shaft (307). A pull-out quick-release cover plate (311) is fixedly installed at the bottom of the rectangular connecting shaft (307). At least two limiting cylinders (308) are fixedly installed circumferentially at the bottom of the desiccant fixing cover plate (304). A limiting spring (309) is fixedly installed inside each limiting cylinder (308). A connecting rod (310) is slidably connected inside each limiting cylinder (308). The bottom of the connecting rod (310) is fixedly connected to the pull-out quick-release cover plate (311). At least two downwardly extending limiting rods (312) are fixedly installed on the bottom circumferentially of the vent plate (301). The pull-out quick-release cover plate (311) is externally sealed with a rubber sealing ring (313). The top of the rubber sealing ring (313) is provided with at least two limiting holes (314) that are adapted to the limiting rods (312). The bottom of the rubber sealing ring (313) is provided with a scooping groove (315).

2. The multifunctional food moisture-proof sealing and preservation device with a detachable drying chamber according to claim 1, characterized in that: The inner wall of the scooping groove (315) is provided with anti-slip protrusions; the vent plate (301) has a number of vent holes (3011) in the circumferential direction; the food storage area in the food storage cylinder (1) is connected to the desiccant storage chamber (303) through the vent holes (3011) on the vent plate (301).

3. The multifunctional food moisture-proof sealing and preservation device with a detachable drying chamber according to claim 1, characterized in that: The rectangular connecting seat (306) has a rectangular groove inside, and the rectangular connecting shaft (307) is slidably disposed in the rectangular groove. The outer side wall of the rectangular connecting shaft (307) is in contact with the inner side wall of the rectangular groove.

4. A multifunctional food moisture-proof sealing and preservation device with a detachable drying chamber according to claim 1, characterized in that: A limiting baffle is fixedly installed on the top of the connecting rod (310), the limiting baffle is slidably connected to the inside of the limiting cylinder (308), the top of the limiting tension spring (309) is fixedly connected to the inner top wall of the limiting cylinder (308), and the bottom of the limiting tension spring (309) is fixedly connected to the top of the limiting baffle.

5. A multifunctional food moisture-proof sealing and preservation device with a detachable drying chamber according to claim 1, characterized in that: The outer wall of the pull-out quick-release cover (311) is in contact with the inner wall of the food storage cylinder (1), and the rubber sealing ring (313) is sleeved on the outside of the pull-out quick-release cover (311), and the outer wall of the rubber sealing ring (313) is in contact with the inner wall of the food storage cylinder (1).

6. A multifunctional food moisture-proof sealing and preservation device with a detachable drying chamber according to claim 1, characterized in that: The pull-out quick-release cover (311) has at least two limiting holes in the circumferential direction. The bottom of the limiting rod (312) passes through the limiting hole and is inserted into the limiting hole (314) at the top of the rubber sealing ring (313).

7. A multifunctional food moisture-proof sealing and preservation device with a detachable drying chamber according to claim 1, characterized in that: The bottom opening of the desiccant storage compartment (303) has an internal thread section on its inner side wall, and the top of the desiccant fixing cover plate (304) has an external thread ring that matches the internal thread section. The external thread ring is screwed into the internal thread section.

8. A multifunctional food moisture-proof sealing and preservation device with a detachable drying chamber according to claim 1, characterized in that: The outer edge of the perforated plate (301) is fixedly connected to the inner wall of the food storage cylinder (1), and the bottom of the mesh (302) is fixedly bonded to the top of the perforated plate (301) by an adhesive.

9. A method of using a multifunctional food moisture-proof sealing and preservation device, characterized in that, The multifunctional food moisture-proof sealing and preservation device with a detachable drying chamber as described in claims 1-8 includes the following steps: S1. Disassembling the bottom seal and releasing the limit: First, pull down and remove the rubber sealing ring (313) through the prying groove (315), so that the limit insertion hole (314) on its top is disengaged from the limit insertion rod (312), and the bottom seal is released; then, pull down the pull-out quick-release cover plate (311), the pull-out quick-release cover plate (311) drives the connecting rod (310) to move down and stretch the limit tension spring (309), and at the same time, the limit hole on the pull-out quick-release cover plate (311) is disengaged from the limit insertion rod (312). S2. Unscrew the bottom assembly and replace the desiccant: After the pull-out quick-release cover (311) is disengaged from the limiting rod (312) and loses its circumferential limit, rotate the pull-out quick-release cover (311). The pull-out quick-release cover (311) drives the desiccant fixing cover (304) to rotate synchronously through the rectangular connecting shaft (307) and the rectangular connecting seat (306). Unscrew the desiccant fixing cover (304) from the bottom of the desiccant storage compartment (303) and remove the connected bottom assembly as a whole; replace the desiccant bag (305) in the desiccant storage compartment (303). S3. Reset the bottom assembly and install the seal: Align the bottom assembly with the bottom of the desiccant storage compartment (303), push the pull-out quick-release cover (311) upward, and slightly rotate the pull-out quick-release cover (311) so that the desiccant fixing cover (304) is one-third threadedly connected to the desiccant storage compartment (303), and the limiting hole on the pull-out quick-release cover (311) is not inserted into the limiting rod (312); when the limiting hole on the pull-out quick-release cover (311) is about to contact the limiting rod (312), pull the pull-out quick-release cover downward. (311) Move the limiting hole on the pull-out quick-release cover (311) away from the limiting rod (312), and rotate the pull-out quick-release cover (311) again to complete the remaining two-thirds of the threaded connection; finally, loosen the pull-out quick-release cover (311) so that the limiting hole on the pull-out quick-release cover (311) is inserted into the limiting rod (312); then, put a rubber sealing ring (313) on the bottom of the pull-out quick-release cover (311) and insert the limiting hole (314) into the limiting rod (312) to complete the bottom sealing and locking; S4. Food moisture-proof sealing and preservation: Finally, put the food into the food storage container (1) and tighten the sealing container lid (2) to absorb the moisture in the container through the desiccant bag (305) for preservation.

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