Rotary vacuum sealing tank

Abstract

The invention relates to the technical field of vacuum storage equipment, and discloses a rotary vacuum sealing tank which comprises a tank body, a sealing cover is arranged in the tank body, a rotary cover is rotatably arranged on the outer side of the sealing cover, a sealing piece groove is formed in the periphery of the sealing cover, a sealing piece is arranged in the sealing piece groove, and the sealing piece is tightly attached to the inner wall of the tank body. Inclined annular clamping grooves are formed in the two sides of the sealing cover, the tops of the annular clamping grooves communicate with insertion chutes, positioning convex points matched with the annular clamping grooves and the insertion chutes are formed in the two sides of the inner wall of the rotating cover, an insertion column is fixedly connected to the bottom of the rotating cover, an exhaust pipe communicates with the interior of the sealing cover, and an isolation hood is installed at the bottom of the sealing cover. According to the efficient vacuum storage tank based on the rotary sealing assembly, through the integrated design of rotary locking and vacuum sealing, the vacuum storage effect of one-hand operation, rapidness, high efficiency and lasting sealing is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vacuum storage devices, in particular to a rotary vacuum sealed tank. BACKGROUND

[0002] In daily life, the storage and preservation of food, tea leaves, coffee beans, medicinal materials and other items is a common problem. Oxygen in the air is the main factor leading to oxidation, deterioration, dampness and loss of flavor of the items. In order to extend the shelf life of the items, vacuum storage tanks have emerged.

[0003] Currently, vacuum storage tanks on the market are mainly divided into the following categories: Ordinary threaded sealed tank: this type of storage tank only provides physical barrier by screwing, cannot exhaust the internal air, the sealing effect is limited, and it is difficult to achieve long-term preservation; Manual air pumping vacuum tank: this type of storage tank is usually equipped with a manual air pumping pump, the user needs to press the air pumping pump repeatedly to exhaust the air in the tank, the disadvantage is that the operation is complicated, time-consuming and labor-intensive, and the air pumping pump as an independent component is easy to lose or damage; Electric vacuum tank: adopts electric pump to exhaust air, high efficiency, but needs power supply or battery, increases cost and use limit, and the structure is complex, not easy to clean; Pressing type vacuum tank: some designs exhaust part of the air by pressing the lid, but the exhaust is usually not complete, the degree of negative pressure is low, the sealing reliability is poor, and the lid structure is complex and easy to fail.

[0004] In addition, regardless of the type of storage tank, users often forget the storage date, which makes it impossible to accurately judge the freshness of the items, causing unnecessary waste, and few existing products organically combine efficient vacuum sealing function with convenient date recording function.

[0005] Chinese patent CN220243924U discloses a vacuum sealed tank, which can realize more compact structure, improve aesthetic appearance, control valve sliding by rotating knob to open and close air pumping channel, simple structure, low cost effect, but cannot realize the effect of new type of vacuum storage tank without additional tools, simple and fast operation, reliable sealing effect, stable structure and date management function. SUMMARY

[0006] In order to solve the above problems, the application is realized by the following technical scheme: a rotary vacuum sealing tank, comprising a tank body, a sealing cover arranged inside the tank body, a rotary cover rotatably arranged outside the sealing cover, a sealing sheet groove arranged on the periphery of the sealing cover, a sealing sheet arranged in the sealing sheet groove, the sealing sheet being tightly attached to the inner wall of the tank body, an annular clamping groove obliquely arranged on both sides of the sealing cover, an insertion oblique groove communicated with the top of the annular clamping groove, positioning protrusions matched with the annular clamping groove and the insertion oblique groove arranged on both sides of the inner wall of the rotary cover, an insertion column fixedly connected to the bottom of the rotary cover, an exhaust pipe communicated with the inside of the sealing cover, an isolation cover arranged on the bottom of the sealing cover, and a handle arranged on the top of the rotary cover.

[0007] Preferably, the exhaust pipe is arranged at the center of the rotary cover, the aperture of the exhaust pipe is 8 mm, and the diameter of the insertion column is in interference fit with the aperture of the exhaust pipe.

[0008] Preferably, the tank body is a component made of high borosilicate glass material, and the sealing sheet and the insertion column are components made of food-grade silica gel material.

[0009] Preferably, a plurality of air vents are arranged on the bottom of the isolation cover, and the air vents are uniformly distributed on the bottom of the isolation cover.

[0010] Preferably, an isolation cover mounting groove is arranged on the bottom of the sealing cover, and the isolation cover is inserted into the inner wall of the isolation cover mounting groove.

[0011] Preferably, L-shaped clamping grooves are arranged on both sides of the inner wall of the isolation cover mounting groove, and a pair of cylindrical clamping blocks matched with the L-shaped clamping grooves are fixedly connected to the inner circle of the isolation cover.

[0012] Preferably, the rotary cover and the sealing cover are movably connected, so that the rotary cover can be flexibly rotated around the central axis of the sealing cover.

[0013] Preferably, the rotary cover comprises an installation groove arranged on the top, a date disc arranged on the top of the installation groove, a date indicating disc rotatably arranged in the installation groove, a date indicating groove arranged on one side of the date indicating disc, a month disc base rotatably arranged in the date indicating disc, a month disc arranged on the top of the month disc base, and a month pointer arranged on the top of the date indicating disc.

[0014] The application provides a rotary vacuum sealing tank, which has the following beneficial effects: The rotary vacuum sealing tank can complete vacuumizing and sealing through simple "press-rotate" action, and the whole process only needs several seconds, without any manual or electric air pump, and the operation experience is excellent, and the high-efficiency vacuum storage is realized, the mechanical force increasing principle of the spiral clamping groove can generate strong downward pressure, so that the sealing sheet is tightly combined with the tank wall, and the interference fit of the insertion column and the exhaust pipe is combined, so that double sealing guarantee is realized, the vacuum maintaining time is long, and the effect is obviously better than that of the traditional storage tank, the adjustable date recording disc is integrated on the top of the cover, the user can mark the storage date in time, the shelf life of the goods is conveniently managed, waste is avoided, and the design concept of people-oriented is embodied, the design of the isolation cover effectively prevents the powder-shaped content from blocking the exhaust passage during air pumping, and the reliability and service life of the product are greatly improved, and the pain point of similar products is solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The high-efficiency vacuum storage tank structure based on the rotary sealing assembly provided by the application is shown in the schematic view. Figure 2 The sealing cover and the rotary cover structure of the application is shown in the schematic view. Figure 3 The sealing cover structure of the application is shown in the schematic view. Figure 4 The rotary cover structure of the application is shown in the schematic view. Figure 5 The internal structure of the sealing cover of the application is shown in the schematic view. Figure 6 The sealing cover and the rotary cover structure of the application is shown in the schematic view. Figure 7 The sealing cover and the isolation cover structure of the application is shown in the schematic view. Figure 8 The date disc and the month disc structure of the application is shown in the schematic view. Figure 9 The handle structure of the application is shown in the schematic view.

[0016] In the figure: 1, tank body; 2, sealing cover; 3, rotary cover; 301, mounting groove; 302, date disc; 303, date indicating disc; 304, date indicating groove; 305, month disc base; 306, month disc; 307, month pointer; 4, sealing sheet; 5, annular clamping groove; 6, insertion inclined groove; 7, positioning convex point; 8, insertion column; 9, exhaust pipe; 10, isolation cover; 11, air hole; 12, isolation cover mounting groove; 13, L-shaped clamping groove; 14, cylindrical clamping block; 15, handle. DETAILED DESCRIPTION

[0017] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present application.

[0018] The first embodiment, as shown in the drawings, Figures 1 to 9 The present application provides a technical solution: a rotary vacuum sealing tank, comprising a tank body 1, a sealing cover 2 is arranged inside the tank body 1, a rotary cover 3 is arranged on the outside of the sealing cover 2, a sealing sheet groove is arranged on the circumference of the sealing cover 2, and a sealing sheet 4 is arranged in the sealing sheet groove, the sealing sheet 4 is tightly attached to the inner wall of the tank body 1, an annular clamping groove 5 is arranged on the two sides of the sealing cover 2, an insertion inclined groove 6 is communicated at the top of the annular clamping groove 5, positioning protrusions 7 are arranged on the inner wall of the rotary cover 3 and matched with the annular clamping groove 5 and the insertion inclined groove 6, an insertion column 8 is fixedly connected to the bottom of the rotary cover 3, an exhaust pipe 9 is communicated in the sealing cover 2, an isolation cover 10 is installed at the bottom of the sealing cover 2, and a handle 15 is arranged at the top of the rotary cover 3.

[0019] When a user uses it, first, the to-be-stored object is put into the tank body 1, then the sealing cover 2 assembly is aligned with the tank opening, and it is ensured that the positioning protrusions 7 on the rotary cover 3 are aligned with the entrance of the insertion inclined groove 6 on the side of the sealing cover 2, at this time, the rotary cover 3 is pressed downward, the positioning protrusions 7 slide downward along the inclined guide of the insertion inclined groove 6, and at the same time, the entire sealing cover 2 assembly is moved downward, so that the sealing sheet 4 preliminarily contacts and attaches to the inner wall of the tank body 1, when pressed to the bottom, the user keeps the pressing state and starts to rotate the rotary cover 3, during the rotation, the positioning protrusions 7 slide from the bottom of the insertion inclined groove 6 into the inclined annular clamping groove 5, since the annular clamping groove 5 itself is spirally descending, the rotary motion of the positioning protrusions 7 is converted into a continuous downward linear traction force, this force is transmitted to the sealing cover 2 through the rotary cover 3, so that it is further pulled downward, this process will strongly extrude the sealing sheet 4, so that it is deformed and tightly filled in the small gap between the sealing cover 2 and the inner wall of the tank body 1, to form a reliable radial seal, at the same time, the compressed air in the tank is discharged through the isolation cover 10 and the exhaust pipe 9, when the rotary cover 3 is rotated to the end of the annular clamping groove 5, the insertion column 8 is completely inserted and blocked in the exhaust pipe 9, cutting off the air passage between the inside and outside, at this time, a stable negative pressure environment, i.e. a vacuum state, is formed in the tank, and the sealing operation is completed.

[0020] The second embodiment, on the basis of the first embodiment, please refer to Figures 2 to 9As shown, the top of the rotating cover 3 is injection molded with two symmetrical fixing ears extending upward from the top of the rotating cover 3, having a certain thickness and strength for bearing the rotating force of the handle 15. On the outer side of the fixing ear, an arc-shaped handle 15 is arranged, and the two ends of the handle 15 are also designed with connecting parts matched with the fixing ear. To realize the rotating connection, a through insertion hole is respectively formed on the same axis on the connecting part of the fixing ear and the handle 15. When the connecting part of the handle 15 is attached to the fixing ear, the insertion holes of the two can be accurately aligned. A cylindrical fixing pin is used as a rotating shaft, which is sequentially inserted from the outside through the insertion hole on one side of the handle 15, the insertion hole of the fixing ear, and the insertion holes of the other side of the fixing ear and the handle 15, and the handle 15 and the fixing ear are pivoted together. The end of the fixing pin is fixed by interference fit to prevent it from falling off. The key is that a positioning sealing ring is sleeved on the outside of the fixing pin, which is made of materials with elasticity and friction coefficient, such as rubber, silicone or Teflon, etc. During assembly, the positioning sealing ring is pre-installed between the connecting surface of the fixing ear and the handle 15 and located in the inner cavity of the insertion hole. When the fixing pin is inserted, the positioning sealing ring is radially compressed and tightly filled between the outer wall of the fixing pin and the inner wall of the insertion hole. When the user rotates the handle 15, the outer surface of the positioning sealing ring and the inner wall of the insertion hole, as well as the inner surface of the positioning sealing ring and the outer surface of the fixing pin, will slide relative to each other. Due to the friction coefficient of the material and the existence of normal pressure, a continuous and stable friction torque is generated, which hinders the free rotation of the handle 15. The user needs to exert a certain force to overcome it, thereby forming a damping feeling in the hand feeling. This damping effect avoids the free falling of the handle 15 under the action of gravity, eliminates the noise and impact on the components caused by rapid tapping, improves the quality and user experience of the product, realizes the convenient folding of the handle 15 to save space, and significantly improves the operation feeling and quality feeling of the product through the damping effect. At the same time, its friction positioning and gap sealing function also enhance the practicality and durability of the product.

[0021] Preferably, the exhaust pipe 9 is arranged at the center of the rotating cover 3, and the aperture of the exhaust pipe 9 is 8mm. The diameter of the insertion column 8 is interference fit with the aperture of the exhaust pipe 9. The exhaust pipe 9 is arranged at the center, so that no matter how the items in the tank are stacked, the airflow path is relatively the shortest and most unobstructed, ensuring the exhaust efficiency. The aperture of 8mm is optimized, which can ensure that air can be discharged in time during rapid rotation and pressing, avoid internal back pressure from being too large to cause operation difficulty, and also will not affect the structural strength and the reliability of the final sealing due to the aperture being too large. The interference fit between the insertion column 8 and the exhaust pipe 9 is the key to realizing the final airtight sealing. When rotating in place, the insertion column 8 is inserted into the exhaust pipe 9 with a certain extrusion force, which utilizes the elastic deformation of silicone to fill all micro-unevenness and form a reliable physical barrier, effectively preventing air from slowly flowing back through the channel, thereby long-term maintaining the vacuum degree in the tank.

[0022] Preferably, the can body 1 is a component made of high borosilicate glass, and the sealing sheet 4 and the insertion column 8 are components made of food-grade silica gel. The can body 1 adopts high borosilicate glass, which has extremely low expansion coefficient, excellent chemical stability and heat shock resistance, which means that it will not react with the contents, especially acidic or alkaline food, will not release harmful substances, and can withstand certain temperature changes, and its high transparency also facilitates users to observe the inventory and status of the internal items at any time. The sealing sheet 4 and the insertion column 8 adopt food-grade silica gel, which is non-toxic and odorless and meets food safety standards. More importantly, the silica gel material has excellent elasticity and flexibility, which can well adapt to the small imperfections on the glass surface, ensure the tightness of the seal, and its wear resistance and aging resistance also ensure the service life of the product.

[0023] Preferably, the isolation cover 10 is provided with a plurality of air holes 11 at the bottom, and the plurality of air holes 11 are uniformly distributed at the bottom of the isolation cover 10. The design of the isolation cover 10 and its air holes 11 plays a crucial role in protection. During the exhaust process, the airflow in the can will carry some small powders or debris, such as coffee powder, tea leaves, etc. If there is no isolation cover 10, these impurities are easy to be sucked into the exhaust pipe 9, causing blockage and leading to vacuum failure. The isolation cover 10 acts as a physical barrier to effectively block these impurities, and the uniformly distributed air holes 11 at the bottom ensure that air can pass freely and smoothly, without affecting the exhaust efficiency due to the presence of the isolation cover 10. This design ensures system reliability while taking into account functionality.

[0024] Preferably, the sealing cover 2 is provided with an isolation cover mounting groove 12 at the bottom, and the outer side of the isolation cover 10 is inserted into the inner wall of the isolation cover mounting groove 12. The plug-in mounting method greatly improves the maintainability and cleaning convenience of the product. After a period of use, dirt or food residue may be attached to the inside and outside of the isolation cover 10. Through the simple plug-in design, users can easily remove the isolation cover 10 from the sealing cover 2, thoroughly clean and disinfect it, and then reinstall it, ensuring the sanitary environment inside the storage can, which is particularly important for food storage.

[0025] Preferably, the two sides of the inner wall of the isolation cover mounting groove 12 are provided with L-shaped clamping grooves 13, and the inner ring of the isolation cover 10 is fixedly connected with a pair of cylindrical clamping blocks 14 matched with the L-shaped clamping grooves 13. The cooperation of the L-shaped clamping grooves 13 and the cylindrical clamping blocks 14 is a reinforcement and optimization of simple insertion. During installation, the user aligns the cylindrical clamping blocks 14 of the isolation cover 10 with the vertical openings of the L-shaped clamping grooves 13, inserts downward, and then slightly rotates the isolation cover 10 to make the cylindrical clamping blocks 14 slide into the horizontal part of the L-shaped clamping grooves 13. At this time, the isolation cover 10 is axially locked and cannot be pulled out upward unless it is unlocked by reverse rotation. This "rotary locking" mechanism makes the fixation of the isolation cover 10 much more secure than simple insertion relying on friction, effectively preventing the accidental falling of the isolation cover 10 due to gravity or vibration during daily handling or inverted storage, and ensuring the stability of the internal structure and the reliability of the sealing system.

[0026] In the third embodiment, based on the first and second embodiments, referring to Figures 2 to 8 Preferably, the connection between the rotating cover 3 and the edge of the sealing cover 2 is a movable clamping connection, allowing the rotating cover 3 to rotate flexibly around the central axis of the sealing cover 2. A flange is provided on the edge of the sealing cover 2, and a corresponding clamping groove is provided on the inner wall of the rotating cover 3, which is the basis for the linkage between the two. This connection method first ensures that the rotating cover 3 and the sealing cover 2 are a whole assembly and cannot be separated during handling or use, avoiding the loss of parts. Secondly, it provides a stable rotating reference for the rotating cover 3, ensuring that the rotating force can be smoothly and accurately transmitted to the positioning protrusions 7, driving them to move within the annular clamping groove 5. This design makes the user feel smooth during rotation and saves labor, which is an important part of achieving "efficient" operation.

[0027] Preferably, the rotating cover 3 comprises a mounting groove 301 opened on the top, a date disc 302 is arranged on the top of the mounting groove 301, a date indicating disc 303 is rotatably arranged in the mounting groove 301, a date indicating groove 304 is opened on one side of the date indicating disc 303, a month disc base 305 is rotatably arranged in the date indicating disc 303, a month disc 306 is arranged on the top of the month disc base 305, and a month pointer 307 is arranged on the top of the date indicating disc 303. The top of the rotating cover 3 integrates a three-layer structure mechanical date indicator, and the user can visually set the storage month and date before sealing the food, and the date will be permanently and clearly displayed on the top of the cover, realizing the integrated operation of sealing and date recording. In the mounting groove 301 on the top of the rotating cover 3, the date disc 302 printed with numbers 1-31 is fixed as the background of date display, the date indicating disc 303 is rotatably arranged in the mounting groove 301, the date indicating groove 304 opened on the date indicating disc 303 is used to frame the specific number on the date disc 302, and the month disc base 305 with a smaller size is independently rotatable in the date indicating disc 303, the month disc 306 printed with numbers 1-12 is fixed on the top of the month disc base 305, and the month pointer 307 fixed on the top of the date indicating disc 303 points to the specific month on the month disc 306. After the user completes the vacuum sealing, the date recording can be immediately performed. When operating, the month disc base 305 in the center is first rotated to drive the month disc 306 to rotate, so that the month pointer 307 points to the corresponding current month on the date disc 302, and then the date indicating disc 303 in the outer circle is independently rotated, so that the date indicating groove 304 on the side of the date indicating disc 303 is aligned with the specific date number on the date disc 302. The double-layer nested rotating structure makes the adjustment of the month and the date not interfere with each other, and the operation is intuitive and convenient. Through the design, the user can clearly record the date of each storage, effectively manage the shelf life of the goods, and avoid waste caused by forgetting.

[0028] When in use, the working principle of the present application is as follows: Preparation and pressing: the user places the sealing cover assembly on the tank opening, positions the positioning convex point 7 to be aligned with the insertion inclined groove 6, and presses downward the rotating cover 3, so that the positioning convex point 7 slides downward along the insertion inclined groove 6, drives the sealing cover 2 to move downward as a whole, and makes the sealing sheet 4 preliminarily contact with the inner wall of the tank body. Rotation and vacuumizing: the user continues to rotate the rotating cover 3, at this time, the positioning convex point 7 enters the spiral annular clamping groove 5, because the path of the annular clamping groove 5 is accompanied by a decrease in height at the same time of rotation, the movement of the positioning convex point 7 is constrained, so that the rotating torque of the rotating cover 3 is converted into a continuous linear pulling force acting on the sealing cover 2, which strongly compresses the sealing sheet 4 to form a tight radial seal with the tank wall. In this process, the air in the tank is compressed and efficiently discharged out of the tank through the air hole 11 of the isolation cover 10 and the exhaust pipe 9. Locking and air-tightness: when the rotary cover 3 is rotated to the end of the annular clamping groove 5, the movement is terminated, at this time, the sealing cover 2 has been pulled to the lowest position, the sealing sheet 4 reaches the maximum compression amount, the sealing performance is the strongest, at the same time, the insertion column 8 fixed at the bottom of the rotary cover 3 is just fully inserted and fits in the air exhaust pipe 9, completely cutting off the air flow channel between the inside and outside, the negative pressure state is formed in the tank due to the air exhaust, and is reliably locked; Opening cover process: the user reversely rotates the rotary cover 3, the positioning convex point 7 moves reversely along the annular clamping groove 5, the sealing cover 2 is released, bounces up a little, the insertion column 8 is separated from the air exhaust pipe 9, the external air enters the tank, the internal and external pressure is balanced, the extrusion force of the sealing sheet 4 disappears, and the whole cover body can be easily taken off.

[0029] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.

Claims

1. A rotary vacuum-sealed tank, characterized by, The utility model provides a kind of container, including jar body (1), the inside of jar body (1) is provided with sealing cover (2), the outside of sealing cover (2) is rotatably provided with rotary cover (3), the circumference of sealing cover (2) is provided with sealing sheet slot, and the sealing sheet slot is provided with sealing sheet (4), the sealing sheet (4) is tightly attached with jar body (1) inner wall, the two sides of sealing cover (2) are provided with annular clamping groove (5) in inclined direction, the top of annular clamping groove (5) is communicated with insertion inclined groove (6), the inner wall of rotary cover (3) is provided with positioning convex point (7) matched with annular clamping groove (5) and insertion inclined groove (6) on both sides, the bottom of rotary cover (3) is fixedly connected with insertion column (8), the inside of sealing cover (2) is communicated with exhaust pipe (9), the bottom of sealing cover (2) is installed with isolation cover (10), the top of rotary cover (3) is provided with handle (15).

2. A rotary vacuum-sealed tank according to claim 1, characterized in that: The exhaust pipe (9) is arranged at the center of the rotary cover (3), the aperture of the exhaust pipe (9) is 8mm, and the diameter of the insertion column (8) is in interference fit with the aperture of the exhaust pipe (9).

3. A rotary vacuum-sealed tank according to claim 1, characterized in that: The jar body (1) is made of high borosilicate glass, and the sealing sheet (4) and the insertion column (8) are made of food-grade silica gel.

4. A rotary vacuum-sealed tank according to claim 1, characterized in that: The bottom of the isolation cover (10) is provided with a plurality of air holes (11), and the air holes (11) are evenly distributed on the bottom of the isolation cover (10).

5. A rotary vacuum-sealed tank according to claim 1, characterized in that: The bottom of the sealing cover (2) is provided with an isolation cover mounting groove (12), and the outer side of the isolation cover (10) is inserted into the inner wall of the isolation cover mounting groove (12).

6. A rotary vacuum-sealed tank according to claim 5, characterized in that: The inner wall of the isolation cover mounting groove (12) is provided with L-shaped clamping grooves (13) on both sides, and the inner circle of the isolation cover (10) is fixedly connected with a pair of cylindrical clamping blocks (14) matched with the L-shaped clamping grooves (13).

7. A rotary vacuum-sealed tank according to claim 1, characterized in that: The rotary cover (3) is movably connected with the edge of the sealing cover (2), so that the rotary cover (3) can rotate flexibly around the central axis of the sealing cover (2).

8. A rotary vacuum-sealed tank according to claim 7, characterized in that: The rotary cover (3) includes a mounting groove (301) formed on the top, a date disc (302) is arranged on the top of the mounting groove (301), a date indicating disc (303) is rotatably arranged in the mounting groove (301), a date indicating groove (304) is formed on one side of the date indicating disc (303), a month disc base (305) is rotatably arranged in the date indicating disc (303), a month disc (306) is arranged on the top of the month disc base (305), and a month pointer (307) is arranged on the top of the date indicating disc (303).

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