TWI688532B - Moisture-proof preservation tank - Google Patents

Abstract

This creation includes an inner tank, an outer tank, a first check valve and a second check valve, wherein the inner tank has a storage space, and the outer tank has a sliding variable for the inner tank to slide into Space, the inner tank is slidably arranged on the sliding variable space, and the outer tank has an air flow channel that allows the sliding variable space to communicate with the outside world, and the inner tank has the storage space to communicate with the sliding variable space An airflow hole, and the first check valve is disposed in the airflow hole and the direction of travel is toward the sliding variable space, and the second check valve is disposed in the airflow channel and the direction of travel is toward the outside; accordingly, the storage space After storing items, as long as the outer tank slides outward relative to the inner tank, a negative pressure environment is formed in the sliding variable space, and the air in the storage space is sucked out, and then the outer tank is opposed to the inner tank Sliding inwards allows air to escape to the outside world, reducing the possibility of the item getting wet and extending the shelf life.

Description

Moisture-proof preservation tank

This creation is about preservation tanks, especially about the moisture-proof structure of preservation tanks.

The storage tank can be filled with various items, such as food, tea, coffee beans, etc. that need to be kept dry. The traditional storage tank only has an airtight effect, which is to prevent the outside air from entering the storage tank to prevent the items from absorbing the air The moisture of the items causes the items to get wet. However, during each opening of the storage tank, the items will contact the new outside air and absorb the new moisture. Therefore, after repeatedly opening and closing the storage tank, the items in the storage tank will still There is a possibility of getting wet.

In order to reduce the moisture absorbed by the items in the storage tank, it has been known that people have installed a one-way air valve on the tank body or lid of the storage tank, and then use the vacuum device, after closing the storage tank, use the air extraction device to extract The air in the storage tank makes the storage tank assume a negative pressure state, which can effectively reduce the amount of air contacted by the items in the storage tank, thereby preventing the items from being damp.

In order to prevent users from finding vacuuming devices such as vacuum cleaners or suction sticks, such as US Patent No. 5,803,282 "VACUUM INDICATOR FOR A BOTTLE", which discloses an evacuable storage tank, storage tank An air extraction part is directly designed on the bottle cap, so that the user can use the air extraction part for air extraction to extract the air in the storage tank.

However, in this conventional design structure, the exhaust member is often improperly used or damaged by external forces, and the structure of its outer cover is quite complicated, so it will have a high defect rate and high assembly cost The problem.

The main purpose of this creation is to expose a moisture-proof preservation tank that is easy to manufacture and assemble and easy to use.

Based on the above purpose, the present invention is a moisture-proof preservation tank, which includes an inner tank, an outer tank, a first check valve and a second check valve, wherein the inner tank has a storage space, and the outer tank has A sliding variable space into which the inner tank slides, the inner tank slidingly disposed on the sliding variable space, and the outer tank has an air flow channel that allows the sliding variable space to communicate with the outside world, and the inner tank has The storage space communicates with an airflow hole of the sliding variable space, the first check valve is disposed on the airflow hole and closes the airflow hole, and the direction of travel is toward the sliding variable space, and the second check valve is provided The airflow channel is closed on the airflow channel, and the direction of travel is toward the outside.

According to this, the storage space can be used to store items, and after closing, as long as the outer tank is gripped and slid outward relative to the inner tank, the actual volume of the sliding variable space will become larger, and the sliding can be The variable space forms a negative pressure environment to suck out the air in the storage space, and then allow the outer tank to slide inward relative to the liner to compress the actual volume of the sliding variable space, and when the sliding variable space When the actual volume becomes smaller and the pressure rises, the air in the sliding variable space will be discharged to the outside, so it will slide repeatedly, the actual volume of the sliding variable space will repeatedly increase and decrease, and The air in the storage space is gradually discharged. The structure is simple and the operation mode is similar to the pump. It is easy to manufacture and assemble and is not easy to damage, which can meet the needs of manufacturing and use.

The detailed content and technical description of this creation are now further explained with examples, but it should be understood that these examples are for illustrative purposes only and should not be construed as limitations on the implementation of the creation.

Please refer to "Picture 1", "Picture 2" and "Picture 3", this creation is a moisture-proof preservation tank, which includes an inner tank 10, an outer tank 20, a first check valve 30 and a second Check valve 40, wherein the liner 10 has a storage space 11, and the present invention may further include a cover 50 and a silicone ring 60, the liner 10 has a bottle mouth end 12, the cover 50 is separated by The silicone ring 60 is locked on the bottle end 12 to close the bottle end 12.

The outer tank 20 has a sliding variable space 21 into which the inner tank 10 slides, and after the inner tank 10 slides into the sliding variable space 21, the outer tank 20 can be at the opening of the sliding variable space 21 A snap ring 70 is locked. The snap ring 70 locks the liner 10 out of the sliding variable space 21 to prevent the liner 10 from escaping from the outer tank 20. In addition, the outer surface of the liner 10 has at least one rib 15. The snap ring 70 has at least one snap groove 71 for sliding insertion of the ribs 15. By snapping the ribs 15 and the snap grooves 71, the snap ring 70 and the liner can be made There is no rotation between 10, that is, the snap ring 70 and the liner 10 are rotated coaxially, so that the user can conveniently open the cover 50.

In addition, the inner tank 10 is slidably disposed on the sliding variable space 21, and the outer tank 20 has an air flow channel 80 that allows the sliding variable space 21 to communicate with the outside world. The air flow channel 80 can be directly formed on the outer tank 20. On the wall surface, or as shown in FIG. 3, the air flow passage 80 is formed between the inner tank 10 and the outer tank 20 to allow the sliding variable space 21 to communicate with the outside world, and the second check valve 40 is disposed at The airflow passage 80 is closed to the airflow passage 80 and the direction of travel is toward the outside. If the airflow passage 80 is directly formed on the wall surface of the outer tank 20, the second check valve 40 may use a general check valve ; If the air flow channel 80 is formed between the inner tank 10 and the outer tank 20, in actual structure, the second check valve 40 has a silicone ring 41 and a ring groove 42, the silicone ring 41 is wound around The ring groove 42 is disposed on the outer side of the liner 10. The height of the silicone ring 41 is slightly higher than the ring groove 42 and both ends press the outer tank 20 and the liner 10, and the At least one notch 421 is provided on the side of the ring groove 42 away from the sliding variable space 21, and when the silicone ring 41 falls to the side without the notches 421, the silicone ring 41 will press against the outer tank 20 and the inner The bladder 10 does not allow air to pass through, forming an airtight structure, and when the silicone ring 41 falls to the side with the notches 421, the silicone ring 41 sinks into the notches 421 and cannot resist the outer can 20, This allows air to pass through.

The liner 10 has an air flow hole 13 for allowing the storage space 11 to communicate with the sliding variable space 21. The first check valve 30 is disposed on the air flow hole 13 and closes the air flow hole 13, and the direction of travel is toward For the sliding variable space 21, the first check valve 30 may be a check valve that normally flows in one direction. A filter 90 covering the airflow hole 13 may be provided at the bottom of the liner 10. The filter 90 may be made of a material such as non-woven fabric, which allows air to pass through, and can avoid items with a small particle size (such as (Shown in FIG. 4A) through the airflow hole 13.

Please also refer to "Figure 4A" and "Figure 4B", the storage space 11 can store items 100 by the user, and after being closed by the cover 50 the storage space 11, the user only needs to hold the The outer tank 20 repeatedly slides relative to the inner tank 10 several times, the actual volume of the sliding variable space 21 will repeatedly increase and decrease, when the actual volume of the sliding variable space 21 becomes larger and the pressure drops ( As shown in FIG. 4A), the air 110 of the storage space 11 will flow into the sliding variable space 21; and when the actual volume of the sliding variable space 21 becomes smaller and the pressure rises (see FIG. 4B), the sliding variable space The air 110 of 21 will be discharged to the outside, so that the air in the storage space 11 can be drawn out.

In addition, in order to reduce the force required by the user to grip the outer tank 20 relative to the inner tank 10 and slide outward, as shown in FIG. 2, the present invention may be on the end of the ring groove 42 away from the notch 421, At least one vent port 422 is formed. When the user grips the outer tank 20 and slides outward relative to the inner tank 10, so that the actual volume of the sliding variable space 21 becomes larger and the pressure drops (see FIG. 4A), the vent The port 422 allows the silicone ring 41 to sink in, and the silicone ring 41 is no longer pressed against the outer tank 20 and the inner tank 10, allowing a little air to enter the sliding variable space 21 from the outside, which can allow the sliding The variable space 21 is maintained in a low-pressure environment, while the pressure of the sliding variable space 21 is not too low, thereby reducing the force required to grip the outer tank 20 to slide.

In addition, please refer to "Figure 5" again, the present invention can also be provided with at least one vent hole 22 on the wall of the outer tank 20. The diameter of the vent holes 22 is quite small, allowing some air to enter from outside The sliding variable space 21 also allows the pressure of the sliding variable space 21 not to be too low, thereby reducing the force required to grasp the sliding movement of the outer tank 20. Moreover, the user can use their fingers to cover the vent holes 22, and control whether to let air enter the sliding variable space 21 from outside to meet the convenience of operation and use; further, the vent holes 22 can also be A choke valve 23 is directly installed respectively, and these choke valves 23 can only allow air with a certain pressure difference to pass through, so the pressure of the sliding variable space 21 can also be prevented from being too low.

As mentioned above, this creation includes at least the following advantages:

1. Its operation mode is similar to the pump, it is not easy to damage, and it can meet the needs of use.

2. Its structure is simple, manufacturing and assembly are easy and the cost is low, which can meet the manufacturing needs.

3. The clamping grooves and the convex ribs are arranged between the snap ring and the liner to allow the snap ring and the liner to rotate coaxially to facilitate opening the cover.

4. Make use of the filter covering the airflow hole, so that the storage space is suitable for storing items of smaller particle size.

5. Through the design of the vent port or vent hole, the force required for the user to grip the outer canister to slide outward relative to the inner tank can be reduced to satisfy the user's habit of repeatedly pulling.

However, the above is only the preferred embodiment of this creation and is not intended to limit the scope of this creation. That is to say, all equal changes and modifications made in accordance with the scope of the patent application for this creation are covered by the scope of the patent for creation.

10: Liner

11: Storage space

12: Bottle end

13: Airflow hole

15: ribs

20: Outer can

21: sliding variable space

22: vent hole

23: Choke valve

30: First check valve

40: Second check valve

41: Silicone ring

42: Ring groove

421: Notch

422: Vent

50: cover

60: Silicone ring

70: snap ring

71: Card slot

80: air flow channel

90: filter

100: Item

110: air

Figure 1, the structure of this creation. Figure 2 is an exploded structural diagram of this creation. Figure 3 is a sectional view of this creative combination. Fig. 4A is a schematic diagram of the sliding variable space enlarged for this creation. Figure 4B is a schematic diagram of sliding variable space reduction for this creation. Figure 5 is a structural diagram of an outer tank for another implementation of this creation.

10: Liner

12: Bottle end

13: Airflow hole

15: ribs

20: Outer can

30: First check valve

40: Second check valve

41: Silicone ring

42: Ring groove

421: Notch

422: Vent

50: cover

60: Silicone ring

70: snap ring

71: Card slot

Claims (6)

A moisture-proof preservation tank, comprising: an inner tank with a storage space; an outer tank with a sliding variable space into which the inner tank slides, the inner tank slidingly arranged on the slide On the variable space, the outer tank has an airflow channel that allows the sliding variable space to communicate with the outside world, and the inner tank has an airflow hole that allows the storage space to communicate with the sliding variable space, and the airflow channel is located in the Between the outer tank and the liner; a first check valve, which is provided on the air flow hole and closes the air flow hole, and the direction of travel is toward the sliding variable space; and a second check A valve, the second check valve is disposed on the air flow channel and closes the air flow channel, and the direction of travel is toward the outside, and the second check valve has a silicone ring and a ring groove, the silicone ring is wound around the ring groove And the ring groove is arranged on the outside of the liner, the height of the silicone ring is slightly higher than the ring groove, and both ends press the outer tank and the liner, and the ring groove is away from a part of the sliding variable space At least one notch is provided on the side, and the end of the ring groove away from the notch forms at least one air vent. The moisture-proof preservation tank as described in item 1 of the patent application scope further includes a cover and a silicone ring. The liner has a bottle mouth end, and the cover is locked to the bottle mouth end via the silicone ring. The moisture-proof preservation tank according to item 1 of the patent application scope, wherein after the inner tank slides into the sliding variable space, the outer tank locks a snap ring at the opening of the sliding variable space, and the snap ring is locked The liner is separated from the sliding variable space. The moisture-proof preservation tank according to item 3 of the patent application scope, wherein the outer surface of the inner tank has at least one convex rib, and the snap ring has at least one snap groove for sliding insertion of the convex ribs. The moisture-proof preservation tank as described in item 1 of the patent application scope, wherein the notches are two and are symmetrically arranged. The moisture-proof preservation tank as described in item 1 of the patent application scope, wherein a filter screen covering the air flow hole is provided at the bottom of the inner tank.

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