CN218288839U - Bottle cap, vacuum liquid storage bottle and vacuum liquid storage device - Google Patents

Abstract

The utility model discloses a bottle cap, which is suitable for being assembled in a bottle. The bottle cap comprises a cap body, an air valve and an actuating piece, wherein the cap body is provided with a joint end for connecting a bottle and forming a joint space, the cap body is also provided with an air flow channel penetrating through the cap body and communicated with the joint space, the air valve is movably arranged in the air flow channel, the air valve at least comprises a first position for closing the air flow channel and a second position for opening the air flow channel relative to the cap body, the air valve is switched from the first position to the second position during air suction, the air valve is switched from the second position to the first position under atmospheric bias after air suction, the actuating piece is arranged on the cap body or the air valve, and the joint space is communicated with the atmospheric environment by the actuating piece under operation. The bottle cap of the utility model has the advantage of convenient vacuum breaking. In addition, the utility model also discloses a vacuum stock solution bottle and vacuum stock solution device.

Description

Bottle cap, vacuum liquid storage bottle and vacuum liquid storage device

Technical Field

The utility model relates to a liquid storage container field especially relates to a bottle lid, vacuum stock solution bottle and vacuum stock solution device.

Background

The breast pump is almost one of necessary mother and infant articles for a newborn mother at present, the breast pump is used for sucking out milk in special occasions, the milk expansion can be avoided, and the sucked-out milk is stored by using a feeding bottle and a milk bag and can be drunk by the baby when needed. It is found in everyday use that the milk drawn off does not always fill the bottle properly, and that there is a large space left in the bottle, in which air located in the space will accelerate the decomposition of the proteins in the milk, and bacteria will also deteriorate the milk. Therefore, some manufacturers have developed a vacuum milk bottle, and after the milk bottle is filled with the milk, the air in the milk bottle can be pumped out to realize vacuum storage. However, the vacuum breaking operation of the vacuum milk storage bottle is inconvenient, the bottle cap is difficult to remove, and the use experience is not good.

Therefore, a bottle cap, a vacuum liquid storage bottle and a vacuum liquid storage device thereof with simple vacuum breaking operation are needed to overcome the above defects.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a broken vacuum easy and simple to handle's bottle lid.

Another object of the present invention is to provide a vacuum liquid storage bottle with simple vacuum breaking operation.

It is still another object of the present invention to provide a vacuum storage device that is easy and convenient to operate in vacuum breaking.

In order to achieve the above object, the bottle cap of the present invention is suitable for being assembled to a bottle. The bottle cap comprises a cap body, an air valve and an actuating piece, wherein the cap body is provided with a joint end for connecting a bottle and forming a joint space, the cap body is also provided with an air flow channel penetrating through the cap body and communicated with the joint space, the air valve is movably arranged in the air flow channel, the air valve at least comprises a first position for closing the air flow channel and a second position for opening the air flow channel relative to the cap body, the air valve is switched from the first position to the second position during air suction, the air valve is switched from the second position to the first position under atmospheric bias after air suction, the actuating piece is arranged on the cap body or the air valve, and the joint space is communicated with the atmospheric environment by the actuating piece under operation.

Preferably, the air valve includes a blocking structure, the cover body forms a mating structure in the air flow channel, the blocking structure abuts against the mating structure to close the air flow channel when the air valve is at the first position, and the blocking structure is away from the mating structure to open the air flow channel when the air valve is at the second position.

Preferably, the gas valve further includes a supporting member, the blocking structure is sleeved at the first end of the supporting member, the second end of the supporting member penetrates through the cover body, the matching structure has a gas flow channel, the cover body is provided with a gas hole communicated with the gas flow channel and the joint space, the matching structure surrounds the gas hole, the gas flow channel is communicated with the gas flow channel, and the blocking structure movably penetrates through the gas flow channel.

Preferably, the adapting structure is a cylindrical structure, a gas flow channel is formed in an inner cavity of the cylindrical structure, the blocking structure is arranged in a conical structure, and a small-diameter end of the blocking structure movably penetrates through the gas flow channel.

Preferably, a pressure relief channel penetrating through two ends of the support is formed in the support, the actuating member is movably mounted in the pressure relief channel, the actuating member closes the pressure relief channel, and the actuating member opens the pressure relief channel under operation.

Preferably, the pressure relief channel and the airflow channel extend in the same direction, the first end of the actuating member penetrates through the first end of the supporting member, the first end of the actuating member is provided with a sealing member, and the sealing member constantly has a tendency of abutting against the first end of the supporting member to close the pressure relief channel.

Preferably, the second end of the actuating member penetrates through the second end of the supporting member to form an operating portion, an elastic member is installed between the supporting member and the operating portion, and the elastic member constantly has a tendency of driving the operating portion to move away from the supporting member.

Preferably, the cover body comprises a top cover, a bottom cover and a plurality of screw caps arranged between the top cover and the bottom cover, the screw caps are rotatably arranged on the bottom cover, the top cover is provided with an observation window, a plurality of digital symbols are formed on the top of the screw caps, and the digital symbols exposed out of the observation window form a group of time record symbol groups.

In order to achieve the above another object, the vacuum liquid storage bottle of the present invention comprises a bottle and the above bottle cap. The bottle is detachably mounted at the joint end, and the inner cavity of the bottle is communicated with the joint space.

In order to achieve the above-mentioned another object, the present invention provides a vacuum liquid storage device including an air extractor and the above-mentioned vacuum liquid storage bottle. The air inlet end of the air extractor is communicated with the airflow channel, and the air extractor is used for pumping out air.

Compared with the prior art, the utility model discloses a bottle cap includes the lid, the pneumatic valve with move the movable part, the lid has a joint end that supplies the bottle to connect and be formed with joint space, the lid has still been seted up one and has been run through the lid and with the air current passageway of joint space intercommunication, the pneumatic valve is movably installed in air current passageway, the relative lid of pneumatic valve has a first position of closing air current passageway and a second position of opening air current passageway at least, the pneumatic valve switches to the second position by the first position when bleeding, the pneumatic valve receives atmospheric bias and switches to the first position by the second position after bleeding, move the movable part and install in lid or pneumatic valve, the action under the operation makes joint space and atmospheric environment be linked together. The negative pressure or vacuum environment of the inner cavity of the bottle can be broken after the actuating part is operated, so that the operation is convenient and fast.

Understandably, because the utility model discloses a vacuum liquid storage bottle includes above-mentioned bottle lid, consequently its corresponding utensil can conveniently realize breaking the advantage of the negative pressure or the vacuum environment of bottle inner chamber.

Understandably, because the utility model discloses a vacuum stock solution device includes above-mentioned bottle lid, also the corresponding negative pressure or the vacuum environment's that can conveniently realize abolishing the bottle inner chamber advantage that has.

Drawings

FIG. 1 is a perspective view of a vacuum reservoir using a first embodiment of a fitting.

Fig. 2 is a perspective view of the vacuum reservoir of the first embodiment using an electric air pump.

FIG. 3 is a front cross-sectional view of the vacuum reservoir with the air valve in a first position after the air evacuation device is concealed.

FIG. 4 is a front cross-sectional view of the air valve in a second position during evacuation of the vacuum reservoir shown in FIG. 3.

Fig. 5 is a cross-sectional elevation view of the vacuum reservoir shown in fig. 3 after the actuator is depressed.

Figure 6a is an exploded view of the bottle cap and its gas valve.

Fig. 6b is a top view of the closure.

Fig. 6c is a perspective cross-sectional view of the closure.

Figure 7a is an elevation view of the air valve and actuator thereon.

Fig. 7b is an exploded view of the air valve and actuator.

FIG. 8a is a front cross-sectional view of a vacuum reservoir of a second embodiment.

FIG. 8b is a front cross-sectional view of a vacuum reservoir using a second embodiment of a fitting.

FIG. 9a is a front cross-sectional view of a vacuum reservoir using a third embodiment of a fitting.

Fig. 9b is a front cross-sectional view of a third embodiment of an evacuated reservoir device.

Fig. 10a is a front cross-sectional view of a vacuum reservoir using another embodiment of a fitting.

Fig. 10b is a front cross-sectional view of an alternative embodiment of an evacuated reservoir device.

Detailed Description

In order to explain technical contents and structural features of the present invention in detail, the following description is made with reference to the embodiments and the accompanying drawings.

As shown in fig. 1, fig. 2 and fig. 3, the vacuum liquid storage apparatus 1000 of the present invention includes a vacuum liquid storage bottle 100 and an air extractor. The air extracting device is a device for extracting air, such as an air pump, an air extracting cylinder and the like. The air in the vacuum liquid storage bottle 100 is pumped out by the air pumping device, so that the liquid stored in the vacuum liquid storage bottle 100 is in a vacuum state or a negative pressure state, the pollution of air to the liquid is avoided, and the liquid is prevented from being polluted and deteriorated. The vacuum liquid storage bottle 100 of the utility model is used for storing milk, such as breast milk. Of course, other liquids such as milk, juice, tea, coffee, soup, etc. may be stored as needed. Wherein, the utility model discloses a vacuum liquid storage bottle 100 includes bottle lid 10 and bottle 20. The bottle 20 is used for storing the above-mentioned liquid, and the cap 10 is fitted to the open end of the bottle 20 to achieve sealing of the bottle 20.

As shown in fig. 2, the air-extracting device is an electric air pump 200, when in use, the air pump 200 is mounted on the bottle cap 10, an air inlet end of the air pump is communicated with the air flow passage 112 (described in detail below), and when in use, the air pump 200 extracts air to extract air from the vacuum liquid storage bottle 100.

As shown in fig. 1, the air-extracting device can also be applied to other air-extracting devices, and at this time, the air-extracting device does not need to be installed on the bottle cap 10, and the connector 210 can be installed in the air flow channel 112, and the connector 210 is communicated with the air flow channel 112 to realize the butt joint of the air-extracting device and the vacuum liquid bottle 100, and at this time, air extraction can be performed.

As shown in fig. 1, 2, 3, 4, 6a, 6b and 6 c. As for the bottle cap 10, the bottle cap 10 of the present invention includes a cap body 11, an air valve 12, and an actuating member 13. The cover 11 has an engagement end (not shown) for the bottle 20 to be connected and defining an engagement space 111. The bottle 20 is detachably mounted to the engaging end and the inner cavity of the bottle 20 communicates with the engaging space 111. The cover 11 further defines an airflow channel 112 penetrating the cover 11 and communicating with the joint space 111. The air valve 12 is movably mounted on the air flow passage 112, and the air valve 12 has at least a first position (shown in fig. 3) for closing the air flow passage 112 and a second position (shown in fig. 4) for opening the air flow passage 112 relative to the cover 11. When the air valve 12 is switched from the first position to the second position during air suction, the air valve 12 opens the air flow passage 112, and the air inlet end of the air suction device is connected to the cavity of the bottle 20 to suck air from the cavity of the bottle 20, and the air in the cavity of the bottle 20 flows out in the direction of the solid arrow in fig. 4. The valve 12 is biased by the atmosphere after being evacuated and switches from the second position to the first position. It will be readily appreciated that when air is drawn from the interior of the bottle 20, the interior of the bottle 20 creates a negative pressure environment, and when air is removed, the atmospheric environment biases the air valve 12 to move the air valve 12 from the second position to the first position, thereby closing the air flow passage 112 and maintaining the interior of the bottle 20 in a stable vacuum environment.

As shown in fig. 3, 4, 7a and 7b, in the first embodiment of the present invention, the actuating member 13 is installed on the air valve 12, and the actuating member 13 under operation makes the joint space 111 communicate with the atmosphere, so as to break the negative pressure or vacuum environment in the inner cavity of the bottle 20, and the pressure in the inner cavity of the bottle 20 is equal to the atmosphere, so that the bottle cap 10 can be conveniently removed. It should be noted that since actuator 13 is mounted on valve 12, before actuator 13 is operated, electric air pump 200 or connector 210 must be removed, and air flow passage 112 is open to the atmosphere.

The gas valve 12 includes a blocking structure 121, the cover 11 forms a mating structure 113 in the gas flow passage 112, the blocking structure 121 abuts against the mating structure 113 to close the gas flow passage 112 when the gas valve 12 is in the first position, and the blocking structure 121 is away from the mating structure 113 to open the gas flow passage 112 when the gas valve 12 is in the second position. The mating structure 113 provides for positioning of the valve 12 in the first position, and facilitates the opening or closing of the air flow passage 112.

As shown in fig. 3, 4, 5, 7a and 7b, the structure of the bottle cap 10 according to the first embodiment of the present invention will be described in further detail below. For the gas valve 12, the gas valve 12 further includes a supporting member 122, the blocking structure 121 is sleeved at a first end of the supporting member 122, a second end of the supporting member 122 penetrates through the cover 11, the adapting structure 113 has a gas flow passage 114, the cover 11 is provided with a gas hole 115 communicating with the gas flow passage 114 and the joint space 111, the first end of the adapting structure 113 surrounds the gas hole 115, the gas flow passage 114 is communicated with the gas flow passage 112, and the blocking structure 121 movably penetrates through the gas flow passage 114. At this time, the gas flow channel 114 can be closed directly, and when the blocking structure 121 penetrates into the gas flow channel 114 and abuts against the mating structure 113, the gas flow channel 114 can be effectively closed.

Further, the adapting structure 113 is a cylindrical structure, an inner cavity of the cylindrical structure forms a gas flow channel 114, the blocking structure 121 is arranged in a tapered structure, and a small-diameter end of the blocking structure 121 movably penetrates through the gas flow channel 114. The plugging structure 121 that cylindric structure and taper were arranged is convenient well, stabilizes the butt, and is sealed effectual, and plugging structure 121's major diameter end is outside gas flow channel 114 moreover, and end surface area is big, has bigger lifting surface area, makes things convenient for atmospheric pressure to promote plugging structure 121 and moves.

As shown in fig. 3, 4 and 5, a pressure relief passage 1221 penetrating through two ends of the support 122 is formed in the support 122, the actuating member 13 is movably installed in the pressure relief passage 1221, the actuating member 13 closes the pressure relief passage 1221, and the actuating member 13 opens the pressure relief passage 1221. Actuator 13 closes pressure relief passage 1221 to prevent air leakage and prevent atmosphere from flowing into airflow passage 112 or airflow passage 114 through pressure relief passage 1221. When the actuator 13 is operated, the pressure relief passage 1221 is opened, and the atmospheric air flows into the air flow passage 112 or the air flow passage 114 through the pressure relief passage 1221, and then flows into the joint space 111 through the air hole 115, so as to break the negative pressure or vacuum environment in the inner cavity of the bottle 20. The actuator 13 is disposed in the support 122, so that the structure is compact, and the actuator 13 is supported by the support 122, so that the structure is stable.

As shown in fig. 3, 4, 5, 7a and 7 b. Further, the pressure relief passage 1221 extends in the same direction as the airflow passage 112, the first end of the actuating member 13 penetrates through the first end of the supporting member 122, the first end of the actuating member 13 is mounted with a sealing member 131, and the sealing member 131 always has a tendency to abut against the first end of the supporting member 122 to close the pressure relief passage 1221. Normally, the actuator 13 seals the pressure relief passage 1221 by the sealing member 131, and when the actuator 13 is operated to move the sealing member 131 away from the first end of the support 122, the pressure relief passage 1221 is opened. The second end of the actuating member 13 penetrates the second end of the supporting member 122 to form an operating portion 132, an elastic member 133 is installed between the supporting member 122 and the operating portion 132, and the elastic member 133 has a tendency to drive the operating portion 132 away from the supporting member 122. Preferably, the sealing member 131 is a rubber ring, but is not limited thereto.

Since the operating portion 132 penetrates through the second end of the supporting member 122 and the second end of the supporting member 122 penetrates through the cover 11, the operating portion 132 correspondingly penetrates through the cover 11, which facilitates the operation. Preferably, the operating portion 132 is disposed orthogonally to the actuator 13 to form a "T" shaped structure that facilitates operation of the actuator 13. In particular, but not limited to, when the valve 12 is in the first position, the first end of the actuator 13 penetrates the air hole 115. The operation of the operation unit 132 is preferably performed by pressing, but is not limited thereto.

The elastic member 133 pushes the actuating member 13, so that the sealing member 131 tightly abuts against the second end of the supporting member 122, thereby improving the sealing performance. The operated actuator 13 can be automatically reset under the urging of the elastic member 133. It can be seen that the sealing member 131 is away from the first end of the supporting member 122 by pressing the operating portion 132, the pressure relief passage 1221 is opened, and the actuating member 13 automatically resets after releasing the hand. Preferably, the elastic member 133 is a spring, but is not limited thereto.

As shown in fig. 3, 4, 5, 6a, 6b, 6c, 7a and 7b, the blocking structure 121 is made of silicone to improve good sealing performance. The supporting member 122 is in a stepped shaft shape, and a second end thereof is provided with a groove opened to the outside, and the elastic member 133 is disposed in the groove to improve the mounting stability of the elastic member 133. In addition, to facilitate the docking of the electric air pump 200 or the connector 210 to the cover 11, the cover 11 is provided with a docking member 30 at the air flow passage 112. In order to improve the installation stability of the air valve 12, the cover 11 further includes a receiving member 120 disposed in the air flow channel 112, the air valve 12 passes through the receiving member 120, and the second end of the supporting member 122 and the second end of the actuating member 13 both pass through the receiving member 120 and then pass through the cover 11.

As shown in fig. 1 to 6c, the cover 11 includes a top cover 116, a bottom cover 117, and a plurality of screw caps 118 disposed between the top cover 116 and the bottom cover 117. The screw cap 118 is rotatably mounted to the bottom cap 117, and the top cap 116 is mounted to the bottom cap 117. The top cover 116 is opened with a viewing window 119. A plurality of digital symbols 1181 are formed on the top of the screw cover 118, and the digital symbol structure 1181 exposed out of the observation window 119 forms a group of time record symbol groups.

Examples are as follows: the number of the screw caps 118 is 3 (but not limited to), the first screw cap 118 is provided with the number symbol 1181 of "day", namely, 1 to 31, the second screw cap 118 is provided with the number symbol 1181 of "hour", namely, 1 to 12, the third screw cap 118 is provided with the number symbol 1181 of "minute", namely, 1 to 60, and the number symbols 1181 on each screw cap 118 are arranged at equal intervals and are encircled into a circle. If it is desired to describe that the storage time of the liquid (e.g., emulsion) is 09 minutes at 18 days and 35 minutes, 3 screw caps 118 are respectively rotated to make the number symbol "18" on the first screw cap 118 fall on the observation window 119, make the number symbol "09" on the second screw cap 118 fall on the observation window 119, and make the number symbol "35" on the third screw cap 118 fall on the observation window 119, as shown in fig. 6 b.

To prevent the rotated cap 118 from being displaced and to remind the user to rotate the cap in place, one of the two adjacent caps 118 is formed with a locking post 1182, and the other of the two adjacent caps 118 is formed with a plurality of locking holes 1183. When the screw caps 118 are rotated to the right position, the clipping columns 1182 on the screw caps 118 are clipped into the clipping holes 1183 of the other adjacent screw caps 118, so that the positioning of the two adjacent screw caps 118 is realized. Of course, it will be appreciated that a plurality of snap apertures 1183 are also formed in the bottom cover 117 to provide for the positioning of snap posts 1182 of the screw cap 118 adjacent thereto.

The following is a brief introduction of the utility model discloses the use of the vacuum liquid storage device 1000 of the first embodiment: after filling the bottle 20 with the liquid, the bottle cap 10 is attached to the bottle 20. Subsequently, an air-extracting device is attached, and the electric air pump 200 will be described as an example. When the electric air pump 200 is started, the electric air pump 200 pumps air to drive the air valve 12 to move from the first position shown in fig. 3 to the second position shown in fig. 4, the air flow channel 114 is opened, the air flow channel 112 is correspondingly opened, the air in the inner cavity of the bottle 20 flows to the air flow channel 114 through the air hole 115 and then flows to the air flow channel 112, that is, flows along the solid arrow direction shown in fig. 3, the air in the inner cavity of the bottle 20 is pumped out to form a vacuum or negative pressure environment, the electric air pump is turned off after a certain time, and the electric air pump is taken down. The air flow passage 112 is now open to the atmosphere, and since the interior of the bottle 20 is in a negative pressure environment, the atmospheric pressure pushes the air valve 12 from the second position to the first position, closing the air flow passage 114, and maintaining the interior of the bottle 20 in a negative pressure environment.

When the bottle cap 10 is to be removed, a force F is applied in the direction of the large arrow in fig. 5, the elastic member 133 is compressed, the sealing member 131 is far away from the first end of the supporting member 122, the pressure relief passage 1221 is opened, and air in the atmosphere flows into the air flow passage 114 through the pressure relief passage 1221 and flows into the inner cavity of the bottle 20 through the air hole 115, so as to break the vacuum environment in the inner cavity of the bottle 20, and then the bottle cap 10 can be removed.

Fig. 8a and 8b show the structure of the bottle cap according to the second embodiment, which is largely the same as the bottle cap 10 according to the first embodiment, except that the structure and arrangement of the air valve and the actuator are different.

Specifically, the air valve 12k of the present embodiment is a single-piece structure, a circle of groove 121k is formed on the outer side of the air valve 12k, and the air valve 12k is clamped on the bottom cover 117 by the groove 121 k. The gas valve 12k forms a blocking structure 122k at the two ends of the recess 121k and a blocking end 123k at the junction space 111, respectively, and the portion of the bottom cover 117 facing the blocking structure 122k forms a mating structure 113k, and the blocking structure 122k abuts against the mating structure 113k in a planar manner when the gas valve 12k is in the first position (in this state, as shown in fig. 8 a), so as to seal the gas flow passage 112. When the valve 12k is in the second position, the blocking end 123k presses against the bottom cover 117 (this state is shown in fig. 8 b), and the blocking structure 122k is away from the mating structure 113k, and the air flow passage 112 is open. To facilitate venting, the bottom cover 117 has a plurality of conducting grooves 1171k facing the joint space 111 and communicating with the air holes 115.

Furthermore, the actuating member 13k is linked with the air valve 12k, the actuating member 13k is disposed in the air flow channel 112, and the pushed actuating member 13k drives the air valve 12k to switch from the first position to the second position, so that the vacuum breaking operation can be performed. The moving member 13k is linked with the air valve 12k by a resilient piece 14k, the bottom cover 117 protrudes toward the airflow channel 112 to form a supporting seat 15k, the moving member 13k and the air valve 12k are respectively installed at two ends of the resilient piece 14k, and the middle portion of the resilient piece 14k is installed on the supporting seat 15k.

The use of the vacuum reservoir of the second embodiment is briefly described as follows: after filling the bottle 20 with the liquid, the bottle cap 10 is attached to the bottle 20. Subsequently, the connector 210 is attached, the air extractor extracts air, the air valve 12k is sucked out, the air valve 12k is switched from the first position to the second position, the air flow channel 112 is opened, the air in the inner cavity of the bottle 20 flows to the air flow channel 112 through the air hole 115, i.e. flows along the solid arrow in fig. 8b, the air in the inner cavity of the bottle 20 is extracted, a vacuum or negative pressure environment is formed, the air extractor is closed after a certain time, and the connector 210 is removed. At this time, the air flow channel 112 is connected to the atmosphere, since the inner cavity of the bottle 20 is in a negative pressure environment, the air flow channel 112 is connected to the atmosphere, and since the inner cavity of the bottle 20 is in a negative pressure environment, the air pressure pushes the air valve 12k to move from the second position to the first position, the blocking structure 122k abuts against the mating structure 113k, and the air flow channel 112 is closed, so that the inner cavity of the bottle 20 is kept in a negative pressure environment, which is shown in fig. 8 a.

When the bottle cap 10 needs to be removed, a force F is applied to the actuator 13k in the direction of the large arrow in fig. 8a to move the air valve 12k from the first position to the second position, the air flow channel 112 is opened, air in the atmospheric environment flows into the inner cavity of the bottle 20 through the air hole 115, the vacuum environment in the inner cavity of the bottle 20 is broken, and then the bottle cap 10 can be removed.

Fig. 9a and 9b show the structure of the closure according to the third embodiment, which is largely identical to the closure 10 according to the second embodiment, except for the structure and arrangement of the air valve and the actuator.

Specifically, the air valve 12m of the present embodiment is a single-piece structure, a circle of groove 121m is formed on the outer side of the air valve 12m, and the air valve 12m is clamped to the bottom cover 117 by the groove 121 m. The air valve 12m forms a blocking structure 122m at the two ends of the recess 121m and a blocking end 123m at the joint space 111, respectively, and the portion of the bottom cover 117 facing the blocking structure 122m forms a mating structure 113m, and the blocking structure 122m abuts against the mating structure 113m in a plane to seal (in this state, as shown in fig. 9 b) when the air valve 12m is in the first position, so as to close the air flow passage 112.

When the air valve 12m is in the second position, the blocking end 123m presses against the bottom cover 117 (this state is shown in fig. 9 a), and the blocking structure 122m is away from the mating structure 113m, and the air flow passage 112 is open. To facilitate venting, the bottom cover 117 is formed with a plurality of conducting grooves 1171m facing the joint space 111 and communicating with the vent holes 115.

The actuating member 13m is not linked with the air valve 12m, the actuating member 13m is independently inserted into the flow channel 110m of the cover 10, a sealing member 131m is installed at one end of the actuating member 13m located in the joint space 111, an elastic member 133m is installed between the actuating member 13m and the bottom cover 117, and in a normal state, the elastic member 133m tightly pushes the actuating member 13m to make the sealing member 131m abut against the bottom cover 117 to close the flow channel 110 m. When the push actuator 13m is pressed, the flow channel 110m is opened, and the vacuum is broken.

The use of the vacuum reservoir of the third embodiment is briefly described as follows: after filling the bottle 20 with the liquid, the bottle cap 10 is attached to the bottle 20. Subsequently, the connector 210 is installed, the air extractor extracts air, the air valve 12m is sucked out, the air valve 12m is switched from the first position to the second position, the air flow channel 112 is opened, the air in the inner cavity of the bottle 20 flows to the air flow channel 112 through the air hole 115, i.e. flows along the solid arrow direction in fig. 9a, the air in the inner cavity of the bottle 20 is extracted, a vacuum or negative pressure environment is formed, the air extractor is closed after a certain time, and the connector 210 is removed. At this time, the air flow channel 112 is connected to the atmosphere, since the inner cavity of the bottle 20 is in a negative pressure environment, the air pressure pushes the air valve 12m to move from the second position to the first position, the blocking structure 122m abuts against the adapting structure 113m, and the air flow channel 112 is closed, so that the inner cavity of the bottle 20 maintains a negative pressure environment, which is shown in fig. 9 b.

When it is desired to remove closure 10, closure 10 is removed by applying a force F to actuator 13m in the direction of the large arrow in figure 9b, opening flow path 110m and breaking the vacuum in the interior of bottle 20.

The vacuum reservoir 1000 described below is not an embodiment that is parallel to the previous embodiments, but its principle is similar to the previous embodiments, and the difference is mainly that it does not have a separate actuator, but uses another way to break the vacuum.

The method comprises the following specific steps: the air valve 12n of the present embodiment is a single-piece structure, a circle of groove 121n is formed on the outer side of the air valve 12n, and the air valve 12n is clamped on the bottom cover 117 by the groove 121 n. The air valve 12n forms a blocking structure 122n at the two ends of the recess 121n and a blocking end 123n at the joint space 111, respectively, and the portion of the bottom cover 117 facing the blocking structure 122n forms a mating structure 113n, and the blocking structure 122n abuts against the mating structure 113n in a plane to seal (in this state, as shown in fig. 10 b) when the air valve 12n is in the first position, so as to close the air flow passage 112.

The blocking end 123n presses against the bottom cover 117 when the valve 12n is in the second position (this state is shown in fig. 10 a). At this time, the blocking structure 122n is far away from the mating structure 113n, and the airflow passage 112 is opened. To facilitate venting, the bottom cover 117 is formed with a plurality of conducting grooves 1171n facing the joint space 111 and communicating with the air holes 115.

In this embodiment, no actuator is provided, the air valve 12n is an elastic structure, such as a silica gel structure or a rubber structure, and the plugging mechanism 122n can be disengaged from the connection with the adapting structure 113n by lifting the air valve 12n, so as to open the air flow channel 112.

The use process of the vacuum liquid storage device 1000 of the embodiment is briefly described as follows: after filling the bottle 20 with the liquid, the bottle cap 10 is attached to the bottle 20. Subsequently, the connector 210 is installed, the air extractor extracts air, the air valve 12n is sucked out, the air valve 12n is switched from the first position to the second position, the air flow channel 112 is opened, the air in the inner cavity of the bottle 20 flows to the air flow channel 112 through the air hole 115, i.e. flows along the solid arrow in fig. 10a, the air in the inner cavity of the bottle 20 is extracted, a vacuum or negative pressure environment is formed, the air extractor is closed after a certain time, and the connector 210 is removed. At this time, the air flow channel 112 is connected to the atmosphere, because the inner cavity of the bottle 20 is in a negative pressure environment, the atmospheric pressure pushes the air valve 12n to move from the second position to the first position, the blocking structure 122n is abutted with the mating structure 113n, the air flow channel 112 is closed, and the inner cavity of the bottle 20 is kept in a negative pressure environment, which is shown in fig. 10 b.

When the bottle cap 10 needs to be removed, a force F is applied in the direction of the large arrow in fig. 10b to lift the air valve 12n, so as to switch the air valve 12n from the first position to the second position, the air flow channel 112 is opened, and air in the atmospheric environment flows into the inner cavity of the bottle 20 through the air hole 115, so as to break the vacuum environment in the inner cavity of the bottle 20, and then the bottle cap 10 can be removed.

The above disclosure is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and the equivalent changes made by the claims of the present invention are all covered by the present invention.

Claims (10)

1. A bottle cap adapted to be assembled to a bottle, the bottle cap comprising a cap body, a gas valve and an actuator, the cap body having a joint end for connecting to the bottle and defining a joint space, the cap body further defining a gas flow passage extending through the cap body and communicating with the joint space, the gas valve being movably mounted in the gas flow passage, the gas valve having at least a first position for closing the gas flow passage and a second position for opening the gas flow passage relative to the cap body, the gas valve being switchable from the first position to the second position upon evacuation, the gas valve being biased by the atmosphere after evacuation to switch from the second position to the first position, the actuator being mounted to the cap body or the gas valve, the actuator being operable to communicate the joint space with the atmosphere.

2. The bottle cap of claim 1, wherein the gas valve includes a blocking structure, the cap body defining a mating structure within the flow passage, the blocking structure abutting the mating structure to close the flow passage when the gas valve is in the first position, the blocking structure being spaced apart from the mating structure to open the flow passage when the gas valve is in the second position.

3. The bottle cap of claim 2, wherein the gas valve further comprises a support member, the blocking structure is sleeved at a first end of the support member, a second end of the support member penetrates through the cap body, the mating structure has a gas flow passage, the cap body is provided with a gas hole communicated with the gas flow passage and the joint space, the mating structure surrounds the gas hole, the gas flow passage is communicated with the gas flow passage, and the blocking structure movably penetrates through the gas flow passage.

4. The bottle cap of claim 3, wherein the mating structure is a cylindrical structure, an inner cavity of the cylindrical structure forms the gas flow passage, the blocking structure is arranged in a conical structure, and a small-diameter end of the blocking structure movably penetrates through the gas flow passage.

5. The bottle cap according to claim 3, wherein a pressure release passage is formed in the support member to penetrate through both ends of the support member, the actuator is movably installed in the pressure release passage, the actuator closes the pressure release passage, and the actuator opens the pressure release passage when operated.

6. The bottle cap of claim 5, wherein the pressure relief channel extends in the same direction as the airflow channel, the first end of the actuator extends through the first end of the support, and a sealing member is mounted at the first end of the actuator and tends to close the pressure relief channel by abutting against the first end of the support.

7. The bottle cap of claim 5, wherein the second end of the actuating member protrudes through the second end of the support member to form an operating portion, and an elastic member is installed between the support member and the operating portion and has a tendency to urge the operating portion away from the support member.

8. The bottle cap of claim 5, wherein the cap body includes a top cap, a bottom cap, and a plurality of spiral caps disposed between the top cap and the bottom cap, the spiral caps are rotatably mounted to the bottom cap, the top cap is mounted to the bottom cap, the top cap defines a viewing window, a plurality of numeric symbols are formed on a top of the spiral caps, and the numeric symbols exposed to the viewing window constitute a time-recording symbol group.

9. A vacuum liquid storage bottle is characterized in that: comprising a bottle and a cap according to any of claims 1-8, the bottle being detachably mounted to the engagement end and the inner cavity of the bottle being in communication with the engagement space.

10. A vacuum reservoir comprising a suction device and a vacuum reservoir as defined in claim 9, the suction device having a suction end communicating with the gas flow channel, the suction device being adapted to pump out gas.

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