WO2012103803A1

WO2012103803A1 - Vacuum container

Info

Publication number: WO2012103803A1
Application number: PCT/CN2012/070788
Authority: WO
Inventors: 张德光
Original assignee: Cheung Tak Kwong
Priority date: 2011-02-01
Filing date: 2012-01-31
Publication date: 2012-08-09
Also published as: CN201961681U

Abstract

A vacuum container comprises a container body (1) and a container cover (2). A piston (4) is disposed in the inner cavity of the container body (1), and a push rod (5) is disposed on the outward-facing surface of the piston (4). In use, the push rod (5) is pulled out, the piston (4) is pushed upward or downward to exhaust air in the container body (1), and then the container cover (2) covers the container body for sealing, so that liquid in the container can be preserved for a long time and does not spoil.

Description

Vacuum container

TECHNICAL FIELD The present invention relates to a vacuum container. BACKGROUND OF THE INVENTION Most of the traditional wine bottles and beverage bottles currently used on the market are directly inserted into the bottle stopper to achieve the purpose of sealing, but usually after the cap is closed, air remains in the bottle, and after each time the liquid in the bottle is drawn The air in the bottle is more. The gas contained in the air may cause a chemical reaction in the contents of the bottle, which may cause the material to deteriorate. SUMMARY OF THE INVENTION The object of the present invention is a vacuum container which is simple in structure and convenient to use. The object of the present invention is achieved by the following technical solutions: a vacuum container comprising a container body and a container cover, a piston is arranged in the inner cavity of the container body, and a push rod is arranged on an outward side of the piston . As an embodiment of the present invention, the bottom end of the container body is provided with a detachable bottom cover, the bottom cover has a through hole at the middle thereof, and the diameter of the through hole is larger than the length of the folded push rod; a piston is disposed on the bottom cover, and a side of the piston facing the bottom cover is provided with a square boss, one end of the foldable push rod is hinged with the square boss, and the push rod is a foldable push rod . The bottom cover is screwed to the bottom end of the container body. The bottom cover is engaged with the bottom end of the container body. The piston is provided with at least one leakage preventing sealing ring for increasing the friction between the piston and the inner wall of the bottle body, and further strengthening the sealing function. As an embodiment of the present invention, the container cover includes a cover body and a rotary shutter, the cover body is coaxially mounted with the rotary shutter, and the two are relatively rotatable; the rotary shutter includes an inner rotation in the cover body. a shutter and a rotary handle connected to the inner rotary shutter; the cover body is provided with a liquid outlet hole and a vent hole, and the inner rotary shutter is also provided with a liquid outlet hole and a vent hole, and the rotary rotary handle is connected to the cover body and the inner rotary shutter a liquid leakage hole and a vent hole; a leakage preventing film is disposed between the cover body and the inner rotation shutter, and the leakage preventing film is correspondingly disposed at a position corresponding to the liquid hole and the vent hole provided on the cover body Liquid and vent holes. The present invention can be modified as follows: a shaft hole is disposed in a middle portion of the inner cavity of the cover, and a movable mounting shaft is disposed in the shaft hole, the rotating handle is mounted on an upper portion of the mounting shaft, and the inner rotating shutter Open in the middle a shaft hole is disposed on the mounting shaft through the shaft hole, and a return spring is disposed on the mounting shaft in the shaft hole, the upper end of the return spring abuts against the inner wall of the shaft hole of the rotary shutter, and the lower end thereof is fixed to the mounting On the locking meson on the shaft; two undulating protrusions are provided at the edge on the side of the rotating shutter that is in contact with the leakage preventing film, the two undulating protrusions are passed through the center of the rotating shutter and the rotating shutter The straight line of the center of the liquid outlet is symmetrically distributed symmetrically; correspondingly, two wave-shaped protrusions are symmetrically distributed at corresponding positions of the cover body, and the wave-shaped protrusion and the cover body on the rotary shutter are rotated when the rotary handle is rotated When the upper wave-shaped protrusions are in contact, the return spring is compressed to separate the rotary shutter from the cover body, avoiding wear and tear-proof film during rotation, and also functioning as a positioning. In another embodiment of the present invention, the container cover includes a cover body, and the cover body is provided with a liquid hole and a vent hole, and a gas valve is disposed in the vent hole, and the gas valve includes a piston and a return spring sleeved on the piston, the two are located in the vent hole, the bottom end of the vent hole is provided with a flange, the upper part of the piston is also provided with a flange, and one end of the return spring is fixed at the bottom end of the vent hole The other end of the return spring is fixed on the upper flange of the piston; the top of the cover body is provided with an opening and closing lever, and the opening and closing lever is hinged at a fulcrum with a support column disposed on the cover body, a sealing rubber plug corresponding to the position of the liquid outlet hole corresponding to the liquid outlet hole is provided on the opening and closing lever, and a protrusion for pressing the piston of the air valve is disposed at a position corresponding to the air valve, in use, only The opening and closing lever needs to be pressed to realize the opening and closing action of the sealing plug. When the opening and closing lever is pressed, the protrusion on the opening and closing lever presses the piston of the air valve downward to open the vent hole, loosely open and close. Lever, the piston of the gas valve is automatically reset to close the vent As an improvement of the present invention, the support column is rotatably mounted on the cover in a horizontal plane. As another embodiment of the present invention, the container body is a kettle body, the kettle body is provided with a spout and a detachable top cover, and the spout is provided with a dust cover, and the piston is disposed at In the upper part of the inner cavity of the kettle body, one end of the push rod is fixed on the top surface of the piston; and the piston is provided with at least one leakproof seal ring. The top cover is screwed to the top end of the bottle body. The top cover is engaged with the top end of the bottle body. The piston is provided with at least one leakage preventing sealing ring for increasing the friction between the piston and the inner wall of the bottle body, and further strengthening the sealing function. Compared with the prior art, the present invention has the following significant advantages:

1. The invention has the advantages of simple structure and convenient use. When using, it is only necessary to pull the push rod out, push the piston up or down, discharge the air in the bottle, and then cover the bottle cap to seal, so that the bottle can be sealed. Long-term storage of liquids does not deteriorate. Since the piston of the present invention is pushed up or down, after the liquid in the bottle is used up, the piston can be pushed back to the original position, and the liquid can be circulated, such as a beverage, red wine or medicine. 2. The cover of the cap of the invention is provided with a rotatable rotary shutter, and the opening and closing of the liquid outlet on the cover body can be realized by simply rotating the rotary shutter, which is very convenient to use.

3. The lid of the bottle cap of the present invention is provided with an opening and closing lever to control the opening and closing of the sealing plug. In use, the sealing plug can be opened and closed by pressing the opening and closing lever, and the opening and closing action of the sealing plug can be realized. When the lever is used, the protrusion on the opening and closing lever can press the piston of the air valve downward to open the vent hole, loosely open the closing lever, and the piston of the air valve automatically resets and closes the vent hole, which is very convenient to use. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a cross-sectional view showing a first embodiment of the present invention. Figure 2 is a cross-sectional view of the piston of Figure 1. Fig. 3 is a bottom view of Fig. 1; Figure 4 is a front elevational view of the piston of the first embodiment of the present invention. Figure 5 is a schematic view showing the structure of a bottle cap according to a second embodiment of the present invention. Figure 6 is a top plan view of the inner rotary shutter of Figure 5; Figure 7 is a schematic view showing the structure of a wave-shaped projection between a cover body and an inner rotary shutter. Figure 8 is a schematic view showing the structure of a bottle cap according to a third embodiment of the present invention. Figure 9 is a plan view of Figure 8. Figure 10 is a cross-sectional view showing a fourth embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings: Embodiment 1 A vacuum bottle shown in Figs. 1 to 4 is an embodiment of the present invention, and is composed of a bottle body 1, a cap 2, a piston 4 and a bottom cover 3. The bottom end of the bottle body 1 is screwed to the bottom cover 3, and the bottom cover 3 has a through hole in the middle. The piston 4 is installed in the bottle body 1 and is disposed on the bottom cover 3. The outer side of the piston 4 is provided with two leakage preventing rubber rings 6 for preventing leakage and sealing the bottle. The push rod 5 is hinged by three "U" shaped bars that are sequentially increased from top to bottom. The bottom of the piston 4 is recessed inwardly to form a cavity, and a square boss is arranged in the cavity. The free end of the smallest rod of the push rod 5 is hinged to the square boss. The length of the push rod 5 after folding is smaller than the diameter of the through hole in the bottom cover 3, which facilitates the storage of the rod and the placement of the vacuum bottle. The second embodiment differs from the first embodiment in that: as shown in Figs. 5, 6 and 7, the cap 2 is screwed to the bottle body 1. The cap 2 is constructed by coaxially mounting the cap 21 and the rotary shutter, and the two are relatively rotatable. The rotary shutter is constituted by an inner rotary shutter 23 located inside the cover 21 and a rotary handle 22 connected to the inner rotary shutter. A leak-proof film 24 is disposed between the cover 21 and the inner rotary shutter 23. A shaft hole is disposed in a middle portion of the inner cavity of the cover body 21, and a mounting shaft 213 is detachably disposed in the shaft hole, and the mounting shaft 213 is rotatable in the shaft hole. The rotary handle 22 is mounted on the upper portion of the mounting shaft 213, and a shaft hole 233 is formed in the middle of the inner rotary shutter 23, and is fitted over the lower portion of the mounting shaft 213 through the shaft hole 233. A return spring 234 is disposed on the mounting shaft 213. The upper end of the return spring 234 abuts against the inner wall of the shaft hole 233 of the inner rotary shutter 23, and the lower end thereof abuts against the locking hole 235 fixed to the mounting shaft 213. Two undulating projections are provided at the edge on the side of the inner rotary shutter 23 that is in contact with the leakage preventing film 24, and the two undulating projections are passed through the center of the inner rotary shutter 23 and the inner opening of the shutter 23 on the shutter 23 The center line is symmetrically distributed symmetrically. Correspondingly, two undulating projections are likewise provided at the respective positions of the cover body 21. The two undulating projections are symmetrically distributed symmetrically about a line parallel to a line passing through the center of the inner rotary shutter 23 and the center of the liquid outlet on the inner rotary shutter 23. When the rotary handle 22 is rotated, when the wave-shaped projection on the inner rotary shutter 23 comes into contact with the wave-shaped projection on the cover body 21, the return spring 234 is compressed to separate the inner rotary shutter 23 from the cover body 21, Avoid wearing the leak-proof film 24 when turning, and also can play a positioning role. A liquid outlet 211 and a vent hole 212 are provided in the lid body 21. A liquid outlet hole 231 and a vent hole 232 are also provided in the inner rotary shutter 23, and the leakage preventing film 24 is correspondingly provided with a liquid outlet hole and a vent hole corresponding to the position of the liquid outlet hole 211 and the vent hole 212 on the lid body 21. The rotary body 22 is rotated to communicate the liquid outlet and the vent hole on the cover 21, the leakage preventing film 24, and the inner rotary shutter 23. In use, the lid body 21 is rotated, the liquid outlet holes on the lid body 21 and the inner rotary shutter 23 are communicated, and the vent holes 232 on the lid body 21 and the inner rotary shutter 23 are communicated to pour out the liquid in the bottle. Then, the piston 4 in the vacuum bottle is pushed up to discharge the air in the bottle, and then the outer rotary shutter 22 is rotated to close the liquid outlet hole 211 and the vent hole 212 in the cover body 21. The third embodiment is different from the first embodiment. As shown in FIGS. 8 and 9, the bottle cap 2 includes a lid body 21, and the lid body 21 is provided with a liquid hole 211 and a vent hole 212. A gas valve is provided in the vent hole 212. The gas valve is composed of a cylindrical piston 25 and a return spring 26 that is sleeved on the piston 25. The cylindrical piston 25 and the return spring 26 are located within the vent 212. The bottom end of the vent hole 212 is provided with a flange, and the upper end of the cylindrical piston 25 is also provided with a bottom end of the flange return spring 26 fixed at the bottom end of the vent hole 212. The flange of the return spring 26 is fixed to the upper flange of the cylindrical piston 25. The upper surface of the cover 21 is provided with an opening and closing lever 27 and a support post 28. The support post 28 is rotatably fitted over a fixed shaft fixed to the cover 21. The opening and closing lever 27 is hinged to the support post 28 at the fulcrum by the torsion spring 20, so that the opening and closing lever 27 can be pivoted by the fixed shaft. A sealing rubber stopper 29 is provided on the opening and closing lever corresponding to the shape of the liquid outlet hole 211 at a position corresponding to the liquid outlet hole 211, and has a cylindrical piston 25 for pressing the gas valve at a position corresponding to the air valve. Bump. A leak-proof film 24 is disposed between the cover 21 and the bottle opening. A liquid outlet hole and a vent hole are provided on the leakage preventing film 24 at positions corresponding to the liquid outlet hole 211 and the vent hole 212 of the lid body 21. In use, the sealing plug 30 can be opened and closed by simply pressing and pushing the opening and closing lever 27. When the opening and closing lever 27 is pressed, the liquid outlet hole 211 of the cover body 21 is opened, and the opening and closing lever 27 is pushed to the set position, and the protrusion on the opening and closing lever 27 presses the cylindrical piston 25 of the air valve downward. The vent 212 can be opened to pour out the liquid in the bottle. Then, the piston 4 in the vacuum bottle is pushed upward to discharge the air in the bottle, and the opening and closing lever 27 is turned to reset, the cylindrical piston 25 of the air valve is automatically reset to close the vent hole 212, the closing lever 27 is loosely opened, and the sealing plug 30 is closed. Liquid hole 211. Embodiment 4 The vacuum kettle shown in Fig. 10 is another embodiment of the present invention, which comprises a kettle body 1 having a spout and a top cover 7 thereon, and the top cover 7 is screwed to the top end of the kettle body. A dust cover 2 is provided on the spout. The piston 4 is disposed at an upper portion of the inner cavity of the body 1, and one end of the push rod 5 is fixed to the top surface of the piston 4. The outer side of the piston 4 is provided with two leakage preventing sealing rings 6 for increasing the friction between the piston and the inner wall of the bottle, thereby further strengthening the sealing function. The above embodiments are only preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto. According to the above-mentioned contents of the present invention, according to the common technical knowledge and conventional means in the art, without departing from the above basic technical ideas of the present invention, The invention is susceptible to various other modifications, substitutions and alterations.

Claims

Rights request

A vacuum container comprising a container body and a container lid, wherein a piston is disposed in the body of the container body, and a push rod is disposed on an outward side of the piston.

The vacuum container according to claim 1, wherein the bottom end of the container body is provided with a detachable bottom cover, and the bottom cover has a through hole at a middle portion thereof, and the diameter of the through hole is larger than that of the folded a length of the push rod; the piston is disposed on the bottom cover, and a side of the piston facing the bottom cover is provided with a square boss, and one end of the foldable push rod is hinged with the square boss, The putter is a foldable putter.

The vacuum container according to claim 2, wherein the bottom cover is screwed to the bottom end of the container body.

The vacuum container according to claim 2, wherein the bottom cover is engaged with the bottom end of the container body.

The vacuum container according to claim 1 or 2 or 3 or 4, wherein the piston is provided with at least one leak-proof seal.

The vacuum container according to claim 5, wherein the container cover comprises a cover body and a rotary shutter, the cover body is coaxially mounted with the rotary shutter, and the two are relatively rotated; the rotary shutter comprises An inner rotary shutter located in the cover body and a rotary handle connected to the inner rotary shutter; the cover body is provided with a liquid outlet hole and a vent hole, and the inner rotary shutter is also provided with a liquid outlet hole and a vent hole, and the rotary rotary handle communication cover is rotated a liquid discharge hole and a vent hole on the inner and inner rotary shutters; a leakage preventing film is disposed between the cover body and the inner rotary shutter, and the leakage preventing film is provided with a liquid outlet hole and a vent hole corresponding to the cover body. The liquid outlet and the vent hole are correspondingly arranged at the position.

The vacuum container according to claim 6, wherein a shaft hole is disposed in a middle portion of the inner cavity of the cover, and a movable mounting shaft is disposed in the shaft hole, and the rotating handle is mounted on the mounting shaft An upper portion of the inner rotary shutter is provided with a shaft hole, and is disposed on the mounting shaft through the shaft hole, and a return spring is disposed on the mounting shaft in the shaft hole, and the upper end of the return spring is rotated An inner wall of the shaft hole of the shutter, the lower end of which is fixed to the locking meson fixed on the mounting shaft; and two undulating protrusions are disposed at the edge on the side of the rotating shutter which is in contact with the leakage preventing film, the two waves The convex shape is symmetrically distributed symmetrically by a straight line passing through the center of the rotary shutter and the center of the liquid outlet on the rotary shutter; correspondingly corresponding to the cover Two undulating projections are also arranged symmetrically in position.

The vacuum container according to claim 5, wherein the container cover comprises a cover body, and the cover body is provided with a liquid outlet and a vent hole, and a gas valve is disposed in the vent hole. The air valve includes a piston and a return spring sleeved on the piston, the two are located in the vent hole, the bottom end of the vent hole is provided with a flange, and the upper part of the piston is also provided with a flange, and one end of the return spring is fixed at the The bottom end of the vent hole is flanged, and the other end of the return spring is fixed on the upper flange of the piston; the top of the cover body is provided with an opening and closing lever, and the opening and closing lever is supported at the fulcrum and the support provided on the cover body a column hinge, a sealing rubber plug corresponding to the liquid outlet hole is disposed on the opening and closing lever, and a protrusion for pressing the piston of the air valve is disposed at a position corresponding to the air valve .

9. The vacuum vessel according to claim 8, wherein the support post is rotatably mounted on the cover at a horizontal plane.

The vacuum container according to claim 1, wherein the container body is a kettle body, the kettle body is provided with a spout and a detachable top cover, and the spout is provided with dustproof a cover, the piston is disposed at an upper portion of the inner cavity of the kettle body, and one end of the push rod is fixed on a top surface of the piston; and the piston is provided with at least one leakproof seal ring.