CN112938186A

CN112938186A - Packaging container with inner bag

Info

Publication number: CN112938186A
Application number: CN202110331852.9A
Authority: CN
Inventors: 陈华卿; 薛立新
Original assignee: Zhejiang Zhiyi Medical Technology Co ltd
Current assignee: Zhejiang Zhiyi Medical Technology Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-06-11

Abstract

The invention provides a packaging container with an inner bag, belonging to the technical field of containers. It solves the problem that the outer layer of the existing packaging container whose inner bag can be peeled off cannot use hard materials. The packaging container with inner bag includes a container body and a lid, the container body includes an outer casing and an inner bag located in the outer casing, the lid includes a lid body mounted on the container body, the lid body has a discharge channel and an air supply channel, and the discharge channel is connected with The inner cavity of the inner bag is communicated, and the air supply channel is communicated with the chamber between the outer shell and the inner bag; a control valve for controlling whether the discharge channel is in a through state is installed on the cover body, and the air supply channel is also installed on the cover body. A manual air pumping mechanism that is connected and can input air into the air supply channel. When the packaging container is made of hard material, the contents can still be discharged smoothly, and meanwhile, the air can be prevented from flowing back into the inner cavity of the inner bag, and the shelf life of the contents can be prolonged.

Description

Packaging container with inner bag

Technical Field

The invention belongs to the technical field of containers, and relates to a packaging container, in particular to a packaging container with an inner bag.

Background

The packaging container is generally a packaging device used according to a certain technical specification in order to protect commodities, facilitate storage and transportation in the process of commodity circulation. There are many related documents regarding packaging containers, such as a laminated peel-off container (application No. 96190328.7), in which an inner layer is peeled off from an outer layer during discharge of contents, the volume of the inner layer is reduced, air enters between the inner layer and the outer layer, mixing of the air and the contents is prevented, and the shelf life of the contents is prolonged. In order to facilitate control of discharge of contents, various packaging containers such as an air flow control device of a bag-in-peel container have been proposed (application No. 202021295905.3).

The outer layer of the packaging container is made of deformable and resettable material, such as PP or PETG. Some consumers have preference of materials, such as not preferring resin materials such as PP or PETG, but preferring materials such as glass, metal, ceramic and the like; in other words, when the outer layer of the packaging container is made of the material such as glass, metal, or ceramic, the contents are not easily discharged.

Disclosure of Invention

The invention provides a packaging container with an inner bag, and aims to solve the technical problem of smoothly discharging contents from the packaging container with the inner bag and a rigid outer shell.

The technical problem to be solved by the invention can be realized by the following technical scheme: a packaging container with an inner bag comprises a container body and a cover, wherein the container body comprises an outer shell and the inner bag positioned in the outer shell, the cover comprises a cover body arranged on the container body, a discharge channel and an air supply channel are arranged on the cover body, the discharge channel is communicated with an inner cavity of the inner bag, and the air supply channel is communicated with a cavity between the outer shell and the inner bag; the cover body is provided with a control valve for controlling whether the discharge channel is in a through state, and the cover body is also provided with a manual inflating mechanism which is communicated with the air supply channel and can input air into the air supply channel.

The content is filled in the inner cavity of the inner bag of the packaging container; when taking out the content, firstly, a manual inflating mechanism is adopted to input air into a cavity between the outer shell and the inner bag, so that the air pressure of the cavity between the outer shell and the inner bag is greater than the external air pressure; and opening the control valve, gradually extruding and deforming the inner bag under the pressure of the air in the cavity between the outer shell and the inner bag, and discharging the content in the inner bag from the discharge passage.

Compared with the prior art, the shell of the packaging container can be made of hard materials such as glass, metal, ceramic and the like, so that the shell has certain rigidity, is not easy to deform, and is not easy to automatically recover after being extruded and deformed; in other words, when the packaging container is made of hard materials, the contents can be discharged smoothly, air can be prevented from flowing back to the inner cavity of the inner bag, and the quality guarantee period of the contents is prolonged. The packaging container realizes the control of the total amount of air input into a cavity between the outer shell and the inner bag by controlling the operation times of the manual inflating mechanism, and further indirectly controls the discharge pressure, speed and total amount of contents.

Drawings

Fig. 1 is a schematic sectional view of a packaging container.

Fig. 2 is a schematic view of a part of the structure of the packaging container with the discharge channel in a shut-off state.

Fig. 3 is a schematic view of a partial structure in a packaging container with a discharge passage in a through state.

Fig. 4 is a schematic perspective view of the connecting sleeve.

In the figure, 1, a container body; 1a, a shell; 1a1, cavity part; 1a2, mouth edge; 1a3, neck; 1b, an inner bag; 1b1, pocket portion; 1b2, a connecting part; 1b3, turned edge part; 1c, connecting sleeves; 1c1, ring; 1c2, tube; 1c3, air guide groove; 2. a cover; 2a, a cover body; 2a1, protective cover; 2a2, a cover; 2a2a, sealing lip; 2a2b, a pressing surface; 2a3, discharge channel; 2a4, air supply channel; 2b, a control valve; 2b1, valve stem; 2b2, a seal; 2b3, elastic member; 2c, a manual inflating mechanism; 2c1, pumping chamber; 2c2, pump piston; 2c3, pump rod; 2c4, a first membrane; 2c5, a second membrane; 2c6, press cap.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, the packaging container includes a container body 1 and a lid 2 mounted on the container body 1.

The container body 1 includes an outer shell 1a made of a hard material and an inner bag 1b inside the outer shell 1 a. The hard material is glass, metal or ceramic. The housing 1a comprises a chamber portion 1a1, a mouth edge portion 1a2 and a neck portion 1a3 connecting the chamber portion 1a1 and the mouth edge portion 1a2, and the figures in the specification show that the cover 2 and the container body 1 are hooked by barbs, so that the hooks of the barbs abut against the bottom surface of the mouth edge portion 1a 2. According to practical conditions, the container body 1 and the cover 2 can be fastened by adopting a threaded connection structure instead of barbs, and the opening edge part 1a2 is provided with threads.

The inner bag 1b includes a bag portion 1b1 located in the cavity portion 1a1, a connecting portion 1b2 located in the neck portion 1a3, and a flap portion 1b3 located above the flap portion 1a 2. The inner bag 1b is provided with a high barrier layer which is made of aluminum foil or EVOH.

The container body 1 further includes a connecting sleeve 1c between the outer case 1a and the inner bag 1b, and the connecting sleeve 1c includes a ring portion 1c1 located above the brim portion 1a2 and a tube portion 1c2 located inside the neck portion 1a 3. When the inner bag is not mounted in the outer case 1a, the inner bag can be stored in the tube part 1c2 in a folded state, which facilitates packaging and transportation and protects the inner bag. The edge turning part 1b3 of the inner bag 1b is fixedly connected with the ring part 1c1 of the connecting sleeve 1c, the pipe part 1c2 of the connecting sleeve 1c penetrates into the outer shell 1a from the opening, the ring part 1c1 abuts against the edge part 1a2, and the position of the connecting sleeve 1c is located, so that the inner bag 1b is conveniently installed in the outer shell 1a, the installation state consistency of the inner bag 1b is improved, particularly, the inner bag 1b is prevented from completely falling into the outer shell 1a, the subsequent filling of contents into the inner bag 1b can be facilitated, and the sealing performance of the cover 2 and the inner bag 1b is improved. The outer side of the connecting sleeve 1c is provided with air guide grooves 1c3, which facilitate the air entering the cavity between the outer shell 1a and the inner bag 1b, especially to make the air preferentially reach the cavity between the bag part 1b1 and the cavity part 1a1, and further make the bag part 1b1 preferentially collapse relative to the connecting part 1b2, thus facilitating the smooth discharge of the content. A plurality of air guide grooves 1c3 are arranged around the connecting sleeve 1c, which is helpful for improving the air distribution uniformity around the bag part 1b1 and realizing the improvement of the discharging smoothness of the contents.

The cover 2 comprises a cover body 2a, a control valve 2b and a manual inflating mechanism 2c, the cover body 2a is made of plastic materials, the cover body 2a further comprises a protective cover part 2a1 and a sealing cover part 2a2 positioned in the protective cover part 2a1 for manufacturing convenience, and the barbs are fixedly connected with the protective cover part 2a 1. The cap unit 2a2 has a sealing lip 2a2a fitted into the neck portion 1a3 of the container body 1 and abutting against the inner surface of the inner bag 1b, whereby a seal is formed between the sealing lip 2a2a and the inner surface of the inner bag 1 b. The cover part 2a2 has a pressing surface 2a2b pressing against the top surface of the turned part 1b3 in the inner bag 1b, the ring part 1c1 of the connecting sleeve 1c and the turned part 1b3 of the inner bag 1b are squeezed between the opening part 1a2 of the outer casing 1a and the cover part 2a2 of the cover body 2a, and thus the pressing surface 2a2b of the cover part 2a2 forms a seal with the turned part 1b3 of the inner bag 1 b. Double sealing is formed between the cover 2 and the inner bag 1b, so that the sealing performance is effectively improved, and the shelf life of the contents is prolonged.

The lid body 2a has a discharge passage 2a3 and an air supply passage 2a4, the discharge passage 2a3 communicates with the inner cavity of the inner bag 1b, and the air supply passage 2a4 communicates with the air guide groove 1c 3. A control valve 2b is mounted on the lid body 2a, and the control valve 2b is used for controlling whether the discharge passage 2a3 is in a through state, that is, when the control valve 2b is operated to make the discharge passage 2a3 in a through state, the content contained in the inner bag 1b can be discharged through the discharge passage 2a 3; when the control valve 2b is operated to stop the discharge passage 2a3, the contents are kept stored in the inner bag 1b and air is prevented from entering the inner bag 1b through the discharge passage 2a3, thereby extending the shelf life of the contents.

The manual inflating mechanism 2c is mounted on the cover body 2a, the manual inflating mechanism 2c comprises an inflating cavity 2c1 positioned in the cover body 2a and an inflating piston 2c2 positioned in the inflating cavity 2c1, an inflating rod 2c3 penetrates through the cover body 2a, and the inflating rod 2c3 is connected with the inflating piston 2c 2; the air supply path 2a4 communicates with the bottom of the pump chamber 2c1, and thus the pump rod 2c3 is pushed and pulled up and down, and the pump rod 2c3 moves the piston, thereby supplying air into the air supply path 2a 4. The first diaphragm 2c4 is attached to the side wall of the pumping chamber 2c1, and the second diaphragm 2c5 is attached to the pumping piston 2c2, whereby the first diaphragm 2c4 prevents the air in the air supply passage 2a4 from flowing back into the pumping chamber 2c1, and the second diaphragm 2c5 prevents the air in the pumping chamber 2c1 from flowing back to the atmosphere.

The control valve 2b comprises a valve rod 2b1 arranged on the cover body 2a in a penetrating way and a sealing piece 2b2 arranged on the valve rod 2b1, and an elastic piece 2b3 is arranged between the valve rod 2b1 and the cover body 2 a. The inflating rod 2c3 is fixedly connected with a pressing cap 2c6, the axis of the valve rod 2b1 is parallel to the axis of the inflating rod 2c3, and when the pressing cap 2c6 moves downwards, the pressing cap 2c6 can push the valve rod 2b1 to move and enable the discharge channel 2a3 to be in a through state. According to practical conditions, the axial line of the valve rod 2b1 and the axial line of the inflating rod 2c3 can be crossed, the cover body 2a is provided with an interlocking structure connected with the valve rod 2b1, and when the pressing cap 2c6 moves downwards, the pressing cap 2c6 drives the valve rod 2b1 to move through the interlocking structure and enables the discharge channel 2a3 to be in a through state. The structure and the operation mode have the advantages of simple structure and convenient use.

When the inner cavity of the inner bag 1b of the packaging container is filled with contents, the functions and advantages of all the components are further explained by explaining the process of discharging the contents, an operator holds the pressing cap 2c6 by hand and pushes and pulls the pressing cap 2c6 up and down, the pressing cap 2c6 sequentially drives the inflating rod 2c3 and the inflating piston 2c2 to move up and down, air is input into the air supply channel 2a4 in the process, and the dotted arrow in fig. 3 indicates the air flowing direction; air enters a cavity between the bag part 1b1 of the outer shell 1a and the cavity part 1a1 of the inner bag 1b through the air guide groove 1c3, and the air pressure of the cavity is increased and is higher than the external air pressure. The push cap 2c6 should be prevented from pushing the valve stem 2b1 of the control valve 2b during the air supply phase, the push cap 2c6 is pushed downwards continuously when the content needs to be removed, and then the push cap 2c6 pushes the valve stem 2b1 of the control valve 2b downwards, the elastic member 2b3 is compressed and the sealing member 2b2 is separated from the sealing surface, so that the discharge passage 2a3 is in a through state, the content is discharged through the discharge passage 2a3 under the action of air pressure, and the solid arrow in fig. 3 indicates the air flow direction. When the operator releases the cap 2c6, the valve stem 2b1 of the control valve 2b is automatically moved to automatically switch the discharge passage 2a3 to the cutoff state by the elastic force of the elastic member 2b 3.

Claims

1. A packaging container with an inner bag, comprising a container body (1) and a lid (2), the container body (1) comprising an outer casing (1a) and an inner bag (1b) located in the outer casing (1a), the lid (2) ) comprising a cover body (2a) mounted on the container body (1), characterized in that the cover body (2a) is provided with a discharge channel (2a3) and an air supply channel (2a4), the discharge channel (2a3) and the inner The inner cavity of the bag (1b) is communicated, and the air supply channel (2a4) is communicated with the chamber between the outer shell (1a) and the inner bag (1b); For the control valve (2b) in the through state, the cover body (2a) is also provided with a manual air pumping mechanism (2c) which communicates with the air supply channel (2a4) and can input air into the air supply channel (2a4).

2 . The packaging container with an inner bag according to claim 1 , wherein the outer shell ( 1 a ) is made of hard material, and the inner bag ( 1 b ) has a high barrier layer. 3 .

3. The packaging container with an inner bag according to claim 1, characterized in that, the container body (1) further comprises a connecting sleeve (1c) located between the outer casing (1a) and the inner bag (1b), which connects The sleeve (1c) is provided with an air guide groove (1c3) communicated with the air supply channel (2a4).

4. The packaging container with an inner bag according to claim 3, characterized in that, the inner bag (1b) is fixedly connected with the connecting sleeve (1c).

5. The packaging container with an inner bag according to claim 4, characterized in that, the connecting sleeve (1c) has a ring portion (1c1) abutting on the top surface of the outer shell (1a).

6. The packaging container with an inner bag according to claim 4, characterized in that the inner bag (1b) comprises a flange portion (1b3) located above the ring portion (1c1), and the flange portion (1b3) is connected to The ring portion (1c1) seals the fixed connection.

7. The packaging container with an inner bag according to claim 6, characterized in that the outer shell (1a) has a neck (1a3), and the connecting sleeve (1c) further comprises a pipe part located in the neck (1a3) (1c2); The inner bag (1b) can be folded and stored in the tube (1c2).

8. The packaging container with an inner bag according to any one of claims 1 to 6, characterized in that the manual air pumping mechanism (2c) comprises a pumping chamber (2c1) located in the cover body (2a) and The pumping piston (2c2) is located in the pumping chamber (2c1), the cover (2a) is provided with a pumping rod (2c3), and the pumping rod (2c3) is connected with the pumping piston (2c2); the air supply channel (2a4) is connected to The pumping chamber (2c1) is connected.

9 . The packaging container with inner bag according to claim 8 , wherein the control valve ( 2 b ) comprises a valve rod ( 2b1 ) passing through the cover body ( 2 a ) and a valve rod ( 2b1 ) installed on the cover body ( 2 a ). 10 . ) on the sealing member (2b2), and an elastic member (2b3) is also provided between the valve stem (2b1) and the cover body (2a).

10. The packaging container with inner bag according to claim 9, characterized in that a pressure cap (2c6) is fixedly connected to the pump rod (2c3), and the axis line of the valve rod (2b1) is connected to the pump rod (2c3). 2c3) are arranged in parallel, and when the pressure cap (2c6) moves down, the pressure cap (2c6) can push the valve stem (2b1) to move and make the discharge channel (2a3) in a through state; or on the pump rod (2c3) A pressure cap (2c6) is fixedly connected, the axis line of the valve stem (2b1) intersects with the axis line of the pump rod (2c3), and a linkage structure connected to the valve stem (2b1) is installed on the cover body (2a) , when the pressure cap (2c6) moves downwards, the pressure cap (2c6) can drive the valve stem (2b1) to move through the linkage structure and make the discharge channel (2a3) in a through state.