Pressure-resistant packaging

Abstract

The present invention relates to a pressure-resistant package. The pressure-resistant package includes an outer package and an inner package; the outer package is a pressure-resistant layer, the inner package is located inside the outer package in a form independent of the outer package to directly contain a medium, and the opening of the inner package directly extends to the outside of the outer package. The pressure-resistant package of the present invention can disassemble the packaging requirements of the medium during storage and transportation, and transfer different packaging requirements to the outer package and the inner package respectively, thereby reducing the comprehensive requirements for packaging material selection and reducing the manufacturing cost of the pressure-resistant package.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging, and in particular relates to a pressure-resistant packaging. Background Art

[0002] Pressure-resistant packaging is a type of packaging used to package media with positive pressure, or packaging that may generate positive pressure during storage or transportation or needs to resist external pressure.

[0003] At present, in order to ensure the pressure resistance of pressure-resistant packaging, metal materials are usually selected for packaging preparation to ensure the safety of the internal medium during storage and transportation. For example, for lightweight packaging with a capacity of less than 5L, metal cans made of aluminum or tinplate are usually selected to meet the pressure-resistant packaging requirements for small-volume solutions; and for packaging with a capacity of more than 5L, if aluminum and tinplate metal cans are continued to be used, they will appear thin and light, and are no longer suitable for pressure-resistant packaging of large-volume liquids, especially in the case of long-distance transportation. Thick metal plates are usually selected for the preparation of the cans, such as stainless steel plates or conventional metal plates with special coatings, to meet the storage and transportation requirements of different media.

[0004] However, for large-capacity metal cans, not only should metal plates with specific functions be selected according to the properties of the medium, such as corrosion resistance or food grade, but also the metal plates should have sufficient compressive strength, which places high demands on the material of the can, greatly increasing the cost of material selection. At the same time, in order to ensure the effective filling of the medium, it is usually necessary to install multiple valves with different functions on the surface of the can, such as tank liquid valves and vent valves, to ensure the normal filling and discharge of the medium, which will increase the manufacturing cost. In this case, in order to reduce the comprehensive cost of the entire can during the manufacturing and use process, it is usually considered to recycle and reuse the can, but after recycling, the inside of the can must be cleaned first, or even disinfected for food filling, before it can be used for secondary filling. For large-capacity cans, not only is the cleaning and disinfection cost high, but the effect is also unstable, which can easily lead to incomplete cleaning or damage to the coating, thus affecting the quality of secondary filling. Summary of the invention

[0005] Based on this, it is necessary to provide a pressure-resistant packaging with low manufacturing cost and meeting the use requirements in order to address the problem of high manufacturing cost of current pressure-resistant packaging.

[0006] The present invention proposes a pressure-resistant packaging, comprising an outer packaging and an inner packaging; the outer packaging is a pressure-resistant layer, the inner packaging is located inside the outer packaging in a form independent of the outer packaging to directly contain a medium, and the opening of the inner packaging directly extends to the outside of the outer packaging.

[0007] In one embodiment, the outer packaging is composed of multiple components, and the multiple components are connected by detachable assembly.

[0008] In one embodiment, the inner package and the outer package are detachably connected.

[0009] In one embodiment, the inner package includes a valve; the valve serves as an opening of the inner package and extends to the outside of the outer package, and the valve is detachably connected to the outer package.

[0010] In one embodiment, the valve has a valve seat, a valve body and a valve core, and the valve body is provided with a channel; one end of the valve seat is connected to the inner package, and the other end extends to the outside of the outer package; the valve body is located outside the outer package and is connected to the valve seat extending to the outside of the outer package; the channel runs through the valve body to connect the interior of the inner package and the outside of the outer package; the valve core is located at one end of the channel and can move back and forth relative to the valve body to control the opening and closing of the channel.

[0011] In one of the embodiments, the valve seat and the valve body are detachably connected, and when the valve seat is connected, the valve seat and the valve body are in contact with the inner surface and the outer surface of the outer package respectively.

[0012] In one of the embodiments, a switch assembly is further provided in the valve; the switch assembly is connected to the valve core to drive the valve core to reciprocate relative to the valve body to control the opening and closing of the channel.

[0013] In one embodiment, the switch assembly includes a driving member, a support frame and an elastic member; the driving member is movably connected to the valve body, one end of the support frame is connected to the driving member, and the other end is connected to the driving member, one end of the elastic member is contacted and connected to the support frame, and the other end is contacted and connected to the valve body; wherein the driving member can drive the support frame to overcome the force of the elastic member and drive the valve core to move to open the channel, and the elastic member can drive the support frame to drive the valve core to move in the opposite direction to close the channel.

[0014] In one of the embodiments, the switch assembly is further provided with a positioning member; the positioning member is connected to the valve body to limit the position of the driving member relative to the valve body.

[0015] In one embodiment, the valve body is provided with a plurality of channels; the plurality of channels respectively penetrate the valve body to connect the interior of the inner package with the exterior of the outer package.

[0016] The pressure-resistant packaging of the present invention adopts a split structural design and is composed of an outer packaging and an inner packaging that are independent of each other. The outer packaging serves as a pressure-resistant layer to meet the pressure-resistant requirements during storage and transportation, while the inner packaging directly contains the medium to meet the performance requirements of direct contact with the medium. The packaging requirements of the medium during storage and transportation are disassembled, and different packaging requirements are transferred to the outer packaging and the inner packaging respectively, thereby reducing the comprehensive requirements for packaging material selection and reducing the manufacturing cost of the pressure-resistant packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the explosion structure of the pressure-resistant packaging in this embodiment;

[0018] Figure 2 This is a schematic diagram of the explosion structure of the first outer package in other embodiments;

[0019] Figure 3 This is a schematic diagram of the explosion structure of the second outer package in other embodiments;

[0020] Figure 4 This is a schematic diagram of the explosion structure of the third outer package in other embodiments;

[0021] Figure 5 This is a schematic diagram of the explosion structure of the fourth outer package in other embodiments;

[0022] Figure 6 Schematic diagram of the appearance structure of the valve in this embodiment;

[0023] Figure 7 Schematic diagram of the cross-sectional structure of the valve in this embodiment;

[0024] Figure 8 is a schematic cross-sectional structure diagram of a first valve in other embodiments;

[0025] Fig. 9 is a schematic diagram of the appearance structure of a second valve in other embodiments;

[0026] Fig.10 It is a schematic cross-sectional structure diagram of a second valve in other embodiments.

[0027] Component number description:

[0028] In this embodiment, 10-outer packaging; 20-inner packaging; 30-valve; 101-left cover; 102-right cover; 103-intermediate body; 301-valve seat; 302-valve body; 303-valve core; 304-driving member; 305-support frame; 306-elastic member; 307-positioning member; 401-sealing ring; 3021-first channel; 3022-second channel; 3023-third channel; 3041-positioning plate;

[0029] In other embodiments, 10a-outer packaging; 101a-upper cover; 102a-lower cover; 10b-outer packaging; 101b-upper cover; 102b-lower cover; 103b-support leg; 10c-outer packaging; 101c-upper cover; 102c-lower cover; 103c-guard plate; 10d-outer packaging; 101d-upper cover; 102d-lower cover; 103d-left cover; 104d-right cover; 105d-connecting rod; 30a-valve; 303a-valve core; 304a-driving member; 3021a-first channel; 3022a-second channel; 3023a-third channel; 30b-valve; 302b-valve body; 303b-valve core; 304b-driving member; 3021b-first channel; 3022b-second channel; 3023b-third channel. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0036] Combination Figure 1 As shown, the pressure-resistant packaging of this embodiment includes an outer packaging 10 and an inner packaging 20. The outer packaging 10 is a pressure-resistant layer made of high-strength material to withstand external pressure during storage and transportation. The inner packaging 20 is located inside the outer packaging 10 in a form independent of the outer packaging 10, and is used to directly contain the medium. The opening of the inner packaging 20 extends to the outside of the outer packaging 10, and the medium is directly drained into the inner packaging 20 to complete the filling and extraction of the medium.

[0037] In this embodiment, the pressure-resistant packaging is designed as a split structure, consisting of an outer packaging and an inner packaging that are independent of each other, wherein the outer packaging serves as a pressure-resistant layer and bears the pressure-resistant requirements during storage and transportation, while the inner packaging directly contains the medium to bear the performance requirements of direct contact with the medium. At this time, by disassembling the packaging requirements of the medium during storage and transportation, the different packaging requirements are disassembled and transferred and concentrated on the outer packaging and the inner packaging respectively, that is, the pressure-resistant requirements are transferred and concentrated on the outer packaging, and the requirements for direct contact with the medium are transferred and concentrated on the inner packaging, thereby reducing the comprehensive requirements for packaging material selection and reducing the manufacturing cost of the pressure-resistant packaging.

[0038] For example, when the pressure-resistant packaging of this embodiment is used to store and transport juice, the manufacturing material of the inner packaging only needs to meet the edible grade requirements for contact with the juice, and the material and structure of the outer packaging only need to meet the pressure resistance requirements for storing and transporting liquids. In this case, the inner packaging can be made of PET plastic, and the outer packaging can be made of a can structure of hard plastic material, thereby replacing the food-grade stainless steel material that may be used in conventional packaging. This can greatly reduce the manufacturing cost of the entire pressure-resistant packaging and ensure that the packaging has sufficient pressure resistance and safety and stability for juice storage.

[0039] Combination Figure 1 As shown, in this embodiment, the outer packaging 10 adopts a split structure, consisting of a left cover 101, a right cover 102 and an intermediate body 103, and the left cover 101 and the right cover 102 are respectively connected to the two ends of the intermediate body 103 by threads, and the inner packaging 20 is fixed to the inside of the intermediate body 103 by detachable bolts.

[0040] At this time, by designing the outer packaging as a split structure composed of multiple components, and connecting the multiple components with a repeatedly disassembled threaded structure, and at the same time adopting a detachable fixed connection between the inner packaging and the outer packaging, not only can the outer packaging be quickly disassembled and assembled, improving the installation and fixing efficiency of the inner packaging, but also the inner packaging can be disassembled and replaced to meet the pressure-resistant storage and transportation of the inner packaging containing different media by the same outer packaging, thereby achieving the recycling and reuse of the outer packaging and improving the use efficiency of the outer packaging. In this case, since the outer packaging in this embodiment does not come into direct contact with the medium at all times, the disinfection requirements can be greatly reduced during the recycling and reuse of the outer packaging, and the cost of recycling and reuse can be greatly reduced, thereby achieving the effect of reducing the comprehensive cost of the entire packaging manufacturing and use.

[0041] In other embodiments, the outer packaging may also adopt other split structural designs to meet the usage requirements in different working conditions.

[0042] For example Figure 2 The outer package 10a shown is composed of an upper cover 101a and a lower cover 102a both of which are square structures, and the upper cover 101a and the lower cover 102a are plug-in connected by a snap-fit ​​method to cooperate with a small-sized inner package for storage and transportation of small-capacity media.

[0043] For example Figure 3 The outer packaging 10b shown is composed of an upper cover 101b and a lower cover 102b, and two legs 103b are respectively provided on the upper cover 101b and the lower cover 102b, which are used to provide effective and stable support for the horizontal placement of the upper cover 101b and the lower cover 102b, and the upper cover 101b and the lower cover 102b are connected by a long-distance push-pull method along the horizontal direction to meet the storage and transportation requirements of media with large capacity and high placement stability requirements. Among them, long-distance pushing and pulling refers to setting a complete slide at the edge position along the length direction of the upper cover 101b, and setting a corresponding complete slide groove at the edge position along the length direction of the lower cover 102b. In this way, after one end of the slide in the upper cover 101b is aligned with one end of the slide groove in the lower cover 102b in the horizontal direction, the upper cover 101b and the lower cover 102b can be pushed in the horizontal direction, so that the slide in the upper cover 101b is completely inserted into the slide groove in the lower cover 102b, completing the connection between the upper cover 101b and the lower cover 102b. Conversely, the upper cover 101b and the lower cover 102b can be removed from the connection by performing relative pulling operations in the horizontal direction on the upper cover 101b and the lower cover 102b.

[0044] For example Figure 4 The outer packaging 10c shown in the figure is Figure 3 The outer package 10b shown is similar, but the upper cover 101c and the lower cover 102c are connected by a short push-pull connection in the horizontal direction, that is, by distributing multiple sections of slides along the edge position of the length direction of the upper cover 101c, and distributing multiple sections of corresponding slides along the edge position of the length direction of the lower cover 102c, so that the upper cover 101c and the lower cover 102c can be firstly displaced and buckled, so that the slide in the upper cover 101c and the slide on the lower cover 102c remain in a displaced state, and then the upper cover 101c and the lower cover 102c are pushed in a short distance in the horizontal direction, and the slide in the upper cover 101c is inserted into the slide on the lower cover 102c, so as to complete the connection between the upper cover 101c and the lower cover 102c. At the same time, guard plates 103c are also provided at both ends of the upper cover 101c and the lower cover 102c in the horizontal direction to provide protection for both ends and can be used as a support to place the entire outer package vertically.

[0045] In addition, in other embodiments, Figure 5The structural form of the outer packaging 10d shown is that the outer packaging 10d is composed of an upper cover 101d, a lower cover 102d, a left cover 103d, a right cover 104d and two connecting rods 105d. Among them, after the upper cover 101d and the lower cover 102d are positioned and connected by multiple positioning blocks provided at the connection position, they are then horizontally plugged and connected by means of connecting rods 105d, so that the upper cover 101d and the lower cover 102d are connected as a whole, and then the left cover 103d and the right cover 104d are connected to the part formed by the upper cover 101d and the lower cover 102d in a threaded connection manner, so as to form a complete outer packaging. Since the structure is assembled from more components, it can be used as an outer packaging with a super large capacity, so that not only can it be stored and placed in a small space in the form of components before use, reducing the space occupation, but also it can reduce the processing difficulty and cost of the components, ensure the processing accuracy, and improve the quality of the final outer packaging.

[0046] In addition, no matter which structural form of the outer packaging is adopted, the outer packaging can be designed as a multi-component assembly structure, and components of the same structure and size can be used as standard parts. In this way, not only can a single component be quickly replaced during the use of the outer packaging to reduce the use and maintenance costs of the outer packaging, but it can also be temporarily and quickly assembled according to the use needs, thereby improving the convenience of the outer packaging.

[0047] In this embodiment, the inner package is detachably connected to the outer package by bolting to facilitate repeated disassembly and assembly. However, in other embodiments, if the pressure-resistant packaging is mainly used for storage, the inner package and the outer package can be connected in a more stable and secure manner, such as by welding with a bracket to ensure that the inner package can be stably placed inside the outer package for a long time, thereby improving the storage stability of the medium. In this case, after assembling the multiple components of the outer package, they can also be fixedly connected by welding to improve the stability of the outer package structure so that the outer package can meet the pressure resistance requirements under long-term storage.

[0048] In addition, although the storage and transportation of fruit juice is taken as an example in this embodiment to introduce and explain the selection of materials for the inner packaging and outer packaging in the pressure-resistant packaging of this embodiment, the pressure-resistant packaging of this embodiment can also be used to contain other media, such as powdered media or special gas media. In this case, it is only necessary to select the corresponding inner packaging according to the requirements of different media for direct containing, and then put the whole into the outer packaging with pressure-resistant performance.

[0049] Combination Figure 1 , Figure 6 and Figure 7As shown, a valve 30 is further provided in the pressure-resistant package of this embodiment. The valve 30 has a valve seat 301, a valve body 302 and a valve core 303, and three channels are provided on the valve body 302, namely a first channel 3021, a second channel 3022 and a third channel 3023.

[0050] The valve seat 301 is a hollow structure and one end is fixedly connected to the inner package 20. The other end is provided with an external thread and after being placed inside the outer package 10 with the inner package 20, it extends out through the opening 1011 provided on the left cover 101. The valve body 302 is located outside the outer package 10 and is threadedly connected to the external thread in the valve seat 301. During the threaded connection process between the valve body 302 and the valve seat 301, a clamping connection is formed to the left cover 101, thereby fixing the valve 30 on the outer package 10 in a detachable manner.

[0051] The first channel 3021, the second channel 3022 and the third channel 3023 all penetrate the valve body 302 to connect the interior of the inner package 20 with the outside. The valve core 303 is located at one end of the valve body 302 close to the inner package 20 and can reciprocate relative to the valve body 302 to control the opening and closing of the three channels.

[0052] At this time, by setting three channels on the valve, a valve can be used to simultaneously fill or extract multiple media, such as gas filling or exhausting during liquid filling, thereby reducing the number of valves and the number of holes on the outer packaging, further reducing the manufacturing cost of the pressure-resistant packaging. At the same time, by means of the threaded connection between the valve seat and the valve body, and the clamping connection formed with the outer packaging during the threaded connection, the valve and the outer packaging form a connection that can be quickly disassembled and assembled, so as to facilitate the assembly operation of the entire pressure-resistant packaging and improve the convenience of use.

[0053] In this embodiment, for the inner packaging made of PET plastic, the valve seat is made of a material that can be hot-melt connected to the PET plastic, and is once connected to the inner packaging by welding to ensure the tightness of the connection between the two. Similarly, in other embodiments, other methods can be used for connection, such as bolt connection with a sealing gasket to achieve repeated disassembly and assembly, so that the valve can be repeatedly used for the outer packaging with the same opening size, so that the valve can be recycled and reused together with the outer packaging.

[0054] Combination Figure 7As shown, in the valve 30 of this embodiment, a switch assembly consisting of a driving member 304, a support frame 305 and an elastic member 306 is also provided. The driving member 304 is a button structure with a hollow structure, and its inner cavity directly serves as a part of the first channel 3021 to connect the inner package 20 with the external pipeline, and the lower end of the driving member 304 is directly inserted into the first channel 3021 of the valve body 302 and can reciprocate along the axis of the first channel 3021. The support frame 305 is located between the driving member 304 and the valve core 303, and the lower end is axially fixedly connected to the valve core 303 through a thread, and the upper end is in axial contact with the driving member 304. The elastic member 306 is a coil spring and is sleeved on the outside of the support frame 305, and the upper end is in contact with the support frame 305, and the lower end is in contact with the valve body 302, so as to drive the support frame 305 to move in the direction of the driving member 304. Meanwhile, the support frame 305 is a skeleton structure, and the inner and outer sides are connected to each other to ensure that the medium can flow freely between the first channel in the valve body 302 and the first channel in the driving member 304 .

[0055] At this time, by designing the driving member as a button structure and selecting a coil spring as the elastic member, by applying a force along the axis direction of the first channel to the driving member, the support frame can be driven to overcome the elastic member and drive the valve core to move downward, thereby releasing the valve core from blocking the three channels and then opening the valve; conversely, when the force applied to the driving member is removed, the support frame moves upward under the action of the restoring force of the elastic member, thereby driving the valve core to move again to block the three channels and then close the valve again, thereby forming an opening and closing control over the valve.

[0056] In other embodiments, the driving member can also adopt a knob structure and can drive the support frame to rotate around the axis of the first channel, and the elastic member is a torsion spring and is sleeved on the support frame, one end of which is connected to the support frame and the other end is connected to the valve body to drive the support frame to rotate around the axis of the first channel. At this time, by rotating the driving member to overcome the force of the elastic member, the support frame and the valve core can be driven to rotate, thereby turning the valve core to a position to release the blocking of the three channels, thereby opening the valve; conversely, when the force on the driving member is released, the elastic member drives the support frame to rotate in the opposite direction, thereby driving the valve core to return to the blocking position of the three channels and close the valve again, thereby achieving the same control effect on the opening and closing of the valve.

[0057] Combination Figure 6 As shown, the valve 30 of this embodiment is further provided with a positioning member 307. The positioning member 307 is an L-shaped structure and is fixed on the valve body 302. Meanwhile, a positioning plate 3041 extending radially is provided on the driving member 304.

[0058] At this time, when it is necessary to control the movement of the driving member to open and close the valve, the driving member is first rotated to rotate the positioning plate to a position offset from the positioning member along the circumferential direction of the first channel, and then the driving member is reciprocated along the axial direction of the first channel to switch the opening and closing state of the valve. When the driving member moves to the opening or closing position of the valve, it is rotated again to rotate the positioning plate to a position aligned with the positioning member along the axial direction of the first channel. The positioning member forms an axial reverse movement limit for the driving rod at this time, thereby stabilizing the valve in the current state and preventing the driving rod from being in a free state and possibly moving accidentally, resulting in an erroneous change in the valve state, so as to improve the reliability and stability of the valve during use.

[0059] In addition, the positioning member can also adopt other structural forms, such as a structural form in which a positioning ring and a positioning pin cooperate with each other, and a plurality of radial positioning holes distributed along the axial direction are arranged on the driving rod. By means of the positioning pin passing through the positioning ring fixed on the valve body and then being plugged and connected with the radial positioning hole on the driving rod, the driving rod can be limited in the axial reciprocating movement relative to the valve body, thereby achieving the effect of fixing the valve state.

[0060] Combination Figure 7 As shown, in this embodiment, two layers of sealing rings 401 are further provided between the driving member 304 and the valve body 302. In this way, not only can the first channel be sealed with the help of the sealing ring to prevent leakage of the medium, but also the resistance to relative movement between the driving member and the valve body can be increased, thereby achieving an auxiliary positioning effect for the driving member, so that the driving member can be stabilized in the position of the valve opening or closing state.

[0061] In addition, sealing rings 401 are respectively provided at the positions where the valve core 303 contacts the second channel 3022 and the third channel 3023, and at the positions where the support frame 305 contacts the first channel 3021, so as to improve the sealing effect of the three channels. At the same time, the mutual squeezing force formed when the seal contacts the channel can also be utilized to increase the connection firmness of the valve core and the valve body, so as to improve the sealing stability of the three channels.

[0062] Combination Figure 7 As shown, a plurality of flow holes 3031 are provided in the valve core 303, and the plurality of flow holes 3031 are distributed in the circumferential direction around the first channel 3021. At this time, when the valve core moves to release the blockage of the first channel, the first channel is directly connected with the inner package by means of the plurality of flow holes, so that the first channel can directly perform medium filling or extraction operation on the inner package, thereby improving the filling and extraction efficiency of the first channel on the medium.

[0063] In addition, the pressure-resistant packaging of this embodiment may also use valves of other structural forms to serve as the opening of the inner packaging for filling and extracting the medium.

[0064] For example Figure 8 The valve 30a shown in the figure has a similar structure to the valve used in this embodiment, and the main difference is that the driving member 304a in the valve 30a includes a joint part connected to the first channel 3021a, the second channel 3022a and the third channel 3023a respectively, and the position of the valve core 303a in contact with the second channel 3022a and the third channel 3023a adopts a structural design with the opening facing upward.

[0065] At this time, the driving member also has connector parts that are connected to the external pipelines of the three channels respectively. In this way, by replacing the driving member with different structural forms, connection with external pipelines of different forms can be achieved, thereby meeting the requirements of coordinated use with different external pipelines and improving the use efficiency of the valve.

[0066] At the same time, by designing the bottom of the valve core that contacts the second channel and the third channel to be an upwardly opened structure, a buffering effect can be formed for the medium flowing into the inner package through the second channel and the third channel during the medium filling operation, so as to prevent the medium from directly entering the inner package after passing through the channel in a straight manner and causing impact damage to the inner package, thereby achieving improved protection for the inner package. Similarly, according to the filling requirements, a baffle can also be provided at a position close to the first channel in the valve core to form an inverted U-shaped channel between the first channel and the through hole on the valve core, thereby achieving a buffering effect for the medium in the first channel entering the inner package.

[0067] Another example Fig. 9 and Fig.10 In the valve 30b shown, a driving member 304b is connected to a valve body 302b by a threaded guide, that is, the driving member 304b can rotate in a circumferential direction relative to the valve body 302b, so that the driving member 304b forms an axial reciprocating movement relative to the valve body 302b, and then drives the valve core 303b to form an axial reciprocating movement, so as to achieve the opening and closing control of the valve.

[0068] In addition, three channels that can be connected with the inner packaging 20 are also arranged on the valve body 302b, but the two channels located on the relatively outer sides of the three channels are connected through the annular groove, thereby forming an independent first channel 3021b and a combined second channel 3022b, and then the first channel 3021b and the second channel 3022b are used to fill the medium of the inner packaging. At the same time, an external interface 3041b is also arranged on the driving member 304b, which is used to maintain communication with the annular part of the second channel 3022b, so that in the process of reciprocating rotation of the driving member 304b relative to the valve body 302b, the external connection state of the second channel 3022b can be maintained with the help of the external interface 3041b.

[0069] In addition, a highly elastic seal is provided between the driving member 304b and the valve body 302b to form an axial and circumferential seal between the driving member 304b and the valve body 302b, so as to ensure the sealing effect on the second channel 3022b when the driving member 304b forms an axial and circumferential reciprocating movement relative to the valve body 302b.

[0070] At this time, by controlling the movement of the drive member through threaded guidance, the movement of the valve core can be more accurately controlled, that is, the opening amount of the valve core can be accurately controlled, thereby improving the opening and closing control accuracy of the valve and obtaining better medium filling and extraction effects.

[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A pressure-resistant packaging, characterized in that: The invention comprises an outer package and an inner package; the outer package is a pressure-resistant layer, the inner package is located inside the outer package in a form independent of the outer package to directly contain the medium, and the opening of the inner package directly extends to the outside of the outer package; The inner package comprises a valve; the valve comprises a valve seat, a valve body and a valve core, and the valve body is provided with a channel; one end of the valve seat is connected to the inner package, and the other end extends to the outside of the outer package; the valve body is located outside the outer package and is connected to the valve seat extending to the outside of the outer package; the channel runs through the valve body to connect the inside of the inner package with the outside of the outer package; the valve core is located at one end of the channel; a switch assembly is also provided in the valve, and the switch assembly comprises a driving member, a support frame and an elastic member; the driving member is movably connected to the valve body, one end of the support frame is connected to the driving member, and the other end is connected to the valve core, one end of the elastic member is in contact with the support frame, and the other end is in contact with the valve body; wherein the driving member can drive the support frame to overcome the force of the elastic member and drive the valve core to move to open the channel, and the elastic member can drive the support frame to drive the valve core to move in the opposite direction to close the channel; The driving member is a button structure with a hollow structure, the inner cavity of the driving member serves as a part of the channel, the lower end of the driving member is inserted into the channel of the valve body and can reciprocate along the axis of the channel; or, the driving member and the valve body are connected in a threaded guide manner, and the driving member can rotate in a circumferential direction relative to the valve body, so that the driving member forms an axial reciprocating movement relative to the valve body, thereby driving the valve core to form an axial reciprocating movement, so as to achieve the opening and closing control of the valve; The valve body is provided with a plurality of channels; the plurality of channels respectively penetrate the valve body to connect the inside of the inner package with the outside of the outer package.

2. The pressure-resistant packaging according to claim 1, characterized in that: The outer packaging is composed of multiple components, and the multiple components are connected by detachable assembly.

3. The pressure-resistant packaging according to claim 2, characterized in that: The inner package and the outer package are detachably connected.

4. The pressure-resistant packaging according to claim 1, characterized in that: The valve is detachably connected to the outer package.

5. The pressure-resistant packaging according to claim 1, characterized in that: The valve seat and the valve body are detachably connected, and when the valve seat and the valve body are connected, the valve seat and the valve body are in contact with the inner surface and the outer surface of the outer package respectively.

6. The pressure-resistant packaging according to claim 1, characterized in that: When the driving member is in the form of a button structure with a hollow structure, the switch assembly is further provided with a positioning member; the positioning member is connected to the valve body to limit the position of the driving member relative to the valve body.

7. The pressure-resistant packaging according to claim 6, characterized in that: The positioning member is of L-shaped structure and is fixed on the valve body, and a positioning plate extending radially is provided on the driving member; When it is necessary to control the movement of the driving member to open and close the valve, the driving member is rotated to rotate the positioning plate to a position offset from the positioning member along the circumferential direction of the channel, and then the driving member is reciprocated along the axial direction of the channel; when the driving member moves to the position to open or close the valve, the driving member is rotated to rotate the positioning plate to a position aligned with the positioning member along the axial direction of the channel, so that the positioning member limits the reverse movement of the driving member along the axial direction.

8. The pressure-resistant packaging according to claim 1, characterized in that: When the driving member is in the form of a button structure with a hollow structure, the multiple channels include a first channel, a second channel and a third channel; the driving member includes a joint part respectively connected to the first channel, the second channel and the third channel, and the positions in the valve core that contact the second channel and the third channel all adopt an upward opening structure.

9. The pressure-resistant packaging according to claim 8, characterized in that: The valve core is provided with a plurality of flow holes, and the plurality of flow holes are distributed in a peripheral area of ​​the first channel along a circumferential direction.

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