Liquid storage device, liquid storage method and liquid taking method

Abstract

The liquid storage device comprises a liquid storage body, a liquid outlet assembly and a gas injection assembly, the liquid outlet assembly and the gas injection assembly are arranged at the two ends of the liquid storage body respectively, the interior of the liquid storage body is hollow and provided with a gas-liquid isolation piston, and the interior of the liquid storage body is separated into a liquid storage cavity and an inflation cavity through the gas-liquid isolation piston; when the gas injection assembly injects gas into the inflation cavity, the gas-liquid isolation piston can be pushed to press the liquid storage cavity so that internal liquid can flow out of the liquid outlet assembly, and the liquid outlet assembly and the gas injection assembly are matched with the liquid storage body in the same mode and can be interchanged. The invention further provides a liquid storage method and a liquid taking method of the liquid storage device, according to the liquid storage device, through the modular structure, the symmetrical design of the gas and liquid adjusting bin can be achieved, the liquid taking process after storage initialization is not in contact with air, and the situation that stored liquid is oxidized and volatilized is avoided to the maximum extent.

Description

Technical Field

[0001] The invention belongs to the technical field of gas-filling and liquid-taking, and particularly relates to a liquid storage device, a liquid storage method and a liquid-taking method. Background Art

[0002] In modern life, there are increasingly higher requirements for the storage and use of liquids. Traditional liquid storage devices often have many shortcomings. For example, during the storage process, the liquid is easily exposed to air, resulting in oxidation and volatilization, which affects the quality and performance of the liquid. Especially for some liquids that have high requirements for storage conditions, such as wine, oxidation and volatilization in contact with air can easily affect its taste.

[0003] In addition, the traditional liquid storage device has a relatively simple structural design and limited functions. In the process of storing and taking liquid, complicated operation steps may be required, and due to the limited use scenario of the structure, there are problems such as not being able to take it out as needed after storage, and the device cannot be reused. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, the present application provides a liquid storage device, a liquid storage method and a liquid extraction method to solve the above technical defects.

[0005] According to the first aspect of the present invention, a liquid storage device is proposed, characterized in that it includes a liquid storage body, a liquid outlet assembly and a gas injection assembly, the liquid outlet assembly and the gas injection assembly are respectively arranged at the two ends of the liquid storage body, the interior of the liquid storage body is hollow and is provided with a gas-liquid isolation piston, the gas-liquid isolation piston separates the interior of the liquid storage body into a liquid storage cavity and a gas-filled cavity, and when the gas injection assembly injects gas into the gas-filled cavity, it can push the gas-liquid isolation piston to compress the liquid storage cavity so that the internal liquid flows out from the liquid outlet assembly, and the liquid outlet assembly and the gas injection assembly cooperate in the same manner with the liquid storage body and are interchangeable. The liquid storage device realizes the function of injecting gas into the gas-filled cavity to push the gas-liquid isolation piston so that the liquid flows out from the liquid outlet assembly through the combination of the liquid storage body, the liquid outlet assembly and the gas injection assembly, and the arrangement of the internal gas-liquid isolation piston, and at the same time, the liquid outlet assembly and the gas injection assembly cooperate in the same manner and are interchangeable, which increases the flexibility and convenience of use, and realizes that the liquid extraction process after storage initialization does not contact the air, and avoids liquid oxidation and volatilization.

[0006] In some specific embodiments, the liquid storage body is a hollow cylindrical structure, and the liquid outlet assembly and the gas injection assembly are sealed and fixed to the two ends of the opening of the hollow cylindrical structure by means of threads or buckles. The liquid outlet assembly and the gas injection assembly are sealed and fixed to the two ends of the hollow cylindrical structure by means of threads or buckles, which facilitates installation and disassembly, and improves the reliability and maintainability of the device.

[0007] In some specific embodiments, the liquid storage body is a double-layer structure. The liquid storage body adopts a double-layer structure. On the one hand, it can better protect the internal cavity and prevent external collisions from causing the gas-liquid isolation piston to jam and the chamber medium to leak; on the other hand, the interlayer can play a role in heat preservation and is suitable for temperature-sensitive liquid storage.

[0008] In some specific embodiments, the gas-liquid isolation piston includes a piston body and a sealing ring, wherein the piston body is a disc having a diameter smaller than the inner diameter of the liquid storage body, and the outer edge of the disc is provided with a sealing ring that is sealed against the inner wall of the liquid storage body. The piston body and the sealing ring design of the gas-liquid isolation piston ensure a good seal between the piston and the inner wall of the liquid storage body, prevent the leakage of liquid and gas between the liquid storage cavity and the gas charging cavity, and ensure the normal operation of the device.

[0009] In some specific embodiments, the gas-liquid isolation piston also includes a two-way on-off valve arranged in the middle of the disc, the two-way on-off valve includes a valve core, a sealing plate and a reset elastic body, a through hole is arranged in the middle of the sealing plate, the valve core passes through the through hole and the middle of the valve core is sealed with the through hole, a pair of reset elastic bodies are symmetrically arranged at both ends of the valve core, and the two-way on-off valve is turned on at either end of the valve core when the liquid outlet component is triggered. When the liquid extraction is nearly completed, the two-way on-off valve in the middle of the gas-liquid isolation piston is triggered to be turned on, so that the gas on one side of the air pressure chamber flows into the liquid storage chamber, and the remaining liquid can be completely extracted when the liquid extraction port is at a low position, thereby improving the utilization rate of the liquid. At the same time, after the liquid extraction is completed, the liquid extraction end cover can be opened to restore the sealing state under the action of the reset elastic body, which is convenient for the gas-liquid chamber conversion.

[0010] In some specific embodiments, the liquid outlet assembly includes a switch structure, a liquid outlet head, a liquid outlet body and a liquid outlet valve core structure. A liquid outlet cavity for accommodating the liquid outlet valve core structure is provided in the middle of the liquid outlet body and a protruding connection portion is formed in the middle of the outer surface of the liquid outlet body. The liquid outlet head is sleeved on the protruding connection portion of the liquid outlet body. The switch structure is provided on the liquid outlet head. When the switch structure is actuated, the liquid outlet valve core structure can be triggered to control the conduction or closing of the liquid outlet cavity and the liquid outlet head. The design of the switch structure, liquid outlet head, liquid outlet body and liquid outlet valve core structure of the liquid outlet assembly makes the liquid outlet control more accurate and reliable, and the liquid outlet can be opened or closed at any time as needed, which is convenient for taking liquid.

[0011] In some specific embodiments, the liquid outlet valve core structure includes a valve core fixing seat, a liquid outlet valve core, a shaft sleeve, a return spring and a sealing sleeve. The valve core fixing seat is fixedly arranged on the lower end surface of the liquid outlet cavity. The surface of the valve core fixing seat is hollowed out and provided with a plurality of channels connecting the liquid outlet cavity and the liquid storage cavity. The liquid outlet valve core is fixedly arranged in the middle of the valve core fixing seat. The interior of the shaft sleeve is provided with a valve core cavity for accommodating the liquid outlet valve core. The return spring is arranged between the liquid outlet valve core and the valve core cavity. The sealing sleeve covers the connection between the liquid outlet valve core and the shaft sleeve. The cooperation of the valve core fixing seat, the liquid outlet valve core, the shaft sleeve, the return spring and the sealing sleeve in the liquid outlet valve core structure ensures the stable operation and good sealing of the liquid outlet valve core, reduces the accumulation of impurities, and improves the quality of the liquid outlet and the service life of the device.

[0012] In some specific embodiments, a filter screen cover is detachably provided at the bottom of the liquid outlet assembly, one end of the liquid outlet valve core extends out of the bottom of the valve core fixing seat, and the filter screen cover is detachably matched with one end of the liquid outlet valve core. The detachable filter screen cover at the bottom of the liquid outlet assembly can filter impurities in the liquid to ensure the purity of the outflowing liquid, and the detachable design is convenient for cleaning and replacing the filter screen cover.

[0013] In some specific embodiments, the gas injection assembly is an autonomous gas supply structure, which includes a manual gas injection device and a one-way check valve, the manual gas injection device includes an air bag or a bellows, and a one-way check valve is arranged between the manual gas injection device and the inflation cavity. With this arrangement, gas injection operation is conveniently performed without external gas supply equipment, thereby improving the applicability and portability of the device.

[0014] In some specific embodiments, the manual gas injection device is provided with an air intake check valve, which includes a valve plate and valve ports at the upper and lower ends of the valve plate, and the valve port leading to the air bag end is set as a plum blossom opening. The air intake check valve on the manual gas injection device is set as a plum blossom opening, which improves the efficiency and stability of air intake, prevents gas backflow, and ensures the effect of manual gas injection.

[0015] In some specific embodiments, the gas injection assembly is an external gas supply structure, and the external gas supply structure includes a direct gas supply structure or a gas storage structure. The direct gas supply structure includes a one-way gas inlet nozzle and a pressure relief valve, and the one-way gas inlet nozzle is connected to an external gas charging device; the gas storage structure also includes a sealed chamber, and a pressure reducing valve and a check valve are arranged in the sealed chamber. After the external gas charging device injects gas, it enters the gas charging cavity through the pressure reducing valve and the check valve in turn to reach a preset pressure, and then continues to pressurize and store pressure in the sealed chamber, so that the gas charging cavity can be continuously supplied with gas at a stable pressure without an external pipeline. The external gas supply structure of the gas injection assembly includes a direct gas supply structure or a gas storage structure, which meets the gas supply needs in different usage scenarios. The direct gas supply structure is simple and convenient, and is suitable for occasions with external gas charging devices; the gas storage structure can continuously supply gas at a stable pressure to the gas charging cavity without an external pipeline, which increases the application scenarios and improves the reliability of the device.

[0016] According to a second aspect of the present invention, a liquid storage method is provided, using the liquid storage device as described above, comprising:

[0017] S1: injecting the liquid to be stored into the liquid storage body, and assembling the liquid outlet component and the gas injection component;

[0018] S2: Turn on the switch of the liquid outlet component and inject gas from the gas injection component at the bottom in a vertical state;

[0019] S3: When the liquid to be stored flows out from the liquid outlet head of the liquid outlet assembly, the switch is turned off to isolate the liquid storage cavity from the outside, thereby completing the liquid storage operation.

[0020] According to a third aspect of the present invention, a liquid extraction method is provided, comprising the above-mentioned liquid storage method, and further comprising:

[0021] S4: Turn on the switch of the liquid outlet component, and push the gas-liquid isolation piston through the gas injection component to press the liquid in the liquid storage chamber out;

[0022] S5: After the liquid in the liquid storage cavity is completely taken out, the liquid outlet assembly and the gas injection assembly are removed and cleaned, and then the installation positions of the liquid outlet assembly and the gas injection assembly are adjusted, and S1-S4 are repeated to perform liquid storage and liquid extraction operations.

[0023] Compared with the prior art, the beneficial results of the present invention are:

[0024] 1. Prevent liquid oxidation and volatilization. The liquid storage body is separated into a liquid storage cavity and a gas filling cavity by a gas-liquid isolation piston, so that the liquid does not contact the air during the storage and liquid extraction process, thus avoiding the oxidation and volatilization of the stored liquid to the greatest extent and ensuring the quality and performance of the liquid;

[0025] 2. Flexible structural design. The liquid outlet assembly and the gas injection assembly cooperate with the liquid storage body in the same way and are interchangeable, which increases the flexibility of use. The position of the gas and liquid tank can be adjusted according to actual needs, which is convenient for use and reduces the damage to the piston sealing ring caused by frequent disassembly and assembly. The liquid storage body adopts a double-layer structure, which can better protect the inner cavity, prevent external collisions from causing piston jams and chamber medium leakage, and also play a role in heat preservation, meeting the storage temperature requirements of different liquids;

[0026] 3. Accurate liquid discharge control and filtering function. The switch structure of the liquid discharge component and the liquid discharge valve core structure make the liquid discharge control more accurate and reliable, and the liquid discharge port can be opened or closed at any time. The removable filter screen at the bottom of the liquid discharge port can filter impurities in the liquid, ensure the purity of the outflowing liquid, and prevent the fluid from carrying foreign matter and causing the sealing failure of the internal valve structure;

[0027] 4. Diversified gas injection methods. The gas injection components are divided into autonomous gas supply structure and external gas supply structure. The autonomous gas supply structure includes a manual gas injection device, which is convenient for gas injection operation without external gas supply equipment, improving the applicability and portability of the device. The external gas supply structure is further divided into a direct gas supply structure and a gas storage structure, which can meet the gas supply needs in different usage scenarios and increase the application scenarios;

[0028] 5. Efficient liquid extraction and liquid utilization. When the liquid extraction is nearly completed, the two-way on-off valve of the gas-liquid isolation piston is turned on, and the gas on one side of the air pressure chamber flows into the liquid storage chamber, so that the remaining liquid can be completely removed when the liquid extraction port is at a low position, thereby improving the utilization rate of the liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate the embodiments and are used together with the description to explain the principles of the present invention. It will be easy to recognize other embodiments and many expected advantages of the embodiments because they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale with each other. The same reference numerals refer to corresponding similar parts.

[0030] Figure 1 is a cross-sectional schematic diagram of a liquid storage device according to a first embodiment of the present invention;

[0031] Figure 2 is a cross-sectional schematic diagram of a liquid outlet component according to a specific embodiment of the present invention;

[0032] Figure 3 is a cross-sectional schematic diagram of a gas injection assembly according to a specific embodiment of the present invention;

[0033] Figure 4 is a cross-sectional schematic diagram of a liquid storage device according to a second embodiment of the present invention;

[0034] Figure 5 is a cross-sectional schematic diagram of a liquid storage device according to a third embodiment of the present invention;

[0035] Figure 6 is a cross-sectional schematic diagram of a liquid storage device according to a fourth embodiment of the present invention;

[0036] Figure 7 is a schematic cross-sectional view of a liquid storage device according to a fifth embodiment of the present invention;

[0037] Figure 8 is a flow chart of a liquid storage method according to one embodiment of the present invention;

[0038] Fig. 9 is a flow chart of a liquid extraction method according to an embodiment of the present invention.

[0039] The meaning of the numbers in the figure: 1-liquid storage body, 2-liquid outlet assembly, 21-liquid outlet body, 22-liquid outlet head, 23-switch structure, 231-switch valve core, 24-liquid outlet valve core structure, 241-liquid outlet valve core, 242-shaft sleeve, 243-reset spring, 244-sealing sleeve, 25-valve core fixing seat, 26-filter screen cover, 27-liquid extraction head, 271-liquid extraction head valve core, 3-gas injection assembly, 31-gas injection body, 32-air bag, 33-one-way check valve, 34-one-way air inlet valve, 341-external air inlet Air valve port, 342-valve plate, 343-airbag end valve port, 4-gas-liquid isolation piston, 41-piston body, 42-sealing ring, 43-sealing plate, 44-valve core, 45-reset elastomer, 5-external inflation connector, 310-bellows injection structure, 320-external air supply structure I, 321-one-way air inlet nozzle, 322-pressure relief valve, 330-external air supply structure II, 331-sealed chamber, 332-one-way air inlet nozzle, 333-pressure relief valve, 334-pressure reducing valve, 335-inflation cavity one-way air inlet valve. DETAILED DESCRIPTION

[0040] In the following detailed description, reference is made to the accompanying drawings, which form a part of the detailed description and are shown by illustrative specific embodiments in which the present invention can be put into practice. To this end, directional terms, such as "top", "bottom", "left", "right", "up", "down", etc., are used with reference to the orientation of the figures described. Because the parts of the embodiments can be positioned in several different orientations, directional terms are used for the purpose of illustration and are by no means limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present invention. Therefore, the following detailed description should not be adopted in a limiting sense, and the scope of the present invention is defined by the appended claims.

[0041] The present invention provides a liquid storage device. Figure 1 FIG. 4 shows a cross-sectional schematic diagram of a liquid storage device according to a first embodiment of the present invention. Figure 1 As shown, the liquid storage device includes three main modular components: a liquid storage body 1, a liquid outlet component 2 and a gas injection component 3. The liquid outlet component 2 and the gas injection component 3 are installed at both ends of the liquid outlet body 1, and the installation positions of the liquid outlet component 2 and the gas injection component 3 can be interchanged to realize the conversion of the internal gas-liquid chamber, which is convenient to use and reduces the damage to the internal piston sealing ring caused by frequent disassembly and assembly. The following is a detailed description of each modular component:

[0042] In a specific embodiment, the liquid storage body 1 is a cylindrical structure with a hollow interior and straight through, and functional and detachable sealing end caps are symmetrically arranged at both ends of its opening, and the end caps can be fixed with the liquid storage body 1 by means of a snap-fit ​​or threaded connection. A gas-liquid isolation piston 4 that can move back and forth is also arranged inside the liquid storage body 1, and the gas-liquid isolation piston 4 divides the internal space of the liquid outlet body 1 into an air-filled cavity and a liquid storage cavity, and the air-filled cavity and the liquid storage cavity are determined by the installation positions of the corresponding liquid outlet assembly 2 and the gas injection assembly 3. When the installation positions of the liquid outlet assembly 2 and the gas injection assembly 3 are interchanged, the air-filled cavity and the liquid storage cavity are also interchanged.

[0043] In a specific embodiment, the liquid storage body 1 can be a single-layer or double-layer structure. The double-layer structure can better protect the inner cavity and prevent external collisions from causing the gas-liquid isolation piston 4 to get stuck and the chamber medium to leak. At the same time, the interlayer can also play a role in heat preservation.

[0044] In a specific embodiment, the gas-liquid isolation piston 4 separates the interior of the liquid storage body 1 into a liquid storage cavity and an air-filled cavity, preventing liquid and gas from leaking between the two cavities and ensuring the normal operation of the device. The gas-liquid isolation piston 4 includes a piston body 41, a sealing ring 42, a sealing sheet 43, a valve core 44 and a reset elastic body 45. The piston body 41 is a disc with a diameter smaller than the inner diameter of the liquid storage body 1, and a sealing ring 42 is provided on the outer edge to seal with the inner wall of the liquid storage body 1. The sealing sheet 43 is arranged in the middle of the disc, and a through hole is arranged in the middle. The valve core 44 passes through the through hole and the middle part is sealed with the through hole. A pair of reset elastic bodies 45 are symmetrically arranged at both ends of the valve core 44. In the static storage state, the valve core 44 passes through the hole and forms a seal with it by interference fit. When the liquid extraction is nearly completed, when either end of the valve core 44 triggers the liquid outlet assembly 2, the two-way on-off valve is turned on, so that the gas on one side of the air-filled cavity flows into the liquid storage cavity, so that the remaining liquid can be completely removed when the liquid extraction port is low. After the valve has been drained, the end cover is opened to restore the sealing state under the action of the reset elastic body 45. In this way, the gas-liquid chamber can be switched by swapping the end covers, which is convenient to use and reduces the damage to the piston sealing ring caused by frequent disassembly and assembly.

[0045] Figure 2 FIG. 1 is a cross-sectional schematic diagram of a liquid outlet assembly according to a specific embodiment of the present invention, as shown in FIG. Figure 2As shown, the liquid outlet assembly 2 includes a liquid outlet body 21, a liquid outlet head 22, a switch structure 23 and a liquid outlet valve core structure 24. A liquid outlet cavity is provided in the middle of the liquid outlet body 21 for accommodating the liquid outlet valve core structure 24. A protruding connection portion is formed in the middle of the outer surface of the liquid outlet body, and a through hole is provided on the top of the connection portion for connecting to the liquid outlet cavity. The liquid outlet head 22 is sleeved on the protruding connection portion and sealed with the connection. The liquid outlet head 22 is hollow inside and a liquid outlet nozzle connected to the inside is provided on one side. The switch structure 23 is provided on the liquid outlet head 22. When in operation, the liquid outlet valve core structure 24 can be triggered by the switch valve core 231 to control the conduction or closing of the liquid outlet cavity and the liquid outlet nozzle of the liquid outlet head 22.

[0046] In a specific embodiment, the liquid outlet valve core structure 24 includes a liquid outlet valve core 241, a shaft sleeve 242, a reset spring 243, a sealing sleeve 244 and a valve core fixing seat 25. The valve core fixing seat 25 is fixedly arranged on the lower end surface of the liquid outlet cavity, and a plurality of channels connecting the liquid outlet cavity and the liquid storage cavity are hollowed out on its surface. The liquid outlet valve core 241 is fixedly arranged in the middle of the valve core fixing seat 25 (which can be matched by threaded connection), and the shaft sleeve 242 is provided with a valve core cavity for accommodating the liquid outlet valve core 241 inside, and the reset spring 243 is arranged between the liquid outlet valve core 241 and the valve core cavity, and the sealing sleeve 244 covers the connection between the liquid outlet valve core 241 and the shaft sleeve 242, so that the valve core cavity of the liquid outlet valve core 241, the reset spring 243 and the shaft sleeve 242 are separated from the flow channel to avoid affecting the quality of the internal liquid storage. A filter screen cover 26 is detachably provided at the bottom of the liquid outlet assembly 2, one end of the liquid outlet valve core 241 extends out of the bottom of the valve core fixing seat 25, and the filter screen cover 26 is detachably matched with one end of the liquid outlet valve core 241 (it can also be connected by threaded connection, which is convenient for loading and unloading and maintenance). The filter screen cover 26 can filter impurities in the liquid, ensure the purity of the outflowing liquid, and prevent the fluid from carrying foreign matter and causing the sealing failure of the internal valve structure.

[0047] Figure 3 A cross-sectional schematic diagram of a gas injection assembly according to a specific embodiment of the present invention is shown. Figure 3 As shown, the gas injection assembly in this embodiment is an airbag-type self-supplying structure, which specifically includes a gas injection body 31, an airbag 32, a one-way check valve 33 and a one-way air inlet valve 34. The airbag 32 is assembled on the gas injection body 31, and is connected to the gas-filled cavity inside the liquid storage body 1 through the one-way check valve 33 arranged on the gas injection body 31. The one-way air inlet valve 34 is arranged at the matching position of the airbag 32 and the gas injection body 31. When the gas injection assembly 3 injects gas into the gas-filled cavity, the gas enters the gas-filled cavity through the one-way check valve 33, pushes the gas-liquid isolation piston 4 to compress the liquid storage cavity, and makes the internal liquid flow out from the liquid outlet assembly 2.

[0048] In a specific embodiment, the gas injection body 31 is composed of two parts, including a bottom plate and a side cover, which are snap-fitted and press the airbag 32 into the slot formed by the two parts. The side cover pressure plate is provided with an external air intake valve port 341 and a cavity for accommodating a valve plate 342. The size of the external air intake valve port 341 is smaller than the valve plate 342. The corresponding part of the airbag 32 is provided with an airbag end valve port 343. The airbag end valve port 343 is changed to a plum blossom opening style, which can improve the air intake efficiency and stability, prevent gas backflow, and ensure the manual gas injection effect. The bottom plate is provided with a groove connected to the inside of the airbag 32 at the corresponding valve port to allow gas to enter the inside of the airbag 32.

[0049] Figure 4 FIG. 4 shows a cross-sectional schematic diagram of a liquid storage device according to a second embodiment of the present invention. Figure 4 As shown, Figure 1 The liquid storage devices shown are similar and both adopt an autonomous air supply structure. The difference is that a bellows air injection structure 310 is adopted in this embodiment. A return spring is arranged inside the bellows structure of the bellows air injection structure 310, which can automatically reset after being pressed. A positioning guide groove is arranged on the side cover, and a one-way air intake valve structure is arranged on the bottom cover of the bellows. In order to avoid the one-way air intake valve being blocked by the hand when pressing the inflation operation, the positioning guide groove is used as an air intake channel (the gap between the bottom cover and the guide groove) to be connected to the one-way air intake valve. The positioning guide groove also has the function of balancing the air pressure in the internal space of the bellows to avoid affecting the freedom of extension and contraction of the bellows.

[0050] In other embodiments of the present application, in addition to the autonomous gas supply structure, an injection component with an external gas supply structure may also be used, such as Figure 5 A cross-sectional schematic diagram of a liquid storage device according to a third embodiment of the present invention is shown; Figure 6 FIG. 4 shows a cross-sectional schematic diagram of a liquid storage device according to a fourth embodiment of the present invention. Figure 5 In the embodiment, the external air supply structure I 320 includes a one-way air inlet nozzle 321 and a pressure relief valve 322. The one-way air inlet nozzle 321 is connected to the external inflation device through the external inflation connector 5 to provide gas for the inflation cavity, and the pressure relief valve 322 plays a safety protection role. The direct supply air supply structure can also use an external air injection device to pressurize the air pressure chamber to store air in an appropriate amount without connecting the air inlet pipeline to meet the needs of short-term liquid extraction. Figure 6In the embodiment, the external gas supply structure II 330 includes a one-way air inlet nozzle 332 and a pressure relief valve 333, and is also provided with a sealed chamber 331. A pressure relief valve 334 and a one-way air inlet valve 335 for the inflatable cavity are provided inside the sealed chamber 331. Both external gas supply structures are provided with a safety pressure relief valve to avoid the potential safety hazard of excessive inflation pressure. When in use, a gas with a relatively high pressure is first injected through the one-way air inlet nozzle 332. The gas adjusted by the pressure relief valve 334 enters the inflatable cavity through the one-way air inlet valve 335 for the inflatable cavity. After the inflatable cavity reaches the preset pressure, the input is stopped. Continuing to inject gas into the sealed chamber 331 can achieve the purpose of pressure accumulation. In the absence of an external pipeline, the sealed chamber 331 can continuously supply gas to the inflatable cavity at a stable pressure, thereby increasing the application scenarios. Due to the gas-liquid isolation effect of the gas-liquid isolation piston 4, clean air can be input into the inflatable cavity. If the preservation requirements are high, inert gases such as carbon dioxide, nitrogen or argon or their mixed gases can be used.

[0051] Figure 7 FIG. 4 is a cross-sectional schematic diagram of a liquid storage device according to a fifth embodiment of the present invention. Figure 5 As shown, another modular liquid collection head 27 is adopted in this embodiment, including a main body and a trigger part. The main body is sleeved on the raised connecting part of the liquid outlet body 2. The hollow interior of the main body can be connected with the liquid outlet cavity. The trigger part is sleeved on the main body and sealed with it (through the sealing ring structure at the fitting position), and an elastic reset part can be provided at the fitting position between the two. A liquid collection head valve core 271 is provided on the trigger part. The outer circumferential surface of the trigger head is provided with a lateral limit extension protrusion, which can cooperate with an external bracket or a fixed seat when the liquid storage device is inverted. When in use, the bottom of the tank body can be directly pressed, and the liquid collection head valve core 271 contacts the liquid outlet valve core structure 24 to realize the conduction of the liquid outlet channel. The liquid in the liquid storage cavity can flow out from the liquid outlet on the trigger part to realize automatic liquid collection operation. The gas injection component adopted in this embodiment is the same as Figure 6 The same external gas supply structure II 330 as in the embodiment may also adopt the gas injection assembly 2 in the other aforementioned embodiments, and can also achieve the above technical effects.

[0052] Continue to refer Figure 8 , Figure 8 FIG. 4 shows a flow chart of a liquid storage method according to an embodiment of the present invention. Figure 8 As shown, the liquid storage method comprises the following steps:

[0053] S1: injecting the liquid to be stored into the liquid storage body, and assembling the liquid outlet component and the gas injection component;

[0054] S2: Turn on the switch of the liquid outlet component and inject gas from the gas injection component at the bottom in a vertical state;

[0055] S3: When the liquid to be stored flows out from the liquid outlet head of the liquid outlet assembly, the switch is turned off to isolate the liquid storage cavity from the outside, thereby completing the liquid storage operation.

[0056] The gas-liquid isolation piston in the liquid storage body can movably separate the tank body into two chambers: a liquid storage chamber and an air filling chamber; turn on the switch of the top liquid intake port, inject air from the bottom in a vertical state, and when liquid flows out of the liquid outlet nozzle, it indicates that the exhaust in the liquid storage chamber is completed; turn off the switch, and the liquid storage chamber originally connected to the outside forms an enclosed space, which is filled with liquid and isolated from the outside. Therefore, the liquid will not be oxidized by contact with air, and volatilization is also reduced, which is beneficial to the preservation of the liquid.

[0057] Fig. 9 FIG. 4 shows a flow chart of a method for taking liquid according to an embodiment of the present invention. Fig. 9 As shown, the liquid extraction method, based on the aforementioned liquid storage method, further includes:

[0058] S4: Turn on the switch of the liquid outlet component, and push the gas-liquid isolation piston through the gas injection component to press the liquid in the liquid storage chamber out;

[0059] S5: After the liquid in the liquid storage cavity is completely taken out, the liquid outlet assembly and the gas injection assembly are removed and cleaned, and then the installation positions of the liquid outlet assembly and the gas injection assembly are adjusted, and S1-S4 are repeated to perform liquid storage and liquid extraction operations.

[0060] In daily use, there is no restriction on the liquid taking posture of the liquid storage body. After injecting air into the inflation cavity and opening the switch of the liquid taking port, the liquid can be quickly taken out under the push of air pressure. During the liquid taking process, the liquid in the liquid storage cavity does not contact the outside air, which is conducive to continuous preservation.

[0061] Obviously, those skilled in the art can make various modifications and changes to the embodiments of the present invention without departing from the spirit and scope of the present invention. In this way, if these modifications and changes are within the scope of the claims of the present invention and their equivalents, the present invention is also intended to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are recorded in mutually different dependent claims does not indicate that the combination of these measures cannot be used to profit. Any reference numerals in the claims should not be considered to limit the scope.

Claims

1. A liquid storage device, characterized in that: It includes a liquid storage body, a liquid outlet component and an air injection component, wherein the liquid outlet component and the air injection component are respectively arranged at two ends of the liquid storage body, the interior of the liquid storage body is hollow and is provided with a gas-liquid isolation piston, the gas-liquid isolation piston separates the interior of the liquid storage body into a liquid storage cavity and a gas charging cavity, and when the gas injection component injects gas into the gas charging cavity, it can push the gas-liquid isolation piston to press the liquid storage cavity so that the internal liquid flows out from the liquid outlet component, and the liquid outlet component and the air injection component cooperate with the liquid storage body in the same way and are interchangeable.

2. A liquid storage device according to claim 1, characterized in that: The liquid storage body is a hollow cylindrical structure, and the liquid outlet assembly and the gas injection assembly are sealed and fixed at both ends of the opening of the hollow cylindrical structure by means of threads or buckles.

3. A liquid storage device according to claim 1, characterized in that: The liquid storage body is a double-layer structure.

4. A liquid storage device according to claim 1, characterized in that: The gas-liquid isolation piston comprises a piston body and a sealing ring. The piston body is a disc having a diameter smaller than the inner diameter of the liquid storage body. The outer edge of the disc is arranged on the sealing ring which is sealed and matched with the inner wall of the liquid storage body.

5. A liquid storage device according to claim 4, characterized in that: The gas-liquid isolation piston also includes a two-way on-off valve arranged in the middle of the disc, and the two-way on-off valve includes a valve core, a sealing plate and a reset elastomer. A through hole is provided in the middle of the sealing plate, the valve core passes through the through hole and the middle of the valve core is sealed with the through hole, a pair of reset elastomers are symmetrically arranged at both ends of the valve core, and the two-way on-off valve is turned on at either end of the valve core when the liquid outlet component is triggered.

6. A liquid storage device according to claim 1, characterized in that: The liquid outlet component includes a switch structure, a liquid outlet head, a liquid outlet body and a liquid outlet valve core structure. A liquid outlet cavity for accommodating the liquid outlet valve core structure is provided in the middle of the liquid outlet body, and a protruding connecting portion is formed in the middle of the outer surface of the liquid outlet body. The liquid outlet head is sleeved on the protruding connecting portion of the liquid outlet body. The switch structure is provided on the liquid outlet head. When the switch structure is actuated, it can trigger the liquid outlet valve core structure to control the conduction or closing of the liquid outlet cavity and the liquid outlet head.

7. A liquid storage device according to claim 6, characterized in that: The liquid outlet valve core structure includes a valve core fixing seat, a liquid outlet valve core, a shaft sleeve, a return spring and a sealing sleeve. The valve core fixing seat is fixedly arranged on the lower end surface of the liquid outlet cavity. The surface of the valve core fixing seat is hollowed out and has multiple channels connecting the liquid outlet cavity and the liquid storage cavity. The liquid outlet valve core is fixedly arranged in the middle of the valve core fixing seat. The interior of the shaft sleeve is provided with a valve core cavity for accommodating the liquid outlet valve core. The return spring is arranged between the liquid outlet valve core and the valve core cavity. The sealing sleeve covers the connection between the liquid outlet valve core and the shaft sleeve.

8. A liquid storage device according to claim 7, characterized in that: A filter screen cover is detachably provided at the bottom of the liquid outlet assembly, one end of the liquid outlet valve core extends out of the bottom of the valve core fixing seat, and the filter screen cover is detachably matched with one end of the liquid outlet valve core.

9. The liquid storage device according to claim 1, characterized in that: The gas injection assembly is an autonomous gas supply structure, which includes a manual gas injection device and a one-way check valve. The manual gas injection device includes an air bag or a bellows, and the one-way check valve is arranged between the manual gas injection device and the inflation cavity.

10. A liquid storage device according to claim 9, characterized in that: The manual air injection device is provided with an air intake check valve, which includes a valve plate and valve ports at the upper and lower ends of the valve plate, and the valve port leading to the air bag end is set as a plum blossom opening.

11. A liquid storage device according to claim 9, characterized in that: The gas injection assembly is an external gas supply structure, which includes a direct gas supply structure or a gas storage structure. The direct gas supply structure includes a one-way gas inlet nozzle and a pressure relief valve, and the one-way gas inlet nozzle is connected to an external gas charging device; the gas storage structure also includes a sealed chamber, and a pressure reducing valve and a check valve are arranged in the sealed chamber. After the external gas charging device injects gas, the gas enters the gas charging cavity through the pressure reducing valve and the check valve in turn, and after reaching a preset pressure, the sealed chamber is continuously pressurized and stored, so that gas can be continuously supplied to the gas charging cavity at a stable pressure without an external pipeline.

12. A liquid storage method, using the liquid storage device according to any one of claims 1 to 11, characterized in that: include: S1: injecting the liquid to be stored into the liquid storage body, and assembling the liquid outlet assembly and the gas injection assembly; S2: Turn on the switch of the liquid outlet component, and inject gas from the gas injection component at the bottom in a vertical state; S3: When the liquid to be stored flows out from the liquid outlet head of the liquid outlet assembly, the switch is closed to isolate the liquid storage cavity from the outside, thereby completing the liquid storage operation.

13. A liquid extraction method, comprising the liquid storage method according to claim 12, characterized in that: Also includes: S4: Turn on the switch of the liquid outlet component, inject gas through the gas injection component to push the gas-liquid isolation piston to press the liquid in the liquid storage cavity out; S5: After the liquid in the liquid storage cavity is completely taken out, the liquid outlet assembly and the gas injection assembly are removed and cleaned, and then the installation positions of the liquid outlet assembly and the gas injection assembly are swapped, and S1-S4 are repeated to perform liquid storage and liquid extraction operations.

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