Sealed vacuum detachable extractor

Abstract

This invention belongs to the technical field of brewing devices and specifically discloses a sealed vacuum detachable brewing device. The device includes a first container, a second container, a filter, and an end cap, and can be used to brew coffee powder, tea powder, etc. When extract and liquid are poured into the liquid storage compartment of the second container and the air in the chamber is extracted through the air vent, the air pressure in the chamber becomes lower than that in the liquid storage compartment. Due to the difference in air pressure, the liquid separates from the extract and flows into the chamber through the filtering structure, while the extract is filtered by the filtering structure and cannot pass through. Using negative pressure increases the extraction rate and significantly improves the extraction efficiency. An end cap is attached to the top of the second container, and the end cap covers the opening of the liquid storage compartment, achieving a sealed storage effect. The sealed vacuum detachable brewing device can be placed in a refrigerator for low-temperature brewing.

Description

[Technical Field]

[0001] The present invention relates to the technical field of brewing devices, and more particularly to a sealed vacuum detachable brewing device. [Background technology]

[0002] Extraction is also called solvent extraction or liquid-liquid extraction. Extraction refers to the extraction of components in a mixture due to the different dissolution rates of each component in the solvent. Extraction refers to the transfer of a solute substance from one solvent to another due to the difference in solubility or partition coefficient between two solvents, where the substance is insoluble (or only slightly soluble) in each other. Extraction is a method used to purify compounds in organic chemistry laboratories. Extraction can extract a desired substance from a solid or liquid mixture.

[0003] Extractors are commonly used in coffee machines. Extractors can perform either hot or cold extraction of coffee powder. Hot extraction involves pouring hot water over ground coffee powder to soak it, improving extraction efficiency. However, pouring hot water over coffee powder can decompose the tannic acid in the coffee, potentially resulting in a poor coffee taste. Cold extraction involves soaking ground coffee powder in cold water. Cold extraction completely prevents the tannic acid in the coffee from decomposing because the coffee powder does not come into direct contact with hot water. This allows the coffee to retain its pure flavor and avoid any acidity. Therefore, consumers who desire a pure coffee flavor typically choose cold extraction.

[0004] The extraction device is an important device for low-temperature coffee extraction. A commonly used low-temperature coffee extraction device can be found in the coffee machine extraction device disclosed in Chinese patent publication number CN104510351A. The coffee machine extraction device includes a support plate, a rotary frame, a positioning ring, and a hydrocylinder, arranged vertically. In the coffee machine extraction device, an extraction chamber is mounted on the rotary frame, a positioning ring return spring is mounted on the lower end of the positioning ring, and a snap ring and snap ring return spring are mounted on the upper end of the extraction chamber. A pair of hooks are formed on the snap ring, a contact portion is formed on the outer wall of the snap ring, and a hook connection portion is formed on the positioning ring to connect with the hooks. A rotary rod is mounted on the support plate and contacts the contact portion, and a torsional spring is mounted on the rotary rod to return the rotary rod. When the rotary frame rotates in the open direction, the rotary rod can release the hook and the hook coupling part from coupling, and then the positioning ring can return to its original position by the elastic force of the return spring.

[0005] The above-mentioned brewing device has a complex structure including a support plate, a rotating frame, a positioning ring, and a hydraulic cylinder, making it difficult to disassemble and clean the brewing device. Furthermore, it takes a long time to cold-brew coffee using the above-mentioned brewing device. When a conventional brewing device is placed in a refrigerator for cold-brewing, the opening of the brewing device must be covered with a layer of plastic wrap to ensure airtight storage.

[0006] Therefore, improvements and modifications to the prior art are required. Summary of the Invention [Problem to be solved by the invention]

[0007] In order to solve the drawbacks of the prior art, the present invention aims to provide a sealed vacuum detachable brewing device, thereby solving the problems of the prior art brewing devices, which are not convenient to disassemble and clean, and cannot be stored in a sealed state. [Means for solving the problem]

[0008] The sealed vacuum detachable extractor of the present invention includes a first container, a second container, a filter element, an end cap, and a vacuum generator. The first container has a chamber for storing liquid. The second container is detachably attached to the top of the first container, and the second container has an air extraction passage and a liquid storage compartment that are connected vertically. The air extraction passage and the liquid storage compartment are both connected to the chamber. The filter element is detachably attached to the back side of the second container. The filter element has a filtering structure that is attached to the bottom of the liquid storage compartment. The end cap is detachably attached to the top of the second container. An air vent 41 is formed on the end cap, and the air vent is connected to the air extraction passage. The vacuum generator is detachably attached to the top of the end cap. The air extraction end of the vacuum generator faces the air vent, and the air vent 41, the air extraction passage, and the chamber are connected vertically in sequence, forming a passage through which air can flow.

[0009] Specifically, a first sealing structure is installed between the vacuum generator and the end cap.

[0010] Specifically, a second sealing structure is installed between the air extraction passage and the end cap.

[0011] Specifically, a third sealing structure is installed between the first container and the second container.

[0012] Specifically, the flow dividing part further includes an inner lid, the inner lid including a lid portion and a cylindrical portion formed in the center of the upper end of the lid portion, and the upper end of the cylindrical portion is in communication with the air extraction passage.

[0013] Specifically, the sealed vacuum detachable extractor is further provided with a drainage hole structure, and when the air pressure in the chamber is lower than the air pressure in the liquid storage section, the liquid in the liquid storage section flows toward the diverter element, and the diverter element diverges the liquid into the chamber.

[0014] Specifically, the drain structure includes a one-way valve.

[0015] Specifically, the sealed vacuum detachable extraction device further includes a diversion component, which is detachably attached to the bottom of the second container to divert the liquid flowing from the liquid storage section.

[0016] Specifically, the flow dividing element includes a main body and two liquid guide walls. A guide recess recessed downward is formed at the upper end of the main body. A first guide passage for guiding liquid is formed between the two liquid guide walls. A second guide passage is formed by each of the liquid guide walls, and the second guide passage and the first guide passage are connected to each other, guiding liquid inside. A through-type drain hole is formed at the center of the second guide passage at its lower end. [Effects of the Invention]

[0017] The sealed vacuum detachable brewing device of this invention can be used to brew coffee powder, tea powder, etc. When the extract and liquid are poured into the liquid storage compartment of the second container and the air in the chamber is extracted through the vent, the air pressure in the chamber becomes lower than that in the liquid storage compartment. Due to the difference in air pressure, the liquid separates from the extract and flows into the chamber through the filtering structure, while the extract is unable to pass through the filtering structure. Using negative pressure increases the extraction rate and significantly improves the extraction efficiency. A cap is attached to the top of the second container, and the cap covers the opening of the liquid storage compartment, achieving a sealed storage effect. The sealed vacuum detachable brewing device can be placed in a refrigerator for low-temperature brewing. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a cross-sectional view showing the structure of a sealed vacuum detachable extractor according to a first embodiment of the present invention; [Figure 2] 4 is a cross-sectional view showing the structure of a sealed vacuum detachable extractor according to a second embodiment of the present invention; FIG. [Figure 3] 4 is a cross-sectional view of a detachable vacuum-sealed extractor according to a second embodiment of the present invention, taken along the axis of the extractor; FIG. [Figure 4] 10 is a cross-sectional view showing the assembly structure of the second container and the filtering component of the sealed vacuum detachable extractor according to the second embodiment of the present invention; FIG. [Figure 5] 10 is a cross-sectional view showing the assembly structure of the second container and the filtering component of the sealed vacuum detachable extractor according to the third embodiment of the present invention. [Figure 6] 10 is a cross-sectional view showing the drain structure of the second container of the sealed vacuum detachable extractor according to the fourth embodiment of the present invention, which is composed of a drain hole and a valve. [Figure 7] 10 is a cross-sectional view showing a conical container as the first container of a sealed vacuum detachable brewing device according to a fifth embodiment of the present invention. [Figure 8] FIG. 2 is a perspective view showing a flow dividing component of a sealed vacuum detachable extractor according to a second embodiment of the present invention; [Figure 9] 1 is a plan view of a flow-diverting component of a sealed vacuum detachable extractor according to a second embodiment of the present invention, where the arrows in the drawing indicate the direction of liquid flow. [Figure 10] FIG. 10 is a diagram showing the structure of the cross section AA of FIG. [Figure 11] FIG. 6 is a cross-sectional view showing the assembled structure of an end cap, a second container, a filtering component, an inner cap, and a flow dividing component of a sealed vacuum detachable extractor according to a sixth embodiment of the present invention. [Figure 12] FIG. 10 is a perspective view showing the inner cover and the flow dividing element of the sealed vacuum detachable extractor according to the sixth embodiment of the present invention. [Figure 13]6 is a plan view showing a flow dividing component of a sealed vacuum detachable extractor according to a sixth embodiment of the present invention; FIG. [Figure 14] FIG. 7 is a cross-sectional view showing the assembled structure of an end cap, a second container, a filtering component and a dividing component of a sealed vacuum detachable extractor according to a seventh embodiment of the present invention. [Figure 15] 7 is a plan view showing the flow dividing element of a sealed vacuum detachable extractor according to the seventh embodiment of the present invention; FIG. DETAILED DESCRIPTION OF THE INVENTION

[0019] The present invention provides a sealed vacuum detachable extractor. In order to more clearly explain the purpose, technical features, and effects of the present invention, the present invention will be described in more detail below with reference to the following examples. It should be noted that the following specific examples are for illustrative purposes only and are not intended to limit the present invention.

[0020] It should be noted that the directions or positions defined by terms such as "upper, lower, front, rear, right, left" used in the specification of the present invention represent directions or positions on the drawings. They are intended to explain the matters of the present invention, and do not explicitly or implicitly indicate a specific direction or position of a device or part, and are not intended to limit the present invention with such terms.

[0021] Example 1 As shown in FIG. 1, an embodiment of the present invention discloses a sealed vacuum-type detachable extraction device. The sealed vacuum-type detachable extraction device includes a first container 10, a second container 20, a filter element 30, an end cap 40, and a vacuum generator 50. The first container 10 has a chamber 11 for storing liquid. The second container 20 is detachably attached to the top of the first container 10. The second container 20 includes an air extraction passage 21 and a liquid storage section 22 that are connected vertically. Both the air extraction passage 21 and the liquid storage section 22 are connected to the chamber 11. The filter element 30 is detachably attached to the back side of the second container 20. The filter element 30 includes a filter structure 31, which is attached to the bottom of the liquid storage section 22. The end cap 40 is detachably attached to the top of the second container 20. An air vent 41 is formed on the end cover 40, and the air vent 41 is connected to the air extraction passage 21. A vacuum generator 50 is detachably attached to the upper end of the end cover 40. The air extraction end of the vacuum generator 50 faces the air vent 41, and the air vent 41, air extraction passage 21, and chamber 11 are connected in the vertical direction, forming a passage through which air can flow.

[0022] The sealed vacuum detachable brewing device of this embodiment can be used to brew coffee powder, tea powder, etc. After an extract (e.g., coffee powder, tea powder, etc.) is introduced into the liquid storage section 22 of the second container 20, a predetermined proportion of liquid (e.g., water, milk, etc.) is added, causing the extract to settle to the bottom of the second container 20. In this case, air is extracted from the chamber 11 through the air vent 41, causing the air pressure in the chamber 11 to be lower than that in the liquid storage section 22. Due to the difference in air pressure, the liquid separates from the extract and then flows into the chamber 11 through the filtering structure 31. In this case, the extract cannot pass through the filtering structure 31 due to filtration. Using negative pressure can increase the extraction speed of the extract and significantly improve extraction efficiency.

[0023] In the vacuum-sealed, removable extractor of this embodiment, an end cap 40 is attached to the top of the second container 20, and the end cap 40 covers the opening of the liquid storage compartment 22, thereby achieving a sealed storage effect. After the end cap 40 is attached to the top of the second container 20, the vacuum-sealed, removable extractor can be placed in a refrigerator to perform cold extraction of a desired substance.

[0024] In the sealed vacuum detachable brewing device of this embodiment, a vacuum generator 50 is detachably attached to the upper end of the end cover 40, with the air extraction end of the vacuum generator 50 facing the vent hole 41. Activating the vacuum generator 50 extracts air from the vent hole 41. The vent hole 41 communicates with the air extraction passage 21, and the air extraction passage 21 communicates with the chamber 11, so that the air pressure in the chamber 11 can be quickly reduced to a level lower than that in the liquid storage section 22. In this case, negative pressure is applied to the liquid, thereby improving the extraction speed.

[0025] Example 2 As shown in Figures 2, 3, 4, 8, 9, and 10, the sealed vacuum type detachable extractor of Example 2 not only includes all the features of Example 1, but also has the following additional structure compared to Example 1. A contact tip protruding downward is formed at the bottom of the vacuum generator 50. In this embodiment, to improve the stability of the vacuum generator 50 when attached to the end cap 40, a positioning recess 43 is formed at the top of the end cap 40 to which the bottom of the vacuum generator 50 is attached. A vent hole 41 is formed at the bottom of the positioning recess 43. By adopting this structure, the attached state of the vacuum generator 50 can be intuitively observed when attaching the vacuum generator 50, thereby improving convenience in use.

[0026] In this embodiment, a first sealing structure is installed between the vacuum generator 50 and the end cap 40 to improve the sealing between them. The first sealing structure is a circular rubber seal 51. The circular rubber seal 51 is elastic and can be attached to the lower edge of the vacuum generator 50. The circular rubber seal 51 can be made of elastic materials such as silica gel or rubber. Preferably, the circular rubber seal 51 is made of a food-grade elastic material. The circular rubber seal 51 is attached to the lower edge of the vacuum generator 50 by a connection method such as bonding, gluing, or hot melt connection. The size of the circular rubber seal 51 can be formed to correspond to the size of the positioning recess 43. When the vacuum generator 50 is fitted into the positioning recess 43, the vacuum generator 50 can tightly abut against the sealing pad and the inner wall of the positioning recess 43 due to its own gravity. That is, by connecting the vacuum generator 50 to the positioning recess 43 in a sealed state, air leakage can be prevented and sealing can be achieved without a connected structure.

[0027] It should be noted that, although the vacuum generator 50 has been used as a negative pressure generator in this embodiment, this is merely a preferred example of the present invention. In other embodiments, a nozzle can be attached to the vent hole 41, and the vent hole 41 can be connected to another negative pressure generating device via an air guide tube. In other words, the present invention is not limited to the vacuum generator 50 of this embodiment, and any design changes or improvements made within the scope of the invention are naturally included in the scope of the utility model claims of the present invention.

[0028] To solve the problem of the liquid in the liquid storage compartment 22 not easily flowing out due to the air pressure inside the liquid storage compartment 22 being similar to the outside air pressure, a gap 42 can be formed between the end cap 40 and the inner wall of the liquid storage compartment 22. The desired gap 42 can be formed by adjusting the sizes of the end cap 40 and the liquid storage compartment 22. The gap 42 is merely a preferred example of the present invention; in other embodiments, the air pressure inside the liquid storage compartment 22 can be balanced with the outside air pressure by forming a through-hole in the outer peripheral surface of the end cap 40 or in the upper wall surface of the liquid storage compartment 22.

[0029] During extraction, the liquid flows downward from the liquid storage section 22 rapidly due to the negative pressure, preventing the liquid and the extract from being mixed evenly. To solve this problem, as shown in Figures 2 and 3, the sealed vacuum detachable extraction device of this embodiment further includes a flow diverter 60. The flow diverter 60 is detachably attached to the bottom of the second container 20. The flow diverter 60 divertes the liquid flowing from the liquid storage section 22, thereby extending the flow distance of the liquid and the extract and allowing the liquid and the extract to be mixed evenly.

[0030] 8, 9 and 10, the flow dividing element 60 of this embodiment includes a main body 61, an arc-shaped wall portion 62 and a separator plate 63. A guide recess 611 is formed at the upper end of the main body 61, and the liquid outlet at the bottom of the liquid storage portion 22 is located above the outer periphery of the guide recess 611. When the liquid flows to the guide recess 611, it flows (swirls) along the spiral structure of the guide recess 611, thereby allowing the liquid and the extract to mix more evenly.

[0031] The arc-shaped wall portion 62 includes four wall portions, which are arranged in a circle in the center of the guide recess 611. Two through-type drain holes 612 that pass through the flow diverting component 60 in the vertical direction are formed in the central region of the arc-shaped wall portion 62, which is made up of four wall portions. An opening that guides the inflow of liquid is formed between the two arc-shaped wall portions 62. When liquid flows into the flow diverting component 60 through the opening, some of the liquid flows along the inner wall of the arc-shaped wall portion 62, thereby achieving liquid division and guidance.

[0032] The separator 63 is formed in the center of the guide recess 611, and the central portion of the separator 63 is formed in a truncated cone shape. Both ends of the separator 63 extend to between the two arc-shaped wall portions 62, dividing the arc-shaped wall portion 62, which is made up of four wall portions, into two flow division areas, and one through-type drain hole 612 is formed within the flow division area. This structure allows for good liquid dispersion.

[0033] The flow dividing element 60 of this embodiment further includes a mounting portion 64, the lower end of which is integrally connected to the main body 61, and the upper end of which can be coupled to the second container 20. Specifically, a coupling recess is formed on the mounting portion 64, and a coupling portion that is coupled to the coupling recess is formed on the bottom of the second container 20. By coupling the coupling portion of the second container 20 to the coupling recess of the mounting portion 64, the flow dividing element 60 can be easily attached and detached.

[0034] It should be noted that the flow diverter element 60 using the coupling method of the coupling portion of the second container 20 and the coupling recess of the mounting portion 64 is merely a preferred example of the present invention. In other embodiments, the flow diverter element 60 can use a screw coupling method, a bolt coupling method, a docking connection method, a sleeve coupling method, etc., and is not limited to the coupling method of this embodiment.

[0035] When low-temperature extraction is performed on some extracts (e.g., coffee powder, tea powder, etc.), the extract needs to be steeped for a certain period of time before vacuum extraction. In the case of using the conventional direct outlet, when the extract and liquid are delivered to the second container 20, the liquid flows into the chamber 11 quickly through the direct outlet, preventing the extract from steeping for a long period of time.

[0036] To solve the problem of the extract not being able to soak for a long time when using the direct outlet, a drainage hole structure 70 is designed at the bottom of the liquid storage section 22 in this embodiment, as shown in Figures 2 and 3. When the air pressure in the chamber 11 is lower than the air pressure in the liquid storage section 22, the liquid in the liquid storage section 22 flows through the drainage hole structure 70 to the diverter element 60, and the diverting action of the diverter element 60 allows the liquid to flow into the chamber 11. When this structure is adopted, the liquid in the liquid storage section 22 cannot flow into the chamber 11 due to gravity, ensuring that the extract can soak for a long time and improving extraction efficiency.

[0037] Referring to FIG. 4, the drain hole structure 70 of this embodiment includes a drain hole 73 formed at the bottom of the liquid storage compartment 22 and a one-way valve attached to the drain hole 73. A specific example of the one-way valve is an I-type valve (also known as an I-type valve) 74. The drain hole 73 is a waist-shaped hole, and the I-type valve 74 has a small upper portion and a large lower portion. The upper portion of the I-type valve 74 is connected to the bottom of the liquid storage compartment 22, and the lower portion of the I-type valve 74 is made of a flexible material. In a natural state, the lower portion of the I-type valve 74 abuts against the bottom of the liquid storage compartment 22, completely sealing the lower end of the drain hole 73. When the air pressure in the chamber 11 is lower than the air pressure in the liquid storage compartment 22, the lower portion of the I-type valve 74 deforms under pressure, opening the lower passage of the drain hole 73, allowing liquid in the liquid storage compartment 22 to flow into the chamber 11 through the drain hole 73. As described above, the present invention has the advantage of an ingenious structure.

[0038] The use of the drain hole 73 and the valve 74 as the drain hole structure 70 is merely a preferred example of the present invention. In other embodiments, the drain hole structure 70 can also use a valve structure such as an electric valve or a pneumatic valve. In other words, the present invention is not limited to the drain hole structure 70 using the drain hole 73 and the valve 74. Any changes or improvements to the drain hole structure 70 made within the scope of the invention are naturally included in the scope of the utility model patent claim of the present invention.

[0039] 4, a second sealing structure 80 is installed between the air extraction passage 21 and the end cover 40. The second sealing structure 80 includes a lower extension 81 connected to the center of the lower end of the end cover 40, a first annular recess 82 formed on the outer circumferential surface of the lower extension 81, and an elastic sealing ring 83 fitted into the first annular recess 82. When the lower extension 81 is inserted into the center of the upper end of the air extraction passage 21, a tight fit is achieved by the elastic sealing ring 83 (the elastic sealing ring 83 abuts against the inner wall of the air extraction passage 21), preventing air leakage.

[0040] It should be noted that the sealing method using the lower extension 81 of the second sealing structure 80 and the elastic sealing ring 83 is merely a preferred example of the present invention. In other embodiments, detachable sealing methods such as bolt fastening, insert fastening, serrated coordination, etc. may also be used. In other words, any design changes or modifications that do not deviate from the spirit of the invention are naturally within the scope of the utility model patent claims of the present invention.

[0041] 4, in this embodiment, a third sealing structure 90 is installed between the first container 10 and the second container 20. The third sealing structure 90 includes a third annular recess formed on the outside of the bottom of the second container 20 and an elastic sealing ring 92 that is coupled to the third annular recess. When the bottom end of the first container 10 is inserted vertically into the open end of the second container 20, the elastic sealing ring 92 abuts against the inner circumferential surface of the first container 10, thereby achieving a tight seal and preventing air leakage when extracting air.

[0042] Example 3 4, the difference between Example 3 and Example 2 is that the second sealing structure 80 of Example 3 includes an elastic insert 84 inserted into the center of the lower end of the end cap 40, a second annular recess 85 formed in the outer wall of the elastic insert 84, and an annular connecting portion 86 formed in the inner wall of the air bleeding passage 21. The elastic insert 84 is made of an elastic material and can be deformed when pressure is applied. When the elastic insert 84 is inserted into the center of the upper end of the air bleeding passage 21, the annular connecting portion 86 of the air bleeding passage 21 is connected to the second annular recess 85 of the elastic insert 84, thereby achieving a tight connection and preventing air leakage.

[0043] Example 4 As shown in Figure 6, the difference between Example 4 and Example 2 is that the drain structure 70 of Example 4 includes a drain nozzle 71 attached to the bottom of the liquid storage compartment 22 and a one-way valve attached to the lower end of the drain nozzle 71. A specific example of the one-way valve can be a unidirectional back pressure valve 72. The unidirectional back pressure valve 72 is made of a flexible material, so that when the air pressure in the chamber 11 is lower than the air pressure in the liquid storage compartment 22, the unidirectional back pressure valve 72 opens, allowing the liquid in the liquid storage compartment 22 to flow into the chamber 11 through the drain nozzle 71 and the unidirectional back pressure valve 72. As described above, the present invention has the advantage of an ingenious structure.

[0044] The drain outlet structure 70, which is composed of the drain outlet nozzle 71 and the one-way back pressure valve 72, is merely a preferred example of the present invention. In other embodiments, the drain outlet structure 70 may be composed of a valve structure such as an electric valve or an air valve. In other words, the present invention is not limited to the drain outlet structure 70 composed of the drain outlet nozzle 71 and the one-way back pressure valve 72. Any changes or improvements to the drain outlet structure 70 made within the scope of the invention are naturally included in the scope of the utility model registration claim of the present invention.

[0045] Example 5 7, the first container 10 of this embodiment is formed in a conical structure, and a handle is formed on the outer periphery of the first container 10. In addition, an underlay is formed on the bottom of the first container 10, thereby improving the stability of the first container 10.

[0046] Example 6 11 , in this embodiment, a cylindrical hood 32 is attached to the middle of the filtering element 30, and the filtering structure 31 is connected to the lower end of the hood 32. The hood 32 completely seals the central cylindrical body of the second container 20. A first annular flange 87 is formed in the center of the lower end of the end cap 40, and the first annular flange 87 is connected to the upper end of the hood 32. In this embodiment, a first through-hole 321 is formed in the side wall of the upper end of the hood 32 to communicate the air vent 41 with the air extraction passage 21. In another embodiment, the first through-hole 321 can be formed in the upper end of the hood 32. When extracting air, the first through-hole 321 allows the air to flow.

[0047] In the above structure, when the filtering element 30 is inserted into the second container 20 to couple them together, a gap may be formed between the central cylindrical portion of the second container 20 and the hood 32 of the filtering element 30. In this embodiment, to improve the sealing at that position (i.e., between the central cylindrical portion of the second container 20 and the hood 32 of the filtering element 30), a fourth sealing structure can be installed between the second container 20 and the filtering element 30. The fourth sealing structure includes a first O-ring 93 and a third annular recess 94. The third annular recess 94 is formed on the outside of the central cylindrical portion of the second container 20, and the first O-ring 93 is coupled to the third annular recess 94. When the hood 32 is attached, the first O-ring 93 fills the gap, thereby achieving a tight seal.

[0048] A gap may also be formed between the upper end of the hood 32 and the first annular flange 87. In this embodiment, to improve the sealing at that position (i.e., between the upper end of the hood 32 and the first annular flange 87), a fifth sealing structure may be installed between the hood 32 and the first annular flange 87. The fifth sealing structure includes a second O-ring 95 and a fourth annular recess 96, which is formed on the outside of the hood 32 and to which the second O-ring 95 is coupled. When the first annular flange 87 is installed, the second O-ring 95 closes the gap, thereby achieving sealing.

[0049] As shown in FIGS. 11 to 13, in this embodiment, an inner lid 100 and a flow dividing member 60 are used together. The inner lid 100 includes a lid portion 101 and a cylindrical portion 102 formed at the center of the upper end of the lid portion 101. When the air extraction passage 70 is attached to the lid portion 101, the upper end of the cylindrical portion 102 and the air extraction passage 21 are in communication with each other. The flow dividing member 60 includes a main body 61, a first tube 66 formed at the center of the main body 61 and extending vertically, and two liquid guide walls 67 formed around the first tube 66. A first guide passage 671 for guiding liquid is formed between the two liquid guide walls 67, and each liquid guide wall 67 forms a second guide passage 672. The second guide passage 672 and the first guide passage 671 are in communication with each other, and the second guide passage 672 guides liquid into the interior. A through-type drain hole 612 is formed at the center of the lower end of the second guide passage 672. The liquid flowing out of the drain hole structure 70 flows into the first guide passage 671, then flows along the first guide passage 671 and into the second guide passage 672. Next, the liquid flows along the second guide passage 672 (forming a vortex), which allows the liquid and the extract to be mixed more evenly. Finally, the liquid is discharged to the outside through the through-type drain hole 612.

[0050] Example 7 14 , in this embodiment, a resilient mounting portion 23 is formed at the upper end of the central cylindrical body of the second container 20, and the resilient mounting portion 23 is inserted into the central cylindrical body of the filtering structure 31. A second annular flange 88 is formed at the center of the lower end of the end cap 40, and the second annular flange 88 is arranged coaxially with the axis of the resilient mounting portion 23. In this embodiment, a second through-hole 231 can be formed in the side wall of the upper end of the resilient mounting portion 23 to connect the air vent 41 and the air extraction passage 21. In another embodiment, the second through-hole 231 can also be formed at the upper end of the resilient mounting portion 23. When air is extracted, the air can flow through the first through-hole 321.

[0051] In the above structure, when the filtering element 30 is inserted into the second container 20 to couple them together, a gap may be formed between the central cylindrical portion of the second container 20 and the hood 32 of the filtering element 30. In this embodiment, to improve the sealing at that position (i.e., between the central cylindrical portion of the second container 20 and the hood 32 of the filtering element 30), a fourth sealing structure can be installed between the second container 20 and the filtering element 30. The fourth sealing structure includes a first O-ring 93 and a third annular recess 94. The third annular recess 94 is formed on the outside of the central cylindrical portion of the second container 20, and the first O-ring 93 is coupled to the third annular recess 94. When the hood 32 is attached, the first O-ring 93 fills the gap, thereby achieving a tight seal.

[0052] A gap may also be formed between the upper end of the elastic mounting portion 23 and the second annular flange 88. In this embodiment, to improve the sealing performance at that position (i.e., between the upper end of the elastic mounting portion 23 and the second annular flange 88), a sixth sealing structure may be installed between the elastic mounting portion 23 and the second annular flange 88. The sixth sealing structure includes a third O-ring 97 and a fifth annular recess 98, which is formed on the outer side of the hood 32 and the third O-ring 97 is coupled to the fifth annular recess 98. When the second annular flange 88 is installed, the third O-ring 97 closes the gap, thereby achieving sealing.

[0053] 14 and 15, the flow dividing element 60 of this embodiment includes a main body 61, a second pipe 69 formed in the center of the main body 61 and extending vertically, two arc-shaped wall sections 62 formed around the second pipe 69, and four S-shaped wall sections 613. Two through-hole drain holes 612 are formed between the two arc-shaped wall sections 62, and two opposing S-shaped wall sections 613 form trumpet-shaped third guide passages 673. Liquid flowing out of the drain hole structure 70 flows into the third guide passages 673 and then flows into the front of the two arc-shaped wall sections 62 via the trumpet-shaped third guide passages 673. Next, the liquid flows along the arc-shaped wall sections 62 (forming a vortex), which allows the liquid and the extract to be mixed more evenly. Finally, the liquid is discharged to the outside through the through-hole drain holes 612.

[0054] Although the present invention has been described in detail above through preferred embodiments thereof, the preferred embodiments are merely illustrative of the present invention, and the present invention is not limited to the above embodiments. A person skilled in the art may make design changes and improvements without departing from the technical details and gist of the present invention, and such design changes and improvements are naturally included in the scope of the utility model claims of the present invention. [Explanation of symbols]

[0055] 10 First container 11 Chambers 20 Second container 21 Air extraction passage 22 Liquid storage section 30 Filtration parts 31 Filtration structure 40 End lid 41 Ventilation hole 50 Vacuum Generator 51 Annular sealing rubber 60 Diversion parts 61 Main Unit 611 Guide recess 612 Through-type drainage hole 62 Arc-shaped wall 63 Separation plate 64 Mounting part 70 Drain structure 71 Drain nozzle 72 One-way back pressure valve 73 Drain hole 74 Engineering valve 90 Third sealed structure 80 Second sealed structure 42 Gap 43 Positioning recess 81 Lower extension part 82 First annular recess 83 Elastic sealing ring 84 Elastic insert 85 Second annular recess 86 Annular Joint 91 Third annular recess 92 Elastic sealing ring 32 Food 87 First annular flange 321 First through hole 93 First O-ring 94 Third annular recess 95 Second O-ring 96 Fourth annular recess 100 inner lid 101 Lid 102 Cylindrical part 66 First tube 67 Liquid guide wall 671 First guide aisle 672 Second guide passage 23 Elastic attachment part 88 Second annular flange 231 Second through hole 97 Third O-ring 98 Fifth annular recess 69 Second pipe 613 S type wall section 673 Third guide passage

Claims

1. a first container (10) having a chamber (11) for storing a liquid; a second container (20) detachably attached to the upper end of the first container (10), the second container (20) including an air extraction passage (21) and a liquid storage section (22) that communicate with each other in the vertical direction, the air extraction passage (21) and the liquid storage section (22) both communicating with the chamber (11); a filtering element (30) detachably attached to the rear side of the second container (20), the filtering element (30) having a filtering structure (31), the filtering structure (31) being located at the bottom of the liquid storage portion (22); an end cap (40) detachably attached to the upper end of the second container (20), the end cap (40) having an air vent (41) formed thereon, the air vent (41) communicating with the air extraction passage (21); a vacuum generator (50) detachably attached to the upper end of the end cover (40), the air extraction end of the vacuum generator (50) facing the vent hole (41), and the vent hole (41), the air extraction passage (21), and the chamber (11) communicating in a vertical direction in succession to form a passage through which air flows.

2. 2. The vacuum-sealed, removable extractor of claim 1, further comprising a first sealing structure disposed between the vacuum generator (50) and the end cap (40).

3. 2. The vacuum-sealed detachable extractor according to claim 1, wherein a second sealing structure (80) is installed between the air extraction passage (21) and the end cap (40).

4. The vacuum-sealed detachable extractor according to claim 1, characterized in that a third sealing structure (90) is installed between the first container (10) and the second container (20).

5. 2. The sealed vacuum detachable brewing device according to claim 1, further comprising a drainage structure (70) so that when the air pressure in the chamber (11) is lower than the air pressure in the liquid storage section (22), the liquid in the liquid storage section (22) flows into the chamber (11) through the drainage structure (70).

6. 6. The sealed vacuum detachable extractor of claim 5, wherein the drain structure (70) includes a one-way valve.

7. The sealed vacuum detachable extraction device of claim 1, further comprising a flow diverter (60), which is detachably attached to the bottom of the second container (20) to divert the liquid flowing from the liquid storage section (22).

8. The flow dividing element (60) includes a body (61) and two liquid guide walls (67), A guide recess (611) recessed downward is formed at the upper end of the body (61), The sealed vacuum type detachable extractor according to claim 7, characterized in that a first guide passage (671) for guiding liquid is formed between the two liquid guide wall portions (67), a second guide passage (672) is formed by each of the liquid guide wall portions (67), the second guide passage (672) and the first guide passage (671) are formed in a communication state, the second guide passage (672) guides liquid inside, and a through-type drain hole (612) is formed at the center lower end of the second guide passage (672).

9. The air-shedding element (60) further includes an internal lid (100), the internal lid (100) including a lid portion (101) and a cylindrical portion (102) formed in the center of the upper end of the lid portion (101), and the upper end of the cylindrical portion (102) is in communication with the air extraction passage (21).

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