WO2021217965A1 - 一种咖啡酿造机构及应用该机构制作咖啡的方法 - Google Patents

一种咖啡酿造机构及应用该机构制作咖啡的方法 Download PDF

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Publication number
WO2021217965A1
WO2021217965A1 PCT/CN2020/110747 CN2020110747W WO2021217965A1 WO 2021217965 A1 WO2021217965 A1 WO 2021217965A1 CN 2020110747 W CN2020110747 W CN 2020110747W WO 2021217965 A1 WO2021217965 A1 WO 2021217965A1
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Prior art keywords
box
coffee
brewing
guide post
inner box
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PCT/CN2020/110747
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English (en)
French (fr)
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伍平安
袁礼
林谦忠
苏国绍
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宁波研森电子科技有限公司
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Publication of WO2021217965A1 publication Critical patent/WO2021217965A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/24—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure
    • A47J31/32—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under air pressure
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/4403—Constructional details
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/46—Dispensing spouts, pumps, drain valves or like liquid transporting devices

Definitions

  • the invention relates to a coffee brewing mechanism and a method for making coffee using the mechanism.
  • the first technical problem to be solved by the present invention is to provide a coffee brewing mechanism that can effectively shorten the production time and improve the stability of coffee concentration in view of the current state of the art.
  • the second technical problem to be solved by the present invention is to provide a method for making cold coffee using the coffee brewing mechanism described above in view of the current state of the art.
  • the method can be used on the premise of not damaging the coffee taste and excessively extracting caffeine. Improve the taste of coffee, quickly make cold coffee or other forms of coffee beverages.
  • a coffee brewing mechanism which is characterized in that:
  • the brewing box has a hollow inside and an open top, and a drip opening is opened on the bottom wall of the brewing box;
  • the inner box has an upper port, at least the bottom of the inner box is arranged in the brewing box, and the bottom wall of the inner box is opened with a filter that can press the extraction hydraulic pressure into the brewing box under the state of applying pressure to the inner box hole;
  • the end cap is detachably connected to the upper port of the inner box and encloses the extraction chamber together with the inner wall of the inner box;
  • a switch assembly which is arranged at the bottom of the brewing box and is used to control the switch of the drip opening
  • An air pump the air outlet of the air pump is connected with the extraction chamber, and is used to pass air into the extraction chamber.
  • the switch assembly includes a guide post, a sealing gasket, and an elastic member.
  • the guide post is arranged to pass through the drip opening so as to move up and down, and an extraction liquid is formed between the outer periphery of the guide post and the inner wall of the drip opening.
  • the elastic member is provided at the lower end of the guide post and keeps the guide post always moving downward
  • the sealing gasket is provided at the upper end of the guide post and can open the drip opening as the guide post moves up.
  • the guide post moves down to close the drip opening.
  • This structure is convenient to close the drip opening.
  • the guide post can be pushed up by the push rod located outside the brewing box and below the guide post to open the drip opening.
  • the guide can also be controlled by electromagnetic structure. The column moves upwards. Since this type of structure is a conventional structure, it will not be repeated here.
  • the lower end of the guide post is provided with a bowl-shaped base with an opening facing upward, the lower end of the guide post is connected to the central part of the bowl-shaped base, and the bowl-shaped base has an opening for the extraction liquid to fall down. .
  • the structure of the bowl-shaped base can prevent dripping and leakage.
  • a plurality of grooves extending in the axial direction are formed on the outer peripheral wall of the guide column, and the grooves constitute the flow channel.
  • the inner end of the body is connected with the lower end of the groove, and the gap between two adjacent sector-shaped sheet bodies constitutes the opening.
  • the elastic member is a linear spring, which is sleeved on the outer periphery of the lower part of the guide post, and the upper end of the linear spring abuts against the bottom wall of the brewing box, and the lower end abuts against the inner wall of the bowl-shaped base.
  • the bottom wall of the brewing box gradually slopes downward from the edge to the center to form a flow guide surface, and the drip opening is opened in the center of the bottom wall of the brewing box.
  • This structure can prevent coffee liquid from stagnating on the edge of the bottom wall of the brewing box, and is convenient for cleaning.
  • the central part of the bottom wall of the brewing box is detachably provided with a filter screen capable of covering the drip opening, and the filter screen is shaped into an upwardly arched hemispherical structure.
  • the coffee liquid in the present invention is pressed out by the positive pressure in the extraction chamber, and there may be a small amount of residue.
  • the above-mentioned filter can filter the coffee liquid twice to improve the delicateness of the coffee taste, and the filter is hemispherical.
  • the filter area can be enlarged, and it is easy to clean.
  • the central part of the bottom wall of the brewing box is formed with a prism-shaped liquid collecting tank with a large upper end and a small lower end, the drip opening is opened in the central part of the bottom of the liquid collecting tank, and the outer periphery of the liquid collecting tank is provided There is a card slot arranged in the circumferential direction, and the lower edge of the filter screen is detachably locked in the card slot.
  • the above-mentioned liquid collecting tank is convenient for guiding the coffee liquid after the secondary filtration to the dripping opening, and the above-mentioned structure is convenient for installing the filter screen.
  • the diversion surface is provided with diversion ribs extending in the radial direction, the diversion ribs are four, and the diversion surface is divided into four regions arranged at intervals in the circumferential direction to further improve the diversion effect.
  • a rotatable stirring member is further provided in the inner box, and the stirring member includes a shaft located in the center and three stirring blades extending radially on the outer circumference of the shaft;
  • the driving part for the rotation of the stirring member is arranged on the top of the end cover and includes a motor and a reduction mechanism connected to the output shaft of the motor.
  • the output end of the reduction mechanism is connected with the upper end of the shaft, and the lower end of the shaft and the stirring blade is close to the inner box Bottom wall layout.
  • the bowl-shaped base may not be provided.
  • the switch assembly also includes a bottom support provided at the bottom of the brewing box and arranged corresponding to the guide post, the bottom support has a cylindrical and a leak-proof cavity with a closed bottom, and a liquid outlet is opened at the center of the bottom support, so
  • the anti-leakage cavity is provided with a cross-shaped support portion arranged around the liquid outlet, the cross-shaped support portion abuts against the lower end of the guide post, and a solenoid valve capable of controlling whether or not liquid is discharged is arranged under the liquid outlet.
  • the advantages of the present invention are: when the present invention is used, coffee powder and water are added to the inner box, the drip opening is kept closed, and then the content in the inner box is still or stirred, after a certain period of time , Through the air pump to pass air into the extraction chamber, while opening the drip opening, the air pumped into the extraction chamber by the air pump increases the pressure in the extraction chamber, thereby pressing the coffee liquid in the extraction chamber into the brewing box through the filter hole.
  • This method does not destroy the coffee taste or excessively extract caffeine, thereby improving the taste of coffee, shortening the preparation time, and is beneficial to increase the stability of the coffee concentration; and it can obtain a high extraction rate without negative taste. Therefore, coffee of the same strength can be prepared with less coffee powder, which can save coffee powder.
  • Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention.
  • Figure 2 is a cross-sectional view of Figure 1;
  • Figure 3 is an exploded view of Figure 1;
  • FIG. 4 is a schematic diagram of the structure of the guide post in Embodiment 1 of the present invention.
  • Figure 5 is a schematic diagram of the structure of the filter screen in Embodiment 1 of the present invention.
  • Figure 6 is a cross-sectional view of the brewing box in Example 1 of the present invention.
  • Figure 7 is a cross-sectional view of Embodiment 2 of the present invention.
  • FIG. 8 is a schematic diagram of the structure of the bottom bracket in FIG. 7.
  • the coffee brewing mechanism of this embodiment includes a brewing box 1, an end cover 2, a switch assembly 3, an inner box 4, an air pump 5, a stirring member 6 and a driving member 7.
  • the brewing box 1 is hollow and has The top is open 11, and the bottom wall of the brewing box 1 is provided with a drip opening 12.
  • the above-mentioned end cap 2 is threadedly connected to the top opening 11 of the brewing box 1.
  • the switch assembly 3 is arranged at the bottom of the brewing box 1 and is used to control the switch of the drip opening 12.
  • the inner box 4 is arranged in the brewing box 1 and forms an extraction chamber 41 that can hold coffee powder together with the end cover 2.
  • the filter hole 42 is hydraulically inserted into the brewing box 1. In order to achieve the effect of pressure filtration, the filter hole 42 is a dense filter hole.
  • the inner edge of the top opening 11 of the brewing box 1 is provided with a pallet 13 arranged in the circumferential direction, the outer periphery of the top edge of the inner box 4 is provided with a pallet 43 that can be mounted on the pallet 13, and the end cover 2 is covered After the top opening 11 of the brewing box 1 is placed, the lower wall surface of the end cover 2 and the upper wall surface of the inner box 4 are compressed by a sealing ring 8.
  • the end cover 2 is provided with an air inlet 21, and the air outlet of the air pump 5 is connected to the air inlet 21 through an air guide tube 51 for passing air into the extraction chamber 41.
  • the above-mentioned stirring member 6 is provided in the inner box 4, and the stirring member 6 includes a shaft 61 located in the center and three stirring blades 62 extending radially on the outer periphery of the shaft 61.
  • the driving member 7 is used to drive the stirring member 6 to rotate.
  • the driving member 7 is arranged on the top of the end cover 2 and includes a motor 71 and a reduction mechanism 72 connected to the output shaft of the motor 71. The upper ends are connected, and the lower ends of the shaft 61 and the stirring blade 62 are arranged close to the inner bottom wall of the inner box 4.
  • the switch assembly 3 of this embodiment includes a guide post 31, a sealing gasket 32, and an elastic member 33.
  • the guide post 31 is arranged to pass through the drip opening 12 so as to move up and down, and a guide post 31 is formed between the outer circumference of the guide post 31 and the inner wall of the drip opening 12 for extraction.
  • the elastic member 33 is provided at the lower end of the guide post 31 and keeps the guide post 31 always moving downward.
  • the sealing gasket 32 is provided at the upper end of the guide post 31 and can move the drip opening as the guide post 31 moves up. 12 is opened, and the drip opening 12 is closed as the guide post 31 moves down. This structure is convenient to close the drip opening 12.
  • the guide post 31 can be pushed up by the push rod located outside the brewing box 1 and below the guide post 31 to open the drip opening 12. Of course, it can also be opened.
  • the upward movement of the guide post 31 is controlled by an electromagnetic structure or the like. Since this type of structure is a conventional structure, it will not be repeated here.
  • the lower end of the guide post 31 is provided with a bowl-shaped base 310 with an opening facing upward.
  • the opening 312 where the extraction liquid falls.
  • the structure of the bowl-shaped base 310 can prevent dripping and leakage.
  • the outer peripheral wall of the guide post 31 is provided with a plurality of grooves 311 extending in the axial direction.
  • the grooves 311 constitute the above-mentioned flow channel.
  • the end is connected with the lower end of the groove 311, and the gap between two adjacent sector-shaped pieces 313 constitutes the above-mentioned opening 312.
  • the elastic member 33 is a linear spring, which is sleeved on the outer periphery of the lower part of the guide post 31 and the upper end abuts against the bottom wall of the brewing box 1, and the lower end abuts against the inner wall of the bowl-shaped base 310.
  • the bottom wall of the brewing box 1 gradually slopes downward from the edge to the center to form a guide surface 14, and the drip opening 12 is opened in the center of the bottom wall of the brewing box 1.
  • the diversion surface 14 is provided with diversion ribs 141 extending in the radial direction.
  • the diversion ribs 141 are four, and the diversion surface 14 is divided into four regions spaced apart in the circumferential direction to further improve the diversion effect. This structure can prevent the coffee liquid from stagnating on the edge of the bottom wall of the brewing box 1, and is easy to clean.
  • a filter screen 9 capable of covering the drip opening 12 is detachably provided at the center of the bottom wall of the brewing box 1, and the filter screen 9 is shaped into an upwardly arched hemispherical structure.
  • the coffee liquid is pressed out by the positive pressure in the extraction chamber 41, and there may be a small amount of residue.
  • the above-mentioned filter 9 can filter the coffee liquid twice to improve the delicateness of the coffee taste, and the filter 9 is The hemispherical shape not only increases the filtering area, but also facilitates cleaning.
  • the central part of the bottom wall of the brewing box 1 of this embodiment is formed with a prism-shaped sump 15 with a large upper end and a small lower end.
  • a card slot 16 is arranged in the circumferential direction, and the lower edge of the filter screen 9 is detachably locked in the card slot 16.
  • the above-mentioned liquid collection tank 15 is convenient for guiding the coffee liquid after the secondary filtration to the drip opening 12, and the above-mentioned structure is convenient for installing and disassembling the filter 9.
  • the method for making coffee using the coffee brewing mechanism described above includes the following steps:
  • the driving member 7 drives the stirring member 6 to rotate, stirring the contents in the inner box 4, so that the contents are fully mixed and contacted, and the coffee is fully extracted into the water through gentle stirring of the stirring member 6;
  • the coffee brewing mechanism and coffee making method of this embodiment can be used to make cold coffee or hot coffee.
  • it is used to make cold coffee, its advantages can be more prominent.
  • the temperature of the water added is 0°C ⁇ 25°C, which neither destroys the coffee taste nor excessively extracts caffeine, improves the coffee taste and shortens the production time.
  • the fastest production time can be 2 minutes. Finished internally, which helps to improve the stability of coffee concentration.
  • the assembly relationship between the brewing box and the inner box in this embodiment is different from that in Embodiment 1.
  • the height of the inner cavity made by the brewing box 1' is relatively small, while the height of the inner cavity of the inner box 4'is not affected.
  • the end cap 2' is placed on the top of the inner box 4'and is threadedly connected with the inner box 4'.
  • the switch assembly 3'in this embodiment is different in structure from that in the first embodiment.
  • the bottom of the guide post 31' is not provided with a bowl-shaped base, but is provided with an independent bottom bracket 34
  • the bottom bracket 34 has a cylindrical and closed bottom leak-proof cavity 341, the center of the bottom bracket 34
  • the leak-proof cavity 341 is provided with a cross-shaped support portion 343 arranged around the liquid outlet 342.
  • the cross-shaped support portion 343 abuts against the lower end of the guide post 31', and the elastic member 33' is elastically compressed on the brewing box Between the bottom wall of 1'and the outer edge of the bottom of the guide post 31', the guide post 31' maintains a downward movement trend.
  • a solenoid valve 35 connected to the liquid outlet 342 is arranged under the bottom bracket 34 to control whether liquid is discharged.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Apparatus For Making Beverages (AREA)

Abstract

一种咖啡酿造机构，包括酿造盒（1，1'）、端盖（2，2'）、开关组件（3，3'）、内盒（4，4'）、气泵（5），酿造盒（1，1'）内部中空且具有顶部敞口（11），酿造盒（1，1'）的底壁上开有滴漏口（12）；端盖（2，2'）脱卸式连接在酿造盒（1，1'）的顶部敞口（11）处；开关组件（3，3'）用于控制滴漏口（12）开关；内盒（4，4'）设于酿造盒（1，1'）中且与端盖（2，2'）之间共同构成能盛放咖啡粉的萃取腔（41），内盒（4，4'）的底壁上开有能在向内盒（4，4'）中施加压力状态下将萃取液压入酿造盒（1，1'）中的过滤孔（42）；气泵（5）用于向萃取腔（41）中通入空气。使用时，将咖啡粉及水加入内盒（4，4'）中，保持滴漏口（12）关闭，静止或对内盒（4，4'）中的内容物进行搅拌后，通过气泵（5）向萃取腔（41）中通入空气，将滴漏口（12）打开，萃取腔（41）内压力增大将咖啡液压出，该方法不破坏咖啡味道也不过度萃取咖啡因，改善了咖啡口感、缩短了制作时间，有利于提高咖啡浓度的稳定性，且同样浓度的咖啡，可以用更少的咖啡粉量制得。

Description

一种咖啡酿造机构及应用该机构制作咖啡的方法 技术领域
本发明涉及一种咖啡酿造机构及应用该机构制作咖啡的方法。
背景技术
咖啡作为现代生活品味的标志性饮品，逐渐进入到人们日常的工作、学习和生活中。人们在闲暇时刻浸泡一杯浓郁、醇香的咖啡，不仅会极大地提高精神，而且还可以让人们慢慢享受闲暇时刻所无限轻松与美好。
随着人们对咖啡饮品要求的不断提高，越来越多的人认为经历较长时间冷却过程而冷却后的咖啡饮料更具美味，并且冷却过程所经历的时间越久，例如将冲泡的咖啡饮料凉置一晚后，越能得到咖啡的精华。冷咖啡通过低温浸透湿润，口感香浓、滑顺、不酸涩、不伤胃，受到众多用户喜爱。需要饮用冷咖啡时，将咖啡粉倒入特定的冲泡装置中，然后用冷水对冲泡装置中的咖啡粉进行冲泡，以得到冷咖啡，但这样花费时间太长。
目前市面上也有通过虹吸方式用冷水反复浸泡咖啡粉来萃取的，或让咖啡粉在冷水中一边浸泡一边搅拌的方式来萃取，但这些方式仍旧需要花费很长时间，且制作的咖啡浓度不稳定，无法满足消费者需求。
发明内容
本发明所要解决的第一个技术问题是针对现有技术的现状，提供一种能有效缩短制作时间、提高咖啡浓度稳定性的咖啡酿造机构。
本发明所要解决的第二个技术问题是针对现有技术的现状，提供一种应用上述咖啡酿造机构制作冷咖啡的方法，该方法能在不破坏咖啡味道也不过度萃取咖啡因的前提下，改善咖啡口感、快速制作冷咖啡或其它形式的咖啡饮料。
本发明解决至少一个上述技术问题所采用的技术方案为：一种咖啡酿造机构，其特征在于：包括
酿造盒，内部中空且具有顶部敞口，所述酿造盒的底壁上开有滴漏口；
内盒，具有上端口，所述内盒的至少底部设于酿造盒中，且所述内盒的底壁上开有能在向内盒中施加压力状态下将萃取液压入酿造盒中的过滤孔；
端盖，脱卸式连接在内盒的上端口处且与内盒的内壁共同围合成萃取腔；
开关组件，设于所述酿造盒的底部且用于控制滴漏口的开关；以及
气泵，该气泵的出气口与所述萃取腔相连接，用于向萃取腔中通入空气。
在上述方案中，所述开关组件包括导柱、密封垫及弹性件，所述导柱能上下移动地穿过滴漏口布置，且所述导柱外周与滴漏口内壁之间形成有供萃取液流过的流道，所述弹性件设于导柱下端并使导柱始终保持向下移动的趋势，所述密封垫设于导柱上端并能随导柱上移而将滴漏口打开、随导柱下移而将滴漏口封闭。该结构便于将滴漏口封闭，在需要将滴漏口打开时，可通过位于酿造盒外、导柱下方的顶杆将导柱向上顶从而将滴漏口打开，当然，也可以通过电磁结构等控制导柱向上移动，由于该类结构为常规结构，在此不做赘述。
优选地，所述导柱下端设置有开口朝上的碗状底座，所述导柱下端与该碗状底座的中央部位相连接，且所述碗状底座的上开有供萃取液落下的开口。上述碗状底座的结构可起到防滴漏作用。
优选地，所述导柱的外周壁上开有多个沿轴向延伸的槽，该槽构成所述的流道，所述底座具有多个沿周向间隔布置的扇形片体，该扇形片体的内端与所述槽的下端相连接，相邻两扇形片体之间的空隙构成所述的开口。该结构既便于将咖啡液输出，也能对漏出的少量咖啡起到防滴漏作用。
为了便于装配，所述的弹性件为直线弹簧，该直线弹簧套置在所述导柱下部的外周且上端与酿造盒的底壁相抵、下端与碗状底座的内壁相抵。
优选地，所述酿造盒的底壁自边缘向中央部位逐渐向下倾斜形成导流面，所述滴漏口开设于酿造盒底壁的中央部位。该结构可避免咖啡液在酿造盒底壁的边缘部位滞留，便于清洗。
作为改进，所述酿造盒底壁的中央部位脱卸式设置有能将滴漏口覆盖的过滤网，该过滤网成形为向上拱起的半球状结构。本发明中的咖啡液被萃取腔中的正压压出，可能会存在少量残渣，上述过滤网可对咖啡液进行二次过滤，提高咖啡口感的细腻度，且该过滤网为半球状，不仅可增大过滤面积，而且便于清洗。
优选地，所述酿造盒底壁的中央部位形成有上端大、下端小的棱台状集液槽，所述滴漏口开设于该集液槽底部的中央部位，所述集液槽的外周设置有沿周向布置的卡槽，所述过滤网的下边缘脱卸式卡置在该卡槽中。上述集液槽便于将二次过滤后的咖啡液向滴漏口引导，且上述结构便于对过滤网进行安装。
优选地，所述导流面上设置有沿径向延伸的导流筋，该导流筋为四条，将导流面分为四个在周向上间隔布置的区域，以进一步提高导流效果。
优选地，所述内盒中还设置有能转动的搅拌件，该搅拌件包括位于中心的轴及在该轴的外周沿径向延伸的三片搅拌叶；所述酿造盒外设置有能驱动该搅拌件转动的驱动件，该驱动件设于端盖顶部，包括电机及连接在电机输出轴上的减速机构，减速机构的输出端与轴上端相连接，轴及搅拌叶的下端贴近内盒底壁布置。该结构有利于提高萃取效果。
作为开关组件的另一种方案，可以不设置碗状底座。所述开关组件还包括设于酿造盒底部且对应导柱布置的底托，所述底托具有圆筒状且底部封闭的防漏腔，所述底托的中央部位开有出液口，所述防漏腔中设置有围绕出液口布置的十字状支撑部，该十字状支撑部与导柱的下端相抵，所述出液口下方设置有能控制出液与否的电磁阀。
一种应用上述咖啡酿造机构制作咖啡的方法，其特征在于包括以下步骤：
(1)打开端盖，将咖啡粉及水加入内盒中，盖上端盖，开关组件保持将滴漏口关闭状态；
(2)静止或对内盒中的内容物进行搅拌；
(3)通过气泵向萃取腔中通入空气，同时，开关组件将滴漏口打开，气泵泵入萃取腔中的空气使萃取腔内压力增大，从而将内盒中的萃取液经底部过滤孔压入其下方的酿造盒中，并进一步经滴漏口输出。
与现有技术相比，本发明的优点在于：本发明在使用时，将咖啡粉及水加入内盒中，保持滴漏口关闭，然后静止或对内盒中的内容物进行搅拌，一定时间后，通过气泵向萃取腔中通入空气，同时将滴漏口打开，气泵泵入萃取腔中的空气使萃取腔内压力增大，从而将萃取腔中的咖啡液经过滤孔压入酿造盒中，该方法不破坏咖啡味道也不过度萃取咖啡因，从而改善了咖啡口感、缩短了制作时间，且有利于提高咖啡浓度的稳定性；并且能够在不产生负面味道的情况下获得高的萃取率，因此同样浓度的咖啡，可以用更少的咖啡粉量制得，可节约咖啡粉。
附图说明
图1为本发明实施例1的结构示意图；
图2为图1的剖视图；
图3为图1的分解图；
图4为本发明实施例1中导柱的结构示意图；
图5为本发明实施例1中过滤网的结构示意图；
图6为本发明实施例1中酿造盒的剖视图；
图7为本发明实施例2的剖视图；
图8为图7中底托的结构示意图。
具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
如图1～6所示，本实施例的咖啡酿造机构包括酿造盒1、端盖2、开关组件3、内盒4、气泵5、搅拌件6及驱动件7，酿造盒1内部中空且具有顶部敞口11，酿造盒1的底壁上开 有滴漏口12。
如图2所示，上述端盖2螺纹连接在酿造盒1的顶部敞口11处。开关组件3设于酿造盒1的底部且用于控制滴漏口12的开关。内盒4设于酿造盒1中且与端盖2之间共同构成能盛放咖啡粉的萃取腔41，内盒4的底壁上开有能在向内盒4中施加压力状态下将萃取液压入酿造盒1中的过滤孔42，为了实现压力过滤的效果，该过滤孔42为致密的过滤孔。酿造盒1顶部敞口11的内边缘处设置有沿周向布置的托台13，内盒4顶部边缘的外周设置有能架置在该托台13上的托圈43，端盖2盖置在酿造盒1的顶部敞口11上后，端盖2下壁面与内盒4上壁面之间通过密封圈8压紧。端盖2上开有进气口21，气泵5的出气口通过导气管51与进气口21相连接，用于向萃取腔41中通入空气。
如图2、3所示，上述搅拌件6设于内盒4中，该搅拌件6包括位于中心的轴61及在该轴61的外周沿径向延伸的三片搅拌叶62。驱动件7用于驱动搅拌件6转动，驱动件7设于端盖2顶部，包括电机71及连接在电机71输出轴上的减速机构72，减速机构72的输出端通过耦合器73与轴61上端相连接，轴61及搅拌叶62的下端贴近内盒4内底壁布置。
本实施例的开关组件3包括导柱31、密封垫32及弹性件33，导柱31能上下移动地穿过滴漏口12布置，且导柱31外周与滴漏口12内壁之间形成有供萃取液流过的流道，弹性件33设于导柱31下端并使导柱31始终保持向下移动的趋势，密封垫32设于导柱31上端并能随导柱31上移而将滴漏口12打开、随导柱31下移而将滴漏口12封闭。该结构便于将滴漏口12封闭，在需要将滴漏口12打开时，可通过位于酿造盒1外、导柱31下方的顶杆将导柱31向上顶从而将滴漏口12打开，当然，也可以通过电磁结构等控制导柱31向上移动，由于该类结构为常规结构，在此不做赘述。
具体的，如图4所示，导柱31下端设置有开口朝上的碗状底座310，导柱31下端与该碗状底座310的中央部位相连接，且碗状底座310的上开有供萃取液落下的开口312。上述碗状底座310的结构可起到防滴漏作用。导柱31的外周壁上开有多个沿轴向延伸的槽311，该槽311构成上述流道，底座310具有多个沿周向间隔布置的扇形片体313，该扇形片体313的内端与槽311的下端相连接，相邻两扇形片体313之间的空隙构成上述开口312。该结构既便于将咖啡液输出，也能对漏出的少量咖啡起到防滴漏作用。弹性件33为直线弹簧，该直线弹簧套置在导柱31下部的外周且上端与酿造盒1的底壁相抵、下端与碗状底座310的内壁相抵。
在本实施例中，如图6所示，酿造盒1的底壁自边缘向中央部位逐渐向下倾斜形成导流面14，滴漏口12开设于酿造盒1底壁的中央部位。导流面14上设置有沿径向延伸的导流筋141，该导流筋141为四条，将导流面14分为四个在周向上间隔布置的区域，以进一步提高导流效果。该结构可避免咖啡液在酿造盒1底壁的边缘部位滞留，便于清洗。酿造盒1底壁的中央部位脱卸式设置有能将滴漏口12覆盖的过滤网9，该过滤网9成形为向上拱起的半球状结构。本实施例中的咖啡液被萃取腔41中的正压压出，可能会存在少量 残渣，上述过滤网9可对咖啡液进行二次过滤，提高咖啡口感的细腻度，且该过滤网9为半球状，不仅可增大过滤面积，而且便于清洗。
本实施例酿造盒1底壁的中央部位形成有上端大、下端小的棱台状集液槽15，滴漏口12开设于该集液槽15底部的中央部位，集液槽15的外周设置有沿周向布置的卡槽16，过滤网9的下边缘脱卸式卡置在该卡槽16中。上述集液槽15便于将二次过滤后的咖啡液向滴漏口12引导，且上述结构便于对过滤网9进行安装及拆卸。
本实施例中应用上述咖啡酿造机构制作咖啡的方法包括以下步骤：
(1)将端盖2自酿造盒1顶部取下，将咖啡粉及水加入内盒4中，盖上端盖2，开关组件3保持将滴漏口12关闭的状态；
(2)驱动件7驱动搅拌件6转动，对内盒4中的内容物进行搅拌，使内容物充分混合、接触，经过搅拌件6轻柔的搅动而使咖啡充分萃取至水中；
(3)通过气泵5向萃取腔41中通入空气，同时，开关组件3将滴漏口12打开，气泵5泵入萃取腔41中的空气使萃取腔41内压力增大，从而将内盒4中的萃取咖啡液经底部过滤孔42压入其下方的酿造盒1中，并进一步经过滤网9过滤后从滴漏口12输出。
本实施例的咖啡酿造机构及制作咖啡的方法既可以用于制作冷咖啡也可以用于制作热咖啡，当其用于制作冷咖啡时，能更加突出其优势。当用于制作冷咖啡时，加入的水温度为0℃～25℃，既不破坏咖啡味道也不过度萃取咖啡因，且改善了咖啡口感、缩短了制作时间，制作时间最快可在2分钟内完成，有利于提高咖啡浓度的稳定性。
当用于制作热咖啡时，则只要往内盒中加入热水即可。当然也可以在本咖啡机的基础上对其进行再延伸，如增设一套可对储存于水箱内的水进行加热的装置，来进行制作冷、热咖啡，这样可以满足不同场合的使用需求。
实施例2：
本实施例与实施例1的区别在于：
如图7所述，本实施例中酿造盒与内盒的装配关系与实施例1不同。本实施例中酿造盒1’做的内腔高度较小，而内盒4’的内腔高度不受影响，在装配时，内盒4’仅底部插置在酿造盒1’中并与酿造盒1’螺纹连接。端盖2’盖置在内盒4’的顶部，与内盒4’螺纹连接。
图7、8所示，本实施例中的开关组件3’与实施例1结构不同。本实施例中导柱31’的底部不设置碗状底座，而是设置一独立的底托34，该底托34具有圆筒状且底部封闭的防漏腔341，底托34的中央部位开有出液口342，防漏腔341中设置有围绕出液口342布置的十字状支撑部343，该十字状支撑部343与导柱31’的下端相抵，弹性件33’弹性压缩在酿造盒1’底壁与导柱31’底部外缘之间，使导柱31’保持向下移动的趋势。底托34下方设置有与出液口342相连接的电磁阀35，以控制出液与否。

Claims (10)

  1. 一种咖啡酿造机构，其特征在于：包括
    酿造盒，内部中空且具有顶部敞口，所述酿造盒的底壁上开有滴漏口；
    内盒，具有上端口，所述内盒的至少底部设于酿造盒中，且所述内盒的底壁上开有能在向内盒中施加压力状态下将萃取液压入酿造盒中的过滤孔；
    端盖，脱卸式连接在内盒的上端口处且与内盒的内壁共同围合成萃取腔；
    开关组件，设于所述酿造盒的底部且用于控制滴漏口的开关；以及
    气泵，该气泵的出气口与所述萃取腔相连接，用于向萃取腔中通入空气。
  2. 根据权利要求1所述的咖啡酿造机构，其特征在于：所述开关组件包括导柱、密封垫及弹性件，所述导柱能上下移动地穿过滴漏口布置，且所述导柱外周与滴漏口内壁之间形成有供萃取液流过的流道，所述弹性件使导柱始终保持向下移动的趋势，所述密封垫设于导柱上端并能随导柱上移而将滴漏口打开、随导柱下移而将滴漏口封闭。
  3. 根据权利要求2所述的咖啡酿造机构，其特征在于：所述导柱下端设置有开口朝上的碗状底座，所述导柱下端与该碗状底座的中央部位相连接，且所述碗状底座的上开有供萃取液落下的开口。
  4. 根据权利要求3所述的咖啡酿造机构，其特征在于：所述导柱的外周壁上开有多个沿轴向延伸的槽，该槽构成所述的流道，所述底座具有多个沿周向间隔布置的扇形片体，该扇形片体的内端与所述槽的下端相连接，相邻两扇形片体之间的空隙构成所述的开口。
  5. 根据权利要求2所述的咖啡酿造机构，其特征在于：所述开关组件还包括设于酿造盒底部且对应导柱布置的底托，所述底托具有圆筒状且底部封闭的防漏腔，所述底托的中央部位开有出液口，所述防漏腔中设置有围绕出液口布置的十字状支撑部，该十字状支撑部与导柱的下端相抵，所述出液口下方设置有能控制出液与否的电磁阀。
  6. 根据权利要求1～5中任一权利要求所述的咖啡酿造机构，其特征在于：所述酿造盒的底壁自边缘向中央部位逐渐向下倾斜形成导流面，所述滴漏口开设于酿造盒底壁的中央部位。
  7. 根据权利要求6所述的咖啡酿造机构，其特征在于：所述酿造盒底壁的中央部位脱卸式设置有能将滴漏口覆盖的过滤网，该过滤网成形为向上拱起的半球状结构。
  8. 根据权利要求7所述的咖啡酿造机构，其特征在于：所述酿造盒底壁的中央部位形成有上端大、下端小的棱台状集液槽，所述滴漏口开设于该集液槽底部的中央部位，所述集液槽的外周设置有沿周向布置的卡槽，所述过滤网的下边缘脱卸式卡置在该卡槽中；
    所述导流面上设置有沿径向延伸的导流筋。
  9. 根据权利要求1～5中任一权利要求所述的咖啡酿造机构，其特征在于：所述内 盒中还设置有能转动的搅拌件，所述酿造盒外设置有能驱动该搅拌件转动的驱动件。
  10. 一种应用权利要求1～9中任一权利要求所述咖啡酿造机构制作咖啡的方法，其特征在于包括以下步骤：
    (1)打开端盖，将咖啡粉及水加入内盒中，盖上端盖，开关组件保持将滴漏口关闭状态；
    (2)静止或对内盒中的内容物进行搅拌；
    (3)通过气泵向萃取腔中通入空气，同时，开关组件将滴漏口打开，气泵泵入萃取腔中的空气使萃取腔内压力增大，从而将内盒中的萃取液经底部过滤孔压入其下方的酿造盒中，并进一步经滴漏口输出。
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