WO2017036250A1 - 一种落粉咖啡漏斗和使用其的咖啡机 - Google Patents

一种落粉咖啡漏斗和使用其的咖啡机 Download PDF

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Publication number
WO2017036250A1
WO2017036250A1 PCT/CN2016/089769 CN2016089769W WO2017036250A1 WO 2017036250 A1 WO2017036250 A1 WO 2017036250A1 CN 2016089769 W CN2016089769 W CN 2016089769W WO 2017036250 A1 WO2017036250 A1 WO 2017036250A1
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Prior art keywords
coffee
funnel
assembly
tray
limiting
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PCT/CN2016/089769
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English (en)
French (fr)
Inventor
郭建刚
林锦如
张绍振
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广东新宝电器股份有限公司
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Application filed by 广东新宝电器股份有限公司 filed Critical 广东新宝电器股份有限公司
Priority to DE112016003975.1T priority Critical patent/DE112016003975B4/de
Priority to DE212016000160.4U priority patent/DE212016000160U1/de
Publication of WO2017036250A1 publication Critical patent/WO2017036250A1/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
    • A47J31/06—Filters or strainers for coffee or tea makers ; Holders therefor

Definitions

  • the present invention relates to a coffee machine, and more particularly to a coffee machine having a powdered coffee hopper.
  • the Chinese utility model patent ZL200820302628.7 proposes a coffee machine having a grinder mechanism, a brewing mechanism and a water supply system in the casing; the brewing mechanism comprises: a brewing container into which the coffee powder can be placed, above the brewing container There is a brewing head with a water injection channel. Since the brewing container is detachably disposed on the deck, the brewing container is convenient to clean.
  • the present invention proposes a powdered coffee hopper and a coffee machine using the same, which not only can easily remove the coffee powder cake in the coffee hopper, but also can adjust the volume of the brewing chamber to produce different amounts of coffee.
  • the present invention provides a powdered coffee funnel comprising a funnel assembly having a floatable screen assembly therein, the lower portion of the screen assembly being resiliently supported by a screen support mounted within the funnel assembly.
  • the invention provides a powdered coffee funnel, wherein the filter assembly has a tray and a support rod located under the tray, and the upper surface of the tray is matched with the inner wall of the funnel assembly to form a brewing chamber, and the upper surface edge of the tray is
  • the inner wall of the funnel assembly can realize a sliding seal; the center of the filter holder has a through hole, and the support rod passes through the through hole from top to bottom, and the through hole has a ring groove which is not penetrated, and the upper sleeve of the support rod Assume There is a return spring, one end of the return spring abuts against the tray, and the other end of the return spring abuts against the ring groove of the filter holder.
  • the invention provides a powder coffee hopper, wherein the tail end of the yoke is fixedly connected with the limiting block, and the maximum radial dimension of the limiting block is larger than the diameter of the through hole.
  • a filter assembly includes a tray and a support rod connecting the lower surface of the tray, and the upper surface of the tray is matched with the inner wall of the funnel assembly to form a brewing chamber, and the tray
  • the edge of the filter holder is slidably sealed with the inner wall of the funnel assembly;
  • the center of the filter holder has a through hole, and the support rod is fixedly connected from the upper and lower through the through hole to the limiting block, and the support rod is sleeved with a return spring
  • One end of the return spring abuts on the filter bracket, and the other end of the return spring abuts on the limiting block, and the limiting block can be arranged in the filter bracket to move up and down.
  • the lower part of the filter holder is provided with a socket, and the central portion of the insertion hole is provided with a limiting platform.
  • the limiting block comprises an insertion portion and a limiting portion connected in sequence, and the limiting portion is correspondingly arranged with the limiting platform.
  • the invention provides a powder coffee hopper, wherein the inside of the brewing chamber of the funnel assembly is composed of at least two cylindrical cavities with different inner diameters, and the inner diameter of the cavity above the brewing chamber is larger than the inner diameter of the lower chamber.
  • the tray is always in the lower chamber of the brewing chamber.
  • the present invention provides a powdered coffee funnel wherein the screen support is height-adjustable within the funnel assembly.
  • the invention provides a powder coffee hopper, wherein the screen support has a body, and at least one set of limiting grooves are uniformly distributed on the sidewall of the body, and each set of the limiting grooves has an axial arrangement along the body. At least two latching slots and a switching slot communicating with each of the latching slots; the interior of the funnel assembly corresponding to the limiting slot of the filter bracket is provided with at least one bump, the bump being capable of being embedded in One of the slot slots in the slot.
  • the present invention provides a powdered coffee funnel, wherein the body is provided with a stud, and the stud extends outward in a radial direction of the body; the interior of the funnel assembly is disposed at a predetermined distance from the stud.
  • the fixing member is connected with an adjusting spring between the protruding post and the fixing member.
  • the present invention provides a powdered coffee funnel wherein the adjustment spring extends in a horizontal direction.
  • the invention provides a powdered coffee funnel, wherein a rotating sleeve is arranged below the sieve support.
  • the invention also provides a coffee machine wherein the coffee machine uses the powdered coffee funnel.
  • the compacted coffee powder cake is ejected by means of the floating filter assembly, and the coffee powder cake in the coffee funnel can be easily removed when the funnel assembly is turned over, and the automatic powder falling function is realized, which is very convenient to use and has a remarkable cleaning effect.
  • the volume of the brewing chamber can be adjusted, thereby making different amounts of coffee, and a multi-purpose machine can be used.
  • Figure 1 is an exploded view of the powdered coffee funnel of the present invention
  • Figure 2 is a schematic view of the present invention when adding coffee powder
  • Figure 3 is a schematic view of the brewing head of the present invention after filling the coffee powder
  • Figure 4 is a schematic view of the flipping funnel dropping coffee cake of the present invention.
  • Figure 5 is an exploded view of a powder coffee hopper according to another embodiment of the present invention.
  • FIG. 6 is a schematic view of a brewing head filled with coffee powder according to another embodiment of the present invention.
  • Figure 7 is a schematic illustration of a flipping funnel dropping a coffee cake in accordance with another embodiment of the present invention.
  • the present invention provides a powdered coffee funnel, which mainly comprises a funnel assembly 2, a floatable filter assembly 3 is arranged in the funnel assembly 2, and a filter mesh is arranged below the filter assembly 3.
  • the bracket 4 is supported and the screen bracket 4 is height-mounted within the funnel assembly 2.
  • the screen assembly 3 has a bracket 31 having a substantially T-shaped longitudinal section. Specifically, the bracket 31 has a tray 311 and a support bar 312 located below the tray 311. The upper surface of the tray 311 cooperates with the inner wall of the funnel unit 2 to form a brewing chamber 21 for receiving the coffee powder 5, and the tray 311 The upper surface edge and the inner wall of the funnel assembly 2 enable a sliding seal.
  • the upper surface edge of the tray 311 is a soft material, such as rubber, and the diameter of the upper surface edge of the tray 311 is slightly larger than the inner diameter of the inner wall of the funnel assembly 2 to achieve a good seal at the bottom of the brewing chamber 21; alternatively, the upper surface edge of the tray 311 may be provided
  • the sliding seal ring (not shown in detail), the outer diameter of the sliding seal ring is slightly larger than the inner diameter of the inner wall of the funnel assembly 2, and a good seal at the bottom of the brewing chamber 21 can also be achieved.
  • the center of the filter holder 4 has a through hole 41.
  • the support rod 312 passes through the through hole 41 from the top to the bottom and the tail end of the rod 312 is fixedly connected to the limiting block 33.
  • the maximum radial dimension of the limiting block 33 is larger than the aperture of the through hole 41. Therefore, the limiting block 33 can perform a limiting action on the bracket 312, ensuring that the bracket 312 cannot be disengaged from the through hole 41.
  • the through hole 41 has a ring groove 42 that does not penetrate therethrough, and the opening of the ring groove 42 faces the direction of the bracket 31.
  • the rest rod 312 of the screen assembly 3 is sleeved with a return spring 32.
  • One end of the return spring 32 abuts against the lower side of the tray 311, and the other end of the return spring 32 abuts against the annular groove 42 of the screen holder 4. Since the filter holder 4 is fixed in the funnel assembly 2, the screen assembly 3 is pushed by the return spring 32 and floats in the funnel assembly 2, and the limiting block 33 can restrict the filter assembly 3 from floating. the height of.
  • the limiting block 33 has a through hole, and the end of the supporting rod 312 has a threaded hole therein, and the locking screw 34 can pass through the through hole of the limiting block 33 and the threaded hole of the supporting rod 312.
  • the threaded connection is performed to fix the retaining block 33 and the bracket 312.
  • the connection manner of the limiting block 33 and the bracket 312 is not limited thereto, and the limiting block 33 may be directly screwed with the bracket 312, or may be engaged, spliced, welded, bonded, etc. Other connection methods are connected.
  • the interior of the brewing chamber 21 of the funnel assembly 2 is composed of at least two stages of cylindrical cavities of different inner diameters, and the inner diameter of the cavity above the brewing chamber 21 is larger than the inner diameter of the lower chamber, so that the coffee powder is facilitated by the floating filter assembly. 3
  • the cavity of the smaller inner diameter is moved to the cavity of the larger inner diameter, a gap is formed with the inner wall of the cavity, which is easy to fall.
  • the tray 311 is always in the lower chamber of the brewing chamber 21, ensuring a good seal at the bottom of the brewing chamber 21.
  • the outer diameter of the upper surface edge of the tray 311 of the bracket 31 is slightly larger than the inner diameter of the lower cavity of the brewing chamber 21, or the outer diameter of the sliding sealing ring installed on the upper surface edge of the tray 311 is required. Slightly larger than the inner diameter of the lower cavity of the brewing chamber 21. Therefore, when the coffee powder 5 is added into the brewing chamber 21, even if the tray 311 does not sink to the bottom of the brewing chamber 21, the tray 311 remains in a bottom sealed state with the lower chamber of the brewing chamber 21, and the coffee powder 5 does not. It will fall from the edge of the tray 311 into the interior of the funnel assembly 2.
  • the top of the funnel assembly 2 is correspondingly provided with a brewing head 1 , and the brewing head 1 is sleeved with a punch
  • the bubble head sealing ring 11 has an outer diameter of the brewing head sealing ring 11 larger than the inner diameter of the cavity above the brewing chamber 21, so that the brewing head sealing ring 11 can seal the gap between the brewing head 1 and the brewing chamber 21, The sealing of the brewing chamber 21 is achieved.
  • the brewing head sealing ring 11 can adopt an O-ring, but is not limited thereto.
  • the working principle of the automatic powder falling function of the embodiment is as follows: as shown in FIG. 3, before the coffee is brewed, an appropriate amount of coffee powder 5 is added into the brewing chamber 21 of the funnel assembly 2, and the excess coffee powder 3 is added. Scrape flat, and then the bubble head 1 is moved downward. After contacting the coffee powder 5, the coffee powder 5 and the floating filter assembly 3 are compressed downward until the brewing head 1 moves to the set position. At this time, the coffee The volume of the powder 5 is compressed and compacted, and then the brewing process is started to brew the coffee. Then, as shown in FIG.
  • the brewing head 1 is reset upward, and at the same time, since the brewing head 1 releases the pressure on the coffee powder 5, the return spring 32 acts on the filter assembly 3 to eject upward, and the coffee powder 5 is Moving to the cavity having a larger inner diameter above the funnel assembly 2, at this time, the funnel assembly 2 is taken out and turned over, and the coffee powder 5 is automatically dropped by its own gravity, and at the same time, the limiting block 33 ensures the filter assembly 3 It does not leave the funnel assembly 2, is easy to use, and is user-friendly.
  • the invention also has the function of being able to adjust the volume of the brewing chamber 21, as shown in Fig. 1 and Fig. 2,
  • the screen holder 4 has a substantially cylindrical body 40, and the side walls of the body 40 are evenly distributed with three
  • the set of limiting slots 43 that is, each of the two sets of limiting slots 43 and the center of the body 40 is 120 degrees.
  • Each set of limiting slots 43 has at least two latching slots arranged along the axial direction of the body 40 and a switching slot 430 communicating with each of the latching slots, the first card position in the embodiment shown in FIG.
  • the slot 431 and the second latching slot 432, and the switching slot 430 on the same side of the first latching slot 431 and the second latching slot 432.
  • the inside of the funnel unit 2 is provided with three protrusions 22 corresponding to the position of the limiting groove 43 of the screen holder 4.
  • the three protrusions 22 can be respectively embedded in In one of the latching slots of the limiting slot 43, the height adjustment of the screen bracket 4 relative to the funnel assembly 2 is achieved, thereby adjusting the volume of the brewing chamber 21.
  • the number of the limiting slots 43 and the number of corresponding bumps 22 are not limited to three groups, as long as the above functions can be achieved.
  • an elastic complex can also be provided.
  • the position member in particular, is further provided with a stud 44 between the two limiting slots 43 of the body 40 of the filter holder 4, and the stud 44 extends outward in the radial direction of the body 40.
  • the interior of the funnel assembly 2 is provided with a fixing member 23 at a predetermined distance from the protruding post 44, and an adjusting spring 45 is connected between the protruding post 44 and the fixing member 23.
  • the adjustment spring 45 can extend in a horizontal direction such that the screen support 4 can be pulled back in the horizontal direction.
  • the adjustment spring 45 can cause the screen bracket 4 to automatically slide into the other slot and fit tightly.
  • the present invention is easier to assemble than the other structures employing the elastic returning member, and the structure is stable, the adjusting spring 45 is not easily peeled off, and the service life is long.
  • the rotating sleeve 46 can be fixedly connected under the filter bracket 4, so that the user can easily rotate the filter bracket 4 by holding the rotating sleeve 46, thereby changing the positional relationship between the bump 22 and the card slot.
  • the volume of the brewing chamber 21 is adjusted.
  • the filter holder 4 and the rotating sleeve 46 can also be integrally formed.
  • the outer portion of the rotary sleeve 46 may be provided with a rough texture or various structures capable of increasing the frictional resistance.
  • the working principle of the invention for adjusting the volume function of the brewing chamber 21 is that it is only necessary to hold the rotating sleeve 46 and horizontally rotate the rotating sleeve 46, at which time the projection 22 of the funnel assembly 2 is disengaged from the latching slot thereof and Slide into the switching slot 430, and then push up or down the filter holder 4 according to the brewing requirement.
  • the rotating sleeve 46 is gently loosened, and the adjusting spring 45 is extended in the horizontal direction, so that the filter holder 4 is applied.
  • the screen support 4 will rotate in the opposite direction under the action of the adjusting spring 45 and slide the lug 22 into the designated latching groove to complete the adjustment of the volume of the brewing chamber 21, thereby brewing differently. Amount of coffee.
  • the coffee powder 5 is automatically dropped by its own gravity.
  • the limiting block 33 ensures that the filter assembly 3 does not come off the funnel assembly 2, is convenient to use, and is user-friendly in design.
  • the rest rod 312 is sleeved with a return spring 32 , and one end of the return spring 32 abuts against the filter holder 4 , and the other end of the return spring 32 abuts on the limiting block 33 .
  • the limiting block 33 is disposed in the screen bracket 4 so as to be movable up and down.
  • the lower portion of the filter frame 4 is provided with a socket 47, and a position limit table is arranged at a central portion of the socket 47. 42.
  • the limiting block 33 includes an insertion portion 331 and a limiting portion 332 which are sequentially connected in the upper and lower directions, and the limiting portion 332 is disposed corresponding to the limiting base 42.
  • the working principle of the powder falling function of the embodiment is as follows: as shown in FIG. 6 and FIG. 7, after the brewing coffee is completed, the brewing head 1 is reset upward, because the brewing head 1 releases the pressure on the coffee powder 5 because The position of the return spring 32 in this embodiment is different from that of the first embodiment. Therefore, the screen assembly 3 does not automatically pop up in this embodiment. Before the powder is not operated in this embodiment, the coffee powder 5 is still placed in the funnel assembly 2.
  • the funnel assembly 2 is turned over, the external force presses the limiting block 33, and the insertion portion 331 moves downward in the insertion hole 47, and when the limiting portion 332 moves to the limiting station 42
  • the limit block 33 stops moving downward, during the downward movement of the limit block 33 as a whole, the push rod 312 and the tray 311 are moved downward, and the coffee powder 5 is pushed out of the funnel assembly 2 and falls out under the force of gravity. .
  • the return spring 32 is reset, and the lever 312 and the tray 311 are pulled back.
  • the advantage of this embodiment is that, because the position of the return spring 32 is different from that of the first embodiment, the screen assembly 3 does not automatically pop up in this embodiment, causing the coffee powder 5 to fall off when it does not reach the designated position, and the use convenience. Greatly improved.
  • the powdered coffee funnel of the present invention can be used in a coffee machine.
  • the coffee machine is therefore simple in structure and convenient to use.
  • the compacted coffee powder cake is ejected by means of the floating filter assembly, and the coffee powder cake in the coffee funnel can be easily removed when the funnel assembly is turned over, the powder falling function is realized, the use is very convenient, and the cleaning effect is remarkable.
  • the volume of the brewing chamber can be adjusted, thereby making different amounts of coffee, and a multi-purpose machine can be used.

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

Abstract

一种落粉咖啡漏斗和使用它的咖啡机，其中落粉咖啡漏斗包括漏斗组件(2)，漏斗组件(2)内具有一个可浮动的滤网组件(3)，滤网组件(3)的下方由能够调节高度地安装于漏斗组件(2)内的滤网支架(4)弹性支撑，此外，滤网支架(4)能够调节高度地安装于漏斗组件(2)内。借助于浮动的滤网组件(3)弹出被压实的咖啡粉饼，在翻转漏斗组件(2)时能够轻松去除咖啡漏斗内的咖啡粉饼，实现自动落粉功能，使用非常方便，而且清理效果显著；此外借助于漏斗组件(2)内的凸块(22)以及滤网支架(4)上的卡位槽，能够调节冲泡腔的容积，从而制作不同量的咖啡，一机多用。

Description

一种落粉咖啡漏斗和使用其的咖啡机 技术领域
本发明涉及一种咖啡机，特别涉及一种具有落粉咖啡漏斗的咖啡机。
背景技术
随着生活水平的提高，咖啡逐渐成为人们生活中常见的饮品。而由于生活节奏的加快，能够快速冲泡咖啡的咖啡机受到人们的喜爱。其中，为了获得更好口感的咖啡，出现了一种压力咖啡机，其是通过对咖啡粉进行按压而使咖啡粉具有适当的紧密度进而获得良好的口感。中国实用新型专利ZL200820302628.7就提出了一种咖啡机，其壳体内设有磨豆机构、冲泡机构和供水系统；冲泡机构包括：可放入咖啡粉的冲泡容器，冲泡容器上方设有带注水通道的冲泡头。由于冲泡容器可拆卸地设于卡座上，使得冲泡容器清洗方便。
然而，该咖啡机配置的冲泡容器煮完咖啡后，冲泡容器内的咖啡粉已经被按压成咖啡粉饼，非常坚硬，要将容器内的已经压实的咖啡粉饼清除非常困难，通常要用力敲击或用刮粉器进行清理，使用非常不方便，而且清理效果也不佳。
此外，该咖啡机如果需要制作不同量的咖啡，例如单杯或双杯时，必须配备两种不同深度的滤网实现。而这些滤网作为单独的附件，在储存和保管上不太方便，并且更换也比较麻烦。
发明内容
针对上述问题，本发明提出了一种落粉咖啡漏斗和使用其的咖啡机，其不仅能够轻松去除咖啡漏斗内的咖啡粉饼，而且能够调节冲泡腔的容积，从而制作不同量的咖啡。
本发明提供一种落粉咖啡漏斗，其中，包括漏斗组件，漏斗组件内具有一个可浮动的滤网组件，滤网组件的下方由安装于漏斗组件内的滤网支架弹性支撑。
本发明提供一种落粉咖啡漏斗，其中，所述的滤网组件具有托盘及位于托盘下方的托杆，托盘的上表面与漏斗组件的内壁相配合成冲泡腔，且托盘的上表面边缘与漏斗组件的内壁能够实现滑动密封；所述滤网支架的中心具有通孔，所述托杆由上向下穿过通孔，所述通孔的周围具有不贯通的环槽，托杆上套设 有复位弹簧，复位弹簧的一端顶抵于托盘，复位弹簧的另一端顶抵于滤网支架的环槽。
本发明提供一种落粉咖啡漏斗，其中，所述托杆的尾端与限位块固定连接，限位块的最大径向尺寸大于通孔的孔径。
作为本发明提供一种落粉咖啡漏斗的另一种实施方式，所述滤网组件包括托盘及连接托盘下表面的托杆，托盘的上表面与漏斗组件的内壁相配合成冲泡腔，且托盘的边缘与漏斗组件的内壁滑动密封；所述滤网支架的中心具有通孔，所述托杆由上向下穿过通孔与限位块固定连接，所述托杆上套设有复位弹簧，复位弹簧的一端抵设于滤网支架上，复位弹簧的另一端抵设于限位块上，所述限位块可上下移动地设于滤网支架内。
所述滤网支架下部设有插孔，插孔中部位置设有限位台，所述限位块包括上下依次连接的插部和限位部，所述限位部与限位台对应设置。
本发明提供一种落粉咖啡漏斗，其中，所述的漏斗组件的冲泡腔内部由至少两级不同内径的圆柱腔体构成，且冲泡腔上方腔体的内径大于下方腔体的内径，所述托盘始终处于冲泡腔的下方腔体内。
本发明提供一种落粉咖啡漏斗，其中，所述的滤网支架能够调节高度地安装于漏斗组件内。
本发明提供一种落粉咖啡漏斗，其中，所述的滤网支架具有本体，本体的侧壁上均布有至少一组限位槽，每组限位槽均具有沿本体的轴向布置的至少两个卡位槽以及与每个卡位槽均连通的切换槽；所述的漏斗组件内部对应于滤网支架的限位槽的位置设有至少一个凸块，所述凸块能够嵌入于限位槽的其中一个卡位槽中。
本发明提供一种落粉咖啡漏斗，其中，所述本体上设有凸柱，凸柱沿本体的径向方向向外延伸；所述的漏斗组件的内部距离凸柱一段预设距离处设有固定件，在凸柱与固定件之间连接有调节弹簧。
本发明提供一种落粉咖啡漏斗，其中，所述的调节弹簧沿水平方向延伸。
本发明提供一种落粉咖啡漏斗，其中，所述滤网支架的下方设有旋转套。
本发明还提供一种咖啡机，其中，所述咖啡机使用了所述的落粉咖啡漏斗。
本发明的有益效果是：
1、借助于浮动的滤网组件弹出被压实的咖啡粉饼，在翻转漏斗组件时能够轻松去除咖啡漏斗内的咖啡粉饼，实现自动落粉功能，使用非常方便，而且清理效果显著。
2、借助于漏斗组件内的凸块以及滤网支架上的卡位槽，能够调节冲泡腔的容积，从而制作不同量的咖啡，一机多用。
附图说明
在下文中将基于实施例并参考附图来对本发明进行更详细的描述。其中：
图1为本发明的落粉咖啡漏斗的分解图；
图2为本发明添加咖啡粉时的示意图；
图3为本发明冲泡头填压咖啡粉后的示意图；
图4为本发明翻转漏斗掉落咖啡饼的示意图；
图5为本发明另一实施例的落粉咖啡漏斗的分解图；
图6为本发明另一实施例冲泡头填压咖啡粉后的示意图；
图7为本发明另一实施例翻转漏斗掉落咖啡饼的示意图。
附图标记说明：1-冲泡头；11-冲泡头密封圈；2-漏斗组件；21-冲泡腔；22-凸块；23-固定件；3-滤网组件；31-托架；311-托盘；312-托杆；32-复位弹簧；33-限位块；34-锁紧螺钉；4-滤网支架；41-通孔；42-环槽；43-限位槽；430-切换槽；431-第一卡位槽；432-第二卡位槽；44-凸柱；45-调节弹簧；46-旋转套；5-咖啡粉。
具体实施方式
下面将结合附图对本发明作进一步说明。
实施一
首先如图1和图2所示，本发明提供一种落粉咖啡漏斗，其主要包括漏斗组件2，漏斗组件2内具有一个可浮动的滤网组件3，滤网组件3的下方由滤网支架4支撑，且滤网支架4可调节高度地安装于漏斗组件2内。
所述的滤网组件3具有纵向截面大致呈T形的托架31。具体而言，托架31具有托盘311及位于托盘311下方的托杆312，托盘311的上表面与漏斗组件2的内壁相配合成为用于承装咖啡粉5的冲泡腔21，且托盘311的上表面边缘与漏斗组件2的内壁能够实现滑动密封。具体为，所述托盘311的上表面边缘为 软质材料，例如橡胶，且托盘311的上表面边缘的直径略大于漏斗组件2的内壁内径，以实现冲泡腔21底部的良好密封；或者，所述的托盘311的上表面边缘可设有滑动密封圈(图中未详示)，滑动密封圈的外径略大于漏斗组件2的内壁内径，同样能够实现冲泡腔21底部的良好密封。
所述滤网支架4的中心具有通孔41，所述托杆312由上向下穿过通孔41并且托杆312的尾端与限位块33固定连接。限位块33的最大径向尺寸大于通孔41的孔径，因此限位块33能够对托杆312实现限位作用，确保托杆312无法脱离通孔41。
所述通孔41的周围具有不贯通的环槽42，环槽42的开口朝向托架31的方向。所述滤网组件3的托杆312上套设有复位弹簧32，复位弹簧32的一端顶抵于托盘311的下方，复位弹簧32的另一端顶抵于滤网支架4的环槽42内。由于滤网支架4固定于漏斗组件2内，因此滤网组件3受复位弹簧32的顶推作用，在漏斗组件2内是浮动的，而所述的限位块33能够限制滤网组件3浮动的高度。
其中，所述的限位块33上具有穿孔，而所述的托杆312的尾端内具有螺纹孔，可通过锁紧螺钉34穿过限位块33的穿孔再与托杆312的螺纹孔进行螺纹连接，实现限位块33与托杆312的固定。但是，限位块33与托杆312的连接方式并不以此为限，还可以是限位块33直接与托杆312进行螺纹连接，或是通过卡接、榫接、焊接、粘接等其他连接方式进行连接。
此外，漏斗组件2的冲泡腔21内部由至少两级不同内径的圆柱腔体构成，且冲泡腔21上方腔体的内径大于下方腔体的内径，便于咖啡粉借助于浮动的滤网组件3由较小内径的腔体移动到较大内径的腔体时与腔体内壁产生间隙，易于掉落。此外，为了保证冲泡腔21底部的密封，借助于限位块33的限位，使得托盘311始终处于冲泡腔21的下方腔体内，确保冲泡腔21底部的密封良好。再有，所述的托架31的托盘311的上表面边缘的外径需略大于冲泡腔21的下方腔体的内径，或者托盘311的上表面边缘所安装的滑动密封圈的外径需略大于冲泡腔21的下方腔体的内径。因此在向冲泡腔21内添加咖啡粉5时，即使托盘311并未沉到冲泡腔21的底部，托盘311仍然与冲泡腔21的下方腔体保持底部密封状态，咖啡粉5也不会从托盘311的边缘掉落进入漏斗组件2内部。
所述的漏斗组件2的上方对应地设有冲泡头1，所述的冲泡头1上套设有冲 泡头密封圈11，冲泡头密封圈11的外径需大于冲泡腔21上方腔体的内径，因此冲泡头密封圈11能够密封冲泡头1与冲泡腔21之间的间隙，实现冲泡腔21的密闭。其中，所述的冲泡头密封圈11可以采用O型密封圈，但并不以此为限。
本实施例所具有的自动落粉功能的工作原理是：请如图3所示，在煮咖啡前，将适量咖啡粉5添加到漏斗组件2的冲泡腔21内，并将多余咖啡粉3刮平，然后作用冲泡头1向下运动，接触到咖啡粉5后，将咖啡粉5及浮动的滤网组件3向下压缩，直到冲泡头1运动到设定位置，此时，咖啡粉5的体积被压缩、压紧，再启动煮咖啡程序进行酿造咖啡。再请如图4所示，酿造咖啡完成后，冲泡头1向上复位，同时，因冲泡头1释放对咖啡粉5的压力，复位弹簧32作用滤网组件3向上弹出，将咖啡粉5移动到漏斗组件2上方内径较大的腔体内，此时，将漏斗组件2取出并翻转，咖啡粉5因自身的重力作用自动掉落，与此同时，限位块33则确保滤网组件3不会脱离漏斗组件2，使用方便，设计人性化。
本发明还具有能够调节冲泡腔21容积的功能，具体请见图1和图2所示，所述的滤网支架4具有大体呈圆柱形的本体40，本体40的侧壁上均布有三组限位槽43，即每两组限位槽43与本体40的中心连线呈120°。每组限位槽43均具有沿本体40的轴向布置的至少两个卡位槽以及与每个卡位槽均连通的切换槽430，图1中所示的实施例中具有第一卡位槽431和第二卡位槽432，以及位于第一卡位槽431和第二卡位槽432同侧的切换槽430。
所述的漏斗组件2内部对应于滤网支架4的限位槽43的位置设有三个凸块22，当将滤网支架4装配于漏斗组件2内时，三个凸块22能够分别嵌入于限位槽43的其中一个卡位槽中，实现滤网支架4相对于漏斗组件2的高度调节，进而调节冲泡腔21的容积。当需要改变当前的冲泡腔21容积时，仅需旋转漏斗组件2，即可将凸块22从第一卡位槽431(或者第二卡位槽432)中滑出进入切换槽430，再将凸块22滑入第二卡位槽432(或者第一卡位槽431)中，完成对冲泡腔21容积的调节。
当然，限位槽43的数量以及相对应的凸块22的数量并不以三组为限，只要能够实现上述功能即可。
再有，为了更加省力的实现调节冲泡腔21容积的功能，还可以设置弹性复 位件，具体为，在滤网支架4的本体40在任意两个限位槽43之间还设有凸柱44，凸柱44沿本体40的径向方向向外延伸。所述的漏斗组件2的内部距离凸柱44一段预设距离处设有固定件23，在凸柱44与固定件23之间连接有调节弹簧45。在优选实施例中，所述的调节弹簧45可以沿水平方向延伸，使得滤网支架4能够沿水平方向被拉回。当凸块22需要从其中一个卡位槽滑入另一个卡位槽时，调节弹簧45能够促使滤网支架4自动滑入另一个卡位槽中且紧密配合。此外，采用调节弹簧45的弹性复位件结构，相比于其他采用弹性复位件的结构而言，本发明更易于装配，而且结构稳固，调节弹簧45不易脱落，使用寿命长。
此外，所述滤网支架4的下方还可以固定连接旋转套46，便于用户握住旋转套46即可轻易旋转滤网支架4，进而改变凸块22与卡位槽之间的位置关系，以调节冲泡腔21的容积。当然，所述的滤网支架4与旋转套46还可以一体成型。
为了方便旋转旋转套46，旋转套46的外部还可设有粗糙的纹路，或者各种能够增大摩擦阻力的结构。
本发明所具有的调节冲泡腔21容积功能的工作原理是：仅需握住旋转套46并水平旋转旋转套46，此时漏斗组件2的凸块22脱离其所卡紧的卡位槽并滑入到切换槽430，而后依据冲泡要求向上顶推或者向下拖拽滤网支架4，此时轻轻松开旋转套46，由于调节弹簧45沿水平方向延伸因此向滤网支架4施加了水平方向的拉力，滤网支架4即会在调节弹簧45的作用下反方向旋转并使凸块22滑入到指定的卡位槽中，完成冲泡腔21容积的调节，进而冲泡出不同量的咖啡。
咖啡粉5因自身的重力作用自动掉落，与此同时，限位块33则确保滤网组件3不会脱离漏斗组件2，使用方便，设计人性化。
实施二
本实施例与实施一不同之处在于复位弹簧32的设置位置以及限位块33与滤网支架4的配合连接结构，其它结构均相同，不做重复描述。
如图5-图7所示，所述托杆312上套设有复位弹簧32，复位弹簧32的一端抵设于滤网支架4上，复位弹簧32的另一端抵设于限位块33上，所述限位块33可上下移动地设于滤网支架4内。
更具体地，所述滤网支架4下部设有插孔47，插孔47中部位置设有限位台 42。所述限位块33包括上下依次连接的插部331和限位部332，所述限位部332与限位台42对应设置。
本实施例所具有的落粉功能的工作原理是：请如图6和图7所示，酿造咖啡完成后，冲泡头1向上复位，因冲泡头1释放对咖啡粉5的压力，因为本实施例中复位弹簧32的位置与实施例一不同，故本实施例中滤网组件3不会自动向上弹起，在本实施例没有操作倒粉前，咖啡粉5仍然置于漏斗组件2内，此时，将本发明移至垃圾桶前，将漏斗组件2翻转，外力按压限位块33，插部331在插孔47向下移动，当限位部332移至限位台42处时，限位块33停止向下移动，在限位块33整体向下移动过程中，推动托杆312和托盘311下方移动，咖啡粉5被推出漏斗组件2外，并在重力作用下掉出。后去除外力，复位弹簧32复位，拉动托杆312和托盘311回位。
本实施例的优点在于，因为复位弹簧32的位置与实施例一不同，故本实施例中滤网组件3不会自动向上弹起，造成咖啡粉5在没有到达指定位置时洒落，使用便利度极大地提高。
虽然没有显示出，但是本发明的落粉咖啡漏斗可以用于咖啡机。这种咖啡机也因此结构简单、使用方便。
综上所述，本发明的有益效果是：
1、借助于浮动的滤网组件弹出被压实的咖啡粉饼，在翻转漏斗组件时能够轻松去除咖啡漏斗内的咖啡粉饼，实现落粉功能，使用非常方便，而且清理效果显著。
2、借助于漏斗组件内的凸块以及滤网支架上的卡位槽，能够调节冲泡腔的容积，从而制作不同量的咖啡，一机多用。
虽然已经参考优选实施例对本发明进行了描述，但在不脱离本发明的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本发明并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (12)

  1. 一种落粉咖啡漏斗，其特征在于，包括漏斗组件，漏斗组件内具有一个可浮动的滤网组件，滤网组件的下方由安装于漏斗组件内的滤网支架弹性支撑。
  2. 根据权利要求1所述的落粉咖啡漏斗，其特征在于，所述的滤网组件具有托盘及位于托盘下方的托杆，托盘的上表面与漏斗组件的内壁相配合成冲泡腔，且托盘的上表面边缘与漏斗组件的内壁能够实现滑动密封；所述滤网支架的中心具有通孔，所述托杆由上向下穿过通孔，所述通孔的周围具有不贯通的环槽，托杆上套设有复位弹簧，复位弹簧的一端顶抵于托盘，复位弹簧的另一端顶抵于滤网支架的环槽。
  3. 根据权利要求2所述的落粉咖啡漏斗，其特征在于，所述托杆的尾端与限位块固定连接，限位块的最大径向尺寸大于通孔的孔径。
  4. 根据权利要求1所述的落粉咖啡漏斗，其特征在于，所述滤网组件包括托盘及连接托盘下表面的托杆，托盘的上表面与漏斗组件的内壁相配合成冲泡腔，且托盘的边缘与漏斗组件的内壁滑动密封；所述滤网支架的中心具有通孔，所述托杆由上向下穿过通孔与限位块固定连接，所述托杆上套设有复位弹簧，复位弹簧的一端抵设于滤网支架上，复位弹簧的另一端抵设于限位块上，所述限位块可上下移动地设于滤网支架内。
  5. 根据权利要求2所述的自动落粉咖啡漏斗，其特征在于，所述滤网支架下部设有插孔，插孔中部位置设有限位台，所述限位块包括上下依次连接的插部和限位部，所述限位部与限位台对应设置。
  6. 根据权利要求2或4所述的落粉咖啡漏斗，其特征在于，所述的漏斗组件的冲泡腔内部由至少两级不同内径的圆柱腔体构成，且冲泡腔上方腔体的内径大于下方腔体的内径，所述托盘始终处于冲泡腔的下方腔体内。
  7. 根据权利要求6所述的落粉咖啡漏斗，其特征在于，所述的滤网支架能够调节高度地安装于漏斗组件内。
  8. 根据权利要求7所述的落粉咖啡漏斗，其特征在于，所述的滤网支架具有本体，本体的侧壁上均布有至少一组限位槽，每组限位槽均具有沿本体的轴向布置的至少两个卡位槽以及与每个卡位槽均连通的切换槽；所述的漏斗组件内部对应于滤网支架的限位槽的位置设有至少一个凸块，所述凸块能够嵌入于限位槽的其中一个卡位槽中。
  9. 根据权利要求6所述的落粉咖啡漏斗，其特征在于，所述本体上设有凸柱，凸柱沿本体的径向方向向外延伸；所述的漏斗组件的内部距离凸柱一段预设距离处设有固定件，在凸柱与固定件之间连接有调节弹簧。
  10. 根据权利要求6所述的落粉咖啡漏斗，其特征在于，所述的调节弹簧沿水平方向延伸。
  11. 根据权利要求6所述的落粉咖啡漏斗，其特征在于，所述滤网支架的下方设有旋转套。
  12. 一种咖啡机，其特征在于，所述咖啡机使用了根据权利要求1至5中任一项所述的落粉咖啡漏斗。
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