Patent Application
20180368607
The disclosure relates to a beverage preparation device, more particularly, to a coffee powder compressing device for a coffee maker and a coffee maker having same.
According to the existing coffee makers, the coffee powder needed to be brewed are mainly pre-compressed manually or by means of an additional device, and then the pre-compressed coffee powder will be transferred into the coffee maker to make coffee drink. The present operation method has two defects: one defect is that the tightness of the compressed coffee powder is difficult to control when the coffee powder is compressed manually, thus it is hard to brew a coffee drink with consistent quality; the second defect is that the pre-compressed coffee powder should be spun into the machine manually, so as to seal the coffee powder, which is quite laborious.
In view of the situation in the prior art mentioned above, a coffee powder compressing device for a coffee maker and a coffee maker having same are provided in the disclosure, which solves the problem that the tightness of the compressed coffee powder is difficult to be controlled and the laborious problem when adopting the existing coffee powder pre-compressing methods.
In order to solve the technical problem above, the disclosure provides a coffee powder compressing device for a coffee maker, including:
an accommodating chamber, the accommodating chamber being provided with a side opening at a sidewall of the accommodating chamber and a top opening at a top of the accommodating chamber;
a filter assembly, the filter assembly being able to be put into the accommodating chamber and be taken out of the accommodating chamber through the side opening, the filter assembly being provided with a cavity configured to contain coffee powder;
a movable pressing block, a lower end of the movable pressing block being located into the top opening of the accommodating chamber, and the movable pressing block being able to reciprocally move between a first position and a second position, when the movable pressing block is situated at the second position, and the filter assembly is located into the accommodating chamber, an opening end of the cavity is sealed by the lower end of the movable pressing block;
a first sealing ring, the first sealing ring being disposed between the lower end of the movable pressing block and the opening end of the cavity, and a brewing chamber being formed by the first sealing ring, the movable pressing block and the filter assembly;
an extrusion portion protruding downwards is disposed on the lower end of the movable pressing block, when the movable pressing block is situated at the second position and the filter assembly is located into the accommodating chamber, the extrusion portion inserts into the cavity.
In one embodiment, when the movable pressing block is situated at the second position and the filter assembly is located into the accommodating chamber, a distance between a lower end surface of the extrusion portion and a surface of the opening end of the cavity ranges from 5 mm to 10 mm.
In one embodiment, the first sealing ring is fixed at the lower end of the movable pressing block, a limiting step for matching up with the opening end of the cavity is disposed on a periphery surface of the first sealing ring.
In one embodiment, a blocking net is disposed below the extrusion portion, a surrounding edge of the blocking net is fixed on the lower end of the sealing ring.
In one embodiment, the coffee powder compressing device further comprises a powder scraper blade, the powder scraper blade is disposed at a top of the side opening, the powder scraper blade is provided with at least one powder scraper surface traversing through the side opening for scraping the coffee powder.
In one embodiment, the powder scraper blade and the sidewall of the accommodating chamber is integrally formed, or the powder scraper blade is an individual component, the powder scraper blade is fixed on a sidewall of the accommodating chamber.
In one embodiment, sliding grooves extending along the direction for inserting or taking out the filter assembly are respectively disposed on two opposite inner walls of the accommodating chamber, flanges are disposed on the two sides of the filter assembly respectively to engage with the sliding grooves.
In one embodiment, the filter assembly includes a filter main body, a filter plate and a pressure boosting mechanism, the filter main body is provided with a cavity and a coffee outlet, a coffee flow exit is disposed on the underside of the cavity, the filter plate is disposed on the bottom of the cavity, the pressure boosting mechanism is disposed between the coffee flow exit and the coffee outlet.
In one embodiment, the movable pressing block is driven by a hydraulic driving device or an electro-mechanical driving device.
A coffee maker is provided in the disclosure, which includes a coffee powder compressing device for the coffee maker defined in any one of the above-mentioned embodiments.
According to the coffee powder compressing device for a coffee maker and a coffee maker having same provided by the present disclosure, since an extrusion portion protruding downwards is disposed at the lower end of the movable pressing block, when the movable pressing block is situated at the second position and the filter assembly is located into the accommodating chamber, the extrusion portion extends into the cavity to compress the coffee powder, thereby solving the problem that the tightness of the compressed coffee powder is difficult to be controlled and the laborious problem in the existing coffee powder pre-compressing methods.
The beneficial effects of additional technical features of the disclosure will be described in the detailed description of disclosed embodiment of the description.
The present disclosure will be described in more details with reference to the accompanying figures and embodiments. It should be noted that various embodiments and the features thereof can be combined with each other under the condition of no conflict.
As shown in
Referring to
Continuing to refer to
Referring to
In one embodiment, a water inlet 51 extending along the axial direction of the movable pressing block 5 is disposed on the movable pressing block 5. A blocking net 30 is disposed below the extrusion portion 5a, the surrounding edges of blocking net 30 are fixed at the lower end of the first sealing ring 6, and the coffee powder are prevented from accessing into the water inlet 51 by the blocking net 30.
The driving device for driving the movable pressing block 5 may be a hydraulic driving device. Referring to
The working principle of the coffee powder compressing device for the coffee maker in the embodiment of present invention is as follows:
First step, adding enough coffee powder into the cavity 12a of the filter assembly 17, and then inserting the filter assembly 17 to a brewing position along the sliding grooves 11d, and removing the excess coffee powder by the powder scraper blade.
Second step, driving the movable pressing block 5 moving towards the support frame for filter assembly 11 by a hydraulic driving device or an electro-mechanical driving device, so as to compress the coffee powder automatically. Meanwhile, a brewing cavity B is formed by the movable pressing block 5, the first sealing ring 6 and the filter assembly 17.
Third step, injecting pressurized hot water flow into the water inlet 51, the pressurized hot water flow may enter into the brewing chamber B for making the coffee drink, the pressure boosting mechanism disposed between the brewing chamber B and the coffee flow exit is configured to increase the pressure for brewing coffee.
Fourth step, stopping operating the pump after completing to make coffee drink, and getting through the pipe system and releasing the pressure in the hydraulic chamber A by the hydraulic control device, then the movable pressing block 5 may return to its initial position under the thrusting force by the spring, or the movable pressing block 5 may return to its initial position driven by a driving device. Finally, taking out the filter assembly 17, and discarding the coffee powder, then the whole process for making coffee drink is finished.
What described above are only some embodiments of the present invention, which is more specific and detailed, but it shall be understood that they are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that various modifications and replacements may be made therein without departing from the theory of the present disclosure, which should also be seen in the scope of the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201521020065.9 | Dec 2015 | CN | national |
This application is a continuation under 35 U.S.C. § 120 of international patent application PCT/CN2016/106252 filed on Nov. 17, 2016, which claims the benefit of the priority of Chinese Patent Application No. 201521020065.9, filed on Dec. 9, 2015, entitled “Coffee powder compressing device for coffee maker and coffee maker having same”, and the entire content of which is incorporated herein by reference.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2016/106252 | 11/17/2016 | WO | 00 |
