Novel cold brewing coffee machine

Abstract

The utility model relates to the technical field of coffee machines, in particular to a novel cold brewing coffee machine which comprises a machine base, and a driving device is arranged in the machine base. The stirring cup is detachably installed on the machine base, a filter basket is detachably installed in the stirring cup, the filter basket is rotatably arranged in the stirring cup, and a gap is reserved between the periphery of the filter basket and the inner wall of the stirring cup; the filter basket is driven by a driving device to rotate, a lower rotating shaft is fixed on a bottom plate of the filter basket, stirring blades are fixed at the upper end of the lower rotating shaft and located in the filter basket, the lower end of the lower rotating shaft is located between the bottom plate of the filter basket and a bottom plate of the stirring cup, and the lower end of the lower rotating shaft and the bottom plate of the stirring cup are limited. According to the arrangement, the stirring blades and the filter basket are fixed into a whole through the lower rotating shaft, the whole filter basket rotates relative to the stirring cup under the driving action of the driving device, the stirring effect is better, and the brewing efficiency of coffee liquid can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee machines, in particular to a novel cold brew coffee machine. Background Art

[0002] At present, most of the existing coffee machines on the market use hot water to brew coffee powder. Hot water brewing coffee powder will decompose the tannins in the coffee and affect the taste. Cold water is used to soak the ground coffee powder and then extract it. During the process, because the coffee powder does not come into contact with hot water, the tannins in it will almost not be decomposed at all. Therefore, the taste will be particularly pure, smooth, and not sour. Therefore, cold brew coffee machines came into being.

[0003] For example, a Chinese utility model patent with authorization announcement number CN209574387U discloses a cold brew coffee machine, including a stirring cup, which is provided with a bottle mouth connected to the outside, and also includes a magnetic stirrer and a magnetic stirring seat. A filter liner is suspended in the stirring cup, and the bottom of the filter liner is suspended in the stirring cup, with a gap between the outer periphery of the filter liner and the inner wall of the stirring cup. The magnetic stirrer includes a rotating shaft and a transmission magnetic block with a magnetic sheet built in that rotates with the rotating shaft. The rotating shaft is axially arranged and rotatably connected to the bottom of the filter liner, the upper end of the rotating shaft extends into the filter liner and is connected to a stirring knife, the transmission magnetic block is located on the outer side of the bottom of the filter liner, the stirring cup is placed flat on the magnetic stirring seat, a motor is arranged in the magnetic stirring seat, a circular magnetic block is arranged on the motor output shaft, and the circular magnetic block and the magnetic sheet are magnetically attracted and transmitted to each other. The prior art connects the stirring blade with the magnetic stirrer, places the stirring cup in the middle of the magnetic stirring base, and uses the motor in the magnetic stirring base to drive the circular magnetic block of the stirring base, and then uses the magnetic principle to drive the magnetic stirrer and the stirring blade in the stirring cup to rotate together. However, the prior art stirs the inside of the filter liner with the stirring blade, and the stirring efficiency is low, which in turn affects the brewing efficiency of the coffee liquid.

[0004] Therefore, there is still room for improvement and development in the existing technology. Utility Model Content

[0005] In order to solve the problems of the prior art, the utility model provides a novel cold brew coffee machine, in which the stirring blade and the filter basket are fixed as one through a lower rotating shaft. Under the driving action of the driving device, the filter basket as a whole rotates relative to the stirring cup, so that the stirring effect is better and the brewing efficiency of the coffee liquid can be improved.

[0006] In order to achieve the above purpose, the technical solution applied by the utility model is as follows:

[0007] A novel cold brew coffee machine comprises a machine base, wherein a driving device is arranged in the machine base; a stirring cup, wherein the stirring cup is detachably mounted on the machine base, wherein a filter basket is detachably mounted in the stirring cup, wherein the filter basket is rotatably arranged in the stirring cup, and a gap is left between the periphery of the filter basket and the inner wall of the stirring cup; wherein the filter basket is driven to rotate by the driving device, wherein a lower rotating shaft is fixed on the bottom plate of the filter basket, wherein a stirring blade is fixed on the upper end of the lower rotating shaft, wherein the stirring blade is located in the filter basket, wherein the lower end of the lower rotating shaft is located between the bottom plate of the filter basket and the bottom plate of the stirring cup, and wherein the lower end of the lower rotating shaft and the bottom plate of the stirring cup are limitedly arranged.

[0008] According to the above scheme, a raised fulcrum bump is formed on the lower surface of the bottom plate of the mixing cup, a lower limit groove is formed in the fulcrum bump, the lower end of the lower rotating shaft on the bottom plate of the filter basket is limited in the lower limit groove, and the lower rotating shaft can rotate relative to the lower limit groove.

[0009] According to the above scheme, a stirring cup cover is detachably installed on the opening of the stirring cup, an upper limit groove is provided on the inner wall of the stirring cup cover, an upper rotating shaft is fixed to the upper end of the filter basket, the upper end of the upper rotating shaft is limited in the upper limit groove, and the upper rotating shaft can rotate relative to the upper limit groove.

[0010] According to the above scheme, the filter basket includes a filter basket upper cover, a stainless steel outer net, a stainless steel inner woven net and a filter basket lower cover. The stainless steel outer net is wrapped and fixed to the outside of the stainless steel inner woven net to form a filter body. The upper end of the filter body is detachably fixedly connected to the filter basket upper cover, and the lower end of the filter body is detachably fixedly connected to the filter basket lower cover. An upper rotating shaft is fixed on the filter basket upper cover, and a lower rotating shaft is fixed on the filter basket lower cover.

[0011] According to the above solution, a plurality of upper drainage grooves are formed on the outer wall of the filter basket upper cover, and a plurality of lower drainage grooves are formed on the outer wall of the filter basket lower cover.

[0012] According to the above solution, a limiting sleeve is provided on the inner wall of the mixing cup, the inner wall of the limiting sleeve is arranged corresponding to the outer wall of the filter basket, and the filter basket can rotate relative to the limiting sleeve.

[0013] According to the above solution, the driving device includes a motor and a driving wheel, the output end of the motor is fixedly connected to the driving wheel, and the driving wheel is arranged in a transmission manner with the stirring blade.

[0014] According to the above solution, a lower magnet is fixed on the driving wheel, an upper magnet is fixed inside the stirring blade, and the driving wheel and the stirring blade are magnetically attracted to each other through the lower magnet and the upper magnet.

[0015] According to the above solution, a positioning groove is provided on the upper surface of the machine base, and the bottom of the stirring cup is mounted in the positioning groove.

[0016] According to the above solution, control knobs and power plugs are symmetrically arranged on both sides of the outer wall of the base, and a circuit board is arranged inside the base.

[0017] According to the above solution, a handle is provided on the outer wall of the stirring cup.

[0018] Beneficial effects of the utility model:

[0019] The utility model is arranged in this way, the stirring blade and the filter basket are fixed as a whole through the lower rotating shaft, and under the driving action of the driving device, the filter basket as a whole rotates relative to the stirring cup, the stirring effect is better, and the brewing efficiency of the coffee liquid can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a sectional view of the overall structure of the utility model;

[0022] Figure 3 yes Figure 2 A magnified image of position A in the middle;

[0023] Figure 4 yes Figure 2 Enlarged view of position B in the middle;

[0024] Figure 5 This is an exploded view of the filter basket of the utility model;

[0025] Figure 6 This is a top view of the filter basket of the utility model;

[0026] Figure 7 It is a bottom view of the filter basket of the utility model.

[0027] In the figure:

[0028] 1. Mixing cup; 2. Machine base; 3. Filter basket; 4. Filter basket upper cover; 5. Mixing cup cover; 6. Handle; 7. Control knob; 8. Upper shaft; 9. Positioning slot; 10. Motor; 11. Driving wheel; 12. Lower magnet; 13. Mixing blade; 14. Upper magnet; 15. Upper limit slot; 16. Lower shaft; 17. Lower limit slot; 18. Pivot bump; 19. Filter basket lower cover; 20. Limit sleeve; 21. Stainless steel outer net; 22. Stainless steel inner woven net; 23. Upper drainage trough; 24. Lower drainage trough. DETAILED DESCRIPTION

[0029] The technical solution of the utility model is described below in conjunction with the accompanying drawings and embodiments.

[0030] like Figures 1 to 7As shown, the utility model discloses a new type of cold brew coffee machine, comprising a machine base 2, in which a driving device is arranged; a stirring cup 1, in which the stirring cup 1 is detachably mounted on the machine base 2, a filter basket 3 is detachably mounted in the stirring cup 1, the filter basket 3 is rotatably arranged in the stirring cup 1, and a gap is left between the outer periphery of the filter basket 3 and the inner wall of the stirring cup 1; the filter basket 3 is driven to rotate by the driving device, a lower rotating shaft 16 is fixed on the bottom plate of the filter basket 3, a stirring blade 13 is fixed on the upper end of the lower rotating shaft 16, the stirring blade 13 is located in the filter basket 3, the lower end of the lower rotating shaft 16 is located between the bottom plate of the filter basket 3 and the bottom plate of the stirring cup 1, and the lower end of the lower rotating shaft 16 is limited with the bottom plate of the stirring cup 1. In this way, the stirring blade 13 is fixed to the filter basket 3 as a whole through the lower rotating shaft 16, and under the driving action of the driving device, the filter basket 3 rotates relative to the stirring cup 1 as a whole, the stirring effect is better, and the brewing efficiency of the coffee liquid can be improved.

[0031] In this embodiment, a raised fulcrum protrusion 18 is formed on the lower surface of the bottom plate of the mixing cup 1, and a lower limit groove 17 is formed in the fulcrum protrusion 18. The lower end of the lower rotating shaft 16 on the bottom plate of the filter basket 3 is limited in the lower limit groove 17, and the lower rotating shaft 16 can rotate relative to the lower limit groove 17. In this way, when the filter basket 3 is installed in the mixing cup 1, the lower end of the lower rotating shaft 16 extends into the lower limit groove 17 for limiting. In other words, under the cooperation of the lower rotating shaft 16 and the lower limit groove 17, the position of the lower end of the filter basket 3 in the mixing cup 1 is limited; when the filter basket 3 rotates, the lower end of the filter basket 3 rotates relative to the mixing cup 1 with the lower rotating shaft 16 as the fulcrum, and the lower rotating shaft 16 can be prevented from slipping out of the lower limit groove 17 during the rotation process, so that the filter basket 3 rotates more stably.

[0032] In this embodiment, a stirring cup cover 5 is detachably mounted on the opening of the stirring cup 1, and an upper limit groove 15 is provided on the inner wall of the stirring cup cover 5. An upper rotating shaft 8 is fixed to the upper end of the filter basket 3, and the upper end of the upper rotating shaft 8 is limited in the upper limit groove 15, and the upper rotating shaft 8 can rotate relative to the upper limit groove 15. In this way, when the stirring cup cover 5 is closed and fixed on the opening of the stirring cup 1, the upper end of the upper rotating shaft 8 extends into the upper limit groove 15 for limiting, and further, under the cooperation of the upper rotating shaft 8 and the upper limit groove 15, the position of the upper end of the filter basket 3 in the stirring cup 1 is limited; when the filter basket 3 rotates, the upper end of the filter basket 3 rotates relative to the stirring cup 1 with the upper rotating shaft 8 as the fulcrum, and the upper rotating shaft 8 can be prevented from slipping out of the upper limit groove 15 during the rotation process, and the rotation of the filter basket 3 is more stable.

[0033] More specifically, the upper end of the filter basket 3 is limited by the upper rotating shaft 8, and the lower end of the filter basket 3 is limited by the lower rotating shaft 16, thereby limiting the upper and lower ends of the filter basket 3, and the filter basket 3 is more stable during rotation.

[0034] It should be noted that the stirring cup cover 5 is used to open or close the opening of the stirring cup 1, which is convenient for adding water and preventing coffee liquid from splashing during operation. In actual applications, the stirring cup cover 5 is arranged to be positioned with the opening of the stirring cup 1. When the stirring cup cover 5 is covered on the opening of the stirring cup 1, it is locked by rotating a certain angle. When disassembling, it can be reversed by a certain angle. It is convenient to load and unload, and a loading and unloading guide mark is provided on the stirring cup cover 5; the filter basket upper cover 4 is used to open or close the upper end of the filter basket 3, which is convenient for adding coffee powder and limiting the upper end of the filter basket 3 by the upper rotating shaft 8; the filter basket lower cover 19 is used to assemble the lower rotating shaft 16 and the stirring blade 13 at the lower end of the filter basket 3. In actual applications, the filter basket upper cover 4 and the filter basket lower cover 19 are both threadedly connected to the filter basket 3, which is convenient for loading and unloading.

[0035] In this embodiment, the filter basket 3 includes a filter basket upper cover 4, a stainless steel outer net 21, a stainless steel inner woven net 22 and a filter basket lower cover 19. The stainless steel outer net 21 is wrapped and fixed to the outside of the stainless steel inner woven net 22 to form a filter net body. The upper end of the filter net body is detachably fixedly connected to the filter basket upper cover 4, and the lower end of the filter net body is detachably fixedly connected to the filter basket lower cover 19. The upper rotating shaft 8 is fixed to the filter basket upper cover 4, and the lower rotating shaft 16 is fixed to the filter basket lower cover 19. In this way, the filter basket 3 is designed into a double-layer structure, wherein the inner layer is the stainless steel inner woven net 22, which has a relatively small filter hole of 250 mesh, and is used for the primary filtration of the coffee liquid; the outer layer is the stainless steel outer net 21, which has a relatively large filter hole, and is used to support and fix the stainless steel inner woven net 22, so that it is not easily deformed and performs secondary filtration of the coffee liquid, and the filtration effect is better.

[0036] In actual applications, the stainless steel outer mesh 21 and the stainless steel inner woven mesh 22 are both hollow circular tube structures, and the filter basket upper cover 4 and the filter basket lower cover 19 are both structures with one end open and the other end closed; the detachable fixed connection can be achieved through a threaded structure or a buckle structure, and when the detachable fixed connection is a threaded structure, the rotation direction of the magnet is opposite to the screwing direction of the filter basket lower cover 19, so as to prevent the filter basket lower cover 19 from falling off during operation.

[0037] In this embodiment, a plurality of upper drainage grooves 23 are formed on the outer wall of the filter basket upper cover 4, and a plurality of lower drainage grooves 24 are formed on the outer wall of the filter basket lower cover 19. In this way, under the action of the upper drainage grooves 23 and the lower drainage grooves 24, the stirring and mixing effect is better.

[0038] In this embodiment, a limiting sleeve 20 is provided on the inner wall of the mixing cup 1, and the inner wall of the limiting sleeve 20 is arranged corresponding to the outer wall of the filter basket 3, and the filter basket 3 can rotate relative to the limiting sleeve 20. In this way, when the filter basket 3 is installed in the mixing cup 1, the limiting sleeve 20 limits the filter basket 3, so that the filter basket 3 and the mixing cup 1 are arranged concentrically.

[0039] In this embodiment, the driving device includes a motor 10 and a driving wheel 11, the output end of the motor 10 is fixedly connected to the driving wheel 11, and the driving wheel 11 is arranged in a transmission manner with the stirring blade 13. In this arrangement, when the motor 10 is working, the driving wheel 11 is driven to rotate, the driving wheel 11 drives the stirring blade 13 to rotate, the stirring blade 13 drives the lower rotating shaft 16 to rotate, and the lower rotating shaft 16 drives the filter basket 3 to rotate, thereby achieving the purpose of the driving device driving the filter basket 3 to rotate.

[0040] In this embodiment, a lower magnet 12 is fixed on the driving wheel 11, an upper magnet 14 is fixed inside the stirring blade 13, and the driving wheel 11 and the stirring blade 13 are magnetically attracted to each other by the lower magnet 12 and the upper magnet 14. In this way, the driving wheel 11 and the stirring blade 13 are driven by the magnetic attraction between the lower magnet 12 and the upper magnet 14.

[0041] It should be noted that, since magnets cannot pass food grade, the upper magnet 14 is fixedly sealed and installed in the stirring blade 13 so as not to come into contact with the coffee liquid, and the upper magnet 14 is wrapped in the plastic stirring blade 13 by injection molding or by ultrasonic welding. In actual applications, the number of the lower magnet 12 and the upper magnet 14 can be set to one, two or more according to actual needs.

[0042] In this embodiment, a positioning groove 9 is provided on the upper surface of the base 2, and the bottom of the blending cup 1 is mounted in the positioning groove 9. In this way, the bottom of the blending cup 1 is limited by the positioning groove 9, so that the blending cup 1 can be prevented from being thrown out of the base 2 during operation, which is safer to use.

[0043] In this embodiment, control knobs 7 and power plugs are symmetrically arranged on both sides of the outer wall of the base 2, and a circuit board is arranged inside the base 2. This arrangement makes reasonable use of the installation space of the base 2, and the control knob 7 and the power plug do not interfere with each other during operation, and the placement and operation are very convenient. The control knob 7 is used to start and stop the motor 10 and control the speed of the motor 10.

[0044] In this embodiment, a handle 6 is provided on the outer wall of the mixing cup 1. With this arrangement, the mixing cup 1 can be conveniently mounted and unmounted on the machine base 2 through the handle 6.

[0045] Working principle of this utility model:

[0046] Put clean water into the stirring cup 1, put coffee powder into the filter basket 3, start the motor 10, the motor 10 drives the driving wheel 11 to rotate, the driving wheel 11 drives the stirring blade 13 to rotate, the stirring blade 13 drives the lower rotating shaft 16 to rotate, the lower rotating shaft 16 drives the filter basket 3 to rotate, the filter basket 3 rotates as a whole relative to the stirring cup 1, the stirring effect is better, and the brewing efficiency of the coffee liquid can be improved.

[0047] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which belong to the protection scope of the present invention.

Claims

1. A new type of cold brew coffee machine, characterized in that: include: A machine base, wherein a driving device is arranged in the machine base; A blending cup, wherein the blending cup is detachably mounted on the machine base, a filter basket is detachably mounted in the blending cup, the filter basket is rotatably arranged in the blending cup, and a gap is left between the outer periphery of the filter basket and the inner wall of the blending cup; The filter basket is driven to rotate by a driving device, a lower rotating shaft is fixed on the bottom plate of the filter basket, a stirring blade is fixed on the upper end of the lower rotating shaft, the stirring blade is located in the filter basket, the lower end of the lower rotating shaft is located between the bottom plate of the filter basket and the bottom plate of the stirring cup, and the lower end of the lower rotating shaft and the bottom plate of the stirring cup are limited.

2. A novel cold brew coffee machine according to claim 1, characterized in that: A raised fulcrum bulge is formed on the lower surface of the bottom plate of the mixing cup, a lower limit groove is formed in the fulcrum bulge, the lower end of the lower rotating shaft on the bottom plate of the filter basket is limited in the lower limit groove, and the lower rotating shaft can rotate relative to the lower limit groove.

3. A novel cold brew coffee machine according to claim 2, characterized in that: A stirring cup cover is detachably mounted on the opening of the stirring cup, an upper limit groove is arranged on the inner wall of the stirring cup cover, an upper rotating shaft is fixed to the upper end of the filter basket, the upper end of the upper rotating shaft is limited in the upper limit groove, and the upper rotating shaft can rotate relative to the upper limit groove.

4. A novel cold brew coffee machine according to claim 3, characterized in that: The filter basket includes a filter basket upper cover, a stainless steel outer net, a stainless steel inner woven net and a filter basket lower cover. The stainless steel outer net is wrapped and fixed to the outside of the stainless steel inner woven net to form a filter body. The upper end of the filter body is detachably fixedly connected to the filter basket upper cover, and the lower end of the filter body is detachably fixedly connected to the filter basket lower cover. An upper rotating shaft is fixed on the filter basket upper cover, and a lower rotating shaft is fixed on the filter basket lower cover.

5. A novel cold brew coffee machine according to claim 4, characterized in that: A plurality of upper drainage grooves are formed on the outer wall of the filter basket upper cover, and a plurality of lower drainage grooves are formed on the outer wall of the filter basket lower cover.

6. A novel cold brew coffee machine according to claim 1, characterized in that: A limiting sleeve is arranged on the inner wall of the mixing cup, the inner wall of the limiting sleeve is arranged corresponding to the outer wall of the filter basket, and the filter basket can rotate relative to the limiting sleeve.

7. The novel cold brew coffee machine according to claim 1, characterized in that: The driving device comprises a motor and a driving wheel. The output end of the motor is fixedly connected to the driving wheel, and the driving wheel is arranged in a transmission manner with the stirring blade.

8. A novel cold brew coffee machine according to claim 7, characterized in that: A lower magnet is fixed on the driving wheel, an upper magnet is fixed in the stirring blade, and the driving wheel and the stirring blade are magnetically attracted to each other through the lower magnet and the upper magnet.

9. The novel cold brew coffee machine according to claim 1, characterized in that: A positioning groove is provided on the upper surface of the machine base, and the bottom of the stirring cup is mounted in the positioning groove.

10. The novel cold brew coffee machine according to claim 1, characterized in that: Control knobs and power plugs are symmetrically arranged on both sides of the outer wall of the base, and a circuit board is arranged inside the base.

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