A coffee fermentation device

By designing a coffee fermentation device that includes a fermentation tank, a stirring rack, and a cleaning tube, the problem of the inability to clean existing devices has been solved, enabling continuous processing and diversified fermentation of fermented coffee cherries, and improving fermentation efficiency and flexibility.

CN224394856UActive Publication Date: 2026-06-23PUER XINFENG AGRI DEV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PUER XINFENG AGRI DEV CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing coffee fermentation equipment is not convenient for cleaning the fermented coffee cherries, which makes it unable to meet the different fermentation needs of coffee and limits its use.

Method used

A coffee fermentation device was designed, comprising a fermentation tank, a stirring rack, a cleaning pipe, and a water supply mechanism. The device uses components such as a water pump and a servo motor to clean and stir the contents of the fermentation tank, enabling direct cleaning and turning of the coffee cherries during the fermentation process to meet different fermentation needs.

Benefits of technology

It enables continuous processing of fermented coffee cherries, allowing for direct washing and re-fermentation within the fermentation unit, thus improving fermentation efficiency and flexibility and meeting diverse needs in coffee fermentation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224394856U_ABST
    Figure CN224394856U_ABST
Patent Text Reader

Abstract

The utility model is suitable for coffee fermentation technical field provides a coffee fermentation device, include: for carrying out fermentation to coffee's fermentation tank, rotatory installation in the fermentation tank is used for stirring coffee cherry's stirring frame, set up in the fermentation tank, it is used for washing coffee cherry's washing pipe, set up on the washing pipe has a shower nozzle, assemble on the fermentation tank and the washing pipe's water adding mechanism, the water adding mechanism is used for adding water in the washing pipe, it is used for washing coffee. The utility model provides a coffee fermentation device can ferment coffee, and can wash the coffee after fermentation, thereby facilitating the continuous fermentation treatment of coffee, better satisfy the different needs of coffee fermentation, use is more flexible.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of coffee fermentation technology, and in particular to a coffee fermentation device. Background Technology

[0002] Coffee, as one of the world's three major beverages, is a popular drink worldwide, along with cocoa and tea.

[0003] In the process of coffee processing, washed coffee cherries and water need to be placed in a fermentation device for fermentation. However, during the fermentation of coffee cherries, some require a single fermentation, while others require rinsing after the first fermentation and then fermenting again. Some existing fermentation devices are inconvenient to clean the fermented coffee cherries, so the fermented coffee cherries need to be removed, cleaned, and then put back into the device for fermentation. This cannot better meet the different fermentation needs of coffee and is quite limited in its use. Utility Model Content

[0004] To address the technical problem mentioned in the background art that some existing fermentation devices are inconvenient for cleaning fermented coffee cherries, this utility model provides a coffee fermentation device.

[0005] The coffee fermentation device provided by this utility model includes: a fermentation tank for fermenting coffee; a stirring rack rotatably installed inside the fermentation tank for stirring coffee cherries; a cleaning pipe disposed inside the fermentation tank for cleaning coffee cherries, the cleaning pipe being equipped with a nozzle; and a water adding mechanism assembled on the fermentation tank and the cleaning pipe, the water adding mechanism being used to add water into the cleaning pipe for cleaning the coffee.

[0006] Preferably, the water adding mechanism includes: a water pump fixedly installed on the outer wall of the fermentation tank; a connecting pipe fixedly installed on the fermentation tank, the connecting pipe being connected to the water outlet of the water pump, and a flexible hose being provided on the connecting pipe, the flexible hose being connected to the connecting pipe.

[0007] Preferably, the fermenter and the cleaning pipe are provided with an adjustment mechanism for adjusting the water outlet angle of the nozzle. The adjustment mechanism includes: a first servo motor fixedly installed on the outer wall of the fermenter; two mounting shafts symmetrically rotatably installed on the fermenter, the two mounting shafts being fixedly connected to both ends of the cleaning pipe respectively, and the output shaft of the first servo motor being connected to one end of one of the mounting shafts through a coupling.

[0008] Preferably, the fermentation tank and the stirring rack are provided with a driving mechanism. The driving mechanism is used to drive the stirring rack to rotate and stir the coffee in the fermentation tank. The driving mechanism includes: a second servo motor fixedly installed on the outer wall of the fermentation tank; a connecting shaft rotatably installed on the fermentation tank. The output shaft of the second servo motor is connected to one end of the connecting shaft through a coupling. Both the connecting shaft and the stirring rack are fixedly fitted with bevel gears, and the two bevel gears mesh with each other.

[0009] Preferably, a drain pipe is provided on one side of the fermentation tank for draining the water used for coffee cherry fermentation, and a filter screen is provided inside the drain pipe for filtering the fermented coffee cherries in the fermentation tank.

[0010] Preferably, the bottom of the fermentation tank is provided with a discharge pipe, which is used to discharge the fermented coffee cherries.

[0011] Preferably, the fermenter has an installation cavity, and a placement pipe is provided in the installation cavity for guiding the circulating water.

[0012] Compared with related technologies, the coffee fermentation device provided by this utility model has the following beneficial effects:

[0013] This invention provides a coffee fermentation device that can ferment coffee and clean the fermented coffee, thereby facilitating continuous fermentation of coffee, better meeting different needs of coffee fermentation, and offering greater flexibility in use. Attached Figure Description

[0014] Figure 1 A front view schematic diagram of a preferred embodiment of the coffee fermentation device provided by this utility model;

[0015] Figure 2 This is a frontal sectional view of the present invention.

[0016] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure;

[0017] Figure 4 for Figure 2 The diagram shows an enlarged view of part B.

[0018] The following are the labels in the diagram: 1. Fermentation tank; 2. Stirring rack; 3. Cleaning pipe; 4. Nozzle; 5. Water pump; 6. Connecting pipe; 7. Hose; 8. First servo motor; 9. Mounting shaft; 10. Second servo motor; 11. Connecting shaft; 12. Bevel gear; 13. Drain pipe; 14. Filter screen; 15. Discharge pipe; 16. Mounting cavity; 17. Placement pipe. Detailed Implementation

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification and the foregoing drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification or the foregoing drawings are used to distinguish different objects, not to describe a specific order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] This utility model embodiment provides a coffee fermentation device, such as... Figure 1-4 As shown, the coffee fermentation apparatus includes: a fermentation tank 1 for fermenting coffee; a stirring rack 2 rotatably installed inside the fermentation tank 1 for stirring coffee cherries; a cleaning pipe 3 disposed inside the fermentation tank 1 for cleaning coffee cherries, the cleaning pipe 3 being equipped with a nozzle 4; and a water adding mechanism assembled on the fermentation tank 1 and the cleaning pipe 3, the water adding mechanism being used to add water into the cleaning pipe 3 for cleaning the coffee.

[0022] In this embodiment, when fermenting coffee, coffee cherries, water, and corresponding fermentation bacteria are placed into fermentation tank 1 for fermentation. During the fermentation process, the coffee cherries are turned over by a rotating stirring rack 2 according to actual needs, thereby improving the fermentation effect. Fermentation tank 1 is equipped with an exhaust pipe, a pressure gauge, and a pressure relief valve. The pressure gauge can monitor the pressure inside fermentation tank 1, the pressure relief valve can release the pressure inside fermentation tank 1, and the exhaust pipe is used to release the waste gas inside fermentation tank 1. When a second fermentation is required after the first fermentation is completed, the water used for fermentation is drained from fermentation tank 1, and water is added to the cleaning pipe 3 by activating the water adding mechanism. The water is sprayed onto the fermented coffee cherries in fermentation tank 1 through the nozzle 4, and the coffee cherries are turned over by the rotating stirring rack 2, thereby cleaning the fermented coffee cherries. After cleaning, water and corresponding additives are added to fermentation tank 1 to continue fermenting the coffee cherries. It is not necessary to remove the fermented coffee cherries for cleaning; the cleaning can be completed directly in the device before fermentation, which can better meet the different fermentation needs of coffee and is more flexible in use.

[0023] In a further preferred embodiment of the present invention, the water adding mechanism includes: a water pump 5 fixedly installed on the outer wall of the fermentation tank 1; a connecting pipe 6 fixedly installed on the fermentation tank 1, the connecting pipe 6 being connected to the water outlet end of the water pump 5, and a flexible hose 7 being provided on the connecting pipe 6, the flexible hose 7 being connected to the connecting pipe 6.

[0024] In this embodiment, if a second fermentation is required after the coffee cherries have completed their first fermentation in the fermentation tank 1, the water used for fermentation is drained from the fermentation tank 1. The inlet of the water pump 5 is connected to the corresponding water source pipe, and the water pump 5 is started. Water enters the cleaning pipe 3 through the connecting pipe 6 and the hose 7. The cleaning water is sprayed directly into the fermentation tank 1 through the nozzle 4 to rinse the coffee cherries, removing residual fermentation products and impurities from the surface, creating favorable conditions for the second fermentation. It is not necessary to remove the fermented coffee cherries for cleaning; they can be cleaned directly in the fermentation tank 1 before fermentation, which can better meet the different fermentation needs of coffee and is more flexible in use.

[0025] In a further preferred embodiment of this utility model, an adjustment mechanism is provided on the fermentation tank 1 and the cleaning pipe 3. The adjustment mechanism is used to adjust the water outlet angle of the nozzle 4. The adjustment mechanism includes: a first servo motor 8 fixedly installed on the outer wall of the fermentation tank 1; two mounting shafts 9 symmetrically rotatably installed on the fermentation tank 1, the two mounting shafts 9 being fixedly connected to both ends of the cleaning pipe 3 respectively, and the output shaft of the first servo motor 8 being connected to one end of one of the mounting shafts 9 through a coupling.

[0026] In this embodiment, the fermentation tank 1 can also be rinsed through the cleaning pipe 3. When rinsing the fermentation tank 1 with the cleaning pipe 3, the first servo motor 8 is started to rotate in both directions. The first servo motor 8 drives one of the mounting shafts 9 to rotate through the coupling. Since the two mounting shafts 9 are fixedly connected to the two ends of the cleaning pipe 3, the cleaning pipe 3 will swing back and forth with the mounting shafts 9, thereby changing the water outlet angle of the nozzle 4. This allows the nozzle 4 to thoroughly rinse the inside of the fermentation tank 1, improving the cleaning effect inside the fermentation tank 1.

[0027] In a further preferred embodiment of this utility model, a driving mechanism is provided on the fermentation tank 1 and the stirring rack 2. The driving mechanism is used to drive the stirring rack 2 to rotate and stir the coffee in the fermentation tank 1. The driving mechanism includes: a second servo motor 10 fixedly installed on the outer wall of the fermentation tank 1; and a connecting shaft 11 rotatably installed on the fermentation tank 1. The output shaft of the second servo motor 10 is connected to one end of the connecting shaft 11 through a coupling. Both the connecting shaft 11 and the stirring rack 2 are fixedly fitted with bevel gears 12, and the two bevel gears 12 mesh with each other.

[0028] In this embodiment, during the coffee fermentation process, when it is necessary to turn the coffee cherries in the fermentation tank 1, the second servo motor 10 is started. The output shaft of the second servo motor 10 drives the connecting shaft 11 to rotate through the coupling. With the meshing of the two bevel gears 12, the power is transmitted to the stirring rack 2, causing the stirring rack 2 to start rotating in the fermentation tank 1. The rotation of the stirring rack 2 can fully stir the coffee cherries in the fermentation tank 1, allowing the coffee cherries to fully contact the fermentation liquid, ensuring that the fermentation reaction can proceed evenly and fully, and avoiding inconsistent coffee quality due to local differences in fermentation conditions.

[0029] In a further preferred embodiment of the present invention, a drain pipe 13 is provided on one side of the fermentation tank 1. The drain pipe 13 is used to drain the water used for fermenting coffee cherries, and a filter screen 14 is provided inside the drain pipe 13. The filter screen 14 is used to filter the fermented coffee cherries in the fermentation tank 1.

[0030] In this embodiment, during the coffee fermentation process, when it is necessary to drain the wastewater in the fermentation tank 1, the drain pipe 13 is opened, and the wastewater will flow naturally to the drain pipe 13. When the wastewater flows through the filter screen 14 in the drain pipe 13, the filter screen 14 will filter it. Coffee cherries and larger impurities are intercepted and retained in the fermentation tank 1 by the filter screen 14, while the relatively clean wastewater after filtration is smoothly discharged through the drain pipe 13.

[0031] In a further preferred embodiment of the present invention, a discharge pipe 15 is provided at the bottom of the fermentation tank 1, and the discharge pipe 15 is used to discharge the fermented coffee cherries.

[0032] In this embodiment, when it is necessary to discharge the fermented coffee cherries, the discharge pipe 15 can be opened directly to discharge them.

[0033] In a further preferred embodiment of the present invention, the fermenter 1 is provided with an installation cavity 16, and a placement pipe 17 is provided in the installation cavity 16 for guiding the circulating water.

[0034] In this embodiment, when it is necessary to adjust the temperature inside the fermentation tank 1, the temperature inside the fermentation tank 1 can be controlled by circulating constant temperature water through the placement pipe 17. At the same time, the temperature inside the fermentation tank 1 can be monitored by the temperature sensor installed on the fermentation tank 1.

[0035] In summary, compared with related technologies, this device can ferment coffee and clean the fermented coffee, thus facilitating continuous fermentation of coffee, better meeting different needs of coffee fermentation, and offering greater flexibility in use.

[0036] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A coffee fermentation apparatus, characterized in that, include: Fermentation tanks used for fermenting coffee; Rotate the stirring rack installed inside the fermentation tank for stirring the coffee cherries; A cleaning tube, equipped with a nozzle, is installed inside the fermentation tank for cleaning coffee cherries. A water-adding mechanism is installed on the fermentation tank and the cleaning pipe, which is used to add water to the cleaning pipe and clean the coffee.

2. The coffee fermentation apparatus according to claim 1, characterized in that, The water supply mechanism includes: A water pump fixedly installed on the outer wall of the fermenter; A connecting pipe is fixedly installed on the fermenter, and the connecting pipe is connected to the outlet of the water pump. A flexible hose is provided on the connecting pipe, and the flexible hose is connected to the connecting pipe.

3. The coffee fermentation apparatus according to claim 1, characterized in that, The fermentation tank and the cleaning pipe are equipped with an adjustment mechanism, which is used to adjust the water outlet angle of the nozzle. The adjustment mechanism includes: A first servo motor is fixedly installed on the outer wall of the fermenter; Two mounting shafts are symmetrically rotated on the fermenter, and the two mounting shafts are respectively fixedly connected to both ends of the cleaning pipe. The output shaft of the first servo motor is connected to one end of one of the mounting shafts through a coupling.

4. The coffee fermentation apparatus according to claim 1, characterized in that, The fermentation tank and the stirring rack are equipped with a driving mechanism, which is used to drive the stirring rack to rotate and stir the coffee in the fermentation tank. The driving mechanism includes: A second servo motor is fixedly installed on the outer wall of the fermenter; The connecting shaft mounted on the fermenter is rotated. The output shaft of the second servo motor is connected to one end of the connecting shaft via a coupling. Both the connecting shaft and the stirring frame are fixedly fitted with bevel gears, and the two bevel gears mesh with each other.

5. The coffee fermentation apparatus according to claim 1, characterized in that, A drain pipe is provided on one side of the fermentation tank to drain the water used for coffee cherry fermentation. A filter screen is installed inside the drain pipe to filter the fermented coffee cherries in the fermentation tank.

6. The coffee fermentation apparatus according to claim 1, characterized in that, The fermentation tank is equipped with a discharge pipe at the bottom, which is used to discharge the fermented coffee cherries.

7. The coffee fermentation apparatus according to claim 1, characterized in that, The fermenter has an installation cavity, and a placement pipe is installed inside the installation cavity. The placement pipe is used to guide the circulating water.