Low-temperature coffee liquid extraction machine

By designing a low-temperature coffee extraction machine, and utilizing stirring, cooling, and pressurizing devices, the problem of time-consuming and laborious cold brew coffee making was solved, achieving rapid extraction and impurity filtration, thus improving the practicality of the equipment.

CN224193296UActive Publication Date: 2026-05-05HEBEI TAIGU COFFEE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI TAIGU COFFEE CO LTD
Filing Date
2025-05-20
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The current cold brew coffee making process is time-consuming and laborious, and the containers take up a lot of space, making them impractical.

Method used

Design a low-temperature coffee extraction machine, including a stirring device, a cooling device, and a pressurizing device. The mixture is formed by stirring, cooling, and pressurizing, and impurities are filtered out using filter paper, thereby improving the practicality of the equipment.

Benefits of technology

It enables rapid extraction of coffee liquid and filtration of impurities, improving the practicality and efficiency of the equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224193296U_ABST
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Abstract

The utility model discloses a low-temperature coffee liquid extraction machine which comprises filter paper. The device further comprises a storage device, a stirring device, a cooling device and a pressurizing device, the stirring device is mounted at the bottom of the storage device, the filter paper is mounted in the storage device, the cooling device is mounted at the bottom of the stirring device, and the pressurizing device is mounted at the top of the storage device. Ice, coffee powder and purified water in the storage container are stirred through the stirring device to form a mixture, meanwhile, the mixture in the storage container is cooled through the cooling device, then the interior of the storage container is pressurized through the pressurizing device, fusion of the mixture is accelerated, coffee is formed, and after fusion of the mixture is completed, the coffee powder is added into the storage container. And the filtering mechanism is opened, impurities and particles in coffee are filtered through filter paper, then the coffee is discharged, and therefore the practicability of the equipment is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of low-temperature coffee extraction, and in particular to a low-temperature coffee extraction machine. Background Technology

[0002] Cold brew coffee, simply put, is cold-brewed coffee, made by steeping coffee grounds in cold water (low-temperature cold water is better). Most existing cold brew coffee is made by manually placing ice, coffee grounds, and purified water into a container, stirring it manually, and then refrigerating it at 0-5 degrees Celsius for at least 12 hours. After that, the mixture is filtered through filter paper to remove impurities and particles, and then the coffee is poured out to form cold brew coffee. This process is time-consuming and labor-intensive, and the container takes up a lot of space in the refrigerator, making it impractical. Therefore, a low-temperature coffee extraction machine is needed. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a low-temperature coffee extraction machine, which uses a stirring device to stir ice, coffee powder and pure water in a storage container to form a mixture, a cooling device to cool the mixture in the storage container, a pressurizing device to pressurize the inside of the storage container, a filtration mechanism to filter impurities and particulate matter in the coffee, and then discharges the coffee, thereby improving the practicality of the equipment.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0005] A low-temperature coffee extraction machine includes filter paper; it also includes a storage device, a stirring device, a cooling device, and a pressurizing device. The stirring device is installed at the bottom of the storage device, the filter paper is installed in the storage device, the cooling device is installed at the bottom of the stirring device, and the pressurizing device is installed at the top of the storage device. The storage device stores the mixture, the stirring device stirs the mixture, the cooling device cools the mixture, and the pressurizing device pressurizes the interior of the storage device.

[0006] The storage device includes a storage container, an insulation layer, a top cover, and a filter mechanism. The insulation layer is wrapped around the surface of the storage container, the top cover is threaded onto the top of the storage container, the filter mechanism is installed at the bottom of the side of the storage container, and the filter paper is installed in the filter mechanism.

[0007] Open the top cover and place ice, coffee powder, and purified water into the storage container in sequence. Then, replace the top cover. The stirring device stirs the ice, coffee powder, and purified water in the storage container to form a mixture. At the same time, the cooling device cools the mixture in the storage container. Then, the pressurizing device pressurizes the inside of the storage container to accelerate the fusion of the mixture and form coffee. After the mixture is fully fused, open the filtration mechanism to filter impurities and particles from the coffee through filter paper, and then discharge the coffee, thereby improving the practicality of the equipment.

[0008] Preferably, the stirring device includes a shell, a support tube, multiple sets of stirring shafts, multiple sets of vibration motors, a drive motor, and a transmission mechanism. The top of the shell is connected to the bottom of the insulation layer. The support tube is rotatably installed at the bottom of the storage container, and the top of the support tube extends into the interior of the storage container. One end of each of the multiple sets of stirring shafts is connected to the surface of the support tube, and each of the multiple sets of stirring shafts has a chamber inside. The multiple sets of vibration motors are respectively installed in the multiple sets of stirring shafts. The top of the drive motor is connected to the bottom of the insulation layer. The transmission mechanism is installed at the bottom of the support tube and the drive motor. Turning on the multiple sets of vibration motors causes the multiple sets of stirring shafts to vibrate. Then turning on the drive motor, the transmission mechanism drives the support tube to rotate the multiple sets of stirring shafts, stirring the mixture in the storage container, thereby improving the practicality of the equipment.

[0009] Preferably, the cooling device includes a refrigeration unit, the top of which is connected to the bottom of the outer casing, and the refrigeration pipe of the refrigeration unit extends between the storage container and the insulation layer; the refrigeration unit cools the mixture in the storage container, thereby improving the practicality of the equipment.

[0010] Preferably, the pressurizing device includes a screw, a rotary handle, a piston, and a vent valve. The screw is threadedly installed in the middle of the top cover, and the top end of the screw is connected to the bottom end of the rotary handle. The top end of the piston is rotatably connected to the bottom end of the screw, and the piston is located inside the storage container. The bottom end of the vent valve is connected to the top end of the top cover. By opening the vent valve and rotating the rotary handle, the piston is pressurized inside the storage container via the screw drive, thereby improving the convenience of the equipment.

[0011] Preferably, the filtration mechanism includes a first sealing shell, a second sealing shell, and a discharge valve. The right end of the second sealing shell is connected to the left end of the storage container, and the left end of the second sealing shell extends from the left end of the insulation layer. The right end of the second sealing shell is threaded onto the left end of the first sealing shell, and the right end of the discharge valve is connected to the left end of the second sealing shell. Filter paper is placed inside the second sealing shell, and then the second sealing shell is threaded onto the left end of the first sealing shell. After the mixture in the storage container is blended into coffee, the discharge valve is opened, the coffee is filtered through the filter paper, and then discharged through the discharge valve, thereby improving the practicality of the equipment.

[0012] Preferably, the transmission mechanism includes a gear ring and a gear. The gear ring is fitted onto the bottom of the support tube, the top end of the gear is connected to the bottom end of the drive motor, and the side end of the gear ring meshes with the side end of the gear. When the drive motor is turned on, the support tube rotates through the meshing of the gear and the gear ring, thereby improving the practicality of the equipment.

[0013] Preferably, the device also includes multiple adjustable bases, the tops of which are threaded to the bottom of the refrigeration unit; by rotating the multiple adjustable bases, the refrigeration unit can be leveled, thereby improving the practicality of the equipment.

[0014] Due to the adoption of the above technical solutions, the technological progress achieved by this utility model is as follows.

[0015] This invention uses a stirring device to stir ice, coffee powder, and purified water in a storage container to form a mixture. At the same time, a cooling device cools the mixture in the storage container. Then, a pressurizing device pressurizes the inside of the storage container to accelerate the fusion of the mixture and form coffee. After the mixture is fully fused, the filtration mechanism is opened to filter impurities and particles in the coffee through filter paper before the coffee is discharged, thereby improving the practicality of the equipment. Attached Figure Description

[0016] Figure 1 This is a front view cross-sectional structural diagram of the present invention;

[0017] Figure 2 This is a front view structural diagram of the present invention;

[0018] Figure 3 This is a front view enlarged cross-sectional structural diagram of the stirring shaft of this utility model;

[0019] Figure 4 This is an axonometric enlarged structural diagram of the top cover and piston of this utility model;

[0020] The components include: 1. Storage container; 2. Insulation layer; 3. Top cover; 4. Filter paper; 5. Outer shell; 6. Support tube; 7. Stirring shaft; 8. Vibration motor; 9. Drive motor; 10. Refrigeration unit; 11. Screw; 12. Rotary handle; 13. Piston; 14. Ventilation valve; 15. First sealing shell; 16. Second sealing shell; 17. Discharge valve; 18. Gear ring; 19. Gear; 20. Adjustable base. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Example 1

[0023] A low-temperature coffee extraction machine includes filter paper 4, a storage device, a stirring device, a cooling device, and a pressurizing device.

[0024] A stirring device is installed at the bottom of the storage device, filter paper 4 is installed in the storage device, a cooling device is installed at the bottom of the stirring device, and a pressurizing device is installed at the top of the storage device. The storage device stores the mixture, the stirring device stirs the mixture, the cooling device cools the mixture, and the pressurizing device pressurizes the inside of the storage device.

[0025] The storage device includes a storage container 1, an insulation layer 2, a top cover 3, and a filter mechanism. The insulation layer 2 is wrapped around the surface of the storage container 1, the top cover 3 is threaded onto the top of the storage container 1, the filter mechanism is installed at the bottom of the side of the storage container 1, and the filter paper 4 is installed in the filter mechanism.

[0026] The stirring device includes a shell 5, a support tube 6, multiple sets of stirring shafts 7, multiple sets of vibration motors 8, a drive motor 9, and a transmission mechanism. The top of the shell 5 is connected to the bottom of the insulation layer 2. The support tube 6 is rotatably installed at the bottom of the storage container 1, and the top of the support tube 6 extends into the interior of the storage container 1. One end of each of the multiple sets of stirring shafts 7 is connected to the surface of the support tube 6, and each of the multiple sets of stirring shafts 7 has a chamber inside. The multiple sets of vibration motors 8 are respectively installed in the multiple sets of stirring shafts 7. The top of the drive motor 9 is connected to the bottom of the insulation layer 2. The transmission mechanism is installed at the bottom of the support tube 6 and the drive motor 9.

[0027] The cooling device includes a refrigerator 10, the top of which is connected to the bottom of the outer casing 5, and the refrigeration pipe of the refrigerator 10 extends between the storage container 1 and the insulation layer 2.

[0028] Open the top cover 3 and put ice, coffee powder, and purified water into the storage container 1 in sequence. Then, reset the top cover 3, turn on the multiple sets of vibration motors 8 to make the multiple sets of stirring shafts 7 vibrate, and then turn on the drive motor 9. Through the transmission mechanism, the support tube 6 drives the multiple sets of stirring shafts 7 to rotate, stirring the mixture in the storage container 1. At the same time, the refrigeration unit 10 cools the mixture in the storage container 1. Then, the pressurization device pressurizes the inside of the storage container 1 to accelerate the fusion of the mixture and form coffee. After the mixture is fused, turn on the filtration mechanism and filter the impurities and particles in the coffee through the filter paper 4, and then discharge the coffee, thereby improving the practicality of the equipment.

[0029] Example 2

[0030] A low-temperature coffee extraction machine includes filter paper 4, a storage device, a stirring device, a cooling device, and a pressurizing device.

[0031] A stirring device is installed at the bottom of the storage device, filter paper 4 is installed in the storage device, a cooling device is installed at the bottom of the stirring device, and a pressurizing device is installed at the top of the storage device. The storage device stores the mixture, the stirring device stirs the mixture, the cooling device cools the mixture, and the pressurizing device pressurizes the inside of the storage device.

[0032] The storage device includes a storage container 1, an insulation layer 2, a top cover 3, and a filter mechanism. The insulation layer 2 is wrapped around the surface of the storage container 1, the top cover 3 is threaded onto the top of the storage container 1, the filter mechanism is installed at the bottom of the side of the storage container 1, and the filter paper 4 is installed in the filter mechanism.

[0033] The pressurizing device includes a screw 11, a rotating handle 12, a piston 13, and a vent valve 14. The screw 11 is threadedly installed in the middle of the top cover 3. The top end of the screw 11 is connected to the bottom end of the rotating handle 12. The top end of the piston 13 is rotatably connected to the bottom end of the screw 11, and the piston 13 is located inside the storage container 1. The bottom end of the vent valve 14 is connected to the top end of the top cover 3.

[0034] Open the top cover 3 and put ice, coffee powder, and purified water into the storage container 1 in sequence. Then, replace the top cover 3. Stir the ice, coffee powder, and purified water in the storage container 1 using the stirring device to form a mixture. At the same time, cool the mixture in the storage container 1 using the cooling device. Then, open the ventilation valve 14 and turn the rotary handle 12. Through the screw 11, the piston 13 pressurizes the inside of the storage container 1 to accelerate the fusion of the mixture and form coffee. After the mixture is fully fused, open the filtration mechanism and filter the impurities and particles in the coffee through the filter paper 4. Then, discharge the coffee to improve the practicality of the equipment.

[0035] like Figures 1 to 4 As shown, when this utility model is working, firstly, by rotating multiple adjustable bases 20, the refrigerator 10 is leveled, filter paper 4 is placed inside the second sealing shell 16, and then the second sealing shell 16 is threaded onto the left end of the first sealing shell 15. The top cover 3 is opened, and ice, coffee powder, and purified water are placed into the storage container 1 in sequence. The top cover 3 is then reset, multiple vibration motors 8 are turned on, causing multiple stirring shafts 7 to vibrate, and then the drive motor 9 is turned on. Through the meshing of gear 19 and gear ring 18, the support tube 6 drives the multiple stirring shafts 7 to rotate, stirring the mixture in the storage container 1. At the same time, the refrigerator 10 cools the mixture in the storage container 1. Then, the ventilation valve 14 is opened, and by rotating the rotating handle 12, the piston 13 is pressurized inside the storage container 1 through the screw 11, accelerating the fusion of the mixture to form coffee. After the mixture has fused, the discharge valve 17 is opened, the coffee is filtered through the filter paper 4, and then discharged through the discharge valve 17.

[0036] The main function of this invention is to quickly blend ice, coffee powder and purified water to form coffee, and to pressurize the inside of the storage container 1 so that the filter paper 4 can quickly filter the coffee and discharge it.

[0037] The installation, connection, or setting methods of the above-mentioned components are all common mechanical methods, and any method that can achieve its beneficial effect can be implemented. The filter paper 4, vibration motor 8, drive motor 9, and refrigeration unit 10 of the coffee liquid low-temperature extraction machine of this utility model are purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative labor from technical personnel in this field.

[0038] 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 invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A low-temperature coffee extraction machine, comprising filter paper (4); characterized in that, It also includes a storage device, a stirring device, a cooling device and a pressurizing device. The stirring device is installed at the bottom of the storage device, the filter paper (4) is installed in the storage device, the cooling device is installed at the bottom of the stirring device, and the pressurizing device is installed at the top of the storage device. The storage device stores the mixture, the stirring device stirs the mixture, the cooling device cools the mixture, and the pressurizing device pressurizes the inside of the storage device. The storage device includes a storage container (1), an insulation layer (2), a top cover (3), and a filter mechanism. The insulation layer (2) is wrapped around the surface of the storage container (1), the top cover (3) is threaded onto the top of the storage container (1), the filter mechanism is installed at the bottom of the side end of the storage container (1), and the filter paper (4) is installed in the filter mechanism.

2. The low-temperature coffee extraction machine according to claim 1, characterized in that, The stirring device includes a shell (5), a support tube (6), multiple stirring shafts (7), multiple vibration motors (8), a drive motor (9), and a transmission mechanism. The top of the shell (5) is connected to the bottom of the insulation layer (2). The support tube (6) is rotatably installed at the bottom of the storage container (1). The top of the support tube (6) extends into the interior of the storage container (1). One end of each of the multiple stirring shafts (7) is connected to the surface of the support tube (6), and each of the multiple stirring shafts (7) has a chamber inside. The multiple vibration motors (8) are respectively installed in the multiple stirring shafts (7). The top of the drive motor (9) is connected to the bottom of the insulation layer (2). The transmission mechanism is installed at the bottom of the support tube (6) and the drive motor (9).

3. A low-temperature coffee extraction machine according to claim 2, characterized in that, The cooling device includes a refrigeration unit (10), the top of which is connected to the bottom of the outer shell (5), and the refrigeration pipe of the refrigeration unit (10) extends between the storage container (1) and the insulation layer (2).

4. A low-temperature coffee extraction machine according to claim 1, characterized in that, The pressurizing device includes a screw (11), a rotating handle (12), a piston (13), and a vent valve (14). The screw (11) is threadedly installed in the middle of the top cover (3). The top end of the screw (11) is connected to the bottom end of the rotating handle (12). The top end of the piston (13) is rotatably connected to the bottom end of the screw (11), and the piston (13) is located inside the storage container (1). The bottom end of the vent valve (14) is connected to the top end of the top cover (3).

5. A low-temperature coffee extraction machine according to claim 1, characterized in that, The filtration mechanism includes a first sealing shell (15), a second sealing shell (16), and a discharge valve (17). The right end of the second sealing shell (16) is connected to the left end of the storage container (1). The left end of the second sealing shell (16) extends from the left end of the insulation layer (2). The right end of the second sealing shell (16) is threaded onto the left end of the first sealing shell (15). The right end of the discharge valve (17) is connected to the left end of the second sealing shell (16).

6. A low-temperature coffee extraction machine according to claim 2, characterized in that, The transmission mechanism includes a gear ring (18) and a gear (19). The gear ring (18) is fitted onto the bottom of the support tube (6). The top end of the gear (19) is connected to the bottom end of the drive motor (9). The side end of the gear ring (18) meshes with the side end of the gear (19).

7. A low-temperature coffee extraction machine according to claim 3, characterized in that, It also includes multiple adjustable bases (20), the top of which is threaded to the bottom of the refrigerator (10).