A cold-brewed coffee extract liquid rapid sterilization and filtration device
Patent Information
- Application Number
- CN202522617227.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-12-10
AI Technical Summary
[0003]本实用新型的主要目的在于提供一种冷萃咖啡萃取液快速杀菌过滤装置，可以有效解决萃取的效率较低以及萃取液杀菌过滤的速率不佳的问题
1、本实用新型提供一种冷萃咖啡萃取液快速杀菌过滤装置，采用冷水圆瓶、连接套管、安装机壳、搅拌机构和漏斗组件之间的配合，通过操控搅拌机构工作，利用齿轮传动的方式加速漏斗组件内的咖啡粉和冷水之间持续搅拌混合，进一步提高萃取的速度，解决了现有的冷萃咖啡萃取液的咖啡粉与水之间融合的的速度较慢，通常需要耗费上十小时的时间完成萃取，导致萃取的效率较低的问题，达到了提高咖啡液萃取效率的有益效果。
Smart Images
Figure CN224912132U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cold brew coffee technology, and in particular to a rapid sterilization and filtration device for cold brew coffee extract. Background Technology
[0002] Cold brew coffee, also known as cold-brewed coffee, is a coffee beverage made through a long extraction process at low temperatures. This product uses finely ground coffee grounds steeped in cold water or ice water (below 5°C) for approximately 10 hours, followed by filtering out the coffee grounds. It is characterized by low acidity, a smooth texture, and a sweet aftertaste. It also has a lower caffeine content than traditional coffee. During extraction, a 0.22μm or 0.45μm microporous membrane is typically placed on a filter funnel to achieve solid-liquid separation and trap bacteria. However, existing technologies have the following drawbacks: The existing cold brew coffee extract has a slow mixing speed between coffee powder and water, usually requiring more than ten hours to complete the extraction, resulting in low extraction efficiency. Secondly, the sterilization and filtration rate of the extract is not good during the extraction process, reducing the practicality of the equipment. Utility Model Content
[0003] The main purpose of this invention is to provide a rapid sterilization and filtration device for cold brew coffee extract, which can effectively solve the problems of low extraction efficiency and poor sterilization and filtration rate of the extract.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A rapid sterilization and filtration device for cold brew coffee extract includes a cold water cylindrical bottle, a connecting sleeve at the bottom of the cold water cylindrical bottle, a receiving bottle at the bottom of the connecting sleeve, a mounting housing fixedly connected to the left side of the outer wall of the connecting sleeve, and the right side of the outer wall of the mounting housing penetrating into the interior of the connecting sleeve, a stirring mechanism inside the mounting housing, a funnel assembly inside the connecting sleeve, and the bottom of the outer wall of the stirring mechanism penetrating into the interior of the funnel assembly, and a sterilization and filtration mechanism at the front of the outer wall of the receiving bottle, with the exterior of the sterilization and filtration mechanism penetrating into the inner wall of the receiving bottle.
[0005] Preferably, a connecting bottle body is fixedly connected to the bottom of the outer wall of the cold water round bottle, a piston is provided at the tube opening at the top of the cold water round bottle, a drip tube is fixedly connected to the bottom of the connecting bottle body, the bottom of the outer wall of the drip tube extends through to the bottom of the connecting bottle body and is fixedly connected to a liquid guiding cone, and liquid guiding grooves are respectively opened on the front and rear sides of the outer wall of the liquid guiding cone.
[0006] Preferably, the inner wall of the connecting sleeve is provided with a threaded groove, the right end of the mounting housing is fixedly connected to a protective box, the right side of the outside of the stirring mechanism extends to the bottom of the protective box, and the bottom of the liquid guiding cone is located at the top of the protective box.
[0007] Preferably, the stirring mechanism includes a rotary motor, two synchronous gears, a synchronous belt, a rotating rod, several stirring blades, and a rotating column. The output shaft of the rotary motor is fixedly connected to the center end of the left synchronous gear. The toothed blocks in the synchronous belt mesh with the toothed blocks on the two synchronous gears. The upper end of the rotating rod is fixedly connected to the center end of the right synchronous gear. One end of several stirring blades is equidistantly arrayed and fixedly connected to the outer wall of the rotating rod. Several connecting holes are opened on the surface of each stirring blade. The bottom of the rotating column is fixedly connected to the central shaft at the top of the right synchronous gear.
[0008] Preferably, the stirring blades are configured with a structure that is wider at the top and narrower at the bottom. The bottom of the rotary motor is fixedly connected to the inner wall of the mounting housing. The outer side of the synchronous gear on the right side is located inside the protective box on the right side. The top of the rotating column is fixedly connected to the inner wall of the protective box. The outer wall of the rotating rod extends through to the bottom of the protective box.
[0009] Preferably, the funnel assembly includes a cloth funnel and a connecting ring block. The top of the cloth funnel is fixedly connected to the bottom of the connecting ring block. The outer wall of the connecting ring block is provided with a thread, and the outer wall of the connecting ring block is threadedly connected to the threaded groove of the inner wall of the connecting sleeve through the thread.
[0010] Preferably, the sterilization and filtration mechanism includes a vacuum generator, an annular air tube, and several suction heads. The outer wall of the vacuum generator is fixedly connected to the outer wall of the receiving bottle, the outer wall of the annular air tube is fixedly connected to the upper side of the inner wall of the receiving bottle, the output port of the vacuum generator extends into the interior of the receiving bottle and is fixedly connected to the outer wall of the annular air tube, and one end of the several suction heads is fixedly connected to the inner wall of the annular air tube in a circular array.
[0011] Preferably, the top of the outer wall of the receiving bottle is provided with a second thread, and the outer wall of the receiving bottle is threadedly connected to the threaded groove in the connecting sleeve through the second thread. A limiting ring block is fixedly connected to the lower side of the outer wall of the receiving bottle near the second thread, and a sealing ring is fixedly connected to the upper surface of the limiting ring block. The outer surface of the sealing ring overlaps with the bottom of the connecting sleeve. Protective ring blocks are fixedly connected to the upper and lower sides of the inner wall of the receiving bottle near the annular gas tube, respectively.
[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model provides a rapid sterilization and filtration device for cold brew coffee extract. It adopts the cooperation between a cold water round bottle, a connecting sleeve, a mounting housing, a stirring mechanism, and a funnel assembly. By operating the stirring mechanism, the continuous stirring and mixing between coffee powder and cold water in the funnel assembly is accelerated through gear transmission, which further improves the extraction speed. This solves the problem that the existing cold brew coffee extract has a slow mixing speed between coffee powder and water, which usually takes more than ten hours to complete the extraction, resulting in low extraction efficiency. This invention achieves the beneficial effect of improving the extraction efficiency of coffee liquid.
[0013] 2. This utility model provides a rapid sterilization and filtration device for cold brew coffee extract. It adopts the cooperation between the connecting sleeve, receiving bottle, funnel assembly and sterilization and filtration mechanism, and the sealed connection between the receiving bottle and the connecting sleeve. The sterilization and filtration mechanism uses vacuum pressure technology to achieve rapid filtration and sterilization, which solves the problem of poor sterilization and filtration rate of extract during the extraction process, which reduces the practicality of the device. It achieves the beneficial effect of rapid sterilization and filtration of extract and improves the practicality of the device. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the rapid sterilization and filtration device for cold brew coffee extract according to this utility model. Figure 2 This is a three-dimensional cross-sectional view of the cold water round bottle and connecting sleeve of this utility model. Figure 3 This is a three-dimensional structural diagram of the stirring mechanism of this utility model; Figure 4 This is a three-dimensional structural diagram of the funnel assembly of this utility model; Figure 5 This is a three-dimensional structural diagram of the sterilization and filtration mechanism of this utility model.
[0015] In the diagram: 1. Cold water round bottle; 11. Connecting bottle body; 12. Piston; 13. Dropping tube; 14. Liquid guiding cone; 140. Liquid guiding groove; 2. Connecting sleeve; 201. Threaded groove; 3. Receiving bottle; 31. Thread two; 32. Limiting ring block; 33. Sealing ring; 34. Protective ring block; 4. Mounting housing; 41. Protective box; 5. Stirring mechanism; 51. Rotary motor; 52. Synchronous gear; 53. Synchronous belt; 54. Rotating rod; 55. Stirring blade; 550. Connecting hole; 56. Rotating column; 6. Funnel assembly; 61. Cloth funnel; 62. Connecting ring block; 63. Thread one; 7. Sterilization and filtration mechanism; 71. Vacuum generator; 72. Annular air tube; 73. Suction head. Detailed Implementation
[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0017] like Figure 1 As shown, a rapid sterilization and filtration device for cold brew coffee extract includes a cold water round bottle 1, a connecting sleeve 2 at the bottom of the cold water round bottle 1, a receiving bottle 3 at the bottom of the connecting sleeve 2, a mounting housing 4 fixedly connected to the left side of the outer wall of the connecting sleeve 2, and the right side of the outer wall of the mounting housing 4 penetrating into the interior of the connecting sleeve 2. A stirring mechanism 5 is provided inside the mounting housing 4, a funnel assembly 6 is provided inside the connecting sleeve 2, and the bottom of the outer wall of the stirring mechanism 5 penetrates into the interior of the funnel assembly 6. A sterilization and filtration mechanism 7 is provided on the front side of the outer wall of the receiving bottle 3, and the outside of the sterilization and filtration mechanism 7 penetrates into the inner wall of the receiving bottle 3. The system consists of a cold water round bottle 1, a connecting sleeve 2, a receiving bottle 3, a mounting housing 4, a stirring mechanism 5, a funnel assembly 6, and a sterilization and filtration mechanism 7. Through the coordinated operation of the mounting housing 4, the stirring mechanism 5, and the funnel assembly 6, the water and coffee powder in the funnel assembly 6 are stirred using a synchronous belt drive to achieve rapid fusion and extraction. In conjunction with the operation of the receiving bottle 3 and the sterilization and filtration mechanism 7, vacuum pressure technology is used to achieve rapid filtration and sterilization.
[0018] like Figure 2 As shown, this utility model provides a technical solution for a rapid sterilization and filtration device for cold brew coffee extract: A connecting bottle body 11 is fixedly connected to the bottom of the outer wall of a cold water round bottle 1. A piston 12 is provided at the tube opening at the top of the cold water round bottle 1. A dripping tube 13 is fixedly connected to the bottom of the connecting bottle body 11. The bottom of the outer wall of the dripping tube 13 extends through to the bottom of the connecting bottle body 11 and is fixedly connected to a liquid guiding cone 14. Liquid guiding grooves 140 are respectively opened on the front and rear sides of the outer wall of the liquid guiding cone 14. Cold water or ice water in the cold water round bottle 1 is diverted and dripped along the liquid guiding grooves 140 through the dripping tube 13, further accelerating the fusion between coffee powder and water. A threaded groove 201 is opened on the inner wall of the connecting sleeve 2. A protective box 41 is fixedly connected to the right end of the mounting housing 4. The right side of the outside of the stirring mechanism 5 extends through to the bottom of the protective box 41. The bottom of the liquid guiding cone 14 is located at the top of the protective box 41.
[0019] like Figure 3As shown, this utility model provides a technical solution for a rapid sterilization and filtration device for cold brew coffee extract: The stirring mechanism 5 includes a rotary motor 51, two synchronous gears 52, a synchronous belt 53, a rotating rod 54, several stirring blades 55, and a rotating column 56. The output shaft of the rotary motor 51 is fixedly connected to the center end of the left synchronous gear 52. The toothed blocks in the synchronous belt 53 mesh with the toothed blocks on the two synchronous gears 52. The upper end of the rotating rod 54 is fixedly connected to the center end of the right synchronous gear 52. One end of several stirring blades 55 is equidistantly arrayed and fixedly connected to the outer wall of the rotating rod 54. The output shaft of the rotary motor 51 drives the left synchronous gear 52 to rotate, thereby using the synchronous belt 53 to drive the right synchronous gear. Rotation 52 causes the rotating rod 54 to drive multiple stirring blades 55 to rotate, stirring the coffee liquid and accelerating extraction. Several stirring blades 55 have several connecting holes 550 on their surfaces, which allow the coffee liquid to flow and accelerate blending. The bottom of the rotating column 56 is fixedly connected to the central shaft at the top of the right-side synchronous gear 52. The stirring blades 55 are designed with a structure that is wider at the top and narrower at the bottom. The bottom of the rotary motor 51 is fixedly connected to the inner wall of the mounting housing 4. The outer side of the right-side synchronous gear 52 is located inside the protective box 41 on the right side. The top of the rotating column 56 is fixedly connected to the inner wall of the protective box 41. The outer wall of the rotating rod 54 extends through to the bottom of the protective box 41.
[0020] like Figure 4 As shown, this utility model provides a technical solution for a rapid sterilization and filtration device for cold brew coffee extract: the funnel assembly 6 includes a cloth funnel 61 and a connecting ring block 62. The top of the cloth funnel 61 is fixedly connected to the bottom of the connecting ring block 62. The outer wall of the connecting ring block 62 is provided with a thread 63. The outer wall of the connecting ring block 62 is threadedly connected to the threaded groove 201 on the inner wall of the connecting sleeve 2 through the thread 63. The cloth funnel 61 is connected to the connecting sleeve 2 by the connecting ring block 62 in a threaded manner, which is convenient for disassembly and assembly.
[0021] like Figure 5As shown, this utility model provides a technical solution for a rapid sterilization and filtration device for cold brew coffee extract: the sterilization and filtration mechanism 7 includes a vacuum generator 71, an annular air tube 72, and several suction heads 73. The outer wall of the vacuum generator 71 is fixedly connected to the outer wall of the receiving bottle 3, and the outer wall of the annular air tube 72 is fixedly connected to the upper side of the inner wall of the receiving bottle 3. The output port of the vacuum generator 71 extends into the interior of the receiving bottle 3 and is fixedly connected to the outer wall of the annular air tube 72. One end of each suction head 73 is fixedly connected in a ring array to the inner wall of the annular air tube 72. When the airflow enters the expansion section after entering the annular air tube 72, the velocity further increases, forming a low-pressure area in the negative pressure chamber, causing external air to be drawn in from the multiple suction heads 73. This process continuously draws air from the receiving bottle 3, creating a vacuum suction force. The top of the outer wall of the receiving bottle 3 is provided with a second thread 31. The outer wall of the receiving bottle 3 is threadedly connected to the threaded groove 201 in the connecting sleeve 2 through the second thread 31. A limiting ring block 32 is fixedly connected to the lower side of the outer wall of the receiving bottle 3 near the second thread 31. A sealing ring 33 is fixedly connected to the upper surface of the limiting ring block 32. The outer surface of the sealing ring 33 overlaps with the bottom of the connecting sleeve 2. After the receiving bottle 3 is screwed and fixed in the connecting sleeve 2 through the second thread 31, the sealing ring 33 fits tightly against the bottom of the connecting sleeve 2, increasing the sealing performance of the connection. Protective ring blocks 34 are fixedly connected to the upper and lower sides of the inner wall of the receiving bottle 3 near the annular air tube 72, respectively.
[0022] The working principle of this cold brew coffee extract rapid sterilization and filtration device will be explained in detail below.
[0023] like Figure 1-5As shown, in the process of making cold brew coffee, firstly, a 0.22μm or 0.45μm microporous filter membrane suitable for sterilization or clarification is placed in a cloth funnel 61. Then, ground coffee powder is poured into the filter membrane. The cloth funnel 61 is screwed into the connecting sleeve 2 via the connecting ring block 62. Then, the receiving bottle 3 is screwed onto the bottom of the connecting ring block 62 via the thread 31 along the connecting sleeve 2. The sealing ring 33 is tightly fitted to the lower surface of the connecting sleeve 2 to increase the sealing of the connection. Then, the device is connected to an external power source. Then, cold water below 5°C or ice water is poured into the cold water round bottle 1. Then, the inlet of the cold water round bottle 1 is blocked using the piston 12, so that the cold water drips into the liquid guide groove 140 through the drip pipe 13. Finely ground coffee powder is soaked in the cloth funnel 61. Then, the rotary motor 51 is started. The output shaft of the rotary motor 51 drives the left synchronous gear 52 to rotate. The synchronous transmission of the synchronous belt 53 drives the rotating rod 54 to rotate, so that multiple stirring blades 55 stir the coffee liquid, accelerate the fusion of water and coffee powder, and speed up the extraction. At the same time, the vacuum generator 71 is started to work, using compressed air to create a vacuum. When the airflow enters the expansion section after the annular air tube 72, the speed increases further, forming a low-pressure area in the negative pressure chamber, causing external air to be drawn in from multiple suction heads 73. This process continuously draws air from the receiving bottle 3, forming a vacuum suction force, and then uses vacuum pressure technology to achieve rapid filtration and sterilization.
[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A rapid sterilization and filtration device for cold brew coffee extract, comprising a cold water round bottle (1), characterized in that: The bottom of the cold water round bottle (1) is provided with a connecting sleeve (2), and the bottom of the connecting sleeve (2) is provided with a receiving bottle (3). The left side of the outer wall of the connecting sleeve (2) is fixedly connected with a mounting housing (4), and the right side of the outer wall of the mounting housing (4) is hung through to the inside of the connecting sleeve (2). The inside of the mounting housing (4) is provided with a stirring mechanism (5), and the inside of the connecting sleeve (2) is provided with a funnel assembly (6). The bottom of the outer wall of the stirring mechanism (5) extends through to the inside of the funnel assembly (6). The front side of the outer wall of the receiving bottle (3) is provided with a sterilization and filtration mechanism (7), and the outside of the sterilization and filtration mechanism (7) extends through to the inner wall of the receiving bottle (3).
2. The rapid sterilization and filtration device for cold brew coffee extract according to claim 1, characterized in that: The bottom of the outer wall of the cold water round bottle (1) is fixedly connected to a connecting bottle body (11). A piston (12) is provided at the top of the cold water round bottle (1). A dripping tube (13) is fixedly connected to the bottom of the connecting bottle body (11). The bottom of the outer wall of the dripping tube (13) extends through to the bottom of the connecting bottle body (11) and is fixedly connected to a liquid guiding cone (14). Liquid guiding grooves (140) are respectively opened on the front and rear sides of the outer wall of the liquid guiding cone (14).
3. The rapid sterilization and filtration device for cold brew coffee extract according to claim 2, characterized in that: The inner wall of the connecting sleeve (2) is provided with a threaded groove (201), the right end of the mounting housing (4) is fixedly connected to a protective box (41), the right side of the outside of the stirring mechanism (5) extends to the bottom of the protective box (41), and the bottom of the liquid guiding cone (14) is set at the top of the protective box (41).
4. The rapid sterilization and filtration device for cold brew coffee extract according to claim 1, characterized in that: The stirring mechanism (5) includes a rotary motor (51), two synchronous gears (52), a synchronous belt (53), a rotating rod (54), several stirring blades (55), and a rotating column (56). The output shaft of the rotary motor (51) is fixedly connected to the center end of the left synchronous gear (52). The toothed blocks in the synchronous belt (53) mesh with the toothed blocks on the two synchronous gears (52). The upper end of the rotating rod (54) is fixedly connected to the center end of the right synchronous gear (52). One end of several stirring blades (55) is fixedly connected to the outer wall of the rotating rod (54) in an equidistant array. Several connecting holes (550) are opened on the surface of several stirring blades (55). The bottom of the rotating column (56) is fixedly connected to the central shaft at the top of the right synchronous gear (52).
5. The rapid sterilization and filtration device for cold brew coffee extract according to claim 4, characterized in that: Several of the stirring blades (55) are configured with a structure that is wider at the top and narrower at the bottom. The bottom of the rotary motor (51) is fixedly connected to the inner wall of the mounting housing (4). The outer side of the synchronous gear (52) on the right side is set inside the protective box (41). The top of the rotating column (56) is fixedly connected to the inner wall of the protective box (41). The outer wall of the rotating rod (54) extends through to the bottom of the protective box (41).
6. The rapid sterilization and filtration device for cold brew coffee extract according to claim 1, characterized in that: The funnel assembly (6) includes a cloth funnel (61) and a connecting ring block (62). The top of the cloth funnel (61) is fixedly connected to the bottom of the connecting ring block (62). The outer wall of the connecting ring block (62) is provided with a thread (63). The outer wall of the connecting ring block (62) is threadedly connected to the threaded groove (201) on the inner wall of the connecting sleeve (2) through the thread (63).
7. The rapid sterilization and filtration device for cold brew coffee extract according to claim 1, characterized in that: The sterilization and filtration mechanism (7) includes a vacuum generator (71), an annular air tube (72), and several suction heads (73). The outer wall of the vacuum generator (71) is fixedly connected to the outer wall of the receiving bottle (3), and the outer wall of the annular air tube (72) is fixedly connected to the upper side of the inner wall of the receiving bottle (3). The output port of the vacuum generator (71) extends into the interior of the receiving bottle (3) and is fixedly connected to the outer wall of the annular air tube (72). One end of each of the suction heads (73) is fixedly connected to the inner wall of the annular air tube (72) in an annular array.
8. The rapid sterilization and filtration device for cold brew coffee extract according to claim 7, characterized in that: The top of the outer wall of the receiving bottle (3) is provided with a threaded second (31). The outer wall of the receiving bottle (3) is threadedly connected to the threaded groove (201) in the connecting sleeve (2) through the threaded second (31). A limiting ring block (32) is fixedly connected to the lower side of the outer wall of the receiving bottle (3) near the threaded second (31). A sealing ring (33) is fixedly connected to the upper surface of the limiting ring block (32). The outer surface of the sealing ring (33) overlaps with the bottom of the connecting sleeve (2). Protective ring blocks (34) are fixedly connected to the upper and lower sides of the inner wall of the receiving bottle (3) near the annular gas tube (72).