Coffee grinder with self-cleaning function
By introducing a two-layer grinding structure and a closed mechanism into the coffee grinding device, uniform grinding and automatic cleaning of coffee powder are achieved, solving the problems of tedious cleaning and uneven grinding, and improving the quality of coffee powder and cleaning efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JIAYAN FOOD CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-05
AI Technical Summary
Existing coffee grinding equipment is cumbersome to clean and maintain, makes it difficult to completely remove residual coffee powder, and results in uneven grinding, affecting the consistency of coffee extraction.
A coffee grinder with self-cleaning function was designed. It adopts a two-layer grinding structure and a closed mechanism, and achieves automatic cleaning through water washing, simplifying operation.
It achieves uniform grinding and easy cleaning of coffee powder, improving the quality and cleaning efficiency of coffee powder, and avoiding bacterial growth and cross-contamination of flavors.
Smart Images
Figure CN224320576U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of coffee grinding devices, specifically a coffee grinding device with a self-cleaning function. Background Technology
[0002] A coffee grinder is a device used to grind coffee beans into particles of different coarseness. Its core function is to break coffee beans through mechanical force to adapt to the particle size requirements of different coffee brewing methods such as pour-over, French press, and espresso.
[0003] Existing coffee grinding devices have significant shortcomings in use: First, cleaning and maintenance are cumbersome. Traditional devices require manual disassembly of grinding components, sieves, and other parts for washing. Coffee powder residue in corners is difficult to remove, which is not only time-consuming and laborious, but may also cause wear and tear on parts due to frequent disassembly. In addition, residual coffee powder is prone to bacterial growth and cross-contamination of flavors, affecting the quality of subsequent grinding. Second, the grinding uniformity is insufficient. The single-layer grinding structure does not crush coffee beans evenly, resulting in a mixture of coarse and fine powder. Especially when processing harder coffee beans, it is easy to have large differences in particle size, which affects the consistency of coffee extraction. Utility Model Content
[0004] The purpose of this invention is to provide a coffee grinding device with a self-cleaning function to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a coffee grinding device with self-cleaning function, comprising a device body, a grinding mechanism disposed inside the device body, and a sealing mechanism disposed on the upper and lower sides of the device body.
[0006] The grinding mechanism includes a grinding component and a material distribution component. The grinding component is disposed inside the main body of the device, and the material distribution component is disposed on the outer ring of the grinding component.
[0007] The sealing mechanism includes a top sealing assembly, a driving assembly, and a bottom sealing assembly. The top sealing assembly is located on the top of the device body, the driving assembly is located on top of the top sealing assembly, and the bottom sealing assembly is located at the bottom of the device body.
[0008] Preferably, the grinding assembly includes a rotating shaft disposed on the inner ring of the device body. A first grinding roller is fixedly connected to the outer ring of the rotating shaft. A first grinding ring is sleeved on the outer ring of the first grinding roller and is fixedly connected to the inner ring of the device body. A second grinding roller is disposed below the first grinding roller and is fixedly connected to the outer ring of the rotating shaft. A second grinding ring is sleeved on the outer ring of the second grinding roller and is fixedly connected to the inner ring of the device body.
[0009] Preferably, the material distribution assembly includes a first material distribution turntable, which is fixedly connected to the outer ring of the rotating shaft and positioned above the first grinding roller. The first material distribution turntable is rotatably connected to the inner ring of the device body. A second material distribution turntable is positioned below the first material distribution turntable and positioned between the first and second grinding rollers. The second material distribution turntable is fixedly connected to the outer ring of the rotating shaft and rotatably connected to the inner ring of the device body. A sieve is positioned below the second material distribution turntable and positioned below the second grinding roller. The sieve is fixedly connected to the outer ring of the rotating shaft and rotatably connected to the inner ring of the device body.
[0010] Preferably, the top sealing assembly includes a feeding hopper, which is fixedly connected to the top of the device body. A threaded pipe is fixedly connected to the top of the feeding hopper, and a top cover is threadedly connected to the outer ring of the threaded pipe. An anti-slip protrusion is fixedly connected to the outer ring of the top cover.
[0011] Preferably, the drive assembly includes a drive motor, which is fixedly connected to the top of the top cover. A drive shaft is fixedly connected to the bottom of the drive motor and rotatably connected to the inside of the top of the top cover. A rib is fixedly connected to the bottom of the drive shaft, and a transmission sleeve is sleeved around the outer ring of the rib. The transmission sleeve is fixedly connected to the top of the rotating shaft.
[0012] Preferably, the bottom sealing assembly includes a discharge port, which is fixedly connected to the bottom of the device body. A threaded protrusion is fixedly connected to the outer ring of the discharge port, and a bottom cover is threadedly connected to the outer ring of the threaded protrusion. An anti-slip protrusion is fixedly connected to the outer ring of the bottom cover.
[0013] Compared with the prior art, this utility model provides a coffee grinding device with a self-cleaning function, which has the following beneficial effects:
[0014] 1. This self-cleaning coffee grinder uses a grinding mechanism where grinding roller one and grinding roller two work in conjunction with grinding ring one and grinding ring two to grind the coffee beans inside the main body of the device. The two-layer grinding structure design makes the coffee powder ground by this device finer and improves the quality of the coffee powder.
[0015] 2. This coffee grinder with self-cleaning function, through its enclosed mechanism, requires the operator to flip the main body of the device over and add water, and then rotate the bottom cover to install it onto the outer ring of the threaded convex ring to complete the full sealing of the upper and lower ports of the main body of the device. After that, the operator can start the drive motor again to make the grinding component and the dispensing component rotate. The water inside the main body of the device will clean the internal structure of the device itself. It is simple to operate and easy to use. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a front view of the present utility model;
[0018] Figure 2 This is a front cross-sectional view of the present invention. Figure 1 ;
[0019] Figure 3 This is a front cross-sectional view of the present invention. Figure 2 ;
[0020] Figure 4 This is a partial structural cross-sectional view of the present invention;
[0021] Figure 5 This is a schematic diagram of part of the structure of this utility model;
[0022] Figure 6 This is a sectional view of the enclosed mechanism.
[0023] In the diagram: 1. Grinding mechanism; 11. Grinding assembly; 1101. Rotating shaft; 1102. Grinding roller one; 1103. Grinding ring one; 1104. Grinding roller two; 1105. Grinding ring two; 12. Material distribution assembly; 1201. Material distribution turntable one; 1202. Material distribution turntable two; 1203. Screen plate; 2. Sealing mechanism; 21. Top sealing assembly; 2101. Feed hopper; 2102. Threaded pipe; 2103. Top cover; 2104. Anti-slip protrusion one; 22. Drive assembly; 2201. Drive motor; 2202. Drive shaft; 2203. Rib; 2204. Transmission sleeve; 23. Bottom sealing assembly; 2301. Discharge port; 2302. Threaded protrusion ring; 2303. Bottom cover; 2304. Anti-slip protrusion two; 3. Main body of the device. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] This utility model provides a technical solution:
[0027] Example 1
[0028] Combination Figures 1 to 6 A coffee grinding device with self-cleaning function includes a main body 3, a grinding mechanism 1 inside the main body 3, and a sealing mechanism 2 on the upper and lower sides of the main body 3.
[0029] The grinding mechanism 1 includes a grinding component 11 and a material distribution component 12. The grinding component 11 is disposed inside the main body 3 of the device, and the material distribution component 12 is disposed on the outer ring of the grinding component 11.
[0030] The grinding assembly 11 includes a rotating shaft 1101, which is located within the inner ring of the device body 3. A first grinding roller 1102 is fixedly connected to the outer ring of the rotating shaft 1101. A first grinding ring 1103 is sleeved on the outer ring of the first grinding roller 1102 and is fixedly connected to the inner ring of the device body 3. A second grinding roller 1104 is located below the first grinding roller 1102 and is fixedly connected to the outer ring of the rotating shaft 1101. A second grinding ring 1105 is sleeved on the outer ring of the second grinding roller 1104 and is fixedly connected to the inner ring of the device body 3. The material distribution assembly 12 includes a first material distribution turntable 1201, which is fixedly connected to the outer ring of the rotating shaft 1101. Material distribution turntable 1201 is positioned above grinding roller 1102 and is rotatably connected to the inner ring of the main body 3 of the device. Material distribution turntable 1202 is positioned below material distribution turntable 1201 and is positioned between grinding roller 1102 and grinding roller 1104. Material distribution turntable 1202 is fixedly connected to the outer ring of rotating shaft 1101 and is rotatably connected to the inner ring of the main body 3 of the device. Screen plate 1203 is positioned below material distribution turntable 1202 and is positioned below grinding roller 1104. Screen plate 1203 is fixedly connected to the outer ring of rotating shaft 1101 and is rotatably connected to the inner ring of the main body 3 of the device.
[0031] Furthermore, the rotating shaft 1101 distributes the coffee beans entering the main body 3 of the device, so that the coffee beans falling into contact with the grinding roller 1102 and the grinding ring 1103 can be evenly distributed above them, making the grinding process more uniform. The same applies to the grinding roller 1102, while the rotation of the grinding ring 1103 further disperses the ground coffee powder more evenly, making the coffee powder fall more evenly and facilitating subsequent use.
[0032] Example 2
[0033] See Figures 1 to 6 Furthermore, based on Embodiment 1, the sealing mechanism 2 includes a top sealing component 21, a driving component 22, and a bottom sealing component 23. The top sealing component 21 is disposed on the top of the device body 3, the driving component 22 is disposed on the top of the top sealing component 21, and the bottom sealing component 23 is disposed on the bottom of the device body 3.
[0034] The top sealing assembly 21 includes a feed hopper 2101, which is fixedly connected to the top of the main body 3 of the device. A threaded tube 2102 is fixedly connected to the top of the feed hopper 2101. A top cover 2103 is threadedly connected to the outer ring of the threaded tube 2102. An anti-slip protrusion 2104 is fixedly connected to the outer ring of the top cover 2103. The drive assembly 22 includes a drive motor 2201, which is fixedly connected to the top of the top cover 2103. A drive shaft 2202 is fixedly connected to the bottom of the drive motor 2201. The drive shaft 2202 is rotatably connected to... Inside the top of the top cover 2103, the bottom of the drive shaft 2202 is fixedly connected to a rib 2203, the outer ring of the rib 2203 is sleeved with a transmission sleeve 2204, the transmission sleeve 2204 is fixedly connected to the top of the rotating shaft 1101, the bottom sealing assembly 23 includes a discharge port 2301, the discharge port 2301 is fixedly connected to the bottom of the device body 3, the outer ring of the discharge port 2301 is fixedly connected to a threaded protrusion ring 2302, the outer ring of the threaded protrusion ring 2302 is threadedly connected to a bottom cover 2303, and the outer ring of the bottom cover 2303 is fixedly connected to an anti-slip protrusion 2304.
[0035] Furthermore, the operator only needs to rotate the top cover 2103 to the outer ring of the threaded tube 2102 to complete the splicing between the rib rod 2203 and the transmission sleeve 2204. Subsequently, the operator only needs to start the drive motor 2201 to drive the rotating shaft 1101 to rotate and grind the coffee beans placed in the main body 3 of the device. The operation is simple and convenient for the operator to use.
[0036] In actual operation, when this device is in use and coffee beans need to be ground, the operator first pours the coffee beans into the top of the main body 3 of the device. Then, the operator rotates the top cover 2103 to the outer ring of the threaded tube 2102. At this time, the rib 2203 is engaged in the top of the transmission sleeve 2204. Then, the operator starts the drive motor 2201. The start of the drive motor 2201 drives the rib 2203 to rotate through the drive shaft 2202. The rotation of the rib 2203 drives the rotating shaft 1101 to rotate through the transmission sleeve 2204. The rotation of the rotating shaft 1101 drives the grinding roller 1102, the grinding roller 2104, and the dispensing turntable 120. 1. The second distributing turntable 1202 and the sieve 1203 rotate synchronously. The coffee beans are first dispersed by the rotation of the rotating shaft 1101 and fall above the first grinding roller 1102 and the first grinding ring 1103. Then the first grinding roller 1102 rotates to perform preliminary grinding on the coffee beans. The crushed coffee grounds fall downward through the second distributing turntable 1202 and fall above the second grinding roller 1104 and the second grinding ring 1105. The second distributing turntable 1202 distributes the crushed coffee grounds. Then the second grinding roller 1104 and the second grinding ring 1105 work together to grind the coffee grounds into powder. Finally, the coffee powder falls downward through the second grinding roller 1104 and is discharged. At this time, the grinding process of the coffee grounds is completed.
[0037] When cleaning the inside of the main body 3 is required, the staff first flips the main body 3 so that the bottom opening of the main body 3 faces upward. Then, the staff directly adds water to the top inside the main body 3. Finally, the bottom cover 2303 is rotated and installed onto the outer ring of the threaded protrusion 2302 until the bottom cover 2303 can no longer be rotated. At this time, the openings on the top and bottom sides of the main body 3 are sealed. Then, the drive motor 2201 is started to drive the internal structure to rotate. At this time, the internal structure of the main body 3 rotates and the water helps to clean the coffee grounds adhering to the inside. Finally, the bottom cover 2303 is removed and the water is drained. At this time, the cleaning treatment of the main body 3 is completed.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A coffee grinder with self-cleaning function, comprising a main body (3), characterized in that: The device body (3) is provided with a grinding mechanism (1), and the device body (3) is provided with a sealing mechanism (2) on the upper and lower sides. The grinding mechanism (1) includes a grinding component (11) and a distributing component (12). The grinding component (11) is disposed inside the main body (3) of the device, and the distributing component (12) is disposed on the outer ring of the grinding component (11). The sealing mechanism (2) includes a top sealing component (21), a drive component (22) and a bottom sealing component (23). The top sealing component (21) is located on the top of the device body (3), the drive component (22) is located on the top of the top sealing component (21), and the bottom sealing component (23) is located on the bottom of the device body (3).
2. A coffee grinder with self-cleaning function according to claim 1, characterized in that: The grinding assembly (11) includes a rotating shaft (1101), which is located on the inner ring of the main body (3) of the device. A grinding roller (1102) is fixedly connected to the outer ring of the rotating shaft (1101), and a grinding ring (1103) is sleeved on the outer ring of the grinding roller (1102). The grinding ring (1103) is fixedly connected to the inner ring of the main body (3) of the device.
3. A coffee grinder with self-cleaning function according to claim 2, characterized in that: A second grinding roller (1104) is provided below the first grinding roller (1102). The second grinding roller (1104) is fixedly connected to the outer ring of the rotating shaft (1101). A second grinding ring (1105) is sleeved on the outer ring of the second grinding roller (1104). The second grinding ring (1105) is fixedly connected to the inner ring of the main body (3) of the device.
4. A coffee grinder with self-cleaning function according to claim 1, characterized in that: The material distribution assembly (12) includes a material distribution turntable (1201), which is fixedly connected to the outer ring of the rotating shaft (1101). The material distribution turntable (1201) is positioned above the grinding roller (1102), and the material distribution turntable (1201) is rotatably connected to the inner ring of the device body (3).
5. A coffee grinder with self-cleaning function according to claim 4, characterized in that: Below the first material distribution turntable (1201), a second material distribution turntable (1202) is provided. The second material distribution turntable (1202) is located between the first grinding roller (1102) and the second grinding roller (1104). The second material distribution turntable (1202) is fixedly connected to the outer ring of the rotating shaft (1101) and rotatably connected to the inner ring of the main body (3) of the device.
6. A coffee grinder with self-cleaning function according to claim 5, characterized in that: A screen plate (1203) is provided below the material distribution turntable (1202). The screen plate (1203) is located below the grinding roller (1104). The screen plate (1203) is fixedly connected to the outer ring of the rotating shaft (1101). The screen plate (1203) is rotatably connected to the inner ring of the main body (3) of the device.
7. A coffee grinder with self-cleaning function according to claim 1, characterized in that: The top sealing assembly (21) includes a feed hopper (2101), which is fixedly connected to the top of the main body (3) of the device. A threaded tube (2102) is fixedly connected to the top of the feed hopper (2101), and a top cover (2103) is threadedly connected to the outer ring of the threaded tube (2102). An anti-slip protrusion (2104) is fixedly connected to the outer ring of the top cover (2103).
8. A coffee grinder with self-cleaning function according to claim 1, characterized in that: The drive assembly (22) includes a drive motor (2201), which is fixedly connected to the top of the top cover (2103). A drive shaft (2202) is fixedly connected to the bottom of the drive motor (2201). The drive shaft (2202) is rotatably connected to the top of the top cover (2103). A rib (2203) is fixedly connected to the bottom of the drive shaft (2202). A transmission sleeve (2204) is sleeved on the outer ring of the rib (2203). The transmission sleeve (2204) is fixedly connected to the top of the rotating shaft (1101).
9. A coffee grinder with self-cleaning function according to claim 1, characterized in that: The bottom sealing assembly (23) includes a discharge port (2301), which is fixedly connected to the bottom of the main body (3) of the device. A threaded protrusion ring (2302) is fixedly connected to the outer ring of the discharge port (2301). A bottom cover (2303) is threadedly connected to the outer ring of the threaded protrusion ring (2302). An anti-slip protrusion (2304) is fixedly connected to the outer ring of the bottom cover (2303).