A coffee machine brewing unit with a grounds scraping device
Patent Information
- Application Number
- CN202522467651.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-20
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-20
AI Technical Summary
[0002]传统的刮渣装置通常采用连杆机构作为核心传动结构,其设计包含多个关节和连接部件,整体构造较为复杂
[0015]采用上述技术方案后,本实用新型通过利用咖啡机在返回过程中的特定位置变动,精准且高效地实现了废咖啡渣的刮除动作。无需额外复杂的机械结构或繁琐的操作步骤,在咖啡机正常工作流程中就能自然完成刮渣环节,不仅节省了能源消耗,还极大地提升了整个咖啡机冲泡单元的工作效率。而且,采用软性刮渣板进行废咖啡渣刮除,这种刮除方式能够较为彻底地清理废咖啡渣,减少残留,为后续咖啡的冲泡提供了更加干净、卫生的环境,确保每一杯咖啡都能拥有纯正的口感和品质。
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Figure CN224892395U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coffee machines, specifically to a coffee machine brewing unit scraping device. Background Technology
[0002] Traditional slag scraping devices typically employ a linkage mechanism as their core transmission structure. This design involves multiple joints and connecting components, resulting in a complex overall structure. Because the linkage mechanism requires coordination between multiple nodes during operation, the brewing component is prone to issues such as uncoordinated movement or jamming, affecting the stability and reliability of the equipment. Furthermore, some slag scraping devices rely on the driving force generated by the movement of the brewing component to indirectly drive the scraping mechanism. This design not only increases the system's complexity but may also lead to frequent malfunctions due to instability in power transmission, reducing overall efficiency and ease of maintenance. Utility Model Content
[0003] The purpose of this invention is to provide a coffee machine brewing unit scraping device that scrapes coffee dregs by changing the position of the coffee machine.
[0004] The above objectives are achieved in this way.
[0005] A coffee machine brewing unit scraping device includes a housing, a brewing cup assembly disposed on the housing, and a swing mechanism disposed on the brewing cup assembly. The swing mechanism drives the brewing cup assembly to swing back and forth between a first position and a second position. The device also includes a scraper plate disposed on a portion of the housing corresponding to the circumferential path of the brewing cup assembly moving from the first position to the second position. When the brewing cup assembly switches between the first position and the second position, the approaching portion of the scraper plate abuts against the port of the brewing cup.
[0006] This utility model can also be improved in the following ways.
[0007] Preferably, the scraper blade is made of a soft material.
[0008] The choice of a soft material allows the scraper to better conform to the shape of the brewing cup's opening when it comes into contact with the vessel, effectively removing residual coffee grounds while preventing scratches or damage to the cup's opening and extending its lifespan. Furthermore, the soft material's flexibility and cushioning properties reduce noise caused by impacts during scraping, enhancing the user experience when using the coffee machine.
[0009] Preferably, the approach portion of the scraper blade has a sharp shape.
[0010] The sharp, pointed design allows the scraper to more precisely cut into areas of sediment buildup when it comes into contact with the brewing cup's edge, effectively removing stubborn sediment and improving the thoroughness of the scraping process. This ensures a clean brewing cup interior, providing excellent hygiene for the next brew and guaranteeing the coffee's flavor and quality. Furthermore, this sharp shape is not complex to manufacture and does not significantly increase production costs, yet it significantly enhances the performance of the scraper.
[0011] Preferably, the slag scraper is detachable.
[0012] The detachable scraper design greatly simplifies daily cleaning and maintenance. After a period of use, the scraper may accumulate a lot of hard-to-remove coffee dregs. Users can easily remove the scraper for a thorough cleaning, ensuring it remains clean and hygienic and performs its scraping function optimally. This detachable design also facilitates replacement when the scraper is damaged or severely worn, eliminating the need for complex repairs to the entire coffee machine brewing unit, reducing maintenance costs and improving the convenience and economy of the coffee machine.
[0013] Preferably, the brewing cup assembly is further provided with a waste-retaining plate, which is installed in the brewing cup assembly and located on the side where waste coffee grounds are scraped out.
[0014] The presence of the coffee grounds baffle effectively blocks any coffee grounds that may splatter during the scraping process, preventing them from scattering everywhere and avoiding further contamination of the brewing cup assembly or the surrounding environment, thus further improving the cleanliness of the coffee machine's brewing unit.
[0015] By adopting the above technical solution, this invention precisely and efficiently removes waste coffee grounds by utilizing the specific positional changes of the coffee machine during its return process. Without the need for additional complex mechanical structures or cumbersome operating procedures, the scraping process is naturally completed during the normal operation of the coffee machine, saving energy consumption and significantly improving the overall efficiency of the coffee machine's brewing unit. Furthermore, using a soft scraper to remove waste coffee grounds ensures a more thorough cleaning, reducing residue and providing a cleaner, more hygienic environment for subsequent coffee brewing, ensuring that every cup of coffee has an authentic taste and quality. Attached Figure Description
[0016] Figure 1 This is a cross-sectional view of the brewing unit.
[0017] Figure 2 This is another cross-sectional view of the brewing unit.
[0018] Figure 3This is a schematic diagram showing the brewing unit in its first position.
[0019] Figure 4 This is a schematic diagram showing the brewing unit in the second position.
[0020] Figure 5 This is a schematic diagram of the oscillation mechanism of the brewing unit.
[0021] In the diagram: 1. Shell; 2. Brewing cup assembly; 3. Slag scraper; 31. Proximity part; 4. Slag baffle; 5. Swinging mechanism. Detailed Implementation
[0022] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0023] This utility model relates to a coffee machine brewing unit scraper, which is designed to automatically clean the coffee grounds remaining at the port of the brewing cup, thereby improving the cleanliness of the equipment and the user experience.
[0024] The core components of this slag scraping device include a fixed housing 1, a brewing cup assembly 2 mounted on the housing 1, a swing mechanism 5 that drives the brewing cup assembly 2, and a crucial slag scraping component, a slag scraper 3. The swing mechanism 5 can drive the brewing cup assembly 2 to reciprocate between a specific first position and another second position to complete different processes such as coffee brewing and slag removal.
[0025] The scraper 3 is mounted on the housing 1, and its installation position corresponds to the circumferential path traversed by the brewing cup assembly 2 as it swings from the first position to the second position. Specifically, when the brewing cup assembly 2 is driven to switch between the first and second positions, a contact portion 31 designed on the scraper 3 will timely abut against the edge of the brewing cup's port. Through this relative movement and contact, the coffee grounds firmly attached to the port are effectively scraped off.
[0026] As a preferred embodiment, the scraper 3 can be made of a soft material, such as food-grade silicone or rubber with a certain degree of elasticity. This choice allows the scraper 3 to undergo slight deformation when in contact with the brewing cup port, thus more closely conforming to the port contour and ensuring effective scraping. It also avoids scratches or wear that could be caused to the precision brewing cup port by hard contact, extending the service life of the core component. Furthermore, the soft material can absorb some impact energy, effectively reducing noise generated during the scraping process and improving the user's operating environment.
[0027] To further enhance the thoroughness of coffee grounds scraping, the protruding portion 31 of the scraper 3 can be designed with a sharp shape, such as a blade or wedge. This sharp edge can precisely cut into and pry away stubborn coffee grounds stuck to the edges or crevices of the port, achieving deep cleaning and ensuring the hygiene inside the brewing cup. This provides a pure environment for every coffee brewing, indirectly guaranteeing the flavor and quality of the coffee. This design achieves excellent functionality while maintaining a simple manufacturing process, without significantly increasing product costs.
[0028] Considering the ease of cleaning and maintenance for long-term use, the scraper blade 3 can be designed for detachable installation. For example, it can be fixed to the housing 1 by means of clips, screws, or magnets. Users can easily remove the scraper blade 3 periodically for thorough washing or replacement, solving the problem of fixed scraper blades being difficult to clean and prone to accumulating dirt. This design also greatly simplifies the parts replacement process. After the scraper blade 3 wears down due to long-term use, users can replace it themselves at low cost without professional repair, improving the overall economy and user-friendliness of the product.
[0029] In addition, a coffee grounds baffle 4 is added to the brewing cup assembly 2. This baffle 4 is installed inside the brewing cup assembly 2, positioned precisely on one side of the splash path when waste coffee grounds are scraped out. Its main function is to form a physical barrier, effectively preventing the scraped coffee grounds from flying into the brewing cup or other areas that should not be contaminated, guiding the waste grounds to the designated collection area, thereby maintaining the cleanliness of the inside and surrounding environment of the brewing unit.
[0030] In summary, this utility model achieves automatic and efficient cleaning of coffee grounds at the port of the brewing cup through the synergistic action of the scraper 3 and the swing mechanism 5. Combined with multiple optimized designs, it has achieved significant improvements in cleaning effect, component protection, user experience, and maintenance convenience.
[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A skimming device for a coffee machine brewing unit, comprising a housing, a brewing cup assembly disposed on the housing, and a swinging mechanism disposed on the brewing cup assembly, wherein the swinging mechanism drives the brewing cup assembly to reciprocate between a first position and a second position, characterized in that: It also includes a slag scraper, which is disposed on the housing part corresponding to the circumferential path of the brewing cup assembly moving from the first position to the second position. When the brewing cup assembly switches between the first position and the second position, the approaching part of the slag scraper abuts against the port of the brewing cup.
2. The coffee maker brewing unit's slag scraping device according to claim 1, characterized in that: The scraper blade is made of a soft material.
3. The coffee machine brewing unit's slag scraping device according to claim 1, characterized in that: The approach portion of the scraper blade has a sharp shape.
4. The coffee machine brewing unit's slag scraping device according to claim 1, characterized in that: The slag scraper is detachable.
5. The coffee machine brewing unit's slag scraping device according to claim 1, characterized in that: The brewing cup assembly is also equipped with a waste-retaining plate, which is installed in the brewing cup assembly and located on the side where waste coffee grounds are scraped out.