Anti-flying powder structure of coffee grinder

Abstract

The utility model relates to coffee machine field, concretely is a kind of anti-fly powder structure of coffee grinder device. It includes coffee grinder device and bearing seat, coffee grinder device is installed on bearing seat, and there is powder outlet in bearing seat, and coffee grinder device sends powder to it. The detachable configuration powder delivery channel is arranged at powder outlet, its powder inlet is communicated with powder outlet, and powder inlet is equipped with guide slope and powder baffle, guide slope is inclined downward along powder advancing direction, angle alpha satisfies 47°<alpha<57°, and powder baffle is suspended in powder inlet, and bottom end is separated from guide slope to form powder gathering mouth. Specifically, powder baffle uses the geometry shape of channel lower cover, and the orderly movement of coffee powder is guided by guide slope, and the unordered flying of powder in channel is reduced;Transition surface ensures that coffee powder flows smoothly, avoids turbulent flow, and reduces the risk of fly powder. Powder baffle is arranged at key position, and it is efficiently intercepted that coffee powder scatters, to prevent it from escaping powder delivery channel. Soft material is applied, and the interception effect is enhanced by flexibility and elasticity, the service life of powder baffle is prolonged, and the use cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of coffee machines, specifically to an anti-powder-spraying structure for a coffee machine grinding device. Background Technology

[0002] Semi-automatic and fully automatic coffee machines are equipped with a grinder to grind coffee beans into powder. Generally, a motor drives the grinder blades to break down the coffee beans. However, during the grinding process, friction between the beans and the blades generates static electricity, causing the coffee powder to carry a charge and resulting in flyaway coffee. Specifically, static electricity causes coffee powder to adhere to or scatter, making the machine difficult to clean and inconvenient for users. While some coffee grinders on the market have anti-flyaway mechanisms, they are expensive and lack cost competitiveness. If the channels are not cleaned regularly, cleaning becomes increasingly difficult over time, eventually causing the anti-flyaway function to fail. This not only affects the taste of the coffee and the customer experience but also puts the product at a competitive disadvantage in the market.

[0003] A coffee grinder disclosed in Chinese patent CN218791907U has a poor anti-powder effect because the powder outlet channel below the grinding wheel is separated from the plasma generator of the externally installed static elimination component. This means the plasma cannot directly act on the statically charged coffee powder, leading to ineffective anti-powder spraying and a potential risk of powder spraying failure. Furthermore, the feed inlet and outlet of this structure are a straight-through design. Due to factors such as the fast powder dispensing speed, there is a certain distance between the plasma generator and the powder outlet, resulting in unpredictable powder spraying and an unsatisfactory anti-powder spraying effect, leading to a poor customer experience. Additionally, the anti-static design with a plasma structure lacks cost advantages.

[0004] The grinding assembly and coffee machine disclosed in Chinese patent document CN206183046U include a chamber, a blade, and a plasma generator. The bottom of the chamber has an outlet for the powder dispensing channel, the blade is located inside the chamber, and the positive and negative electrodes of the plasma generator are arranged side-by-side in the area below the blade inside the chamber. However, this structure has a drawback: because the positive and negative electrodes are located in the powder dispensing channel, they can easily interfere with the flow of powder, thus affecting the powder dispensing speed. Utility Model Content

[0005] The purpose of this invention is to provide a coffee grinder device with a smooth coffee powder output and an anti-powder-spraying structure.

[0006] The above objectives are achieved in this way.

[0007] A coffee machine grinding device with anti-powder-spraying structure includes a grinding device and a support base. The grinding device is mounted on the support base, and the support base has a powder outlet. The grinding device feeds powder to the powder outlet. A powder feeding channel is detachably configured at the powder outlet. The powder feeding channel has a powder inlet communicating with the powder outlet. The powder inlet has a guide slope and a powder-blocking plate. The guide slope is inclined downward along the powder's forward direction, and the downward inclination angle of the guide slope is α, where 47° < α < 57°. The powder-blocking plate is suspended at the powder inlet, and the bottom end of the powder-blocking plate is separated from the guide slope to form a powder-gathering opening.

[0008] This utility model is also optimized in the following ways.

[0009] Preferably, the powder feeding channel includes a channel lower cover and a channel lower cover, which are fixedly connected by a snap fastener. The powder inlet is located on the upper part of the channel lower cover, and the guide slope extends from the powder inlet to the lower part of the channel lower cover.

[0010] The connection between the lower covers of the channel is equipped with a sealing structure to ensure that powder does not leak from the connection during the powder feeding process. At the same time, the lower cover of the channel is made of a wear-resistant material that is not prone to generating static electricity, to prevent powder from adhering to the inner wall of the channel due to static electricity during the conveying process, which would affect the smoothness of powder dispensing.

[0011] Furthermore, the upper part of the channel cover is provided with an installation groove, and the upper end of the powder-blocking plate is provided with an installation port. When the powder-blocking plate is installed into the powder feeding channel, the installation port is inserted into the installation groove.

[0012] This design allows the dust collector to be securely installed within the powder delivery channel, effectively preventing it from shaking or shifting during the coffee machine's grinding process. Furthermore, the simple and easy-to-use interface between the mounting port and the mounting slot facilitates subsequent disassembly, cleaning, or replacement of the dust collector, improving the overall ease of maintenance for the anti-dust-spray structure. Simultaneously, this installation method does not obstruct the normal transport of coffee powder within the delivery channel, ensuring that coffee grounds are smoothly delivered from the inlet through the delivery channel.

[0013] Furthermore, the lower cover of the channel is provided with a guide slope, a transition curved surface and a vertical surface in sequence from top to bottom, and the powder-blocking plate is disposed on the same vertical surface at the intersection of the extension lines of the vertical surface and the guide slope.

[0014] This structural design allows the dust baffle to fully utilize the geometry of the channel cover. During coffee powder delivery, the guide ramp guides the coffee powder to move smoothly along the predetermined path, reducing disorderly scattering of powder within the channel. The transition surface provides a smooth transition, preventing turbulence caused by sudden shape changes in the coffee powder during flow, further reducing the possibility of powder scattering. The dust baffle is positioned on the same vertical surface where the vertical surface and the extension of the guide ramp intersect, precisely intercepting any potentially scattered coffee powder and effectively preventing it from flying out of the powder delivery channel, thus improving the dust-proof effect of the coffee machine's grinding device.

[0015] Preferably, the powder-blocking sheet is made of a soft material.

[0016] The choice of a soft material gives the coffee duster a certain degree of flexibility and elasticity, preventing excessive compression and damage to the coffee grounds upon contact, thus ensuring the integrity and quality of the coffee powder. Simultaneously, this soft material can deform appropriately under the impact of coffee grounds, better conforming to the shape of the channel and further enhancing the effectiveness of intercepting flying coffee powder. Moreover, soft materials typically have good wear resistance, able to withstand prolonged exposure to coffee grounds, extending the lifespan of the duster and reducing replacement costs.

[0017] By adopting the above technical solution, this utility model significantly improves the anti-powder-spraying performance of the coffee machine's grinding device through its unique powder-blocking plate structure design and the selection of soft materials. Specifically, the powder-blocking plate utilizes the geometry of the channel cover and guides the coffee powder to move in an orderly manner using a guide slope, reducing the disorderly scattering of powder within the channel. The transition curved surface ensures the smooth flow of coffee powder, avoiding turbulence caused by abrupt changes in shape, thereby further reducing the risk of powder scattering. Simultaneously, the powder-blocking plate is precisely positioned at key locations, effectively intercepting potentially scattered coffee powder and preventing it from escaping from the powder delivery channel. The application of soft materials not only protects the integrity and quality of the coffee powder but also enhances the interception effect through its flexibility and elasticity. Furthermore, its wear resistance extends the service life of the powder-blocking plate, reducing operating costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the powder delivery channel.

[0020] Figure 3 This is an exploded view of the parts of this utility model.

[0021] Figure 4 This is a top view of the present invention.

[0022] Figure 5 for Figure 4 AA sectional view.

[0023] Figure 6 Cross-sectional view of the powder delivery channel.

[0024] Figure 7 for Figure 6 Enlarged view of part B.

[0025] In the diagram: 1. Grinding device; 2. Support base; 21. Powder outlet; 3. Powder delivery channel; 31. Channel upper cover; 32. Channel lower cover; 32. Guide slope; 321. Transition curved surface; 322. Vertical surface; 323. Powder baffle; 33. Powder inlet; 34. Powder gathering inlet; 35. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] A coffee powder anti-scattering structure for a coffee machine grinding device mainly comprises two parts: a grinding device 1 and a support base 2. The grinding device 1 is securely mounted on the support base 2, which has a dedicated powder outlet 21. During operation, the grinding device 1 delivers the ground coffee powder to the outlet 21. A powder feeding channel 3 is detachably installed at the outlet 21, and this channel has a powder inlet 34 directly connected to the outlet 21. The powder inlet 34 features a guide slope 321 and a powder baffle 33. The guide slope 321 is inclined downwards along the direction of coffee powder movement, with an angle α between the guide slope 321 and the horizontal, precisely controlled between 47° and 57° for optimal flow guidance. The powder baffle 33 is suspended at the powder inlet 34, with its bottom end maintaining a certain distance from the guide slope 321, thus forming an effective powder collection point 35 to prevent coffee powder from scattering during transport.

[0028] The coffee powder delivery channel 3 consists of two parts: an upper cover 31 and a lower cover 32, which are securely fixed together by a snap-fit ​​structure for easy disassembly and cleaning. The powder inlet 34 is located in the upper part of the lower cover 32, while the guide ramp 321 extends from the powder inlet 34 towards the lower part of the lower cover 32, ensuring smooth flow of coffee powder. An installation groove is provided on the upper part of the upper cover 31, and a corresponding installation port is provided on the upper end of the powder-blocking plate 33; when the powder-blocking plate 33 is installed inside the coffee powder delivery channel 3, the installation port will precisely insert into the installation groove for stable fixation.

[0029] The interior of the channel cover 32 is arranged from top to bottom with a guide slope 321, a transition curved surface 322, and a vertical surface 323. The powder-blocking plate 33 is arranged on the same vertical plane where the extension lines of the vertical surface 323 and the guide slope 321 intersect, further optimizing the aggregation and guidance of the powder flow. The powder-blocking plate 33 is made of soft material, which has good flexibility and adaptability, and can effectively prevent coffee powder from splashing and wasting under different working conditions, improving the overall user experience and ease of cleaning.

Claims

1. A coffee machine grinding device with anti-powder-spraying structure, comprising a grinding device and a support base, wherein the grinding device is mounted on the support base, the support base has a powder outlet, and the grinding device feeds powder to the powder outlet, characterized in that: The powder outlet is detachably equipped with a powder feeding channel, which has a powder inlet communicating with the powder outlet. The powder inlet is equipped with a guide slope and a powder baffle. The guide slope is inclined downward along the direction of powder movement, and the downward inclination angle of the guide slope is α, where 47°<α<57°. The powder baffle is suspended at the powder inlet, and the bottom end of the powder baffle is separated from the guide slope to form a powder gathering opening.

2. The anti-powder-flying structure of the coffee machine grinding device according to claim 1, characterized in that: The powder feeding channel includes a channel lower cover and a channel lower cover, which are fixedly connected by a snap fastener. The powder inlet is located on the upper part of the channel lower cover, and the guide slope extends from the powder inlet to the lower part of the channel lower cover.

3. The anti-powder-flying structure of the coffee machine grinding device according to claim 2, characterized in that: The upper part of the channel cover is provided with an installation groove, and the upper end of the powder-blocking plate is provided with an installation port. When the powder-blocking plate is installed into the powder feeding channel, the installation port is inserted into the installation groove.

4. The anti-powder-flying structure of the coffee machine grinding device according to claim 2, characterized in that: The lower cover of the channel is provided with a guide slope, a transition curved surface and a vertical surface in sequence from top to bottom, and the powder-blocking plate is set on the same vertical surface at the intersection of the extension lines of the vertical surface and the guide slope.

5. The anti-powder-flying structure of the coffee machine grinding device according to claim 1, characterized in that: The powder-blocking sheet is made of a soft material.

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