Low-residue single-dose electric bean grinder

Abstract

This utility model relates to a low-residue single-dose electric coffee grinder, comprising a housing, a motor, a feeding assembly, a grinding assembly, a powder dispensing assembly, and a powder receiving assembly. The motor is installed inside the housing, and a grinding chamber is provided in the upper part of the housing. The grinding assembly consists of a grinding disc mounted on the motor shaft inside the grinding chamber. The powder receiving assembly consists of a powder receiving cup and a chuck located below the powder dispensing pipe. A powder blowing device consisting of an accordion-style telescopic tube and a pressing cover is provided at the inlet of the feeding assembly above the grinding chamber. When grinding is finished, pressing the pressing cover of the powder blowing device compresses the accordion-style telescopic tube to deliver air pressure to the grinding chamber, blowing the coffee powder adhering to the grinding chamber, the surface of the grinding disc, and the corners into the powder receiving cup. It has a simple structure, is easy to operate, has low coffee powder residue, low cross-contamination during coffee making, pure taste, and good quality.

Description

Technical Field

[0001] This utility model relates to the field of coffee grinding equipment technology, and in particular to a low-residue single-dose electric coffee grinder. Background Technology

[0002] Single-dose grinding is the mainstream method in the specialty coffee industry. It requires that the amount of coffee powder residue in the grinding chamber be extremely low after each grind to avoid cross-contamination between different coffee bean flavors and ensure the quality and flavor purity of each cup of coffee.

[0003] Existing single-dose electric coffee grinders generally suffer from residual coffee grounds. This is due to two main reasons: First, ground coffee powder easily adheres to the walls of the horizontal grinding chamber and discharge channel due to static electricity and oils. Second, traditional products rely on gravity and the centrifugal force of the rotating grinding disc to discharge the powder, making it difficult to completely remove powder particles accumulated in hard-to-reach areas. While tapping or electric vibration methods are generally used to reduce residual powder, tapping is cumbersome and ineffective, while electric vibration not only increases product costs but also yields unsatisfactory results.

[0004] Therefore, there is an urgent need for a single-dose electric coffee grinder that is simple in structure, easy to operate, and can effectively reduce residual coffee powder. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing a low-residue single-dose electric coffee grinder that combines mechanical structure and physical principles, resulting in a simple structure, convenient operation, and minimal coffee powder residue.

[0006] The technical solution for realizing this utility model is as follows: A low-residue single-dose electric coffee grinder includes a housing, a motor, a feeding assembly, a grinding assembly, a powder dispensing assembly, and a powder receiving assembly. The motor is installed inside the housing, and a grinding chamber is provided on the upper part of the housing. The grinding assembly consists of a grinding disc mounted on the motor shaft inside the grinding chamber. The feeding assembly consists of a feeding connector installed on the housing above the grinding chamber. The powder dispensing assembly consists of a powder dispensing pipe installed on the side wall of the grinding chamber, with an anti-static coating on the inner wall of the dispensing pipe. The powder receiving assembly consists of a powder receiving cup and a chuck located below the dispensing pipe. The grinder is characterized by a powder blowing device at the inlet end of the feeding connector. The powder blowing device consists of a bellows-type telescopic tube installed at the inlet end of the feeding connector and a pressing cap installed at the inlet end of the bellows-type telescopic tube. The pressing cap is snap-fitted into the inlet end of the bellows-type telescopic tube, and a sealing ring is provided between the two.

[0007] The preferred embodiment is that the axes of the grinding chamber, the grinding disc, and the motor shaft have an inclination angle with the horizontal plane, and the inclination angle is tilted towards the powder outlet pipe.

[0008] The preferred option is that the optimal tilt angle is 75º.

[0009] The beneficial effects of this utility model are: a powder blowing device is set at the inlet of the feeding component above the grinding chamber. When grinding is finished, the pressing cover of the powder blowing device is pressed to compress the accordion-type telescopic tube to deliver air pressure to the grinding chamber, blowing the coffee powder adhering to the grinding chamber, the surface and corners of the grinding disc into the powder receiving cup. It has a simple structure, is easy to operate, has little coffee powder residue, low cross-contamination in the coffee making process, pure taste and good quality. Attached Figure Description

[0010] Figure 1 This is a structural cross-sectional view of the present invention.

[0011] Figure 2 This is a schematic diagram of the external structure of this utility model.

[0012] In the diagram: 1. Housing, 2. Motor, 3. Grinding blade, 4. Powder receiving cup, 5. Press cover, 6. Inlet channel, 7. Bellows-style telescopic tube, 8. Powder outlet tube, 9. Grinding chamber, 10. Feed connector, 11. Chuck, 12. Sealing ring, A. Inclined angle. Detailed Implementation

[0013] like Figure 1 , Figure 2The low-residue single-dose electric coffee grinder shown includes a housing 1, a motor 2, a feeding assembly, a grinding assembly, a powder dispensing assembly, and a powder receiving assembly. The motor 2 is installed inside the housing 1, and a grinding chamber 9 is located on the upper part of the housing 1. The grinding assembly consists of a grinding disc 3 mounted on the motor 2's shaft within the grinding chamber 9. The motor 2 drives the grinding disc 3 to rotate, grinding the coffee beans in the grinding disc 9 into coffee powder. The grinding disc 3 is a flat disc. The feeding assembly consists of a feeding connector 10 installed on the housing 1 above the grinding chamber 9. The inlet channel 6 within the feeding connector 10 communicates with the grinding chamber 9. The inlet channel 6 has a conical hole at its connection point with the grinding chamber 9, guiding the coffee beans into the center of the grinding chamber 9. The powder dispensing assembly consists of a powder dispensing pipe 8 installed on the side wall of the grinding chamber 9. The coffee powder in the grinding chamber 9 flows out from the powder dispensing pipe 8 under the centrifugal force of the rotating grinding disc 3. The inner wall of the powder dispensing pipe 8 is coated with an anti-static coating to prevent coffee powder residue. The powder receiving assembly consists of components installed on the powder dispensing pipe 8... The lower part consists of a powder receiving cup 4 and a chuck 11. The powder receiving cup 4 is connected to the chuck 11 by an annular groove on the outer side of the cup opening. Before receiving powder, the powder receiving cup 4 is embedded in the chuck 11, and after receiving powder, the powder receiving cup 4 is removed, which is convenient to operate. Its feature is that a powder blowing device is provided at the inlet end of the feeding connector 10. The powder blowing device consists of a bellows-type telescopic tube 7 installed at the inlet end of the feeding connector 10 and a pressing cover 5 installed at the inlet end of the bellows-type telescopic tube 7. The pressing cover 5 is embedded in the chuck 11 with a snap-fit ​​structure. A sealing ring 12 is provided between the inlet end of the accordion-style telescopic tube 7 and the pressing cover 5 to maintain the seal when the pressing cover 5 is closed. The sealing ring 12 is made of food-grade plastic material, and the accordion-style telescopic tube 7 is made of elastic polymer material that can stretch and contract freely. When the coffee powder is finished being dispensed, the pressing cover 5 is pressed lightly to compress the accordion-style telescopic tube 7, input air pressure into the grinding chamber 9, and blow the coffee powder adhering to the surface and corners of the grinding chamber 9 and the grinding disc 3 into the powder receiving cup 4, reducing coffee powder residue and improving the purity of coffee powder.

[0014] The axes of the grinding chamber 9, the grinding disc 3, and the motor 2 have an inclination angle A with the horizontal plane. The inclination angle A is tilted towards the powder outlet pipe 8. The coffee powder can be smoothly output by utilizing its own weight and the inclination of the bottom surface of the grinding chamber 9, further improving the coffee powder output performance.

[0015] The optimal angle of the tilt angle A is 75º, and the angle of the tilt angle A can be designed within the range of 75º to improve the powder output effect.

Claims

1. A low-residue single-dose electric coffee grinder, comprising a housing (1), a motor (2), a feeding assembly, a grinding assembly, a powder dispensing assembly, and a powder receiving assembly, wherein the motor (2) is installed inside the housing (1), and a grinding chamber (9) is provided on the upper part of the housing (1); the grinding assembly is composed of a grinding disc (3) mounted on the rotating shaft of the motor (2) inside the grinding chamber (9); the feeding assembly is composed of a feeding connector (10) mounted on the housing (1) above the grinding chamber (9); the powder dispensing assembly is composed of a powder dispensing pipe (8) mounted on the side wall of the grinding chamber (9), the inner wall of the powder dispensing pipe (8) is provided with an antistatic coating; and the powder receiving assembly is composed of a powder receiving cup (4) and a chuck (11) disposed below the powder dispensing pipe (8); characterized in that: A powder blowing device is provided at the inlet end of the feed connector (10). The powder blowing device consists of a bellows-type telescopic tube (7) installed at the inlet end of the feed connector (10) and a pressing cover (5) installed at the inlet end of the bellows-type telescopic tube (7). The pressing cover (5) is embedded in the inlet end of the bellows-type telescopic tube (7) with a snap-fit ​​structure, and a sealing ring (12) is provided between the two.

2. A low-dose single-serve electric bean grinder with low residual powder according to claim 1, characterized in that: The axes of the grinding chamber (9), the grinding disc (3) and the motor (2) have an inclination angle (A) with respect to the horizontal plane, and the inclination angle (A) is tilted towards the powder outlet pipe (8).

3. A low-dose single-serve electric bean grinder with low residual powder according to claim 2, characterized in that: The optimal angle for the tilt angle (A) is 75º.

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