A coffee machine extraction mechanism

Abstract

This invention relates to a coffee machine extraction mechanism, including a drive assembly. The output end of the drive assembly is connected to a powder container, and a powder filling channel is provided above the powder container. An extraction assembly is mounted on the drive assembly. The other end of the powder container is connected to a water inlet baffle. The drive assembly drives the powder container to rotate to the position corresponding to the lower end of the powder filling channel. After coffee powder falls into the powder container, the drive assembly continues to drive the powder container to rotate to the extraction assembly and seal it with the extraction assembly. Water is then pumped into the extraction assembly through the water inlet baffle to achieve extraction. After extraction, when the drive assembly drives the powder container to reverse to the position below the powder filling channel, excess coffee powder in the powder filling channel can fall in. The reverse rotation continues, and the remaining coffee powder accumulated in the powder container is pushed out through one end of the water inlet baffle. This structure is simple and reasonable, easy to operate, effectively improves the extraction effect, and facilitates the cleaning of accumulated residue.

Description

Technical Field

[0001] This invention relates to the field of coffee machine technology, and more particularly to a coffee machine extraction mechanism. Background Technology

[0002] Currently, coffee extraction devices are used to extract coffee. The basic principle is that ground coffee powder is placed in the extraction device and extruded into a coffee puck. High-temperature, high-pressure water flows through the puck, extracting substances from the coffee powder. This extract, combined with hot water, forms coffee, which is then discharged into a drinking container. The extracted coffee puck is then discharged. Existing extraction devices have a movable part and a capsule that can move along the longitudinal axis. An operating lever moves the movable part, causing the capsule to enter its housing and lower its axis towards the axis of the movable part. As a result, the capsule collar passes below a stop device. Hot water is then supplied through a pipe in the movable part, flowing through the capsule to extract the coffee. This type of structure achieves coffee extraction through the reciprocating movement of the capsule along the axial direction, combined with water flow. However, because the movable part and capsule are axially aligned and move together, and the operating lever oscillates when controlling the movement of the movable part towards the capsule, the movable part and capsule may become tilted or misaligned. This affects the extraction process of the coffee machine. Furthermore, this structure is relatively complex, and operating the movable part via a lever is cumbersome. In addition, because coffee powder inside the capsule accumulates and remains after each extraction round when extracted with hot water, the extraction is not thorough and cleaning is not convenient. Summary of the Invention

[0003] The purpose of this invention is to provide a coffee machine extraction mechanism that can effectively improve the extraction effect, has a simple and reasonable structure, is easy to operate, and facilitates the cleaning of accumulated residue.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0005] A coffee machine extraction mechanism includes a drive assembly, the output end of which is connected to a powder container. A filling channel is provided above the powder container to facilitate the coffee powder falling into the container. The drive assembly is equipped with an extraction assembly that fits into the powder container. A water inlet baffle is connected to the other end of the powder container. During operation, the drive assembly drives the powder container to rotate in a ring, cooperating with the filling channel, extraction assembly, and water inlet baffle to sequentially perform powder filling, extraction, and powder removal.

[0006] Optionally, the water inlet baffle includes a water inlet pipe that is sealed to one end of the powder holding cylinder. A baffle plate is provided at one end of the water inlet pipe that extends into the powder filling channel. A first sealing ring is provided between the baffle plate and the powder holding cylinder. A water inlet hole is connected in the middle between the water inlet pipe and the baffle plate.

[0007] In a preferred embodiment, the extraction assembly includes an extraction rack and a filter plate, with an extraction chamber formed between the extraction rack and the filter plate, a coffee flow channel provided on the extraction rack, and a second sealing ring provided between the filter plate and the extraction rack.

[0008] In a preferred embodiment, an arc-shaped rotation limiting groove is provided on the substrate corresponding to the lower part of the water inlet pipe, and a rotation limiting rod is provided at the lower end of the water inlet pipe.

[0009] In a preferred embodiment, the cross-section of the powder-containing cylinder is fan-shaped, the outer diameter of the water inlet pipe is smaller than the inner diameter of the powder-containing cylinder, the outer diameter of the inner end of the baffle plate is smaller than or equal to the inner diameter of the powder-containing cylinder, and the water inlet pipe and the baffle plate are integrally formed.

[0010] In a preferred embodiment, the driving component includes a substrate and a motor disposed in the middle of the substrate, and the extraction component is disposed on the substrate.

[0011] More preferably, the upper end of the output shaft of the motor is provided with a rotating disk, and the rotating disk is integrally connected to the powder holding cylinder through a connecting block.

[0012] The beneficial effects of this invention are as follows: It includes a driving component, the output end of which is connected to a powder-holding cylinder. A filling channel is provided above the powder-holding cylinder to facilitate the coffee powder falling into the cylinder. The driving component is equipped with an extraction component that fits snugly onto the powder-holding cylinder. The other end of the powder-holding cylinder is connected to a water inlet baffle. During operation, the driving component drives the powder-holding cylinder to rotate in a ring, cooperating with the filling channel, extraction component, and water inlet baffle to sequentially achieve powder filling, extraction, and powder removal. Specifically, the driving component drives the powder-holding cylinder to rotate below the lower end corresponding to the filling channel, waiting for the coffee powder in the cylinder to... After falling into the powder container, the drive assembly continues to drive the powder container to rotate to the extraction assembly, where it is sealed and connected. Water is then pumped into the extraction assembly via the water inlet baffle to achieve extraction. After extraction, the drive assembly drives the powder container to reverse. When it reverses to below the powder filling channel, excess coffee powder in the channel falls in. The powder container continues to reverse until it reaches the maximum limit position of the water inlet baffle. At the same time, the water inlet baffle pushes out the accumulated coffee powder in the powder container. This structure is simple and reasonable, easy to operate, effectively improves the extraction effect, and facilitates the cleaning of accumulated residue. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention.

[0014] Figure 2 This is an exploded structural diagram of the present invention.

[0015] Figure 3This is a schematic diagram of the powder-containing cylinder in this invention when it is not rotating.

[0016] Figure 4 This is a schematic diagram of the structure of the powder-holding cylinder rotating to the bottom of the powder-filling channel to load powder in this invention.

[0017] Figure 5 This is a schematic diagram of the structure of the powder-containing cylinder rotating to seal and extract with the filter plate in this invention.

[0018] Figure 6 This is a schematic diagram of the structure of the powder-containing cylinder after it has been reversed in this invention. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0020] like Figure 1-6 As shown, a coffee machine extraction mechanism includes a drive assembly, which includes a base plate 1 and a motor 2 disposed in the middle of the base plate 1. The extraction assembly is disposed on the base plate 1. The output end of the motor 2 is connected to a powder container 3. A filling channel 4 is provided above the powder container 3 to facilitate the coffee powder in the container falling into the powder container 3. The base plate 1 is provided with an extraction assembly that can be fitted and connected to the powder container 3. The other end of the powder container 3 is connected to a water inlet baffle disposed on the base plate 1. The motor 2 drives the powder container 3 to rotate in a ring to a position corresponding to the lower end of the filling channel 4. A rotating disk 16 is provided at the upper end of the output shaft of the motor 2. The rotating disk 16 and the powder container 3 are connected by a connecting block 17. The motor 2 is a reversible motor. After the coffee powder in the barrel falls into the powder holding barrel 3, the motor 2 continues to drive the powder holding barrel 3 to rotate in a ring to the extraction component, and then it is sealed to the extraction component. The water is then pumped into the extraction component through the water inlet baffle to achieve extraction. After extraction, the motor 2 drives the powder holding barrel 3 to rotate in a ring. When it rotates to below the powder filling channel 4, it facilitates the falling of excess coffee powder into the powder filling channel 4. The powder holding barrel 3 continues to rotate in a ring until it reaches the maximum limit position of the water inlet baffle. At the same time, the accumulated coffee powder in the powder holding barrel 3 is pushed out through one end of the water inlet baffle. This structure is simple and reasonable, easy to operate, can effectively improve the extraction effect, and facilitates the cleaning of accumulated residue.

[0021] In this embodiment, the water inlet baffle includes a water inlet pipe 5 sealed to one end of the powder container 3. A baffle plate 6 is provided at one end of the water inlet pipe 5 that extends into the powder filling channel 4. A first sealing ring 7 is provided between the baffle plate 6 and the powder container 3. A water inlet hole 8 communicates between the water inlet pipe 5 and the baffle plate 6 in the middle. The water inlet pipe 5 and the baffle plate 6 rotate together with the powder container 3 as it is driven to rotate by the motor 2. When the powder container 3 rotates to the position where it is sealed to the extraction component, a water pump connected to the water inlet pipe 5 pumps water from the water inlet hole 8 into the powder container 3, where it mixes and extracts the coffee powder with the extraction component. After extraction, the water inlet pipe 5 is fixed. When the powder container 3 is driven to reverse by the motor 2, the baffle plate 6 cleans the accumulated residue inside the powder container 3.

[0022] In this embodiment, the extraction assembly includes an extraction frame 9 and a filter plate 10. An extraction chamber 11 is formed between the extraction frame 9 and the filter plate 10. The extraction frame 9 is provided with a coffee flow channel 12. A second sealing ring 13 is provided between the filter plate 10 and the extraction frame 9. When the motor 2 drives the powder container 3 to be sealed and connected to the filter plate 10 with the cooperation of the second sealing ring 13, the water pump pumps water from the water inlet 8 into the powder container 3 to mix with the coffee powder. After mixing, the water enters the extraction chamber 11 for extraction after passing through the filter plate 10. Finally, the extracted coffee flows out through the coffee flow channel 12.

[0023] In this embodiment, an arc-shaped rotation limiting groove 14 is provided on the substrate 1 below the water inlet pipe 5. A rotation limiting rod 15 is provided at the lower end of the water inlet pipe 5. During the process of the powder holding cylinder 3 being rotated by the motor 2 and sealed with the filter disc 10, and during the reverse rotation of the powder holding cylinder 3 after extraction, the rotation of the powder holding cylinder 3 will drive the water inlet pipe 5 to rotate together. The rotation of the water inlet pipe 5 follows the rotation trajectory of the rotation limiting rod 15 within the moving space of the rotation limiting groove 14.

[0024] In this embodiment, the cross-section of the powder container 3 is fan-shaped, the outer diameter of the water inlet pipe 5 is smaller than the inner diameter of the powder container 3, the outer diameter of the inner end of the baffle plate 6 is smaller than or equal to the inner diameter of the powder container 3, and the water inlet pipe 5 and the baffle plate 6 are integrally formed. The powder container 3, the water inlet pipe 5 and the extraction components are set into a ring structure that can rotate in both directions. The overall rotation adjustment is simple and reasonable, which is beneficial to improving the extraction effect of coffee and making cleaning after extraction convenient.

[0025] The working principle of the invention is as follows: During operation, when motor 2 rotates clockwise to the bottom of the powder filling channel 4, after a certain amount of coffee powder falls into the powder holding cylinder 3, motor 2 continues to drive the powder holding cylinder 3 to rotate to one side of the extraction frame 9 and seal it with the filter plate 10 through the first sealing ring 7. The rotation of the powder holding cylinder 3 will drive the water inlet pipe 5 to rotate as well. Then, the water pump will flow into the powder holding cylinder 3 through the water inlet baffle and mix it with the coffee powder. After passing through the filter plate 10, the mixture enters the extraction chamber 11 for extraction. Finally, the extracted coffee powder passes through the coffee flow channel 12. After the coffee flows out, the motor 2 drives the powder container 3 to reverse. When it reverses to below the powder filling channel 4, it facilitates the falling of excess coffee powder into the powder filling channel 4. The powder container 3 continues to reverse, driving the water inlet pipe 5 to reverse as well. When the water inlet pipe 5 rotates to the maximum position on the right side of the rotation limit rod 15, it stops moving. At this time, the powder container 3 continues to reverse until the baffle plate 6 rotates to the maximum position on the far left of the powder container 3. In this way, the baffle plate 6 pushes out the accumulated coffee powder in the powder container 3.

[0026] Based on the ideas of this invention, there may be changes in specific implementation methods and application scope. The content of this specification should not be construed as a limitation of this invention.

Claims

1. A coffee machine extraction mechanism, characterized in that: The device includes a drive assembly, the output end of which is connected to a powder container. The powder container has a filling channel above it to facilitate the coffee powder falling into the powder container. The drive assembly has an extraction assembly that fits into the powder container. The other end of the powder container is connected to a water inlet baffle. During operation, the drive assembly drives the powder container to rotate in a ring. In conjunction with the filling channel, extraction assembly, and water inlet baffle, the powder filling, extraction, and powder removal are achieved sequentially. The water inlet baffle includes a water inlet pipe that is sealed to one end of the powder holding cylinder. A baffle plate is provided at one end of the water inlet pipe that extends into the powder filling channel. A first sealing ring is provided between the baffle plate and the powder holding cylinder. A water inlet hole is connected in the middle between the water inlet pipe and the baffle plate. The extraction assembly includes an extraction rack and a filter plate, an extraction chamber is formed between the extraction rack and the filter plate, a coffee flow channel is provided on the extraction rack, and a second sealing ring is provided between the filter plate and the extraction rack; The drive assembly includes a base plate and a motor located in the middle of the base plate. An arc-shaped rotation limiting groove is provided on the base plate corresponding to the lower part of the water inlet pipe, and a rotation limiting rod is provided at the lower end of the water inlet pipe.

2. The coffee machine extraction mechanism according to claim 1, characterized in that: The cross-section of the powder-containing cylinder is fan-shaped, the outer diameter of the water inlet pipe is smaller than the inner diameter of the powder-containing cylinder, the outer diameter of the inner end of the baffle plate is smaller than or equal to the inner diameter of the powder-containing cylinder, and the water inlet pipe and the baffle plate are integrally formed.

3. The coffee machine extraction mechanism according to claim 1, characterized in that: The extraction component is disposed on the substrate.

4. The coffee machine extraction mechanism according to claim 3, characterized in that: The upper end of the output shaft of the motor is provided with a rotating disk, and the rotating disk is integrally connected to the powder holding cylinder through a connecting block.

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