An integrated coffee grinder and brewing assembly for coffee machines

By incorporating a drive mechanism and an automatic switching connector into the coffee machine, the problems of complex multiple connection operations and large device size in existing technologies are solved, achieving the effects of simplified operation and device miniaturization.

CN224441020UActive Publication Date: 2026-07-03ZHONGSHAN DONLIM WEILI ELECTRICAL APPLIANCES CO LTD
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Patent Information

Application Number
CN202521710874.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-12
Publication Date
2026-07-03
Estimated Expiration
2035-08-12

AI Technical Summary

Technical Problem

Existing coffee machines require multiple connections of the funnel assembly during the brewing process, making operation complex and the equipment bulky and space-consuming.

Method used

The powder receiver is connected to the grinding mechanism via a connector, and automatic switching between the two is achieved through spring components and solenoid valves, simplifying operation and reducing equipment size.

Benefits of technology

Simplified user operation, smaller device size, and reduced space occupation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to an integrated coffee grinder and brewing assembly for a coffee machine, including a grinding mechanism, a brewing mechanism, and a connector. The grinding and brewing mechanisms each have a powder dispensing section and a brewing / water dispensing section. The connector is equipped with a powder receiver, which has a brewing chamber. The connector can drive the powder receiver to connect with the grinding or brewing mechanism, thus connecting the brewing chamber with the powder dispensing or brewing / water dispensing section. The connector is connected to a drive mechanism, which can move the connector from the grinding mechanism towards the brewing mechanism; or the drive mechanism can move the connector from the brewing mechanism towards the grinding mechanism. The user only needs to complete the connection action between the powder receiver and the connector once during the entire coffee-making process, simplifying the operation. Furthermore, eliminating the need for multiple additional connectors for connecting with the powder receiver allows for a reduction in the size of the coffee machine and the space it occupies.
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Description

Technical Field

[0001] This utility model relates to the technical field of household appliances, specifically to an integrated coffee grinding and brewing assembly for a coffee machine. Background Technology

[0002] Patent document CN214208078U discloses "a coffee grinder", the description of which includes "a coffee grinder, comprising a body, a grinding mechanism, a brewing mechanism and a funnel assembly; the body is provided with at least a grinding chamber and a brewing chamber, the grinding mechanism includes a bean storage assembly, a bean grinding assembly, an adjusting assembly and a powder dispensing assembly, the bean storage assembly is located above the body and its discharge end is connected to the grinding chamber, the bean grinding assembly is located in the grinding chamber, the feed end of the bean grinding assembly is connected to the discharge end of the bean storage assembly, the adjusting assembly is located between the bean storage assembly and the bean grinding assembly, the powder dispensing assembly is located below the grinding chamber and is connected to the discharge end of the bean grinding assembly; rotating the bean storage assembly, the adjusting assembly can control the opening and closing of the discharge end of the bean storage assembly and the adjustment of the grinding coarseness of the bean grinding assembly; the brewing mechanism is located in the brewing chamber; the funnel assembly is used to start the bean grinding assembly and receive the coffee powder output by the powder dispensing assembly when connected to the powder dispensing assembly, and after receiving the coffee powder, it is connected to the brewing head assembly to brew coffee and output coffee."

[0003] When using the coffee machine, users need to first connect the funnel assembly to the powder dispenser to receive coffee grounds, then remove the funnel assembly from the dispenser and connect the coffee-filled funnel assembly to the brewing head assembly to brew the coffee. This process is relatively complex, requiring users to hold the funnel assembly and make multiple connection movements between the dispenser and brewing head, increasing the operational difficulty. Furthermore, because both the dispenser and brewing head assemblies require connectors corresponding to the funnel assembly, the overall size of the coffee machine is relatively large, requiring more space.

[0004] Therefore, further improvements are needed. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an integrated grinding and brewing assembly for coffee machines. By setting a drive mechanism, the connector can drive the powder dispenser to move between the grinding mechanism and the brewing mechanism. During the entire coffee making process, the powder dispenser only needs to connect to the connector once, eliminating the need for multiple connection actions by the user and simplifying the operation. At the same time, the elimination of multiple additional connectors for connecting to the powder dispenser allows for a reduction in the size of the coffee machine and the space it occupies.

[0006] The purpose of this utility model is achieved as follows:

[0007] An integrated coffee grinder and brewing assembly for a coffee machine, comprising:

[0008] The grinding mechanism has a powder outlet.

[0009] A brewing facility, which has a brewing and dispensing section.

[0010] The connector is equipped with a powder receiver, which has a brewing chamber.

[0011] Among them: the connector can drive the powder receiving device to connect with the grinding mechanism or brewing mechanism to make the brewing chamber communicate with the powder outlet or brewing water outlet; the connector is connected to a drive mechanism, which can drive the connector to move from the grinding mechanism towards the brewing mechanism; or the drive mechanism can drive the connector to move from the brewing mechanism towards the grinding mechanism.

[0012] As a specific embodiment, the driving mechanism includes a fixed bracket and a spring member for driving the connector to move from the grinding mechanism toward the brewing mechanism. The two ends of the spring member are connected and cooperate with the fixed bracket and the connector member, respectively. The powder dispensing part and the brewing water dispensing part are distributed along the direction of the spring member from deformation to reset.

[0013] As a specific embodiment, the grinding mechanism is provided with a locking mechanism on the outside. When the connector moves to connect the powder outlet with the brewing chamber of the powder receiver, the spring deforms and the connector is connected to the locking mechanism. When the connector separates from the locking mechanism, the spring resets and pulls the connector to move so that the brewing water outlet connects with the brewing chamber of the powder receiver.

[0014] As a specific embodiment, the locking mechanism includes a solenoid valve and a valve stem. The connector is provided with a limiting part corresponding to the valve stem. When the solenoid valve controls the valve stem to extend so that the limiting part abuts against the valve stem on the side facing the return direction of the spring, the spring deforms and the powder outlet remains connected to the brewing chamber of the powder receiver. When the solenoid valve controls the valve stem to retract so that the limiting part separates from the valve stem, the spring resets and pulls the connector to move towards the brewing water outlet so that the brewing water outlet remains connected to the brewing chamber.

[0015] As a specific embodiment, the valve stem and / or the limiting part are provided with a guide slope. The guide slope is inclined towards the solenoid valve side along the direction of spring reset. When the side of the limiting part opposite to the direction of spring reset abuts against the valve stem, the limiting part and the valve stem slide together through the guide slope, and the limiting part pushes the valve stem to be retracted. When the limiting part moves to a misalignment with the valve stem along the direction of spring deformation, the valve stem resets and extends, and the side of the limiting part facing the direction of spring reset abuts against the valve stem.

[0016] As a specific embodiment, the outer side of the connector is provided with two spring connecting ears arranged symmetrically in the radial direction, and each spring connecting ear is connected to a corresponding spring component.

[0017] As a specific embodiment, the fixed bracket is provided with a limiting side plate, which is concentrically arranged with the connector, and the inner side of the limiting side plate is adjacent to and limited to the outer side of the connector.

[0018] As a specific solution, the limiting side plate is provided with a hollow opening at the position corresponding to the powder dispensing part, and the powder dispensing part is connected to the brewing chamber through the hollow opening.

[0019] As a specific embodiment, the grinding mechanism and the brewing mechanism are arranged adjacent to each other in the horizontal direction. The brewing water outlet and the powder outlet are distributed sequentially from top to bottom. The brewing water outlet is located vertically above the powder receiver, and the powder outlet is located on the outside of the powder receiver. The powder outlet is inclined downward along the direction from the grinding mechanism to the connector. The upper side of the powder receiver is provided with a feed inlet. The brewing water outlet and the powder outlet are respectively connected to the brewing chamber through the feed inlet. The side wall of the connector is provided with a powder inlet hole for communicating with the connector. The powder inlet hole is inclined downward along the direction from the grinding mechanism to the connector.

[0020] As a specific embodiment, the brewing water outlet is located on the lower side of the brewing mechanism. The brewing mechanism is connected to a water inlet pipe. A water distribution screen is provided between the water outlet end of the water inlet pipe and the brewing water outlet. The powder part of the water distribution screen has several water outlet holes.

[0021] The beneficial effects of this utility model are:

[0022] Users only need to connect the coffee dispenser and connector once during the entire coffee-making process, simplifying the operation. At the same time, eliminating the need for multiple additional connectors for the dispenser allows for a smaller coffee machine size and reduces the space it occupies. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the usage state of an embodiment of the present utility model. Figure 1 .

[0024] Figure 2 This is a schematic diagram of the usage state of an embodiment of the present utility model. Figure 2 .

[0025] Figure 3 This is a schematic diagram of the usage state of an embodiment of the present utility model. Figure 3 .

[0026] Figure 4 This is a schematic diagram of the usage state of an embodiment of the present utility model. Figure 4 .

[0027] Figure 5 This is a cross-sectional schematic diagram of an embodiment of the present utility model.

[0028] Figure 6 This is an enlarged view of embodiment A of the present invention. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] See Figures 1-6 The coffee machine uses an integrated grinding and brewing assembly, including:

[0031] The grinding mechanism 1 is used to grind coffee beans into coffee powder. The grinding mechanism 1 has a powder outlet 11 through which the coffee powder can be discharged.

[0032] Brewing mechanism 2 is used to provide high-temperature hot water. Brewing mechanism 2 has a brewing water outlet 21 through which high-temperature hot water can be discharged.

[0033] The coffee powder receiver 4 is used to receive coffee powder from the powder outlet 11 of the grinding mechanism 1 through the brewing chamber 43. After receiving the coffee powder, the coffee powder receiver 4 can receive hot water from the brewing water outlet 21 of the brewing mechanism 2 and brew coffee in the brewing chamber 43 for the user to drink.

[0034] Connector 3 is used to fix the powder receiver 4 so that the powder receiver 4 can stably receive coffee powder and hot water.

[0035] The connector 3 can drive the powder receiver 4 to connect with the grinding mechanism 1 or the brewing mechanism 2, so that the brewing chamber 43 is connected with the powder outlet 11 or the brewing water outlet 21. The connector 3 can drive the powder receiver 4 to move by manual or mechanical transmission.

[0036] The connector 3 is connected to a drive mechanism, which can drive the connector 3 to move from the grinding mechanism 1 toward the brewing mechanism 2; or the drive mechanism can drive the connector 3 to move from the brewing mechanism 2 toward the grinding mechanism 1. In this embodiment, the user can manually pull the connector 3 to the position of the grinding mechanism 1, and then use the drive mechanism to move the connector 3 from the grinding mechanism 1 to the position of the brewing mechanism 2.

[0037] Users only need to connect the powder dispenser 4 and connector 3 once during the entire coffee-making process, simplifying the operation. At the same time, eliminating the need for multiple additional connectors to mate with the powder dispenser 4 allows for a reduction in the size of the coffee machine and the space it occupies.

[0038] Preferably, the powder receiver 4 is detachably connected to the connector 3, and the powder receiver 4 is provided with a handle portion 42 extending outward toward the connector 3, so that the user can easily pick up the powder receiver 4.

[0039] Furthermore, the drive mechanism includes a fixed bracket 51 and a spring 52 for moving the connector 3 from the grinding mechanism 1 towards the brewing mechanism 2. The two ends of the spring 52 are connected to the fixed bracket 51 and the connector 3, respectively. The powder outlet 11 and the brewing water outlet 21 are distributed along the direction of the spring 52 from deformation to reset. When the connector 3 moves to the position of the grinding mechanism 1, the spring 52 deforms and stores force. When the spring 52 resets, it can pull the connector 3 to the position of the brewing mechanism 2.

[0040] Furthermore, a locking mechanism is provided on the outside of the grinding mechanism 1. When the connector 3 moves to connect the powder outlet 11 with the brewing chamber 43 of the powder receiver 4, the spring 52 deforms and the connector 3 is connected to the locking mechanism. When the connector 3 is separated from the locking mechanism, the spring 52 resets and pulls the connector 3 to connect the brewing water outlet 21 with the brewing chamber 43 of the powder receiver 4. The locking mechanism can keep the connector 3 stable when it moves to connect with the grinding mechanism 1, without the need to manually fix the position of the connector 3, further simplifying the user's operation and improving the stability of the powder receiver 4 in receiving coffee powder.

[0041] Furthermore, the locking mechanism includes a solenoid valve 61 and a valve stem 62. The connector 3 is provided with a limiting part 31 corresponding to the valve stem 62. When the solenoid valve 61 controls the valve stem 62 to extend so that the limiting part 31 abuts against the valve stem 62 on the side facing the return direction of the spring member 52, the spring member 52 deforms and the powder outlet 11 remains connected to the brewing chamber 43 of the powder receiver 4. When the solenoid valve 61 controls the valve stem 62 to retract so that the limiting part 31 separates from the valve stem 62, the spring member 52 resets and pulls the connector 3 to move towards the brewing water outlet 21 so that the brewing water outlet 21 remains connected to the brewing chamber 43. By controlling the position of the valve stem 62 through the solenoid valve 61, the position of the connector 3 can be controlled by electrical control, thereby improving the control accuracy of the equipment.

[0042] Furthermore, the valve stem 62 and / or the limiting part 31 are provided with a guide slope 621. The guide slope 621 is inclined towards the solenoid valve 61 in the direction of the spring member 52's reset. When the side of the limiting part 31 opposite to the direction of the spring member 52's reset abuts against the valve stem 62, the limiting part 31 and the valve stem 62 slide together through the guide slope 621, and the limiting part 31 pushes the valve stem 62 to be retracted. When the limiting part 31 moves in the direction of the spring member 52's deformation to be misaligned with the valve stem 62, the valve stem 62 resets and extends, and the side of the limiting part 31 facing the direction of the spring member 52's reset abuts against the valve stem 62. The guide slope 621 can improve the smoothness of the connection process between the valve stem 62 and the limiting part 31, making the process of the user pulling the connector 3 to the position of the grinding mechanism 1 feel better.

[0043] Furthermore, the outer side of the connector 3 is provided with two spring connecting ears 32 arranged symmetrically in the radial direction. Each spring connecting ear 32 is connected to a corresponding spring member 52, so that the overall force of the connector 3 is more even and the connector 3 is more stable during movement.

[0044] Furthermore, the fixed bracket 51 is provided with a limiting side plate 511, which is concentrically arranged with the connector 3. The inner side of the limiting side plate 511 is adjacent to and limited to the outer side of the connector 3. The limiting side plate 511 can further improve the stability of the connector 3 during the movement process and reduce the chance of the connector 3 being accidentally displaced.

[0045] Furthermore, the limiting side plate 511 has a hollow opening 512 at the position corresponding to the powder dispensing part 11. The powder dispensing part 11 is connected to the brewing chamber 43 through the hollow opening 512. The limiting side plate 511 can extend to a position adjacent to the grinding mechanism 1, thereby further improving the stability of the connector 3 during the movement process. By setting the hollow opening 512, the limiting side plate 511 will not affect the normal delivery of coffee powder from the powder dispensing part 11 to the powder receiver 4 when it approaches the grinding mechanism 1.

[0046] Furthermore, the grinding mechanism 1 and the brewing mechanism 2 are arranged adjacent to each other in the horizontal direction, and the brewing water outlet 21 and the powder outlet 11 are distributed from top to bottom, making the overall layout of the grinding mechanism 1 and the brewing mechanism 2 more compact, which is conducive to further reducing the space occupied by the grinding and brewing assembly.

[0047] The brewing water outlet 21 is located vertically above the coffee powder receiver 4, and the coffee powder outlet 11 is located on the outside of the coffee powder receiver 4. The coffee powder outlet 11 is inclined downward along the direction from the grinding mechanism 1 to the connector 3, so that the coffee powder can be more easily expelled from the coffee powder outlet 11 and flow outward under the action of gravity.

[0048] The upper side of the coffee powder receiver 4 is provided with a feed inlet 41, through which coffee powder and hot water enter the brewing chamber 43 inside the coffee powder receiver 4.

[0049] The brewing water outlet section 21 and the powder outlet section 11 are respectively connected to the brewing chamber 43 through the feed inlet 41. When the connector 3 moves upward until it comes into contact with the brewing water outlet section 21, the hot water generated by the brewing water outlet section 21 can directly enter the brewing chamber 43 from the feed inlet 41. Moreover, there is no need to set additional components on the brewing water outlet section 21 for fixing the connector 3, which further simplifies the structure of the bean grinding and brewing assembly.

[0050] The side wall of the connector 3 is provided with a powder inlet hole 33 for communicating with the connector 3. The powder inlet hole 33 is inclined downward along the direction from the grinding mechanism 1 to the connector 3. The coffee powder discharged from the powder outlet 11 can flow to the feed inlet 41 through the powder inlet hole 33. Since the powder inlet hole 33 is inclined downward, the coffee powder can flow to the feed inlet 41 more easily. Moreover, the liquid in the powder receiver 4 is less likely to overflow outward through the powder inlet hole 33.

[0051] Furthermore, the brewing water outlet 21 is located on the lower side of the brewing mechanism 2. The brewing mechanism 2 is connected to a water inlet pipe 22. A water distribution net 23 is provided between the water outlet end of the water inlet pipe 22 and the brewing water outlet 21. The water distribution net 23 has several water outlet holes 231 on the powder part. The water distribution net 23 can play a certain blocking effect on the coffee powder, reducing the chance of the coffee powder coming into contact with the water outlet end of the water inlet pipe 22. At the same time, the water distribution net 23 can also make the hot water flow more evenly to the feed port 41, which not only improves the brewing effect, but also further reduces the chance of the coffee powder in the powder receiver 4 splashing up due to the impact of the water flow.

[0052] The working process of this utility model is as follows:

[0053] like Figure 3 , Figure 4 , Figure 5 As shown, the user first fixes the powder receiver 4 onto the connector 3, and then manually pulls the connector 3 downward until the valve stem 62 and the limiting part 31 cooperate to form a fixed position of the connector 3.

[0054] The grinding mechanism 1 starts working to produce coffee powder, which enters the brewing chamber 43 of the powder collector 4 through the powder outlet 11.

[0055] After receiving the coffee powder, the user can manually control the control buttons on the coffee machine or control the solenoid valve 61 through the preset electronic control program, so that the valve stem 62 is retracted inward. After the connector 3 is released from the limit of the valve stem 62, it moves upward under the action of the spring member 52 until the connector 3 abuts against the brewing water outlet 21.

[0056] like Figure 1 , Figure 2 As shown, the brewing mechanism 2 starts working to generate hot water, which enters the brewing chamber 43 of the coffee powder dispenser 4 through the brewing outlet 21 to brew the coffee.

[0057] The above embodiments are merely preferred embodiments of this utility model, and other implementations are also possible. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model, and all such equivalent modifications or substitutions are included within the scope set forth in the claims of this application.

Claims

1. A coffee machine's integrated grinding and brewing assembly, characterized in that, include: A coffee grinding mechanism (1) has a powder outlet (11). Brewing mechanism (2), said brewing mechanism (2) has a brewing water outlet (21); The connector (3) is provided with a powder receiver (4) and the powder receiver (4) has a brewing chamber (43). Wherein: the connector (3) can drive the powder receiver (4) to connect and cooperate with the grinding mechanism (1) or the brewing mechanism (2) so that the brewing chamber (43) is connected to the powder outlet (11) or the brewing water outlet (21). The connector (3) is connected to a driving mechanism, which can drive the connector (3) to move from the grinding mechanism (1) toward the brewing mechanism (2); or the driving mechanism can drive the connector (3) to move from the brewing mechanism (2) toward the grinding mechanism (1).

2. The grinding and brewing assembly for coffee machines according to claim 1, characterized in that: The driving mechanism includes a fixed bracket (51) and a spring (52) for driving the connector (3) to move from the grinding mechanism (1) toward the brewing mechanism (2). The two ends of the spring (52) are connected and cooperated with the fixed bracket (51) and the connector (3) respectively. The powder outlet (11) and the brewing water outlet (21) are distributed along the direction of the spring (52) from deformation to reset.

3. The grinding and brewing assembly for coffee machines according to claim 2, characterized in that: The grinding mechanism (1) is provided with a locking mechanism on the outside. When the connector (3) moves to make the powder outlet (11) connect with the brewing chamber (43) of the powder receiver (4), the spring (52) deforms and the connector (3) connects with the locking mechanism. When the connector (3) separates from the locking mechanism, the spring (52) resets and pulls the connector (3) to make the brewing water outlet (21) connect with the brewing chamber (43) of the powder receiver (4).

4. The grinding and brewing assembly for coffee machines according to claim 3, characterized in that: The locking mechanism includes a solenoid valve (61) and a valve stem (62). The connector (3) is provided with a limiting part (31) corresponding to the valve stem (62). When the solenoid valve (61) controls the valve stem (62) to extend so that the limiting part (31) abuts against the valve stem (62) on the side of the spring member (52) in the reset direction, the spring member (52) deforms and the powder outlet (11) remains connected to the brewing chamber (43) of the powder receiver (4). When the solenoid valve (61) controls the valve stem (62) to retract so that the limiting part (31) separates from the valve stem (62), the spring member (52) resets and pulls the connector (3) to move towards the brewing water outlet (21) so that the brewing water outlet (21) remains connected to the brewing chamber (43).

5. The grinding and brewing assembly for coffee machines according to claim 4, characterized in that: The valve stem (62) and / or the limiting part (31) are provided with a guide slope (621). The guide slope (621) is inclined towards the solenoid valve (61) in the direction of the spring (52) reset. When the side of the limiting part (31) opposite to the reset direction of the spring (52) abuts against the valve stem (62), the limiting part (31) and the valve stem (62) slide together through the guide slope (621), and the limiting part (31) pushes the valve stem (62) to be retracted. When the limiting part (31) moves in the direction of the deformation of the spring (52) to be misaligned with the valve stem (62), the valve stem (62) resets and extends, and the side of the limiting part (31) facing the reset direction of the spring (52) abuts against the valve stem (62).

6. The grinding and brewing integrated assembly for coffee machines according to claim 3, characterized in that: The outer side of the connector (3) is provided with two spring connecting ears (32) arranged symmetrically in the radial direction, and each spring connecting ear (32) is connected to a corresponding spring (52).

7. The integrated grinder-brewer assembly for a coffee maker according to claim 3, wherein: The fixed bracket (51) is provided with a limiting side plate (511). The limiting side plate (511) is concentrically arranged with the connector (3). The inner side of the limiting side plate (511) is adjacent to and limited to the outer side of the connector (3).

8. The grinding and brewing assembly for coffee machines according to claim 7, characterized in that: The limiting side plate (511) has a hollow opening (512) at the position corresponding to the powder dispensing part (11), and the powder dispensing part (11) is connected to the brewing chamber (43) through the hollow opening (512).

9. The grinding and brewing assembly for coffee machines according to any of the preceding claims, characterized in that: The grinding mechanism (1) and brewing mechanism (2) are arranged adjacent to each other in the horizontal direction. The brewing water outlet (21) and powder outlet (11) are distributed from top to bottom. The brewing water outlet (21) is located vertically above the powder receiver (4). The powder outlet (11) is located on the outside of the powder receiver (4). The powder outlet (11) is inclined downward along the direction from the grinding mechanism (1) to the connector (3). The upper side of the powder receiver (4) is provided with a feed inlet (41). The brewing water outlet (21) and the powder outlet (11) are respectively connected to the brewing chamber (43) through the feed inlet (41). The side wall of the connector (3) is provided with a powder inlet hole (33) for communicating with the connector (3). The powder inlet hole (33) is inclined downward along the direction from the grinding mechanism (1) to the connector (3).

10. The grinding and brewing assembly for coffee machines according to claim 9, characterized in that: The brewing water outlet (21) is located on the lower side of the brewing mechanism (2). The brewing mechanism (2) is connected to a water inlet pipe (22). A water distribution net (23) is provided between the water outlet end of the water inlet pipe (22) and the brewing water outlet (21). The water distribution net (23) has several water outlet holes (231) on its powder part.

Citation Information

Patent Citations

  • Bean grinding coffee machine

    CN214208078U