Rotatable powder feeding assembly and coffee machine

Abstract

The utility model relates to the technical field of electrical equipment for making coffee, and provides a rotatable powder discharging assembly and a coffee maker, the powder discharging assembly comprises a driving device, a transmission device and a powder discharging channel, the driving device drives the powder discharging channel to rotate through the transmission device, the powder discharging channel is obliquely arranged relative to the rotating axis, and the powder discharging channel is arranged in the transmission device. In the rotating process of the powder discharging channel, an outlet of the powder discharging channel is located in the powder supply position or the powder supply avoiding position. The position matching with the brewing unit can be completed in the powder receiving step of the brewing unit only by rotating the powder discharging channel, and the structure does not interfere with the brewing unit after powder receiving is completed, so that the occupied space in the coffee machine is reduced, and the influence that the size of the coffee machine is increased due to the structural design of the coffee powder adding step is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment for brewing coffee, and in particular to a rotatable powder feeding component and a coffee machine. Background Art

[0002] A fully automatic coffee machine is an electrical appliance that can at least realize the entire process of brewing coffee, including pressing powder, brewing, and removing residues. During use, the brewing unit of the coffee machine moves to the coffee powder adding position to add coffee powder into the brewing chamber of the brewing unit, and then moves to the extraction position to complete coffee extraction. After coffee extraction is completed, the coffee powder cake is pushed out of the brewing unit and the powder cake is swept away, and finally returns to the initial position.

[0003] However, since brewing coffee requires multiple steps to be performed in sequence, when adding coffee powder, it is generally necessary to rotate the brewing unit so that the positions of the brewing unit and the powder supply device can match when adding coffee powder, and at the same time, the two do not interfere with each other in structure after the coffee powder is added. Therefore, a rotating device that can rotate the brewing unit as a whole needs to be configured in the coffee machine. The rotating device increases the occupancy rate of the space inside the coffee machine and increases the volume design of the coffee machine. Utility Model Content

[0004] The present application provides a rotatable powder feeding component and a coffee machine, wherein the powder feeding component can reduce the effect of the increase in volume of the coffee machine due to the structural design of the coffee powder adding step.

[0005] In the first aspect, the present application provides a rotatable powder lowering assembly adopting the following technical solution:

[0006] A rotatable powder lowering component comprises: a driving device, a transmission device and a powder lowering channel, wherein the driving device drives the powder lowering channel to rotate through the transmission device, and the powder lowering channel is arranged to be inclined relative to the axis of rotation. During the rotation of the powder lowering channel, the outlet of the powder lowering channel is located at a powder supply position or a powder supply avoidance position.

[0007] In a preferred embodiment, the transmission device includes a driving gear and a channel gear, the driving gear is transmitted to the channel gear, a material passing through hole is provided in the middle of the channel gear, and the powder lower channel is fixedly connected to the channel gear and communicated with the material passing through hole.

[0008] In a preferred embodiment, the transmission device also includes a gear box and a switch gear, the switch gear is transmitted to the driving gear, the driving gear, the channel gear and the switch gear are all arranged in the gear box, the gear box is provided with a feed port connected to the feed through hole and a feed baffle cooperated with the feed port, and the switch gear is used to drive the feed baffle to close or open the feed port.

[0009] In a preferred embodiment, the unloading baffle is provided with an elongated driving hole, the switch gear is provided with a fixing hole, the transmission device also includes a movable shaft, the movable shaft passes through the driving hole and is fixedly connected to the fixing hole, the upper surface of the gear box is provided with a baffle groove, and the unloading baffle is slidably connected to the gear box through the baffle groove to close or open the unloading port.

[0010] In a preferred embodiment, a limit plate is fixedly disposed above the movable shaft.

[0011] In a preferred embodiment, the driving device includes a sleeve connected to the driving gear and a driving motor connected to the sleeve. The sleeve is fixedly mounted on the output shaft of the driving motor. Micro switches are arranged on both sides of the sleeve. The sleeve is fixedly provided with a trigger protrusion that cooperates with the micro switch. The two micro switches correspond to the open state and the closed state of the feeding port respectively.

[0012] In a preferred embodiment, the powder lower channel is detachably fixedly connected to the channel gear.

[0013] In a preferred embodiment, the powder lowering assembly further includes a bean grinding device, the gear box is provided with a feed inlet, and the bean grinding device is provided with a powder outlet communicated with the feed inlet.

[0014] In a second aspect, the present application further provides a coffee machine, wherein the coffee machine is equipped with the powder lowering assembly described above.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. Since the powder lowering channel is tilted relative to the axis of rotation, when the powder lowering channel rotates, the outlet position at the bottom of the powder lowering channel changes, thereby being located on the moving path of the brewing unit or making way for the movement of the brewing unit. Compared with the prior art, the present application solution can complete the position matching with the brewing unit in the powder receiving step of the brewing unit by simply rotating the powder lowering channel, and after the powder receiving is completed, the structure does not interfere with the brewing unit, thereby reducing the space occupied in the coffee machine and reducing the impact of the increase in the volume of the coffee machine due to the structural design of the coffee powder adding step.

[0017] 2. The setting of the material discharge baffle and the switch gear enables the material discharge port to be opened or closed while the powder discharge channel rotates. This not only prevents the coffee powder in the bean grinding device from continuing to fall into the powder discharge channel after the powder is received, causing a large amount of coffee powder to be retained in the powder discharge channel, but also because of the cooperation between the switch gear and the driving gear, the powder discharge channel and the material discharge baffle are driven simultaneously by the same driving gear.

[0018] 3. The channel gear is provided with a material passing through hole and is detachably connected to the powder lowering channel, which not only realizes the rotation drive of the powder lowering channel, but also provides the connection between the powder lowering channel and the gear box feed port. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the powder lowering assembly described in the embodiment of the present application.

[0020] Figure 2 It is a schematic diagram of the structure of the transmission device described in the embodiment of the present application.

[0021] Figure 3 It is a schematic diagram of the structure of the driving device described in the embodiment of the present application.

[0022] Explanation of the reference numerals: 1. brewing unit; 2. driving device; 21. driving motor; 22. bushing; 221. triggering protrusion; 23. micro switch; 3. transmission device; 31. driving gear; 32. switch gear; 321. fixing hole; 322. baffle driving boss; 33. channel gear; 331. inner retaining ring; 34. gear box; 341. box body; 3411. baffle driving through hole; 3412. material discharge port; 3413. baffle slide; 342. upper cover; 3421. material feed port; 343. lower cover; 3431. avoidance hole; 35. material discharge baffle; 351. driving hole; 36. movable shaft; 4. powder discharge channel; 41. outer retaining ring; 5. bean grinding device. DETAILED DESCRIPTION

[0023] The following is combined with the accompanying drawings of the specification Figure 1-Figure 3 This application is described in further detail.

[0024] Reference Figure 1 , an embodiment of the present application discloses a rotatable powder lowering component, which is used in a coffee machine to add coffee powder to a brewing unit 1 in the coffee machine. In the embodiment of the present application, the brewing unit 1 moves linearly in a working chamber driven by a driving unit in the coffee machine. During the use of the coffee machine, the brewing unit 1 is first moved to a powder receiving position, and coffee powder is added to the brewing unit 1 through the powder lowering component. After the powder is received, the brewing unit 1 continues to move linearly. This process requires the powder lowering component to move and give way to the brewing unit 1. It should be noted that this is not the only limitation on the movement mode of the brewing unit 1. It is only required that the brewing unit 1 is configured in the coffee machine. The linear movement of the brewing unit 1 is only an exemplary description of the embodiment of the present application.

[0025] Reference Figure 1 and Figure 2The powder lowering assembly includes a driving device 2, a transmission device 3, a powder lowering channel 4 and a bean grinding device 5. The bean grinding device 5 is used to grind coffee beans into coffee powder, and the coffee powder enters the brewing unit 1 through the powder lowering channel 4. The driving device 2 drives the powder lowering channel 4 to rotate through the transmission device 3, so that the outlet of the powder lowering channel 4 is located at a powder supply position or a powder avoidance position, and the powder supply position is: the outlet is located above the brewing chamber of the brewing unit 1, so that the coffee powder can fall into the brewing chamber of the brewing unit 1 after flowing out of the outlet.

[0026] The transmission device 3 includes a gear box 34 and a driving gear 31, a switch gear 32 and a channel gear 33 located in the gear box 34. The gear box 34 includes a box body 341, a lower cover 343 located at the bottom of the box body 341 and an upper cover 342 located above the box body 341. The driving gear 31, the switch gear 32 and the channel gear 33 are all located in the installation space formed by the box body 341 and the lower cover 343, and the driving gear 31, the switch gear 32 and the channel gear 33 are meshed in sequence.

[0027] It should be noted that the connection relationship between the driving gear 31, the switch gear 32 and the channel gear 33 is not limited in the present application, and it is only required that the driving gear 31, the switch gear 32 and the channel gear 33 are gear-driven with each other. For example, in one embodiment, the driving gear 31 is meshed with the switch gear 32 and the channel gear 33 at the same time, and in another embodiment, a transmission gear is provided between the driving gear 31, the switch gear 32 and the channel gear.

[0028] The channel gear 33 is annular as a whole, and the meshing teeth of the channel gear 33 are located on the outer ring, and the inner ring of the channel gear 33 forms a material passing hole. The top of the powder lowering channel 4 is detachably connected to the channel gear 33. When the driving gear 31 rotates, it can drive the channel gear 33 to rotate, and then drive the powder lowering channel 4 to rotate. There is a certain angle between the length direction of the powder lowering channel 4 and the axis of rotation of the channel gear 33, so that the powder lowering channel 4 is tilted relative to the axis of rotation. When the powder lowering channel 4 rotates, the outlet at the bottom of the powder lowering channel 4 rotates along an arc trajectory.

[0029] Among them, the present application does not make a sole limitation on the detachable connection method between the powder lowering channel 4 and the channel gear 33. In a preferred example, an inner retaining ring 331 is extended from the bottom of the channel gear 33, and an outer retaining ring 41 that engages with the inner retaining ring 331 is provided on the top of the powder lowering channel 4. The inner diameter of the outer retaining ring 41 is adapted to the outer diameter of the inner retaining ring 331, and the powder lowering channel 4 is connected to the outer retaining ring 41 through the inner retaining ring.

[0030] Furthermore, the housing 341 of the gear box 34 is provided with a feed opening 3412 matched with the feed through hole, the lower cover 343 of the gear box 34 is provided with an avoidance hole 3431 matched with the inner snap ring 331, and the inner snap ring 331 of the channel gear 33 passes through the avoidance hole 3431 and is connected to the powder discharge channel 4. When the coffee machine receives the coffee powder, the coffee powder passes through the feed opening 3412, the feed through hole, the inner snap ring 331, the outer snap ring 41 and the powder discharge channel 4 in sequence and enters the brewing unit 1.

[0031] Furthermore, the housing 341 of the gear box 34 is also provided with a material removal baffle 35 and a baffle groove 3413 cooperating with the material removal baffle 35. The material removal baffle 35 is slidably connected to the housing 341 through the baffle groove 3413, and the material removal port 3412 is blocked or opened during the sliding process of the material removal baffle 35.

[0032] In one embodiment, the material removal baffle 35 includes an integrally arranged driving portion and a sliding portion, the sliding portion is rectangular in shape as a whole, and is slidably connected to the baffle slide slot 3413. The driving portion is provided with a long strip driving hole 351, the length direction of the driving hole 351 is perpendicular to the sliding direction of the material removal baffle 35, the switch gear 32 is provided with a fixing hole 321, the box body 341 is provided with a baffle driving through hole 3411, and the transmission device 3 also includes a movable shaft 36, the movable shaft 36 passes through the driving hole 351 and the baffle driving through hole 3411 and is fixedly connected to the fixing hole 321. Among them, the inner diameter of the baffle driving through hole 3411 is adapted to the circumferential trajectory of the movable shaft 36 rotating under the drive of the switch gear 32.

[0033] In another embodiment, the switch gear 32 is protrudingly provided with a baffle driving boss 322 that cooperates with the baffle driving through hole 3411, the baffle driving boss 322 is penetrated by the baffle driving through hole 3411, and the movable shaft 36 passes through the driving hole 351 and is fixedly connected to the baffle driving boss 322.

[0034] Furthermore, a limit plate is fixedly arranged above the movable shaft 36, and the outer diameter of the limit plate is greater than the width of the driving hole 351. In a preferred example, the movable shaft 36 and the limit plate are combined into a bolt, the movable shaft 36 is the screw of the bolt, and the limit plate is the nut of the bolt.

[0035] When the switch gear 32 rotates, the material discharge blocking piece 35 can be driven to slide relative to the blocking piece sliding groove 3413 through the movable shaft 36, and then the material discharge port 3412 is blocked or opened through the sliding part of the blocking piece sliding groove 3413.

[0036] The upper cover 342 is located above the baffle driving through hole 3411, the baffle sliding groove 3413 and the material discharge port 3412. The upper cover 342 is provided with a feed port 3421 connected to the material discharge port 3412, and the bean grinding device 5 is provided with a powder outlet (not shown in the figure) connected to the feed port 3421. The coffee beans are ground into coffee powder by the bean grinding device 5, and the coffee powder enters the feed port 3421 through the powder outlet, and then enters the powder discharge channel 4 through the feed port 3421 and the material discharge port 3412.

[0037] Reference Figures 1 to 3 The driving device 2 further includes a sleeve 22 connected to the driving gear 31 and a driving motor 21 connected to the sleeve 22. The sleeve 22 is fixedly sleeved on the output shaft of the driving motor 21. The sleeve 22 passes through the box 341 and is fixedly connected to the driving gear 31. Micro switches 23 are arranged on both sides of the sleeve 22. The sleeve 22 is fixedly provided with a trigger protrusion 221 that cooperates with the micro switch 23. The two micro switches 23 correspond to the open state and the closed state of the feeding port 3412, respectively.

[0038] In the initial state, the trigger protrusion 221 triggers a micro switch 23, the feed port 3412 is in an open state, the outlet of the powder discharge channel 4 is located above the brewing unit 1, and the coffee powder passes through the feed port 3412 into the powder discharge channel 4, and then enters the brewing unit 1. When the feed port 3412 needs to be closed, the drive motor 21 works, driving the sleeve 22 and the driving gear 31 to rotate synchronously, until the trigger protrusion 221 of the sleeve 22 triggers another micro switch 23, the feed port 3412 is blocked by the feed baffle 35, and the powder discharge channel 4 avoids the powder supply position, so that the brewing unit 1 continues to perform the next step of coffee brewing.

[0039] In addition, the present application also discloses a coffee machine, in which the rotatable powder lowering component is arranged.

[0040] The working principle of the embodiment of the present application is as follows: since the powder lowering channel 4 is tilted relative to the axis of rotation, when the powder lowering channel 4 rotates, the outlet position at the bottom of the powder lowering channel 4 changes, thereby being located on the moving path of the brewing unit 1 or making way for the movement of the brewing unit 1. Compared with the prior art, the present application solution can complete the position matching with the brewing unit 1 in the powder receiving step of the brewing unit 1 only by rotating the powder lowering channel 4, and after the powder receiving is completed, the structure does not interfere with the brewing unit 1, thereby reducing the space occupied in the coffee machine and reducing the impact of the increase in the volume of the coffee machine due to the structural design of the coffee powder adding step.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rotatable powder discharging assembly, characterized in that: include: A driving device (2), a transmission device (3) and a powder lowering channel (4), wherein the driving device (2) drives the powder lowering channel (4) to rotate via the transmission device (3), the powder lowering channel (4) being arranged obliquely relative to the axis of rotation, and the powder lowering channel (4) being located on a moving path of a brewing unit (1) or making way for the brewing unit (1) during its rotation.

2. A rotatable powder discharging assembly according to claim 1, characterized in that: The transmission device (3) comprises a driving gear (31) and a channel gear (33), the driving gear (31) and the channel gear (33) are in transmission, a material passing through hole is provided in the middle of the channel gear (33), and the powder lowering channel (4) is fixedly connected to the channel gear (33) and communicated with the material passing through hole.

3. A rotatable powder discharging assembly according to claim 2, characterized in that: The transmission device (3) further comprises a gear box (34) and a switch gear (32); the switch gear (32) is in transmission with the driving gear (31); the driving gear (31), the channel gear (33) and the switch gear (32) are all arranged in the gear box (34); the gear box (34) is provided with a material discharge port (3412) connected to the material passing through hole and a material discharge baffle (35) matched with the material discharge port (3412); the switch gear (32) is used to drive the material discharge baffle (35) to close or open the material discharge port (3412).

4. A rotatable powder discharging assembly according to claim 3, characterized in that: The material discharge baffle (35) is provided with an elongated driving hole (351), the switch gear (32) is provided with a fixing hole (321), the transmission device (3) further comprises a movable shaft (36), the movable shaft (36) passes through the driving hole (351) and is fixedly connected to the fixing hole (321), the upper surface of the gear box (34) is provided with a baffle slide groove (3413), and the material discharge baffle (35) is slidably connected to the gear box (34) through the baffle slide groove (3413) to close or open the material discharge port (3412).

5. A rotatable powder discharging assembly according to claim 4, characterized in that: A limit plate is fixedly arranged above the movable shaft (36).

6. A rotatable powder discharging assembly according to claim 4, characterized in that: The driving device (2) comprises a shaft sleeve (22) connected to a driving gear (31) and a driving motor (21) connected to the shaft sleeve (22); the shaft sleeve (22) is fixedly sleeved on an output shaft of the driving motor (21); micro switches (23) are arranged on both sides of the shaft sleeve (22); a trigger protrusion (221) cooperating with the micro switch (23) is fixedly arranged on the shaft sleeve (22); and the two micro switches (23) correspond to the open state and the closed state of the feeding port (3412) respectively.

7. The rotatable powder discharging assembly according to claim 2, characterized in that: The powder lowering channel (4) is detachably fixedly connected to the channel gear (33).

8. The rotatable powder discharging assembly according to claim 3, characterized in that: The powder lowering component also includes a bean grinding device (5), the bean grinding device (5) is provided with a feed inlet (3421), and the bean grinding device (5) is provided with a powder outlet communicated with the feed inlet (3421).

9. A coffee machine, characterized in that: The coffee machine is equipped with the powder feeding component according to any one of claims 1-8.

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