A coffee maker and coffee maker that can be used to tamp and brew coffee powder

Abstract

This utility model discloses an integrated coffee tamp and brewing device, relating to the field of coffee machine technology. The integrated coffee tamp and brewing device includes a main frame, a power mechanism, a tamp mechanism, and a brewing mechanism mounted on the main frame. The tamp mechanism includes a tamping section. The power mechanism includes a rod connected to the tamp section and capable of axial movement, an adjusting ring cooperating with the rod and capable of rotating relative to the rod, and a drive device for rotating the adjusting ring relative to the rod to drive the rod's axial movement through the cooperation of the adjusting ring and the rod. The main frame also has a fixed pressure plate for axially positioning the adjusting ring. With this utility model's structure, when brewing coffee, the drive device, adjusting ring, and rod cooperate to drive the tamp section to tamp the coffee, and then the brewing mechanism brews the tamped coffee. Furthermore, the fixed pressure plate fixed to the main frame positions the adjusting ring, preventing axial movement and ensuring high stability.

Description

Technical Field

[0001] This utility model relates to the field of coffee machine technology, and in particular to a coffee machine with integrated tamping and brewing device. Background Technology

[0002] As people's living standards improve, more and more people are pursuing freshly ground and brewed coffee. Most coffee machines on the market have a grinder on one side. The grinder grinds the coffee beans into powder, which is then fed into the extraction portafilter. The coffee powder in the portafilter is distributed and tamped into a cake shape with a tamper. The portafilter is then rotated counterclockwise to lock into place. After placing the cup to receive the coffee liquid, the lever is raised to start brewing. Once the desired amount of coffee is reached, the lever is pulled down to stop brewing. The whole process is cumbersome and not suitable for today's fast-paced life. In addition, coffee machines have a complex structure and large size. To solve the above problems, an all-in-one coffee machine has appeared on the market. This coffee machine integrates grinding, tamping, and brewing into one unit, achieving simple and convenient coffee making. However, the tamping transmission stability of this all-in-one coffee machine is insufficient, the output power is unstable during coffee making, and the lever is prone to shaking. Utility Model Content

[0003] This invention addresses the problems of unstable power output and easy wobbling of the lever in coffee making by providing an integrated tamping and brewing device and coffee machine.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A powder pressing and brewing integrated device includes a main fixed frame, a power mechanism, a powder pressing mechanism, and a brewing mechanism mounted on the main fixed frame. The powder pressing mechanism includes a powder pressing section with a water outlet. The brewing mechanism includes a water outlet channel located within the powder pressing mechanism and connected to the water outlet. The power mechanism includes a rod connected to the powder pressing section and capable of axial movement, an adjusting ring that cooperates with the rod and can rotate relative to the rod, and a driving device for rotating the adjusting ring relative to the rod to drive the rod to move axially through the cooperation between the adjusting ring and the rod. The main fixed frame is also provided with a fixing plate for axially positioning the adjusting ring.

[0005] As described above, in the integrated powder pressing and brewing device, the driving device is located on one side of the rod body. The driving device includes a motor and a gear. The outer side of the adjusting ring is provided with adjusting ring teeth that mesh with the gear. The motor is located above the main fixing frame, and the gear is located below the motor and is connected to the motor for transmission and is located on the same plane as the adjusting ring teeth.

[0006] In the powder pressing and brewing integrated device described above, the driving device is coaxially arranged with the rod body to drive the adjusting ring to rotate.

[0007] As described above, in the integrated powder pressing and brewing device, the outer side of the rod body is provided with an external thread, and the inner side of the adjusting ring is provided with an internal thread that mates with the external thread.

[0008] As described above, in the integrated powder pressing and brewing device, the water outlet channel includes an inlet chamber, an outlet chamber, and a connecting port connecting the inlet chamber and the outlet chamber. The outlet chamber is connected to the outlet part. An elastic sealing component capable of sealing or opening the connecting port is provided in the outlet chamber. The brewing mechanism includes a water outlet connector, which is connected to the powder pressing part. The inlet chamber, outlet chamber, and connecting port are located at the water outlet connector.

[0009] As described above, in the integrated powder-pressing and brewing device, the elastic sealing component includes the water outlet plug and a first spring, wherein the first spring is used to elastically press the water outlet plug toward the direction of the communication port.

[0010] As described above, the powder pressing and brewing integrated device includes a powder pressing head and a powder pressing filter screen located outside the powder pressing head. The water outlet includes a plurality of water outlet holes disposed on the powder pressing head and distributed circumferentially. The water outlet holes are connected to the water outlet channel and the powder pressing filter screen.

[0011] The powder pressing and brewing integrated device described above further includes a water pipe fixing frame fixedly connected to the main fixing frame. The powder pressing mechanism can move axially relative to the main fixing frame and the water pipe fixing frame. The water outlet channel includes a water outlet pipe disposed on the water pipe fixing frame and located in the rod body. The water outlet pipe is aligned and connected to the water outlet connector. The rod body is provided with a guide channel for the water outlet pipe to pass through. The outer wall of the water outlet pipe is provided with a second spring and a fixing spring pin. The second spring is located inside the fixing spring pin. The fixing spring pin is used to limit the radial swing of the rod body in the guide channel.

[0012] The powder pressing and brewing integrated device described above also includes a switch assembly located on one side of the powder pressing mechanism. The switch assembly includes a switch pressure plate disposed on the rod body and includes a plurality of switch elements distributed along the axial direction and capable of correspondingly cooperating with the switch pressure plate.

[0013] This utility model also provides a coffee machine, including the integrated device for tamping and brewing coffee as described above.

[0014] Compared with existing technologies, the beneficial effects of this technical solution are as follows: With the structure of this utility model, when brewing coffee, the drive device drives the adjusting ring to rotate circumferentially. The adjusting ring cooperates with the rod to convert the horizontal rotation of the adjusting ring into the axial movement of the rod. The axial movement of the rod drives the tamping part to tamp the coffee powder. Then, the brewing mechanism provides high-pressure hot water to brew the tamped coffee powder. In addition, the fixed pressure plate fixed on the main fixed frame can position the adjusting ring and prevent it from moving axially. The structure is simple and has high stability.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an exploded view of the present invention; Figure 2 This is a three-dimensional structural view of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a three-dimensional view of the power mechanism structure of this utility model; Figure 5 This is a three-dimensional structural view of the switch assembly of this utility model; Figure 6 This is a cross-sectional view of the water outlet connector of this utility model; Figure 7 This is a three-dimensional structural view of the powder pressing part of this utility model; Figure 8 This is a three-dimensional structural view of the rod body of this utility model; Figure 9 This is a three-dimensional view of the structure of the adjustment ring of this utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] When ordinal numbers such as "first" and "second" are mentioned in the embodiments of this application, unless they actually express the meaning of order according to the context, they should be understood as being used only for differentiation.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] Example: Figures 1 to 9 The illustrated tamping and brewing device is used for installation on a coffee machine. The device includes a main frame 1, a power mechanism 2, a tamping mechanism 3, and a brewing mechanism 4 mounted on the main frame 1. The tamping mechanism 3 includes a tamping section 31 with a water outlet 311. The brewing mechanism 4 includes a water outlet channel 41 located within the tamping mechanism 3 and connected to the water outlet 311. The power mechanism 2 includes a rod 21 connected to the tamping section 31 and capable of axial movement, an adjusting ring 22 cooperating with the rod 21 and capable of rotating relative to the rod 21, and a drive device 23 for rotating the adjusting ring 22 relative to the rod 21 to drive the rod 21 axially through the cooperation of the adjusting ring 22 and the rod 21. The main frame 1 also has a fixing plate 11 for axially positioning the adjusting ring 22. With the structure of this utility model, when brewing coffee, the driving device 23 drives the adjusting ring 22 to rotate circumferentially. The adjusting ring 22 cooperates with the rod 21 to convert the horizontal rotation of the adjusting ring 22 into the axial movement of the rod 21. The axial movement of the rod 21 drives the tamping part 31 to perform the tamping operation. Then, the brewing mechanism 4 provides high-pressure hot water to brew the tamped coffee cake. In addition, the fixed pressure plate 11 fixed on the main fixed frame 1 can position the adjusting ring 22 and prevent it from moving axially. The structure is simple and has high stability.

[0022] Furthermore, the driving device 23 is located on one side of the rod 21. The driving device 23 includes a motor 231 and a gear 232. The outer side of the adjusting ring 22 has adjusting ring teeth 222 that mesh with the gear 232. The motor 231 is located above the main fixing frame 1, and the gear 232 is located below the motor 231 and is connected to the motor 231 for transmission, and is located on the same plane as the adjusting ring teeth 222. The gear 232 can also be replaced by a belt, or it can be designed as a chain. The structure is simple and the transmission is convenient.

[0023] In addition, the drive device 23 can also be coaxially arranged with the rod 21 to drive the adjustment ring 22 to rotate.

[0024] Furthermore, the outer side of the rod 21 is provided with an external thread 211 that engages with the internal thread 221, and the inner side of the adjusting ring 22 is provided with an internal thread 221 that engages with the external thread 211. The structure is simple and the transmission is convenient.

[0025] Furthermore, the water outlet channel 41 includes an inlet chamber 411, an outlet chamber 412, and a connecting port 413 connecting the inlet chamber 411 and the outlet chamber 412. The outlet chamber 412 is connected to the water outlet part 311. The outlet chamber 412 is provided with an elastic sealing component 42 that can block or open the connecting port 413. The brewing mechanism 4 includes a water outlet connector 43, which is connected to the powder pressing part 31. The inlet chamber 411, the outlet chamber 412, and the connecting port 413 are located at the water outlet connector 43. The elastic sealing component 42 is located inside the water outlet chamber 412 and is in contact with the connecting port 413. When water flows through the water outlet channel 41 and reaches the connecting port 413, the elastic sealing component 42 opens the connecting port 413. When the water flow stops, the elastic sealing component 42 seals the connecting port 413 under elastic action, thus achieving water flow blocking and circulation through a simple structure. The water outlet connector 43 is used to connect the powder pressing mechanism 3 and the brewing mechanism 4, achieving communication between the mechanisms through a simple structure and ensuring the formation of a water flow path.

[0026] Furthermore, in the powder-pressing and brewing integrated device described above, the elastic sealing assembly 42 includes the water outlet plug 421 and a first spring 422. The first spring 422 elastically presses the water outlet plug 421 towards the connecting port 413. The water outlet plug 421 has a sealing position and an open position. When the water outlet plug 421 is in the open position, it opens the connecting port 413, and the first spring 422 is in a compressed state. When the water outlet plug 421 is in the sealing position, it abuts against the connecting port 413, and the first spring 422 is in a relaxed state. Water flow sealing and circulation are achieved through a simple structure.

[0027] Furthermore, the powder pressing section 31 includes a powder pressing head 312 and a powder pressing filter screen 313 located outside the powder pressing head 312. The water outlet section 311 includes a plurality of water outlet holes 314 disposed on the powder pressing head 312 and distributed circumferentially. The water outlet holes 314 are connected to the water outlet channel 41 and the powder pressing filter screen 313. The shape of the water outlet holes 314 can be circular, elliptical, polygonal, fan-shaped, or other shapes. The powder pressing filter screen 313 is detachably disposed on the powder pressing head 312. Water flows from the water outlet channel 41 through the powder pressing head 312, then through the water outlet holes 314, through the powder pressing filter screen 313, and finally out of the powder pressing mechanism 3. The structure is simple and easy to use.

[0028] Furthermore, it also includes a water pipe fixing frame 5 fixedly connected to the main fixing frame 1. The powder pressing mechanism 3 can move axially relative to the main fixing frame 1 and the water pipe fixing frame 5. The water outlet channel 41 includes a water outlet pipe 51 disposed on the water pipe fixing frame 5 and located inside the rod body 21. The water outlet pipe 51 is aligned and connected to the water outlet connector 43. The structure is simple and has high stability.

[0029] Furthermore, the rod body 21 is provided with a guide channel 212 for the water outlet pipe 51 to pass through. The outer wall of the water outlet pipe 51 is provided with a second spring 52 and a fixing pin 53. The second spring 52 is located inside the fixing pin 53, and the fixing pin 53 is used to limit the radial swing of the rod body 21 within the guide channel 212. The guide channel 212 can be configured as a cross shape, which has a simple structure and high stability.

[0030] Furthermore, it also includes a switch assembly 6 located on one side of the powder pressing mechanism 3. The switch assembly 6 includes a switch pressure plate 61 disposed on the rod 21, and a plurality of switch elements 62 distributed axially and correspondingly cooperating with the switch pressure plate 61. The plurality of switch elements 62 can be moved axially along the rod 21 by the switch pressure plate 61 disposed on the rod 21, triggering different switches and controlling different functions, thus achieving automated operation through a simple structure.

[0031] Furthermore, the tamping head 312 is provided with a sealing ring 315 for sealing. The sealing ring 315 is sleeved on the tamping head 312. When tamping coffee powder, the tamping head 312 moves axially under the action of the rod 21 to the coffee extraction handle below to compact the coffee powder. The sealing ring 315 can fit tightly against the inner wall of the coffee extraction handle to prevent coffee liquid from overflowing from the coffee extraction handle.

[0032] This utility model also provides a coffee machine, including the integrated device for tamping and brewing coffee as described above.

[0033] The working principle of this embodiment is as follows: When brewing coffee, the drive unit drives the adjusting ring to rotate circumferentially. The adjusting ring and the rod body cooperate to convert the horizontal rotation of the adjusting ring into the axial movement of the rod body. The axial movement of the rod body drives the tamping part to tamp the coffee powder. Then, the brewing mechanism provides high-pressure hot water to brew the tamped coffee powder. In addition, the fixed pressure plate fixed on the main fixed frame can position the adjusting ring and prevent it from moving axially. The structure is simple and has high stability.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for integrating powder pressing and brewing, characterized in that, The device includes a main frame (1), a power mechanism (2), a powder pressing mechanism (3), and a brewing mechanism (4) mounted on the main frame (1). The powder pressing mechanism (3) includes a powder pressing section (31) with a water outlet section (311). The brewing mechanism (4) includes a water outlet channel (41) located within the powder pressing mechanism (3) and connected to the water outlet section (311). The power mechanism (2) includes components connected to the powder pressing section (31). The main frame (1) is connected to an axially movable rod (21), an adjusting ring (22) that cooperates with the rod (21) and can rotate relative to the rod (21), and a driving device (23) for rotating the adjusting ring (22) relative to the rod (21) to drive the rod (21) to move axially through the cooperation of the adjusting ring (22) and the rod (21). The main frame (1) is also provided with a fixing plate (11) for axially positioning the adjusting ring (22).

2. The powder pressing and brewing integrated device according to claim 1, characterized in that, The driving device (23) is located on one side of the rod (21). The driving device (23) includes a motor (231) and a gear (232). The outer side of the adjusting ring (22) is provided with adjusting ring teeth (222) that mesh with the gear (232). The motor (231) is located above the main fixing frame (1). The gear (232) is located below the motor (231) and is connected to the motor (231) for transmission and is located on the same plane as the adjusting ring teeth (222).

3. The powder pressing and brewing integrated device according to claim 1, characterized in that, The driving device (23) is coaxially arranged with the rod (21) to drive the adjusting ring (22) to rotate.

4. The powder pressing and brewing integrated device according to claim 2, characterized in that, The rod (21) has an external thread (211) on its outer side, and the adjusting ring (22) has an internal thread (221) that is threaded to the external thread (211) on its inner side.

5. The powder pressing and brewing integrated device according to claim 1, characterized in that, The water outlet channel (41) includes an inlet chamber (411), an outlet chamber (412), and a connecting port (413) connecting the inlet chamber (411) and the outlet chamber (412). The outlet chamber (412) is connected to the outlet part (311). The outlet chamber (412) is provided with an elastic sealing component (42) that can block or open the connecting port (413). The brewing mechanism (4) includes an outlet connector (43). The outlet connector (43) is connected to the powder pressing part (31). The inlet chamber (411), the outlet chamber (412), and the connecting port (413) are located at the outlet connector (43).

6. The powder pressing and brewing integrated device according to claim 5, characterized in that, The elastic sealing assembly (42) includes a water outlet plug (421) and a first spring (422), the first spring (422) being used to elastically press the water outlet plug (421) toward the communication port (413).

7. The powder pressing and brewing integrated device according to claim 5, characterized in that, The powder pressing section (31) includes a powder pressing head (312) and a powder pressing filter screen (313) located outside the powder pressing head (312). The water outlet section (311) includes a plurality of water outlet holes (314) provided on the powder pressing head (312) and distributed circumferentially. The water outlet holes (314) are connected to the water outlet channel (41) and the powder pressing filter screen (313).

8. The powder pressing and brewing integrated device according to claim 5, characterized in that, It also includes a water pipe fixing frame (5) fixedly connected to the main fixing frame (1), the powder pressing mechanism (3) can move axially relative to the main fixing frame (1) and the water pipe fixing frame (5), the water outlet channel (41) includes a water outlet pipe (51) provided on the water pipe fixing frame (5) and located in the rod body (21), the water outlet pipe (51) is aligned and connected with the water outlet connector (43), the rod body (21) is provided with a guide channel (212) for the water outlet pipe (51) to pass through, the outer wall of the water outlet pipe (51) is provided with a second spring (52) and a fixing spring nail (53), the second spring (52) is located in the fixing spring nail (53), and the fixing spring nail (53) is used to limit the radial swing of the rod body (21) in the guide channel (212).

9. The powder pressing and brewing integrated device according to claim 1, characterized in that, It also includes a switch assembly (6) located on one side of the powder pressing mechanism (3). The switch assembly (6) includes a switch plate (61) disposed on the rod (21). The switch assembly (6) includes a plurality of switch elements (62) distributed along the axial direction and corresponding to the switch plate (61).

10. A coffee machine, characterized in that, Includes the powder pressing and brewing integrated device as described in any one of claims 1-9.

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