Coffee maker

Abstract

The utility model relates to a coffee machine, include: shell assembly, press cup subassembly, set up on shell assembly, press cup subassembly is equipped with has the accommodation cavity, bean grinder mechanism, set up on shell assembly, bean grinder mechanism is used for grinding material into powder, and the powder is exported to the accommodation cavity through its delivery channel, powder pressing mechanism, including drive assembly and powder pressing head, powder pressing head swing setting is in the upper of press cup subassembly, drive assembly drives powder pressing head to carry out the lift relative accommodation cavity and has starting position and powder pressing position, when being in powder pressing position, powder pressing head extends into the accommodation cavity to compact the powder in the accommodation cavity, micro -switch is configured as when powder pressing head leaves starting position, limit bean grinder mechanism output powder. The coffee machine of the application, the coffee powder made by bean grinder mechanism can be guided to press cup subassembly under the action of gravity and carry out powder pressing, and the micro -switch for controlling bean grinder mechanism is arranged, can avoid the coffee powder from delivery channel to slip to the top of powder pressing head when powder pressing.

Description

Technical Field

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

[0002] Coffee is a beverage made from roasted and ground coffee beans. To make coffee, the beans must first be ground into powder, then tamped before being poured. For some coffee machines on the market, after grinding the beans, the coffee powder needs to be manually transferred to the tamper and then tamped, which is inconvenient. Therefore, the level of automation in coffee machines still needs improvement. Utility Model Content

[0003] Therefore, it is necessary to provide a coffee machine that addresses the inconvenience of manually transferring coffee powder to the tamper after grinding the beans in some existing coffee machines.

[0004] A coffee machine includes: a housing assembly; a tamping assembly disposed on the housing assembly, the tamping assembly having a receiving cavity with a top opening; a grinding mechanism disposed on the housing assembly, the grinding mechanism having a conveying channel for grinding coffee materials into powder and outputting the powder to the receiving cavity through the conveying channel; a tamping mechanism disposed on the housing assembly, the tamping mechanism including a drive assembly and a tamping head, the tamping head being movably disposed above the tamping assembly, the drive assembly being drively connected to the tamping head to drive the tamping head to move up and down relative to the receiving cavity and having at least a starting position and a tamping position, wherein when in the starting position the tamping head is away from the tamping assembly, and when in the tamping position the tamping head extends into the receiving cavity to compact the powder in the receiving cavity; and a microswitch for controlling the grinding mechanism, the microswitch being configured to limit the output of powder by the grinding mechanism when the tamping head leaves the starting position.

[0005] This application provides a coffee machine in which, during use, the user places coffee beans into the grinding mechanism for grinding. The ground coffee powder is then guided by gravity from the conveying channel to the receiving cavity of the tamping assembly for tamping. This easily achieves automatic transfer of coffee powder, which not only improves operating efficiency but also effectively avoids powder waste and oxidation risks caused by manual transfer. In addition, a micro switch is provided to control the grinding mechanism. The micro switch can cooperate with the tamping mechanism. When the user performs the tamping operation, the micro switch simultaneously sends a braking signal to limit the output of coffee powder by the grinding mechanism. This effectively prevents coffee powder from slipping from the conveying channel onto the top of the tamping head, causing powder waste and contamination.

[0006] In one embodiment, the housing assembly includes a bracket, the drive assembly includes a rotating shaft and a connecting rod assembly, the rotating shaft is rotatably connected to the top of the bracket, one end of the connecting rod assembly is connected to the rotating shaft, and the other end of the connecting rod assembly is mounted on the top of the powder pressing head. The rotating shaft is configured to drive the connecting rod assembly to move the powder pressing head up and down relative to the receiving cavity when it rotates. The micro switch is disposed on the top of the bracket and adjacent to the rotating shaft. The peripheral wall of the rotating shaft is provided with an abutment portion, which is configured to move relative to the micro switch when the rotating shaft rotates to trigger or release the actuating portion of the micro switch. By linking the shaft and the linkage assembly, the rotational motion is efficiently converted into the vertical lifting motion of the tamping head. This transmission method is not only compact and precise in power transmission, but also ensures the smooth movement of the tamping head in the receiving cavity, thereby applying a uniform compressive force to the coffee powder. At the same time, when the shaft rotates, it can trigger or release the actuating part set on its periphery by driving the abutment part. When the tamping head is in the starting position, the abutment part presses the actuating part to move it to the preset position, so that the micro switch can control the grinding mechanism to perform grinding work and output powder to the receiving cavity through the conveying channel. When the shaft rotates and drives the tamping head away from the starting position through the linkage assembly, the abutment part is driven away from the releasing actuating part, and the micro switch will send a braking signal to limit the output of powder by the grinding mechanism.

[0007] In one embodiment, the abutting portion includes a limiting ring and an abutting protrusion. The limiting ring is sleeved on the outside of the rotating shaft, and the abutting protrusion is disposed on the outer peripheral wall of the limiting ring. An arc-shaped abutting surface is formed at the end of the abutting protrusion away from the limiting ring, and this arc-shaped abutting surface is used for sliding contact with the actuating portion. The abutting portion achieves a stable connection with the rotating shaft by being sleeved on the outside of the rotating shaft, ensuring that the rotating shaft can drive the abutting portion to move synchronously when rotating. Furthermore, by utilizing its arc-shaped abutting surface to slide against the actuating portion, frictional resistance and wear are reduced when the rotating shaft drives the abutting protrusion to rotate, thereby improving the durability and reliability of the component under frequent start-stop conditions.

[0008] In one embodiment, the bracket has an installation channel extending along its height. The bottom of the installation channel communicates with the receiving cavity, and the side wall of the installation channel has a through hole communicating with the output end of the conveying channel. The powder pressing head is movably disposed in the installation channel. By adopting the above structure, the installation channel can, on the one hand, limit the movement direction of the powder pressing head, ensuring that the powder pressing head can accurately align with the pressing cup assembly and descend to the powder pressing position under the drive of the connecting rod assembly to compact the powder in the receiving cavity. On the other hand, it can also contain the powder output from the conveying channel to a certain extent, reducing the influence of external airflow and avoiding powder diffusion that would cause waste and pollution.

[0009] In one embodiment, the support has a groove extending along the height direction, and the powder pressing head has a limiting protrusion inserted into the groove and moving along the length direction of the groove. By adopting the above structure, the movement direction of the powder pressing head can be limited by the cooperation between the limiting protrusion and the groove, ensuring that the powder pressing head can accurately align with the pressing cup assembly and descend to the powder pressing position to compact the powder in the receiving cavity under the drive of the connecting rod assembly.

[0010] In one embodiment, the linkage assembly includes a first linkage and a second linkage. The first linkage is fixedly connected to the rotating shaft, one end of the first linkage is hinged to one end of the second linkage, and the other end of the second linkage is hinged to the powder pressing head. By driving the rotating shaft to rotate, the first linkage and the second linkage rotate relative to the support, thereby causing the powder pressing head, which is mounted at the bottom of the second linkage, to rise and fall smoothly under the drive of the first linkage and the second linkage.

[0011] In one embodiment, the drive assembly further includes a handle, which is fixedly connected to the outer side of the rotating shaft. This allows the user to rotate the shaft by swinging the handle, making it easier to manually raise and lower the powder pressing head.

[0012] In one embodiment, the housing assembly further includes a positioning ring disposed at the bottom of the bracket, and the pressure cup assembly is detachably disposed within the positioning ring. The positioning ring provides a positioning function for the installation of the pressure cup assembly, effectively ensuring that the pressure cup assembly is aligned with the powder pressing head after installation.

[0013] In one embodiment, the grinding mechanism includes a grinding container, a grinding assembly, and a powder guiding shell. The grinding assembly includes an upper grinding section, a lower grinding section, and a drive motor. The lower grinding section is rotatably disposed in the grinding container and located above the upper grinding section. The drive motor is disposed below the grinding container. The output shaft of the drive motor passes through the bottom wall of the grinding container and is driven to the lower grinding section to rotate relative to the upper grinding section and cooperate with the upper grinding section to complete the grinding work. One end of the powder guiding shell is connected to the grinding container, and the other end of the powder guiding shell extends downward toward the pressure cup assembly. The powder guiding shell is provided with the conveying channel, which communicates with the powder discharge port on the grinding container. By adopting the above structure, when the user places coffee beans in the grinding container, the coffee beans will flow between the upper grinding section and the lower grinding section. When the grinding mechanism is started, the lower grinding section will rotate under the drive of the drive motor and cooperate with the upper grinding section to grind the coffee beans. The ground coffee powder can be discharged from the powder discharge port on the grinding container under the action of gravity and guided to the receiving cavity of the press assembly through the conveying channel for pressing. This easily realizes the automatic transfer of coffee powder, which not only improves the operating efficiency, but also effectively avoids the waste of powder and oxidation risk caused by manual transfer.

[0014] In one embodiment, the microswitch is configured to de-energize the drive motor when the tamping head leaves the starting position. Specifically, when the rotating shaft rotates and drives the tamping head away from the starting position via the linkage assembly, it simultaneously actuates the contact portion to release the trigger of the microswitch. This causes the microswitch to generate a braking signal to de-energize the drive motor, preventing it from driving the lower grinding section to rotate. This pauses the grinding of the coffee beans, effectively preventing the grinding mechanism from continuously producing coffee powder and causing it to slip from the conveying channel onto the top of the tamping head, thus avoiding powder waste and contamination when the tamping head is inserted into the receiving cavity.

[0015] In one embodiment, the grinding mechanism further includes a discharge valve located at the conveying channel or the discharge port. The microswitch is configured to control the discharge valve to close when the tamping head leaves the starting position, thereby closing the conveying channel or the discharge port. By employing the above structure, the discharge valve allows for flexible opening and closing of the conveying channel or the discharge port, achieving precise control over the flow of coffee powder. The discharge valve can both seal and collect powder during grinding to prevent oxidation and moisture absorption, and close the conveying channel or discharge port under the control of the microswitch during tamping, effectively preventing coffee powder from slipping from the conveying channel onto the top of the tamping head, thus avoiding powder waste and contamination.

[0016] In one embodiment, the grinding mechanism further includes an adjustment component. The upper grinding section is threadedly connected to the upper part of the grinding container. The adjustment component is configured to rotate the upper grinding section relative to the grinding container to adjust the distance between the upper and lower grinding sections. By employing this structure, the user can operate the adjustment component to rotate the upper grinding section relative to the grinding container, thereby adjusting the vertical position of the upper grinding section within the grinding container and changing the distance between the upper and lower grinding sections. This allows for control over the grind size of the coffee powder, effectively preventing under-extraction due to excessively coarse coffee powder or over-extraction due to excessively fine coffee powder.

[0017] In one embodiment, a rack is formed on the outer wall of the upper grinding section, the rack extending circumferentially along the upper grinding section. The adjustment assembly includes an adjustment seat, an adjustment member, and an adjustment gear. The adjustment seat is disposed on the grinding container or the housing assembly. The adjustment member is rotatably disposed on the adjustment seat. The adjustment gear is coaxially disposed on the adjustment member and meshes with the rack. The adjustment member is configured to drive the adjustment gear to rotate when rotated, so that the adjustment gear drives the upper grinding section to rotate relative to the grinding container. By adopting the above structure, the adjustment gear meshes with the rack on the outer wall of the upper grinding section. When the user rotates the adjustment member to drive the adjustment gear to rotate, the adjustment gear synchronously drives the upper grinding section to rotate relative to the grinding container, thereby adjusting the connection degree between the upper grinding section and the grinding container. This allows for adjustment of the vertical position of the upper grinding section within the grinding container, changing the distance between the upper and lower grinding sections, and controlling the grind size of the coffee powder.

[0018] In one embodiment, the adjustment component is a dial with multiple positioning grooves formed on its bottom. These grooves are spaced apart circumferentially along the dial. The adjustment component also includes a positioning element and a spring. The positioning element is located between the dial and the adjustment seat. One end of the positioning element is movably connected to the adjustment seat via the spring, and the other end can be selectively inserted into one of the positioning grooves. By employing this structure, the continuous pressure provided by the spring drives the positioning element into the positioning groove of the dial, thereby creating clear and reliable gear feedback. This allows the user to accurately lock the corresponding gear when adjusting the grinding intensity and effectively prevents accidental displacement. Attached Figure Description

[0019] Figure 1 A first internal structural diagram of a coffee machine according to one embodiment; Figure 2 A second internal structural diagram of a coffee machine according to one embodiment; Figure 3 A cross-sectional view of a coffee machine according to one embodiment; Figure 4 This is a schematic diagram of the first assembly of the powder pressing mechanism and the micro switch according to one embodiment; Figure 5 This is a second assembly diagram of the powder pressing mechanism and the micro switch according to one embodiment; Figure 6 This is a perspective view of a coffee grinding mechanism according to one embodiment.

[0020] The correspondence between the reference numerals and the component names is as follows: 1. Housing assembly, 101. Mounting channel, 102. Through hole, 103. Slide groove, 11. Bracket, 12. Positioning ring; 2. Grinding mechanism, 201. Conveying channel, 202. Positioning groove, 21. Grinding container, 22. Grinding assembly, 23. Powder guiding shell, 24. Adjustment assembly, 241. Adjusting component, 242. Adjusting gear, 243. Positioning component, 244. Spring; 3. Powder pressing mechanism, 31. Drive assembly, 311. Rotary shaft, 312. Linkage assembly, 3121. First link, 3122. Second link, 313. Handle, 32. Powder pressing head, 321. Limiting protrusion, 33. Abutting part, 331. Limiting ring, 332. Abutting protrusion; 4 microswitches, 41 actuating parts. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0023] The coffee machine of some embodiments of the present invention is described below with reference to the accompanying drawings.

[0024] like Figures 1 to 6As shown, this embodiment discloses a coffee machine, including: a housing assembly 1; a pressure cup assembly, which is disposed on the housing assembly 1 and has a receiving cavity with a top opening; a grinding mechanism 2, which is disposed on the housing assembly 1 and has a conveying channel 201 for grinding materials into powder and outputting the powder to the receiving cavity through the conveying channel 201; and a tamping mechanism 3, which is disposed on the housing assembly 1 and includes a drive assembly 31 and a tamping head 32. The tamping head 32 is movably disposed above the tamping cup assembly. The drive assembly 31 is connected to the tamping head 32 to drive the tamping head 32 to move up and down relative to the receiving cavity and has at least a starting position and a tamping position. When in the starting position, the tamping head 32 is away from the tamping cup assembly. When in the tamping position, the tamping head 32 extends into the receiving cavity to compact the powder in the receiving cavity. The micro switch 4 is used to control the grinding mechanism 2. The micro switch 4 is configured to limit the output of powder by the grinding mechanism 2 when the tamping head 32 leaves the starting position.

[0025] This application provides a coffee machine in which, during use, the user places coffee beans into the grinding mechanism 2 for grinding. The ground coffee powder is then guided by gravity from the conveying channel 201 to the receiving cavity of the tamping assembly and tamped by the tamping mechanism 3. This easily achieves automatic transfer of coffee powder, which not only improves operating efficiency but also effectively avoids powder waste and oxidation risks caused by manual transfer. In addition, a micro switch 4 is provided to control the grinding mechanism 2. The micro switch 4 can cooperate with the tamping mechanism 3. When the user performs the tamping operation, the micro switch 4 simultaneously sends a braking signal to limit the output of coffee powder by the grinding mechanism 2. This effectively prevents coffee powder from slipping from the conveying channel 201 onto the top of the tamping head 32, causing powder waste and contamination.

[0026] like Figure 2 and Figure 3As shown, in addition to the features of the above embodiments, this embodiment further defines: the housing assembly 1 includes a bracket 11, the drive assembly 31 includes a rotating shaft 311 and a connecting rod assembly 312, the rotating shaft 311 is rotatably connected to the top of the bracket 11, one end of the connecting rod assembly 312 is connected to the rotating shaft 311, and the other end of the connecting rod assembly 312 is installed on the top of the powder pressing head 32. The rotating shaft 311 is configured to drive the connecting rod assembly 312 to move the powder pressing head 32 up and down relative to the receiving cavity when rotating. The micro switch 4 is disposed on the top of the bracket 11 and adjacent to the rotating shaft 311. The peripheral wall of the rotating shaft 311 is provided with an abutment portion 33. The abutment portion 33 is configured to move relative to the micro switch 4 when the rotating shaft 311 rotates, so as to trigger or release the actuating portion 41 of the micro switch 4. Through the linkage between the rotating shaft 311 and the connecting rod assembly 312, the rotational motion is efficiently converted into the vertical lifting motion of the tamping head 32. This transmission method is not only compact and precise in power transmission, but also ensures the smooth movement of the tamping head 32 in the receiving cavity, thereby applying a uniform compressive force to the coffee powder. At the same time, when the rotating shaft 311 rotates, it can trigger or release the actuating part 41 by driving the abutment part 33 located on its periphery. When the tamping head 32 is in the starting position, the abutment part 33 presses the actuating part 41 to move it to the preset position, so that the micro switch 4 can control the grinding mechanism 2 to perform grinding work and output powder to the receiving cavity through the conveying channel 201. When the rotating shaft 311 rotates and drives the tamping head 32 away from the starting position through the connecting rod assembly 312, the abutment part 33 is driven away from the actuating part 41, and the micro switch 4 will send a braking signal to limit the output of powder by the grinding mechanism 2.

[0027] like Figure 4 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the abutment portion 33 includes a limiting ring 331 and an abutment protrusion 332. The limiting ring 331 is sleeved on the outside of the rotating shaft 311, and the abutment protrusion 332 is disposed on the outer peripheral wall of the limiting ring 331. An arc-shaped abutment surface is formed at the end of the abutment protrusion 332 away from the limiting ring 331. The arc-shaped abutment surface is used to slide against the trigger portion 41. The abutment portion 33 achieves a stable connection with the rotating shaft 311 by being sleeved on the outside of the rotating shaft 311 through the limiting ring 331, ensuring that the rotating shaft 311 can drive the abutment portion 33 to move synchronously when rotating. Furthermore, by utilizing its arc-shaped abutment surface to slide against the trigger portion 41, frictional resistance and wear can be reduced when the rotating shaft 311 drives the abutment protrusion 332 to rotate, thereby improving the durability and reliability of the component under frequent start-stop conditions.

[0028] like Figure 2 and Figure 3As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the bracket 11 is provided with an installation channel 101 extending along the height direction, the bottom of the installation channel 101 communicates with the receiving cavity, and the side wall of the installation channel 101 is provided with a through hole 102 communicating with the output end of the conveying channel 201. The powder pressing head 32 is movably disposed in the installation channel 101. By adopting the above structure, the installation channel 101 can, on the one hand, limit the movement direction of the powder pressing head 32, ensuring that the powder pressing head 32 can accurately align with the pressing cup assembly and descend to the powder pressing position under the drive of the connecting rod assembly 312 to compact the powder in the receiving cavity. On the other hand, it can, to a certain extent, contain the powder output from the conveying channel 201, reduce the influence of external airflow, and avoid powder diffusion that would cause waste and pollution.

[0029] like Figure 2 , Figure 3 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the support 11 is provided with a groove 103 extending along the height direction, and the powder pressing head 32 forms a limiting protrusion 321, which is inserted into the groove 103 and moves along the length direction of the groove 103. By adopting the above structure, the movement direction of the powder pressing head 32 can be limited by the cooperation between the limiting protrusion 321 and the groove 103, ensuring that the powder pressing head 32 can accurately align with the pressing cup assembly and descend to the powder pressing position under the drive of the connecting rod assembly 312 to compact the powder in the receiving cavity.

[0030] like Figure 3 and Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the linkage assembly 312 includes a first linkage 3121 and a second linkage 3122. The first linkage 3121 is fixedly connected to the rotating shaft 311. One end of the first linkage 3121 is hinged to one end of the second linkage 3122, and the other end of the second linkage 3122 is hinged to the powder pressing head 32. By driving the rotating shaft 311 to rotate, the first linkage 3121 and the second linkage 3122 rotate relative to the bracket 11, thereby causing the powder pressing head 32, which is installed at the bottom of the second linkage 3122, to rise and fall smoothly under the drive of the first linkage 3121 and the second linkage 3122.

[0031] like Figure 3 and Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the drive assembly 31 also includes a handle 313, and the handle 313 is fixedly connected to the outer side of the rotating shaft 311. Thus, the user can drive the rotating shaft 311 to rotate by swinging the handle 313, and more conveniently realize the raising and lowering of the powder pressing head 32 manually.

[0032] like Figure 3 and Figure 4As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the housing assembly 1 also includes a positioning ring 12, which is disposed at the bottom of the bracket 11, and the pressing cup assembly is detachably disposed in the positioning ring 12. The positioning ring 12 can provide a positioning function for the installation of the pressing cup assembly, effectively ensuring that the pressing cup assembly can be aligned with the powder pressing head 32 after installation.

[0033] like Figure 3 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further defines: the grinding mechanism 2 includes a grinding container 21, a grinding component 22, and a powder guiding shell 23. The grinding component 22 includes an upper grinding part, a lower grinding part, and a drive motor. The lower grinding part is rotatably disposed in the grinding container 21 and located above the upper grinding part. The drive motor is disposed below the grinding container 21. The output shaft of the drive motor passes through the bottom wall of the grinding container 21 and is driven to connect with the lower grinding part, so as to drive the lower grinding part to rotate relative to the upper grinding part and cooperate with the upper grinding part to complete the grinding work. One end of the powder guiding shell 23 is connected to the grinding container 21, and the other end of the powder guiding shell 23 extends downward toward the pressure cup component. The powder guiding shell 23 is provided with a conveying channel 201, which is connected to the powder discharge port on the grinding container 21. By adopting the above structure, when the user places coffee beans into the grinding container 21, the coffee beans will flow between the upper grinding section and the lower grinding section. When the grinding mechanism 2 is started, the lower grinding section will rotate under the drive of the drive motor and cooperate with the upper grinding section to grind the coffee beans. The ground coffee powder can be discharged from the powder discharge port on the grinding container 21 under the action of gravity and guided to the receiving cavity of the press cup assembly through the conveying channel 201 for pressing. This easily realizes the automatic transfer of coffee powder, which not only improves the operating efficiency, but also effectively avoids the waste of powder and oxidation risk caused by manual transfer.

[0034] In addition to the features of the above embodiments, this embodiment further specifies that the micro switch 4 is configured to de-energize the drive motor when the tamping head 32 leaves the starting position. Specifically, when the rotating shaft 311 rotates and drives the tamping head 32 away from the starting position via the connecting rod assembly 312, it simultaneously drives the abutment part 33 to release the contact part 41 of the micro switch 4, causing the micro switch 4 to generate a braking signal to control the drive motor to de-energize and stop driving the lower grinding part to rotate, thus pausing the grinding of coffee beans. This effectively prevents the grinding mechanism 2 from continuously producing coffee powder and causing it to slide off the conveying channel 201 onto the top of the tamping head 32 when the tamping head 32 is inserted into the receiving cavity, resulting in powder waste and contamination.

[0035] In addition to the features of the above embodiments, this embodiment further specifies that: the grinding mechanism 2 also includes a powder discharge valve, which is disposed at the conveying channel 201 or the powder discharge port. The micro switch 4 is configured to control the powder discharge valve to close when the tamping head 32 leaves the starting position, thereby closing the conveying channel 201 or the powder discharge port. By adopting the above structure, the powder discharge valve can flexibly open and close the conveying channel 201 or the powder discharge port, achieving precise control of the coffee powder flow. The powder discharge valve can both seal and collect the powder during grinding to prevent the coffee powder from oxidizing and becoming damp, and close the conveying channel 201 or the powder discharge port under the control of the micro switch 4 during tamping, effectively preventing coffee powder from sliding from the conveying channel 201 to the top of the tamping head 32, causing powder waste and contamination.

[0036] like Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the grinding mechanism 2 also includes an adjustment component 24. The upper grinding part is threadedly connected to the upper part of the grinding container 21. The adjustment component 24 is configured to drive the upper grinding part to rotate relative to the grinding container 21, thereby adjusting the distance between the upper grinding part and the lower grinding part. By adopting the above structure, the user can operate the adjustment component 24 to rotate the upper grinding part relative to the grinding container 21, thereby adjusting the vertical position of the upper grinding part in the grinding container 21, changing the distance between the upper grinding part and the lower grinding part, thereby controlling the coarseness of the coffee powder, and ultimately effectively avoiding under-extraction caused by excessively coarse coffee powder or over-extraction caused by excessively fine coffee powder.

[0037] like Figure 2 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further defines: a rack is formed on the outer wall of the upper grinding part, the rack extends circumferentially along the upper grinding part, the adjustment assembly 24 includes an adjustment seat, an adjustment member 241 and an adjustment gear 242, the adjustment seat is disposed on the grinding container 21 or the housing assembly 1, the adjustment member 241 is rotatably disposed on the adjustment seat, the adjustment gear 242 is coaxially disposed on the adjustment member 241, the adjustment gear 242 meshes with the rack, and the adjustment member 241 is configured to drive the adjustment gear 242 to rotate when rotating, so that the adjustment gear 242 drives the upper grinding part to rotate relative to the grinding container 21. By adopting the above structure, the adjusting gear 242 meshes with the rack on the outer wall of the upper grinding part. When the user rotates the adjusting member 241 to drive the adjusting gear 242 to rotate, the adjusting gear 242 synchronously drives the upper grinding part to rotate relative to the grinding container 21, so as to adjust the degree of connection between the upper grinding part and the grinding container 21, thereby realizing the adjustment of the upper and lower positions of the upper grinding part in the grinding container 21, changing the distance between the upper grinding part and the lower grinding part, and controlling the fineness of the coffee powder.

[0038] like Figure 6As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the adjustment component 24 is a dial, and a plurality of positioning grooves 202 are formed on the bottom of the dial. The plurality of positioning grooves 202 are distributed at intervals along the circumference of the dial. The adjustment component 24 also includes a positioning member 243 and a spring 244. The positioning member 243 is located between the dial and the adjustment seat. One end of the positioning member 243 is movably connected to the adjustment seat through the spring 244, and the other end of the positioning member 243 can be selectively inserted into one of the plurality of positioning grooves 202. By adopting the above structure, the positioning member 243 is driven into the positioning groove 202 of the dial by the continuous pressure provided by the spring 244, thereby forming a clear and reliable gear feedback, which allows the user to accurately lock the corresponding gear when adjusting the grinding intensity and effectively prevents accidental displacement.

[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A coffee machine, characterized in that, include: Housing assembly (1); A cup pressing assembly is disposed on the housing assembly (1) and the cup pressing assembly has a receiving cavity with a top opening; A grinding mechanism (2) is disposed on the housing assembly (1). The grinding mechanism (2) has a conveying channel (201). The grinding mechanism (2) is used to grind the material into powder and output the powder to the receiving cavity through the conveying channel (201). The powder pressing mechanism (3) is disposed on the housing assembly (1). The powder pressing mechanism (3) includes a drive assembly (31) and a powder pressing head (32). The powder pressing head (32) is movably disposed above the pressing cup assembly. The drive assembly (31) is connected to the powder pressing head (32) to drive the powder pressing head (32) to move up and down relative to the receiving cavity and have at least a starting position and a powder pressing position. When it is in the starting position, the powder pressing head (32) is away from the pressing cup assembly. When it is in the powder pressing position, the powder pressing head (32) extends into the receiving cavity to compact the powder in the receiving cavity. A micro switch (4) is used to control the grinding mechanism (2), and the micro switch (4) is configured to limit the output of powder by the grinding mechanism (2) when the tamping head (32) leaves the starting position.

2. The coffee machine according to claim 1, characterized in that, The housing assembly (1) includes a bracket (11), and the drive assembly (31) includes a rotating shaft (311) and a connecting rod assembly (312). The rotating shaft (311) is rotatably connected to the top of the bracket (11). One end of the connecting rod assembly (312) is connected to the rotating shaft (311), and the other end of the connecting rod assembly (312) is mounted on the top of the powder pressing head (32). The rotating shaft (311) is configured to drive the connecting rod assembly (312) to move the powder pressing head (32) relative to the receiving cavity when rotating. The micro switch (4) is disposed on the top of the bracket (11) and adjacent to the rotating shaft (311). The peripheral wall of the rotating shaft (311) is provided with an abutment portion (33). The abutment portion (33) is configured to move relative to the micro switch (4) when the rotating shaft (311) rotates, so as to trigger or release the actuating portion (41) of the micro switch (4).

3. The coffee machine according to claim 2, characterized in that, The abutting part (33) includes a limiting ring (331) and an abutting protrusion (332). The limiting ring (331) is sleeved on the outside of the rotating shaft (311). The abutting protrusion (332) is disposed on the outer peripheral wall of the limiting ring (331). The end of the abutting protrusion (332) away from the limiting ring (331) forms an arc-shaped abutting surface. The arc-shaped abutting surface is used to slide against the triggering part (41).

4. The coffee machine according to claim 2, characterized in that, The bracket (11) is provided with an installation channel (101) extending along the height direction. The bottom of the installation channel (101) communicates with the receiving cavity. The side wall of the installation channel (101) is provided with a through hole (102) communicating with the output end of the conveying channel (201). The powder pressing head (32) is movably disposed in the installation channel (101); and / or The support (11) is provided with a groove (103) extending along the height direction, and the powder pressing head (32) forms a limiting protrusion (321), which is inserted into the groove (103) and moves along the length direction of the groove (103); and / or The connecting rod assembly (312) includes a first connecting rod (3121) and a second connecting rod (3122). The first connecting rod (3121) is fixedly connected to the rotating shaft (311). One end of the first connecting rod (3121) is hinged to one end of the second connecting rod (3122), and the other end of the second connecting rod (3122) is hinged to the powder pressing head (32); and / or The drive assembly (31) also includes a handle (313), which is fixedly connected to the outside of the rotating shaft (311).

5. The coffee machine according to claim 2, characterized in that, The housing assembly (1) further includes a positioning ring (12), which is disposed at the bottom of the bracket (11), and the cup pressing assembly is detachably disposed in the positioning ring (12).

6. The coffee machine according to claim 1, characterized in that, The grinding mechanism (2) includes a grinding container (21), a grinding assembly (22), and a powder guiding shell (23). The grinding assembly (22) includes an upper grinding part, a lower grinding part, and a drive motor. The lower grinding part is rotatably disposed in the grinding container (21) and located above the upper grinding part. The drive motor is disposed below the grinding container (21). The output shaft of the drive motor passes through the bottom wall of the grinding container (21) and is driven to connect with the lower grinding part to drive the lower grinding part to rotate relative to the upper grinding part and cooperate with the upper grinding part to complete the grinding work. One end of the powder guiding shell (23) is connected to the grinding container (21), and the other end of the powder guiding shell (23) extends downward toward the pressure cup assembly. The powder guiding shell (23) is provided with the conveying channel (201), and the conveying channel (201) is connected to the powder discharge port on the grinding container (21).

7. The coffee machine according to claim 6, characterized in that, The micro switch (4) is configured to de-energize the drive motor when the powder pressing head (32) leaves the starting position; and / or The grinding mechanism (2) also includes a powder discharge valve, which is located at the conveying channel (201) or the powder discharge port. The micro switch (4) is configured to control the powder discharge valve to close when the pressing head (32) leaves the starting position, so as to close the conveying channel (201) or the powder discharge port.

8. The coffee machine according to claim 7, characterized in that, The grinding mechanism (2) further includes an adjustment component (24), the upper grinding part is threadedly connected to the upper part of the grinding container (21), and the adjustment component (24) is configured to drive the upper grinding part to rotate relative to the grinding container (21) to adjust the distance between the upper grinding part and the lower grinding part.

9. The coffee machine according to claim 8, characterized in that, The outer wall of the upper grinding part is formed with a rack, which extends circumferentially along the upper grinding part. The adjustment assembly (24) includes an adjustment seat, an adjustment member (241), and an adjustment gear (242). The adjustment seat is disposed on the grinding container (21) or the housing assembly (1). The adjustment member (241) is rotatably disposed on the adjustment seat. The adjustment gear (242) is coaxially disposed on the adjustment member (241). The adjustment gear (242) meshes with the rack. The adjustment member (241) is configured to drive the adjustment gear (242) to rotate when it rotates, so that the adjustment gear (242) drives the upper grinding part to rotate relative to the grinding container (21).

10. The coffee machine according to claim 9, characterized in that, The adjustment component (24) is a dial, and a plurality of positioning grooves (202) are formed on the bottom of the dial. The plurality of positioning grooves (202) are distributed at intervals along the circumference of the dial. The adjustment component (24) also includes a positioning element (243) and a spring (244). The positioning element (243) is located between the dial and the adjustment seat. One end of the positioning element (243) is movably connected to the adjustment seat through the spring (244). The other end of the positioning element (243) can be selectively inserted into one of the plurality of positioning grooves (202).

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