A coffee grinder and coffee maker

Abstract

The utility model discloses a kind of grinding device and coffee machine, including grinding seat, grinding cavity is equipped on grinding seat;Powder channel component, powder channel component includes powder outlet pipe and powder baffle cover, powder outlet pipe has powder outlet passage, the inlet of powder outlet passage is communicated with grinding cavity;Powder baffle cover extends along the circumferential extension of powder outlet passage's outlet, and is surrounded in outlet;Powder outlet cavity in powder baffle cover is communicated with outlet;Ion generator, ion generator is installed on the outside of powder channel component, electrode end on ion generator is inserted into powder outlet cavity, and is set close to outlet.The coffee machine includes the grinding device.It is by setting powder baffle cover at the outlet of powder outlet pipe, and the electrode of ion generator is inserted into powder baffle cover, both avoid electrode interference powder flow falling path, and can be restrained ion and powder flow by means of powder baffle cover, so that the ion released by electrode end is concentrated and acts on the powder flow falling at outlet, to reduce the problem of flying powder, powder adsorption pipeline caused by static electricity.

Description

Technical Field

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

[0002] Coffee makers are widely used in homes and businesses because they preserve the flavor of coffee. The grinder, as a core component, directly affects the coffee powder output and subsequent extraction quality. In existing grinders, the ground coffee powder needs to be transported to the portafilter via a discharge pipe. However, friction between coffee powder particles during grinding can generate static electricity, leading to problems such as flyaway coffee powder or uneven output. Coffee powder can easily adhere to the discharge channel, causing blockages, and can also easily scatter from the outlet, polluting the machine and the surrounding environment. Therefore, existing grinders are usually equipped with an ion generator to eliminate static electricity.

[0003] However, existing ion generators typically have electrodes inserted directly into the coffee powder outlet tube during installation. While this allows for close contact with the coffee powder, it interferes with the natural falling path of the powder and easily leads to powder clumps accumulating around the electrodes, further exacerbating uneven powder distribution. Additionally, some designs place the ion generator directly at the outlet of the coffee powder tube. Although this avoids physical interference and powder accumulation within the tube, the lack of ion restraint allows them to diffuse outwards, failing to concentrate their effect on the falling coffee powder stream. This results in a dispersed and insufficiently strong static elimination range, making it difficult to effectively suppress flying powder and pipe adhesion issues. Utility Model Content In order to overcome at least one of the defects of the prior art, one of the objectives of this utility model is to provide a grinding device that, by setting a powder baffle at the outlet of the powder pipe and extending the electrode of the ion generator into the powder baffle, not only avoids the electrode from interfering with the falling path of the powder flow, but also allows the ions to be concentrated on the powder flow at the outlet by means of the powder baffle, thereby reducing the problem of electrostatic powder flying and pipe adsorption.

[0004] The second objective of this invention is to provide a coffee machine that includes the aforementioned grinding device, which can effectively reduce problems such as flying powder pollution. One of the objectives of this utility model is achieved through the following technical solution: A grinding apparatus, comprising: A grinding stand, wherein the grinding stand is provided with a grinding chamber; A powder channel assembly includes a powder outlet pipe and a powder baffle. The powder outlet pipe has a powder outlet channel with an inlet and an outlet, the inlet being connected to the grinding chamber. The powder baffle extends circumferentially along the outlet and surrounds the outlet. The powder baffle has a powder outlet cavity that communicates with the outlet. An ion generator is installed on the outside of the powder channel assembly. The ion generator is provided with an electrode that extends into the powder outlet chamber and is located near the outlet.

[0005] Furthermore, the powder outlet cavity is provided with a first baffle and a second baffle. The first baffle is located near the outlet, and the second baffle is spaced apart from the first baffle to form an installation gap. The electrode end extends into the installation gap. The first baffle is provided with a through hole, and the installation interval is connected to the powder outlet cavity through the through hole; the through hole is arranged correspondingly to the electrode end.

[0006] Furthermore, the inner diameter of the powder outlet cavity is D, and the inner diameter of the powder outlet channel is d, where D > d.

[0007] Furthermore, the powder shield is provided with a first guide surface, which is connected to the outlet, and the other end of the first guide surface forms the cavity wall of the powder outlet cavity.

[0008] Furthermore, the powder outlet pipe includes a first pipe section and a second pipe section, one end of the first pipe section is connected to the grinding chamber, and the other end of the first pipe section is detachably connected to the second pipe section; the powder outlet channel is formed within the first pipe section and the second pipe section; The inlet is located in the first pipe section, and the outlet is located in the second pipe section.

[0009] Furthermore, the first pipe segment includes a first housing and a second housing, the first housing being connected to the grinding base, and the second housing being sealed to the first housing and forming the first pipe segment; The first housing is provided with a first snap-fit ​​portion, and the second housing is provided with a second snap-fit ​​portion; the first snap-fit ​​portion and the second snap-fit ​​portion are engaged and connected.

[0010] Furthermore, the first snap-fit ​​portion includes a snap-fit ​​block, and the second snap-fit ​​portion includes a snap-fit ​​interface. The snap-fit ​​block is used to snap onto the snap-fit ​​interface when the second housing is sealed to the first housing. The end wall of the card interface and at least one of the card contact block are provided with a second guide surface, which is used to guide the card contact block to engage with the card interface when the card interface is close to the card contact block.

[0011] Furthermore, the grinding device includes a mounting base, on which the grinding base is mounted; the mounting base is provided with a mounting groove, and the mounting groove is provided with a mounting opening; one end of the powder outlet pipe is connected to the grinding base, and the other end of the powder outlet pipe extends into the mounting groove; the powder baffle is provided through the mounting opening. The powder shield is provided with a through-groove section, the ion generator is located in the mounting groove, and the electrode end extends into the powder outlet chamber through the through-groove section.

[0012] Furthermore, the grinding base is provided with a cutter head mechanism and a drive mechanism. The cutter head mechanism is rotatably mounted on the grinding chamber, and the drive mechanism is used to drive the cutter head mechanism to rotate.

[0013] The technical solution adopted for the second objective of this utility model is: A coffee machine including the aforementioned grinding device.

[0014] In summary, the grinding device and coffee machine provided by this utility model have the following technical effects: When the grinding device of the coffee machine is set up, a powder baffle is set at the outlet of the powder tube, and the electrode of the ion generator is extended into the inside of the powder baffle. This allows the powder that has been ground in the grinding chamber to fall naturally along the inner wall of the powder tube to the outlet of the powder tube, and then fall directly into the independent powder outlet chamber formed by the powder baffle.

[0015] Thus, since the electrode does not directly extend into the powder outlet pipe, the problem of physical interference to the natural falling path of the powder flow caused by the electrode directly extending into the powder outlet pipe is avoided; at the same time, the relatively closed space formed by the powder baffle can constrain the ions and the powder flow, so that the ions released by the electrode are concentrated on the falling powder flow at the outlet, thereby reducing the problems of powder flying and powder adsorption into the pipe caused by static electricity. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments 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 a schematic diagram of the structure of Embodiment 1 of the present utility model; Figure 2 This is a schematic diagram of the structure of Embodiment 1 of this utility model from another perspective; Figure 3 for Figure 2 Enlarged diagram of A in the middle; Figure 4 This is a schematic diagram of the structure of the grinding seat in Embodiment 1 of this utility model; Figure 5 This is a schematic diagram of the structure of the grinding seat in Embodiment 1 of this utility model from another perspective; Figure 6 This is a cross-sectional view of the grinding seat in Embodiment 1 of this utility model; Figure 7for Figure 6 Enlarged diagram of B in the middle; Figure 8 This is an exploded view of the structure of the grinding seat in Embodiment 1 of this utility model; Figure 9 This is a schematic diagram of the structure of the second pipe section in Embodiment 1 of this utility model; Figure 10 This is a schematic diagram of the mounting base in Embodiment 1 of this utility model; Figure 11 This is a schematic diagram of the structure of Embodiment 2 of the present invention; Figure 12 This is a schematic diagram of the structure of Embodiment 2 of this utility model from another perspective.

[0018] The meanings of the reference numerals in the attached figures are as follows: 10. Grinding base; 11. Grinding chamber; 12. Cutter disc mechanism; 13. Drive mechanism; 20. Powder channel assembly; 21. Powder outlet pipe; 211. Powder outlet channel; 2111. Inlet; 2112. Outlet; 212. First pipe section; 2121. First housing; 2122. Second housing; 2123. First snap-fit ​​part; 2124. Second snap-fit ​​part; 2125. Second guide surface; 213. Second pipe section; 22. Powder baffle; 221. Powder outlet chamber; 222. First baffle; 2221. Through hole; 223. Second baffle; 224. Installation interval; 225. First guide surface; 226. Through groove section; 30. Ion generator; 31. Electrode end; 40. Mounting base; 41. Mounting groove; 42. Mounting port; 50. Machine body. Detailed Implementation

[0019] 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.

[0020] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0021] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0022] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0023] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0024] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0025] Example 1, See Figures 1 to 10 This utility model discloses a grinding device, including a grinding base 10, a powder channel assembly 20, and an ion generator 30. A grinding chamber 11 is provided on the grinding base 10. The powder channel assembly 20 includes a powder outlet pipe 21 and a powder baffle 22. The powder outlet pipe 21 has a powder outlet channel 211, which has an inlet 2111 and an outlet 2112, connecting the inlet 2111 to the grinding chamber 11. The powder baffle 22 extends circumferentially along the outlet 2112 and surrounds it. The powder baffle 22 also has a powder outlet cavity 221, which communicates with the outlet 2112. The ion generator 30 is installed on the outside of the powder channel assembly 20. An electrode 31 is provided on the ion generator 30, extending into the powder outlet cavity 221 and positioned near the outlet 2112.

[0026] Based on the above structure, during assembly, one end of the powder outlet pipe 21 is sealed and connected to the grinding base 10, and the other end is connected to the powder baffle 22. This allows the inlet 2111 of the powder outlet channel 211 to communicate with the grinding chamber 11, and the outlet 2112 to communicate with the powder outlet cavity 221 inside the powder baffle 22, forming a complete powder outlet path. In this way, the powder generated by grinding in the grinding chamber 11 can enter the powder outlet channel 211 through the inlet 2111 and fall naturally along the inner wall of the powder outlet pipe 21 to the outlet 2112 by gravity. Then, it falls into the independent powder outlet cavity 221 enclosed by the powder baffle 22 through the outlet 2112. At this time, the shell of the powder baffle 22 (i.e., the inner wall of the powder outlet cavity 221) can block the powder discharged from the outlet 2112, confining the powder within the powder outlet cavity 221, reducing the risk of powder diffusion and minimizing the problem of it directly scattering into the surrounding environment.

[0027] Meanwhile, since the electrode 31 of the ion generator 30 extends into the powder outlet chamber 221 and is located near the outlet 2112 of the powder outlet channel 211, the powder falling into the powder outlet chamber 221 can contact the ions released by the electrode at the first moment. The ions neutralize the static charge on the powder surface, reduce the adsorption force between powder particles and the adhesion force to the device wall, thereby reducing the problem of powder flying caused by static electricity and the residual accumulation of powder on the inner wall of the powder outlet tube 21.

[0028] Furthermore, since the powder baffle 22 is directly surrounding the relatively enclosed space formed by the outlet 2112, the powder diffusion range is limited within the powder outlet cavity 221, reducing premature powder dispersion. Simultaneously, the powder baffle 22 also suppresses the random diffusion of ions released from the electrode 31 into the external space, maintaining a high ion concentration and concentrating its effect on the powder exiting the outlet 2112. Compared to an open design without the powder baffle 22, which is prone to problems such as easy ion diffusion and powder scattering, resulting in insufficient contact between ions and the powder stream, this design improves electrostatic neutralization efficiency. This allows the ions released from the electrode 31 to concentrate their effect on the powder stream falling from the outlet 2112, further reducing powder scattering caused by insufficient interaction between ions and the powder stream.

[0029] In addition, in this embodiment, the electrode 31 does not extend directly into the powder outlet tube 21, but is set in an independent powder outlet chamber 221. This effectively avoids direct contact between the electrode 31 and the powder in the powder outlet channel 211, reduces the physical interference caused by the electrode 31 extending directly into the powder outlet tube 21 on the natural falling path of the powder, and reduces the problems of powder flow jamming and local powder accumulation that are prone to occur around the electrode 31 in traditional designs.

[0030] More specifically, the grinding device in this embodiment can be applied to devices such as coffee machines or coffee grinders. Since a powder baffle 22 is provided at the outlet of the powder outlet pipe 21, and the electrode 31 of the ion generator 30 is extended into the inside of the powder baffle 22, the powder ground by the grinding chamber 11 can fall naturally along the inner wall of the powder outlet pipe 21 to the outlet of the powder outlet pipe 21, and then fall directly into the independent powder outlet chamber 221 enclosed by the powder baffle 22.

[0031] Thus, since the electrode 31 does not directly extend into the powder outlet pipe 21, the problem of physical interference to the natural falling path of the powder flow caused by the electrode 31 directly extending into the powder outlet pipe 21 is avoided; at the same time, the relatively closed space formed by the powder baffle 22 can constrain the ions and the powder flow, so that the ions released by the electrode 31 are concentrated on the powder flow falling at the outlet, thereby reducing the problems of flying powder and powder adsorption pipe caused by static electricity.

[0032] It should be noted that in this embodiment, the powder outlet pipe 21 can be connected and energized to the grinding seat 10 and the powder baffle 22 respectively by means of integral molding, gluing or other connection methods.

[0033] In addition, the ion generator 30 is the existing type, and the electrode end 31 is a needle-shaped structure (electrode needle) for releasing ions. During installation, it can be fixed to the outside of the powder shield 22 or the powder outlet tube 21 using screws or other connecting parts, or it can be quickly assembled using snap-fit ​​parts (such as elastic buckles or positioning slots). At the same time, holes or slots matching the electrode end 31 are set on the powder shield 22 so that the electrode end 31 (positive end and negative end) of the ion generator 30 can be inserted.

[0034] Furthermore, a first baffle 222 and a second baffle 223 are provided in the powder outlet chamber 221. The first baffle 222 is positioned close to the outlet 2112. The second baffle 223 is spaced apart from the first baffle 222 to form an installation gap 224. The electrode end 31 is inserted into the installation gap 224. The first baffle 222 is provided with a through hole 2221. The installation gap 224 is connected to the powder outlet chamber 221 through the through hole 2221. The through hole 2221 is correspondingly positioned with the electrode end 31.

[0035] Specifically, during assembly, the first baffle 222 and the second baffle 223 can be fixed to the inner wall of the powder shield 22 by snap-fit ​​or welding. The spacing between them is adapted to the size of the electrode 31 so that the electrode 31 can fully extend into the mounting interval 224 without touching the two baffles, thereby dividing the powder outlet chamber 221 into an independent mounting interval 224 for the electrode 31. In this way, the first baffle 222 and the second baffle 223 can form a physical shield from the outer periphery of the electrode 31, allowing only a small amount of airflow carrying ions to pass through the through hole 2221, preventing falling powder from directly impacting or accumulating on the surface of the electrode 31, thereby reducing the failure of the electrode 31 caused by powder adhesion.

[0036] Meanwhile, the through hole 2221 is set on the first baffle 222 near the outlet 2112, and the through hole 2221 is set in correspondence with the electrode 31. The through hole 2221 connects the installation interval 224 and the powder outlet chamber 221, and guides the ions released in the installation interval 224, so that the ions are concentrated and led out through the through hole 2221 to the powder flow area below the outlet 2112, reducing the irregular diffusion of ions in the powder outlet chamber 221 and further improving the accuracy of electrostatic neutralization.

[0037] It should be noted that without the installation gap 224 formed by the first baffle 222 and the second baffle 223, after the electrode 31 extends directly into the powder outlet chamber 221, the falling powder may directly wash over the electrode 31, causing powder particles to easily accumulate and cover the active area of ​​the electrode 31, weakening the ion release efficiency and requiring frequent cleaning. At the same time, the ions released by the electrode 31 will diffuse in all directions of the powder outlet chamber 221, unable to act directionally on the powder flow falling from the outlet 2112. Some ions may be scattered by the airflow without contacting the powder, resulting in a decrease in the electrostatic elimination effect and difficulty in solving the problem of flying powder and adsorption to the pipeline. Therefore, in this embodiment, the setting of two baffles can both prevent powder from directly impacting or accumulating on the surface of the electrode 31, reducing the impact of powder accumulation on ion release, and guide ions through the through hole 2221 to concentrate on the powder flow falling from the outlet 2112, improving the accuracy of electrostatic neutralization, thereby more effectively suppressing the problem of flying powder and adsorption to the pipeline.

[0038] Furthermore, the inner diameter of the powder outlet cavity 221 is D, and the inner diameter of the powder outlet channel 211 is d, where D > d.

[0039] Specifically, if D = d, that is, the inner diameter of the powder outlet chamber 221 is the same as that of the powder outlet channel 211, the ions released by the electrode 31 can only diffuse in a region with the same width as the channel. When the powder falls, it is easy to form a dense powder flow, and the ions cannot fully penetrate into the powder flow. They can only neutralize the static electricity on the surface of the powder flow, while the inner powder particles are still statically charged, which can easily lead to powder flying or adsorption. If D < d, the space of the powder outlet chamber 221 is further narrowed, the ion diffusion range is severely compressed, and the narrow space may even cause airflow turbulence. Some ions will escape with the airflow without contacting the powder flow, and the static neutralization efficiency will decrease.

[0040] Therefore, in this embodiment, the D value > the d value, so that when the powder flows, it can first fall naturally along the inner wall of the powder outlet channel 211 with a smaller inner diameter, and then enter the powder outlet cavity 221 with a larger inner diameter. At this time, the powder outlet cavity 221 forms a wider space than the powder outlet channel 211. The ions released by the electrode 31 can diffuse fully in the widened area. When the powder enters the powder outlet cavity 221, the powder particles will naturally disperse, so that the ions can penetrate into the powder layer and fully contact the powder particles, improve the electrostatic neutralization efficiency, reduce the retention of electrostatic powder particles, improve the electrostatic removal effect, and reduce the problem of flying powder.

[0041] More specifically, when D > d, the powder enters the powder outlet chamber 221 from the powder outlet channel 211, and the space widens. The powder particles can fall naturally without being squeezed, and the friction frequency between powder particles and between powder particles and the tube wall is reduced, thus reducing the amount of static electricity generated. At the same time, widening the space can slow down the powder flow rate, further reducing the static electricity generated by high-speed friction. The ion generator 30 only needs to neutralize a small amount of residual static electricity, and the static electricity elimination is more thorough.

[0042] In addition, compared to the narrow space of the powder outlet channel 211, the larger inner diameter of the powder outlet cavity 221 can reduce the instantaneous accumulation of powder at the outlet, reduce the powder outlet jam caused by concentrated powder flow, ensure the smoothness of powder falling, and indirectly improve the uniformity of powder outlet.

[0043] Furthermore, the powder shield 22 is provided with a first guide surface 225, which is connected to the outlet 2112, and the other end of the first guide surface 225 forms the cavity wall of the powder outlet cavity 221.

[0044] Specifically, the first guiding surface 225 can be an inclined surface or an arc surface. After connecting the first guiding surface 225 to the outlet 2112 of the powder outlet channel 211, a smooth transition path is formed from the narrow powder outlet channel 211 to the wide powder outlet cavity 221 through the inclined surface or arc surface. In this way, when the powder is discharged from the outlet 2112, it does not need to face the cavity wall of the wide cavity directly, but slides naturally and diffuses in an orderly manner along the first guiding surface 225 (inclined or arc surface). This can effectively reduce the violent impact and tumbling of the powder flow due to the sudden widening of the space, thereby reducing the friction between powder particles and reducing the amount of static electricity generated during the transition stage.

[0045] Compared to the powder shield 22 which does not have a first guiding surface 225, when powder particles fall directly from the narrow powder outlet channel 211 into the wide powder outlet cavity 221, the powder particles are prone to suddenly changing from directional falling to disordered diffusion due to the loss of the constraint of the powder outlet channel 211. The sudden change in the direction of movement can easily lead to collisions and impacts between powder particles and the cavity wall, increasing the friction between powder particles and generating static electricity. Therefore, in this embodiment, the guiding of the powder particles through the inclined surface or the arc surface allows the direction of movement of the powder particles to gradually transition from vertical downward to inclined downward along the inclined surface or downward along the arc surface curve, reducing the sudden change in the state of powder movement and thus reducing the static electricity generated by impact friction.

[0046] Furthermore, the powder outlet pipe 21 includes a first pipe section 212 and a second pipe section 213. One end of the first pipe section 212 is connected to the grinding chamber 11, and the other end of the first pipe section 212 is detachably connected to the second pipe section 213. When the first pipe section 212 and the second pipe section 213 are connected, a powder outlet channel 211 can be formed in the first pipe section 212 and the second pipe section 213. The inlet 2111 is located in the first pipe section 212, and the outlet 2112 is located in the second pipe section 213.

[0047] Specifically, since the powder outlet pipe 21 is assembled from the first pipe section 212 and the second pipe section 213 through a detachable method (such as threaded connection or snap-fit ​​connection), when it is necessary to clean the inner wall of the powder outlet pipe 21, the user does not need to disassemble the entire grinding device. The two pipe sections can be separated by simple operations such as plugging and unplugging, and the originally long powder outlet pipe 21 can be split into two short pipes. The user can clean the two short pipes separately, making cleaning easier.

[0048] Compared to the one-piece molded powder outlet tube 21, the internal channels of the long tube are deep and narrow, making it difficult for ordinary cleaning tools (such as brushes and cotton threads) to fully reach the bottom of the tube. This can easily create cleaning dead zones in the middle or end of the tube, resulting in residual powder particles not being completely removed. The segmented design shortens the length of each tube segment, allowing users to directly immerse the short tube completely in the cleaning solution or use tools to wipe the inner wall in both directions. There is no need to worry about the length of the cleaning tools being insufficient, making it easy to thoroughly clean the powder outlet tube 21, reducing the difficulty of cleaning operations and improving cleaning efficiency.

[0049] Furthermore, in this embodiment, the first pipe segment 212 includes a first housing 2121 and a second housing 2122. During assembly, the first housing 2121 is connected to the grinding base 10, and the second housing 2122 is sealed to the first housing 2121 and formed as the first pipe segment 212. A first snap-fit ​​portion 2123 is provided on the first housing 2121, and a second snap-fit ​​portion 2124 is provided on the second housing 2122, so that the first snap-fit ​​portion 2123 and the second snap-fit ​​portion 2124 are snapped together.

[0050] Specifically, the first pipe segment 212, as a key pipeline directly connected to the grinding base 10, would require disassembling the entire pipe segment from the grinding base 10 (e.g., unscrewing the fixing screws) during cleaning if it were an integrated structure. This would not only be cumbersome but could also affect the installation accuracy of the grinding base 10 due to frequent disassembly. Therefore, in this embodiment, the first pipe segment 212 adopts an assembly structure of a first housing 2121 and a second housing 2122. When the powder outlet pipe 21 needs to be cleaned, the second pipe segment 213 of the powder outlet pipe 21 is first removed from the first pipe segment 212 and cleaned separately. Subsequently, without touching the grinding base 10, the first snap-fit ​​part 2123 on the first housing 2121 and the second snap-fit ​​part 2124 on the second housing 2122 can be separated to remove the second housing 2122, thus completely exposing the inner wall of the originally sealed first pipe segment 212.

[0051] At this time, the user can directly wipe the inner surfaces of the first housing 2121 and the second housing 2122 with a cloth or brush to easily remove the powder accumulated at the interface between the first housing 2121 and the grinding seat 10, as well as the dead corner powder particles at the corner of the first housing 2121 and the grinding seat 10. The grinding seat 10 does not need to be removed during the whole process, reducing the difficulty of operation.

[0052] Compared to the integrated pipe section design, which requires disassembling the grinding base 10 for cleaning, involves multiple steps and involves easily damaged parts. Even if it is managed to be removed, tools can only be inserted from the pipe opening for one-way wiping, leaving the deeper parts of the pipe and the inner area connected to the grinding base 10 inaccessible, resulting in powder residue. In contrast, the first pipe section 212 of this solution features a detachable structure, allowing cleaning without disassembling the grinding base 10, making cleaning much more convenient. Furthermore, separating the two housings during cleaning allows users to directly wipe the inner surfaces of both housings, easily removing powder from the interfaces and corners, reducing the problem of incomplete cleaning due to hard-to-reach areas.

[0053] It should be noted that the first snap-fit ​​part 2123 can be a protrusion or elastic buckle on the first housing 2121, while the second snap-fit ​​part 2124 is a slot or latch corresponding to the protrusion. During assembly, simply press the protrusion or elastic buckle to snap it into the slot or latch to complete the assembly of the first housing 2121 and the second housing 2122. During disassembly, simply pry the elastic buckle or protrusion to disengage it from the slot or latch. Compared with the threaded connection, the first housing 2121 and the second housing 2122 can be disassembled and assembled without the need for screws, wrenches or other tools, making the operation simpler and faster and reducing the difficulty of operation for users during cleaning.

[0054] Of course, the first snap-fit ​​part 2123 can also be a snap-fit ​​or slot structure provided on the first housing 2121, while the second snap-fit ​​part 2124 is a protrusion structure or elastic buckle provided on the second housing 2122 that matches the first snap-fit ​​part 2123. The principle of disassembly and assembly is the same as described above, and will not be repeated here.

[0055] Furthermore, the first snap-fit ​​portion 2123 includes a snap-fit ​​block, and the second snap-fit ​​portion 2124 includes a snap-fit ​​interface. The snap-fit ​​block is used to snap into the snap-fit ​​interface when the second housing 2122 covers the first housing 2121. At least one of the end wall of the snap-fit ​​interface and the snap-fit ​​block is provided with a second guide surface 2125. When the snap-fit ​​interface is close to the snap-fit ​​block, the second guide surface 2125 guides the snap-fit ​​block to snap into the snap-fit ​​interface.

[0056] Specifically, in this embodiment, the first snap-fit ​​part 2123 is configured as a snap-fit ​​block, while the second snap-fit ​​part 2124 is configured as a snap-fit ​​interface that matches the snap-fit ​​block. When the second housing 2122 needs to be covered onto the first housing 2121, the snap-fit ​​block only needs to be aligned with the snap-fit ​​interface and a slight pressure applied, and the snap-fit ​​block can be snapped into the snap-fit ​​interface to complete the initial fixation of the two housings. No additional tools are required, and the operation is convenient.

[0057] In addition, when manually connecting the first housing 2121 and the second housing 2122, it is difficult for the user to completely align the snap-fit ​​block with the card interface. The snap-fit ​​block is prone to direct collision with the end wall of the card interface, resulting in failure to snap in smoothly. The position needs to be adjusted repeatedly, which is inconvenient. Therefore, in this embodiment, a second guide surface 2125 (e.g., a slope or arc surface) is provided at least at one location on the end wall of the card interface and the snap-fit ​​block. During assembly, when the snap-fit ​​block is close to the card interface, even if there is a slight misalignment, the snap-fit ​​block will first contact the second guide surface 2125 and automatically adjust its position along the tilt angle of the second guide surface 2125, or smoothly transition along the curved surface of the arc surface and gradually slide into the card interface. The whole process does not require the user to deliberately calibrate the alignment, which improves the smoothness of assembly and reduces the difficulty of operation.

[0058] It should be noted that the second guide surface 2125 can be set separately on the outer periphery of the card block or on the end wall of the card interface; alternatively, matching second guide surfaces 2125 can be set on the outer periphery of the card block and the end wall of the card interface respectively (e.g., the card block is provided with a slope and the card interface end wall is provided with a corresponding slope to form bidirectional guidance). Users can set it according to their actual needs.

[0059] Furthermore, the grinding device includes a mounting base 40, on which the grinding base 10 is mounted. The mounting base 40 has a mounting groove 41 and a mounting opening 42. One end of the powder outlet pipe 21 is connected to the grinding base 10, and the other end of the powder outlet pipe 21 extends into the mounting groove 41. The powder baffle 22 passes through the mounting opening 42. In addition, the powder baffle 22 has a through-slot section 226. After the ion generator 30 is placed in the mounting groove 41, the electrode end 31 can extend into the powder outlet chamber 221 through the through-slot section 226.

[0060] Specifically, the grinding base 10 is directly fixed to the mounting base 40 as the mounting foundation. The mounting groove 41 provides assembly space for the powder outlet pipe 21 and the powder baffle 22. During installation, one end of the powder outlet pipe 21 is aligned with the grinding base 10, and the other end extends into the mounting groove 41, providing support for both the powder outlet pipe 21 and the grinding base 10. The powder baffle 22 is fixed by passing through the mounting port 42. At this point, the outer periphery of the powder baffle 22 is restricted by the end wall of the mounting port 42, allowing the powder baffle 22 to cooperate with the end of the powder outlet pipe 21 to form a closed powder outlet cavity 221, while its displacement is restricted by the mounting base 40. This reduces problems such as positional shifts caused by individual component fixing (e.g., shaking of the powder outlet pipe 21, misalignment of the powder baffle 22), and reduces issues such as poor powder outlet and powder overflow caused by loose components.

[0061] In addition, the ion generator 30 is placed in the mounting groove 41 so that it can be close to the outside of the powder baffle 22 or the powder outlet pipe 21. During installation, the ion generator 30 can be connected to the outer periphery of the powder baffle pipe or the outer periphery of the powder baffle 22. After installation, the electrode 31 does not need to extend a long distance to reach into the powder outlet chamber 221 through the through-slot section 226. This makes it easier for the electrode 31 to be inserted into the through-slot section 226 on the powder baffle 22. The electrode 31 is positioned by the through-slot section 226, which reduces the risk of the electrode 31 shaking and reduces the assembly difficulties caused by the electrode being too long, thus improving convenience.

[0062] It should be noted that during installation, the inner diameter of the through-groove section 226 matches the electrode end 31, allowing the electrode end 31 to extend into the through-groove section 226 and be limited by the groove wall of the through-groove section 226; similarly, the inner diameter of the mounting port 42 matches the outer diameter of the powder baffle 22, allowing the powder baffle 22 to be installed in the mounting port 42, and the end wall of the mounting port 42 can effectively limit the powder baffle 22, so that the powder outlet pipe 21 and the powder baffle 22 are more stable after installation.

[0063] Furthermore, the grinding base 10 is provided with a cutter head mechanism 12 and a drive mechanism 13. The cutter head mechanism 12 is rotatably mounted on the grinding chamber 11, and the drive mechanism 13 is used to drive the cutter head mechanism 12 to rotate.

[0064] Specifically, during assembly, the blade mechanism 12 is rotatably mounted inside the grinding chamber 11. The drive mechanism 13 (such as a suitable drive motor) provides power to it through transmission components (such as gear sets and drive shafts) so that the blade can rotate at a stable speed and high speed. When beans enter the grinding chamber 11, the sharp teeth of the blade can quickly cut and crush the beans, completing the grinding process.

[0065] It should be noted that the blade mechanism 12 in this embodiment is existing technology. Specifically, it can adopt a combination structure of a moving blade and a fixed blade rotating relative to each other, with their centers aligned and their edges forming an annular grinding gap. During assembly, the moving blade is rigidly connected to the drive mechanism 13 via a transmission shaft and rotates synchronously at high speed with the drive motor; the fixed blade is fixed to the inner wall of the grinding chamber 11, and its tooth direction forms an intersecting angle with the tooth of the moving blade. When beans fall into the grinding gap between the two blades, they are crushed by the combined action of the high-speed rotating moving blade and the fixed blade.

[0066] Example 2, See Figures 11 to 12The invention discloses a coffee machine including the grinding device of embodiment 1. The grinding device is installed on the body 50 of the coffee machine. Since a dust baffle 22 is set at the outlet of the powder outlet tube 21 and the electrode of the ion generator 30 is extended into the dust baffle 22, the powder ground by the grinding chamber 11 can fall naturally along the inner wall of the powder outlet tube 21 to the outlet of the powder outlet tube 21, and then fall directly into the independent powder outlet chamber 221 formed by the dust baffle 22. The dust baffle 22 constrains the powder, reduces the risk of powder diffusion, reduces the problem of powder directly flying into the coffee machine body 50 or the surrounding environment, and thus reduces the problem of powder pollution.

[0067] In addition, since the electrode 31 does not extend directly into the powder outlet tube 21, the problem of physical interference to the natural falling path of the powder flow caused by the electrode 31 extending directly into the powder outlet tube 21 is avoided. At the same time, the relatively closed space formed by the powder baffle 22 can constrain the ions and the powder flow, so that the ions released by the electrode 31 are concentrated on the falling powder flow at the outlet, further reducing the problems of powder flying and powder adsorption into the pipe caused by static electricity during the operation of the coffee machine.

[0068] It should be noted that the other structural features of the coffee machine are existing technologies and will not be described in detail here.

[0069] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A grinding device, characterized in that, include: A grinding stand, wherein the grinding stand is provided with a grinding chamber; A powder channel assembly includes a powder outlet pipe and a powder baffle. The powder outlet pipe has a powder outlet channel with an inlet and an outlet, the inlet being connected to the grinding chamber. The powder baffle extends circumferentially along the outlet and surrounds the outlet. The powder baffle has a powder outlet cavity that communicates with the outlet. An ion generator is installed on the outside of the powder channel assembly. The ion generator is provided with an electrode that extends into the powder outlet chamber and is located near the outlet.

2. The grinding apparatus as described in claim 1, characterized in that, The powder outlet chamber is provided with a first baffle and a second baffle. The first baffle is located near the outlet, and the second baffle is spaced apart from the first baffle to form an installation gap. The electrode end extends into the installation gap. The first baffle is provided with a through hole, and the installation interval is connected to the powder outlet cavity through the through hole; the through hole is arranged correspondingly to the electrode end.

3. The grinding apparatus as described in claim 1, characterized in that, The inner diameter of the powder outlet cavity is D, and the inner diameter of the powder outlet channel is d, where D > d.

4. The grinding apparatus as described in claim 3, characterized in that, The powder shield is provided with a first guide surface, which is connected to the outlet, and the other end of the first guide surface forms the cavity wall of the powder outlet chamber.

5. The grinding apparatus as described in claim 1, characterized in that, The powder outlet pipe includes a first pipe section and a second pipe section. One end of the first pipe section is connected to the grinding chamber, and the other end of the first pipe section is detachably connected to the second pipe section. The powder outlet channel is formed within the first pipe section and the second pipe section. The inlet is located in the first pipe section, and the outlet is located in the second pipe section.

6. The grinding apparatus as described in claim 5, characterized in that, The first pipe segment includes a first housing and a second housing. The first housing is connected to the grinding base, and the second housing is sealed to the first housing and forms the first pipe segment. The first housing is provided with a first snap-fit ​​portion, and the second housing is provided with a second snap-fit ​​portion; the first snap-fit ​​portion and the second snap-fit ​​portion are engaged and connected.

7. The grinding apparatus as described in claim 6, characterized in that, The first snap-fit ​​portion includes a snap-fit ​​block, and the second snap-fit ​​portion includes a snap-fit ​​interface. The snap-fit ​​block is used to snap onto the snap-fit ​​interface when the second housing is sealed onto the first housing. The end wall of the card interface and at least one of the card contact block are provided with a second guide surface, which is used to guide the card contact block to engage with the card interface when the card interface is close to the card contact block.

8. The grinding apparatus according to any one of claims 1-7, characterized in that, The grinding device includes a mounting base, on which the grinding base is mounted; the mounting base has a mounting groove, and the mounting groove has a mounting opening; one end of the powder outlet pipe is connected to the grinding base, and the other end of the powder outlet pipe extends into the mounting groove; the powder baffle is inserted through the mounting opening. The powder shield is provided with a through-groove section, the ion generator is located in the mounting groove, and the electrode end extends into the powder outlet chamber through the through-groove section.

9. The grinding apparatus according to any one of claims 1-7, characterized in that, The grinding base is provided with a cutter head mechanism and a driving mechanism. The cutter head mechanism is rotatably mounted in the grinding chamber, and the driving mechanism is used to drive the cutter head mechanism to rotate.

10. A coffee machine, characterized in that, Includes the grinding apparatus as described in any one of claims 1-9.

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