A bean grinder coffee machine with self-cleaning function

Abstract

The application discloses a coffee grinder with a self-cleaning function, which comprises a grinding device and a material dropping channel. The grinding device comprises a grinding seat, a grinding cavity is arranged in the grinding seat, an outer conical cutter assembly and an inner conical cutter assembly are assembled in the grinding cavity, a powder passing channel is arranged on the grinding seat, the powder passing channel is communicated with the grinding cavity and the material dropping channel, the material dropping channel comprises a powder outlet, a piston is slidably arranged in the material dropping channel, a soft rubber sealing ring is arranged on the outer periphery of the piston, the soft rubber sealing ring is in sealing contact with the inner wall of the material dropping channel, the piston and the soft rubber sealing ring are close to or away from the powder outlet, the powder outlet is communicated with a ring-shaped sealing piece, and the soft rubber sealing ring is in sealing contact with the ring-shaped sealing piece. Through the sliding of the soft rubber sealing ring and the sealing contact with the inner wall of the material dropping channel, the coffee powder in the material dropping channel can be scraped off, the self-cleaning of the material dropping channel is realized, the residual problem of the coffee powder is effectively solved, and through the cooperation of the ring-shaped sealing piece and the soft rubber sealing ring, the brewing steam is prevented from entering the material dropping channel, and the self-cleaning function is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coffee machines, in particular to a bean grinder coffee machine with self-cleaning function. BACKGROUND

[0002] Coffee is a kind of beverage that people often drink in daily life, and the appearance of the bean grinder coffee machine enables people to conveniently obtain fresh coffee. The bean grinder coffee machine comprises a grinding device and a material falling channel in communication, the grinding device is provided with an outer cone cutter assembly and an inner cone cutter assembly, the outer cone cutter assembly and the inner cone cutter assembly cooperate to grind coffee beans to form coffee powder, the coffee powder enters the material falling channel through a powder passing channel, and then enters a brewing device from the material falling channel to be brewed. There is coffee powder residue in the material falling channel of most bean grinder coffee machines on the market to varying degrees. After accumulation for a long time, the coffee powder residue in the material falling channel not only affects the quality of coffee, but also blocks the material falling channel, increases the risk of damage to the whole bean grinder coffee machine, and the problem is very serious. In recent years, targeted measures have appeared on the market, such as opening a through hole on the material falling channel, hoping that when the coffee powder is blocked, it can be diverted to ensure safety, and adding a water pipe to flush the coffee powder in the material falling channel, but none of them effectively solves the problem and cannot be popularized on the market.

[0003] Therefore, it is urgent to design a bean grinder coffee machine with self-cleaning function to effectively solve the problem of coffee powder residue. SUMMARY

[0004] In order to solve the above problems of the prior art, the purpose of the present application is to provide a bean grinder coffee machine with self-cleaning function, which can clean the material falling channel and effectively solve the problem of coffee powder residue in the material falling channel.

[0005] In order to achieve the above purpose, the present application designs a bean grinder coffee machine with self-cleaning function, which comprises a grinding device and a material falling channel in communication, the grinding device comprises a grinding seat, the grinding seat is provided with a grinding cavity, the grinding cavity is assembled with an outer cone cutter assembly and an inner cone cutter assembly, the outer cone cutter assembly and the inner cone cutter assembly cooperate to grind the material to be ground, the grinding seat is provided with a powder passing channel, the powder passing channel is in communication with the grinding cavity and the material falling channel, the material falling channel comprises a powder outlet, the center line of the powder outlet is perpendicular to the center line of the powder passing channel, a piston is slidably arranged in the material falling channel, a soft rubber sealing ring is arranged on the outer periphery of the piston, the soft rubber sealing ring is in sealing contact with the inner wall of the material falling channel, and the piston drives the soft rubber sealing ring to move together along the material falling channel to approach or move away from the powder outlet.

[0006] Further, the soft rubber seal ring slides with the piston between the first position and the second position, when the soft rubber seal ring is in the first position, the piston is away from the powder outlet than the powder channel, when the soft rubber seal ring is in the second position, the soft rubber seal ring is located in the powder outlet.

[0007] Further, the blanking channel is provided with a fixed seat connected with one end of the powder outlet, the fixed seat is provided with an annular sealing element, the annular sealing element is communicated with the powder outlet, when the soft rubber seal ring is in the second position, the soft rubber seal ring is partially located in the annular sealing element and in sealing contact with the annular sealing element.

[0008] Further, the grinding cavity is also provided with a powder cleaning assembly, the powder cleaning assembly includes a base, the base is coaxially arranged with the inner conical cutter assembly and rotates synchronously, the base is arranged below the outer conical cutter assembly and the inner conical cutter assembly, the outer periphery of the base is provided with a plurality of soft rubber sheets, the soft rubber sheets protrude from the outer periphery of the base and abut against the inner wall of the grinding cavity, the soft rubber sheets rotate synchronously with the base, and the powder channel is arranged between the base and the outer periphery of the soft rubber sheets.

[0009] Further, the base end face of the inner conical cutter assembly is provided with a plurality of radial ribs, the radial ribs are correspondingly arranged with the soft rubber sheets, or the radial ribs are staggered with the soft rubber sheets.

[0010] Further, the base is provided with a coaxially arranged connecting seat, and the connecting seat is detachably assembled with the inner conical cutter assembly.

[0011] Further, the radial ribs extend radially from the outer periphery of the connecting seat and approach the inner wall of the grinding cavity.

[0012] Further, the base is provided with a clamping groove, the soft rubber sheet includes a clamping portion and an extending portion, the clamping portion is clamped in the clamping groove, and the extending portion protrudes from the base and abuts against the inner wall of the grinding cavity.

[0013] Further, the thickness of the extending portion gradually decreases from one end close to the clamping portion to one end away from the clamping portion.

[0014] Further, the grinding cavity is provided with an annular support, the powder channel transversely penetrates the annular support and the grinding seat, the outer periphery of the outer conical cutter assembly is provided with a sealing ring, the sealing ring is in interference fit with the annular support, the base is arranged below the sealing ring, and the soft rubber sheet abuts against the inner wall of the annular support.

[0015] From the above technical scheme can be seen, the present application is through in the blanking passage slide piston and soft rubber seal ring, and the soft rubber seal ring and blanking passage inner wall sealing contact, can to the coffee powder in blanking passage remaining scraping, make the coffee powder remaining together into brewing device, play the cleaning effect, effectively solve the coffee powder remaining problem of blanking passage.

[0016] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0018] Figure 1 is the structure diagram of the grinding device and blanking passage when the soft rubber seal ring is in the first position.

[0019] Figure 2 is another angle structure diagram of Figure 1 .

[0020] Figure 3 is the explosion diagram of Figure 1 .

[0021] Figure 4 is the further explosion diagram of Figure 3 .

[0022] Figure 5 is the structure diagram of the motor, swing piece, piston and soft rubber seal ring after assembly in Figure 1 .

[0023] Figure 6 is the explosion diagram of Figure 5 .

[0024] Figure 7 is the explosion diagram of the outer cone knife assembly, inner cone knife assembly, seal ring and powder cleaning assembly.

[0025] Figure 8 is the structure diagram of the grinding seat and blanking passage.

[0026] Figure 9 is another angle structure diagram of Figure 8 .

[0027] Figure 10 is another angle structure diagram of Figure 8 .

[0028] Figure 11 is a structural diagram of the powder cleaning assembly.

[0029] Figure 12 is a structural diagram of the powder cleaning assembly. Figure 11

[0030] Figure 13 is an exploded view of the powder cleaning assembly. Figure 12

[0031] Figure 14 is an exploded view of the fixing base and the ring-shaped sealing member.

[0032] Figure 15 is a structural diagram of the grinding device and the discharging channel when the soft sealing ring is in the second position.

[0033] Figure 16 is a structural diagram of the powder cleaning assembly. Figure 15

[0034] Figure 17 is an exploded view of the powder cleaning assembly. Figure 15

[0035] Figure 18 is a further exploded view of the powder cleaning assembly. Figure 17

[0036] Figure 19 is a structural diagram of the motor, the swing member, the piston and the soft sealing ring after assembly. Figure 15

[0037] Figure 20 is an exploded view of the powder cleaning assembly. Figure 19

[0038] Figure 21 is a structural diagram of the grinding device and the discharging channel after assembly when the handle is in the vertical state.

[0039] Figure 22 is a structural diagram of the handle and the lock after assembly.

[0040] Figure 23 is an exploded view of the powder cleaning assembly. Figure 22 Embodiment

[0041] The exemplary embodiments will be described in detail herein below with reference to the drawings. In the following description, unless otherwise indicated, like numbers in the different drawings represent similar or identical elements. The embodiments described in the following exemplary embodiments are not meant to represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0042] ​​​​​​​​The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in the present application and the following claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "and / or," as used herein, refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0043] It is to be understood that, although the terms first, second, third, etc. can be used herein to describe various information, the information should not be limited by these terms. These terms are only used to distinguish one piece of information from another. For example, a first information could be termed a second information, and, similarly, a second information could be termed a first information without departing from the scope of the present application. As used herein, the term "if' can be construed to mean "when" or "upon" or "in response to determining" terms that indicate some manner of correlation or relation.

[0044] One kind of self-cleaning function's coffee grinder of the present application is explained in detail below. The features in the following examples and embodiments can be combined with each other without conflict.

[0045] Please refer to Figures 1-21 The self-cleaning function's coffee grinder of the present application includes a grinding device 1, a material falling channel 2 and a brewing device, the grinding device 1 is communicated with the material falling channel 2, the grinding device 1 is used for grinding coffee beans to form coffee powder and sending coffee powder into the material falling channel 2, coffee powder enters the brewing device through the material falling channel 2 to brew and form fresh coffee, the specific operation mode of the coffee grinder is the same as the prior art, which will not be repeated here.

[0046] The grinding device 1 includes a grinding seat 3, the grinding seat 3 includes a bottom 4 and a side 5, the side 5 is annular, the side 5 and the bottom 4 cooperate to form an open upper end grinding cavity 6, an outer conical cutter assembly 7 and an inner conical cutter assembly 8 are assembled in the grinding cavity 6, the outer conical cutter assembly 7 and the inner conical cutter assembly 8 cooperate to grind the material to be ground, the cooperation mode between the outer conical cutter assembly 7 and the inner conical cutter assembly 8 is the same as the prior art, which will not be repeated here.

[0047] The side 5 is provided with a powder passing channel 9, the lower end of the powder passing channel 9 is flush with the upper end of the bottom 4, so that the coffee powder in the grinding cavity 6 can be completely discharged from the powder passing channel 9.

[0048] The grinding cavity 6 is also provided with an annular support 10 extending upward from the bottom 4, the upper end of the annular support 10 is provided with a plurality of notches 11, the annular support 10 is provided with a plurality of clamping holes 12, the notches 11 are arranged above the clamping holes 12, the notches 11 are preferably staggered with the clamping holes 12, the powder passing channel 9 transversely penetrates the annular support 10 and the side 5, the powder passing channel 9 is used to connect the inside of the annular support 10 and the powder falling channel 2, and the powder passing channel 9 is not connected with the gap between the annular support 10 and the side 5.

[0049] The powder falling channel 2 includes a powder outlet 13, the center line of the powder outlet 13 is perpendicular to the center line of the powder passing channel 9, in the embodiment, the powder falling channel 2 is vertically arranged, the powder outlet 13 is arranged at the lower end of the powder falling channel 2, and the powder passing channel 9 is arranged at the side of the powder falling channel 2.

[0050] The piston 14 is slidably arranged in the powder falling channel 2, the outer periphery of the piston 14 is provided with a soft rubber sealing ring 15, the soft rubber sealing ring 15 is in sealing contact with the inner wall of the powder falling channel 2, and the piston 14 drives the soft rubber sealing ring 15 to slide along the powder falling channel 2 to approach or move away from the powder outlet 13.

[0051] Specifically, the soft rubber sealing ring 15 slides with the piston 14 between the first position and the second position, when the soft rubber sealing ring 15 is located at the first position, the piston 14 is farther away from the powder outlet 13 than the powder passing channel 9, that is, the piston 14 and the soft rubber sealing ring 15 are located above the powder passing channel 9, when the soft rubber sealing ring 15 is located at the second position, the soft rubber sealing ring 15 penetrates into the powder outlet 13, in this way, through the sealing contact between the soft rubber sealing ring 15 and the inner wall of the powder falling channel 2, the sliding of the soft rubber sealing ring 15 can scrape off all the coffee powder remaining on the inner wall of the powder falling channel 2, effectively solving the problem of coffee powder remaining in the powder falling channel 2, not only ensuring the quality of coffee brewed by the coffee grinder, but also reducing the damage risk of the whole machine and improving the service life of the whole machine.

[0052] The fixed seat 16 is connected to the lower end of the material channel 2, and the annular sealing element 17 is arranged in the fixed seat 16. The annular sealing element 17 is in communication with the powder outlet 13. When the soft rubber sealing ring 15 is in the second position, the soft rubber sealing ring 15 is partially arranged in the annular sealing element 17 and is in sealing contact with the annular sealing element 17. The coffee powder in the material channel 2 is discharged through the annular sealing element 17. The cooperation between the soft rubber sealing ring 15 and the annular sealing element 17 can reduce or avoid the water vapor generated by the brewing device from entering the material channel 2 as much as possible, and the sealing effect of the powder outlet 13 is better.

[0053] The material channel 2 is also provided with a driving device. The driving device drives the rotating shaft 18 to rotate forward and reverse reciprocatingly. The oscillating element 19 is fixedly arranged on the rotating shaft 18. The forward and reverse rotation of the rotating shaft 18 drives the oscillating element 19 to reciprocate. The oscillating element 19 is in movable connection with the piston 14 and drives the piston 14 to reciprocate axially along the material channel 2.

[0054] Specifically, the driving device is preferably a motor 20. The rotating shaft 18 is an output shaft of the motor 20. One end of the oscillating element 19 is fixedly connected with the rotating shaft 18. The other end of the oscillating element 19 is in movable connection with the piston 14 through a transmission rod 21.

[0055] A pair of spaced apart connecting seats 22 are arranged on the upper end of the piston 14. A guide through hole 23 is arranged on each connecting seat 22. The guide through hole 23 extends transversely, that is, the extension direction of the guide through hole 23 is perpendicular to the axial sliding direction of the piston 14. The transmission rod 21 extends through the guide through holes 23 at both ends and can slide transversely along the guide through holes 23. One end of the oscillating element 19 oscillates between the pair of connecting seats 22. The oscillating element 19, the transmission rod 21 and the rotating shaft 18 are all arranged on the upper end of the piston 14. The space in the material channel 2 is not affected by the above components. The soft rubber sealing ring 15 can be sealed and adapted between the piston 14 and the material channel 2, improving the sealing effect between the soft rubber sealing ring 15, the material channel 2 and the piston 14, and effectively reducing or avoiding the steam generated by the brewing device from entering.

[0056] In the embodiment, the blanking channel 2 is provided with a pair of upper and lower limit switches 24, the swinging member 19 is provided with a pair of contact blocks 25 on both sides of the end connected with the transmission rod 21, so that the swinging member 19 is T-shaped, the contact blocks 25 on both sides of the swinging member 19 can contact with the upper and lower limit switches 24 respectively during the swinging process, and the limit switches 24 are linked with the motor 20. When the soft rubber sealing ring 15 is located at the first position, the contact block 25 on the upper side of the swinging member 19 contacts with the upper limit switch 24, and when the soft rubber sealing ring 15 is located at the second position, the contact block 25 on the lower side of the swinging member 19 contacts with the lower limit switch 24.

[0057] In the embodiment, in order to prevent the axial sliding of the piston 14 in the blanking channel 2 from being deviated laterally, a pair of sliding grooves 39 are arranged on the outer periphery of the piston 14, and a pair of guide blocks 40 are arranged in the blanking channel 2, the guide blocks 40 are matched with the sliding grooves 39, the piston 14 is slid in the blanking channel 2 through the matching of the guide blocks 40 and the sliding grooves 39, and the guide blocks 40 and the sliding grooves 39 are arranged above the soft rubber sealing ring 15.

[0058] The grinding cavity 6 is also provided with a powder cleaning assembly 26, the powder cleaning assembly 26 includes a base 27, the base 27 is circular, the base 27 is coaxially arranged with the inner conical knife assembly 8 and rotates synchronously, the base 27 is arranged directly below the outer conical knife assembly 7 and the inner conical knife assembly 8, a plurality of soft rubber sheets 28 are arranged on the outer periphery of the base 27, the soft rubber sheets 28 extend out of the base 27 and abut against the inner circumferential wall of the annular support 10, the soft rubber sheets 28 rotate synchronously with the base 27, and the powder passing channel 9 is arranged outside the base 27 and the soft rubber sheets 28. The coffee powder formed after the cooperation of the outer conical knife assembly 7 and the inner conical knife assembly 8 falls on the end face of the base 27, and then is transferred to the space formed by the annular support 10, the bottom 4 and the outer periphery of the base 27 under the centrifugal force of the high-speed rotation of the base 27, and then is cleaned by the wind brought by the high-speed rotation of the soft rubber sheets 28 and the cleaning of the soft rubber sheets 28, so that the coffee powder in the grinding cavity 6 can be conveniently swept into the blanking channel 2.

[0059] In the embodiment, the base 27 is provided with a clamping groove 29, the soft rubber sheet 28 includes a clamping portion 30 and an extending portion 31, the clamping portion 30 is clamped in the clamping groove 29, and the extending portion 31 extends out of the clamping groove 29 and abuts against the inner circumferential wall of the annular support 10, wherein the thickness of the extending portion 31 gradually decreases from the end close to the clamping portion 30 to the end away from the clamping portion 30.

[0060] Due to the elasticity of the soft rubber sheet 28, during high-speed rotation, the end of the protruding part 31 can extend into the powder channel 9 and rotate at high speed in the powder channel 9, further improving the cleaning effect of the coffee powder.

[0061] In this embodiment, the soft rubber sheet 28 also contacts the upper end of the bottom 4 to avoid the residue of coffee powder in the grinding cavity 6 as much as possible.

[0062] The end face of the base 27 directly opposite the inner cone cutter assembly 8 is provided with a plurality of radial ribs 32, which are arranged correspondingly or staggered with the soft rubber sheet 28. In this embodiment, the radial ribs 32 are arranged correspondingly with the soft rubber sheet 28, and the radial ribs 32 and the soft rubber sheet 28 are uniformly distributed according to the shaft of the base 27.

[0063] The base 27 is provided with a coaxially arranged connecting seat 33, which is detachably assembled with the inner cone cutter assembly 8. In this embodiment, the connecting seat 33 is provided with a plurality of insertion columns 34, the inner cone cutter assembly 8 is arranged on the connecting seat 33, the same connecting shaft is arranged in the base 27, the connecting seat 33 and the inner cone cutter assembly 8, the insertion columns 34 are uniformly distributed around the connecting shaft and inserted into the inner cone cutter assembly 8, and the lower end of the base 27 is provided with a connecting piece connected with the driving device and extending out of the grinding cavity 6. Through the cooperation of the insertion columns 34 and the inner cone cutter assembly 8, the detachable assembly between the connecting seat 33 and the inner cone cutter assembly 8 is realized, and the synchronous high-speed rotation of the base 27 and the inner cone cutter assembly 8 is ensured.

[0064] In this embodiment, the radial ribs 32 extend radially from the outer periphery of the connecting seat 33, and part of the radial ribs 32 are exposed outside the base 27 and close to the annular support 10. In this way, the radial ribs 32 can form radial wind when the base 27 rotates at high speed, so as to sweep the coffee powder on the end face of the base 27 to the outer periphery of the base 27 as much as possible. The radial wind generated by the radial ribs 32 exposed outside the base 27 can make the coffee powder on the outer periphery of the base 27 easily swept into the dropping channel 2 by the radial wind, and the clamping groove 29 extends from the base 27 to the outer end of the radial rib 32.

[0065] In this embodiment, the height of the powder channel 9 is greater than or equal to the height from the upper end of the radial rib 32 to the upper end of the bottom 4.

[0066] The outer conical cutter assembly 7 is peripherally sleeved with a sealing ring 35, which is close to the lower end of the outer conical cutter assembly 7, and is in interference fit with the annular support 10. The base 27, the soft rubber sheet 28 and the radial rib 32 are all arranged below the sealing ring 35, i.e. the powder cleaning assembly 26 is arranged below the sealing ring 35.

[0067] In this embodiment, the sealing ring 35 comprises a body 36, a positioning block 37 and a clamping block 38 arranged peripherally on the body 36. The positioning block 37 is adapted to the notch 11, and the clamping block 38 is adapted to the clamping hole 12. When the sealing ring 35 is in interference fit with the annular support 10, the body 36 is in sealing contact with the inner circumferential wall of the annular support 10, the positioning block 37 is clamped in the notch 11, and the clamping block 38 is clamped in the clamping hole 12. The positioning block 37 and the notch 11 are both T-shaped. In this way, the coffee powder that falls downward after the outer conical cutter assembly 7 and the inner conical cutter assembly 8 are ground cannot run out from the gap between the outer conical cutter assembly 7 and the annular support 10, thereby reducing the waste of coffee powder.

[0068] The coffee grinder further comprises a control panel electrically connected with the motor 20, the limit switch 24, the brewing device and a driving device for driving the inner cone cutter assembly 7 and the base 27 to rotate at high speed.After the coffee beans are put into the grinding cavity 6, the control panel starts the driving device, which drives the inner conical cutter assembly 7 and the base 27 to rotate at high speed. The outer conical cutter assembly 7 and the inner conical cutter assembly 8 grind the coffee beans to form coffee powder, which falls on the end face of the base 27. Under the action of the centrifugal force of the base 27 and the radial wind generated by the radial ribs 32, the coffee powder on the end face of the base 27 moves between the outer periphery of the base 27 and the annular support 10, and then moves into the powder channel 9 under the action of the soft rubber sheet 28 and the radial ribs 32, and finally moves into the dropping channel 2. When the grinding is completed, the control panel drives the motor 20 to rotate, which drives the rotating shaft 18 to rotate, the rotating shaft 18 drives the swing piece 19 to swing downward, the transmission rod 21 slides along the guide through hole 23 from one end to the other end, and the soft rubber sealing ring 15 and the piston 14 slide downward along the dropping channel 2 from the first position. The soft rubber sealing ring 15 scrapes the residual coffee powder on the inner wall of the dropping channel 2, so that the residual coffee powder falls into the brewing device through the powder outlet 13 and the annular sealing piece 17. When the contact block 25 on the lower side of the swing piece 19 contacts the limit switch 24 on the lower side, the control panel stops the motor 20 from running. At this time, the soft rubber sealing ring 15 penetrates the powder outlet 13 and partially contacts the annular sealing piece 17, so that the powder outlet 13 is closed. Since the soft rubber sealing ring 15 is in sealing contact with the dropping channel 2, the soft rubber sealing ring 15 scrapes the inner wall of the dropping channel 2, so that the dropping channel 2 is cleaned as before and will not be blocked. This not only ensures the quality of the coffee obtained by the coffee grinder, but also reduces the risk of damage to the grinder. Then the control panel controls the brewing device to run. Since the soft rubber sealing ring 15 partially contacts the annular sealing piece 17, it reduces or avoids the steam generated by the brewing device from entering the dropping channel 2, thereby reducing the risk of damage to the grinder and the dropping channel 2 caused by steam. After the operation of the brewing device is completed, the control panel controls the motor 20 to rotate in the opposite direction, which drives the rotating shaft 18 to swing upward, the swing piece 19 drives the transmission rod 21 to slide from the other end to one end, and the piston 14 slides axially upward, which drives the soft rubber sealing ring 15 to slide upward. When the contact block 25 on the upper side of the swing piece 19 contacts the limit switch 24 on the upper side, the control panel controls the motor 20 to stop running. The soft rubber sealing ring 15 returns to the first position, waiting for the next operation of the coffee grinder.

[0069] Please refer to Figure 1 ,7 , 9, 15, 21~23, in order to better clean the grinding cavity 6, the outer cone cutter assembly 7 and the grinding cavity 6 can be disassembled. Specifically, the outer cone cutter assembly 7 is provided with a handle 41 rotating on it, the handle 41 is connected with a lock catch 42 at both ends, the lock catch 42 rotates with the handle 41, the inside of the side part 5 is provided with a lock slot 43, the lock slot 43 is matched with the lock catch 42, when the handle 41 is in a horizontal state, the lock catch 42 is locked in the lock slot 43, the outer cone cutter assembly 7 is assembled in the grinding cavity 6, when the handle 41 is in a vertical state, the lock catch 42 can be separated from the lock slot 43, the outer cone cutter assembly 7 can be separated from the grinding cavity 6 upwards.

[0070] Further, the side 5 corresponding to the grinding cavity 6 is provided with a pair of grooves 44, the lock slot 43 is arranged in the groove 44, the lock slot 43 comprises a communication part 45 and a locking part 46, the communication part 45 is vertically arranged, the upper end of the communication part 45 is open, the lower end of the communication part 45 is communicated with the locking part 46, the locking part 46 is formed by extending transversely from the communication part 45, a pair of sliding blocks 47 is fixed on the outer periphery of the outer conical knife assembly 7, the sliding block 47 is matched with the groove 44, the sliding block 47 is provided with a limiting groove 48, the lock buckle 42 comprises a rotating block 49 and a connecting column 50 and a locking column 51 which are extended from the opposite sides of the rotating block 49, the rotating block 49 is elliptical and rotates and is arranged in the limiting groove 48, the connecting column 50 is provided with a through hole 52 which is coaxially arranged, the through hole 52 penetrates the rotating block 49, the end of the handle 41 is provided with a connecting block 53, the connecting block 53 is flat and is matched with the through hole 52, the connecting block 53 is inserted into the through hole 52, the locking column 51 is arranged staggered with the connecting column 50, that is, the locking column 50 is arranged staggered with the through hole 52, the locking column 50 is matched with the locking part 46, when the handle 41 is in a horizontal state, the locking column 50 is locked in the locking part 46, the outer conical knife assembly 7 cannot be directly separated from the grinding cavity 6 upward, the handle 41 is rotated to a vertical state, the rotating block 49 drives the locking column 51 to rotate to the communication part 45, the locking column 51 can slide relative to the communication part 45, the handle 41 is pulled to move upward to drive the outer conical knife assembly 7 to separate from the grinding cavity 6, then the sealing ring 35 is taken out, the inside of the grinding cavity 6 can be cleaned, after cleaning, the sealing ring 35 is assembled to the annular support 10, the outer conical knife assembly 7 is inserted into the grinding cavity 6, after the outer conical knife assembly 7 is inserted in place, the sealing ring 35 is sleeved on the outer periphery of the outer conical knife assembly 7, the locking column 51 abuts against the lower end of the communication part 45, then the handle 41 is rotated to a horizontal state, that is, the locking column 51 is locked in the locking part 46, the assembly of the outer conical knife assembly 7 and the grinding cavity 6 is realized.

[0071] Through the detachable assembly of the piston 14, the soft rubber sealing ring 15, the radial rib 33, the soft rubber sheet 28 and the outer conical knife assembly 7 and the grinding cavity 6, the material falling channel 2 and the grinding cavity 6 are very clean, the quality of coffee obtained by the coffee grinder and the service life thereof are ensured.

[0072] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A bean grinder coffee machine with self-cleaning function, comprising a grinder and a dropping channel in communication, the grinder comprising a grinder seat, the grinder seat being provided with a grinder cavity, the grinder cavity being assembled with an outer conical knife assembly and an inner conical knife assembly, the outer conical knife assembly and the inner conical knife assembly cooperating to grind a material to be ground, the grinder seat being provided with a powder passing channel, the powder passing channel being in communication with the grinder cavity and the dropping channel, the dropping channel comprising a powder outlet, characterized in that, The center line of the powder outlet is perpendicular to the center line of the powder channel, the powder outlet is arranged at the lower end of the powder channel, and the powder channel is arranged at the side of the powder channel. The piston is sleeved with a soft rubber sealing ring, the soft rubber sealing ring is in sealing contact with the inner wall of the powder channel, and the piston drives the soft rubber sealing ring to move along the powder channel to approach or move away from the powder outlet. The soft rubber sealing ring moves with the piston between the first position and the second position, when the soft rubber sealing ring is located at the first position, the piston is away from the powder outlet than the powder channel, and when the soft rubber sealing ring is located at the second position, the soft rubber sealing ring is arranged in the powder outlet.

2. The bean grinder coffee machine having a self-cleaning function according to claim 1, characterized in that, The powder channel is provided with a fixed seat connected with one end of the powder outlet, the fixed seat is provided with an annular sealing element, the annular sealing element is in communication with the powder outlet, and when the soft rubber sealing ring is located at the second position, the soft rubber sealing ring is located in the annular sealing element and in sealing contact with the annular sealing element.

3. The bean grinder coffee machine having a self-cleaning function according to claim 1, characterized in that, The grinding cavity is also provided with a powder cleaning assembly, the base is coaxially arranged with the inner conical cutter assembly and rotates synchronously, the base is arranged below the outer conical cutter assembly and the inner conical cutter assembly, a plurality of soft rubber sheets are arranged on the outer periphery of the base, the soft rubber sheets protrude from the outer periphery of the base and abut against the inner wall of the grinding cavity, the soft rubber sheets rotate synchronously with the base, and the powder channel is arranged at the periphery of the base and the soft rubber sheets.

4. The bean grinder coffee machine having a self-cleaning function according to claim 3, characterized in that, The base is provided with a connecting seat arranged coaxially, and the connecting seat is detachably assembled with the inner conical cutter assembly.

5. The bean grinder coffee machine having a self-cleaning function according to claim 4, characterized in that, The radial ribs extend radially from the outer periphery of the connecting seat and approach the inner wall of the grinding cavity.

6. The bean grinder coffee machine having a self-cleaning function according to claim 5, characterized in that, The base is provided with a clamping groove, the soft rubber sheet includes a clamping portion and a protruding portion, the clamping portion is clamped in the clamping groove, and the protruding portion protrudes from the base and abuts against the inner wall of the grinding cavity.

7. The bean grinder coffee machine having a self-cleaning function according to claim 3, wherein, The thickness of the protruding portion gradually decreases from one end close to the clamping portion to the other end away from the clamping portion.

8. The bean grinder coffee machine having a self-cleaning function according to claim 7, characterized in that, The grinding cavity is provided with an annular support, the powder channel transversely penetrates the annular support and the grinding seat, the outer conical cutter assembly is sleeved with a sealing ring, the sealing ring is in interference fit with the annular support, the base is arranged below the sealing ring, and the soft rubber sheet abuts against the inner wall of the annular support.

9. The bean grinder coffee machine having a self-cleaning function according to claim 3, wherein, ​

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