A bean grinder

Abstract

The present application relates to a kind of bean grinder, including grinder main body, grinder main body is equipped with the stirring cavity and the discharge seat being communicated with each other, the discharge seat is correspondingly positioned between left side wall and right side wall in and is equipped with the powder baffle for shielding coffee powder from left side wall to the right side wall, powder baffle is formed with left side wall, right side wall and stirring cavity spacing respectively, the outside adjacent position of discharge seat corresponding left side wall is equipped with the son part that makes discharge seat vibrate by knocking, son part is connected to be used to drive its reciprocating movement in the direction close to or away from discharge seat, coffee powder is not concentrated accumulation under the action of powder baffle in the position of coffee powder container corresponding right side wall in discharge seat, avoid when coffee powder container is closed, coffee powder spills from coffee powder container to outside, simultaneously, son part can make coffee powder attached on discharge seat separate from discharge seat by knocking discharge seat, avoid coffee powder accumulation in discharge seat or grinder main body and cause jam.

Description

Technical Field

[0001] This invention relates to the technical field of coffee grinders, and more specifically to a coffee grinder. Background Technology

[0002] With social development and the improvement of people's living standards and tastes, bean-based beverages are becoming increasingly popular among consumers. For example, coffee has become a fashionable drink and is widely favored by consumers. Coffee processing usually begins with grinding coffee beans into coffee powder.

[0003] After coffee beans are ground into coffee powder by a coffee grinder, the powder is discharged from the grinder's outlet and falls into the coffee powder container below the outlet. Because the grinder's blades rotate during the coffee powder discharge process, therefore... Figure 1 , Figure 2 As shown, when coffee powder leaves the blade and enters the outlet, it tends to move along the direction of the blade. Under the influence of this tendency, the coffee powder will first hit the side wall of the outlet and then bounce back to the other side of the outlet. This makes it easier for the coffee powder to accumulate in the coffee powder container on the other side of the outlet. When the user closes the coffee powder container, the coffee powder is likely to overflow from the outside of the coffee powder container.

[0004] Meanwhile, after coffee beans are ground into coffee powder by the grinder, they are discharged out through the grinder's outlet. Because coffee beans themselves have a certain oil content, after the grinder has been used for a long time, coffee powder tends to adhere to the area near the outlet and gradually accumulate, eventually causing blockage.

[0005] Therefore, further improvements are needed. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a coffee grinder that reduces the chance of coffee powder overflowing when the coffee powder container is closed, effectively preventing coffee powder and other bean powders from accumulating in the discharge seat or the main body of the grinder, and reducing the chance of the discharge seat becoming clogged.

[0007] The objective of this invention is achieved as follows:

[0008] A coffee grinder includes a grinder body with a mixing chamber and a discharge seat that are interconnected. The mixing chamber contains a grinding blade that grinds coffee beans by rotation. The discharge seat has a left side wall on the side facing the rotation direction of the grinding blade and a right side wall on the other side opposite the left side wall. A dust baffle is provided in the discharge seat at a position between the left and right sides to prevent coffee powder from drifting from the left side wall to the right side wall. The dust baffle forms a gap with the left side wall, the right side wall and the mixing chamber respectively. An oscillator is provided at an adjacent position on the outer side of the discharge seat corresponding to the left side wall, which vibrates the discharge seat when struck. The oscillator is connected to an oscillator drive mechanism for driving it to reciprocate in the direction of approaching or moving away from the discharge seat.

[0009] As a specific embodiment, one side of the powder baffle is integrally formed with the discharge seat, and the other side of the powder baffle extends toward the mixing chamber.

[0010] The powder baffle extends downward along the discharge seat, and the length of the downward extension of the powder baffle is approximately equal to the height of the mixing chamber.

[0011] The distance between the powder baffle and the left side wall is greater than the distance between the powder baffle and the right side wall, and the powder baffle is positioned adjacent to the left and right side walls at their midpoints.

[0012] As a specific embodiment, the vibrator drive mechanism includes a drive unit and a vibrator seat. The drive unit is connected to a first motor device that drives it to rotate. The first motor device is fixedly connected to the main body of the coffee grinder. The drive unit causes the vibrator to move away from the discharge seat through intermittent transmission connection with the vibrator. The vibrator seat is fixedly connected to the outside of the main body of the coffee grinder. The vibrator and the vibrator seat are concentrically arranged and movably connected. A return spring is connected between the vibrator seat and the vibrator to push the vibrator to move towards the discharge seat.

[0013] The drive unit is in the shape of a wheel and can rotate around its center position. Several protruding tooth blocks are distributed on the outer side of the drive unit. The vibrator is provided with a transmission block corresponding to the protruding tooth blocks. The circumferential movement trajectory of the protruding tooth blocks partially overlaps with that of the transmission block. The drive unit drives the protruding tooth blocks to move circumferentially so that the protruding tooth blocks and the transmission block are connected to each other and then separated.

[0014] As a specific embodiment, the convex tooth block has a first connecting surface and a second connecting surface. The first connecting surface is planar and the second connecting surface is arc-shaped. The second connecting surface is inclined towards the outer wall of the drive unit along the rotation direction of the convex tooth block. The drive unit drives the convex tooth block to rotate so that the first connecting surface and the second connecting surface are connected and engaged with the transmission block in sequence.

[0015] As a specific embodiment, the vibrator is provided with a protruding post at one end facing the discharge seat. The protruding post extends towards the discharge seat and is arc-shaped at one end. The discharge seat is provided with a striking platform corresponding to the protruding post, which extends towards the protruding post.

[0016] The striking platform is provided with a recessed portion corresponding to the protruding post. When the protruding post is connected and engaged with the striking platform, the protruding post extends at least partially into the recessed portion.

[0017] As a specific embodiment, the discharge seat is detachably connected to the main body of the coffee grinder. The outer side of the discharge seat is provided with mounting ears, which are connected and fixed to the main body of the coffee grinder by screws. The position where the vibrator strikes the discharge seat is located on the side of the discharge seat corresponding to the mounting ears facing away from the main body of the coffee grinder. The side of the discharge seat corresponding to the mounting ears facing the main body of the coffee grinder is provided with an outer locking part, and the main body of the coffee grinder is provided with an inner locking part corresponding to the outer locking part. The outer locking part and the inner locking part are interlocked.

[0018] As a specific embodiment, the upper side of the discharge seat is connected to a top cover, and the top cover is connected to a plasma generator for generating plasma into the inside of the discharge seat.

[0019] As a specific embodiment, the main body of the coffee grinder is fixedly connected to a second motor device and a fixed frame. The grinding blades include a first blade disc and a second blade disc. The second motor device is driven by an upper transmission disc. The upper transmission disc is fixedly connected to a transmission seat. The transmission seat is fixedly connected to the first blade disc. A lifting threaded mechanism is provided between the fixed frame and the transmission seat. The transmission seat rotates and drives the first blade disc to move up and down through the lifting threaded mechanism. The second motor device drives the upper transmission disc to make the transmission seat rotate relative to the fixed frame.

[0020] The transmission seat is provided with a limiting step at the position below the fixed frame. The maximum distance between the first cutter disc and the second cutter disc is equivalent to the maximum distance between the limiting step and the fixed frame. The fixed frame is provided with a clearance part at the position above the lifting thread mechanism. The maximum distance between the clearance part and the lifting thread mechanism is greater than the maximum distance between the limiting step and the fixed frame.

[0021] The second motor device is provided with a driving gear and a driven gear on the upper transmission disk. The driving gear and the driven gear mesh to form a gear mechanism. The second motor device is connected to the upper transmission disk through the gear mechanism. The maximum height at which the driving gear and the driven gear coincide in the horizontal direction is greater than the maximum distance between the limiting step and the fixing frame.

[0022] As a specific solution, the fixing frame is provided with a connecting base, and the connecting base is connected and fixed to the main body of the coffee grinder by a screw device. The motor device is a stepper motor or a servo motor.

[0023] The connecting base is at least partially covered by the vertical projection of the upper transmission disc.

[0024] The upper transmission disc has several hollow holes that extend through the upper and lower sides. The upper transmission disc can rotate so that the vertical projection of the hollow holes covers the position of the corresponding screw device on the connecting base.

[0025] As a specific embodiment, the second cutter disc is fixedly connected to a lower transmission disc, the lower transmission disc is connected to a cutter disc drive mechanism, and a powder outlet groove is formed between the lower side of the lower transmission disc and the mixing chamber. The powder outlet groove is located on the outside of the mixing chamber, and a first anti-powder accumulation slope is provided on the lower side of the powder outlet groove. The first anti-powder accumulation slope is inclined downward from the inside to the outside along the radial direction of the mixing chamber.

[0026] The outer periphery of the lower transmission disc is provided with a second anti-powder accumulation slope, which is inclined downward from the inside to the outside along the radial direction of the lower transmission disc.

[0027] The lower side of the lower drive disc is provided with an anti-leakage groove at the position between the powder outlet and the drive mechanism along the radial direction. The main body of the coffee grinder is provided with an anti-leakage protrusion corresponding to the anti-leakage groove. The anti-leakage protrusion and the anti-leakage groove are connected and cooperate to form an anti-leakage structure for preventing coffee powder from entering the drive mechanism from the powder outlet.

[0028] The lower side of the lower transmission disc is provided with a powder sweeping part corresponding to the position of the powder trough, and the powder sweeping part is adjacent to and cooperates with the first anti-powder accumulation inclined surface.

[0029] The beneficial effects of this invention are:

[0030] The coffee powder is prevented from accumulating on the right side wall of the coffee powder container below the outlet by the baffle plate, thus avoiding spillage when the coffee powder container is closed. At the same time, the vibrator can separate the coffee powder adhering to the outlet by tapping it, preventing the coffee powder from accumulating in the outlet or the main body of the grinder and causing blockage. Attached Figure Description

[0031] Figure 1 A cross-sectional view of a conventional coffee grinder. Figure 1 .

[0032] Figure 2 A cross-sectional view of a conventional coffee grinder. Figure 2 .

[0033] Figure 3 This is a cross-sectional view of an embodiment of the present invention. Figure 1 .

[0034] Figure 4 This is a cross-sectional view of an embodiment of the present invention. Figure 2 .

[0035] Figure 5 This is a cross-sectional view of an embodiment of the present invention. Figure 3 .

[0036] Figure 6 This is a cross-sectional view of an embodiment of the present invention. Figure 4 .

[0037] Figure 7 This is a cross-sectional view of an embodiment of the present invention. Figure 5 .

[0038] Figure 8 This is an exploded view of an embodiment of the present invention. Figure 1 .

[0039] Figure 9 This is an exploded view of an embodiment of the present invention. Figure 2 .

[0040] Figure 10 This is a schematic diagram of the structure of an embodiment of the present invention.

[0041] Figure 11 This is a schematic diagram of the structure of the discharge seat in an embodiment of the present invention. Figure 1 .

[0042] Figure 12 This is a schematic diagram of the structure of the discharge seat in an embodiment of the present invention. Figure 2 .

[0043] Figure 13 This is a schematic diagram of the transmission seat according to an embodiment of the present invention.

[0044] Figure 14 This is a schematic diagram of the structure of the cover in an embodiment of the present invention.

[0045] Figure 15 This is a schematic diagram of the structure of the fixing frame according to an embodiment of the present invention.

[0046] Figure 16 This is a schematic diagram of the transmission disc in an embodiment of the present invention.

[0047] Figure 17 This is a schematic diagram of the transmission disc structure in an embodiment of the present invention. Figure 1 .

[0048] Figure 18 This is a schematic diagram of the transmission disc structure in an embodiment of the present invention. Figure 2 .

[0049] Figure 19 This is a schematic diagram of the structure of the vibrator section in an embodiment of the present invention.

[0050] Figure 20 This is a schematic diagram of the structure of the oscillator driving mechanism in an embodiment of the present invention.

[0051] Figure 21 This is an enlarged view of embodiment A of the present invention.

[0052] Figure 22 This is an enlarged view of embodiment B of the present invention. Detailed Implementation

[0053] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0054] See Figures 1-22 This coffee grinder includes a main body 1, which has a mixing chamber 11 and a discharge seat 2 that are interconnected. The mixing chamber 11 contains a grinding blade that grinds coffee beans by rotating. The discharge seat 2 has a left side wall 21 on the side facing the rotation direction of the grinding blade, and a right side wall 22 on the other side of the discharge seat 2 opposite to the left side wall 21. A baffle plate 23 is provided in the discharge seat 2 at the position between the left side wall 21 and the right side wall 22 to prevent coffee powder from drifting from the left side wall 21 to the right side wall 22. The baffle plate 23 forms a gap with the left side wall 21, the right side wall 22 and the mixing chamber 11 respectively. Under the action of the baffle plate 23, the coffee powder will not accumulate in the coffee powder container below the discharge seat 2 at the position corresponding to the right side wall 22, thus preventing coffee powder from overflowing from the coffee powder container when the coffee powder container is closed.

[0055] The dispensing seat 2 is provided with a vibrator 3 at the adjacent position on the outer side of the left side wall 21, which causes the dispensing seat 2 to vibrate when struck. When the dispensing seat 2 is struck, its surface will vibrate, and the vibration will cause the coffee powder attached to the surface of the dispensing seat 2 to leave the dispensing seat 2 and fall downward.

[0056] The vibrator 3 is connected to a vibrator drive mechanism for driving it to reciprocate in the direction of approaching or moving away from the outlet seat 2. The vibrator 3 can separate the coffee powder attached to the outlet seat 2 from the outlet seat 2 by striking it, so as to avoid the coffee powder from accumulating in the outlet seat 2 or the main body of the grinder and causing blockage.

[0057] Furthermore, one side of the powder baffle 23 is integrally formed with the discharge seat 2, and the other side of the powder baffle 23 extends toward the mixing chamber 11, which simplifies the structure of the powder baffle 23, eliminates the need for additional assembly, and allows the powder baffle 23 to block more coffee powder.

[0058] The powder baffle 23 extends downward along the discharge seat 2. The length of the powder baffle 23 extending downward is equivalent to the height of the mixing chamber 11, which increases the covering area of ​​the powder baffle 23 and allows more coffee powder to be discharged downward into the discharge seat 2 under the action of the powder baffle 23.

[0059] The distance between the powder baffle 23 and the left side wall 21 is greater than the distance between the powder baffle 23 and the right side wall 22. The powder baffle 23 is positioned adjacent to the middle position between the left side wall 21 and the right side wall 22. After the coffee powder hits the powder baffle 23 and falls downward, it can be more concentrated and accumulate in the middle position between the corresponding left side wall 21 and right side wall 22, further reducing the chance of coffee powder overflowing from the left and right sides when the coffee powder container is closed.

[0060] Furthermore, the vibrator drive mechanism includes a drive unit 41 and a vibrator seat 42. The drive unit 41 is connected to a first motor device 43 that drives it to rotate. The first motor device 43 is fixedly connected to the main body 1 of the coffee grinder. The drive unit 41 is intermittently driven to the vibrator 3, causing the vibrator 3 to move away from the discharge seat 2. The drive unit 41 is also driven to the vibrator 3, causing the vibrator 3 to separate from the discharge seat 2.

[0061] The vibrator seat 42 is fixedly connected to the outside of the main body 1 of the coffee grinder. The vibrator part 3 is concentrically arranged and movably connected to the vibrator seat 42. A return spring 421 is connected between the vibrator seat 42 and the vibrator part 3 to push the vibrator part 3 to move in the direction close to the discharge seat 2. The vibrator part 3 makes a striking action on the discharge seat 2 through the return spring 421.

[0062] The drive unit 41 is in the shape of a wheel and can rotate around its center position. Several protruding tooth blocks 411 are distributed on the outer side of the drive unit 41. The vibrator 3 is provided with a transmission block 31 corresponding to the protruding tooth blocks 411. The circumferential movement trajectory of the protruding tooth blocks 411 partially overlaps with that of the transmission block 31. The drive unit 41 drives the protruding tooth blocks 411 to move circumferentially, so that the protruding tooth blocks 411 and the transmission block 31 are connected to each other and then separated. Each protruding tooth block 411 is connected and engaged with the vibrator 3 in sequence, so that the vibrator 3 can be intermittently connected to the drive unit 41.

[0063] Furthermore, the protruding tooth block 411 has a first connecting surface 4111 and a second connecting surface 4112. The first connecting surface 4111 is planar, which can increase the contact area between the protruding tooth block 411 and the transmission block 31, making it easier for the protruding tooth block 411 to drive the vibrator part 3 to move.

[0064] The second connecting surface 4112 is arc-shaped and is inclined towards the outer side wall of the drive part 41 along the rotation direction of the convex tooth block 411, so that the convex tooth block 411 separates from the transmission block 31 more smoothly and without jamming.

[0065] The drive unit 41 drives the toothed block 411 to rotate, so that the first connecting surface 4111 and the second connecting surface 4112 are connected and engaged with the transmission block 31 in sequence.

[0066] Furthermore, the vibrator 3 has a protruding post 32 at one end facing the discharge seat 2. The protruding post 32 extends towards the discharge seat 2, so that the force of the vibrator 3 can be concentrated on the discharge seat 2, thereby enhancing the vibration effect.

[0067] The end of the protrusion 32 facing the discharge seat 2 is arc-shaped. The discharge seat 2 is provided with a striking platform 24 corresponding to the protrusion 32. The striking platform 24 extends towards the protrusion 32, which can prevent the protrusion from damaging the discharge seat 2 due to striking the discharge seat 2.

[0068] Furthermore, the striking table 24 is provided with a recess 241 corresponding to the protrusion 32. When the protrusion 32 is connected and engaged with the striking table 24, the protrusion 32 extends at least partially into the recess 241. The recess 241 can improve the accuracy of the connection between the protrusion 32 and the striking table 24.

[0069] Furthermore, the discharge seat 2 is detachably connected to the main body 1 of the coffee grinder. The outer side of the discharge seat 2 is provided with mounting ears 25. The mounting ears 25 are connected and fixed to the main body 1 of the coffee grinder by screws. The position where the vibrator 3 strikes the discharge seat 2 is located on the side of the discharge seat 2 facing away from the main body 1, corresponding to the mounting ears 25. The side of the discharge seat 2 facing the main body 1, corresponding to the mounting ears 25, is provided with an outer locking part 26. The main body 1 of the coffee grinder is provided with an inner locking part 12 corresponding to the outer locking part 26. The outer locking part 26 and the inner locking part 12 are interlocked, which increases the stability of the connection between the discharge seat 2 and the main body 1 of the coffee grinder and prevents the discharge seat 2 from loosening due to long-term vibration.

[0070] Furthermore, an upper cover 5 is connected to the upper side of the dispensing seat 2, and a plasma generator 51 is connected to the upper cover 5 for generating plasma to the inside of the dispensing seat 2. The plasma can neutralize the static electricity carried by the coffee powder, so that the coffee powder does not clump together and does not fly everywhere.

[0071] Furthermore, the main body 1 of the coffee grinder is fixedly connected to a second motor device 6 and a fixed frame 61. The grinding blades include a first blade disc 71 and a second blade disc 72. The second motor device 6 is driven by an upper transmission disc 62, and the upper transmission disc 62 is fixedly connected to a transmission seat 63. The transmission seat 63 is fixedly connected to the first blade disc 71. A lifting threaded mechanism is provided between the fixed frame 61 and the transmission seat 63. The transmission seat 63 rotates and drives the first blade disc 71 to move up and down through the lifting threaded mechanism. The second motor device 6 drives the upper transmission disc 62 to make the transmission seat 63 rotate relative to the fixed frame 61.

[0072] When the motor rotates in the forward direction, the upper transmission disc 62 rotates in the reverse direction under the action of the motor. The upper transmission disc 62 drives the transmission seat 63 to rotate in the reverse direction. Under the action of the lifting thread mechanism, the transmission seat 63 drives the first cutter disc 71 to move upward, and the distance between the first cutter disc 71 and the second cutter disc 72 increases.

[0073] When the motor rotates in the reverse direction, the upper transmission disc 62 rotates in the forward direction under the action of the motor. The upper transmission disc 62 drives the transmission seat 63 to rotate in the forward direction. Under the action of the lifting thread mechanism, the transmission seat 63 drives the first cutter disc 71 to move downward, and the distance between the first cutter disc 71 and the second cutter disc 72 decreases.

[0074] The motor can drive the first cutter head 71 to move up and down according to the user's needs, so that the distance between the first cutter head 71 and the second cutter head 72 can be adjusted, thus allowing the grinder to adapt to the grinding needs of coffee beans of different sizes. Users can also obtain coffee powder particles of different sizes according to their taste requirements.

[0075] Furthermore, the transmission seat 63 is provided with a limiting step 631 at the position below the fixed frame 61. The maximum distance between the first cutter head 71 and the second cutter head 72 is equivalent to the maximum distance between the limiting step 631 and the fixed frame 61. The fixed frame 61 is provided with a clearance part 612 at the position above the lifting thread mechanism. The maximum distance between the clearance part 612 and the lifting thread mechanism is greater than the maximum distance between the limiting step 631 and the fixed frame 61. The clearance part 612 can prevent the fixed frame 61 from hindering the normal lifting and lowering movement of the transmission seat 63.

[0076] The second motor device 6 is provided with a driving gear 64 and a driven gear 621 on the upper transmission disk 62. The driving gear 64 and the driven gear 621 mesh to form a gear mechanism. The overall structure of the gear mechanism is simple, and the upper transmission disk 62 can also be effectively connected to the motor device when it moves up and down.

[0077] The second motor device 6 is connected to the upper transmission disk 62 via a gear mechanism. The maximum height at which the driving gear 64 and the driven gear 621 overlap in the horizontal direction is greater than the maximum distance between the limiting step 631 and the fixed frame 61, so as to prevent the driven gear 621 from disengaging from the driving gear 64 when the upper transmission disk 62 is moving up and down.

[0078] Furthermore, the mounting bracket 61 is provided with a connecting base 611, which is connected and fixed to the main body 1 of the coffee grinder by a screw device to ensure the connection stability between the mounting bracket 61 and the main body 1 of the coffee grinder.

[0079] The motor device is a stepper motor or a servo motor. Both stepper motors and servo motors can be controlled by the controller to control the angle and speed of the motor rotation, which can improve the accuracy of the lifting and lowering of the first cutter head 71. Moreover, when the stepper motor or servo motor does not receive instructions or the power supply is stopped, it will automatically lock the output shaft at the current position, so that the first cutter head 71 remains relatively stationary during the coffee bean grinding process.

[0080] Furthermore, the connecting base 611 is at least partially covered by the vertical projection of the upper transmission disk 62, which allows the space occupied by the connecting base 611 to be relatively reduced.

[0081] The upper transmission plate 62 is provided with several hollow holes 622, which penetrate through the upper and lower sides of the upper transmission plate 62. The upper transmission plate 62 can rotate so that the vertical projection of the hollow holes 622 covers the position of the corresponding screw device on the connecting base 611. When it is necessary to disassemble or assemble the fixing frame 61, the disassembly or assembly tool can pass through the hollow holes 622 through the upper transmission plate 62 and connect with the screw device. Even with the relatively small space occupied by the connecting base 611, the fixing frame 61 can still be disassembled or assembled relatively easily.

[0082] Furthermore, the second cutter disc 72 is fixedly connected to a lower transmission disc 81, and the lower transmission disc 81 is connected to a cutter disc drive mechanism 82. The drive mechanism drives the lower transmission disc 81 to rotate, so that the second cutter disc 72 can rotate relative to the first cutter disc 71 within the mixing chamber 11.

[0083] A powder outlet trough 13 is formed between the lower side of the lower drive disc 81 and the mixing chamber 11. The powder outlet trough 13 is located on the outside of the mixing chamber 11. A first anti-powder accumulation slope 131 is provided on the lower side of the powder outlet trough 13. The first anti-powder accumulation slope 131 is inclined downward from the inside to the outside along the radial direction of the mixing chamber 11. Under the action of centrifugal force and downward gravity, coffee powder particles can leave the powder outlet trough 13 more easily, avoiding the accumulation of coffee powder particles on the surface of the powder outlet trough 13, improving the stability of the grinder operation, and eliminating hygiene problems caused by excessive accumulation of coffee powder.

[0084] The outer periphery of the lower drive disc 81 is provided with a second anti-powder accumulation slope 811. The second anti-powder accumulation slope 811 is inclined downward from the inside to the outside along the radial direction of the lower drive disc 81. When coffee powder particles leave the second cutter disc 72 under the action of centrifugal force, some of them will fall on the second anti-powder accumulation slope 811, making it easier for them to leave the second anti-powder accumulation slope 811 and preventing coffee powder particles from accumulating on the second anti-powder accumulation slope 811.

[0085] Furthermore, a powder-proof groove 812 is provided on the lower side of the lower transmission disc 81 at a position between the powder outlet 13 and the drive mechanism along the radial direction. The main body 1 of the coffee grinder is provided with a powder-proof protrusion 14 corresponding to the powder-proof groove 812. The powder-proof protrusion 14 and the powder-proof groove 812 are connected and cooperate to form a powder-proof structure to prevent coffee powder from entering the drive mechanism from the powder outlet 13, which protects the drive mechanism and avoids the occurrence of rotation failure caused by coffee powder particles.

[0086] A powder sweeping part 813 is provided on the lower side of the lower drive plate 81 corresponding to the position of the powder outlet 13. The powder sweeping part 813 is adjacent to and cooperates with the first anti-powder accumulation inclined surface 131. The powder sweeping part 813 can better clean the coffee powder particles in the powder outlet 13 and further prevent coffee powder particles from accumulating on the surface of the powder outlet 13.

[0087] The above embodiments are merely preferred embodiments of the present invention, and the present invention may have other implementations. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope set forth in the claims of this application.

Claims

1. A coffee grinder, comprising a grinder body (1), wherein the grinder body (1) is provided with a mixing chamber (11) and a discharge seat (2) communicating with each other, wherein the mixing chamber (11) is provided with a grinding blade for grinding coffee beans by rotation, and the discharge seat (2) has a left side wall (21) on the side facing the rotation direction of the grinding blade, and a right side wall (22) on the other side of the discharge seat (2) opposite to the left side wall (21), characterized in that, The dispensing seat (2) is provided with a baffle plate (23) at the position between the left side wall (21) and the right side wall (22) to prevent coffee powder from drifting from the left side wall (21) to the right side wall (22). The baffle plate (23) forms a gap with the left side wall (21), the right side wall (22) and the stirring chamber (11) respectively. The dispensing seat (2) is provided with a vibrator part (3) at the position adjacent to the outer side of the left side wall (21) to make the dispensing seat (2) vibrate by tapping. The vibrator part (3) is connected to a vibrator drive mechanism for driving it to reciprocate in the direction of approaching or moving away from the dispensing seat (2).

2. The coffee grinder according to claim 1, characterized in that: One side of the powder baffle (23) is integrally formed with the discharge seat (2), and the other side of the powder baffle (23) extends toward the stirring chamber (11); The powder baffle (23) extends downward along the discharge seat (2), and the length of the powder baffle (23) extending downward is equivalent to the height of the mixing chamber (11); The distance between the powder baffle (23) and the left side wall (21) is greater than the distance between the powder baffle (23) and the right side wall (22). The powder baffle (23) is arranged adjacent to the middle position between the left side wall (21) and the right side wall (22).

3. The coffee grinder according to claim 1, characterized in that: The vibrator drive mechanism includes a drive unit (41) and a vibrator seat (42). The drive unit (41) is connected to a first motor device (43) that drives it to rotate. The first motor device (43) is fixedly connected to the main body (1) of the coffee grinder. The drive unit (41) is intermittently connected to the vibrator part (3) to make the vibrator part (3) move in a direction away from the discharge seat (2). The vibrator seat (42) is fixedly connected to the outside of the main body (1) of the coffee grinder. The vibrator part (3) and the vibrator seat (42) are concentrically arranged and movably connected. A return spring (421) is connected between the vibrator seat (42) and the vibrator part (3) to push the vibrator part (3) to move in a direction close to the discharge seat (2). The drive unit (41) is in the shape of a wheel and can rotate around its center position. Several protruding tooth blocks (411) are distributed on the outer side of the drive unit (41). The vibrator unit (3) is provided with a transmission block (31) corresponding to the protruding tooth block (411). The circumferential movement trajectory of the protruding tooth block (411) partially overlaps with that of the transmission block (31). The drive unit (41) drives the protruding tooth block (411) to move circumferentially so that the protruding tooth block (411) and the transmission block (31) are connected to each other and then separated.

4. The coffee grinder according to claim 3, characterized in that: The convex tooth block (411) has a first connecting surface (4111) and a second connecting surface (4112). The first connecting surface (4111) is planar, and the second connecting surface (4112) is arc-shaped. The second connecting surface (4112) is inclined towards the outer wall of the drive unit (41) along the rotation direction of the convex tooth block (411). The drive unit (41) drives the convex tooth block (411) to rotate so that the first connecting surface (4111) and the second connecting surface (4112) are connected and engaged with the transmission block (31) in sequence.

5. The coffee grinder according to claim 1, characterized in that: The vibrator (3) has a protruding post (32) at one end facing the discharge seat (2). The protruding post (32) extends towards the discharge seat (2), and the end of the protruding post (32) facing the discharge seat (2) is arc-shaped. The discharge seat (2) is provided with a striking platform (24) corresponding to the protruding post (32). The striking platform (24) extends towards the protruding post (32). The striking platform (24) is provided with a recess (241) corresponding to the protrusion (32). When the protrusion (32) is connected and engaged with the striking platform (24), the protrusion (32) extends at least partially into the recess (241).

6. The coffee grinder according to claim 1, characterized in that: The discharge seat (2) is detachably connected to the main body (1) of the grinder. The outer side of the discharge seat (2) is provided with mounting ears (25). The mounting ears (25) are connected and fixed to the main body (1) of the grinder by screws. The position of the vibrator (3) striking the discharge seat (2) is located on the side of the discharge seat (2) facing away from the main body (1) of the grinder. The side of the discharge seat (2) facing the main body (1) of the grinder is provided with an outer snap-fit ​​part (26) corresponding to the mounting ears (25). The main body (1) of the grinder is provided with an inner snap-fit ​​part (12) corresponding to the outer snap-fit ​​part (26). The outer snap-fit ​​part (26) and the inner snap-fit ​​part (12) are interlocked.

7. The coffee grinder according to claim 1, characterized in that: The upper side of the discharge seat (2) is connected to an upper cover (5), and the upper cover (5) is connected to a plasma generator (51) for generating plasma to the inside of the discharge seat (2).

8. The coffee grinder according to any one of claims 1-7, characterized in that: The main body (1) of the coffee grinder is fixedly connected to a second motor device (6) and a fixed frame (61). The grinding blades include a first blade disc (71) and a second blade disc (72). The second motor device (6) is driven by an upper transmission disc (62). The upper transmission disc (62) is fixedly connected to a transmission seat (63). The transmission seat (63) is fixedly connected to the first blade disc (71). A lifting thread mechanism is provided between the fixed frame (61) and the transmission seat (63). The transmission seat (63) rotates and drives the first blade disc (71) to move up and down through the lifting thread mechanism. The second motor device (6) drives the upper transmission disc (62) to make the transmission seat (63) rotate relative to the fixed frame (61). The transmission seat (63) is provided with a limiting step (631) at the position below the fixed frame (61). The maximum distance between the first cutter head (71) and the second cutter head (72) is equivalent to the maximum distance between the limiting step (631) and the fixed frame (61). The fixed frame (61) is provided with a clearance part (612) at the position above the lifting thread mechanism. The maximum distance between the clearance part (612) and the lifting thread mechanism is greater than the maximum distance between the limiting step (631) and the fixed frame (61). The second motor device (6) is provided with a drive gear (64), and the upper transmission disk (62) is provided with a driven gear (621). The drive gear (64) and the driven gear (621) mesh to form a gear mechanism. The second motor device (6) is connected to the upper transmission disk (62) through the gear mechanism. The maximum height at which the drive gear (64) and the driven gear (621) overlap in the horizontal direction is greater than the maximum distance between the limiting step (631) and the fixing frame (61).

9. The coffee grinder according to claim 8, characterized in that: The fixed frame (61) is provided with a connecting base (611), and the connecting base (611) is connected and fixed to the main body (1) of the grinder by a screw device. The motor device is a stepper motor or a servo motor. The connecting base (611) is at least partially covered by the vertical projection of the upper transmission disc (62); The upper transmission disk (62) is provided with a number of hollow holes (622). The hollow holes (622) penetrate the upper and lower sides of the upper transmission disk (62). The upper transmission disk (62) can rotate so that the vertical projection of the hollow holes (622) covers the position of the corresponding screw device on the connecting base (611).

10. The coffee grinder according to claim 8, characterized in that: The second cutter disc (72) is fixedly connected to a lower transmission disc (81), and the lower transmission disc (81) is connected to a cutter disc drive mechanism (82). A powder outlet groove (13) is formed between the lower side of the lower transmission disc (81) and the stirring chamber (11). The powder outlet groove (13) is located on the outside of the stirring chamber (11). A first anti-powder accumulation inclined surface (131) is provided on the lower side of the powder outlet groove (13). The first anti-powder accumulation inclined surface (131) is inclined downward from the inside to the outside along the radial direction of the stirring chamber (11). The outer periphery of the lower transmission disk (81) is provided with a second anti-powder accumulation inclined surface (811), which is inclined downward from the inside to the outside along the radial direction of the lower transmission disk (81). The lower drive disc (81) has a powder-proof groove (812) on its lower side corresponding to the position between the powder outlet (13) and the drive mechanism along the radial direction. The main body (1) of the coffee grinder has a powder-proof protrusion (14) corresponding to the powder-proof groove (812). The powder-proof protrusion (14) and the powder-proof groove (812) are connected and cooperate to form a powder-proof structure to prevent coffee powder from entering the drive mechanism from the powder outlet (13). The lower transmission disc (81) has a powder sweeping part (813) on its lower side corresponding to the position of the powder trough (13). The powder sweeping part (813) is adjacent to and cooperates with the first anti-powder accumulation inclined surface (131).

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