A self-cleaning coffee grinder

Abstract

The present invention discloses a self-cleaning bean grinder, comprising a housing, a support partition provided inside the housing, an L-shaped support mounting plate provided at the bottom of one lateral end of the support partition, a grinding assembly provided at the other end, a powder receiving rack provided on the inner surface of one lateral side of the L-shaped support mounting plate, a powder receiving port provided on one lateral side of the housing corresponding to the powder receiving rack, a powder pressing assembly provided at the top of the support partition corresponding to the position of the powder receiving rack, a bean hopper assembly provided on the top of the grinding assembly, and a plurality of cleaning assemblies symmetrically provided on both longitudinal sides of the grinding assembly. The beneficial effects of the present invention are as follows: the present invention has a reasonable design, a stable and firm overall structure, and strong practicality; it can not only control and adjust the coarseness of bean powder crushing and grinding, but also clean the residual powder inside after grinding, thereby improving the hygienic and safe use of the bean grinder.

Description

Technical Field

[0001] The invention relates to the technical field of disc-type grain mills, in particular to a self-cleaning bean grinder. Background Art

[0002] A coffee bean grinder is a machine specifically designed to grind roasted beans into powder. It uses a high-speed rotating grinding disc to finely grind the beans, resulting in a powder with the appropriate particle size and uniformity for subsequent cooking or beverage preparation. Common coffee bean grinders include manual grinders and electric grinders. The former relies on a manually rotated grinding disc for grinding, while the latter uses an electric motor to drive the disc to complete the grinding. Common grinding discs include flat discs, conical discs, and blade discs. Different designs affect the grinding effect and powder uniformity.

[0003] Chinese patent CN208494356U discloses a coffee bean grinder comprising a housing, an outer grinding wheel and an inner grinding wheel fixedly disposed within the housing, a plurality of movable cutter heads arranged in a circular array fixedly disposed within the outer grinding wheel, an adjustment ring fixedly disposed outside the movable cutter head, the upper and lower ends of the adjustment ring being threadedly connected to the housing, the adjustment ring and the movable cutter head mutually attracting each other, and the adjustment ring being threadedly connected to the housing of the coffee bean grinder, so that when the adjustment ring moves up and down, it squeezes and pulls the movable cutter head, thereby adjusting the distance between the movable cutter head and the inner grinding wheel. However, after use, bean powder will remain inside the coffee bean grinder, and cleaning can only be done with a dedicated brush, which is not only inconvenient but also has poor cleaning effects.

[0004] Chinese patent CN216167007U discloses a coffee grinder designed for easy cleaning. It includes a main unit, a drive unit, a lower conical grinding wheel, and an upper conical grinding wheel. The main unit has a grinding chamber, and the drive unit is located within the main unit. The upper and lower conical grinding wheels, as well as the powder container, are all removable and easy to remove for cleaning. However, cleaning the grinding chamber requires disassembly of the upper and lower conical grinding wheels and the powder container, which then need to be reassembled. This is not only inconvenient, but also affects the precision of the components after repeated disassembly and assembly over a long period of time, affecting the actual performance. Further development and improvement are needed. Summary of the Invention

[0005] The purpose of the present invention is to provide a self-cleaning bean grinder in order to solve the problem that the existing bean grinders are inconvenient to clean the residual bean powder inside.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions: a self-cleaning coffee bean grinder, comprising a shell, a support partition is provided inside the shell, an L-shaped support mounting plate is provided at the bottom of one lateral end of the support partition, and a grinding assembly is provided at the other end, a powder receiving rack is provided on the inner surface of one lateral side of the L-shaped support mounting plate, a powder receiving port is provided on one lateral side of the shell corresponding to the powder receiving rack, a powder pressing assembly is provided on the top of the support partition corresponding to the position of the powder receiving rack, a bean hopper assembly is provided on the top of the grinding assembly, a number of cleaning assemblies are symmetrically provided on both longitudinal sides of the grinding assembly, a water tank is provided on the inner surface of the bottom of the shell corresponding to the position of the grinding assembly, a water pump is provided on one longitudinal side of the water tank, a hot air blower is provided on the lateral side of the water pump, and a control device is provided on the outer surface of the shell above the powder receiving port.

[0007] Furthermore, the grinding assembly includes a grinding chamber body, the bottom of the grinding chamber body is connected to the top of the supporting partition, a first rotating motor is provided at the bottom of the supporting partition, the top output end of the first rotating motor passes through the supporting partition and the bottom of the grinding chamber body in sequence and is then installed with a lower grinding disc, a rotating seal is provided between the output end of the first rotating motor and the grinding chamber body, an upper grinding disc is threadedly connected to the top of the grinding chamber body, a transmission gear disc is provided on the circumferential outer surface of the upper grinding disc located above the grinding chamber body, and a powder outlet is provided on the side of the grinding chamber body that is laterally close to the powder receiving rack. A support mounting frame is provided on the other side, and a powder discharge pipe is provided at an angle downward at the powder discharge port, one end of the powder discharge pipe extends into the inner side of the L-shaped support mounting plate, and a transmission worm is provided above the support mounting frame, and a rotating support plate is provided at both ends of the transmission worm, and the transmission worm is meshed with the transmission gear disk, and one end of the transmission worm extends to the outside of the rotating support plate and is installed with a first helical gear, a second rotating motor is installed at the bottom of one end of the support mounting frame, and a top output end of the second rotating motor extends to the top of the support mounting frame and a second helical gear is installed, and the first helical gear is meshed with the second helical gear.

[0008] Furthermore, the powder pressing assembly includes a fixed socket, which is arranged at a position corresponding to the powder receiving rack on the top of the support partition, and a powder pressing head is installed at the bottom of the fixed socket. The support partition is a hollow structure corresponding to the position of the powder pressing head. A transmission box is provided on the top of the fixed socket, and a lifting support rod is provided on the top of the powder pressing head. The fixed socket and the transmission box are both plug-in connected to the lifting support rod in the vertical direction, and a plug-in limit platform is provided on one side of the lifting support rod, and a plurality of transmission teeth are equidistantly provided on the other side from top to bottom. The fixed socket and the transmission box are both plug-in connected to the transmission teeth in the vertical direction, and a third rotating motor is provided on the outer surface of one longitudinal side of the transmission box, and the output end of the third rotating motor extends into the inner side of the transmission box and a transmission gear is installed, and the transmission gear is meshed with the transmission teeth.

[0009] Furthermore, the bean hopper assembly includes a bean hopper body arranged above the grinding hopper body, the bean hopper body is plug-connected to the top of the shell, the lower half of the bean hopper body is a conical structure with a larger top and a smaller bottom, a support connecting sleeve is provided at the bottom of the bean hopper body, a support plug-in sleeve is provided at the bottom of the support connecting sleeve, one end of the support plug-in sleeve is plug-connected to the inner side of the upper grinding disc, a support limiting ring is plug-in installed on the outer side of the support connecting sleeve, at least two limiting protrusions are equidistantly provided on the outer surface of the support connecting sleeve, an annular limiting groove is provided on the inner surface of the support limiting ring, and plug-in slides are provided on the inner surface of the support limiting ring corresponding to the position of the limiting protrusions, and the plug-in slide is connected to the annular limiting groove, and the support limiting ring is symmetrically provided with a first lifting support plate on both sides, and the top of the first lifting support plate is aligned with the inner surface of the top of the shell. A first lifting device is arranged between the two plates, one end of the first lifting support plate on the lateral side of the support limiting ring is slidably connected to the inner surface of the lateral side of the shell in the vertical direction, a second lifting support plate is arranged below the first lifting support plate on the other side, a second lifting device is arranged at the bottom of the first lifting support plate, the output end of the second lifting device passes through the second lifting support plate to install a limiting block, the output end of the second lifting device is plugged into the second lifting support plate, a fourth rotating motor is arranged on the top of the second lifting support plate near one end of the support plug sleeve, and a guide plug rod is arranged on the top of the other end, the guide plug rod is plugged into the first lifting support plate, the bottom output end of the fourth rotating motor extends to the bottom of the second lifting support plate and a rotating support plate is installed, and a sealing cover is provided at one end of the rotating support plate.

[0010] Furthermore, the cleaning component includes a T-shaped plug hole and a movable support plate radially arranged on the wall of the grinding chamber body, the length direction of the movable support plate is perpendicular to the axial direction of the T-shaped plug hole, the bottom of the movable support plate is slidably connected to the top of the support partition along the axial direction of the T-shaped plug hole, the T-shaped plug hole includes a plug hole body and a limiting plug hole connected thereto, one end of the plug hole body is connected to the inner side of the grinding chamber body, and one end of the limiting plug hole is connected to the outer side of the grinding chamber body, a protective support box is provided on the outer side of the movable support plate, and a support rotating seat is provided on the movable support plate corresponding to the position of the T-shaped plug hole, and the support A first telescopic device is provided between the support rotating seat and the inner surface of the protective support box, the support rotating seat above the first telescopic device is provided with a rotating shaft, and a rotating support mounting plate is provided at one end of the rotating shaft close to the T-shaped plug hole, and a fifth rotating motor is installed on the surface of the support rotating seat away from the rotating support mounting plate, and the output end of the fifth rotating motor is connected to one end of the rotating shaft, and three second telescopic devices are equidistantly provided on the circumference of the surface of the rotating support mounting plate close to the support rotating seat, and the output ends of the three second telescopic devices pass through the rotating support mounting plate and are sequentially installed with a first limiting plug rod, a second limiting plug rod and a third limiting plug rod. A plug-in rod, the first limiting plug-in rod, the second limiting plug-in rod and the third limiting plug-in rod are respectively provided with a first supporting plug-in rod, a second supporting plug-in rod and a third supporting plug-in rod at one end away from the rotation support mounting plate, the first supporting plug-in rod, the second supporting plug-in rod and the third supporting plug-in rod are respectively provided with a water spray head, an air jet head and a blocking block at one end away from the rotation support mounting plate, a first channel and a second channel are respectively provided between the first limiting plug-in rod and the inside of the first supporting plug-in rod and between the second limiting plug-in rod and the inside of the second supporting plug-in rod, and one end of the first limiting plug-in rod and the second limiting plug-in rod are respectively provided There are a first connector and a second connector, the water spray head and one end of the first connector are both connected to the first channel, the air spray head and one end of the second connector are both connected to the second channel, the water pump input end is connected to the inside of the water tank through a water pipe, and the output end is connected to the other end of the first connector through a water pipe, and the hot air blower output end is connected to the other end of the second connector through an air pipe, and L-shaped fixed mounting plates are provided on the outer surfaces of both sides of the support rotating seat, and a number of bull's eye balls are equidistantly provided on one end of the L-shaped fixed mounting plate from top to bottom, and the outer surface of the bull's eye balls is in contact with the surface of one side of the rotating support mounting plate.

[0011] Furthermore, the movable support plate and the support rotating seat, as well as the support rotating seat and the L-shaped fixed installation plate are fixedly connected by welding.

[0012] Furthermore, the outer diameters of the first limiting plug-in rod, the second limiting plug-in rod and the third limiting plug-in rod match the inner diameter of the limiting plug-in hole to form a plug-in fit.

[0013] Furthermore, the outer diameters of the first supporting plug-in rod, the second supporting plug-in rod and the third supporting plug-in rod match the inner diameter of the plug-in hole body to form a plug-in fit.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The invention has a reasonable design, a stable and firm overall structure, and strong practicality. It can not only control the coarseness and fineness of bean powder crushing and grinding, but also clean the residual powder inside after grinding, thereby improving the hygiene and safety of the bean grinder.

[0016] 2. Specifically, the grinding assembly can not only crush and grind the bean material, but also adjust the coarseness of the ground bean powder. At the same time, combined with the powder pressing assembly, the bean powder can be pressed and extracted to meet the various needs of users and improve the user experience.

[0017] 3. Specifically, the bean hopper body realizes precise plugging with the upper grinding disc through the design of the support connecting sleeve and the support plug-in sleeve, and the cooperation of the limiting protrusion with the plug-in slide groove and the annular limiting groove can effectively fix and limit the movement of the bean hopper body, simplifying the disassembly and installation process and improving the convenience of operation; the first lifting support plate and the second lifting support plate and the first lifting device and the second lifting device are provided to realize the lifting operation of the bean hopper body, and the position of the bean hopper can be flexibly adjusted to meet different operation requirements, such as crushing, grinding, cleaning and the like; the cooperation of the second lifting device and the limiting block can ensure that the rotating support plate and the sealing cover remain stable during the lifting process, avoiding collision with other parts of the grinder; the design of the sealing cover can form a seal between the upper grinding disc and the upper grinding disc during the cleaning process, and cooperate with the first lifting device to realize precise operation, and seal and isolate the top of the grinding bin body, thereby improving the convenience and efficiency of cleaning and avoiding cross contamination of residues;

[0018] 4. Specifically, the cleaning component can switch between three states to cooperate with the grinding chamber body to achieve the normal operation of the grinding chamber component and automatic cleaning operation inside the grinding chamber. (1) When the bean material is crushed and ground normally, the sealing block is adjusted to the T-shaped plug hole to seal it, ensuring the sealing of the grinding chamber body and preventing leakage of bean powder. (2) When cleaning is required, the water spray head is adjusted to the inside of the plug hole body. With the cooperation of the water pump, the cleaning water in the water tank is pumped out and passes through the water pipe, the first connector and the first channel in sequence, and finally sprayed out through the water spray head to rinse the inside of the grinding chamber body. (3) After rinsing the inside of the grinding chamber body, the water spray head is removed from the T-shaped plug hole and the air jet head is sent to the inside of the plug hole body. With the cooperation of the hot air blower, the inside of the grinding chamber body is blown and dried to avoid moisture residue and prevent bacterial growth and mold formation. This automatic cleaning greatly reduces the complexity of manual operation and improves the efficiency and consistency of cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is the front view of the present invention;

[0021] Figure 3 Schematic diagram of the three-dimensional structure of the grinding assembly in the present invention;

[0022] Figure 4 Schematic diagram of the cross-sectional structure of the grinding assembly of the present invention;

[0023] Figure 5 Schematic diagram of the three-dimensional structure of the powder pressing assembly in the present invention;

[0024] Figure 6 This is a front view of the bean silo assembly of the present invention;

[0025] Figure 7 Schematic diagram of the three-dimensional structure of the supporting connecting sleeve in the present invention;

[0026] Figure 8 Schematic diagram of the three-dimensional structure of the support and limiting ring in the present invention;

[0027] Figure 9 It is a partially cutaway right side view of the cleaning assembly of the present invention;

[0028] Figure 10 for Figure 9 Enlarged view of part A in the middle;

[0029] Figure 11 A partially cutaway schematic diagram of the three-dimensional structure of the cleaning component of the present invention;

[0030] Figure 12It is a structural diagram of the T-shaped plug hole in the present invention;

[0031] Figure 13 Schematic diagram of the structure of the first channel in the present invention;

[0032] Figure 14 Schematic diagram of the structure of the second channel in the present invention.

[0033] In the figure: 1-housing, 2-support partition, 3-L-shaped support mounting plate, 4-grinding assembly, 5-powder receiving rack, 6-powder pressing assembly, 7-bean hopper assembly, 8-cleaning assembly, 9-water storage tank, 10-water pump, 11-hot air blower, 12-control device;

[0034] 401-grinding chamber body, 402-first rotating motor, 403-lower grinding disc, 404-upper grinding disc, 405-transmission gear disc, 406-support mounting frame, 407-powder discharge pipe, 408-transmission worm, 409-first helical gear, 410-second rotating motor, 411-second helical gear;

[0035] 601-fixed socket, 602-powder pressing head, 603-transmission box, 604-lifting support rod, 605-plug limit platform, 606-transmission tooth groove, 607-third rotating motor, 608-transmission gear;

[0036] 701-bean silo body, 702-support connecting sleeve, 703-support plug sleeve, 704-support limiting ring, 705-limiting protrusion, 706-annular limiting groove, 707-plugging slide, 708-first lifting support plate, 709-first lifting device, 710-second lifting support plate, 711-second lifting device, 712-limiting block, 713-fourth rotating motor, 714-guide plug rod, 715-rotating support plate, 716-sealing cover;

[0037] 801-T-type plug-in hole, 802-movable support plate, 803-protective support box, 804-support rotating seat, 805-first telescopic device, 806-rotating support mounting plate, 807-fifth rotating motor, 808-second telescopic device, 809-first limiting plug-in rod, 810-second limiting plug-in rod, 811-third limiting plug-in rod, 812-first support plug-in rod, 813-second support plug-in rod, 814-third support plug-in rod, 815-spray head, 816-jet head, 817-blocking block, 818-first channel, 819-second channel, 820-first connecting head, 821-second connecting head, 822-L-type fixed mounting plate, 823-bull's eye ball, 8011-plug-in hole body, 8012-limiting plug-in hole. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0040] Combine Figures 1 to 14 A self-cleaning coffee bean grinder shown in the figure includes a shell 1, a support partition 2 is provided inside the shell 1, an L-shaped support mounting plate 3 is provided at the bottom of one lateral end of the support partition 2, and a grinding assembly 4 is provided at the other end, a powder receiving rack 5 is provided on the inner surface of one lateral side of the L-shaped support mounting plate 3, a powder receiving port is provided on the lateral side of the shell 1 corresponding to the powder receiving rack 5, a powder pressing assembly 6 is provided on the top of the support partition 2 corresponding to the position of the powder receiving rack 5, a bean hopper assembly 7 is provided on the top of the grinding assembly 4, and several cleaning assemblies 8 are symmetrically provided on both sides of the grinding assembly 4 in the longitudinal direction, a water tank 9 is provided on the inner surface of the bottom of the shell 1 corresponding to the position of the grinding assembly 4, a water pump 10 is provided on the longitudinal side of the water tank 9, and a hot air blower 11 is provided on the lateral side of the water pump 10, and a control device 12 is provided on the outer surface of the shell 1 above the powder receiving port.

[0041] The grinding assembly 4 includes a grinding chamber body 401, the bottom of the grinding chamber body 401 is connected to the top of the supporting partition 2, the bottom of the supporting partition 2 is provided with a first rotating motor 402, the top output end of the first rotating motor 402 passes through the supporting partition 2 and the bottom of the grinding chamber body 401 in sequence, and a lower grinding disc 403 is installed thereafter, a rotating seal is provided between the output end of the first rotating motor 402 and the grinding chamber body 401, and an upper grinding disc 404 is threadedly connected to the top of the grinding chamber body 401, and the upper grinding disc 404 is located at the grinding chamber body 401. A transmission gear disc 405 is provided on the circumferential outer surface above the bin body 401, a powder outlet is provided on one side of the grinding bin body 401 near the powder receiving frame 5, and a support mounting frame 406 is provided on the other side. A powder outlet pipe 407 is provided at an angle downward at the powder outlet, and one end of the powder outlet pipe 407 extends into the inner side of the L-shaped support mounting plate 3. The lower grinding disc 403 is driven to rotate by the first rotating motor 402, and the bean material between the lower grinding disc 403 and the upper grinding disc 404 in the machine is broken with the cooperation of the upper grinding disc 404. The powder is crushed and ground, and then discharged into the powder receiving plate on the powder receiving frame 5 through the powder outlet and the powder outlet pipe 407; a transmission worm 408 is provided above the support mounting frame 406, and a rotating support plate is provided at both ends of the transmission worm 408. The transmission worm 408 is meshed with the transmission gear plate 405, and one end of the transmission worm 408 extends to the outside of the rotating support plate and is installed with a first bevel gear 409. A second rotating motor 410 is installed at the bottom of one end of the support mounting frame 406, and the top output end of the second rotating motor 410 extends to the support mounting frame 4 06 is installed above the second bevel gear 411, the first bevel gear 409 is engaged with the second bevel gear 411, and the second rotating motor 410 is provided to drive the second bevel gear 411 to rotate. Under the transmission of the first bevel gear 409, the transmission worm 408 is driven to rotate, and the transmission gear plate 405 engaged with the transmission worm 408 rotates accordingly, driving the upper grinding disc 404 to achieve lifting and lowering, so as to adjust the distance between the upper grinding disc 404 and the lower grinding disc 403, so as to control the coarseness of the crushed and ground soybean powder.

[0042] The powder pressing assembly 6 includes a fixed socket 601, which is arranged at the position of the powder receiving rack 5 on the top of the supporting partition, a powder pressing head 602 is installed at the bottom of the fixed socket 601, and the position of the supporting partition 2 corresponding to the powder pressing head 602 is a hollow structure. A transmission box 603 is arranged on the top of the fixed socket 601, and a lifting support rod 604 is arranged on the top of the powder pressing head 602. The fixed socket 601 and the transmission box 603 are both plugged in and connected to the lifting support rod 604 in the vertical direction, and a plug-in limit platform 60 is provided on one side of the lifting support rod 604. 5, and a plurality of transmission tooth grooves 606 are equidistantly arranged on the other side from top to bottom. The fixed socket 601 and the transmission box 603 are both plug-connected with the transmission tooth grooves 606 in the vertical direction. A third rotary motor 607 is provided on the outer surface of one longitudinal side of the transmission box 603. The output end of the third rotary motor 607 extends into the transmission box 603 and a transmission gear 608 is installed on the inner side. The transmission gear 608 is engaged with the transmission tooth grooves 606 to realize the compaction operation of the soy powder in the powder receiving tray on the upper part of the powder rack 5, thereby improving the extraction effect and thus improving the taste of the beverage.

[0043] The bean hopper assembly 7 includes a bean hopper body 701 arranged above the grinding hopper body 401, the bean hopper body 701 is plugged into and connected to the top of the shell 1, the lower half of the bean hopper body 701 is a conical structure with a larger upper portion and a smaller lower portion, a support connecting sleeve 702 is provided at the bottom of the bean hopper body 701, a support plug sleeve 703 is provided at the bottom of the support connecting sleeve 702, one end of the support plug sleeve 703 is plugged into and connected to the inner side of the upper grinding disc 404, a support limiting ring 704 is plugged into and installed on the outer side of the support connecting sleeve 702, at least two limiting protrusions 705 are equidistantly provided on the outer surface of the support connecting sleeve 702, an annular limiting groove 706 is provided on the inner surface of the support limiting ring 70 4. The inner surface is provided with a plug-in slot 707 at the position corresponding to the limiting protrusion 705. The plug-in slot 707 is connected to the annular limiting slot 706. The bean hopper body 701, the support connecting sleeve 702 and the support plug-in sleeve 703 are an integrated structure. One end of the support plug-in sleeve 703 is plugged and connected to the inner side of the upper grinding disc 404, so that the beans in the bean hopper body 701 can enter between the upper grinding disc 404 and the lower grinding disc 403 for crushing and grinding. Among them, the limiting protrusion 705 provided on the outer surface of the support connecting sleeve 702 can enter the annular limiting slot 706 through the plug-in slot 707 and rotate to achieve fixed limitation of the bean hopper body 701, which is convenient for the bean hopper body 701 to be crushed and ground. The first lifting support plate 708 is symmetrically arranged on both sides of the support and limiting ring 704, and a first lifting device 709 is arranged between the top of the first lifting support plate 708 and the inner surface of the top of the shell 1. One end of the first lifting support plate 708 on the lateral side of the support and limiting ring 704 is slidably connected to the inner surface of the lateral side of the shell 1 along the vertical direction, and a second lifting support plate 710 is arranged below the first lifting support plate 708 on the other side. The first lifting support plate 708 is driven to rise and fall by the first lifting device 709, and under the cooperative transmission of the support and limiting ring 704, the bean hopper body 701 can be driven to achieve the lifting operation; the first lifting support plate 7 08 is provided with a second lifting device 711 at the bottom, the output end of the second lifting device 711 passes through the second lifting support plate 710 and is installed with a limit block 712, the output end of the second lifting device 711 is plugged and connected to the second lifting support plate 710, the top of the second lifting support plate 710 near one end of the support plug sleeve 703 is provided with a fourth rotary motor 713, and the top of the other end is provided with a guide plug rod 714, the guide plug rod 714 is plugged and connected to the first lifting support plate 708, the bottom output end of the fourth rotary motor 713 extends to the bottom of the second lifting support plate 710 and is installed with a rotating support plate 715, and a sealing cover 716 is provided at one end of the rotating support plate 715;When the support socket 703 descends and engages with the upper grinding disc 404, the second lifting device 711 will drive the second lifting support plate 710 to rise with the cooperation of the limit block 712. At the same time, the fourth rotary motor 713, the rotating support plate 715 and the sealing cover 716 installed on the second lifting support plate 710 will follow and rise, so as to avoid collision between the rotating support plate 715 and the sealing cover 716 and other parts of the coffee grinder. When the support socket 703 rises and leaves the upper grinding disc 404, and the inside of the grinding chamber body 401 needs to be cleaned, the second lifting device 711 will drive the second lifting support plate 710 to descend, so that the sealing cover 716 rises and falls between the support socket 703 and the upper grinding disc 404, and then the fourth rotary motor 713, the rotating support plate 715 and the sealing cover 716 are installed. The motor 713 drives the rotating support plate 715 and the sealing cover 716 to rotate to the position directly above the upper grinding disc 404. Finally, the first lifting device 709 is controlled to operate according to the above steps to drive the support sleeve 703 downward to press the sealing cover 716, thereby sealing the top of the grinding chamber body 401 and facilitating internal flushing and cleaning. It is worth noting that while the first lifting device 709 drives the support sleeve 703 downward to press the sealing cover 716, the second lifting device 711 follows the first lifting support plate 708 downward. However, the structural connection between the output end of the second lifting device 711 and the second lifting support plate 710 ensures that the height of the sealing cover 716 at the top of the upper grinding disc 404 remains unchanged.

[0044] The cleaning component 8 includes a T-shaped plug hole 801 and a movable support plate 802 radially arranged on the wall of the grinding chamber body 401. The length direction of the movable support plate 802 is perpendicular to the axial direction of the T-shaped plug hole 801. The bottom of the movable support plate 802 is slidably connected to the top of the support partition 2 along the axial direction of the T-shaped plug hole 801. The T-shaped plug hole 801 includes a plug hole body 8011 and a limiting plug hole 8012 connected thereto. One end of the plug hole body 8011 is connected to the inner side of the grinding chamber body 401, and one end of the limiting plug hole 8012 is connected to the outer side of the grinding chamber body 401. A protective support box 803 is provided on the outer side of the movable support plate 802, and a support rotating seat is provided on the movable support plate 802 at the position corresponding to the T-shaped plug hole 801. 804, a first telescopic device 805 is provided between the supporting rotating seat 804 and the inner surface of the protective support box 803, the supporting rotating seat 804 above the first telescopic device 805 is provided with a rotating shaft, and a rotating support mounting plate 806 is provided at one end of the rotating shaft close to the T-shaped plug hole 801, and a fifth rotating motor 807 is installed on the surface of the supporting rotating seat 804 away from the rotating support mounting plate 806, and the output end of the fifth rotating motor 807 is connected to one end of the rotating shaft, and three second telescopic devices 808 are equidistantly provided on the circumference of the rotating support mounting plate 806 close to the supporting rotating seat 804. The output ends of the three second telescopic devices 808 pass through the rotating support mounting plate 806 and are sequentially installed with a first limiting plug-in rod 809, a second limiting plug-in rod 809, and a second limiting plug-in rod 809. The plug rod 810 and the third limiting plug rod 811, the first limiting plug rod 809, the second limiting plug rod 810 and the third limiting plug rod 811 are respectively provided with a first supporting plug rod 812, a second supporting plug rod 813 and a third supporting plug rod 814 at one end away from the rotating support mounting plate 806, the first supporting plug rod 812, the second supporting plug rod 813 and the third supporting plug rod 814 are respectively provided with a water spray head 815, an air jet head 816 and a blocking block 817 at one end away from the rotating support mounting plate 806, and a first channel 818 and a second channel 818 are respectively provided between the first limiting plug rod 809 and the first supporting plug rod 812 and between the second limiting plug rod 810 and the second supporting plug rod 813 819, the first limiting plug rod 809 and the second limiting plug rod 810 are respectively provided with a first connector 820 and a second connector 821 at one end, the water spray head 815 and one end of the first connector 820 are both connected to the first channel 818, the jet head 816 and one end of the second connector 821 are both connected to the second channel 819, the input end of the water pump 10 is connected to the inside of the water tank 9 through a water pipe, and the output end is connected to the other end of the first connector 820 through a water pipe, and the output end of the hot air blower 11 is connected to the other end of the second connector 821 through an air pipe. The outer surfaces of both sides of the support rotating seat 804 are provided with L-shaped fixed mounting plates 822, and a plurality of bull's eye balls 823 are equidistantly provided on one end of the L-shaped fixed mounting plate 822 from top to bottom.The outer surface of the bull's eye ball 823 contacts the surface of one side of the rotation support mounting plate 806;

[0045] The first limiting plug-in rod 809, the second limiting plug-in rod 810, the third limiting plug-in rod 811, the first supporting plug-in rod 812, the second supporting plug-in rod 813 and the third supporting plug-in rod 814 are all coaxial with the T-shaped plug-in hole 801 when following the rotating support mounting plate 806 to rotate to the highest point, so that the first limiting plug-in rod 809, the second limiting plug-in rod 810 and the third limiting plug-in rod 811 can be plugged into and matched with the limiting plug-in hole 8012, and the first supporting plug-in rod 812, the second supporting plug-in rod 813 and the third supporting plug-in rod 814 can be plugged into and matched with the plug-in hole body 8011; in addition, the first limiting plug-in rod Optical positioning sensors are provided on the rotating support mounting plate 806 inside the second limiting plug-in rod 809, the second limiting plug-in rod 810 and the third limiting plug-in rod 811, as well as on the outer surface of the grinding chamber body 401 below the T-shaped plug-in hole 801, so as to accurately adjust the first limiting plug-in rod 809, the second limiting plug-in rod 810 and the third limiting plug-in rod 811 to a coaxial position with the T-shaped plug-in hole 801; when the coffee bean grinder is in normal use, the third limiting plug-in rod 811 and the third supporting plug-in rod 814 are respectively in plug-in connection with the limiting plug-in hole 8012 and the plug-in hole body 8011, and the surface of one end of the blocking block 817 is in contact with the grinding chamber body 401. The inner surface of the grinding chamber body 401 is on the same arc surface. When the inside of the grinding chamber body 401 needs to be cleaned, the third limit plug-in rod 811 will be driven to retreat under the cooperation of the first telescopic device 805 and the second telescopic device 808, so that the blocking block 817 leaves the grinding chamber body 401, and then the fifth rotary motor 807 will be controlled to drive the rotary support mounting plate 806 to rotate, so that the first limit plug-in rod 809 is adjusted to a coaxial position with the T-shaped plug-in hole 801, and then the first telescopic device 805 and the second telescopic device 808 will be driven to move forward to make the water spray head 815 enter the plug-in hole. The cleaning water in the water storage tank 9 is pumped out in cooperation with the water pump 10, and sequentially passes through the water pipe, the first connector 820 and the first channel 818, and finally is sprayed out through the water spray head 815 to rinse the inside of the grinding chamber body 401. After the inside of the grinding chamber body 401 is rinsed, the first telescopic device 805, the second telescopic device 808 and the fifth rotary motor 807 are controlled to work, and the water spray head 815 is taken away from the T-shaped plug hole 801, and the air spray head 816 is sent into the inside of the plug hole body 8011. With the cooperation of the hot air blower 11, the inside of the grinding chamber body 401 is blown and dried.

[0046] Among them, the movable support plate 802 and the support rotating seat 804, as well as the support rotating seat 804 and the L-shaped fixed mounting plate 822 are fixedly connected by welding to ensure the stability and firmness of the connection structure between each other and improve the service life; the outer diameters of the first limiting plug-in rod 809, the second limiting plug-in rod 810 and the third limiting plug-in rod 811 match the inner diameter of the limiting plug-in hole 8012 and are plug-fitted, and the outer diameters of the first supporting plug-in rod 812, the second supporting plug-in rod 813 and the third supporting plug-in rod 814 match the inner diameter of the plug-in hole body 8011 and are plug-fitted, so as to ensure the first limiting plug-in rod 809, the second limiting plug-in rod 810, the third limiting plug-in rod 811 The effect of the positioning plug-in rod 811, the first support plug-in rod 812, the second support plug-in rod 813 and the third support plug-in rod 814 being plugged into the T-shaped plug-in hole 801; in addition, the water pump 10, the hot air blower 11, the first rotating motor 402, the second rotating motor 410, the third rotating motor 607, the first lifting device 709, the second lifting device 711, the fourth rotating motor 713, the first telescopic device 805, the fifth rotating motor 807 and the second telescopic device 808 are all electrically connected to the control device 12 to control the working status of each driving component, among which the first lifting device 709, the second lifting device 711, the first telescopic device 805 and the second telescopic device 808 are electric telescopic rods.

[0047] When in use, the first rotating motor is controlled to work, driving the lower grinding disc to rotate, and then the bean material to be crushed and ground is fed into the bean hopper body, and then enters between the upper and lower grinding discs through the support connecting sleeve, the support plug sleeve and the inner side of the upper grinding disc for crushing and grinding. The crushed and ground bean powder is discharged through the powder outlet and the powder outlet pipe into the powder receiving tray on the powder receiving rack;

[0048] By controlling the operation of the second rotary motor, the transmission worm is driven to rotate under the cooperation of the first bevel gear and the second bevel gear. Under the drive of the transmission gear plate, the height of the upper grinding disc is adjusted to adjust the distance between the upper grinding disc and the lower grinding disc, so as to control the coarseness of the bean powder crushing and grinding.

[0049] By controlling the operation of the third rotary motor, the transmission gear, the lifting support rod and the transmission tooth groove on the lifting support rod cooperate to make the lifting support rod move up and down, thereby driving the powder tamping head to tamp the bean powder in the powder receiving tray below;

[0050] The bean bin body, the support connecting sleeve and the support plug-in sleeve are combined into an integrated structure, which is stable and firm and convenient for plugging and matching with the inner side of the upper grinding disc. The limiting protrusion provided on the support connecting sleeve can be plugged into the plug-in slide groove on the support limiting ring and finally enter the annular limiting groove. Then the bean bin body is rotated to complete the fixed limit of the bean bin body. At the same time, the support limiting ring can drive the bean bin body, the support connecting sleeve and the support plug-in sleeve to rise and fall under the cooperation of the first lifting support plate and the first lifting device, adjust the plug-in matching state of the support plug-in sleeve and the upper grinding disc, drive the support plug-in sleeve to plug and match with the inner side of the upper grinding disc during normal crushing and grinding, and clean the grinding bin body. When the upper portion of the upper grinding disc is lowered, the supporting plug sleeve is driven to rise away from the upper grinding disc, so that the sealing plate is driven to move by the second lifting device and the fourth rotary motor and adjusted to the upper portion of the upper grinding disc. Finally, the first lifting device is controlled to drive the bean hopper body, the supporting connecting sleeve and the supporting plug sleeve to descend, and pressure is applied to the sealing cover through the supporting plug sleeve. Since the output end of the second lifting device passes through the second lifting support plate to install a limited block, the output end of the second lifting device is plugged and connected to the second lifting support plate. Therefore, the second lifting device does not apply pressure to the sealing cover during the overall descent process, but applies relatively uniform pressure to the sealing cover by driving the supporting plug sleeve to descend, so as to ensure the sealing effect.

[0051] When the bean material is crushed and ground normally, the third limiting plug-in rod and the third supporting plug-in rod are plugged into and matched with the T-shaped plug-in hole, the blocking block is located in the T-shaped plug-in hole, and the arc surface at one end of the blocking block is on the same arc surface as the inner surface of the grinding bin body, so as to block the T-shaped plug-in hole and prevent the leakage of bean powder; after use, when the inside of the grinding bin body needs to be cleaned, the second rotating motor is controlled to work, and under the cooperation of the first bevel gear and the second bevel gear, the transmission worm is driven to rotate, and under the drive of the transmission gear plate, the height of the upper grinding disc is adjusted so that there is a certain distance between the upper grinding disc and the lower grinding disc. At the same time, the first telescopic device and the second telescopic device corresponding to the position of the third limiting plug-in rod are controlled to respectively drive the movable support plate and the third limiting plug-in rod to retreat, so that the blocking block leaves the T-shaped plug-in hole, and then the fifth rotating motor is controlled to drive the rotating support mounting plate to rotate, adjust the first limiting plug-in rod to the highest point, so that it is coaxial with the T-shaped plug-in hole, and then control the first telescopic device corresponding to the position of the first limiting plug-in rod. The first and second telescopic devices corresponding to the positions of the first limit plug-in rods are controlled to respectively drive the movable support plate and the first limit plug-in rod to move forward, adjust the water spray head to the inside of the plug-in hole body, and with the cooperation of the water pump, pump out the cleaning water in the water storage tank, pass through the water pipe, the first connecting head and the first channel in sequence, and finally spray out through the water spray head to rinse the inside of the grinding chamber body; after the inside of the grinding chamber body is rinsed, the first telescopic device and the second telescopic device corresponding to the position of the first limit plug-in rod are controlled to respectively drive the movable support plate and the first limit plug-in rod to move backward, bringing them away from the T-shaped plug-in hole, and then the fifth rotary motor is controlled to drive the rotary support mounting plate to rotate, adjust the second limit plug-in rod to the highest point, so that it is coaxial with the T-shaped plug-in hole, and then the first telescopic device and the second telescopic device corresponding to the position of the second limit plug-in rod are controlled to respectively drive the movable support plate and the second limit plug-in rod to move forward, sending the water spray head into the inside of the plug-in hole body, and with the cooperation of the hot air blower, the inside of the grinding chamber body is blown and dried to complete the cleaning operation of the coffee grinder.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0053] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A self-cleaning coffee bean grinder, comprising a housing (1), characterized in that: A supporting partition (2) is provided inside the shell (1), an L-shaped supporting mounting plate (3) is provided at the bottom of one lateral end of the supporting partition (2), and a grinding assembly (4) is provided at the other end, a powder receiving rack (5) is provided on the inner surface of one lateral side of the L-shaped supporting mounting plate (3), a powder receiving port is provided on one lateral side of the shell (1) corresponding to the powder receiving rack (5), a powder pressing assembly (6) is provided on the top of the supporting partition (2) corresponding to the position of the powder receiving rack (5), a bean hopper assembly (7) is provided on the top of the grinding assembly (4), and a plurality of cleaning assemblies (8) are symmetrically provided on both longitudinal sides of the grinding assembly (4), a water storage tank (9) is provided on the inner surface of the bottom of the shell (1) corresponding to the position of the grinding assembly (4), a water pump (10) is provided on one longitudinal side of the water storage tank (9), and a hot air blower (11) is provided on one lateral side of the water pump (10), and a control device (12) is provided on the outer surface of the shell (1) above the powder receiving port; The grinding assembly (4) includes a grinding chamber body (401), the bottom of the grinding chamber body (401) is connected to the top of the supporting partition (2), a first rotating motor (402) is provided at the bottom of the supporting partition (2), the top output end of the first rotating motor (402) passes through the supporting partition (2) and the bottom of the grinding chamber body (401) in sequence, and a lower grinding disc (403) is installed thereafter, a rotating seal is provided between the output end of the first rotating motor (402) and the grinding chamber body (401), the top of the grinding chamber body (401) is threadedly connected to an upper grinding disc (404), the circumferential outer surface of the upper grinding disc (404) located above the grinding chamber body (401) is provided with a transmission gear disc (405), the grinding chamber body (401) is provided with a powder outlet on one side thereof near the powder receiving rack (5), and a lower grinding disc (403) is provided on the other side thereof. A support mounting frame (406) is provided, a powder outlet pipe (407) is provided at an angle downward at the powder outlet, one end of the powder outlet pipe (407) extends into the inner side of the L-shaped support mounting plate (3), a transmission worm (408) is provided above the support mounting frame (406), a rotating support plate is provided at both ends of the transmission worm (408), the transmission worm (408) is meshed with the transmission gear plate (405), one end of the transmission worm (408) extends to the outer side of the rotating support plate and is installed with a first bevel gear (409), a second rotating motor (410) is installed at the bottom of one end of the support mounting frame (406), the top output end of the second rotating motor (410) extends to the top of the support mounting frame (406) and is installed with a second bevel gear (411), the first bevel gear (409) is meshed with the second bevel gear (411); The cleaning assembly (8) comprises a T-shaped plug hole (801) and a movable support plate (802) radially arranged on the wall of the grinding chamber body (401), the length direction of the movable support plate (802) is perpendicular to the axial direction of the T-shaped plug hole (801), the bottom of the movable support plate (802) and the top of the support partition (2) are slidably connected along the axial direction of the T-shaped plug hole (801), the T-shaped plug hole (801) comprises a plug hole body (8011) and a limit plug hole (8012) connected thereto, one end of the plug hole body (8011) is connected to the inner side of the grinding chamber body (401), and one end of the limit plug hole (8012) is connected to the outer side of the grinding chamber body (401), A protective support box (803) is provided on the outside of the movable support plate (802), a support rotating seat (804) is provided on the movable support plate (802) at a position corresponding to the T-shaped plug hole (801), a first telescopic device (805) is provided between the support rotating seat (804) and the inner surface of the protective support box (803), a rotating shaft is provided on the support rotating seat (804) above the first telescopic device (805), a rotating support mounting plate (806) is provided on one end of the rotating shaft close to the T-shaped plug hole (801), a fifth rotating motor (807) is installed on the surface of the support rotating seat (804) away from the rotating support mounting plate (806), and the fifth rotating motor (807) The output end is connected to one end of the rotating shaft, and three second telescopic devices (808) are equidistantly arranged on the circumference of the surface of the rotating support mounting plate (806) close to the supporting rotating seat (804). The output ends of the three second telescopic devices (808) pass through the rotating support mounting plate (806) and are sequentially installed with a first limiting plug-in rod (809), a second limiting plug-in rod (810) and a third limiting plug-in rod (811). The first limiting plug-in rod (809), the second limiting plug-in rod (810) and the third limiting plug-in rod (811) are respectively provided with a first supporting plug-in rod (812), a second supporting plug-in rod (813) and a third supporting plug-in rod (814) at one end away from the rotating support mounting plate (806). 14), the first support plug rod (812), the second support plug rod (813) and the third support plug rod (814) are respectively provided with a water spray head (815), an air spray head (816) and a blocking block (817) at one end away from the rotating support mounting plate (806), a first channel (818) and a second channel (819) are respectively provided between the first limiting plug rod (809) and the inside of the first support plug rod (812) and between the second limiting plug rod (810) and the inside of the second support plug rod (813), a first connector (820) and a second connector (821) are respectively provided at one end of the first limiting plug rod (809) and the second limiting plug rod (810),The water spray head (815) and one end of the first connector (820) are both connected to the first channel (818), and the air spray head (816) and one end of the second connector (821) are both connected to the second channel (819). The input end of the water pump (10) is connected to the inside of the water storage tank (9) through a water pipe, and the output end is connected to the other end of the first connector (820) through a water pipe. The output end of the hot air blower (11) is connected to the other end of the second connector (821) through an air pipe. L-shaped fixed mounting plates (822) are provided on the outer surfaces of both sides of the support rotating seat (804). A plurality of bull's eye balls (823) are equidistantly provided on one end of the L-shaped fixed mounting plate (822) from top to bottom. The outer surface of the bull's eye balls (823) is in contact with the surface of one side of the rotating support mounting plate (806).

2. The self-cleaning coffee grinder according to claim 1, characterized in that: The powder pressing assembly (6) comprises a fixed socket (601), the fixed socket (601) being arranged at a position corresponding to the powder receiving frame (5) on the top of the supporting partition, a powder pressing head (602) being plugged and installed at the bottom of the fixed socket (601), the position of the supporting partition (2) corresponding to the powder pressing head (602) being a hollow structure, a transmission box (603) being arranged at the top of the fixed socket (601), a lifting support rod (604) being arranged at the top of the powder pressing head (602), the fixed socket (601) and the transmission box (603) being vertically connected to the lifting support rod (604). The lifting support rod (604) is connected in a plug-in manner, a plug-in limit platform (605) is provided on one side, and a plurality of transmission tooth grooves (606) are provided on the other side at equal intervals from top to bottom. The fixed plug seat (601) and the transmission box (603) are both plug-in connected to the transmission tooth groove (606) in a vertical direction. A third rotating motor (607) is provided on the outer surface of one longitudinal side of the transmission box (603). The output end of the third rotating motor (607) extends into the inner side of the transmission box (603) and is installed with a transmission gear (608). The transmission gear (608) is meshed with the transmission tooth groove (606).

3. The self-cleaning coffee grinder according to claim 2, characterized in that: The bean bin assembly (7) comprises a bean bin body (701) arranged above the grinding bin body (401), the bean bin body (701) is plug-connected to the top of the shell (1), the lower half of the bean bin body (701) is a conical structure with a larger upper portion and a smaller lower portion, a support connection sleeve (702) is provided at the bottom of the bean bin body (701), a support plug sleeve (703) is provided at the bottom of the support connection sleeve (702), one end of the support plug sleeve (703) is plug-connected to the inner side of the upper grinding disc (404), and a support limiter is plug-installed on the outer side of the support connection sleeve (702). The support connecting sleeve (702) is provided with at least two limiting protrusions (705) at equal intervals on its outer surface, and an annular limiting groove (706) is provided on its inner surface. The inner surface of the support limiting ring (704) is provided with a plug-in slide (707) at positions corresponding to the limiting protrusions (705), and the plug-in slide (707) is connected to the annular limiting groove (706). The support limiting ring (704) is symmetrically provided with a first lifting support plate (708) on both sides thereof. The top of the first lifting support plate (708) is aligned with the top of the shell (1). A first lifting device (709) is provided between the inner surfaces, one end of the first lifting support plate (708) on the lateral side of the support limiting ring (704) is slidably connected to the inner surface of the lateral side of the shell (1) in the vertical direction, a second lifting support plate (710) is provided below the first lifting support plate (708) on the other side, a second lifting device (711) is provided at the bottom of the first lifting support plate (708), an output end of the second lifting device (711) passes through the second lifting support plate (710) to install a limiting block (712), and the second lifting device (711) is provided with a limiting block (712). 11) The output end is plug-connected with the second lifting support plate (710); a fourth rotating motor (713) is provided at the top of one end of the second lifting support plate (710) close to the supporting plug sleeve (703); a guide plug rod (714) is provided at the top of the other end; the guide plug rod (714) is plug-connected with the first lifting support plate (708); the bottom output end of the fourth rotating motor (713) extends to the bottom of the second lifting support plate (710) and a rotating support plate (715) is installed; a sealing cover (716) is provided at one end of the rotating support plate (715).

4. The self-cleaning coffee grinder according to claim 1, characterized in that: The movable support plate (802) and the support rotating seat (804), as well as the support rotating seat (804) and the L-shaped fixed installation plate (822), are fixedly connected by welding.

5. The self-cleaning coffee grinder according to claim 1, characterized in that: The outer diameters of the first limiting plug-in rod (809), the second limiting plug-in rod (810) and the third limiting plug-in rod (811) match the inner diameter of the limiting plug-in hole (8012) to form a plug-in fit.

6. The self-cleaning coffee grinder according to claim 1, characterized in that: The outer diameters of the first supporting plug-in rod (812), the second supporting plug-in rod (813) and the third supporting plug-in rod (814) match the inner diameter of the plug-in hole body (8011) to form a plug-in fit.

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