A self-locking detection coffee machine bean hopper system

Abstract

The present invention relates to a self-locking and detection bean hopper system for a coffee machine. This system addresses the technical issues of existing similar products, such as poor bean dispensing structure design, the tendency for beans to jump out of the bean hopper, and the inadequate self-locking and detection functions of the bean hopper assembly. The key features of this bean hopper system are: arched slopes are provided on either side of the inclined surface between the through-hole where the bean dispensing gear is located and the inner wall of the bean hopper. A conical top cover is provided above the through-hole where the bean dispensing gear is located, connecting the two slopes. A bean inlet is defined by a gap between the bottom of the top cover and the through-hole where the bean dispensing gear is located. A bean-dispensing blade extends from the outer diameter of the bean dispensing gear within the through-hole. A self-locking disc is provided at the top of the bean dispensing gear within the through-hole. A knob protruding from the center of the top of the disc extends through the center hole of the bean hopper cover, and a self-locking knob is provided. A bean hopper locking rod and a bean hopper detection rod are provided on either side of the disc, each inserted into a hole in the bean hopper. The rod triggers a corresponding detection microswitch.

Description

Technical Field

[0001] The invention relates to a coffee machine bean bin system with a grinder, in particular to a self-locking detection type coffee machine bean bin system. Background Art

[0002] A coffee machine is an electrical device used for making coffee, which is generally divided into semi-automatic and fully automatic types. The semi-automatic coffee machine is a traditional Italian coffee machine, which follows manual operations such as grinding, pressing, loading, brewing, and manual removal of residues; the fully automatic coffee machine realizes automatic control of the entire coffee brewing process including preheating, cleaning, grinding, pressing, brewing, and draining, and brews coffee according to scientific data and procedures. It also has a complete protection system and is easy to use. You can get coffee with just a light touch. Some existing coffee machines use a knob inside the bean bin (bean box) to open and adjust the bean opening, such as application number 202410639454.7 disclosed in the Chinese patent literature, with an application publication date of July 16, 2024, and the invention title "Bean Weighing and Grinding System for Coffee Machines"; this bean weighing and grinding system uses a movable door knob inside the bean bin (bean box) to rotate the movable door and adjust the size of the bean opening at the bean opening. However, these and similar products rarely use knobs and corresponding components extending from the bean bin (bean box) to unlock or self-lock the bean box assembly. Another example is the application number 202411325610.9 disclosed in the Chinese patent document, the application publication date is 2024.11.26, and the invention name is "A coffee machine bean box lower bean grinding mechanism"; this mechanism detects the placement of the bean box assembly into the bean box base assembly through a micro switch, but the bone position triggering method has poor stability and is prone to risks such as breakage. The production mold is more complicated and inconvenient, and it is difficult to repair and replace; at the same time, the existing coffee machine usually does not have a self-locking function after the bean box assembly is placed, and the machine recognition cannot be triggered. This causes the machine to vibrate after starting grinding, which easily causes the bean box to bounce up. Summary of the Invention

[0003] To overcome the aforementioned shortcomings, the present invention aims to provide a self-locking and detecting coffee machine bean hopper system to address the technical issues of existing similar products, such as poor bean loading mechanism design, which easily causes bean hoppers to jump out and hit hands, and poor self-locking and detection functions of the bean hopper assembly, resulting in poor bean loading and distribution. This objective is achieved through the following technical solution.

[0004] A self-locking detection type coffee machine bean bin system, the coffee machine bean bin system includes a bean box assembly and a bean grinding assembly, the bean box assembly is provided with a bean box base assembly at the bottom, the bean grinding assembly includes a weighing assembly and a grinding knife assembly, the raised lower bean opening at the bottom of the bean box base assembly is fitted with the raised blade on the top of the grinding knife assembly of the grinding bean assembly, the motor shaft of the grinding motor of the grinding knife assembly is connected to the grinding knife head assembly in the grinding chamber, the bean box base assembly and the grinding knife assembly are fixedly arranged on the machine body, the notch at the top disc slot of the bean box seat on the top of the bean box base assembly is exposed from the machine body, and a powder outlet channel communicating with the grinding chamber in the grinding knife assembly is provided on one side of the grinding knife assembly; the bean box assembly is placed on the bean box on the top of the grinding knife assembly In the top disc groove of the bean box seat of the seat assembly, a cylindrical positioning column protrudes from the bottom of the lower bean gear and extends out of the through hole at the bottom of the bean box, which is fixed to the center hole of the boss of the bean box fixing plate through a C-shaped clamp. A bean lowering opening is provided on one side of the plate surface of the bean box fixing plate. The boss of the bean box fixing plate is inserted into the groove at the bottom of the lower bean gear. At the same time, the bean box fixing plate is buckled and fixed to the raised socket at the bottom of the bean box. The bean box, the lower bean gear and the bean box fixing plate are fixed together as a whole. The transmission gear of the bean box seat assembly passes through the bean box seat and is engaged with the gear hole of the lower bean gear exposed at the bottom of the bean box assembly placed in the top disc groove of the bean box seat. The transmission gear is connected to the motor shaft of the lower bean gear motor at the bottom of the bean box seat assembly. The key structural design features are arched slopes on either side of the inclined surface between the through-hole where the bean lowering gear is located and the inner wall of the bean box assembly. A conical top cover, connecting the two slopes, is located above the through-hole where the bean lowering gear is located. The gap between the bottom of the top cover and the through-hole where the bean lowering gear is located forms the bean inlet. A bean-pushing blade located at the outer diameter of the bean lowering gear, located within the through-hole, extends out of the through-hole. A bean-pushing blade on one side of the bean lowering gear is located at the bean inlet. This creates an umbrella-shaped bean-discharging structure within the bean box. The umbrella-shaped slope, combined with the inclined surface and slope, completely shields the lower bean-pushing blade from the bean-pushing blade, preventing beans from jumping inside the bean box and the bean lowering gear from snagging, enhancing safety.

[0005] A bean box self-locking disk is provided on the top of the lower bean gear in the through hole of the bean box, and the bean-pushing piece of the outer diameter of the lower bean gear exposes the outer diameter of the bean box self-locking disk. The knob column raised in the center of the top of the bean box self-locking disk extends out of the center hole of the top cover of the bean box and is inserted into the knob sleeve engaged with the bottom of the bean box self-locking knob. The top of the bean box self-locking knob extends out of the bean box cover assembly or is hidden in the bean box; the first and second self-locking ribs are symmetrically provided on both sides of the top annular end surface of the bean box self-locking disk. The first and second self-locking ribs are both symmetrically provided with raised A bean box locking rod and a bean box detection rod are respectively positioned between the bottom of the bean box and the top of the bean box self-locking disk. One end of the bean box locking rod is wedged and fixed to the first self-locking rib of the bean box self-locking disk, and the other end of the bean box locking rod is inserted into a lock hole on one side of the bean box base. One end of the bean box detection rod is wedged and fixed to the second self-locking rib of the bean box self-locking disk, and the other end of the bean box detection rod is inserted into a detection hole on the other side of the bean box base, triggering a detection microswitch. The detection microswitch is fixed to the outer diameter of the bean box base via a large pan head screw. Thus, the bean box of the coffee machine bean hopper system has detection and self-locking functions when placed in the bean box base assembly. The self-locking function can be unlocked by turning the bean box self-locking knob on the bean box lid assembly or by opening the bean box lid assembly and turning the bean box self-locking knob inside the bean box.

[0006] The detection microswitch is arranged in a special-shaped groove protruding inwardly of the bean box seat on one side of the outer diameter of the bean box seat. An open detection push rod groove is provided at the bottom of the bean box corresponding to the protrusion in the bean box seat. One end of the detection microswitch of the bean box detection push rod is L-shaped. One side of the L-shaped end of the bean box detection push rod is wedged into the L-shaped groove on one side of the inner wall of the special-shaped groove of the bean box seat. At the same time, the other side of the L-shaped end of the bean box detection push rod extends out of the L-shaped groove on one side of the inner wall of the special-shaped groove and abuts against the movable reed of the detection microswitch.

[0007] The first and second self-locking ribs of the bean box self-locking plate are respectively shaped as special-shaped tracks, one end of which is closer to the center than the other end, and which are raised in the middle. The special-shaped tracks control the travel of the corresponding bean box locking rod and bean box detection push rod, which are respectively located below the slope of the bean box.

[0008] A raised support platform is provided on one side of the bean box fixing plate below the bean box locking rod and / or the bean box detection top rod, and the bottom of the bean box locking rod and / or the bean box detection top rod is limited to the guide rod groove on the top of the support platform.

[0009] The bean discharging gear includes a gear leaf fixing plate and a silicone gear leaf. The outer diameter of the silicone gear leaf is provided with evenly spaced bean-discharging blades. The center of the gear leaf fixing plate has an upwardly curved arc-shaped protrusion. The outer diameter edge of the gear leaf fixing plate is provided with evenly spaced open grooves at the bottom. The open grooves of the gear leaf fixing plate correspond to the bean-discharging blades of the silicone gear leaf. The outer frame of the silicone gear leaf is inserted from the bottom of the gear leaf fixing plate and fixed to the inner wall of the plate opening of the gear leaf fixing plate. At the same time, the bean-discharging blades of the silicone gear leaf are respectively embedded and fixed in the open grooves of the gear leaf fixing plate. The above is a specific embodiment of the bean discharging gear structure, which has good bean discharging stability, is relatively convenient to produce and assemble, and is not prone to clogging.

[0010] The outer corners of the top of the bean-separating blade of the silicone gear leaf are provided with a straight chamfer. The bottom of the straight chamfer of the bean-separating blade is flush with the opening of the through hole in the bean box. The angle between the bean-separating blades of the silicone gear leaf is 15.26 degrees. Therefore, there are 20 bean-separating blades of the silicone gear leaf.

[0011] A switch push rod assembly is provided on at least one inner wall of the bottom of the bean box seat. When the bean box assembly is placed into the top disc groove of the bean box seat of the bean box base assembly, a protrusion at the bone position on one side of the bean box bottom of the bean box assembly triggers the push rod micro switch of the switch push rod assembly; another switch push rod assembly is provided on the bottom of the bean box seat or on the outer diameter side of the knife grinding assembly on the side where the lower bean opening at the protrusion at the bottom of the bean box seat of the bean box base assembly fits with the protrusion blade on the top of the knife grinding assembly of the bean grinding assembly.

[0012] The switch top rod assembly includes a top rod microswitch, a top rod pan head screw, a switch top rod, a top rod bracket, a bracket screw and a top rod spring. The top rod microswitch of the switch top rod assembly is fixed in the switch groove on one side of the outer diameter of the bean box seat by the top rod pan head screw. The movable reed on one side of the top rod microswitch extends out of the switch groove and is aligned with the contact at one end of the switch top rod. The convex portion on the other side of the contact is inserted into the edge groove protruding on the inner wall of the top disk groove of the bean box seat and open at the top. The other end of the switch top rod is inserted into and fixed to the top rod bracket and is provided with a top rod spring on the outer diameter of the bean box seat on one side of the top rod microswitch. The top rod bracket is set on the outer diameter of the bean box seat on the side of the top rod microswitch by the bracket screw. When the bean box assembly is placed in the top disk groove of the bean box seat of the bean box base assembly, the convex point at the bone position on the bean box bottom side of the bean box assembly presses down the convex portion of the switch top rod. The downward movement of the switch top rod drives the contact to press down the movable reed of the top rod microswitch, thereby triggering the top rod microswitch of the switch top rod assembly.

[0013] The grinding bean assembly has a powder distribution fan installed in the powder outlet channel, a powder outlet cover installed at the bottom of the powder outlet channel, and a mesh-shaped end surface of the powder outlet cover. The powder outlet cover is screwed to the bottom of the powder outlet channel. The motor shaft of the powder distribution motor extends into the powder outlet channel and is connected to the powder distribution fan. The top outlet of the powder outlet channel on one side of the grinding bean assembly may be exposed to the body. This structure facilitates uniform powder distribution and discharge by the powder distribution fan, preventing blockage in the powder outlet channel.

[0014] A motor bracket fixing plate is provided at the bottom of the bean box seat of the bean box base assembly, the bean discharge gear motor and the weighing assembly are fixedly arranged on the motor bracket fixing plate, and a raised bean discharge opening at the bottom of the bean box base assembly passes through the motor bracket fixing plate and is engaged with a raised blade on the top of the sharpening assembly.

[0015] The invention has a reasonable structural design, is easy and convenient to operate, can evenly distribute beans and powder, and is not prone to clogging. In particular, the self-locking and detection functions when the bean box is placed are reasonably designed, and have good stability and safety. The invention is suitable for use as a self-locking and detection bean hopper system for coffee machines, as well as a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure after the bean box is removed, in which the bean box seat is a dotted line.

[0018] Figure 3 yes Figure 1 Schematic diagram of the bean box partial explosion structure.

[0019] Figure 4 yes Figure 3 Schematic diagram of the bottom three-dimensional structure.

[0020] Figure 5 yes Figure 4 Schematic diagram of the explosion structure of the lower bean gear.

[0021] Figure 6 yes Figure 2 Schematic diagram of the explosion structure at the detection micro switch and the push rod micro switch.

[0022] Figure 7 yes Figure 1 Schematic diagram of the three-dimensional structure of the bean box.

[0023] Figure 8 yes Figure 7 Schematic diagram of the internal structure of the bean box, where the dotted line represents the bean box structure.

[0024] Figure 9 yes Figure 1 Schematic diagram of the internal structure of the bean box after the bean box cover assembly and the bean box self-locking knob are removed.

[0025] Figure 10 yes Figure 9 Schematic diagram of the internal structure after the bean box is removed.

[0026] Figure 11 yes Figure 1 Schematic diagram of the cross-sectional structure.

[0027] Figure 12 yes Figure 1 Schematic diagram of the bottom three-dimensional structure.

[0028] Figure 13 yes Figure 12 The figure omits the outer shell, powder discharge cover and weighing assembly on one side of the powder discharge channel.

[0029] Figure numbers and names: 1. Bean box assembly, 2. Bean box base assembly, 3. Bean grinding assembly, 4. Bean box self-locking knob, 401. Knob cover, 5. Bean box lid assembly, 6. Bean box locking rod, 7. Bean box detection rod, 8. Bean box, 801. Slope, 802. Top cover, 803. Center hole, 804. Bone position, 9. Bean box self-locking disk, 901. Rotating column, 902. First self-locking rib, 903. Second self-locking rib, 10. Gear leaf fixing disk, 11. Silicone gear leaf, 12. C-shaped clamp, 13 , bean box fixing plate, 1301, support platform, 14, large pan head screw for detection, 15, micro switch for detection, 16, bean box seat, 1601, lock hole, 17, transmission gear, 18, micro switch for push rod, 19, pan head screw for push rod, 20, switch push rod, 21, push rod bracket, 22, bracket screw, 23, push rod spring, 24, switch push rod assembly, 25, lower bean gear motor, 26, weighing assembly, 27, motor bracket fixing piece, 28, powder discharge cover, 29, powder distribution fan blade, 30, powder distribution motor. Implementation Method

[0030] Now, the structure and use of the present invention will be further described in conjunction with the accompanying drawings. Figures 1-13As shown, the bean bin system of the coffee machine includes a bean box assembly 1 and a bean grinding assembly 3. The bean box assembly is provided with a bean box base assembly 2 at the bottom. The bean grinding assembly includes a weighing assembly and a grinding knife assembly. The raised lower bean opening at the bottom of the bean box base assembly fits with the raised blade edge at the top of the grinding knife assembly of the grinding assembly. The motor shaft of the grinding motor of the grinding knife assembly is connected to the grinding knife head assembly in the grinding chamber. The bean box base assembly and the grinding knife assembly are fixedly arranged on the machine body. The notch at the top disc slot of the bean box seat 16 at the top of the bean box base assembly is exposed from the machine body. A powder outlet channel communicating with the grinding chamber in the grinding knife assembly is provided on one side of the grinding knife assembly. The bean box assembly is placed on the top of the bean box seat assembly at the top of the grinding knife assembly. The bean box is mounted on a top plate groove. The bottom of the bean lowering gear protrudes and extends out of the through hole at the bottom of the bean box 8. The cylindrical positioning post is fixed to the center hole of the boss of the bean box fixing plate 13 through a C-shaped clamp 12. A bean lowering opening is provided on one side of the plate surface of the bean box fixing plate. The boss of the bean box fixing plate is inserted into the groove at the bottom of the lower bean gear. At the same time, the bean box fixing plate is buckled and fixed to the raised opening at the bottom of the bean box. The bean box, the lower bean gear and the bean box fixing plate are fixed together as a whole. The transmission gear 17 of the bean box seat assembly passes through the bean box seat and is engaged with the gear hole of the lower bean gear exposed at the bottom of the bean box assembly placed in the top plate groove of the bean box seat. The transmission gear is connected to the motor shaft of the lower bean gear motor 25 at the bottom of the bean box seat assembly.

[0031] The key points of its structural design are as follows: inside the bean box assembly, arched slopes 801 are provided on both sides of the inclined surface between the through-hole where the lower bean gear is set and the inner wall; a conical top cover 802 is provided above the through-hole where the lower bean gear is set, connecting the two slopes into one; the gap between the bottom of the top cover and the through-hole where the lower bean gear is set is a bean inlet hole; the bean-prying piece at the outer diameter of the lower bean gear in the through-hole extends out of the through-hole; and the bean-prying piece on one side of the lower bean gear is located at the bean inlet hole; a bean box self-locking disk 9 is provided on the top of the lower bean gear in the through-hole of the bean box; the bean-prying piece at the outer diameter of the lower bean gear is exposed to the outer diameter of the bean box self-locking disk; a knob column 901 protruding from the center of the top of the bean box self-locking disk extends out of the center hole 803 of the top cover of the bean box and is inserted into the knob sleeve 401 engaged with the bottom of the bean box self-locking knob 4. The top of the bean box self-locking knob extends out of the bean box cover assembly 5; the top annular end surface of the bean box self-locking disk is symmetrically provided with a raised first self-locking rib 902 and a second self-locking rib 903 on both sides, and the first self-locking rib and the second self-locking rib are respectively provided with a bean box locking rod 6 and a bean box detection rod 7 limited between the bottom of the bean box and the top of the bean box self-locking disk. One end of the bean box locking rod is wedged and fixed to the first self-locking rib of the bean box self-locking disk through a notch, and the other end of the bean box locking rod is inserted into the locking hole 1601 on one side of the bean box seat. One end of the bean box detection rod is wedged and fixed to the second self-locking rib of the bean box self-locking disk through a notch, and the other end of the bean box detection rod is inserted into the detection hole on the other side of the bean box seat, triggering the detection microswitch 15, which is fixed to the outer diameter of the bean box seat by a large pan head screw 14. The detection microswitch is mounted within a profiled groove protruding inwardly from one side of the bean container seat's outer diameter. This protrusion within the bean container seat corresponds to an open detection push rod groove at the bottom of the bean container. The detection push rod on one side of the microswitch is L-shaped. One side of the L-shaped end of the detection push rod engages with the L-shaped groove on the inner wall of the bean container seat's profiled groove. Meanwhile, the other side of the L-shaped end of the detection push rod extends out of the L-shaped groove on the inner wall of the profiled groove and abuts against the movable spring of the detection microswitch. The first and second self-locking ribs of the bean container self-locking disk each form a profiled track with one end closer to the center than the other, and a raised center. These profiled tracks control the travel of the corresponding bean container locking rod and detection push rod. The bean container locking rod and detection push rod are each located below the slope of the bean container. A raised support 1301 is provided on one side of the bean box fixing plate below the bean box locking rod, and the bottom of the bean box locking rod is limited to the guide rod groove at the top of the support. Since the travel of the above-mentioned bean box locking rod is far from the outer diameter of the bean box fixing plate, the clamping and limiting effect of the bean box locking rod between the bean box fixing plate and the lower bean gear is poor. Therefore, the support is provided on the bean box fixing plate to make the travel of the bean box locking rod more stable.

[0032] The bean lowering gear includes a gear leaf fixing disk 10 and a silicone gear leaf 11. The outer diameter of the silicone gear leaf is provided with evenly spaced bean-dividing blades. The center of the gear leaf fixing disk is upwardly convex in an arc shape. The bottom of the outer diameter edge of the gear leaf fixing disk is provided with evenly spaced open slots. The open slots of the gear leaf fixing disk correspond to the bean-dividing blades on the outer diameter of the silicone gear leaf. The outer frame of the silicone gear leaf is inserted from the bottom of the gear leaf fixing disk and fixed to the inner wall of the disk opening of the gear leaf fixing disk. At the same time, the bean-dividing blades of the silicone gear leaf are respectively embedded and fixed in the open slots of the gear leaf fixing disk. The outer end corners of the top of the bean-dividing blade of the silicone gear leaf are provided with straight chamfers. The bottom of the straight chamfer of the bean-dividing blade is flush with the opening of the through hole in the bean box. The angle between the bean-dividing blades of the silicone gear leaf is 15.26 degrees.

[0033] A switch push rod assembly 24 is provided on the inner wall of one side of the bottom of the bean box seat. When the bean box assembly is placed in the top disc groove of the bean box seat of the bean box base assembly, the convex point at the bone position 804 on the bottom side of the bean box assembly triggers the push rod micro switch 18 of the switch push rod assembly. Specifically, the switch push rod assembly includes a push rod micro switch 18, a push rod pan head screw 19, a switch push rod 20, a push rod bracket 21, a bracket screw 22 and a push rod spring 23. The push rod micro switch of the switch push rod assembly is fixed in the switch groove on the outer diameter side of the bean box seat by the push rod pan head screw. The movable spring on one side of the push rod micro switch extends out. The switch slot is aligned with the contact at one end of the switch push rod, and the convex part on the other side of the contact is inserted into the edge groove which is convex on the inner wall of the top disc slot of the bean box seat and has an open top. The other end of the switch push rod is inserted into and fixed to the push rod bracket and is provided with a push rod spring on the outer diameter. The push rod bracket is set on the outer diameter of the bean box seat on one side of the push rod micro switch through the bracket screw; when the bean box assembly is placed in the top disc slot of the bean box seat of the bean box base assembly, the convex point at the bone position on one side of the bean box bottom of the bean box assembly presses down the convex part of the switch push rod, and the switch push rod moves downward to drive the contact to press down the movable reed of the push rod micro switch, thereby triggering the push rod micro switch of the switch push rod assembly.

[0034] According to the above structural features, another switch top rod assembly is provided on the bottom of the bean box seat or on the outer diameter side of the grinding assembly on one side where the lower bean opening at the bottom protrusion of the bean box seat of the bean box base assembly and the raised blade edge at the top of the grinding assembly of the bean grinding assembly fit together.

[0035] The bean grinding assembly's powder outlet channel is equipped with a powder distribution fan 29. A powder outlet cover 28, with a meshed end surface, is threadedly secured to the bottom outlet. The motor shaft of a powder distribution motor 30 extends into the outlet channel and connects to the fan. The top outlet of the powder outlet channel on one side of the grinding assembly may be exposed from the machine body. A motor bracket fixing plate 27 is provided at the bottom of the bean hopper base assembly's bean housing. The bean discharge gear motor and weighing assembly 26 are fixed to this motor bracket fixing plate. The raised bean discharge opening at the bottom of the bean hopper base assembly passes through the motor bracket fixing plate and engages with the raised blade on the top of the grinding assembly.

[0036] The specific implementation plan of the bean hopper system of the coffee machine is as follows: First, the bean hopper self-locking knob is rotated 90 degrees clockwise, and the two protrusions of the bean hopper self-locking knob are selected to the notch of the internal threaded groove of the bean hopper cover assembly. At the same time, the bean hopper self-locking disk is driven to rotate 90 degrees clockwise. The ribs of the bean hopper self-locking disk also rotate clockwise, and the bean hopper locking rod and the bean hopper detection push rod are pulled back to the inside in a linear motion. The bean hopper is unlocked and can be removed from the bean hopper. After removing the bean box cover assembly and the bean box self-locking knob, align the notch at the bottom of the bean box self-locking knob with the notch of the bean box self-locking disk below and insert it. Then rotate the bean box self-locking knob 90 degrees counterclockwise to rotate the two protrusions of the bean box self-locking knob to the threaded closed end inside the bean box cover assembly. At the same time, the bean box self-locking disk is rotated 90 degrees counterclockwise. The ribs on the bean box self-locking disk are also rotated counterclockwise. The bean box locking rod and the bean box detection rod are pulled back to the inside in a linear motion. The bean box locking rod is inserted into the lock hole at the bottom of the bean box. The detection micro switch is triggered during the outward linear motion of the bean box detection rod. The bean box completes the self-locking detection and enters the working state.

[0037] The above description is intended to illustrate the technical means of the present invention and is not intended to limit its scope. Obvious improvements or substitutions to the present invention made by those skilled in the art, in combination with existing common knowledge, fall within the scope of the claims. For example, the detection microswitch of the bean box detection rod is configured to extend and trigger the detection microswitch using a different wedging method. The inclined surface between the through hole where the lower bean gear is located and the inner wall of the bean box assembly is configured to be a slope arched on the side of the lower bean opening. The bean box locking rod and the bean box detection rod are configured to move by wedging corresponding guide grooves in the bottom of the bean box.

Claims

1. A self-locking detection type coffee machine bean hopper system, the coffee machine bean hopper system includes a bean box assembly and a bean grinding assembly, the bean box assembly is provided with a bean box base assembly at the bottom, the bean grinding assembly includes a weighing assembly and a grinding knife assembly, the lower bean opening raised at the bottom of the bean box base assembly is engaged with the raised blade edge at the top of the grinding knife assembly of the grinding assembly, the motor shaft of the grinding motor of the grinding knife assembly is connected to the grinding knife head assembly in the grinding chamber, the bean box base assembly and the grinding knife assembly are fixedly arranged on the machine body, the notch at the top disk slot of the bean box seat at the top of the bean box base assembly is exposed from the machine body, and a powder outlet channel communicating with the grinding chamber in the grinding knife assembly is provided on one side of the grinding knife assembly; the bean box assembly is placed on the bean box seat assembly at the top of the grinding knife assembly The bean box seat is in the top disc groove of the bean box seat, the bottom of the lower bean gear protrudes and extends out of the through hole at the bottom of the bean box, and is fixed to the center hole of the boss of the bean box fixing plate through a C-shaped clamp. A bean lowering opening is provided on one side of the disc surface of the bean box fixing plate, and the boss of the bean box fixing plate is inserted into the groove at the bottom of the lower bean gear. At the same time, the bean box fixing plate is buckled and fixed to the raised sleeve at the bottom of the bean box. The bean box, the lower bean gear and the bean box fixing plate are fixed together as a whole. The transmission gear of the bean box seat assembly passes through the bean box seat and is engaged with the gear hole of the lower bean gear exposed at the bottom of the bean box assembly placed in the top disc groove of the bean box seat. The transmission gear is connected to the motor shaft of the lower bean gear motor at the bottom of the bean box seat assembly; this is characterized in that The bean box assembly has arched slopes on both sides of the inclined surface between the through hole where the lower bean gear is set and the inner wall inside the bean box, and a conical top cover connecting the two slopes is provided above the through hole where the lower bean gear is set. The gap between the bottom of the top cover and the through hole where the lower bean gear is set is a bean inlet hole, and the bean-pumping piece at the outer diameter of the lower bean gear in the through hole extends out of the through hole, and the bean-pumping piece on one side of the lower bean gear is located at the bean inlet hole; a bean box self-locking disk is provided on the top of the lower bean gear in the through hole of the bean box, and the bean-pumping piece at the outer diameter of the lower bean gear is exposed to the outer diameter of the bean box self-locking disk, and a first self-locking rib and a second self-locking rib are symmetrically provided on both sides of the top annular end surface of the bean box self-locking disk, and a bean box locking rod and a bean box detection top rod are respectively provided on both sides of the first self-locking rib and the second self-locking rib, which are limited between the bottom of the bean box and the top of the bean box self-locking disk.

2. The self-locking detection coffee machine bean hopper system according to claim 1, characterized in that The knob column with a raised center on the top of the bean box self-locking disk extends out of the center hole of the top cover of the bean box and is inserted into the knob sleeve engaged with the bottom of the bean box self-locking knob. The top of the bean box self-locking knob extends out of the bean box cover assembly or is hidden in the bean box; one end of the bean box locking rod is wedged and fixed to the first self-locking rib of the bean box self-locking disk, and the other end of the bean box locking rod is inserted into the lock hole on one side of the bean box seat; one end of the bean box detection rod is wedged and fixed to the second self-locking rib of the bean box self-locking disk, and the other end of the bean box detection rod is inserted into the detection hole on the other side of the bean box seat to trigger the detection micro switch.

3. The self-locking detection coffee machine bean hopper system according to claim 2, characterized in that The detection microswitch is arranged in a special-shaped groove protruding inwardly of the bean box seat on one side of the outer diameter of the bean box seat. An open detection push rod groove is provided at the bottom of the bean box corresponding to the protrusion in the bean box seat. One end of the detection microswitch of the bean box detection push rod is L-shaped. One side of the L-shaped end of the bean box detection push rod is wedged into the L-shaped groove on one side of the inner wall of the special-shaped groove of the bean box seat. At the same time, the other side of the L-shaped end of the bean box detection push rod extends out of the L-shaped groove on one side of the inner wall of the special-shaped groove and abuts against the movable reed of the detection microswitch.

4. The self-locking detection coffee machine bean hopper system according to claim 2, characterized in that The first and second self-locking ribs of the bean box self-locking plate are respectively shaped as special-shaped tracks, one end of which is closer to the center than the other end, and which are raised in the middle. The special-shaped tracks control the travel of the corresponding bean box locking rod and bean box detection push rod, and the bean box locking rod and bean box detection push rod are respectively located below the slope of the bean box.

5. The self-locking detection coffee machine bean hopper system according to claim 2, characterized in that A raised support platform is provided on one side of the bean box fixing plate below the bean box locking rod and / or the bean box detection top rod, and the bottom of the bean box locking rod and / or the bean box detection top rod is limited to the guide rod groove on the top of the support platform.

6. The self-locking detection coffee machine bean hopper system according to claim 1, characterized in that The bean lowering gear includes a gear leaf fixing disk and a silicone gear leaf. The outer diameter of the outer frame of the silicone gear leaf is provided with equidistantly distributed bean-popping pieces. The middle of the gear leaf fixing disk is upwardly protruded in an arc shape. The bottom of the outer diameter edge of the gear leaf fixing disk is provided with equidistantly distributed open grooves. The opening grooves of the gear leaf fixing disk respectively correspond to the bean-popping pieces of the outer diameter of the silicone gear leaf. The outer frame of the silicone gear leaf is inserted into the inner wall of the disk opening from the bottom of the gear leaf fixing disk and is fixed to the gear leaf fixing disk. At the same time, the bean-popping pieces of the silicone gear plate are respectively inlaid and fixed in the opening grooves of the gear leaf fixing disk.

7. The self-locking detection coffee machine bean hopper system according to claim 6, characterized in that The outer end corner of the top of the bean-pushing piece of the silicone gear leaf is provided with a straight chamfer, the bottom of the straight chamfer of the bean-pushing piece is flush with the hole opening of the through hole in the bean box, and the angle between the bean-pushing pieces of the silicone gear leaf is 15.26°.

8. The self-locking detection coffee machine bean hopper system according to claim 1, characterized in that A switch push rod assembly is provided on at least one inner wall of the bottom of the bean box seat. When the bean box assembly is placed into the top disc groove of the bean box seat of the bean box base assembly, a protrusion at the bone position on one side of the bean box bottom of the bean box assembly triggers the push rod micro switch of the switch push rod assembly; another switch push rod assembly is provided on the bottom of the bean box seat or on the outer diameter side of the knife grinding assembly on the side where the lower bean opening at the protrusion at the bottom of the bean box seat of the bean box base assembly fits with the protrusion blade on the top of the knife grinding assembly of the bean grinding assembly.

9. The self-locking detection coffee machine bean hopper system according to claim 8, characterized in that The switch top rod assembly includes a top rod microswitch, a top rod pan head screw, a switch top rod, a top rod bracket, a bracket screw and a top rod spring. The top rod microswitch of the switch top rod assembly is fixed in the switch groove on one side of the outer diameter of the bean box seat by the top rod pan head screw. The movable reed on one side of the top rod microswitch extends out of the switch groove and is aligned with the contact at one end of the switch top rod. The convex portion on the other side of the contact is inserted into the edge groove protruding on the inner wall of the top disk groove of the bean box seat and open at the top. The other end of the switch top rod is inserted into and fixed to the top rod bracket and is provided with a top rod spring on the outer diameter of the bean box seat on one side of the top rod microswitch. The top rod bracket is set on the outer diameter of the bean box seat on the side of the top rod microswitch by the bracket screw. When the bean box assembly is placed in the top disk groove of the bean box seat of the bean box base assembly, the convex point at the bone position on the bean box bottom side of the bean box assembly presses down the convex portion of the switch top rod. The downward movement of the switch top rod drives the contact to press down the movable reed of the top rod microswitch, thereby triggering the top rod microswitch of the switch top rod assembly.

10. The self-locking detection coffee machine bean hopper system according to claim 1, characterized in that The powder outlet channel of the bean grinding assembly is provided with a powder distribution fan blade, the bottom channel opening of the powder outlet channel is provided with a powder outlet cover, the end surface of the powder outlet cover is provided with a mesh, the powder outlet cover is fixed to the bottom channel opening of the powder outlet channel by means of threads, the motor shaft of the powder distribution motor extends into the powder outlet channel and is connected to the powder distribution fan blade; the top channel opening of the powder outlet channel on one side of the bean grinding assembly is exposed to the machine body.

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