Bean box of coffee machine capable of preventing powder from flying and weighing

Abstract

The utility model relates to a coffee machine bean box capable of preventing powder from flying, which aims at solving the problems that a weighing component of the existing like product is poor in structural design, easy to damage, large in error and short in service life, and the powder flying prevention effect at a bean feeding opening of a bean box and a grinder is poor. The coffee machine bean box is characterized in that a weighing assembly of the coffee machine bean box is arranged on one side of the bottom of a bean box base through a connecting support and / or a support fixing piece, and the two ends of a weighing module of the weighing assembly are arranged on the top of a weighing module support through weighing fixing screws respectively. One side of the weighing module support is hinged and fixed to a protruding hinge lug on one side of the fixed base through a fixing pin and a clamping spring, an end protrusion on the other side of the weighing module support is inserted into an adjusting hole in the other side of the fixed base, and a buffer spring is arranged between the fixed base on the side and the weighing module support. The end part of the side of the weighing module bracket swings in the adjusting hole of the fixed base; a maze blocking cover and a corresponding maze blocking ring are arranged at a bean discharging opening of the bean box base assembly, and a circular blocking piece is arranged in the middle of the lower portion of the maze blocking cover.

Description

TECHNICAL FIELD

[0001] The utility model relates to coffee machine bean box with grinder, and is a coffee machine bean box of preventing flying powder weighing. BACKGROUND

[0002] Coffee machine is a kind of electric equipment for coffee making, generally divided into semi-automatic and full-automatic two kinds, wherein semi-automatic coffee machine is a kind of traditional coffee machine of Italy, and it is according to manual operation to grind powder, press powder, fill powder, brew, manually remove residue;Among them, full-automatic coffee machine realizes the automatic control of the whole process of brewing coffee such as preheating, cleaning, grinding, pressing, brewing and flushing powder, and brews coffee according to scientific data and program, and is equipped with perfect protection system, and is convenient to use, and coffee can be obtained by pressing lightly. The powder channel of the grinding assembly of some coffee machines is provided with a powder distribution fan blade structure for uniform powder distribution, the bottom of the bean seat of the bean box is generally provided with a weighing assembly, and the grinding assembly is arranged at the bottom of the bean seat;Such as the patent document in China discloses application number 202411768963.6, application publication date 2025.02.14, invention name "coffee machine grinder of uniform powder distribution";But the weighing assembly structure of the above product and similar products is poor, mainly because the weighing assembly lacks spring buffering function, and the sensor is easily damaged, the weighing error is large, the equipment service life is short and other problems caused by the impact and vibration interference of goods placement;At the same time, the lower bean port of the bean box and the grinder lacks labyrinth structure design, it is difficult to prevent coffee beans from flying everywhere during grinding, and the limit linkage structure design is poor, and the technical problems to be improved. SUMMARY

[0003] To overcome the above shortcomings, the utility model aims at providing a kind of coffee machine bean box of preventing flying powder weighing to the field, so that it solves the technical problems that the weighing assembly of the existing similar products lacks spring buffering function, and the sensor is easily damaged, the weighing error is large, the equipment service life is short and other problems caused by the impact and vibration interference of goods placement, and the lower bean port of the bean box and the grinder lacks labyrinth structure design, it is difficult to prevent coffee beans from flying everywhere during grinding, and the limit linkage structure design is poor and needs to be improved. Its purpose is realized through the following technical scheme.

[0004] The application discloses a kind of anti-flying powder weighing coffee machine bean box, which includes bean box assembly and grinding assembly, the bottom of the bean box assembly is provided with bean box base assembly, the bottom of the bean box base assembly is provided with weighing assembly on one side, the grinding assembly is provided with grinding knife assembly, the bottom of the bean box base assembly is provided with lower bean mouth, and the top of the grinding knife assembly of the grinding assembly is provided with protruding knife mouth, the motor shaft of the grinding motor of the grinding knife assembly is connected with the grinding knife head assembly in the grinding cavity, the bean box base assembly and the grinding knife assembly are fixedly arranged in the machine body, the top of the bean box base assembly is provided with bean box seat, the top disc groove of the bean box seat is exposed from the machine body, the grinding knife assembly is provided with powder outlet channel communicated with the grinding cavity in the grinding knife assembly;The bean box assembly is placed in the top disc groove of the bean box seat of the grinding assembly, the protruding cylindrical positioning column in the center of the bottom of the gear blade bean disc is fixed in the center hole of the boss of the bean box fixing disc through C-shaped clamp, the lower bean mouth is arranged on one side of the disc surface of the bean box fixing disc, the boss of the bean box fixing disc is sleeved into the groove of the bottom of the gear blade bean disc, and the bean box fixing disc is fixedly connected with the sleeve opening of the bottom of the bean box, the bean box, the gear blade bean disc and the bean box fixing disc are fixedly connected to form an integrated whole, the transmission gear of the bean box seat is connected with the gear hole of the gear blade bean disc exposed from the bottom of the bean box through the bean box seat, and the transmission gear is connected with the motor shaft of the synchronous motor at the bottom of the bean box seat;The structure design points of the weighing assembly are that the weighing assembly is arranged on one side of the bottom of the bean box seat through connecting support and / or support fixing sheet, the weighing module of the weighing assembly is arranged on the top of the weighing module support through weighing fixing screw at two ends respectively, the weighing module support is hingedly connected with the hinge lug protruding on one side of the fixed base through fixing pin and snap spring, and the end of the other side of the weighing module support is inserted into the adjusting hole on the other side of the fixed base, the fixed base on this side is provided with buffer spring between the weighing module support, and the end of the weighing module support on this side is swung in the adjusting hole of the fixed base with an angle of 2-5 degrees.

[0005] The lower bean mouth of the bean box base assembly is provided with a labyrinth cover, the hole of the labyrinth cover is protruding downward and outward, the top of the grinding knife assembly of the grinding assembly is provided with a labyrinth cover ring, the hole of the labyrinth cover ring is inwardly inclined and reduced, the hole of the labyrinth cover is sleeved into the hole of the labyrinth cover ring with parallel inclined angle, and the middle of the protruding knife mouth at the top of the grinding knife assembly below the hole of the labyrinth cover is provided with a circular cover plate protruding upward through ribs.

[0006] The bean box is provided with a bean splash-proof grid, the two symmetrical column feet at the bottom of the bean splash-proof grid are fixed to the bean box fixing disc through the bean box, the bean splash-proof grid is located in the inner diameter of the upper cover of the bean box, and the bean box self-locking knob extends out of the knob hole in the middle of the bean splash-proof grid.

[0007] The toothed gear leaf bean disc provided in the bean box assembly is provided with an arch-shaped slope on both sides of the inclined surface between the through hole and the inner wall, a top cover connected to the two slopes and in a conical shape is arranged above the through hole of the toothed gear leaf bean disc, the cover opening below the top cover is aligned with the edge of the circle surface of the toothed gear leaf bean disc, gaps are respectively arranged between the circle surface of the toothed gear leaf bean disc and the arch-shaped part below the toothed gear leaf bean disc, and a bean blocking silica gel sheet is arranged below the gap on one side of the bean box in the upper part of the lower bean opening of the bean box fixing disc.

[0008] The top of the toothed gear leaf bean disc in the through hole of the bean box is provided with a bean box self-locking disc, the bean disc piece of the outer diameter of the toothed gear leaf bean disc is exposed to the outer diameter of the bean box self-locking disc, the knob column protruding from the center hole of the top cover of the bean box is sleeved 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 or is hidden in the bean box, the top of the bean box self-locking disc is provided with a first self-locking rib and a second self-locking rib which are symmetrically arranged on both sides of the annular end face, the bean box locking rod and the bean box top rod which are limited between the bottom of the bean box and the top of the bean box self-locking disc are respectively arranged on both sides of the first self-locking rib and the second self-locking rib, one end of the bean box locking rod is wedge-fixed to the first self-locking rib of the bean box self-locking disc, meanwhile, the stud at the end of the bean box locking rod is inserted into the first self-locking sliding groove on the side and the tooth opening on the one side of the gear at the top of the toothed gear leaf bean disc below, the other end of the bean box locking rod is inserted into the locking hole on one side of the bean box seat, one end of the bean box top rod is wedge-fixed to the second self-locking rib of the bean box self-locking disc, meanwhile, the stud at the end of the bean box top rod is inserted into the second self-locking sliding groove on the side and the tooth opening on the other side of the gear at the top of the toothed gear leaf bean disc below, the other end of the bean box top rod is inserted into the detection hole on the other side of the bean box seat and triggers the detection micro switch, and the bean box locking rod is in a Z shape and the bean box top rod is in a straight line shape.

[0009] The first self-locking rib and the second self-locking rib of the bean box self-locking disc are respectively shaped as a special-shaped track with one end close to the center and the other end away from the center, the stroke of the corresponding bean box locking rod and the bean box top rod is controlled through the special-shaped track, and the bean box locking rod and the bean box top rod are respectively located below the slope of the bean box.

[0010] One side of the bean box fixing disc below the bean box locking rod and / or the bean box top rod is provided with a protruding support table, and a guide rod slot limited to the top of the support table is arranged at the bottom of the bean box locking rod and / or the bean box top rod.

[0011] The gear leaf dial disc comprises a gear leaf fixing disc and silica gel gear leaves, the outer frame of the silica gel gear leaves is provided with dial bean pieces distributed at equal intervals, the middle of the gear leaf fixing disc is upwardly provided with a circular arc-shaped protrusion, the bottom of the outer diameter of the gear leaf fixing disc is provided with open grooves distributed at equal intervals, the open grooves of the gear leaf fixing disc correspond to the dial bean pieces of the outer diameter of the silica gel gear leaves respectively, the outer frame of the silica gel gear leaves is sleeved into the inner wall of the disc opening of the gear piece fixing disc from the bottom of the gear piece fixing disc and is fixedly attached to the gear piece fixing disc, and meanwhile, the dial bean pieces of the silica gel gear pieces are fixedly embedded in the open grooves of the gear leaf fixing disc.

[0012] The outer side end angle of the top of the dial bean piece of the silica gel gear leaf is provided with a straight chamfer, and the bottom of the straight chamfer of the dial bean piece is flush with the hole opening of the through hole in the bean box.

[0013] The inner walls of the two sides of the inner bottom of the bean box seat assembly are symmetrically provided with self-locking tongue assemblies, and at least one side of the outer diameter of the bean box tray is symmetrically provided with a top rod micro switch assembly; when the bean box assembly is placed into the top disc groove of the bean box seat of the bean box base assembly, the bottom side of the bean box assembly triggers the micro switch of the top rod micro switch assembly, and the two side locking grooves of the bottom of the bean box assembly are limited and fixed to the self-locking tongues of the self-locking tongue assemblies.

[0014] At least one side of the inner wall of the inner bottom of the bean box seat is provided with a top rod micro switch assembly, and when the bean box assembly is placed into the top disc groove of the bean box seat of the bean box base assembly, the bottom side of the bean box assembly triggers the top rod micro switch of the top rod micro switch assembly; the bottom of the bean box seat is provided with another top rod micro switch assembly on one side of the sleeve fitting position of the bottom bean opening of the bottom protrusion of the bean box seat and the top protruding knife opening of the knife assembly of the grinding assembly.

[0015] The top rod micro switch assembly comprises a top rod micro switch, a top rod disc head screw, a switch top rod, a top rod support, a support screw and a top rod spring, the bean box seat outside the top rod micro switch assembly is provided with a side baffle, the top rod micro switch of the top rod micro switch assembly is fixed in the switch groove on one side of the outer diameter of the bean box seat through the top rod disc head screw, the moving spring sheet on one side of the top rod micro switch extends out of the switch groove and is aligned with the contact point on one end of the switch top rod, the convex part on the other side of the contact point is inserted into the edge groove of the top disc groove inner wall protrusion and the top opening of the bean box seat, the other end of the switch top rod is sleeved into the top rod support and is provided with a top rod spring on the outer diameter, and the top rod support is arranged on the outer diameter of the bean box seat on one side of the top rod micro switch through the support screw; when the bean box assembly is placed into the top disc groove of the bean box seat of the bean box base assembly, the convex point at the bone site of the bottom side of the bean box assembly presses the convex part of the switch top rod, the switch top rod moves downward to drive the moving spring sheet of the contact point to press the moving spring sheet of the top rod micro switch, and the top rod micro switch of the top rod micro switch assembly is triggered.

[0016] The powder distribution fan blade is arranged in the powder outlet channel of the grinding assembly, the bottom channel opening of the powder outlet channel is provided with a powder outlet mesh cover, the end surface of the powder outlet mesh cover is provided with mesh holes, the powder outlet mesh cover is fixed to the bottom channel opening of the powder outlet channel through screw threads, and the motor shaft of the powder distribution motor extends into the powder outlet channel and is connected with the powder distribution fan blade.

[0017] The coffee machine bean box has the advantages of reasonable structure design, convenient and simple operation, uniform distribution of beans and powder, difficulty in blockage, good stability of the weighing assembly, absorption of impact force by the spring of the weighing assembly through elastic deformation, stable weighing process, and suitability for use as a fly powder prevention and weighing coffee machine bean box and structural improvement of similar products. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a partial explosion structure schematic view of the coffee machine bean box.

[0019] Figure 2 is Figure 1 is a partial explosion structure schematic view of the bean box base assembly of the coffee machine bean box, and the buffer spring in the weighing assembly is a dashed line.

[0020] Figure 3 is Figure 1 is a three-dimensional structure schematic view of the weighing assembly of the coffee machine bean box.

[0021] Figure 4 is Figure 3 is an explosion structure schematic view of the weighing assembly of the coffee machine bean box.

[0022] Figure 5 is Figure 3 is a side view structure schematic view of the state that the weighing assembly of the coffee machine bean box is installed on the bean box base assembly.

[0023] Figure 6 is Figure 5 is a partial explosion state cross-sectional structure schematic view of the coffee machine bean box.

[0024] Figure 7 is Figure 1 is an assembly state side view structure schematic view of the coffee machine bean box, and the weighing assembly, the labyrinth baffle ring and the labyrinth baffle cover are cut open.

[0025] Figure 8 is Figure 7 is a three-dimensional structure schematic view of one side of the powder outlet channel cover of the coffee machine bean box, and the dashed line is the powder outlet channel cover.

[0026] Figure 9 is Figure 8 is a bottom three-dimensional structure schematic view of the coffee machine bean box.

[0027] Figure 10 is Figure 1 is an explosion structure schematic view of the bean box assembly of the coffee machine bean box.

[0028] Figure 11 yes Figure 10 The diagram shows the internal structure of the bean box after assembly. The bean box lid and anti-splash grille are omitted in the diagram.

[0029] Figure 12 yes Figure 11 The bottom structure diagram shows the bean box fixing plate, with the dotted line in the diagram.

[0030] Figure 13 yes Figure 12 A cross-sectional view of the bean box assembly.

[0031] Attached Figures and Their Names: 1. Bean Box Assembly; 101. Bean Box Self-Spinning Lock Button; 102. Bean Box Lid; 103. Anti-Bean Splash Grille; 104. Bean-Blocking Silicone Sheet; 105. Bean Box; 106. Bean Box Locking Rod; 107. Bushing; 108. Bean Box Top Rod; 109. Bean Box Self-Locking Disc; 1091. First Self-Locking Rib; 1092. Second Self-Locking Rib; 110. Gear-Type Bean Dispensing Disc; 1101. Gear; 111. Bean Box Fixing Disc; 1111. Support Platform; 112. C-Shaped Clamp; 2. Bean Box Base Assembly; 3. Labyrinth Ring; 4. Grinding Assembly; 401. Circular Baffle; 5. Cover Fixing 6. Fixed screw, 7. Maze cover, 8. Bean box holder, 9. Connecting bracket, 10. Weighing module, 11. Snap ring, 12. Fixing pin, 13. Weighing module bracket, 14. Mounting screw, 15. Buffer spring, 16. Fixed base, 17. Hinge ear, 18. Adjustment hole, 19. Weighing fixing screw, 20. Bracket fixing piece, 21. Synchronous motor, 22. Transmission gear, 23. Detection micro switch, 24. Self-locking tongue assembly, 25. Top rod micro switch assembly, 26. Side baffle, 27. Powder outlet channel cover, 28. Powder distribution motor, 29. Powder distribution fan blade, 20. Powder outlet mesh cover. Implementation

[0032] The structure and use of this utility model will now be further described with reference to the accompanying drawings. Figures 1-13As shown, the coffee machine bean box includes a bean box assembly 1 and a grinding assembly 4, the bottom of the bean box assembly is provided with a bean box base assembly 2, one side of the bottom of the bean box base assembly is provided with a weighing assembly, the grinding assembly is provided with a grinding knife assembly, the lower bean opening of the bottom of the bean box base assembly is fitted with the top protruding knife opening of the grinding knife assembly of the grinding assembly, the motor shaft of the grinding motor of the grinding knife assembly is connected with the grinding knife head assembly in the grinding cavity, the bean box base assembly and the grinding knife assembly are fixedly arranged on the machine body, the bean box seat 7 on the top of the bean box base assembly is exposed to the machine body through the slot on the top disc groove, one side of the grinding knife assembly is provided with a powder outlet channel communicated with the grinding cavity in the grinding knife assembly; the bean box assembly is placed in the top disc groove of the bean box seat on the top of the grinding assembly, the cylindrical positioning column protruding from the bottom of the bean box 105 through the through hole is fixed to the center hole of the boss of the bean box fixing disc 111 through the C-shaped clamp 112, one side of the disc surface of the bean box fixing disc is provided with a lower bean opening, the boss of the bean box fixing disc is fitted into the groove on the bottom of the gear leaf bean disc, at the same time, the bean box fixing disc is buckled and fixed to the sleeve opening protruding from the bottom of the bean box, the bean box, the gear leaf bean disc and the bean box fixing disc are fixedly matched as a whole, the transmission gear 19 of the bean box seat assembly is fitted and connected through the gear hole of the gear leaf bean disc exposed on the bottom of the bean box placed in the top disc groove of the bean box seat, the transmission gear is connected with the motor shaft of the synchronous motor 18 on the bottom of the bean box seat assembly. The weighing assembly is arranged on one side of the bottom of the bean box seat through the connecting bracket 8 and / or the bracket fixing piece 17, the weighing module 9 of the weighing assembly is arranged on the top of the weighing module bracket 12 through the weighing fixing screw 16 at both ends respectively, one side of the weighing module bracket is hingedly fixed to the hinge lug 1501 protruding from one side of the fixed base 15 through the fixing pin 11 and the snap spring 10, the end of the other side of the weighing module bracket is protrudingly inserted into the adjusting hole 1502 of the other side of the fixed base, the fixed base on this side and the weighing module bracket are provided with the buffer spring 14, the end of the weighing module bracket on this side swings in the adjusting hole of the fixed base with an angle of 4 degrees. At the same time, the lower bean opening of the bean box base assembly is provided with a labyrinth cover 6, the hole opening of the labyrinth cover is protruding downward and outward, the top protruding knife opening of the grinding knife assembly of the grinding assembly is provided with a labyrinth cover ring, the hole opening of the labyrinth cover ring is inwardly and obliquely reduced, the hole opening of the labyrinth cover is fitted into the hole opening of the labyrinth cover ring with a parallel oblique angle, the middle of the top protruding knife opening of the grinding knife assembly below the hole opening of the labyrinth cover is provided with a circular cover plate 401 protruding upward through the rib. The bean box is provided with a bean splash prevention grid 103, the column feet of the bean splash prevention grid are fixed to the bean box fixing disc 111 through the bean box, the bean splash prevention grid is located in the inner diameter of the top cover of the bean box, the self-locking knob 101 of the bean box extends out of the knob hole in the middle of the bean splash prevention grid.

[0033] The slope between the through hole and the inner wall of the gear leaf bean disc setting hole of the bean box assembly is symmetrically provided with an arched slope on both sides, a top cover connected to both sides of the slope and tapering is arranged above the through hole of the gear leaf bean disc setting hole, the cover opening below the top cover is aligned with the edge of the circle surface of the gear leaf bean disc, and a gap is arranged between the circle surface of the gear leaf bean disc and the arched part below the bean box on both sides. A bean box locking disc 109 is arranged on the top of the gear leaf bean disc in the through hole of the bean box, the bean disc piece of the outer diameter of the gear leaf bean disc is exposed to the outer diameter of the bean box locking disc, the knob column protruding from the center of the top of the bean box locking disc extends through the center hole of the top cover of the bean box, and is sleeved into the knob sleeve engaged with the bottom of the bean box locking knob. The top of the bean box locking knob extends out of the bean box cover 102. The top of the bean box locking disc is symmetrically provided with a first locking rib 1091 and a second locking rib 1092, the bean box locking rod 106 and the bean box top rod 108 are respectively arranged between the bottom of the bean box and the top of the bean box locking disc, one end of the bean box locking rod is wedge-shapedly fixed to the first locking rib of the bean box locking disc, and the end of the bean box locking rod is inserted into the locking hole of one side of the bean box seat through an axle sleeve 107 and the tooth opening of one side of the gear 1101 of the gear leaf bean disc on the top. The other end of the bean box top rod is inserted into the detection hole of the other side of the bean box seat and triggers the detection micro switch. The bean box locking rod is Z-shaped, and the bean box top rod is straight. The first locking rib and the second locking rib of the bean box locking disc are respectively shaped rails with one end close to the center and the other end away from the center, and the middle part is protruding. The travel of the corresponding bean box locking rod and the bean box top rod is controlled through the shaped rail, and the bean box locking rod and the bean box top rod are respectively arranged below the slope of the bean box. The bean box fixing disc below the bean box top rod is provided with a protruding support 1111, and the bottom of the bean box locking rod and / or the bean box top rod is limited to the guide rod groove on the top of the support.

[0034] The gear leaf dial disc comprises a gear leaf fixing disc and silica gel gear leaves, the outer frame of the silica gel gear leaves is provided with dial beans equidistantly distributed on the outer diameter, the middle of the gear leaf fixing disc is upwardly provided with a circular arc protrusion, the bottom of the outer diameter of the gear leaf fixing disc is provided with open grooves equidistantly distributed, the open grooves of the gear leaf fixing disc correspond to the dial beans of the outer diameter of the silica gel gear leaves respectively, the outer frame of the silica gel gear leaves is sleeved into the inner wall of the disc opening of the gear leaf fixing disc from the bottom of the gear leaf fixing disc and is fixedly attached to the gear leaf fixing disc, meanwhile, the dial beans of the silica gel gear leaves are fixedly embedded in the open grooves of the gear leaf fixing disc. The top of the dial beans of the silica gel gear leaves is provided with a straight chamfer on the outer side end, and the bottom of the straight chamfer of the dial beans is flush with the hole opening of the through hole in the bean box.

[0035] The inner walls of the two sides of the inner bottom of the bean box seat assembly are symmetrically provided with self-locking tongue assemblies 21, and at least one side of the outer diameter of the bean box tray is symmetrically provided with a top rod micro switch assembly; when the bean box assembly is placed into the top disc groove of the bean box seat assembly, the bone point of the bottom of the bean box assembly triggers the micro switch of the top rod micro switch assembly 22, and the two side locking grooves of the bottom of the bean box assembly are limited and fixed to the self-locking tongues of the self-locking tongue assemblies. At least one side of the inner wall of the inner bottom of the bean box seat is provided with a top rod micro switch assembly, and when the bean box assembly is placed into the top disc groove of the bean box seat assembly, the bone point of the bottom of the bean box assembly triggers the top rod micro switch of the top rod micro switch assembly; the bottom of the bean box seat is provided with another top rod micro switch assembly on one side of the sleeve joint of the top protruding knife opening of the grinding assembly and the bottom of the bean box seat on one side of the outer diameter of the grinding assembly. The top rod micro switch assembly comprises a top rod micro switch, a top rod disc head screw, a switch top rod, a top rod support, a support screw and a top rod spring, the side baffle 23 is arranged at the bean box seat outside the top rod micro switch assembly, the top rod micro switch of the top rod micro switch assembly is fixed in the switch groove on one side of the outer diameter of the bean box seat through the top rod disc head screw, the moving spring sheet on one side of the top rod micro switch extends out of the switch groove and is aligned with the contact point on one end of the switch top rod, the convex part on the other side of the contact point is inserted into the side groove with a top opening on the inner wall of the top disc groove of the bean box seat, the other end of the switch top rod is sleeved into the top rod support and is provided with a top rod spring on the outer diameter, and the top rod support is arranged on the outer diameter of the bean box seat on one side of the top rod micro switch through the support screw; when the bean box assembly is placed into the top disc groove of the bean box seat assembly, the convex point of the bone point on one side of the bottom of the bean box assembly presses the convex part of the switch top rod, the switch top rod moves downward to drive the moving spring sheet of the top rod micro switch to trigger the top rod micro switch of the top rod micro switch assembly.

[0036] The powder distribution fan blade 26 is arranged in the powder outlet channel of the grinding assembly, the bottom channel opening of the powder outlet channel is provided with a powder outlet mesh cover 27, the end surface of the powder outlet mesh cover is provided with mesh holes, the powder outlet mesh cover is fixed to the bottom channel opening of the powder outlet channel through screw threads, the motor shaft of the powder distribution motor 25 extends into the powder outlet channel and is connected with the powder distribution fan blade; the top channel opening of the powder outlet channel on one side of the grinding assembly or the exposed machine body.

[0037] According to the above structural features, the bean box weighing assembly of the existing similar products is prone to problems such as damage of the sensor, large weighing error, short service life and the like when facing the impact of placing goods and vibration interference without spring buffering function. After the spring buffering function is added to the bean box weighing assembly, the impact force is absorbed through the elastic deformation of the spring to stabilize the weighing process, the sensor is protected when facing the impact, and the labyrinth structure is additionally arranged at the lower bean opening of the grinder to prevent the coffee beans from splashing everywhere during the grinding process.

[0038] The structure design of the coffee machine bean box is mainly updated and iterated on the basis of the original, mainly composed of a bean box assembly, a weighing module assembly and a grinder assembly, and the main features are concentrated on the weighing module assembly. A rectangular opening is arranged in the bean box tray in the bean box base assembly, a same-shaped groove is arranged on the opening, a screw hole is arranged at each corner, a rectangular labyrinth cover is arranged in the groove, a circular opening is arranged at the center of the labyrinth cover, a round boss is arranged below the opening and corresponds to the upper opening and cooperates with the labyrinth cover ring of the grinder assembly, a screw hole is arranged at each corner of the cover, corresponding to the screw hole of the bean box seat, and the labyrinth cover is fixedly installed on the bean box seat through the cover fixing screw 5. Meanwhile, four screw columns are arranged at the bottom of the bean box seat, cooperated with the circular opening of the lower connecting bracket to be fixed, the connecting bracket is semicircular, a cylindrical support is arranged at the center, a circular groove is arranged at the opening on one side of the center, a rectangular groove is arranged at the inner bottom, two screw holes are arranged at the center of the groove and correspond to the screw holes on the front end of the lower weighing module, and square grooves are also arranged at the outer bottom and cooperated with the lower weighing module to limit the position; a weighing module support is arranged below the weighing module, the weighing module support is correspondingly strip-shaped, a cylindrical boss is arranged at each side of the rear end in the transverse direction and the middle is opened, two rib positions are arranged at the rear end of the weighing module support to cooperate with the rear end of the weighing module, two circular openings are arranged in the middle of the two rib positions and cooperated with the screw holes at the rear end of the weighing module to be fixed, a rectangular boss is arranged at the front end of the weighing module support and cooperated with the square opening at the full end of the lower fixed base, a runway circular opening is arranged at the front end of the weighing module support, a cylindrical boss is arranged at the bottom of the opening and cooperated with the cylinder at the front end of the lower fixed base; a boss is arranged at the middle of the rear end of the fixed base, a cylindrical boss is arranged at the middle of the boss in the transverse direction as a hinged ear, an opening is arranged in the middle and cooperated with the two transverse cylindrical bosses at the rear end of the weighing module support to be fixed by penetrating the fixing pin, the front end of the fixing pin is provided with a snap spring, runway circular openings are arranged between the fixed bases and correspond to the two screw holes on the upper weighing module support, cylindrical bosses are arranged at the four corners of the fixed base and provided with screw holes, namely, the mounting screws 13 are arranged at the corners of the weighing assembly, a hook-shaped support is arranged at the front end, a cylinder is arranged on the support and cooperated with the cylindrical boss at the bottom of the front end of the upper weighing module support, a rectangular opening is arranged on the support and cooperated with the boss at the front end of the weighing module support to limit the position. The above-mentioned weighing module is in L shape, the weighing module is a single-point cantilever weighing sensor, and a weighing piece is arranged at one end of the bridge arm of the weighing module.

[0039] The working principle of the weighing assembly of the coffee machine bean box is as follows: when the bean box assembly is subjected to downward extrusion pressure, the fixed pin drives the weighing module of the connecting weighing assembly and the bean box assembly to move downward, the buffer spring is extruded in the process of moving downward, the buffer spring rebounds upward after being extruded, and the adjusting hole at the front end of the fixed base limits the end protrusion of the front end of the weighing module support, so as to limit the activity space and protect the weighing module.

Claims

1. A fly ash-free weighing coffee machine bean box, the coffee machine bean box comprising a bean box assembly (1) and a grinding assembly (4), the bottom of the bean box assembly is provided with a bean box base assembly (2), the bottom of the bean box base assembly is provided with a weighing assembly on one side, the grinding assembly is provided with a grinding knife assembly, the protruding lower bean port on the bottom of the bean box base assembly is sleeved with the protruding knife port on the top of the grinding knife assembly, the motor shaft of the grinding motor of the grinding knife assembly is connected with the grinding knife head assembly in the grinding cavity, the bean box base assembly and the grinding knife assembly are fixedly arranged on the machine body, the bean box seat (7) on the top of the bean box base assembly is exposed on the machine body through the slot on the top disc groove, and the grinding knife assembly is provided with a powder outlet channel communicated with the grinding cavity in the grinding knife assembly; the bean box assembly is placed in the top disc groove of the bean box seat on the top of the grinding assembly, the protruding cylindrical positioning column in the center of the bottom of the gear leaf bean disc (110) is fixed to the center hole of the boss of the bean box fixing disc (111) through the C-shaped clamp (112) and protrudes through the through hole in the bottom of the bean box (105), the bottom of the bean box fixing disc is provided with a lower bean port, the boss of the bean box fixing disc is sleeved into the groove on the bottom of the gear leaf bean disc, and the bean box fixing disc is buckled and fixed to the sleeve port on the bottom of the bean box, the bean box, the gear leaf bean disc and the bean box fixing disc are fixedly matched as a whole, the transmission gear (19) of the bean box seat assembly is sleeved and connected with the gear hole of the gear leaf bean disc exposed on the bottom of the bean box assembly through the bean box seat and placed in the top disc groove of the bean box seat, the transmission gear is connected with the motor shaft of the synchronous motor (18) on the bottom of the bean box seat assembly; characterized in that The weighing assembly is arranged on one side of the bottom of the bean box seat (7) through the connecting support (8) and / or the support fixing plate (17), the weighing module (9) of the weighing assembly is arranged at the top of the weighing module support (12) through the weighing fixing screw (16) at both ends respectively, one side of the weighing module support is hingedly fixed to the hinged lug (1501) protruding on one side of the fixed base (15) through the fixing pin (11) and the snap spring (10), the end of the other side of the weighing module support is protrudingly inserted into the adjusting hole (1502) on the other side of the fixed base, the buffer spring (14) is arranged between the fixed base on this side and the weighing module support, and the end of the weighing module support on this side swings in the adjusting hole of the fixed base at an angle of 2-5 degrees.

2. A fly-powder-proof weighing coffee machine bean container according to claim 1, characterized in that The lower bean opening of the bean box base assembly (2) is provided with a labyrinth cover (6), the orifice of the labyrinth cover is protruding downward and outward, the top of the grinding blade assembly of the grinding assembly (4) is provided with a labyrinth cover ring (3), the orifice of the labyrinth cover ring is inwardly and obliquely reduced, the orifice of the labyrinth cover is parallel to the inclined angle of the orifice of the labyrinth cover ring, and the top of the grinding blade assembly below the orifice of the labyrinth cover is provided with a circular cover plate (401) protruding upward through a rib in the middle.

3. The fly-powder-proof weighing coffee machine bean container according to claim 1, characterized in that The bean box (105) is provided with a bean splash prevention grid (103), the column feet symmetrically arranged in pairs at the bottom of the bean splash prevention grid are fixed to the bean box fixing disc (111) through the bean box, the bean splash prevention grid is located in the inner diameter of the top cover of the bean box, and the bean box self-locking knob (101) extends out of the knob hole in the middle of the bean splash prevention grid.

4. The fly-powder-proof weighing coffee machine bean container according to claim 1, characterized in that The inner gear blade bean stirring disc (110) of the bean box assembly (1) is provided with an inclined slope on both sides of the inclined surface between the through hole and the inner wall, an arched slope is arranged on both sides of the inclined surface, a top cover is arranged above the through hole of the inner gear blade bean stirring disc, the top cover is connected to the two slopes and is in the shape of a cone, the cover opening below the top cover is aligned with the edge of the circle surface of the inner gear blade bean stirring disc, and gaps are arranged between the blades on both sides of the outer diameter of the circle surface of the inner gear blade bean stirring disc and the arched portion below the inner gear blade bean stirring disc, and a bean blocking silica gel sheet (104) is arranged below the gap on one side of the inner gear blade bean stirring disc above the lower bean opening of the bean box fixing disc (111).

5. A fly-powder-proof, load-weighing coffee machine bean container according to claim 4, characterized in that The through-hole gear leaf bean disc (111) of the bean box (105) is provided with a bean box self-locking disc (109) at the top, the outer diameter of the gear leaf of the bean disc is exposed outside the outer diameter of the bean box self-locking disc, the knob column protruding at the center of the top of the bean box self-locking disc extends through the center hole of the top cover of the bean box, and is sleeved into the knob sleeve engaged with the bottom of the bean box self-locking knob (101). The top of the bean box self-locking knob extends out of the bean box cover (102) or is hidden in the bean box; the top of the bean box self-locking disc is provided with protruding first and second self-locking ribs (1091) and (1092) on both sides of the annular end face, and the first and second self-locking ribs are respectively provided with a bean box lock rod (106) and a bean box top rod (108) limited between the bottom of the bean box and the top of the bean box self-locking disc. One end of the bean box lock rod is wedge-fixed to the first self-locking rib of the bean box self-locking disc, and the end of the bean box lock rod is inserted into the first self-locking sliding groove on one side through an axle sleeve (107), and the tooth opening of the gear wheel (1101) on one side of the gear wheel at the top of the gear leaf bean disc (110) below. The other end of the bean box lock rod is inserted into the lock hole on one side of the bean box seat (7). One end of the bean box top rod is wedge-fixed to the second self-locking rib of the bean box self-locking disc, and the end of the bean box top rod is inserted into the second self-locking sliding groove on the other side through another axle sleeve, and the tooth opening of the gear wheel on the other side of the gear wheel at the top of the gear leaf bean disc below. The other end of the bean box top rod is inserted into the detection hole on the other side of the bean box seat and triggers the detection micro switch (20). The bean box lock rod is Z-shaped, and the bean box top rod is straight.

6. A fly-powder-proof weighing coffee machine bean container according to claim 5, characterized in that The first and second self-locking ribs (1091) and (1092) of the bean box self-locking disc (109) are respectively shaped as a heteromorphic track with one end close to the center and the other end away from the center, and protruding in the middle. The travel of the corresponding bean box lock rod (106) and bean box top rod (108) is controlled through the heteromorphic track, and the bean box lock rod and the bean box top rod are respectively located below the slope of the bean box (105).

7. The fly-powder-proof weighing coffee machine bean container according to claim 5, characterized in that The side of the bean box fixing disc (111) below the bean box lock rod (106) and / or the bean box top rod (108) is provided with a protruding supporting table (1111), and the bottom of the bean box lock rod and / or the bean box top rod is limited in the guide rod groove on the top of the supporting table.

8. The fly-powder-proof, weigh coffee machine bean container according to claim 1, characterized in that The gear leaf bean disc (110) comprises a gear leaf fixing disc and a silica gel gear leaf. The outer frame of the silica gel gear leaf is provided with equally distributed bean disc pieces. The middle of the gear leaf fixing disc is upwardly protruding in a circular arc shape. The outer diameter edge of the gear leaf fixing disc is provided with equally distributed open grooves. The open grooves of the gear leaf fixing disc correspond to the bean disc pieces of the outer diameter of the silica gel gear leaf. The outer frame of the silica gel gear leaf is sleeved into the inner wall of the disc opening of the gear piece fixing disc and fixed thereto. The bean disc pieces of the silica gel gear piece are respectively embedded and fixed in the open grooves of the gear leaf fixing disc.

9. A fly-powder-proof weighing coffee machine bean container according to claim 8, characterized in that The top outer side end angle of the bean disc piece of the silica gel gear leaf is provided with a straight chamfer, and the bottom of the straight chamfer of the bean disc piece is flush with the hole opening of the through hole in the bean box (105).

10. The fly-powder-proof, weigh coffee machine bean container according to claim 1, characterized in that The inner wall of the inner bottom of the bean box seat (7) of the bean box base assembly (2) is symmetrically provided with a self-locking tongue assembly (21), and the outer diameter of at least one side of the bean box tray is symmetrically provided with a top rod micro switch assembly (22); when the bean box assembly (1) is placed into the inner top disc groove of the bean box seat of the bean box base assembly, the micro switch of the top rod micro switch assembly is triggered by the bone point of one side of the bottom of the bean box assembly, and the locking tongue of the self-locking tongue assembly is fixedly buckled in the locking groove of the bottom of the bean box assembly.

11. A fly-powder-proof weighing coffee machine bean container according to claim 10, characterized in that The inner wall of the inner bottom of the bean box seat (7) of the bean box base assembly (2) is symmetrically provided with a self-locking tongue assembly (21), and the outer diameter of at least one side of the bean box tray is symmetrically provided with a top rod micro switch assembly (22); when the bean box assembly (1) is placed into the inner top disc groove of the bean box seat of the bean box base assembly, the micro switch of the top rod micro switch assembly is triggered by the bone point of one side of the bottom of the bean box assembly, and the locking tongue of the self-locking tongue assembly is fixedly buckled in the locking groove of the bottom of the bean box assembly.

12. A fly-powder-proof weighing coffee machine bean container according to claim 11, characterized in that The inner wall of the inner bottom of the bean box seat (7) of the bean box base assembly (2) is symmetrically provided with a self-locking tongue assembly (21), and the outer diameter of at least one side of the bean box tray is symmetrically provided with a top rod micro switch assembly (22); when the bean box assembly (1) is placed into the inner top disc groove of the bean box seat of the bean box base assembly, the micro switch of the top rod micro switch assembly is triggered by the bone point of one side of the bottom of the bean box assembly, and the locking tongue of the self-locking tongue assembly is fixedly buckled in the locking groove of the bottom of the bean box assembly.

13. The fly-powder-proof, weigh coffee machine bean container according to claim 1, characterized in that The top rod micro switch assembly (22) comprises a top rod micro switch, a top rod disc head screw, a switch top rod, a top rod support, a support screw and a top rod spring, the bean box seat (7) outside the top rod micro switch assembly is provided with a side baffle (23), the top rod micro switch of the top rod micro switch assembly is fixed in the switch groove on one side of the outer diameter of the bean box seat through the top rod disc head screw, the moving spring sheet on one side of the top rod micro switch extends out of the switch groove and is aligned with the contact point on one end of the switch top rod, the convex part on the other side of the contact point is inserted into the edge groove with the convex part on the inner wall of the top disc groove of the bean box seat and the top opening, the other end of the switch top rod is sleeved into the top rod support and is provided with the top rod spring outside the outer diameter, and the top rod support is arranged on one side of the outer diameter of the bean box seat through the support screw; when the bean box assembly (1) is placed into the top disc groove of the bean box seat of the bean box base assembly (2), the convex point of the bone point on one side of the bottom of the bean box (105) of the bean box assembly presses the convex part of the switch top rod, the switch top rod moves downward to drive the contact point to press the moving spring sheet of the top rod micro switch, and the top rod micro switch of the top rod micro switch assembly is triggered. The powder distribution fan blade (26) is arranged in the powder outlet channel of the grinding assembly (4), the powder outlet channel is provided with a powder outlet mesh cover (27) at the bottom channel opening, the end surface of the powder outlet mesh cover is provided with a mesh hole, the powder outlet mesh cover is fixed at the bottom channel opening of the powder outlet channel through threads, and the motor shaft of the powder distribution motor (25) extends into the powder outlet channel and is connected with the powder distribution fan blade; the top channel opening of the powder outlet channel on one side of the grinding assembly or the exposed machine body.

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