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

Abstract

The invention relates to a coffee machine bean box capable of preventing powder from flying, and aims to solve the technical problems that a weighing assembly of an existing similar 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 invention relates to a coffee machine bean box with a grinder, in particular to a fly-powder-proof weighing coffee machine bean box. Background Art

[0002] A coffee machine is an electrical device used for making coffee. It is generally divided into semi-automatic and fully automatic types. The semi-automatic coffee machine is a traditional Italian coffee machine that performs manual operations such as grinding, pressing, loading, brewing, and manually removing residues. The fully automatic coffee machine automatically controls the entire coffee brewing process including preheating, cleaning, grinding, pressing, brewing, and draining. It brews coffee according to scientific data and procedures, and is equipped with a complete protection system. It is easy to use and you can get coffee with just a light touch. Some existing coffee machines have a powder distribution fan structure in the powder channel of the grinding assembly to facilitate uniform powder distribution. A weighing assembly is generally provided at the bottom of the bean seat for placing the bean box, and the grinding assembly is arranged at the bottom of the bean seat; such as the application number 202411768963.6 disclosed in the Chinese patent document, the application publication date is 2025.02.14, and the invention name is "A coffee machine grinder with uniform powder distribution"; but the weighing assembly structure design in the above-mentioned products and similar products is poor, mainly because there is a lack of spring buffering function in the weighing assembly, which is easy to cause sensor damage, large weighing error, short equipment life and other problems in the face of impact and vibration interference caused by the placement of goods; at the same time, the bean box and the lower bean mouth of the grinder lack a maze structure design, which makes it difficult to prevent coffee beans from splashing around during the grinding process, and the limit linkage structure design of some micro switches is poor, which is a technical problem that needs to be improved. Summary of the invention

[0003] In order to overcome the above shortcomings, the purpose of the present invention is to provide a coffee bean box for weighing coffee machines with anti-flying powder to the art, so as to solve the technical problems that the weighing components of existing similar products lack spring buffering function, face the impact of cargo placement and vibration interference, easily cause sensor damage, large weighing error, short equipment life, lack of labyrinth structure design between the bean box and the lower bean opening of the grinder, it is difficult to prevent coffee beans from splashing around during the grinding process, and some limit linkage structure designs are poor and need to be improved. The purpose is achieved through the following technical solutions.

[0004] A bean box for an anti-flying powder weighing coffee machine, the bean box of the coffee machine comprises a bean box assembly and a grinding assembly, the bean box assembly is provided with a bean box base assembly at the bottom, a weighing assembly is provided on one side of the bottom of the bean box base assembly, a grinding knife assembly is provided in the grinding assembly, a lower bean opening protruding from the bottom of the bean box base assembly is sleeved with a raised blade edge on the top of the grinding knife assembly of the grinding assembly, a motor shaft at a grinding motor of the grinding knife assembly is connected with a grinding knife head assembly in a grinding chamber, the bean box base assembly and the grinding knife assembly are fixedly arranged on a machine body, a notch at a top disk groove of a bean box seat 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 in a top disk groove of a bean box seat of a bean box seat assembly at the top of the grinding assembly, a cylindrical positioning column protruding from the bottom center of a gear leaf bean-pushing disk and extending out of a through hole at the bottom of the bean box is fixed to a center hole at a boss of a bean box fixed disk through a C-shaped clamp, a lower bean opening is provided on one side of a disk surface of the bean box fixed disk, and the boss of the bean box fixed disk is sleeved into a gear leaf bean-pushing disk 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 gear leaf bean-pushing plate and the bean box fixing plate are fixedly matched as a whole, the transmission gear of the bean box seat assembly passes through the bean box seat and is inserted into the gear hole at the gear leaf bean-pushing plate exposed at the bottom of the bean box assembly in the plate slot at the top of the bean box seat, and the transmission gear is connected to the motor shaft of the synchronous motor at the bottom of the bean box seat assembly. The key points of its structural design are that the weighing assembly is arranged on one side of the bottom of the bean box seat through a connecting bracket and / or a bracket fixing sheet, and the two ends of the weighing module of the weighing assembly are respectively arranged on the top of the weighing module bracket through weighing fixing screws, one side of the weighing module bracket is hingedly fixed to the raised hinge ear on one side of the fixed base through a fixing pin and a retaining spring, and the end of the other side of the weighing module bracket is protruding and inserted into the adjustment hole on the other side of the fixed base, and a buffer spring is arranged between the fixed base on this side and the weighing module bracket, and the end of the weighing module bracket on this side swings in the adjustment hole of the fixed base with an angle of 2-5 degrees. Therefore, when the bean box assembly is pressed downward by 3 kg, the weighing assembly is supported by the support below to protect the weighing module from further deformation, thereby protecting the weighing module; at the same time, the end portion of the weighing module bracket has an optimal swing amplitude of 4.33 degrees in the adjustment hole of the fixed base, and the corresponding connection hinged matching part is limited so that the weighing module bracket has a 4.33° activity space.

[0005] A labyrinth cover is provided at the lower bean opening of the bean box base assembly, the opening of the labyrinth cover is convex downward and turned outward, a labyrinth ring is provided at the raised blade edge of the grinding assembly, the opening of the labyrinth ring is narrowed inwardly, the opening of the labyrinth cover is inserted into the opening of the labyrinth ring at a parallel bevel, and a circular baffle protruding upward through a rib is provided in the middle of the raised blade edge of the grinding assembly below the opening of the labyrinth cover. The openings of the labyrinth cover and the labyrinth ring are parallel and beveled, and the circular baffle is used to block the openings, so as to prevent coffee powder from splashing into the machine and affecting the weighing accuracy.

[0006] The bean box is provided with an anti-bean splashing grille, and column feet symmetrically arranged in pairs at the bottom of the anti-bean splashing grille are fixed to the bean box fixing plate through the bean box. The anti-bean splashing grille is located at the inner diameter of the top cover above the bean box, and the bean box self-locking knob extends out of the knob hole in the middle of the anti-bean splashing grille.

[0007] The bean box assembly has arched slopes symmetrically arranged on both sides of the inclined surface between the through hole and the inner wall of the bean box where the gear leaf bean-pushing plate is set, and a conical top cover connecting the two side slopes as one is arranged above the through hole where the gear leaf bean-pushing plate is set, and the cover opening below the top cover is aligned with the edge of the ring surface of the gear leaf bean-pushing plate and abuts against each other, and gaps are arranged between the leaves on both sides of the outer diameter of the ring surface of the gear leaf bean-pushing plate and the lower part of the arched part in the upper bean box respectively, and a bean-blocking silicone sheet is arranged on one side below the gap on one side of the bean box above the lower bean opening of the bean box fixing plate.

[0008] A bean box self-locking disk is provided on the top of the gear leaf bean-pushing disk in the through hole of the bean box, and the bean-pushing piece of the outer diameter of the gear leaf bean-pushing disk exposes the outer diameter of the bean box self-locking disk. The knob column protruding 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 or is hidden in the bean box; the first and second self-locking ribs are symmetrically provided with protruding ribs on both sides of the top annular end surface of the bean box self-locking disk, and the bean box locking rod and the bean box top rod are respectively provided on both sides of the first and second self-locking ribs, which are limited between the bottom of the bean box and the top of the bean box self-locking disk. The notch at one end of the bean box locking rod is wedged At the same time as the first self-locking rib is fixed to the bean box self-locking disk, the column head at the end of the bean box locking rod is inserted into the first arc-shaped self-locking slide groove on this side through a shaft sleeve, and the tooth opening on one side of the gear on the top of the lower gear leaf bean-pushing disk, the other end of the bean box locking rod is inserted into the locking hole on one side of the bean box seat, and the notch at one end of the bean box top rod is wedged and fixed to the second self-locking rib of the bean box self-locking disk. At the same time, the column head at the end of the bean box top rod is inserted into the second arc-shaped self-locking slide groove on this side through another shaft sleeve, and the tooth opening on the other side of the gear on the top of the lower gear leaf bean-pushing disk, 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 the detection micro switch is triggered; the bean box locking rod is in a Z shape, and the bean box top rod is in a straight shape.

[0009] The first self-locking rib and the second self-locking rib of the bean box self-locking plate are respectively in the form of special-shaped tracks with one end closer to the center than the other end away from the center and protruding in the middle. The travel of the corresponding bean box locking rod and the bean box top rod is controlled by the special-shaped tracks. The bean box locking rod and the bean box top rod are respectively located below the slope of the bean box.

[0010] 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 top rod, and the bottom of the bean box locking rod and / or the bean box top rod is limited to the guide rod groove at the top of the support platform.

[0011] The gear leaf bean-popping plate comprises a gear leaf fixing plate and a silicone gear leaf. The outer diameter of the outer frame of the silicone gear leaf is provided with equally spaced bean-popping pieces. The middle of the gear leaf fixing plate is convexly upward in an arc shape. The bottom of the outer diameter edge of the gear leaf fixing plate is provided with equally spaced open grooves. The opening grooves of the gear leaf fixing plate 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 from the bottom of the gear leaf fixing plate into the inner wall of the plate opening of the gear leaf fixing plate and fixed thereto. 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 plate.

[0012] The outer end corner of the top of the bean-pushing piece of the silica gel gear leaf is provided with a straight chamfer, and 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.

[0013] The inner walls on both sides of the bottom of the bean box seat of the bean box base 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 in the top tray groove of the bean box seat of the bean box base assembly, the bone position on one side of the bottom of the bean box assembly triggers the micro switch of the top rod micro switch assembly, and at the same time, the ribs in the buckle grooves on both sides of the bottom of the bean box assembly are limitedly buckled and fixed to the self-locking tongues of the self-locking tongue assembly.

[0014] At least one side of the inner wall of the bottom of the bean box seat is provided with a push rod micro switch assembly. When the bean box assembly is placed in the top plate groove of the bean box seat of the bean box base assembly, the bone point on one side of the bean box bottom of the bean box assembly triggers the push rod micro switch of the push rod micro switch assembly; another push rod micro switch assembly is provided on the bottom of the bean box seat or on the outer diameter side of the knife sharpening assembly on one side of the lower bean opening at the protrusion at the bottom of the bean box seat of the bean box base assembly and the protrusion blade at the top of the knife sharpening assembly of the grinding assembly.

[0015] The push rod micro switch assembly comprises a push rod micro switch, a push rod pan head screw, a switch push rod, a push rod bracket, a bracket screw and a push rod spring. A side baffle is provided at the bean box seat outside the push rod micro switch assembly. The push rod micro switch of the push rod micro switch assembly is fixed in a switch slot on one side of the outer diameter of the bean box seat by the push rod pan head screw. The moving spring on one side of the push rod micro switch extends out of the switch slot and is aligned with the contact at one end of the switch push rod. The convex part on the other side of the contact is inserted into the top plate of the bean box seat. The inner wall of the groove is raised and the top is open. 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 plate groove 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 moving reed of the push rod micro switch, thereby triggering the push rod micro switch of the push rod micro switch assembly.

[0016] The powder outlet channel of the grinding component is provided with powder distribution blades, the bottom channel opening of the powder outlet channel is provided with a powder outlet mesh cover, the end face 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 by threads, the motor shaft of the powder distribution motor extends into the powder outlet channel and is connected with the powder distribution blades; the top channel opening of the powder outlet channel on one side of the grinding component is exposed from the machine body.

[0017] The invention has reasonable structural design, convenient and simple operation, uniform bean feeding and powder distribution, and is not prone to blockage. In particular, the weighing component has good stability, and the spring of the weighing component absorbs impact force and stabilizes the weighing process through elastic deformation. The invention is suitable for use as a flying powder-proof weighing bean box for coffee machines, as well as a structural improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial exploded structural schematic diagram of the present invention.

[0019] Figure 2 yes Figure 1 Schematic diagram of the exploded structure of the bean box base component, in which the buffer spring in the weighing component is a dotted line.

[0020] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional structure of the weighing component.

[0021] Figure 4 yes Figure 3 Schematic diagram of the exploded structure of the weighing component.

[0022] Figure 5 yes Figure 3 The weighing assembly is installed on the bean box seat assembly in a side view.

[0023] Figure 6 yes Figure 5 Schematic diagram of the cross-sectional structure of part of the explosion state.

[0024] Figure 7 yes Figure 1 A schematic diagram of the side view structure of the assembly state is provided, in which the weighing component, the labyrinth retaining ring and the labyrinth retaining cover are cross-sectionally viewed.

[0025] Figure 8 yes Figure 7 A schematic diagram of the three-dimensional structure of one side of the powder outlet channel cover, in which the dotted line is the powder outlet channel cover.

[0026] Fig. 9 yes Figure 8 Schematic diagram of the bottom three-dimensional structure.

[0027] Fig.10 yes Figure 1 Schematic diagram of the exploded structure of the bean box component.

[0028] Fig.11 yes Fig.10 Schematic diagram of the structure inside the bean box after the bean box assembly is assembled, with the bean box cover and anti-bean splashing grille omitted in the figure.

[0029] Fig.12 yes Fig.11 Schematic diagram of the bottom structure, in which the dotted line is the bean box fixing plate.

[0030] Fig.13 yes Fig.12 Schematic diagram of the cross-sectional structure of the bean box assembly.

[0031] Serial number and name of the attached drawings: 1. Bean box assembly, 101. Bean box self-spinning lock button, 102. Bean box cover, 103. Anti-bean splashing 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 plate, 1091. First self-locking rib, 1092. Second self-locking rib, 110. Gear leaf bean plate, 1101. Gear 111. Bean box fixed plate, 1111. Support platform, 112. C-shaped clamp, 2. Bean box base assembly, 3. Labyrinth retaining ring, 4. Grinding assembly, 401. Circular retaining piece, 5. Retaining cover fixed plate Fixed screw, 6, labyrinth cover, 7, bean box seat, 8, connecting bracket, 9, weighing module, 10, retaining spring, 11, fixing pin, 12, weighing module bracket, 13, mounting screw, 14, buffer spring, 15, fixed base, 1501, hinged ear, 1502, adjustment hole, 16, weighing fixing screw, 17, bracket fixing plate, 18, synchronous motor, 19, transmission gear, 20, detection micro switch, 21, self-locking tongue assembly, 22, push rod micro switch assembly, 23, side baffle, 24, powder outlet channel cover, 25, powder distribution motor, 26, powder distribution fan blade, 27, powder outlet mesh cover. Implementation

[0032] Now, the structure and use of the present invention will be further described in conjunction with the accompanying drawings. Figure 1-Figure 13As shown, the bean box of the coffee machine includes a bean box assembly 1 and a grinding assembly 4, a bean box base assembly 2 is provided at the bottom of the bean box assembly, a weighing assembly is provided at one side of the bottom of the bean box base assembly, a sharpening assembly is provided in the grinding assembly, a raised lower bean opening at the bottom of the bean box base assembly is fitted with a raised blade edge at the top of the sharpening assembly of the grinding assembly, a motor shaft at the grinding motor of the sharpening assembly is connected to a grinding cutter head assembly in the grinding chamber, the bean box base assembly and the sharpening assembly are fixedly arranged on the machine body, a notch at the top plate groove of the bean box seat 7 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 sharpening assembly is provided on one side of the sharpening assembly; the bean box assembly is placed on the top plate of the bean box seat assembly at the top of the grinding assembly In the groove, the cylindrical positioning column with the bottom center of the gear leaf bean-pushing plate 110 protruding and extending out of the through hole at the bottom of the bean box 105 is fixed to the center hole of the boss of the bean box fixing plate 111 through a C-shaped clamp 112. A bean lowering opening is provided on one side of the disk 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 gear leaf bean-pushing plate. At the same time, the bean box fixing plate is buckled and fixed to the protruding sleeve at the bottom of the bean box. The bean box, the gear leaf bean-pushing plate and the bean box fixing plate are fixedly matched as a whole. The transmission gear 19 of the bean box seat assembly passes through the bean box seat and is inserted into the gear hole at the gear leaf bean-pushing plate exposed at the bottom of the bean box assembly in the disk groove at the top of the bean box seat. The transmission gear is connected to the motor shaft of the synchronous motor 18 at the bottom of the bean box seat assembly. The above-mentioned 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 plate 17. The two ends of the weighing module 9 of the weighing assembly are respectively arranged on the top of the weighing module bracket 12 through the weighing fixing screws 16. One side of the weighing module bracket is hingedly fixed to the hinge ear 1501 raised on one side of the fixed base 15 through the fixing pin 11 and the retaining spring 10. The end protrusion on the other side of the weighing module bracket is inserted into the adjustment hole 1502 on the other side of the fixed base. A buffer spring 14 is provided between the fixed base on this side and the weighing module bracket. The end of the weighing module bracket on this side swings at an angle of 4 degrees in the adjustment hole of the fixed base. At the same time, a labyrinth cover 6 is provided at the lower bean opening of the bean box base assembly, the opening of the labyrinth cover is convex downward and turned outward, a labyrinth ring is provided at the raised blade edge of the grinding assembly of the grinding assembly, the opening of the labyrinth ring is narrowed obliquely inward, the opening of the labyrinth cover is inserted into the opening of the labyrinth ring at a parallel oblique angle, and a circular baffle 401 protruding upward through ribs is provided in the middle of the raised blade edge of the grinding assembly below the opening of the labyrinth cover. An anti-bean splashing grille 103 is provided in the bean box, and the column feet symmetrically arranged in pairs at the bottom of the anti-bean splashing grille are fixed to the bean box fixed plate 111 through the bean box, the anti-bean splashing grille is located at 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 anti-bean splashing grille.

[0033] The bean box assembly has arched slopes symmetrically arranged on both sides of the inclined surface between the through hole and the inner wall of the bean box where the gear leaf bean-pushing plate is set, and a conical top cover connecting the two side slopes as one is arranged above the through hole where the gear leaf bean-pushing plate is set, and the cover opening below the top cover is aligned with the edge of the ring surface of the gear leaf bean-pushing plate and abuts against each other, and gaps are arranged between the leaves on both sides of the outer diameter of the ring surface of the gear leaf bean-pushing plate and the lower part of the arched part in the upper bean box respectively, and a bean-blocking silicone sheet 104 is arranged on one side below the gap on one side of the bean box above the lower bean opening of the bean box fixing plate. A bean box self-locking disk 109 is provided on the top of the gear leaf bean-pushing disk in the through hole of the bean box, and the bean-pushing piece of the outer diameter of the gear leaf bean-pushing disk exposes the outer diameter of the bean box self-locking disk. The knob column protruding 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, and the top of the bean box self-locking knob extends out of the bean box cover 102; the top annular end surface of the bean box self-locking disk is symmetrically provided with a first self-locking rib 1091 and a second self-locking rib 1092, and the first self-locking rib and the second self-locking rib are respectively provided with a bean box locking 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 disk, and a notch at one end of the bean box locking rod While being wedged and fixed to the first self-locking rib of the bean box self-locking disk, the column head at the end of the bean box locking rod is inserted into the first arc-shaped self-locking groove on this side and the tooth opening on one side of the gear 1101 at the top of the gear leaf bean-pushing disk below through a shaft sleeve 107, and the other end of the bean box locking rod is inserted into the locking hole on one side of the bean box seat, and the notch at one end of the bean box top rod is wedged and fixed to the second self-locking rib of the bean box self-locking disk, while the column head at the end of the bean box top rod is inserted into the second arc-shaped self-locking groove on this side and the tooth opening on the other side of the gear at the top of the gear leaf bean-pushing disk below through another shaft sleeve, and 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 the detection micro switch is triggered; the bean box locking rod is in a Z shape, and the bean box top rod is in a straight shape. The first self-locking rib and the second self-locking rib of the bean box self-locking plate are respectively shaped as special-shaped tracks with one end closer to the center than the other end away from the center and protruding in the middle, and the travel of the corresponding bean box locking rod and bean box top rod is controlled by the special-shaped tracks, and the bean box locking rod and bean box top rod are respectively located below the slope of the bean box. A protruding support platform 1111 is provided on one side of the bean box fixing plate below the bean box top rod, and the bottom of the bean box locking rod and / or bean box top rod is limited to the guide rod groove at the top of the support platform.

[0034] The gear leaf bean-popping plate comprises a gear leaf fixing plate and a silicone gear leaf. The outer diameter of the outer frame of the silicone gear leaf is provided with equally spaced bean-popping pieces. The middle of the gear leaf fixing plate is upwardly convex in an arc shape. The outer diameter edge bottom of the gear leaf fixing plate is provided with equally spaced open grooves. The open grooves of the gear leaf fixing plate 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 from the bottom of the gear leaf fixing plate into the inner wall of the plate opening of the gear leaf fixing plate and fixed thereto. At the same time, the bean-popping pieces of the silicone gear plate are respectively inlaid and fixed in the open grooves of the gear leaf fixing plate. The outer end corner of the top of the bean-popping piece of the silicone gear leaf is provided with a straight chamfer, and the bottom of the straight chamfer of the bean-popping piece is flush with the opening of the through hole in the bean box.

[0035] The inner walls on both sides of the bottom of the bean box seat of the bean box base assembly are symmetrically provided with self-locking tongue assemblies 21, and the outer diameter of the bean box tray is symmetrically provided with a push rod micro switch assembly on at least one side; when the bean box assembly is placed in the top plate groove of the bean box seat of the bean box base assembly, the bone position on one side of the bottom of the bean box assembly triggers the micro switch of the push rod micro switch assembly 22, and at the same time, the ribs in the buckle grooves on both sides of the bottom of the bean box assembly are limitedly buckled and fixed to the self-locking tongue of the self-locking tongue assembly. At least one side of the inner wall of the bottom of the bean box seat is provided with a push rod micro switch assembly, and when the bean box assembly is placed in the top plate groove of the bean box seat of the bean box base assembly, the bone position on one side of the bottom of the bean box assembly triggers the push rod micro switch of the push rod micro switch assembly; another push rod micro switch assembly is provided on the bottom of the bean box seat or on the outer diameter side of the sharpening assembly at the side where the lower bean mouth at the bottom convex part of the bean box seat of the bean box base assembly and the top convex blade of the grinding assembly fits. The push rod micro switch assembly includes a push rod micro switch, a push rod pan head screw, a switch push rod, a push rod bracket, a bracket screw and a push rod spring. A side baffle 23 is provided at the bean box seat outside the push rod micro switch assembly. The push rod micro switch of the push rod micro switch assembly is fixed in the switch slot on one side of the outer diameter of the bean box seat by the push rod pan head screw. The moving spring on one side of the push rod micro switch extends out of the switch slot and is aligned with the contact at one end of the switch push rod. The convex part on the other side of the contact is inserted into the top plate of the bean box seat. The inner wall of the groove is raised and the top is open. 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 plate groove 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 moving reed of the push rod micro switch, thereby triggering the push rod micro switch of the push rod micro switch assembly.

[0036] A powder distribution fan blade 26 is provided in the powder outlet channel of the above-mentioned grinding component, and a powder outlet mesh cover 27 is provided at the bottom channel opening of the powder outlet channel. The end face of the powder outlet mesh cover is provided with mesh holes, and the powder outlet mesh cover is fixed to the bottom channel opening of the powder outlet channel by 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 component may be exposed from the machine body.

[0037] According to the above structural characteristics, the existing bean box weighing components of similar products without spring buffering function are prone to damage to sensors, large weighing errors, and short equipment life when facing the impact and vibration interference of cargo placement. After adding the spring buffering function, the bean box weighing component uses the elastic deformation of the spring to absorb the impact force, stabilize the weighing process, and protect the sensor when facing the impact. In addition, a maze structure is added between the bean box and the lower bean opening of the grinder to prevent coffee beans from splashing around during the grinding process.

[0038] The structural design of the bean box of the coffee machine is mainly updated and iterated on the original basis, and is mainly composed of a bean box assembly, a weighing module assembly, and a grinder assembly. The main features are concentrated on the weighing module assembly. A rectangular opening is provided in the bean box tray inside the bean box seat of the bean box base assembly, and a groove of the same shape is provided on the opening. A screw hole is provided at each of the four corners, and a rectangular maze cover is provided in the groove. A circular opening is provided in the center of the maze cover, and a round boss is provided below the opening to correspond to the upper opening and cooperate with the maze retaining ring of the grinder assembly. A screw hole is provided at each of the four corners of the cover to correspond to the screw hole of the bean box seat, and the maze cover is installed and fixed to the bean box seat by the cover fixing screws 5. At the same time, four screw columns are provided at the bottom of the bean box seat, which are fixed with the circular openings of the connecting bracket below. The connecting bracket is semicircular, with a cylindrical pillar in the center, a circular slot in the opening on one side of the center, a rectangular groove in the inner bottom, and two screw holes in the center of the groove that match the screw holes on the front end of the weighing module below. A square groove is also provided at the outer bottom to limit the position of the weighing module below; a weighing module bracket is provided below the weighing module, and the weighing module bracket is in a long strip shape corresponding to the weighing module, and a cylindrical boss is provided horizontally on the left and right sides of the rear end and a hole is opened in the middle. Two ribs are provided at the rear end of the weighing module bracket to match the rear end of the weighing module, and two circular openings are provided in the middle of the two ribs to match the screw holes at the rear end of the weighing module for fixing, and a rectangular boss is provided at the front end of the weighing module bracket to match the square opening at the full end of the fixed base below. The front end of the module bracket is provided with a runway circular opening, and the bottom of the opening is provided with a cylindrical boss to match the cylinder at the front end of the fixed base below; a boss is provided in the middle of the rear end of the fixed base, and a cylindrical boss is provided horizontally on the boss. The cylindrical boss serves as a hinged ear, and an opening is provided in the middle to match the two horizontal cylindrical bosses at the rear end of the weighing module bracket for the fixing pin to penetrate and match. The front end of the fixing pin is fixed with a retaining spring. A runway circular opening is provided between the fixed bases to correspond to the two screw holes on the upper weighing module bracket. The four corners of the fixed base are provided with cylindrical bosses and screw holes, that is, the end corners of the weighing assembly are respectively provided with mounting screws 13, and a hook-shaped bracket is provided at the front end. A cylinder is provided on the bracket to match the buffer spring and the cylindrical boss at the bottom of the front end of the upper weighing module bracket. A rectangular opening is provided on the bracket to match the boss at the front end of the weighing module bracket to limit. The above-mentioned weighing module is L-shaped, and the weighing module is a single-point cantilever weighing sensor. A weighing support is provided 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 fixing pin drives the weighing module of the weighing assembly at the connection and the bean box assembly to move downward, and the buffer spring is squeezed during the downward movement. After being squeezed, the buffer spring rebounds upward, and combined with the adjustment hole at the front end of the fixed base, the end protrusion of the front end of the weighing module bracket is limited to limit the activity space, thereby protecting the weighing module.

Claims

1. A bean box for a coffee machine with anti-flying powder and weighing, the bean box comprising a bean box assembly (1) and a grinding assembly (4), wherein a bean box base assembly (2) is provided at the bottom of the bean box assembly, a weighing assembly is provided at one side of the bottom of the bean box base assembly, a sharpening assembly is provided in the grinding assembly, a raised lower bean opening at the bottom of the bean box base assembly is fitted with a raised blade edge at the top of the sharpening assembly of the grinding assembly, a motor shaft at a grinding motor of the sharpening assembly is connected to a grinding blade assembly in a grinding chamber, the bean box base assembly and the sharpening assembly are fixedly arranged on a machine body, a notch at a top plate groove of a bean box seat (7) 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 sharpening assembly is provided on one side of the sharpening assembly; the bean box assembly is placed on the top of the bean box seat of the bean box seat assembly at the top of the grinding assembly In the disc groove, a cylindrical positioning column protrudes from the center of the bottom of the gear leaf bean-pushing disc (110) and extends out of the through hole at the bottom of the bean box (105), and is fixed to the center hole of the boss of the bean box fixing disc (111) through a C-shaped clamp (112). A bean lowering opening is provided on one side of the disc surface of the bean box fixing disc. The boss of the bean box fixing disc is inserted into the groove at the bottom of the gear leaf bean-pushing disc. At the same time, the bean box fixing disc is buckled and fixed to the raised sleeve at the bottom of the bean box. The bean box, the gear leaf bean-pushing disc and the bean box fixing disc are fixedly matched as a whole. The transmission gear (19) of the bean box seat assembly passes through the bean box seat and is inserted into the gear hole of the gear leaf bean-pushing disc exposed at the bottom of the bean box assembly in the disc groove at the top of the bean box seat, and the transmission gear is connected to the motor shaft of the synchronous motor (18) at the bottom of the bean box seat assembly; it is characterized in that The weighing assembly is arranged on one side of the bottom of the bean box seat (7) through a connecting bracket (8) and / or a bracket fixing plate (17); two ends of the weighing module (9) of the weighing assembly are respectively arranged on the top of the weighing module bracket (12) through weighing fixing screws (16); one side of the weighing module bracket is hingedly fixed to a hinged ear (1501) protruding on one side of the fixed base (15) through a fixing pin (11) and a retaining spring (10); the end protrusion on the other side of the weighing module bracket is inserted into an adjustment hole (1502) on the other side of the fixed base; a buffer spring (14) is arranged between the fixed base on this side and the weighing module bracket; the end of the weighing module bracket on this side swings in the adjustment hole of the fixed base at an angle of 2-5 degrees.

2. The anti-flying powder weighing coffee machine bean box according to claim 1, characterized in that A labyrinth cover (6) is provided at the lower bean opening of the bean box base assembly (2), the opening of the labyrinth cover protrudes downward and turns outward, a labyrinth cover ring (3) is provided at the protruding edge of the top of the grinding assembly of the grinding assembly (4), the opening of the labyrinth cover ring is narrowed obliquely inward, the opening of the labyrinth cover is inserted into the opening of the labyrinth cover ring at a parallel oblique angle, and a circular cover (401) protruding upward through a rib is provided in the middle of the protruding edge of the top of the grinding assembly below the opening of the labyrinth cover.

3. The anti-flying powder weighing coffee machine bean box according to claim 1, characterized in that The bean box (105) is provided with an anti-bean splashing grille (103), and column feet symmetrically arranged in pairs at the bottom of the anti-bean splashing grille are fixed to the bean box fixing plate (111) through the bean box. The anti-bean splashing grille is located at the inner diameter of the top cover above the bean box, and the bean box self-locking knob (101) extends out of the knob hole in the middle of the anti-bean splashing grille.

4. The anti-flying powder weighing coffee machine bean box according to claim 1, characterized in that The bean box assembly (1) has arched slopes symmetrically arranged on both sides of the inclined surface between the through hole and the inner wall of the gear leaf bean-pushing disk (110) at the bean box (105) inside. A conical top cover is arranged above the through hole at the gear leaf bean-pushing disk, and the cover opening below the top cover is aligned with the edge of the ring surface of the gear leaf bean-pushing disk and abuts against it. There are gaps between the leaves on both sides of the outer diameter of the ring surface of the gear leaf bean-pushing disk and the lower part of the arched part in the upper bean box. A bean-blocking silicone sheet (104) is arranged on one side below the gap on one side of the bean box above the lower bean opening of the bean box fixing plate (111).

5. The anti-flying powder weighing coffee machine bean box according to claim 4, characterized in that A bean box self-locking disk (109) is provided on the top of the gear leaf bean-pushing disk (111) in the through hole of the bean box (105); the bean-pushing piece of the gear leaf bean-pushing disk exposes the outer diameter of the bean box self-locking disk; a knob column protruding from 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 a 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; a first self-locking rib (1091) and a second self-locking rib (1092) are symmetrically provided on both sides of the top annular end surface of the bean box self-locking disk; a bean box locking rod (106) and a bean box top rod (108) 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. The bean box locking rod has a notch at one end wedged and fixed to the first self-locking rib of the bean box self-locking disk. At the same time, the column head at the end of the bean box locking rod is inserted into the first arc-shaped self-locking groove on the side through a shaft sleeve (107) and the tooth opening on one side of the top gear (1101) of the lower gear leaf bean-pushing disk (110). The other end of the bean box locking rod is inserted into the locking hole on one side of the bean box seat (7). The notch at one end of the bean box top rod is wedged and fixed to the second self-locking rib of the bean box self-locking disk. At the same time, the column head at the end of the bean box top rod is inserted into the second arc-shaped self-locking groove on the side through another shaft sleeve and the tooth opening on the other side of the top gear of the lower gear leaf bean-pushing disk. 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 locking rod is in a Z shape, and the bean box top rod is in a straight shape.

6. The anti-flying powder weighing coffee machine bean box according to claim 5, characterized in that The first self-locking rib (1091) and the second self-locking rib (1092) of the bean box self-locking plate (109) are respectively shaped as special-shaped tracks with one end closer to the center than the other end away from the center and protruding in the middle. The travel of the corresponding bean box locking rod (106) and bean box top rod (108) is controlled by the special-shaped tracks. The bean box locking rod and the bean box top rod are respectively located below the slope of the bean box (105).

7. The anti-flying powder weighing coffee machine bean box according to claim 5, characterized in that A raised support platform (1111) is provided on one side of the bean box fixing plate (111) below the bean box locking rod (106) and / or the bean box top rod (108), and the bottom of the bean box locking rod and / or the bean box top rod is limited to the guide rod groove at the top of the support platform.

8. The anti-flying powder weighing coffee machine bean box according to claim 1, characterized in that The gear leaf bean-popping plate (110) comprises a gear leaf fixing plate and a silicone gear leaf, wherein the outer diameter of the outer frame of the silicone gear leaf is provided with bean-popping pieces distributed at equal intervals, the middle of the gear leaf fixing plate is upwardly convex in an arc shape, and the bottom of the outer diameter edge of the gear leaf fixing plate is provided with open grooves distributed at equal intervals, the open grooves of the gear leaf fixing plate 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 from the bottom of the gear leaf fixing plate into the inner wall of the plate opening of the gear leaf fixing plate, and the bean-popping pieces of the silicone gear plate are respectively embedded and fixed in the open grooves of the gear leaf fixing plate.

9. The anti-flying powder weighing coffee machine bean box according to claim 8, characterized in that A straight chamfer is provided at the outer end corner of the top of the bean-pushing piece of the silicone gear leaf, and the bottom of the straight chamfer of the bean-pushing piece is flush with the opening of the through hole in the bean box (105).

10. The anti-flying powder weighing coffee machine bean box according to claim 1, characterized in that The bean box seat (7) of the bean box base assembly (2) is symmetrically provided with self-locking tongue assemblies (21) on both sides of the inner wall of the bottom, and the outer diameter of the bean box tray is symmetrically provided with a top rod micro switch assembly (22) on at least one side; when the bean box assembly (1) is placed in the top tray groove of the bean box seat of the bean box base assembly, the bone position on one side of the bottom of the bean box assembly triggers the micro switch of the top rod micro switch assembly, and at the same time, the ribs in the buckle grooves on both sides of the bottom of the bean box assembly are limitedly buckled and fixed to the self-locking tongues of the self-locking tongue assembly.

11. The anti-flying powder weighing coffee machine bean box according to claim 10, characterized in that At least one side of the inner wall of the bottom of the bean box seat (7) is provided with a push rod micro switch assembly (22); when the bean box assembly (1) is placed in the top plate groove of the bean box seat of the bean box base assembly (2), a bone point on one side of the bottom of the bean box (105) of the bean box assembly triggers a push rod micro switch of the push rod micro switch assembly; another push rod micro switch assembly is provided on the side where the lower bean opening at the bottom protrusion of the bean box seat of the bean box base assembly fits with the top protrusion of the grinding assembly of the grinding assembly (4) at the bottom of the bean box seat or on the outer diameter side of the grinding assembly.

12. The anti-flying powder weighing coffee machine bean box according to claim 11, characterized in that The push rod micro switch assembly (22) comprises a push rod micro switch, a push rod pan head screw, a switch push rod, a push rod bracket, a bracket screw and a push rod spring. A side baffle (23) is provided at the bean box seat (7) outside the push rod micro switch assembly. The push rod micro switch of the push rod micro switch assembly is fixed in a switch slot on one side of the outer diameter of the bean box seat by the push rod pan head screw. The moving spring on one side of the push rod micro switch extends out of the switch slot and is aligned with the contact at one end of the switch push rod. The convex portion on the other side of the contact is inserted into the top plate of the bean box seat. The inner wall of the groove is raised and the top is open. 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 (1) is placed in the top plate groove of the bean box seat of the bean box base assembly (2), the convex point at the bone position on one side of the bottom of the bean box (105) 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 moving reed of the push rod micro switch, thereby triggering the push rod micro switch of the push rod micro switch assembly.

13. The anti-flying powder weighing coffee machine bean box according to claim 1, characterized in that The powder outlet channel of the grinding component (4) is provided with a powder distribution blade (26), the bottom channel opening of the powder outlet channel is provided with a powder outlet screen (27), the end surface of the powder outlet screen is provided with mesh holes, the powder outlet screen is fixed to the bottom channel opening of the powder outlet channel by means of threads, and the motor shaft of the powder distribution motor (25) extends into the powder outlet channel and is connected to the powder distribution blade; the top channel opening of the powder outlet channel on one side of the grinding component is exposed from the machine body.

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