A coffee machine bean dispensing assembly, a coffee machine and a method of using the same

Abstract

The present invention belongs to the technical field of beverage making equipment, and in particular to a coffee machine bean lowering component, a coffee machine and a method of using the same. In view of the problem that it is impossible to add an appropriate amount of coffee beans according to the user's taste, and hot water is directly mixed with coffee powder for brewing, the following scheme is proposed, which includes a shell body, a placement cylinder is fixedly penetrated through the top of the shell body, the placement cylinder is used to hold coffee beans, the top of the shell body is hinged with a cover plate for closing the placement cylinder through a hinge shaft, and a discharge port for discharging coffee beans is provided on one side of the bottom of the placement cylinder. In the present invention, the extension ring is driven up and down by a screw, so that the grinding amount of coffee beans can be adjusted according to the user's taste requirements, and when the measuring barrel and the extension ring measure the coffee beans, the measuring barrel can be driven to shake, so that the coffee beans in the measuring barrel can be enriched, thereby ensuring the accuracy of measuring the coffee beans. In addition, when brewing coffee, the coffee powder on the arc screen can be fully brewed by hot water.

Description

Technical Field

[0001] The present invention relates to the technical field of beverage making equipment, and in particular to a coffee machine bean feeding component, a coffee machine and a use method thereof. Background Art

[0002] With the improvement of living standards, coffee has gradually become a common drink in people's lives. Coffee brewed with freshly ground coffee powder has a stronger aroma and better taste than coffee brewed with commercially available coffee powder. Therefore, more and more people like to use coffee machines to grind coffee themselves and adjust the taste of coffee according to their preferences. Now, more and more families are using coffee machines.

[0003] However, the existing coffee machines still have some shortcomings during use:

[0004] 1. When using a coffee machine to make coffee, because different users have different tastes of coffee, the coffee bean feeding device in the coffee machine cannot add the right amount of coffee beans according to the user's taste, resulting in the coffee being either strong or weak;

[0005] 2. When making coffee, coffee powder needs to be brewed with hot water at 85°C-90°C, but in existing coffee machines, hot water and coffee powder are directly mixed for brewing, which affects the taste of the later coffee.

[0006] In view of the above problems, the present invention document proposes a coffee machine bean loading assembly, a coffee machine and a method of using the same. Summary of the invention

[0007] The purpose of the present invention is to solve the disadvantage that the existing method cannot add an appropriate amount of coffee beans according to the user's taste, and directly mix hot water with coffee powder for brewing, and proposes a coffee machine bean feeding component, a coffee machine and a use method thereof.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A coffee bean dispensing assembly and a coffee machine, comprising a housing, a placing cylinder is fixedly passed through the top of the housing, the placing cylinder is used to hold coffee beans, a cover plate for closing the placing cylinder is hinged on the top of the housing through a hinge shaft, and a discharge port for discharging coffee beans is provided on one side of the bottom of the placing cylinder;

[0010] A grinding cylinder is fixed to the bottom of the placing cylinder, a gathering cylinder is fixed to the inner wall of the bottom of the grinding cylinder, and the gathering cylinder is wide at the top and narrow at the bottom, and is used to gather coffee beans for later grinding. A lifting plate located above the gathering cylinder is slidably connected in the grinding cylinder, and a plurality of measuring cylinders are arranged above the lifting plate, and the measuring cylinders cooperate with the discharge port to measure an appropriate amount of coffee beans. A crushing roller is rotatably connected to the inner wall of the bottom of the grinding cylinder, and a plurality of grinding bean blades are fixed to the outer wall of the crushing roller, and the grinding bean blades are used to grind coffee beans. A discharge hole cooperating with the measuring cylinder is arranged in the lifting plate, and is used to discharge the measured coffee beans into the gathering cylinder.

[0011] A horizontal plate is fixed in the shell, and one end of the horizontal plate passes through the grinding cylinder. A driving motor is fixed on the top of the horizontal plate. A stirring rod is fixed to the output shaft of the driving motor through a coupling. The top of the stirring rod rotates and extends into the placement cylinder. A plurality of stirring blades located in the placement cylinder are fixed on the outer wall of the stirring rod. The stirring blades are used to stir the coffee beans, so that the coffee beans can be discharged through the discharge port.

[0012] A heating box is fixed to the bottom inner wall of the shell, a brewing cylinder is fixed to the top of the heating box, and the top of the brewing cylinder is fixedly connected to the bottom of the grinding cylinder, an annular tube is fixed in the brewing cylinder, and a plurality of nozzles are fixed at the bottom of the annular tube for spraying hot water into the brewing cylinder to complete coffee brewing;

[0013] The measuring structure is arranged at the bottom of the placing cylinder and is used to measure the appropriate amount of coffee beans;

[0014] A brewing structure, disposed in the grinding cylinder, for grinding and brewing the measured coffee beans;

[0015] The liquid taking structure is arranged on one side of the shell and is used for taking out the brewed coffee.

[0016] In a possible design, the measuring structure includes a circular guide rail fixed to the bottom of the placement cylinder, the bottom of the placement cylinder is rotatably connected to a rotating disk via the circular guide rail, a plurality of movable grooves are arranged in the rotating disk, and a plurality of movable grooves are slidably connected to measuring barrels via slide rails and slide grooves, a first spring is fixed to the inner walls on the side away from each other of the plurality of movable grooves, and one end of the first spring is fixedly connected to the corresponding measuring barrel, so as to enable the measuring barrel to reciprocate and fill the coffee beans therein, the outer wall of the stirring rod is fixedly sleeved with a fixed disk, the outer wall of the stirring rod is slidably connected to a gear via slide grooves and slide grooves, the outer wall of the stirring rod is sleeved with a second spring fixedly connected to the bottom of the gear, and the bottom end of the second spring is fixedly connected to the top of the fixed disk, a magnet ring is fixed to the top of the gear, and the bottom of the rotating disk is fixed The invention relates to a device for producing coffee beans by mixing with the inner gear ring and the inner gear ring, wherein the stirring rod drives the rotating disk to rotate when the gear is meshed with the inner gear ring, and the stirring rod can stir the coffee beans in the placement cylinder through the stirring blades when the gear is disengaged from the inner gear ring; the stirring rod drives the inner gear ring and the rotating disk to rotate until the top of the measuring cylinder cooperates with the discharge port of the placement cylinder, and the coffee beans in the placement cylinder fall into the measuring cylinder and the extension ring, and when the measuring cylinder measures the coffee beans, the annular electromagnet is energized, and a repulsive force is generated between the annular electromagnet and the magnet ring, and the repulsive force is greater than the elastic force of the second spring, the gear is disengaged from the inner gear ring, and the driving motor continues to drive the stirring rod to rotate, and the stirring rod drives the stirring blades to rotate to stir the coffee beans in the placement cylinder, so that the coffee beans fall into the measuring cylinder through the discharge port.

[0017] In a possible design, the measuring structure also includes an L-shaped plate fixed to one side of the top of the lifting plate, one side of the grinding cylinder is provided with a giveway groove, and one end of the L-shaped plate passes through the giveway groove and is slidably connected to the giveway groove, one side of the grinding cylinder is rotatably connected to a screw rod through a base plate, and the screw rod is threadedly connected to the L-shaped plate, the top end of the screw rod is rotatably extended to the top of the shell body, and a return rod located above the shell body is rotatably passed through the screw rod, and a groove is provided on the top of the cover plate for engaging with the return rod, and the cooperation of the return rod and the groove is used to brake the cover plate, and the bottom of the multiple measuring barrels are slidably connected to an extension ring, and the bottom end of the extension ring is in conflict with the top of the lifting plate; the screw rod is driven to rotate by the return rod, and the screw drives the lifting plate to rise and fall, thereby controlling the distance that the extension ring extends in the measuring barrel, thereby controlling the amount of coffee beans contained in the measuring barrel and the extension ring to meet the needs of users with different tastes.

[0018] In a possible design, the brewing structure includes a double-shaft motor fixed in the grinding cylinder, one of the output shafts of the double-shaft motor is fixedly connected to the bottom end of the crushing roller through a coupling, the bottom of the grinding cylinder is fixedly connected to a reduction box, the other output shaft of the double-shaft motor is fixedly connected to the input shaft of the reduction box through a coupling, the output shaft of the reduction box is fixed with a bending rod, and the bending rod is located in the brewing cylinder, the bottom inner wall of the brewing cylinder is provided with a universal ball through a convex rolling, a plurality of discharge pipes are fixedly passed through the bottom of the grinding cylinder, and the bottom ends of the plurality of discharge pipes extend into the brewing cylinder, and the tops of the discharge pipes are A circular filter is fixed at the end to prevent coffee beans from falling into the discharge pipe and clogging the discharge pipe. A first solenoid valve is arranged in the discharge pipe. The discharge pipe is used to discharge coffee powder downward. A rotating rod is fixed to the outer wall of the universal ball. An arc screen is fixed to the outer wall of the rotating rod. The arc screen is used to hold coffee powder. A circular ring is sleeved on the outer wall of the rotating rod. The bottom end of the bending rod is fixedly connected to the outer wall of the circular ring. A plurality of heating plates are fixed to the inner wall of the heating box. The heating plates are used to heat the water in the heating box. A temperature sensor is arranged on the inner wall of one side of the heating box to detect the water temperature in real time. A A first water pump, wherein the liquid inlet end of the first water pump is connected to the heating box through a pipeline, a second connecting pipe is fixed to the liquid outlet end of the first water pump, and one end of the second connecting pipe extends into the brewing cylinder and is connected to the annular pipe; a double-axis motor drives the grinding roller to rotate, and the grinding roller grinds the coffee beans through the bean grinding blade. After the coffee beans are ground, the first solenoid valve on the discharge pipe is opened, and the coffee powder falls onto the arc screen through the discharge pipe. The third solenoid valve on the first connecting pipe is opened, and the water in the water storage tank is injected into the heating box through the first connecting pipe, and the water in the heating box is heated by the heating plate, and the temperature sensor in the heating box monitors the temperature in real time. The water temperature is measured and displayed on a display screen on one side of the shell (the display screen is electrically connected to the temperature sensor). When the water temperature reaches 85°C-90°C, the heating plate is turned off, and the first water pump pumps hot water into the annular tube through the second connecting tube, and sprays the hot water onto the coffee powder on the arc-shaped screen through the nozzle in the annular tube. The dual-axis motor drives the bending rod to rotate slowly under the action of the reduction gear box, and the bending rod drives the rotating rod and the arc-shaped screen to rotate through the reduction gear box, so that the water sprayed from the nozzle can evenly brew the coffee powder. In the brewing process, the arc-shaped screen and the rotating rod rotate slowly, and can also be used to stir the coffee to fully mix the coffee powder.

[0019] In a possible design, the liquid taking structure includes a horizontal block fixed to one side of the shell, a water outlet is provided at the bottom of the horizontal block, a second water pump is fixed to the inner wall of one side of the shell, a fifth connecting pipe is fixed to the liquid outlet end of the second water pump, and one end of the fifth connecting pipe passes through the horizontal block and is connected to the water outlet, a pad frame is detachably provided on one side of the shell, a third connecting pipe is provided at the bottom of one side of the brewing cylinder, and the bottom end of the third connecting pipe is connected to the pad frame, a fourth connecting pipe is fixed to the liquid inlet end of the second water pump, and the fourth connecting pipe is connected to the third connecting pipe, a second solenoid valve is provided on the outer wall of the third connecting pipe, and the second solenoid valve is located at The fourth connecting tube and the right side of the connecting end of the third connecting tube; the coffee cup is placed on the pad frame, and the second water pump injects the coffee in the brewing cylinder into the water outlet through the cooperation of the fourth connecting tube, the third connecting tube and the fifth connecting tube, and the coffee is injected into the coffee cup through the water outlet, and the pad frame can not only place the coffee cup but also collect the spilled coffee. In addition, when it is necessary to rinse the brewing cylinder and the arc screen, the brewing cylinder and the arc screen are rinsed through the nozzle at the bottom of the annular tube, and after rinsing, the second solenoid valve on the third connecting tube is opened, and the water in the brewing cylinder flows into the pad frame. The pad frame and the shell can be disassembled later to facilitate dumping of the waste liquid in the pad frame.

[0020] In a possible design, a detachable water tank is provided on the side of the shell away from the horizontal block, a first connecting pipe is provided at the bottom of the water tank, one end of the first connecting pipe passes through the shell and is connected to the heating box, and a third solenoid valve is provided on the outer wall of the first connecting pipe; opening the third solenoid valve can inject water in the water tank into the heating box to heat the water to complete the coffee brewing.

[0021] In a possible design, a slide rod is slidably connected to the top of the cross plate through a base, and a ball is fixed to one end of the slide rod close to the stirring rod, the outer wall of the fixed plate is provided with a plurality of grooves, and the grooves cooperate with the ball, and a magnet block is fixed to the other end of the slide rod, an iron sheet layer is fixed to one side of the measuring cylinder, and the measuring cylinder is magnetically connected to the magnet block through the iron sheet layer, and the outer wall of the slide rod is sleeved with a tension spring fixedly connected to the base, and the end of the tension spring away from the base is fixedly connected to the outer wall of the slide rod; the stirring rod drives the slide rod to reciprocate in a straight line through the cooperation of the fixed plate, the groove and the ball, and the slide rod pushes the measuring cylinder to move in the moving groove through the magnet block, and after the slide rod loses the thrust of the fixed plate, the slide rod pushes the measuring cylinder to reset through the action of the magnet block, the tension spring and the first spring, so that the measuring cylinder can rock back and forth, so that the coffee beans in the measuring cylinder can be filled, thereby ensuring the accuracy of measuring the coffee beans.

[0022] In a possible design, a plurality of blades are fixed to the outer wall of the rotating rod, and a plurality of through holes are provided in the blades; the blades can stir the coffee during the shaking process of the rotating rod, and the plurality of through holes provided in the blades can fully allow the coffee to flow in the brewing cylinder, further increasing the stirring effect of the coffee.

[0023] A coffee machine comprises the above-mentioned coffee machine bean feeding assembly.

[0024] In the present application, a method for using a coffee machine bean dispensing assembly comprises the following steps:

[0025] S1. Operate the return lever to unlock the cover, open the cover and add coffee beans; adjust the height of the lifting plate through the screw to control the amount of coffee beans in the measuring barrel to meet different taste requirements;

[0026] S2, start the drive motor, and transport the coffee beans from the placement cylinder to the measuring cylinder through the cooperation of the stirring rod, the gear and the inner gear ring; the annular electromagnet controls the meshing and separation of the gear and the inner gear ring to achieve the stirring and measuring of the coffee beans;

[0027] S3. When the coffee beans are measured, the annular electromagnet is powered off, the gear re-engages with the inner gear ring, drives the measuring barrel to rotate to the discharge hole position, and releases the coffee beans into the collecting barrel; the dual-axis motor starts, and the coffee beans are ground by the crushing roller and the grinding blade;

[0028] S4. After grinding, hot water is evenly sprayed onto the coffee powder on the arc screen through the nozzle of the annular tube, and at the same time, the bending rod and the arc screen rotate slowly to achieve uniform brewing and stirring of the coffee powder;

[0029] S5. After brewing is completed, pour the coffee into the coffee cup through the water outlet; the pad frame not only supports the coffee cup, but also collects the spilled coffee; when cleaning is required, rinse it through the nozzle at the bottom of the annular tube, and the waste liquid flows into the pad frame, which is convenient for subsequent cleaning.

[0030] Beneficial effects:

[0031] In the present invention, an L-shaped plate is fixed to one side of the top of the lifting plate, a screw is rotatably connected to one side of the grinding cylinder through a base plate, and the screw is threadedly connected to the L-shaped plate, the top of the screw is rotated and extended to the top of the shell, and the bottoms of the plurality of measuring barrels are slidably connected to extension rings, and the bottom ends of the extension rings are in conflict with the top of the lifting plate; the screw is driven to rotate by the return rod, and the screw drives the lifting plate to rise and fall, thereby controlling the extension distance of the extension ring in the measuring barrel, thereby controlling the amount of coffee beans contained in the measuring barrel and the extension ring, so as to meet the needs of users with different tastes;

[0032] In the present invention, a sphere is fixed to one end of the slide bar, a plurality of grooves are provided on the outer wall of the fixed disk, a magnet block is fixed to the other end of the slide bar, an iron sheet layer is fixed to one side of the measuring barrel, and the measuring barrel is magnetically connected to the magnet block through the iron sheet layer; the stirring rod drives the slide bar to move back and forth linearly through the cooperation of the fixed disk, the groove and the sphere, and the slide bar pushes the measuring barrel to move in the moving groove through the magnet block, so that the measuring barrel can be shaken back and forth, so that the coffee beans in the measuring barrel can be filled, thereby ensuring the accuracy of measuring the coffee beans;

[0033] In the present invention, a bending rod is fixed to the output shaft of the reduction gearbox, a universal ball is provided on the bottom inner wall of the brewing cylinder, an arc-shaped screen is fixed to the outer wall of the rotating rod, a circular ring is sleeved on the outer wall of the rotating rod, and the bottom end of the bending rod is fixedly connected to the outer wall of the circular ring; the dual-axis motor drives the bending rod to rotate slowly through the reduction gearbox, and the bending rod drives the rotating rod and the arc-shaped screen to rotate through the reduction gearbox, so that the water sprayed from the nozzle can evenly brew the coffee powder, and the arc-shaped screen and the rotating rod rotate slowly during the brewing process, and can also be used to stir the coffee to fully mix the coffee powder.

[0034] In the present invention, the extension ring is driven to rise and fall by the screw, so the grinding amount of coffee beans can be adjusted according to the user's taste requirements. When the measuring barrel and the extension ring measure the coffee beans, the measuring barrel can be driven to shake, so that the coffee beans in the measuring barrel can be enriched, thereby ensuring the accuracy of measuring the coffee beans. In addition, when brewing coffee, the coffee powder on the arc screen can be fully brewed by hot water, and the coffee can be slowly stirred during brewing. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of the three-dimensional structure of a coffee machine bean loading assembly provided in Example 1 of the present invention;

[0036] Figure 2 A schematic diagram of a three-dimensional cross-sectional structure of a coffee machine bean lowering assembly provided in Example 1 of the present invention;

[0037] Figure 3 A schematic diagram of a three-dimensional cross-sectional structure of a placement cylinder, a cover plate and a grinding cylinder of a coffee machine bean lowering assembly provided in Example 1 of the present invention;

[0038] Figure 4 A schematic diagram of a three-dimensional exploded structure of a rotating disk, a circular guide rail and a measuring cylinder of a coffee machine bean lowering assembly provided in Example 1 of the present invention;

[0039] Figure 5 A schematic diagram of a three-dimensional cross-sectional structure of a rotating disk of a coffee machine bean lowering assembly provided in Example 1 of the present invention;

[0040] Figure 6A schematic diagram of a three-dimensional exploded structure of a groove, a gear, an inner gear ring and a slide rod of a coffee machine bean lowering assembly provided in Example 1 of the present invention;

[0041] Figure 7 A schematic diagram of a partial three-dimensional cross-sectional structure of a measuring cylinder and a lifting plate of a coffee machine bean lowering assembly provided in Example 1 of the present invention;

[0042] Figure 8 A schematic diagram of a three-dimensional cross-sectional structure of a grinding cylinder and a brewing cylinder of a coffee machine bean lowering assembly provided in Example 1 of the present invention;

[0043] Fig. 9 A schematic diagram of a three-dimensional exploded structure of a crushing roller, a dual-shaft motor and a reduction gearbox of a coffee machine bean lowering assembly provided in Example 1 of the present invention;

[0044] Fig.10 A schematic diagram of a three-dimensional exploded cross-sectional structure of a cover plate, a lifting plate and a screw rod of a coffee machine bean lowering assembly provided in Example 1 of the present invention;

[0045] Fig.11 A schematic diagram of a partial three-dimensional exploded cross-sectional structure of a water storage tank, a heating tank, a brewing cylinder and an annular tube of a coffee machine bean lowering assembly provided in Example 1 of the present invention;

[0046] Fig.12 A schematic diagram of a three-dimensional cross-sectional structure of a horizontal block and a pad frame of a coffee machine bean lowering assembly provided in Example 1 of the present invention;

[0047] Fig.13 This is a schematic diagram of the front cross-sectional structure of a brewing cylinder of a coffee machine bean lowering assembly provided in Example 2 of the present invention.

[0048] In the figure: 1, shell; 2, placement cylinder; 3, cover plate; 4, grinding cylinder; 5, horizontal plate; 6, stirring rod; 7, stirring blade; 8, rotating disk; 9, circular guide rail; 10, moving groove; 11, measuring cylinder; 12, first spring; 13, lifting plate; 14, feeding hole; 15, extension ring; 16, L-shaped plate; 17, screw; 18, return rod; 19, slot; 20, driving motor; 21, fixed disk; 22, second spring; 23, gear; 24, magnet ring; 25, inner gear ring; 26, ring electromagnet; 27, groove; 28, slide rod; 29, magnet block; 30, ball; 31, tension spring; 32. Aggregating barrel; 33. Crushing roller; 34. Grinding bean blade; 35. Double-axis motor; 36. Brewing barrel; 37. Universal ball; 38. Rotating rod; 39. Curved screen; 40. Circular ring; 41. Speed ​​reducer; 42. Bending rod; 43. Water storage tank; 44. Heating box; 45. Heating plate; 46. First connecting pipe; 47. First water pump; 48. Second connecting pipe; 49. Ring pipe; 50. Third connecting pipe; 51. Second water pump; 52. Fourth connecting pipe; 53. Fifth connecting pipe; 54. Horizontal block; 55. Water outlet; 56. Pad frame; 57. Discharge pipe; 58. Blades; 59. Through hole. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0050] Example 1

[0051] Reference Figure 1-Figure 2 A coffee bean placing assembly is used in the field of beverage making equipment, comprising a housing 1, a placing cylinder 2 is fixedly passed through the top of the housing 1, the placing cylinder 2 is used to hold coffee beans, a cover plate 3 for closing the placing cylinder 2 is hinged on the top of the housing 1 through a hinge shaft, and a discharge port for discharging coffee beans is provided on one side of the bottom of the placing cylinder 2;

[0052] The grinding cylinder 4 is fixed at the bottom of the placing cylinder 2. A gathering cylinder 32 is fixed on the inner wall of the bottom of the grinding cylinder 4. The gathering cylinder 32 is wide at the top and narrow at the bottom, and is used to gather coffee beans for later grinding. A lifting plate 13 located above the gathering cylinder 32 is slidably connected in the grinding cylinder 4. A plurality of measuring cylinders 11 are arranged above the lifting plate 13, and the measuring cylinders 11 cooperate with the discharge port to measure an appropriate amount of coffee beans. A crushing roller 33 is rotatably connected to the inner wall of the bottom of the grinding cylinder 4. A plurality of grinding bean blades 34 are fixed on the outer wall of the crushing roller 33. The grinding bean blades 34 are used for grinding coffee beans. A discharge hole 14 cooperating with the measuring cylinder 11 is arranged in the lifting plate 13 to discharge the measured coffee beans into the gathering cylinder 32.

[0053] A horizontal plate 5 is fixed in the housing 1, and one end of the horizontal plate 5 passes through the grinding cylinder 4. A driving motor 20 is fixed on the top of the horizontal plate 5. A stirring rod 6 is fixed to the output shaft of the driving motor 20 through a coupling. The top of the stirring rod 6 rotates and extends into the placement cylinder 2. A plurality of stirring blades 7 located in the placement cylinder 2 are fixed to the outer wall of the stirring rod 6. The stirring blades 7 are used to stir the coffee beans, so that the coffee beans can be discharged through the discharge port.

[0054] The heating box 44 is fixed to the bottom inner wall of the shell 1, and a brewing cylinder 36 is fixed to the top of the heating box 44, and the top of the brewing cylinder 36 is fixedly connected to the bottom of the grinding cylinder 4, and an annular tube 49 is fixed in the brewing cylinder 36, and a plurality of nozzles are fixed at the bottom of the annular tube 49 for spraying hot water into the brewing cylinder 36 to complete coffee brewing.

[0055] Reference Figure 1 , Figure 2 and Fig.11 A detachable water tank 43 is provided on one side of the shell 1 away from the horizontal block 54, a first connecting pipe 46 is provided at the bottom of the water tank 43, one end of the first connecting pipe 46 passes through the shell 1 and is connected to the heating box 44, and a third solenoid valve is provided on the outer wall of the first connecting pipe 46; opening the third solenoid valve can inject water in the water tank 43 into the heating box 44 to heat the water and complete the coffee brewing.

[0056] Reference Figure 3-Figure 8The bean lowering assembly also includes a measuring structure arranged at the bottom of the placing cylinder 2 for measuring an appropriate amount of coffee beans; the measuring structure includes a circular guide rail 9 fixed to the bottom of the placing cylinder 2, the bottom of the placing cylinder 2 is rotatably connected to a rotating disk 8 through the circular guide rail 9, a plurality of movable grooves 10 are arranged in the rotating disk 8, and a plurality of movable grooves 10 are slidably connected to a measuring cylinder 11 through a slide rail and a slide groove, and a first spring 12 is fixed to the inner wall of the plurality of movable grooves 10 on the side away from each other, and one end of the first spring 12 is fixedly connected to the corresponding measuring cylinder 11, so as to make the measuring cylinder 11 reciprocate and enrich the coffee beans therein, the outer wall of the stirring rod 6 is fixedly sleeved with a fixed disk 21, the outer wall of the stirring rod 6 is slidably connected to a gear 23 through a slide groove and a slide groove, the outer wall of the stirring rod 6 is sleeved with a second spring 22 fixedly connected to the bottom of the gear 23, and the bottom end of the second spring 22 is fixedly connected to the top of the fixed disk 21, a magnet ring 24 is fixed to the top of the gear 23, and an inner gear ring 2 is fixed to the bottom of the rotating disk 8 5 and annular electromagnet 26, and annular electromagnet 26 is located in the inner gear ring 25 and cooperates with magnet ring 24, the inner gear ring 25 cooperates with gear 23, when gear 23 is meshed with the inner gear ring 25, stirring rod 6 can drive rotating disk 8 to rotate, when gear 23 is disengaged from the inner gear ring 25, stirring rod 6 can stir coffee beans in placing cylinder 2 through stirring blade 7; stirring rod 6 drives inner gear ring 25 and rotating disk 8 to rotate until the top of measuring cylinder 11 cooperates with the discharge port of placing cylinder 2, and the coffee beans in placing cylinder 2 are placed. The coffee beans in the placing barrel 2 fall into the measuring barrel 11 and the extension ring 15, and when the measuring barrel 11 measures the coffee beans, the annular electromagnet 26 is energized, and a repulsive force is generated between the annular electromagnet 26 and the magnet ring 24, and the repulsive force is greater than the elastic force of the second spring 22, the gear 23 is disengaged from the inner gear ring 25, and the driving motor 20 continues to drive the stirring rod 6 to rotate, and the stirring rod 6 drives the stirring blades 7 to rotate to stir the coffee beans in the placing barrel 2, so that the coffee beans fall into the measuring barrel 11 through the discharge port.

[0057] Reference Figure 3 , Figure 7 , Figure 8 and Fig.10The measuring structure also includes an L-shaped plate 16 fixed to one side of the top of the lifting plate 13, a clearance groove is provided on one side of the grinding cylinder 4, and one end of the L-shaped plate 16 passes through the clearance groove and is slidably connected to the clearance groove, a screw rod 17 is rotatably connected to one side of the grinding cylinder 4 through the base plate, and the screw rod 17 is threadedly connected to the L-shaped plate 16, the top of the screw rod 17 is rotatably extended to the top of the shell 1, and a return rod 18 located above the shell 1 is rotatably penetrated in the screw rod 17, and the top of the cover plate 3 is provided with a locking rod 18. The locking slot 19 is engaged, and the cooperation of the return rod 18 and the locking slot 19 is used to brake the cover plate 3. The bottoms of the multiple measuring barrels 11 are slidably connected with extension rings 15, and the bottom ends of the extension rings 15 are in conflict with the tops of the lifting plates 13. The screw 17 is driven to rotate by the return rod 18, and the screw 17 drives the lifting plates 13 to rise and fall, thereby controlling the extension distance of the extension ring 15 in the measuring barrel 11, thereby controlling the amount of coffee beans contained in the measuring barrel 11 and the extension ring 15 to meet the needs of users with different tastes.

[0058] Reference Figure 5 and Figure 6 The top of the horizontal plate 5 is slidably connected to a slide bar 28 through a base, and a ball 30 is fixed to one end of the slide bar 28 close to the stirring rod 6. A plurality of grooves 27 are provided on the outer wall of the fixed plate 21, and the grooves 27 cooperate with the ball 30. A magnet block 29 is fixed to the other end of the slide bar 28. An iron sheet layer is fixed to one side of the measuring cylinder 11, and the measuring cylinder 11 is magnetically connected to the magnet block 29 through the iron sheet layer. A tension spring 31 fixedly connected to the base is provided on the outer wall of the slide bar 28. The end of the tension spring 31 away from the base is connected to the outer wall of the slide bar 28. The stirring rod 6 drives the slide bar 28 to move back and forth in a straight line through the cooperation of the fixed disk 21, the groove 27 and the ball 30. The slide bar 28 pushes the measuring barrel 11 to move in the movable groove 10 through the magnet block 29. After the slide bar 28 loses the thrust of the fixed disk 21, the slide bar 28 pushes the measuring barrel 11 to reset through the action of the magnet block 29, the tension spring 31 and the first spring 12, so that the measuring barrel 11 can rock back and forth, so that the coffee beans in the measuring barrel 11 can be enriched, thereby ensuring the accuracy of measuring the coffee beans.

[0059] Reference Figure 3 , Figure 7 , Figure 8 , Fig. 9 and Fig.11The lower bean assembly also includes a brewing structure arranged in the grinding cylinder 4, which is used to grind and brew the measured coffee beans; the brewing structure includes a double-axis motor 35 fixed in the grinding cylinder 4, one of the output shafts of the double-axis motor 35 is fixedly connected to the bottom end of the crushing roller 33 through a coupling, a reduction box 41 is fixedly connected to the bottom of the grinding cylinder 4, and the other output shaft of the double-axis motor 35 is fixedly connected to the input shaft of the reduction box 41 through a coupling, and a bending rod 42 is fixed to the output shaft of the reduction box 41, and the bending rod 42 is located in the brewing cylinder 36, and a universal ball 37 is provided on the inner wall of the bottom of the brewing cylinder 36 through a convex rolling, and a plurality of discharge pipes 57 are fixedly penetrated at the bottom of the grinding cylinder 4, and the bottom ends of the plurality of discharge pipes 57 extend to the brewing cylinder 36. In the cylinder 36, a circular filter is fixed to the top of the discharge pipe 57 to prevent coffee beans from falling into the discharge pipe 57 and blocking the discharge pipe 57. A first solenoid valve is provided in the discharge pipe 57. The discharge pipe 57 is used to discharge coffee powder downward. A rotating rod 38 is fixed to the outer wall of the universal ball 37. An arc screen 39 is fixed to the outer wall of the rotating rod 38. The arc screen 39 is used to hold coffee powder. A circular ring 40 is sleeved on the outer wall of the rotating rod 38. The bottom end of the bending rod 42 is fixedly connected to the outer wall of the circular ring 40. A plurality of heating plates 45 are fixed to the inner wall of the heating box 44. The heating plates 45 are used to heat the water in the heating box 44. A temperature sensor is provided on one side of the inner wall of the heating box 44 to detect the water temperature in real time. A first electromagnetic valve is fixed to one side of the heating box 44. A water pump 47 is provided, wherein the liquid inlet end of the first water pump 47 is connected to the heating box 44 through a pipeline, and the liquid outlet end of the first water pump 47 is fixed with a second connecting pipe 48, and one end of the second connecting pipe 48 extends into the brewing cylinder 36 and is connected to the annular pipe 49; the double-axis motor 35 drives the grinding roller 33 to rotate, and the grinding roller 33 grinds the coffee beans through the grinding blade 34. After the coffee beans are ground, the first solenoid valve on the discharge pipe 57 is opened, and the coffee powder falls onto the arc screen 39 through the discharge pipe 57. The third solenoid valve on the first connecting pipe 46 is opened, and the water in the water storage tank 43 is injected into the heating box 44 through the first connecting pipe 46, and the water in the heating box 44 is heated by the heating plate 45, and the temperature sensor in the heating box 44 is The device monitors the water temperature in real time and displays the water temperature on a display screen on one side of the shell 1 (the display screen is electrically connected to the temperature sensor). When the water temperature reaches 85°C-90°C, the heating plate 45 is turned off, and the first water pump 47 pumps hot water into the annular tube 49 through the second connecting pipe 48, and sprays the hot water to the coffee powder on the arc screen 39 through the nozzle in the annular tube 49. The dual-axis motor 35 drives the bending rod 42 to rotate slowly under the action of the reduction box 41, and the bending rod 42 drives the rotating rod 38 and the arc screen 39 to rotate through the reduction box 41, so that the water sprayed from the nozzle can evenly brew the coffee powder. In the brewing process, the arc screen 39 and the rotating rod 38 rotate slowly, and can also be used to stir the coffee to fully mix the coffee powder.

[0060] Reference Figure 2 , Fig.11 and Fig.12 , the bean lowering assembly also includes a liquid taking structure arranged on one side of the shell 1, for taking out the brewed coffee; the liquid taking structure includes a horizontal block 54 fixed to one side of the shell 1, a water outlet 55 is provided at the bottom of the horizontal block 54, a second water pump 51 is fixed to the inner wall of one side of the shell 1, a fifth connecting pipe 53 is fixed to the liquid outlet end of the second water pump 51, and one end of the fifth connecting pipe 53 passes through the horizontal block 54 and is connected to the water outlet 55, a detachable pad frame 56 is provided on one side of the shell 1, a third connecting pipe 50 is provided at the bottom of one side of the brewing cylinder 36, and the bottom end of the third connecting pipe 50 is connected to the pad frame 56, a fourth connecting pipe 52 is fixed to the liquid inlet end of the second water pump 51, and the fourth connecting pipe 52 is connected to the third connecting pipe 50, a second solenoid valve is provided on the outer wall of the third connecting pipe 50, and the second solenoid valve The valve is located on the right side of the connecting end of the fourth connecting pipe 52 and the third connecting pipe 50; the coffee cup is placed on the pad frame 56, and the second water pump 51 injects the coffee in the brewing cylinder 36 into the water outlet 55 through the cooperation of the fourth connecting pipe 52, the third connecting pipe 50 and the fifth connecting pipe 53, and the coffee is injected into the coffee cup through the water outlet 55. The pad frame 56 can not only place the coffee cup but also collect the spilled coffee. In addition, when it is necessary to rinse the brewing cylinder 36 and the arc screen 39, the brewing cylinder 36 and the arc screen 39 are rinsed through the nozzle at the bottom of the annular tube 49, and after the rinsing is completed, the second solenoid valve on the third connecting pipe 50 is opened, and the water in the brewing cylinder 36 flows into the pad frame 56. The pad frame 56 can be disassembled from the shell 1 at a later stage to facilitate the dumping of the waste liquid in the pad frame 56.

[0061] A coffee machine comprises the above-mentioned coffee machine bean loading assembly.

[0062] Example 2

[0063] refer to Fig.13 , an improvement on the basis of Example 1: a plurality of blades 58 are fixed to the outer wall of the rotating rod 38, and a plurality of through holes 59 are provided in the blades 58; the blades 58 can stir the coffee during the shaking process of the rotating rod 38, and a plurality of through holes 59 are provided in the blades 58, which can fully make the coffee flow in the brewing cylinder 36, further increasing the stirring effect of the coffee.

[0064] A method for using a coffee machine bean dispensing assembly comprises the following steps:

[0065] S1. The return rod 18 is bent to release the cooperation between the return rod 18 and the slot 19, and the brake on the cover plate 3 is released. The cover plate 3 is opened, and the coffee beans are placed in the placement cylinder 2. The placement cylinder 2 is closed, and the screw 17 is driven to rotate by the return rod 18, and the screw 17 drives the lifting plate 13 to move up and down, thereby controlling the extension distance of the extension ring 15 in the measuring cylinder 11, thereby controlling the amount of coffee beans contained in the measuring cylinder 11 and the extension ring 15 to meet the needs of users with different tastes;

[0066] S2. When measuring coffee beans, the driving motor 20 drives the stirring rod 6 to drive the gear 23 to rotate. The gear 23 moves upward under the elastic force of the second spring 22 and meshes with the inner gear ring 25. The stirring rod 6 drives the inner gear ring 25 and the rotating disk 8 to rotate until the top of the measuring barrel 11 cooperates with the discharge port of the placing barrel 2, and the coffee beans in the placing barrel 2 fall into the measuring barrel 11 and the extension ring 15. When the measuring barrel 11 measures coffee beans, the annular electromagnet 26 is energized, and a repulsive force is generated between the annular electromagnet 26 and the magnet ring 24, and the repulsive force is greater than the elastic force of the second spring 22. The gear 23 is disengaged from the inner gear ring 25, and the driving motor 20 continues to drive the stirring rod 6. The stirring rod 6 drives the stirring blade 7 to rotate to stir the coffee beans in the placing cylinder 2, so that the coffee beans fall into the measuring cylinder 11 through the feeding port, and the stirring rod 6 also drives the sliding rod 28 to move back and forth in a straight line through the cooperation of the fixed plate 21, the groove 27 and the ball 30. The sliding rod 28 pushes the measuring cylinder 11 to move in the moving groove 10 through the magnet block 29. After the sliding rod 28 loses the thrust of the fixed plate 21, the sliding rod 28 pushes the measuring cylinder 11 to reset through the action of the magnet block 29, the tension spring 31 and the first spring 12. At this time, the measuring cylinder 11 can be reciprocated to make the coffee beans in the measuring cylinder 11 full, thereby ensuring the accuracy of measuring the coffee beans;

[0067] S3, when the measuring barrel 11 finishes measuring the coffee beans, the annular electromagnet 26 is powered off, the gear 23 is matched with the inner gear ring 25 again, and the stirring rod 6 drives the rotating disk 8 and the measuring barrel 11 to rotate through the inner gear ring 25 until the measuring barrel 11 is aligned with the discharge hole 14, and the coffee beans in the measuring barrel 11 fall into the collecting barrel 32, and the dual-axis motor 35 drives the crushing roller 33 to rotate, and the crushing roller 33 grinds the coffee beans through the grinding blade 34;

[0068] S4. After the coffee beans are ground, the first solenoid valve on the discharge pipe 57 is opened, and the coffee powder falls onto the arc screen 39 through the discharge pipe 57. The third solenoid valve on the first connecting pipe 46 is opened, and the water in the water storage tank 43 is injected into the heating box 44 through the first connecting pipe 46. The water in the heating box 44 is heated by the heating plate 45, and the temperature sensor in the heating box 44 monitors the water temperature in real time, and displays the water temperature on the display screen on one side of the housing 1. When the water temperature reaches 85°C-90°C, the heating plate 45 is turned off, and the first water pump 47 pumps hot water into the annular tube 49 through the second connecting tube 48, and sprays the hot water onto the coffee powder on the arc-shaped screen 39 through the nozzle in the annular tube 49, and the double-axis motor 35 drives the bending rod 42 to rotate slowly under the action of the reduction box 41, and the bending rod 42 drives the rotating rod 38 and the arc-shaped screen 39 to rotate through the reduction box 41, so that the water sprayed from the nozzle can evenly brew the coffee powder, and the arc-shaped screen 39 and the rotating rod 38 rotate slowly during the brewing process, and can also be used to stir the coffee to fully mix the coffee powder;

[0069] S5. After brewing is completed, the coffee cup is placed on the pad frame 56. The second water pump 51 injects the coffee in the brewing cylinder 36 into the water outlet 55 through the cooperation of the fourth connecting pipe 52, the third connecting pipe 50 and the fifth connecting pipe 53. The coffee is injected into the coffee cup through the water outlet 55. The pad frame 56 can not only place the coffee cup but also collect the spilled coffee. In addition, when it is necessary to rinse the brewing cylinder 36 and the arc screen 39, the brewing cylinder 36 and the arc screen 39 are rinsed through the nozzle at the bottom of the annular tube 49. After rinsing, the second solenoid valve on the third connecting pipe 50 is opened, and the water in the brewing cylinder 36 flows into the pad frame 56. The pad frame 56 can be disassembled from the shell 1 at a later time to facilitate dumping of the waste liquid in the pad frame 56.

[0070] However, as is well known to those skilled in the art, the working principles and wiring methods of the second water pump 51, the first water pump 47, the heating plate 45, the dual-axis motor 35, the drive motor 20 and the annular electromagnet 26 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0071] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coffee machine bean feeding assembly, characterized in that: It comprises a shell (1), a placement cylinder (2) is fixedly passed through the top of the shell (1), the placement cylinder (2) is used to hold coffee beans, a cover plate (3) is hinged on the top of the shell (1) through a hinge shaft for closing the placement cylinder (2), and a discharge port for discharging coffee beans is provided on one side of the bottom of the placement cylinder (2); A grinding cylinder (4) is fixed to the bottom of the placement cylinder (2); a gathering cylinder (32) is fixed to the inner wall of the bottom of the grinding cylinder (4); the gathering cylinder (32) is wide at the top and narrow at the bottom, and is used to gather coffee beans for later grinding; a lifting plate (13) is slidably connected to the grinding cylinder (4) and is located above the gathering cylinder (32); a plurality of measuring cylinders (11) are arranged above the lifting plate (13); and the measuring cylinders (11) cooperate with the discharge port to measure an appropriate amount of coffee beans; a crushing roller (33) is rotatably connected to the inner wall of the bottom of the grinding cylinder (4); a plurality of grinding bean blades (34) are fixed to the outer wall of the crushing roller (33); and the grinding bean blades (34) are used to grind coffee beans; a discharge hole (14) is arranged in the lifting plate (13) and is matched with the measuring cylinder (11) and is used to discharge the measured coffee beans into the gathering cylinder (32); A horizontal plate (5) is fixed in the housing (1), and one end of the horizontal plate (5) passes through the grinding cylinder (4). A driving motor (20) is fixed on the top of the horizontal plate (5). A stirring rod (6) is fixed to the output shaft of the driving motor (20) via a coupling. The top end of the stirring rod (6) rotates and extends into the placement cylinder (2). A plurality of stirring blades (7) located in the placement cylinder (2) are fixed to the outer wall of the stirring rod (6). The stirring blades (7) are used to stir the coffee beans to facilitate the discharge of the coffee beans through the discharge port. A heating box (44) is fixed to the bottom inner wall of the housing (1); a brewing cylinder (36) is fixed to the top of the heating box (44); the top of the brewing cylinder (36) is fixedly connected to the bottom of the grinding cylinder (4); an annular tube (49) is fixed inside the brewing cylinder (36); a plurality of nozzles are fixed at the bottom of the annular tube (49) for spraying hot water into the brewing cylinder (36) to complete coffee brewing; A measuring structure, arranged at the bottom of the placement cylinder (2), for measuring an appropriate amount of coffee beans; A brewing structure, arranged in the grinding cylinder (4), for grinding and brewing the measured coffee beans; A liquid extraction structure, arranged on one side of the housing (1) and used for extracting brewed coffee; The measuring structure comprises a circular guide rail (9) fixed to the bottom of the placement cylinder (2); the bottom of the placement cylinder (2) is rotatably connected to a rotating disk (8) via the circular guide rail (9); a plurality of movable grooves (10) are provided in the rotating disk (8); the plurality of movable grooves (10) are slidably connected to a measuring cylinder (11) via a slide rail and a slide groove; a first spring (12) is fixed to the inner wall of the plurality of movable grooves (10) on a side away from each other; and one end of the first spring (12) is fixedly connected to the corresponding measuring cylinder (11); a fixed disk (21) is fixedly sleeved on the outer wall of the stirring rod (6); a gear (23) is slidably connected to the outer wall of the stirring rod (6) via a slide groove and a slide groove; and the outer wall of the stirring rod (6) is sleeved with A second spring (22) is fixedly connected to the bottom of the gear (23), and the bottom end of the second spring (22) is fixedly connected to the top of the fixed disk (21); a magnet ring (24) is fixed to the top of the gear (23); an inner gear ring (25) and an annular electromagnet (26) are fixed to the bottom of the rotating disk (8); the annular electromagnet (26) is located inside the inner gear ring (25) and cooperates with the magnet ring (24); the inner gear ring (25) cooperates with the gear (23); when the gear (23) and the inner gear ring (25) are meshed, the stirring rod (6) can drive the rotating disk (8) to rotate; when the gear (23) and the inner gear ring (25) are disengaged, the stirring rod (6) can stir the coffee beans in the placement cylinder (2) through the stirring blades (7); The measuring structure further comprises an L-shaped plate (16) fixed to one side of the top of the lifting plate (13); a clearance groove is provided on one side of the grinding cylinder (4); one end of the L-shaped plate (16) penetrates the clearance groove and is slidably connected to the clearance groove; a screw rod (17) is rotatably connected to one side of the grinding cylinder (4) through a base plate; the screw rod (17) is threadedly connected to the L-shaped plate (16); the top end of the screw rod (17) is rotatably extended to the top of the shell (1); a return rod (18) located above the shell (1) is rotatably penetrated in the screw rod (17); a groove (19) is provided on the top of the cover plate (3) and is engaged with the return rod (18); the cooperation of the return rod (18) and the groove (19) is used to brake the cover plate (3); the bottoms of the plurality of measuring cylinders (11) are slidably connected to extension rings (15), and the bottom ends of the extension rings (15) are in contact with the top of the lifting plate (13).

2. The coffee bean feeding assembly of claim 1, characterized in that: The brewing structure comprises a double-shaft motor (35) fixed in a grinding cylinder (4); one of the output shafts of the double-shaft motor (35) is fixedly connected to the bottom end of a grinding roller (33) via a coupling; a reduction box (41) is fixedly connected to the bottom of the grinding cylinder (4); the other output shaft of the double-shaft motor (35) is fixedly connected to the input shaft of the reduction box (41) via a coupling; a bending rod (42) is fixed to the output shaft of the reduction box (41); and the bending rod (42) Located in the brewing cylinder (36), the inner wall of the bottom of the brewing cylinder (36) is provided with a universal ball (37) through a rolling protrusion, a plurality of discharge pipes (57) are fixedly penetrated through the bottom of the grinding cylinder (4), and the bottom ends of the plurality of discharge pipes (57) extend into the brewing cylinder (36), a circular filter is fixed at the top of the discharge pipe (57) to prevent coffee beans from falling into the discharge pipe (57) and clogging the discharge pipe (57), a first solenoid valve is provided in the discharge pipe (57), and the discharge pipe (57) is provided with a first electromagnetic valve. (57) is used to discharge coffee powder downwards, the outer wall of the universal ball (37) is fixed with a rotating rod (38), the outer wall of the rotating rod (38) is fixed with an arc-shaped screen (39), the arc-shaped screen (39) is used to contain coffee powder, the outer wall of the rotating rod (38) is sleeved with a ring (40), the bottom end of the bending rod (42) is fixedly connected to the outer wall of the ring (40), the inner wall of the heating box (44) is fixed with a plurality of heating plates (45), the heating plates (45) are used to discharge coffee powder downwards, The water in the heating box (44) is heated. A temperature sensor is provided on an inner wall of one side of the heating box (44) for detecting the water temperature in real time. A first water pump (47) is fixed to one side of the heating box (44). The liquid inlet end of the first water pump (47) is connected to the heating box (44) through a pipeline. A second connecting pipe (48) is fixed to the liquid outlet end of the first water pump (47). One end of the second connecting pipe (48) extends into the brewing cylinder (36) and is connected to the annular pipe (49).

3. The coffee bean feeding assembly of claim 2, characterized in that: The liquid taking structure comprises a horizontal block (54) fixed to one side of the shell (1), a water outlet (55) being provided at the bottom of the horizontal block (54), a second water pump (51) being fixed to the inner wall of one side of the shell (1), a fifth connecting pipe (53) being fixed to the liquid outlet end of the second water pump (51), and one end of the fifth connecting pipe (53) passing through the horizontal block (54) and being connected to the water outlet (55), a detachable backing plate frame (56) being provided on one side of the shell (1), a third connecting pipe (50) being provided at the bottom of one side of the brewing cylinder (36), and the bottom end of the third connecting pipe (50) being connected to the backing plate frame (56), a fourth connecting pipe (52) being fixed to the liquid inlet end of the second water pump (51), and the fourth connecting pipe (52) being connected to the third connecting pipe (50), and a second solenoid valve being provided on the outer wall of the third connecting pipe (50), and the second solenoid valve being located on the right side of the connecting end of the fourth connecting pipe (52) and the third connecting pipe (50).

4. The coffee bean feeding assembly of claim 3, characterized in that: A detachable water storage tank (43) is provided on a side of the shell (1) away from the horizontal block (54); a first connecting pipe (46) is provided at the bottom of the water storage tank (43); one end of the first connecting pipe (46) passes through the shell (1) and is connected to the heating box (44); a third solenoid valve is provided on the outer wall of the first connecting pipe (46).

5. The coffee bean feeding assembly of claim 4, characterized in that: The top of the horizontal plate (5) is slidably connected to a slide rod (28) via a base, a sphere (30) is fixed to one end of the slide rod (28) close to the stirring rod (6), a plurality of grooves (27) are provided on the outer wall of the fixed plate (21), and the grooves (27) cooperate with the sphere (30), a magnet block (29) is fixed to the other end of the slide rod (28), an iron sheet layer is fixed to one side of the measuring cylinder (11), and the measuring cylinder (11) is magnetically connected to the magnet block (29) via the iron sheet layer, and a tension spring (31) fixedly connected to the base is sleeved on the outer wall of the slide rod (28), and an end of the tension spring (31) away from the base is fixedly connected to the outer wall of the slide rod (28).

6. The coffee bean feeding assembly of claim 5, characterized in that: A plurality of blades (58) are fixed to the outer wall of the rotating rod (38), and a plurality of through holes (59) are provided in the blades (58).

7. A coffee machine, characterized in that The invention comprises a coffee machine bean lowering assembly as claimed in claim 6.

8. The method for using the coffee bean feeding assembly of a coffee machine according to claim 6, characterized in that: The following steps are involved: S1. Operate the return rod (18) to unlock the cover plate (3), open the cover plate (3) and add coffee beans; adjust the height of the lifting plate (13) by means of the screw rod (17), thereby controlling the amount of coffee beans contained in the measuring barrel (11) to meet the requirements of different tastes; S2, starting the driving motor (20), and conveying the coffee beans from the placing cylinder (2) to the measuring cylinder (11) through the cooperation of the stirring rod (6) and the gear (23) and the inner gear ring (25); the annular electromagnet (26) controls the meshing and separation of the gear (23) and the inner gear ring (25), so as to achieve stirring and measuring of the coffee beans; S3, when the coffee beans are measured, the annular electromagnet (26) is powered off, the gear (23) re-engages with the inner gear ring (25), drives the measuring barrel (11) to rotate to the position of the discharge hole (14), and releases the coffee beans into the collecting barrel (32); the double-axis motor (35) is started, and the coffee beans are ground by the crushing roller (33) and the bean grinding blade (34); S4, after the grinding is completed, the hot water is evenly sprayed onto the coffee powder on the arc-shaped screen (39) through the nozzle of the annular tube (49), and at the same time, the bending rod (42) and the arc-shaped screen (39) are slowly rotated to achieve uniform brewing and stirring of the coffee powder; S5. After brewing is completed, the coffee is poured into the coffee cup through the water outlet (55); the pad frame (56) not only supports the coffee cup, but also collects spilled coffee; when cleaning is required, it is rinsed through the nozzle at the bottom of the annular tube (49), and the waste liquid flows into the pad frame (56), which is convenient for subsequent cleaning.

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