Self-cleaning stirring water injection assembly for beverage machine and working method of self-cleaning stirring water injection assembly

Abstract

The invention discloses a self-cleaning stirring water injection assembly for a beverage machine and a working method thereof.The self-cleaning stirring water injection assembly comprises a main body plate, a mounting plate is arranged on the front side of the main body plate, and a machine body is fixed to one side of the mounting plate. The cleaning port pipe flushes the outer surface of the hollow stirring rod in all directions through a guide groove structure with a single hole for water inlet and multiple holes for water outlet, a water injection port pipe is rotatably arranged at the top of the hollow stirring rod, and a power structure for driving the hollow stirring rod to rotate is arranged in the machine body; the mounting plate slides up and down through a guide rail assembly formed by connecting rollers and raised lines in a sliding mode, water is injected through a cleaning opening pipe after manufacturing is completed, the outer surface of the hollow stirring rod is flushed in an all-dimensional mode, water also enters a container, the waste liquid recycling problem is avoided, the maintenance difficulty of equipment is lowered, and the functions of energy conservation and emission reduction are achieved.

Description

Technical Field

[0001] This invention relates to the technical field of beverage machine stirring and water-filling equipment, specifically a self-cleaning stirring and water-filling component for beverage machines and its working method. Background Technology

[0002] Existing beverage machines typically distribute stirring, water injection, steaming, and cleaning functions separately when preparing powdered beverages on-site, resulting in a bulky structure and frequent maintenance. Specifically, traditional lifting mechanisms rely on a combination of double-sided guide rails and limit rods, leading to a complex structure; separate stirring shafts and water injection pipes result in a large structural volume and require separate cleaning of both, causing powder to splatter and adhere to the shaft walls during beverage preparation, forming scale; cleaning processes often use single-hole direct spraying or external localized spraying, resulting in large cleaning blind spots and requiring additional pipelines for waste liquid recovery, creating unsanitary areas. These problems significantly impact the continuous operation of the equipment, increase the workload of maintenance personnel, and also increase the size and cost of the equipment, making solutions to these issues extremely urgent. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a self-cleaning stirring and water-injecting component for a beverage machine and its working method, which can solve the problems in the prior art.

[0004] This invention is achieved through the following technical solution: A self-cleaning stirring and water-injecting assembly for a beverage machine includes a main body plate, an mounting plate on the front side of the main body plate, and an organic body fixed on one side of the mounting plate. The assembly is characterized by having a cleaning port pipe inside the machine body, a hollow stirring rod rotatably mounted inside the machine body, the cleaning port pipe rinsing the outer surface of the hollow stirring rod in all directions through a guide channel structure with a single-hole inlet and multiple-hole outlet, a water inlet pipe rotatably mounted on the top of the hollow stirring rod, a power structure for driving the hollow stirring rod to rotate inside the machine body, the mounting plate sliding up and down via a guide rail assembly using rollers and convex strips, and a synchronous belt pulley assembly on the main body plate driving the mounting plate and the machine body to move up and down.

[0005] In a further technical solution, multiple stirring blades are fixed around the bottom of the hollow stirring rod, and the bottom of the hollow stirring rod is divided into multiple water outlet holes by the stirring blades. A liquid guiding hole is provided inside the hollow stirring rod, and the water outlet holes are connected to the liquid guiding hole. The liquid guiding hole is connected to the water inlet pipe.

[0006] In a further technical solution, a first solenoid valve and a second solenoid valve are fixed on the rear side of the main body plate, and the first solenoid valve and the second solenoid valve are connected to the water inlet pipe and the cleaning inlet pipe.

[0007] A further technical solution includes a guide channel structure comprising a first channel disposed at the bottom of the machine body, the cleaning port pipe communicating with the first channel, a second channel communicating with one side of the first channel, a third channel communicating with one side of the second channel, a plurality of annularly distributed partition plates fixed in the third channel, a fourth channel disposed between the partition plates, a base plate fixed at the bottom of the machine body, a first sealing structure disposed between the base plate and the machine body to seal the third channel and the first channel, a liquid guiding shell fixed in the base plate, a through hole disposed at the bottom of the liquid guiding shell, a fifth channel disposed at the top of the liquid guiding shell, the fifth channel communicating with the through hole, a hollow stirring rod rotating through the liquid guiding shell, and a second sealing structure disposed around the hollow stirring rod to isolate the water from the rotating part of the hollow stirring rod.

[0008] A further technical solution is provided, wherein the first sealing structure includes a sixth groove disposed at the bottom of the body, the sixth groove surrounding the outside of the third groove and the first groove, and a sealing ring is engaged in the sixth groove.

[0009] A further technical solution includes a second sealing structure comprising a locking block fixed to the bottom of the machine body, a sealing ring disposed inside the locking block, the sealing ring abutting against the outer surface of the hollow stirring rod, and multiple bearings disposed inside the machine body, the hollow stirring rod rotating through the bearings.

[0010] A further technical solution includes a power structure comprising a second motor fixed to the machine body, a motor shaft connected to the bottom of the second motor, a third synchronous pulley fixed on the motor shaft, a fourth synchronous pulley fixed on the outer surface of the hollow stirring rod, and a second synchronous belt wound around the outer surfaces of the third and fourth synchronous pulleys, the second synchronous belt connecting the third and fourth synchronous pulleys.

[0011] A further technical solution includes a guide rail fixed to the front side of the main body plate, with one protrusion on each side fixedly arranged inside the guide rail. A roller is rotatably arranged on the rear side of the mounting plate, with an inner groove on the outer surface of the roller. The roller rolls against the protrusions on the left and right sides through the inner groove.

[0012] A further technical solution includes a timing pulley assembly comprising a lower housing fixed to the front side of the main body plate, an upper housing fixed to the main body plate above the lower housing, a first timing pulley rotatably disposed within the lower housing, and a second timing pulley rotatably disposed within the upper housing. A first timing belt is wound around the outer surfaces of the second and first timing pulleys, and the first timing belt provides a power connection between the second and first timing pulleys. A mounting plate is fixedly connected to one side of the first timing belt. A first motor is fixed to the rear side of the main body plate, and the output shaft of the first motor is power-connected to the first timing pulley. A micro switch is also provided on the front side of the main body plate, one at the top and one at the bottom. A baffle is fixed to one side of the mounting plate.

[0013] A method for operating a self-cleaning stirring and water-filling assembly for a beverage machine includes: Step 1, the stirring and water-filling assembly moves downwards. Step 2, after the first motor starts, it drives the first synchronous belt pulley to rotate. The operation of the first synchronous belt drives the mounting plate, machine body, second motor, cover, and hollow stirring rod to move downwards, causing the hollow stirring rod and stirring blades to extend into the container, with the cover covering the top and sides of the container; Step 3, when the baffle moves to the lower micro-switch, the first motor stops working; Step 4, the hollow stirring rod in the stirring and water-filling assembly stirs the contents of the container. Powder is added, and then water is added through the hollow stirring rod. Step 1: After the second motor operates, it drives the third synchronous pulley to rotate. Under the action of the third synchronous pulley, the second synchronous belt, and the fourth synchronous pulley, the hollow stirring rod rotates. The stirring blades on the outer surface of the hollow stirring rod stir the powder in the container. Step 2: After the first solenoid valve connected to the water inlet pipe operates, it injects water into the water inlet pipe, and the water flows downward through the liquid guide hole inside the hollow stirring rod, so that the hollow stirring rod stirs while mixing the water and powder. Step 3: In the... When the hollow stirring rod stirs the mixed powder, the fan works to draw away the water vapor; step 1, the second motor, the first solenoid valve and the second solenoid valve connected to the water inlet pipe stop working; step 3, after the stirring and water injection assembly moves upward into place, the outer surface of the hollow stirring rod is cleaned and the washing liquid is injected into the container; step 1, after the first motor starts, it drives the first synchronous belt pulley to rotate, and the operation of the first synchronous belt drives the mounting plate, the body, the second motor, the cover and the hollow stirring rod to move upward, so that the hollow stirring rod and the stirring blade are moved out of the container; step 2, when the baffle moves... When the microswitch on the upper side is activated, the first motor stops working; step 1, the first and second solenoid valves connected to the cleaning port pipe operate, injecting water into the cleaning port pipe. The water flows from the first, second, and third tanks through multiple fourth tanks, and flows evenly downwards from the inside of the liquid guiding shell into the through hole, and then flows evenly downwards from the outer surface of the hollow stirring rod through the through hole, thoroughly rinsing the outer surface of the hollow stirring rod; step 2, the first and second solenoid valves connected to the cleaning port pipe stop working, and the beverage preparation is complete.

[0014] The beneficial effects of the present invention are: First, compared with the prior art, by utilizing the rolling cooperation of rollers and protrusions, stable lifting and lowering of structures such as mounting plates can be achieved without the need to install more guide rails and limit rods.

[0015] Second, regarding the improvement of the overall working mode of the equipment, when the cover and hollow stirring rod move downwards to the vicinity of the container, the cover can effectively block water vapor, and the fan can expel the water vapor forward. The hollow stirring rod can fully stir the powder in the container. During the stirring process, water is injected through the water inlet pipe and the solvent is mixed using the hollow stirring rod, improving the efficiency of beverage formation. After the process is completed, water is injected through the cleaning pipe to rinse the outer surface of the hollow stirring rod in all directions, and the water also enters the container, avoiding the problem of waste liquid recycling, reducing the difficulty of equipment maintenance, and also achieving the functions of energy saving and emission reduction.

[0016] Third, water can be injected during the stirring process of the hollow stirring rod. This is achieved by setting up a second motor, a third synchronous pulley, a motor shaft, a second synchronous belt, a hollow stirring rod, a water injection pipe, a liquid guide hole, and stirring blades. Furthermore, a liquid guide shell, a locking block, and a sealing ring are set around the hollow stirring rod to prevent water from intruding into the bearing and affecting the rotation of the hollow stirring rod.

[0017] Fourth, regarding the liquid guiding section, the multi-layer structure formed by the base plate, the liquid guiding shell, and the body creates a first, second, third, fourth, and fifth channel between the body and the base plate. This enables the liquid to flow from a single channel to multiple channels, and the liquid is distributed in a ring shape, allowing the liquid to flow downwards along the inner wall of the liquid guiding shell and converge evenly within the through holes. This ensures that the outer surface of the hollow stirring rod can be thoroughly rinsed, avoiding the blind spots that exist in the single-channel rinsing technology of the prior art.

[0018] Fifth, compared with existing technologies, a sixth groove and a sealing ring are also provided, so that the partition plate, the third groove, the fourth groove and the first groove can form a sealed structure with the external space to avoid water leakage and affect the cleaning effect.

[0019] 6. When the base plate is connected to the machine body with fasteners, the base plate can be removed from the bottom of the machine body, which makes it easier for personnel to tilt and maintain the first, second, third, fourth and fifth slots, etc., avoiding the occurrence of impurities and clogging, and improving the convenience of maintenance.

[0020] 7. The high-speed rotation of the stirring motor ensures complete dissolution of the beverage, resulting in a smoother texture; the equipment dispenses water while stirring, making the process faster and more efficient. Attached Figure Description

[0021] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of a self-cleaning stirring and water-injecting assembly for a beverage machine according to the present invention; Figure 2 for Figure 1 A schematic diagram of the rear structure of the middle component; Figure 3 for Figure 1 A cross-sectional view of the middle component; Figure 4 for Figure 1 A schematic diagram of the structure of the middle component from below; Figure 5 for Figure 4 A partially enlarged schematic diagram of the middle component; Figure 6 for Figure 4 Internal structure diagram of the component; Figure 7 for Figure 6 A schematic diagram at point A in the middle; Figure 8 for Figure 1 A cross-sectional view of the middle component; Figure 9 for Figure 8 A schematic diagram at point B in the middle; Figure 10 for Figure 8 A schematic diagram of the structure of the middle component from below; Figure 11 for Figure 10 A schematic diagram at point C in the middle; Figure 12 This is a schematic diagram of the controller's electrical connections; In the figure, the components are: stirring blade 11, hollow stirring rod 12, cover 13, machine body 14, second motor 15, water inlet pipe 16, cleaning inlet pipe 17, mounting plate 18, guide rail 19, protrusion 21, roller 22, second synchronous belt pulley 23, upper housing 24, micro switch 25, baffle 26, main body plate 27, first synchronous belt 28, first synchronous belt pulley 29, lower housing 31, fan 32, second solenoid valve 33, first solenoid valve 34, first motor 35, third synchronous belt pulley 41, motor shaft 42, second synchronous belt 43, liquid guiding housing 44, through hole 45, liquid guiding hole 46, sealing ring 47, bearing 48, fourth synchronous belt pulley 49, bottom plate 51, partition plate 52, third groove 53, fourth groove 54, second groove 55, sixth groove 56, first groove 57, sealing ring 59, locking block 61, and fifth groove 65. Detailed Implementation

[0023] like Figures 1-12 As shown, the present invention will be described in detail. For ease of description, the directions mentioned below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1The self-cleaning stirring and water-filling assembly for a beverage machine according to the present invention has the same vertical, horizontal, front and back directions in its projection relationship. It includes a main body plate 27, an mounting plate 18 on the front side of the main body plate 27, a body 14 fixed on one side of the mounting plate 18, a cleaning port pipe 17 inside the body 14, the cleaning port pipe 17 rinsing the outer surface of the hollow stirring rod 12 in all directions through a guide groove structure with a single inlet and multiple outlet holes. The hollow stirring rod 12 is rotatably arranged inside the body 14, and a water inlet pipe 16 is rotatably arranged on the top of the hollow stirring rod 12. A power structure is provided inside the body 14 to drive the hollow stirring rod 12 to rotate. The mounting plate 18 slides up and down through a guide rail assembly that uses rollers and convex strips for sliding connection. A synchronous belt pulley assembly is provided on the main body plate 27 to drive the mounting plate 18 and the body 14 to move up and down.

[0024] Advantageously, the water inlet pipe 16 is connected to the hollow stirring rod 12 by a quick-connect interface, so that the water passage remains open when the hollow stirring rod 12 rotates at the bottom of the water inlet pipe 16.

[0025] Advantageously, multiple stirring blades 11 are fixed around the bottom of the hollow stirring rod 12, and the bottom of the hollow stirring rod 12 is divided into multiple water outlet holes by the stirring blades 11. A liquid guiding hole 46 is provided inside the hollow stirring rod 12, and the water outlet holes and the liquid guiding hole 46 are connected. The liquid guiding hole 46 is connected to the water inlet pipe 16.

[0026] Advantageously, a first solenoid valve 34 and a second solenoid valve 33 are fixed on the rear side of the main body plate 27. The first solenoid valve 34 and the second solenoid valve 33 are connected. The outlet of the second solenoid valve 33 is connected to the water inlet pipe 16 and the cleaning inlet pipe 17 respectively. The second solenoid valve 33 is switched on and off by electrical control to switch the water path so that the water flows to the water inlet pipe 16 and the cleaning inlet pipe 17 respectively. The second solenoid valve 33 is a two-position three-way solenoid valve. During the water injection process, it is not energized and is connected to the water inlet pipe 16 through the bypass of the second solenoid valve 33. After it is energized, it is connected to the cleaning inlet pipe 17 through the direct path.

[0027] Advantageously, a fan 32 is fixed on one side of the main body plate 27. After the fan 32 is working, it sucks away the water vapor and blows it forward.

[0028] Advantageously, the guide channel structure includes a first channel 57 located at the bottom of the body 14, a cleaning port pipe 17 inserted into and communicating with the first channel 57, a second channel 55 connected to one side of the first channel 57, a third channel 53 connected to one side of the second channel 55, a plurality of annularly distributed partition plates 52 fixed in the third channel 53, a fourth channel 54 between the partition plates 52, a base plate 51 fixed at the bottom of the body 14, a first sealing structure between the base plate 51 and the body 14 for sealing the third channel 53 and the first channel 57, a liquid guiding shell 44 fixed in the base plate 51, a through hole 45 at the bottom of the liquid guiding shell 44, a fifth channel 65 at the top of the liquid guiding shell 44, the fifth channel 65 communicating with the through hole 45, a hollow stirring rod 12 rotating through the liquid guiding shell 44, and a second sealing structure for isolating the water from the rotating part of the hollow stirring rod 12 around the hollow stirring rod 12.

[0029] Advantageously, the top outer surface of the liquid guiding shell 44 is provided with a groove for installing and fixing the base plate 51. The base plate 51 abuts against the lower end face of the partition plate 52, so that the liquid flows out sequentially from the first groove 57, the second groove 55, the third groove 53, the fourth groove 54 and the through hole 45.

[0030] Advantageously, a cover 13 is fixedly provided at the bottom of the base plate 51, and the cover 13 covers the hollow stirring rod 12.

[0031] Advantageously, the first sealing structure includes a sixth groove 56 disposed at the bottom of the body 14. The sixth groove 56 has a teardrop-shaped structure and surrounds the outer side of the third groove 53 and the first groove 57. A sealing ring 59 is engaged in the sixth groove 56. After the base plate 51 is fixed to the body 14, the sealing ring 59, the base plate 51 and the body 14 form a sealing space.

[0032] Advantageously, the second sealing structure includes a locking block 61 fixed to the bottom of the body 14, a sealing ring 47 is provided inside the locking block 61, the sealing ring 47 abuts against the outer surface of the hollow stirring rod 12, a plurality of bearings 48 are provided inside the body 14, the hollow stirring rod 12 rotates through the bearings 48, and the area between the locking block 61 and the liquid guiding shell 44 is used to guide the water liquid.

[0033] Advantageously, the power structure includes a second motor 15 fixed to the body 14, a motor shaft 42 connected to the bottom of the second motor 15, a third synchronous pulley 41 fixed on the motor shaft 42, a fourth synchronous pulley 49 fixed to the outer surface of the hollow stirring rod 12, and a second synchronous belt 43 wound around the outer surfaces of the third synchronous pulley 41 and the fourth synchronous pulley 49, the second synchronous belt 43 connecting the third synchronous pulley 41 and the fourth synchronous pulley 49.

[0034] Advantageously, the guide rail assembly includes a guide rail 19 fixed to the front side of the main body plate 27. The guide rail 19 has a concave structure. A protrusion 21 is fixedly provided on the left and right sides inside the guide rail 19. A roller 22 is rotatably provided on the rear side of the mounting plate 18. The outer surface of the roller 22 is provided with an inner groove. The roller 22 rolls against the protrusions 21 on the left and right sides through the inner groove.

[0035] Advantageously, the synchronous pulley assembly includes a lower housing 31 fixed to the front side of the main body plate 27, an upper housing 24 fixed to the main body plate 27 and disposed above the lower housing 31, a first synchronous pulley 29 rotatably disposed within the lower housing 31, and a second synchronous pulley 23 rotatably disposed within the upper housing 24. A first synchronous belt 28 is wound around the outer surfaces of the second synchronous pulley 23 and the first synchronous pulley 29, and the first synchronous belt 28 provides a power connection between the second synchronous pulley 23 and the first synchronous pulley 29. Plate 18 is fixedly connected to one side of the first synchronous belt 28, so that the first synchronous belt 28 can drive the mounting plate 18 and the machine body 14 to move up and down during operation. The first motor 35 is fixed to the rear side of the main plate 27. The output shaft of the first motor 35 is poweredly connected to the first synchronous belt pulley 29. The front side of the main plate 27 is also provided with a micro switch 25 at the top and bottom. A baffle 26 is fixed to one side of the mounting plate 18. The micro switch 25 is used to limit the movement of the baffle 26, the mounting plate 18 and the machine body 14.

[0036] Advantageously, it also includes a controller electrically connected to the second motor 15, the first solenoid valve 34, the second solenoid valve 33, the micro switch 25 and the first motor 35, so that the controller can control the start and stop of the first motor 35, control the start and stop of the first solenoid valve 34 and the second solenoid valve 33, control the start and stop of the second motor 15, and electrically connect to the fan 32 so that the controller can control the start and stop of the fan 32.

[0037] A method for operating a self-cleaning stirring and water-injecting assembly for a beverage machine includes: first, the stirring and water-injecting assembly moves downward; second, the hollow stirring rod 12 in the stirring and water-injecting assembly stirs the powder in the container, and then stirs and injects water from inside the hollow stirring rod 12; third, after the stirring and water-injecting assembly moves upward into place, it cleans the outer surface of the hollow stirring rod 12 and injects the washing liquid into the container.

[0038] Beneficially, the first step includes the following steps: Step 1.1, after the first motor 35 starts, it drives the first synchronous pulley 29 to rotate. The operation of the first synchronous belt 28 drives the mounting plate 18, the machine body 14, the second motor 15, the cover 13 and the hollow stirring rod 12 to move downward, so that the hollow stirring rod 12 and the stirring blade 11 extend into the container, and the cover 13 covers the top of the container; Step 1.2, when the baffle 26 moves to the micro switch 25 on the lower side, the first motor 35 stops working.

[0039] Advantageously, the second step includes the following steps: Step 2.1, after the second motor 15 starts working, it drives the third synchronous pulley 41 to rotate. Under the action of the third synchronous pulley 41, the second synchronous belt 43, and the fourth synchronous pulley 49, the hollow stirring rod 12 rotates, and the stirring blades 11 on the outer surface of the hollow stirring rod 12 stir the powder in the container; Step 2.2, after the first solenoid valve 34 connected to the water inlet pipe 16 starts working, it injects water into the water inlet pipe 16, and the water flows out downward through the liquid guide hole 46 in the hollow stirring rod 12, so that the hollow stirring rod 12 stirs and mixes the water and powder at the same time; Step 2.3, when the hollow stirring rod 12 is stirring and mixing the powder, the fan 32 starts working and sucks away the water vapor; Step 2.4, the second motor 15, the first solenoid valve 34 connected to the water inlet pipe 16 and the second solenoid valve 33 stop working.

[0040] Beneficially, the third step includes the following steps: Step 3.1, after the first motor 35 starts, it drives the first synchronous pulley 29 to rotate, and through the operation of the first synchronous belt 28, it drives the mounting plate 18, the machine body 14, the second motor 15, the cover 13, and the hollow stirring rod 12 to move upward, so that the hollow stirring rod 12 and the stirring blade 11 are moved out of the container; Step 3.2, when the baffle 26 moves to the upper micro switch 25, the first motor 35 stops working; Step 3.3, the connection to the cleaning port pipe 17... The first solenoid valve 34 and the second solenoid valve 33 are activated to inject water into the cleaning port 17. The water flows from the first tank 57, the second tank 55, and the third tank 53, and then through multiple fourth tanks 54. It flows evenly downward from the inside of the liquid guide housing 44 into the through hole 45, and then flows evenly downward from the outer surface of the hollow stirring rod 12 through the through hole 45, thoroughly rinsing the outer surface of the hollow stirring rod 12. In step 3.4, the first solenoid valve 34 and the second solenoid valve 33 connected to the cleaning port 17 stop working, and the beverage preparation is completed.

[0041] After the above three steps are completed, the powder in the container has been formed into a beverage, and the residue on the outer surface of the hollow stirring rod 12 has been rinsed and flowed back into the container.

[0042] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions conceived without creative effort should be included within the scope of protection of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A self-cleaning stirring and water-filling assembly for a beverage machine, comprising a main body plate (27), wherein a mounting plate (18) is provided on the front side of the main body plate (27), and an organic body (14) is fixed on one side of the mounting plate (18), characterized in that, The machine body (14) is also provided with a cleaning port pipe (17). A hollow stirring rod (12) is rotatably arranged inside the machine body (14). The cleaning port pipe (17) rinses the outer surface of the hollow stirring rod (12) in all directions through a guide groove structure with a single inlet and multiple outlet. A water inlet pipe (16) is rotatably arranged on the top of the hollow stirring rod (12). A power structure is provided inside the machine body (14) to drive the hollow stirring rod (12) to rotate. The mounting plate (18) slides up and down through a guide rail assembly that uses rollers and convex strips for sliding connection. A synchronous belt pulley assembly is provided on the main plate (27) to drive the mounting plate (18) and the machine body (14) to move up and down.

2. The self-cleaning stirring and water-injecting assembly for a beverage machine according to claim 1, characterized in that: The hollow stirring rod (12) has multiple stirring blades (11) fixed around its bottom. The bottom of the hollow stirring rod (12) is divided into multiple water outlet holes by the stirring blades (11). A liquid guiding hole (46) is provided inside the hollow stirring rod (12). The water outlet holes are connected to the liquid guiding hole (46). The liquid guiding hole (46) is connected to the water inlet pipe (16).

3. The self-cleaning stirring and water-injecting assembly for a beverage machine according to claim 1, characterized in that: A first solenoid valve (34) and a second solenoid valve (33) are fixed on the rear side of the main plate (27). The first solenoid valve (34) and the second solenoid valve (33) are connected to the water inlet pipe (16) and the cleaning inlet pipe (17).

4. The self-cleaning stirring and water-injecting assembly for a beverage machine according to claim 1, characterized in that: The guide channel structure includes a first channel (57) disposed at the bottom of the body (14), the cleaning port pipe (17) communicating with the first channel (57), a second channel (55) communicating with one side of the first channel (57), a third channel (53) communicating with one side of the second channel (55), a plurality of annularly distributed partition plates (52) fixed in the third channel (53), a fourth channel (54) disposed between the partition plates (52), a base plate (51) fixed at the bottom of the body (14), and a pair of... The first sealing structure seals the third groove (53) and the first groove (57) around. A liquid guiding shell (44) is fixed inside the bottom plate (51). A through hole (45) is provided at the bottom of the liquid guiding shell (44). A fifth groove (65) is provided at the top of the liquid guiding shell (44). The fifth groove (65) is connected to the through hole (45). The hollow stirring rod (12) rotates through the liquid guiding shell (44). A second sealing structure is also provided around the hollow stirring rod (12) to isolate the water from the rotating part of the hollow stirring rod (12).

5. A self-cleaning stirring and water-injecting assembly for a beverage machine according to claim 4, characterized in that: The first sealing structure includes a sixth groove (56) disposed at the bottom of the body (14), the sixth groove (56) surrounding the outside of the third groove (53) and the first groove (57), and a sealing ring (59) is engaged in the sixth groove (56).

6. A self-cleaning stirring and water-injecting assembly for a beverage machine according to claim 4, characterized in that: The second sealing structure includes a locking block (61) fixed to the bottom of the body (14), a sealing ring (47) is provided inside the locking block (61), the sealing ring (47) abuts against the outer surface of the hollow stirring rod (12), and a plurality of bearings (48) are provided inside the body (14), through which the hollow stirring rod (12) rotates.

7. A self-cleaning stirring and water-filling assembly for a beverage machine according to claim 1, characterized in that: The power structure includes a second motor (15) fixed on the body (14), a motor shaft (42) is connected to the bottom of the second motor (15), a third synchronous pulley (41) is fixed on the motor shaft (42), a fourth synchronous pulley (49) is fixed on the outer surface of the hollow stirring rod (12), and a second synchronous belt (43) is wound around the outer surfaces of the third synchronous pulley (41) and the fourth synchronous pulley (49), and the second synchronous belt (43) connects the third synchronous pulley (41) and the fourth synchronous pulley (49).

8. A self-cleaning stirring and water-injecting assembly for a beverage machine according to claim 1, characterized in that: The guide rail assembly includes a guide rail (19) fixed to the front side of the main body plate (27). A protrusion (21) is fixedly provided on the left and right sides inside the guide rail (19). A roller (22) is rotatably provided on the rear side of the mounting plate (18). The outer surface of the roller (22) is provided with an inner groove. The roller (22) rolls against the protrusions (21) on the left and right sides through the inner groove.

9. A self-cleaning stirring and water-filling assembly for a beverage machine according to claim 1, characterized in that: The synchronous belt pulley assembly includes a lower housing (31) fixed to the front side of the main body plate (27), an upper housing (24) fixed to the main body plate (27) and disposed above the lower housing (31), a first synchronous pulley (29) rotatably disposed inside the lower housing (31), and a second synchronous pulley (23) rotatably disposed inside the upper housing (24), a first synchronous belt (28) being wound around the outer surfaces of the second synchronous pulley (23) and the first synchronous pulley (29). The belt (28) connects the second synchronous pulley (23) and the first synchronous pulley (29) to each other. The mounting plate (18) is fixedly connected to one side of the first synchronous belt (28). A first motor (35) is fixed to the rear side of the main plate (27). The output shaft of the first motor (35) is connected to the first synchronous pulley (29). A micro switch (25) is also provided on the front side of the main plate (27), and a baffle (26) is fixed to one side of the mounting plate (18).

10. A method for operating a self-cleaning stirring and water-injecting assembly for a beverage machine as described in claims 1-9, characterized in that: include: Step 1: The stirring and water-injecting assembly moves downward. Step 1.1: After the first motor (35) starts, it drives the first synchronous pulley (29) to rotate. The operation of the first synchronous belt (28) drives the mounting plate (18), the machine body (14), the second motor (15), the cover (13), and the hollow stirring rod (12) to move downward, so that the hollow stirring rod (12) and the stirring blade (11) extend into the container, and the cover (13) covers the top of the container. Step 1.2: When the baffle (26) moves to the micro switch (25) on the lower side, the first motor (35) stops working. Step 2: The hollow stirring rod (12) in the stirring and water-injecting assembly stirs the powder in the container, and then from the middle... Step 2.1: After the second motor (15) starts working, it drives the third synchronous pulley (41) to rotate. Under the action of the third synchronous pulley (41), the second synchronous belt (43) and the fourth synchronous pulley (49), the hollow stirring rod (12) rotates. The stirring blades (11) on the outer surface of the hollow stirring rod (12) stir the powder in the container. Step 2.2: After the first solenoid valve (34) connected to the water inlet pipe (16) starts working, it injects water into the water inlet pipe (16) and flows out through the liquid guide hole (46) in the hollow stirring rod (12) downwards, so that the hollow stirring rod (12) stirs and mixes the water and powder at the same time. Step 2.3, when the hollow stirring rod (12) stirs the mixed powder, the fan (32) works to suck away the water vapor; Step 2.4, the second motor (15), the first solenoid valve (34) and the second solenoid valve (33) connected to the water inlet pipe (16) stop working; Step 3, after the stirring and water injection assembly moves upward into place, the outer surface of the hollow stirring rod (12) is cleaned and the washing liquid is injected into the container; Step 3.1, after the first motor (35) starts, it drives the first synchronous pulley (29) to rotate, and through the operation of the first synchronous belt (28), it drives the mounting plate (18), the body (14), the second motor (15), the cover (13) and the hollow stirring rod (12) to move upward, so that the hollow stirring rod (12) and the stirring blade (11) are moved out of the container; Step 3.2, when the baffle (26) When the micro switch (25) is moved to the upper side, the first motor (35) stops working; in step 3.3, the first solenoid valve (34) and the second solenoid valve (33) connected to the cleaning port (17) work to inject water into the cleaning port (17). The water flows from the first tank (57), the second tank (55), and the third tank (53) and then through multiple fourth tanks (54). It flows down evenly from the inside of the liquid guide housing (44) into the through hole (45) and flows down evenly from the outer surface of the hollow stirring rod (12) through the through hole (45) to fully rinse the outer surface of the hollow stirring rod (12); in step 3.4, the first solenoid valve (34) and the second solenoid valve (33) connected to the cleaning port (17) stop working, and the beverage preparation is completed.

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