Powder processing mechanism and beverage preparation equipment

Abstract

The utility model relates to the technical field of processing powder in beverage preparation equipment, and discloses a powder processing mechanism and beverage preparation equipment. The powder processing mechanism comprises a powder container and a first piston assembly. The powder container defines a containing space and is used for receiving powder. The first piston assembly comprises a first piston and a first driving device, and the first piston is inserted into one end of the containing space. The first driving device comprises a piston rod, a driven bevel gear and a driving bevel gear, the first piston is installed on the top of the piston rod, the driven bevel gear comprises a threaded hole and a bevel gear, the piston rod comprises a threaded rod, the threaded rod is in threaded fit with the threaded hole, and the rotation axis of the driving bevel gear intersects with the rotation axis of the bevel gear. The driving bevel gear drives the driven bevel gear to rotate when being stressed to rotate, and the driven bevel gear drives the piston rod to move back and forth relative to the driven bevel gear. The transmission of driving force can be smooth, the stress of the gear is uniform, and the movement of the first piston is stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of processing powder materials in beverage preparation equipment, and particularly relates to a powder material processing mechanism and a beverage preparation equipment with such a powder material processing mechanism. Background Art

[0002] In a beverage preparation equipment such as a coffee machine, generally, hot water is first delivered into a brewing container to prepare a coffee beverage, and then the powder residue in the brewing container is pushed out by the upward movement of a piston at the bottom of the brewing container. To drive the piston to move, a driving gear and a rack are usually used in cooperation, so that when the driving gear rotates, the rack is driven to drive the piston to move back and forth.

[0003] However, the structure of the cooperation between the driving gear and the rack is likely to cause uneven force on the rack, and further lead to unstable movement of the piston.

[0004] Therefore, it is necessary to provide a powder material processing mechanism and a beverage preparation equipment that can solve the above deficiencies. Summary of the Utility Model

[0005] The utility model aims to provide a powder material processing mechanism and a beverage preparation equipment to solve the technical problem of unstable movement of the piston in the current beverage preparation equipment.

[0006] The utility model solves its technical problems by adopting the following technical solutions: A powder material processing mechanism includes a powder container and a first piston assembly. The powder container defines a receiving space for receiving powder materials. The first piston assembly includes a first piston and a first driving device. The first piston is inserted into one end of the receiving space. The first driving device includes a piston rod, a driven bevel gear, and a driving bevel gear. The first piston is installed at the top of the piston rod. The driven bevel gear includes a threaded hole and a bevel gear. The piston rod includes a threaded rod, and the threaded rod is in threaded cooperation with the threaded hole. The rotation axis of the driving bevel gear intersects with the rotation axis of the bevel gear. When the driving bevel gear is forced to rotate, it drives the driven bevel gear to rotate, and the driven bevel gear drives the piston rod to move back and forth relative to the driven bevel gear.

[0007] Optionally, the first driving device further includes a first power assembly, which is drivingly connected to the driving bevel gear for driving the driving bevel gear to rotate.

[0008] Optionally, the first power assembly includes a first motor, a speed change gear set, and a power output shaft. The first motor drives the speed change gear set to operate, the speed change gear set drives the power output shaft to rotate, and the power output shaft drives the driving bevel gear to rotate.

[0009] Optionally, the powder processing mechanism further includes a first fixing seat disposed around one side of the threaded rod; the first fixing seat is provided with a mounting hole, the driving bevel gear has a rotating portion, the rotating portion is inserted into the mounting hole, and the power output shaft is inserted into the rotating portion and drives the rotating portion to rotate. The first fixing seat is provided with a first limiting groove, the first limiting groove is rotationally engaged with the driven bevel gear and prevents the driven bevel gear from moving along the rotation axis. The first fixing seat is provided with a first limiting block, and the outer peripheral surface of the threaded rod is provided with a first sliding groove, and the first limiting block is slidably engaged with the first sliding groove to prevent the piston rod from rotating and thereby enable the piston rod to perform a reciprocating motion relative to the driven bevel gear.

[0010] Optionally, the powder processing mechanism further includes a second fixing seat disposed around the other side of the threaded rod, and the second fixing seat is connected to the first fixing seat. The second fixing seat is provided with a second limiting groove, the second limiting groove is rotationally engaged with the driven bevel gear and prevents the driven bevel gear from moving along the rotation axis. The second fixing seat is provided with a second limiting block, and the outer peripheral surface of the threaded rod is provided with a second sliding groove, and the second limiting block is slidably engaged with the second sliding groove to prevent the piston rod from rotating and thereby enable the piston rod to perform a reciprocating motion relative to the driven bevel gear.

[0011] Optionally, the driven bevel gear includes an annular flange, the first limiting groove and the second limiting groove form at least a part of an annular groove, and the annular flange is received in the annular groove; and / or, the sliding surfaces of the first limiting block and the second limiting block are arranged in parallel, and the extending direction of the first sliding groove and the extending direction of the second sliding groove are parallel to the rotation axis of the threaded rod.

[0012] Optionally, the powder processing mechanism further includes a second piston assembly, the second piston assembly includes a second piston and a second driving device, and the second driving device is configured to drive the second piston to move towards the top opening of the accommodating space and enter the accommodating space; the second piston is provided with a water supply channel facing the accommodating space.

[0013] The present utility model further adopts the following technical solution to solve its technical problems: A beverage preparation device includes the powder processing mechanism according to any one of the above and a brewing system. The brewing system is in fluid communication with the powder container and is configured to convey water into the powder container so as to prepare a beverage by mixing the water with the powder.

[0014] Optionally, the powder processing mechanism further includes a second piston assembly, which includes a second piston and a second driving device. The second driving device is configured to drive the second piston to move towards the top opening of the accommodation space and enter the accommodation space. The second piston is provided with a water supply channel facing the accommodation space. The brewing system includes a first water supply pipe, which is installed on the second piston assembly. The end of the first water supply pipe is in a state of fluid connection and disconnection with the water supply channel. When the end of the first water supply pipe is in a state of fluid connection with the water supply channel, the first water supply pipe is used to discharge water, and the water enters the accommodation space through the water supply channel.

[0015] Optionally, the powder processing mechanism further includes a powder guiding assembly and a driving assembly. The powder guiding assembly is used to receive powder and discharge the powder. The driving assembly is connected to the powder guiding assembly and is configured to drive the powder guiding assembly to move between a first position and a second position. Wherein, in the first position, the powder guiding assembly is close to the powder container, and the discharged powder can fall into the accommodation space. In the second position, the powder guiding assembly leaves the powder container; and / or, the beverage preparation device is a coffee machine.

[0016] The beneficial effects of the present utility model are as follows: In the powder processing mechanism and the beverage preparation device of this embodiment, by using the cooperation of a driven bevel gear and a driving bevel gear, since the contact line of the gear is relatively long and the load distribution is uniform, the smooth transmission of the driving force and the uniform force on the gear can be realized, thereby making the reciprocating movement of the first piston relatively stable and reliable. In addition, by using the cooperation of a driven bevel gear and a driving bevel gear, the transmission direction can be changed, so as to provide a relatively compact structure. Description of the Drawings

[0017] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the drawings in the drawings do not constitute a proportional limitation.

[0018] Figure 1 It is an assembly schematic diagram of a beverage preparation device provided by an embodiment of the present utility model;

[0019] Figure 2 is Figure 1 a three-dimensional exploded schematic diagram of the illustrated beverage preparation device;

[0020] Figure 3 is Figure 2 an enlarged schematic diagram of a part of the structure of the illustrated beverage preparation device;

[0021] Figure 4 is Figure 2 an enlarged schematic view of another part of the beverage preparation device shown;

[0022] Figure 5 a schematic view of the installation relationship between the first water supply pipe and the second piston assembly in the beverage preparation device provided by an embodiment of the present invention;

[0023] Figure 6 a schematic view of the installation relationship between the first driving device and the first fixing seat and the second fixing seat in the beverage preparation device provided by an embodiment of the present invention;

[0024] Figure 7 a partial sectional view of the beverage preparation device provided by an embodiment of the present invention. Detailed implementation manners

[0025] For the convenience of understanding the present invention, the present invention will be described in more detail below with reference to the drawings and specific embodiments. It should be noted that when an element is expressed as "fixed to" another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. When an element is expressed as "connected to" another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are only for the purpose of illustration.

[0026] In addition, in order to easily describe the relationship between one component or component and another component or component shown in the drawings, spatial relative terms, such as "lower part", "upper part" and similar terms, may be used in this article. It should be understood that the spatial relative terms are intended to cover different orientations of the device in use and operation in addition to the orientations depicted in the drawings. For example, if the device in the drawings is inverted, the component described as being "lower" than other components or components can then be oriented "above" other components or components.

[0027] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0028] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] Refer toFigure 1 and Figure 2 as shown Figure 1 is an assembly schematic diagram of a beverage preparation device 200 provided by an embodiment of the present utility model. Figure 2 is Figure 1 a three-dimensional exploded schematic diagram of the beverage preparation device 200 shown. In this embodiment, the beverage preparation device 200 may include a powder processing mechanism 100A and a brewing system 100C. The brewing system 100C is in fluid communication with a powder container 427 of the powder processing mechanism 100A, and is configured to convey water into the powder container 427 so as to mix water with the powder to prepare a beverage. The powder may be particulate matter such as coffee powder or tea powder that can form a beverage after being soaked in water.

[0030] In one embodiment, the powder processing mechanism 100A includes a powder guiding assembly 45A, a powder container 427, and a driving assembly 45B. The powder guiding assembly 45A is used to receive the powder and discharge the powder. The powder container 427 defines a receiving space 4271. The driving assembly 45B is connected to the powder guiding assembly 45A and is used to drive the powder guiding assembly 45A to move between a first position and a second position. The powder guiding assembly 45A can be stably positioned at the first position, and can be driven to move to the second position and remain stable, and vice versa. Among them, when at the first position, the powder guiding assembly 45A is close to the powder container 427, and the discharged powder can fall into the receiving space 4271. When at the second position, the powder guiding assembly 45A is separated from the powder container 427.

[0031] In the powder processing mechanism 100A of the above embodiment, by using the driving assembly 45B to drive the powder guiding assembly 45A to move close to the powder container 427, the discharged powder can fall into the receiving space 4271, and then subsequent brewing operations on the powder can be realized in the powder container 427; by using the driving assembly 45B to drive the powder guiding assembly 45A away from the powder container 427, condensation of water vapor at the outlet of the powder guiding assembly 45A during subsequent brewing operations can be reduced or avoided. Accordingly, the powder will not adhere to the outlet of the powder guiding assembly 45A, and blockage of the outlet will not occur; users do not need to maintain the beverage preparation device to eliminate the blockage. Therefore, the present application can improve the convenience of the beverage preparation device 200 adopting this powder processing mechanism 100A.

[0032] In some embodiments, in combination with Figure 2 、 Figure 3 and Figure 4 as shown Figure 3 is Figure 2 an enlarged schematic diagram of a part of the structure of the beverage preparation device 200 shown. Figure 4 is Figure 2The enlarged schematic diagram of another part of the structure of the beverage preparation device 200 is shown. The powder guide assembly 45A defines a powder guide channel, and the powder guide channel includes a discharge port 4501. In the first position, the discharge port 4501 is arranged toward the accommodating space 4271, for example, the discharge port 4501 can be arranged downward and located directly above the accommodating space 4271. In the second position, the discharge port 4501 is staggered with the accommodating space 4271; for example, the discharge port 4501 can be moved to the left or right side directly above the accommodating space 4271, thereby achieving a staggered arrangement. The powder guide assembly 45A includes a matching portion 4521, and the matching portion 4521 is driven and matched with the driving assembly 45B, thereby driving the powder guide assembly 45A to move. By setting the powder guide channel, the powder can be easily transported to a predetermined position, and by setting the matching portion 4521, it can be conveniently driven by the driving assembly 45B, thereby achieving the movement of the entire powder guide assembly 45A.

[0033] In some embodiments, in combination Figure 2 and Figure 3 As shown, the powder guide assembly 45A includes a powder guide ring 452, and the matching portion 4521 is a gear tooth provided on the outer peripheral surface of the powder guide ring 452. The driving assembly 45B includes a rotating gear 451, which is meshed with the gear tooth and is used to drive the powder guide assembly 45A to rotate. These gear teeth can extend parallel to the central axis of the powder guide ring 452, and correspondingly, the gear teeth of the rotating gear 451 can also extend parallel to the central axis of the powder guide ring 452. The rotating gear 451 can be driven by a fourth motor 454, and the fourth motor 454 can be mounted on a support structure 470, and the support structure 470 is mounted on the base 4. By providing the gear teeth on the outer peripheral surface of the powder guide ring 452, it is easy to cooperate with it through the rotating gear 451, thereby realizing the rotation and movement of the powder guide assembly 45A.

[0034] In some embodiments, in combination Figure 2 and Figure 3 As shown, the powder guide assembly 45A also includes a powder guide cylinder 450, which is installed on the side of the powder guide ring 452 and defines a powder guide channel together, and the discharge port 4501 is located at the bottom of the powder guide cylinder 450. For example, the side wall of the powder guide ring 452 may be provided with a first through hole, so that the powder inside the powder guide ring 452 can pass through the first through hole and enter the powder guide cylinder 450. The powder guide cylinder 450 may include a second through hole extending up and down, and the second through hole may be directly connected to the first through hole, or connected through a third through hole provided in the powder guide cylinder 450. The third through hole may extend downwardly from the first through hole and be connected to the second through hole. The discharge port 4501 may be an open opening at the lower end of the second through hole. At least the first through hole and the second through hole constitute the powder guide channel, or at least the first through hole, the third through hole and the second through hole constitute the powder guide channel. In this way, by assembling the powder guide cylinder 450 and the powder guide ring 452, it is convenient for structural design and production.

[0035] In some embodiments, in combination with Figures 2 to 4 as shown, the rotating gear 451 is arranged to rotate about a first axis A1, the powder guiding ring 452 is arranged to rotate about a second axis A2, and the accommodating space 4271 has a third axis A3; the first axis A1, the second axis A2, and the third axis A3 are parallel and non-coincident. In this way, the layout between components can be facilitated, making the structure compact and saving space.

[0036] In some embodiments, in combination with Figure 2 and Figure 3 as shown, the powder processing mechanism 100A further includes a grinding assembly 43A for grinding raw materials into powder; at least a part of the grinding assembly 43A is located in the powder guiding assembly 45A so that the ground powder is received by the powder guiding assembly 45A. For example, the outlet of the grinding assembly 43A can be located inside the powder guiding ring 452 or communicate with the inside of the powder guiding ring 452 so that the ground powder is input into the inside of the powder guiding ring 452. The powder guiding assembly 45A includes a powder pusher 447, and the powder pusher 447 is installed on the grinding assembly 43A to be driven by the grinding assembly 43A to rotate, thereby pushing the powder to discharge the powder. In this way, the grinding of raw materials such as coffee beans into powder can be achieved through the grinding assembly 43A, and while the powder is being ground, the powder can be discharged towards the discharge port 4501 through the powder pusher 447.

[0037] In some embodiments, in combination with Figure 2 and Figure 3 as shown, the grinding assembly 43A includes a first grinding member 105, a second grinding member 439, and a transmission shaft 441. The second grinding member 439 is installed on the transmission shaft 441, and a grinding channel is formed between the first grinding member 105 and the second grinding member 439. The first grinding member 105 can be a cylindrical member with an inner grinding edge, the second grinding member 439 can be a columnar member with an outer grinding edge, and the second grinding member 439 is inserted into the first grinding member 105. The powder pusher 447 is connected to the transmission shaft 441 and includes a plurality of blades 4471. When the powder pusher 447 rotates together with the transmission shaft 441, the plurality of blades 4471 push the powder to move in a centrifugal motion. The blades 4471 can extend along the radial direction of the transmission shaft 441, and the blades 4471 as a whole are parallel to the rotation axis of the transmission shaft 441. In this way, the raw materials can be ground by the first grinding member 105 and the second grinding member 439, and the blades 4471 are driven to rotate by the transmission shaft 441, thereby pushing the powder towards the powder guiding cylinder 450.

[0038] In some embodiments, in combination with Figure 2 and Figure 4As shown, the beverage preparation device 200 or the powder handling mechanism 100A further includes a first piston assembly 42A. The first piston assembly 42A includes a first piston 426 and a first driving device 42B. The first piston 426 is inserted into the lower end of the accommodation space 4271. The first driving device 42B is configured to drive the first piston 426 to move up and down within the accommodation space 4271. In this way, the lower end of the accommodation space 4271 can be blocked by the first piston 426, so that the accommodation space 4271 forms a container capable of accommodating powder and water. Moreover, the first driving device 42B can drive the first piston 426 to move upward within the accommodation space 4271, and then push the powder or the brewed dregs in the accommodation space 4271 out of the accommodation space 4271 to facilitate the next slag scraping operation.

[0039] In some embodiments, in combination with Figure 2 and Figure 4 As shown, the first driving device 42B includes a piston rod 432, a driven bevel gear 433 and a driving bevel gear 431. The first piston 426 is installed at the top of the piston rod 432. The driven bevel gear 433 includes a threaded hole 4331 and a bevel gear 4332. The piston rod 432 includes a threaded rod 4321, and the threaded rod 4321 is in threaded cooperation with the threaded hole 4331. The rotation axis of the driving bevel gear 431 intersects with the rotation axis of the bevel gear 4332. The outer circumferential surface of the bevel gear 4332 is provided with a plurality of teeth, and the extending direction of the tooth tips of these teeth is inclined with respect to the rotation axis of the bevel gear 4332. The outer circumferential surface of the driving bevel gear 431 is provided with a plurality of teeth, and the extending direction of the tooth tips of these teeth is inclined with respect to the rotation axis of the driving bevel gear 431. Additionally, according to the tooth line shape and direction, straight bevel gears, helical bevel gears, etc. can be used. The outer surface of the threaded rod 4321 is provided with threads to be in threaded cooperation with the threaded hole 4331. The rotation axis of the driving bevel gear 431 intersects with the rotation axis of the bevel gear 4332, for example, forming an acute angle or a right angle. When the driving bevel gear 431 is forced to rotate, it drives the driven bevel gear 433 to rotate, and the driven bevel gear 433 drives the piston rod 432 to move up and down relative to the driven bevel gear 433. The first piston 426 can be installed at the top of the piston rod 432 through a fixed shaft 428. In this way, by using the cooperation of the driven bevel gear 433 and the driving bevel gear 431, functions such as smooth transmission of the driving force and uniform force on the gears can be achieved, and thus the up and down movement of the first piston 426 is relatively stable.

[0040] In some embodiments, in combination with Figure 2 and Figure 4As shown, the beverage preparation device 200 or the powder handling mechanism 100A further includes a second piston assembly 41A. The second piston assembly 41A includes a second piston 418 and a second driving device 41B. The second driving device 41B is configured to drive the second piston 418 to move towards the top opening of the accommodation space 4271 and enter the accommodation space 4271. In combination with Figure 5 As shown, Figure 5 FIG. 123 is a schematic diagram showing the installation relationship between the first water supply pipe 419 and the second piston assembly 41A in the beverage preparation device 200 provided by an embodiment of the present invention. The second piston 418 of the second piston assembly 41A is provided with a water supply channel 4181 facing the accommodation space 4271. The brewing system 100C includes a first water supply pipe 419. The first water supply pipe 419 is installed on the second piston assembly 41A. The end 4191 of the first water supply pipe 419 is in a state of fluid communication and fluid disconnection with the water supply channel 4181. When the end 4191 of the first water supply pipe 419 is in a state of fluid communication with the water supply channel 4181, the first water supply pipe 419 is used to discharge water, and the water enters the accommodation space 4271 through the water supply channel 4181. The first water supply pipe 419 can be a Teflon pipe to prevent the accumulation of scale from being reduced. In this way, by providing the second piston assembly 41A, the powder in the accommodation space 4271 can be compacted by the second piston 418, and hot water can be input into the accommodation space 4271 through the first water supply pipe 419 to realize the brewing of the powder, thereby preparing a beverage.

[0041] In some embodiments, the beverage preparation device 200 is implemented as a coffee machine. Correspondingly, the powder used therein is the powder ground from coffee beans.

[0042] In one embodiment, the present application further provides a powder handling mechanism 100A. In combination with Figure 2 and Figure 4As shown, the powder processing mechanism 100A includes a powder container 427 and a first piston assembly 42A. The powder container 427 defines a receiving space 4271 for receiving powder. The first piston assembly 42A includes a first piston 426 and a first driving device 42B. The first piston 426 is inserted into one end of the receiving space 4271. The first driving device 42B includes a piston rod 432, a driven bevel gear 433, and a driving bevel gear 431. The first piston 426 is installed on the top of the piston rod 432. The driven bevel gear 433 includes a threaded hole 4331 and a bevel gear 4332. The piston rod 432 includes a threaded rod 4321, and the threaded rod 4321 is in threaded cooperation with the threaded hole 4331. The rotation axis of the driving bevel gear 431 intersects with the rotation axis of the bevel gear 4332. When the driving bevel gear 431 is forced to rotate, it drives the driven bevel gear 433 to rotate, and the driven bevel gear 433 drives the piston rod 432 to move back and forth relative to the driven bevel gear 433. The first piston 426 can be inserted into either of the opposite ends of the receiving space 4271. When the receiving space 4271 is vertically arranged, the first piston 426 can be inserted into the lower end of the receiving space 4271.

[0043] In the powder processing mechanism 100A of the above embodiment, by using the cooperation of the driven bevel gear 433 and the driving bevel gear 431, since the contact line of the gears is relatively long and the load distribution is uniform, the smooth transmission of the driving force and the uniform force on the gears can be realized, so that the back-and-forth movement of the first piston 426 is relatively stable and reliable. In addition, by using the cooperation of the driven bevel gear 433 and the driving bevel gear 431, the transmission direction can be changed, thereby providing a relatively compact structure.

[0044] In some embodiments, in combination with Figure 2 and Figure 4 As shown, the first driving device 42B further includes a first power assembly 429. The first power assembly 429 is drivingly connected to the driving bevel gear 431 for driving the driving bevel gear 431 to rotate. In this way, the driving force can be provided by the first power assembly 429, and then the driving bevel gear 431 can be driven to rotate.

[0045] In some embodiments, in combination with Figure 2 and Figure 4As shown, the first power assembly 429 includes a first motor 4291, a speed-changing gear set (not shown in the figure), and a power output shaft 4292. The first motor 4291 drives the speed-changing gear set to operate, and the speed-changing gear set drives the power output shaft 4292 to rotate; the power output shaft 4292 drives the driving bevel gear 431 to rotate. The speed-changing gear set may include two or more gears to reduce or increase the rotational speed of the power output shaft 4292. The first motor 4291 and the speed-changing gear set (not shown in the figure) may be installed in the transmission housing 4293. The power output shaft 4292 may be installed on the final-stage gear of the speed-changing gear set to rotate coaxially with the rotation of the final-stage gear. The power output shaft 4292 extends out of the transmission housing 4293 to cooperate with the driving bevel gear 431. In this way, the transmission ratio can be flexibly configured to obtain the required rotational speed of the driving bevel gear 431, and then drive the first piston 426 to move back and forth at a preset speed.

[0046] In some embodiments, in combination with Figure 2 , Figure 4 and Figure 6 as shown, Figure 6 is a schematic diagram of the installation relationship between the first driving device 42B and the first fixing seat 430 and the second fixing seat 436 in the beverage modulation device 200 provided by an embodiment of the present invention. The powder processing mechanism 100A further includes a first fixing seat 430. The first fixing seat 430 is disposed around one side of the threaded rod 4321 and may be located at the bottom end of the powder container 427. The first fixing seat 430 is provided with a cylindrical mounting hole 4301. The driving bevel gear 431 has a cylindrical rotating portion 4311. The rotating portion 4311 is inserted into the mounting hole 4301, and the power output shaft 4292 is inserted into the rotating portion 4311 and drives the rotating portion 4311 to rotate. The first fixing seat 430 is provided with a first limiting groove 4302. The first limiting groove 4302 is rotationally engaged with the driven bevel gear 433 and prevents the driven bevel gear 433 from moving along the rotation axis. The first fixing seat 430 is provided with a first limiting block 4303. The outer peripheral surface of the threaded rod 4321 is provided with a first sliding groove 4322. The first limiting block 4303 is slidably engaged with the first sliding groove 4322 to prevent the piston rod 432 from rotating and thus enable the piston rod 432 to move back and forth relative to the driven bevel gear 433. In this way, the installation of the driving bevel gear 431 can be realized, and the driven bevel gear 433 can be enabled to only move back and forth.

[0047] In some embodiments, in combination with Figure 2 , Figure 4 and Figure 6As shown, the powder processing mechanism 100A further includes a second fixing base 436. The second fixing base 436 is disposed around the other side of the threaded rod 4321, and the second fixing base 436 is connected to the first fixing base 430. The second fixing base 436 is provided with a second limiting groove 4361, and the second limiting groove 4361 is rotationally engaged with the driven bevel gear 433 and prevents the driven bevel gear 433 from moving along the rotation axis. The second fixing base 436 is provided with a second limiting block 4362, and the outer peripheral surface of the threaded rod 4321 is provided with a second sliding groove 4323. The second limiting block 4362 is slidably engaged with the second sliding groove 4323 to prevent the piston rod 432 from rotating and thus enable the piston rod 432 to reciprocate relative to the driven bevel gear 433. In this way, the stable installation of the driven bevel gear 433 can be achieved, and the driven bevel gear 433 can only perform stable reciprocating motion.

[0048] In some embodiments, in combination with Figure 2 、 Figure 4 and Figure 6 As shown, the driven bevel gear 433 includes an annular flange 4333. The first limiting groove 4302 and the second limiting groove 4361 form at least a part of an annular groove, and the annular flange 4333 is received in the annular groove. When the second fixing base 436 is seamlessly connected to the first fixing base 430, the first limiting groove 4302 and the second limiting groove 4361 form a complete annular groove. When there is a gap between the second fixing base 436 and the first fixing base 430, the first limiting groove 4302 and the second limiting groove 4361 form a partial annular groove. In this way, by adopting the cooperation of the annular flange 4333 and the annular groove, the stable rotation of the driven bevel gear 433 can be achieved.

[0049] In some embodiments, in combination with Figure 2 、 Figure 4 and Figure 6 As shown, the sliding surface of the first limiting block 4303 is arranged parallel to the sliding surface of the second limiting block 4362, and the extending direction of the first sliding groove 4322 and the extending direction of the second sliding groove 4323 are parallel to the rotation axis of the threaded rod 4321. In this way, the resistance of the driven bevel gear 433 to drive the threaded rod 4321 to reciprocate can be reduced.

[0050] In some embodiments, in combination with Figure 1 and Figure 2 As shown, the beverage preparation device 200 may further include a housing assembly 1A. The housing assembly 1A includes an upper cover 102, an outer shell 109, a brewing device outer cover 457, and a base 4. The outer shell 109 is surrounded by a circumferential side wall and is installed on the base 4. The upper cover 102 is installed on the top of the outer shell 109, and the three enclose a space for accommodating the above-mentioned powder processing mechanism 100A and the brewing system 100C. The brewing device outer cover 457 is movably installed on the outer shell 109 to open the housing assembly 1A from the side.

[0051] In some embodiments, in combination with Figure 1 , Figure 2 and Figure 7 as shown, Figure 7 FIG. 9 is a partial sectional view of a beverage preparation device 200 provided by an embodiment of the present utility model. The beverage preparation device 200 may further include a color screen assembly 2 and a coffee outlet assembly 461. The color screen assembly 2 and the coffee outlet assembly 461 are installed on a support structure 470, and the support structure 470 is installed on a base 4. The color screen assembly 2 is used to display the operating state of the beverage preparation device 200 and / or for performing touch operations on the beverage preparation device 200. The coffee outlet assembly 461 is communicated with the accommodation space 4271 of the powder container 427 through a pipeline to discharge the prepared coffee beverage.

[0052] In some embodiments, in combination with Figure 1 and Figure 2 as shown, the brewing system 100C may further include a water tank assembly 3 and a heating assembly 458. The water tank assembly 3 is installed on the base 4, and the heating assembly 458 is installed on the base 4 or the support structure 470. The heating assembly 458 heats the water from the water tank assembly 3, and the hot water is connected to the first water supply pipe 419 through a pipeline to achieve the transportation of the hot water.

[0053] In some embodiments, in combination with Figure 1 , Figure 2 and Figure 7 as shown, the powder processing mechanism 100A further includes a coffee bean box 108, which is installed on the support structure 470, and the top of the coffee bean box 108 is exposed outside the upper cover 102. A container cover 101 is movably installed on the top of the coffee bean box 108 for opening and closing the coffee bean box 108. A grinding upper tooth seat 104 is installed at the bottom of the coffee bean box 108, and a coffee box sealing ring 103 is used to achieve the sealing connection between the bottom of the coffee bean box 108 and the grinding upper tooth seat 104. A first grinding member 105 may be disposed inside the grinding upper tooth seat 104 and is configured to prevent rotation.

[0054] In some embodiments, in combination with Figures 1 to 3 and Figure 7 as shown, the powder processing mechanism 100A further includes an adjustment knob 106, a lever 107, a driving gear 442, a powder adjustment gear ring 437, and an encoder 444. The adjustment knob 106 is installed at the top end of the lever 107 for driving the lever 107 to rotate. The lower end of the lever 107 is connected to the encoder 444. By driving the lever 107 to rotate through the adjustment knob 106, the lever 107 can transmit the position information of the adjustment knob 106 to the encoder 444. The function of the encoder 444 is to feedback the signal of the coffee powder fineness level, so as to master the fineness degree of the coffee beans being ground.

[0055] In some embodiments, in combination withFigure 1 , Figure 2 , Figure 4 and Figure 7 As shown in Figure 1 , Figure 2 , Figure 4 and Figure 7 , the powder processing mechanism 100A further includes a fixed pressure rod 401, a microswitch 402, a microswitch fixing seat 403, and a large gear fixing seat 404. The second driving device 41B may further include a transmission gear central shaft 413, a third motor 414, a large pulley 415, a transmission gear 416, an external thread cylinder 41C, and a limit seat 420. The fixed pressure rod 401 may be installed on the top of the external thread cylinder 41C. The microswitch 402 is installed on the microswitch fixing seat 403, and the microswitch fixing seat 403 is installed on the large gear fixing seat 404. The fixed pressure rod 401 may move together with the external thread cylinder 41C, and when the external thread cylinder 41C moves to the highest stroke, the microswitch 402 is actuated by the fixed pressure rod 401, so that the microswitch 402 can limit the rising height of the second piston 418. The large gear fixing seat 404 may be installed on the support structure 470. The limit seat 420 is connected to the large gear fixing seat 404 to accommodate the large pulley 415 therein. The external thread cylinder 41C is in threaded fit with the internal thread of the large pulley 415. The third motor 414 is installed on the large gear fixing seat 404. The transmission gear 416 rotates through the transmission gear central shaft 413 installed on the large gear fixing seat 404 and is driven by the third motor 414. The transmission gear 416 then drives the large pulley 415 to rotate. The rotation of the large pulley 415 can cause the external thread cylinder 41C to move up and down. The external thread cylinder 41C is connected to the second piston 418, thereby driving the second piston 418 to move up and down. The second piston 418 itself may be made of a flexible material, or it is a rigid material and a brewing sealing ring 421 is provided on its outer periphery to achieve the overall piston function.

[0056] In some embodiments, as shown in Figure 4 and Figure 5 , a flange 4192 is provided at the end 4191 of the first water supply pipe 419. The end 4191 is inserted into the water supply channel 4181, and the end 4191 of the first water supply pipe 419 is fixed by a conduit fixing member 417. The first water supply pipe 419 may be inserted into the external thread cylinder 41C. An upper brewing one-way valve 422 and an upper brewing one-way valve spring 423 may also be provided in the end portion of the water supply channel 4181. A water dispersion groove may be provided on the lower end surface of the second piston 418. The upper plug screen 424 is installed on the lower end surface and is communicated with the water dispersion groove and the water supply channel 4181 through the mesh holes. The upper brewing one-way valve spring 423 is elastically disposed between the upper brewing one-way valve 422 and the upper plug screen 424 to cut off the water supply channel 4181 when there is no hot water supply and open the water supply channel 4181 when there is hot water supply. The mesh holes of the upper plug screen 424 can both achieve fluid transportation and prevent the powder from entering the water supply channel 4181 reversely.

[0057] In some embodiments, in combination with Figure 4 and Figure 5 As shown, the powder processing mechanism 100A further includes a powder container fixing member 425. The powder container fixing member 425 is installed on the support structure 470 and is used to limit the powder container 427 axially. The powder container 427 is inserted into the housing assembly 1A. The left movable buckle 434 and the right movable buckle 435 can be installed inside the second fixing seat 436 and are used to limit the powder container 427 laterally in a direction perpendicular to the axis of the powder container 427.

[0058] In some embodiments, in combination with Figure 2 and Figure 3 As shown, the powder processing mechanism 100A further includes a rotating seat 438 and a grinding lower tooth seat 440. The powder mixing tooth ring 437 and the rotating seat 438 are fixed by snap fit and can rotate together. The driving gear 442 can be fixed on the encoder 444, and the lower end of the lever 107 is also connected to the driving gear 442 to drive the lever 107 and the driving gear 442 through the adjusting knob 106. The driving gear 442 meshes with the powder mixing tooth ring 437 to drive the powder mixing tooth ring 437 to rotate. The rotating seat 438 can be provided with a driving surface that spirally rises, so as to drive the first grinding member 105 to lift through the driving surface during rotation, thereby adjusting the height of the first grinding member 105, so that the fineness of the coffee powder can be adjusted. The grinding lower tooth seat 440 can be connected to the grinding upper tooth seat 104. The encoder fixing seat 445 is used to fix the encoder 444 and can be installed on the support structure 470.

[0059] In some embodiments, in combination with Figure 2 and Figure 3 As shown, the powder processing mechanism 100A further includes a fixing member 443, an oil-impregnated bearing 446, a powder pushing gasket 448, and a wool ring 449. The fixing member 443 is installed on the transmission shaft 441 and is used to drive the powder pusher 447 to rotate together with the transmission shaft 441. The oil-impregnated bearing 446 is sleeved on the oil-impregnated bearing 446. The powder pushing gasket 448 is arranged on the lower side of the powder pusher 447 to reduce friction. The wool ring 449 is fixed on the grinding gearbox seat 453 and is used to prevent coffee powder from overflowing. The transmission shaft 441 is driven by the internal gearbox assembly 455, and the internal gearbox assembly 455 is driven by the fifth motor 456. The internal gearbox assembly 455 can be installed on the base 4.

[0060] In some embodiments, in combination with Figures 2 to 4As shown, the powder processing mechanism 100A further includes an upper motor bracket 405, a second motor 406, a lower motor bracket 407, a connecting rod 408, a powder scraping residue PCB (printed circuit board) 409, a connecting rod transmission member 410, a slag scraper fixing member 411, a slag scraper 412, a slag guide cylinder 459, and a slag box 460. The upper motor bracket 405 and the lower motor bracket 407 are both fixed to the large gear fixing seat 404 and are used to fix the second motor 406. The second motor 406 is used to drive the connecting rod 408 to rotate. The connecting rod transmission member 410 is sleeved on the connecting rod 408 and is used to rotate together with the connecting rod 408. The slag scraper 412 is rotatably mounted on the top of the powder container 427 through the slag scraper fixing member 411 to allow the slag scraper 412 to only rotate around the slag scraper fixing member 411. The slag box 460 is arranged on the base 4, and the slag guide cylinder 459 is arranged on the slag box 460. The slag scraper 412 is used to scrape the coffee slag pushed out by the first piston 426 into the slag guide cylinder 459 and fall into the slag box 460. The powder scraping residue PCB 409 can be mounted on the support structure 470. The powder scraping residue PCB 409 can include a key switch, which is pressed by an actuating portion on the connecting rod 408 to control the operation of the second motor 406.

[0061] In some embodiments, the beverage preparation device 200 further includes a control system for controlling the operation of the above-mentioned power components such as the motor, switch, color screen assembly 2, etc.

[0062] In an embodiment of the coffee machine, one operation mode is as follows. The beverage preparation device 200 is connected to a power source, and then coffee beans are put into the coffee bean box 108 and ground by the first grinding member 105 and the second grinding member 439. The coffee powder is pushed by the powder pusher 447 to the powder guide cylinder 450 and then falls into the powder container 427. Then, the fourth motor 454 drives the rotating gear 451 to drive the powder guide ring 452 to move the powder guide cylinder 450 away. Then, the third motor 414 drives the transmission gear 416 to drive the large pulley 415 to press the second piston 418 downward to compact the coffee powder. Then, cold water is heated by the heating assembly 458 and enters the first water supply pipe 419 and then enters the powder container 427 to brew coffee. Then, the coffee beverage comes out from the coffee outlet assembly 461. After brewing coffee, the first power assembly 429 is driven to drive the driving bevel gear 431 to drive the driven bevel gear 433 to move the piston rod 432 upward to push the coffee slag up through the first piston 426, and then the coffee slag is scraped into the slag guide cylinder 459 and falls into the slag box 460 by the slag scraper 412.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A powder processing mechanism, characterized in that include: A powder container (427) defines a receiving space (4271), wherein the receiving space (4271) is used to receive the powder; A first piston assembly (42A), the first piston assembly (42A) comprising a first piston (426) and a first driving device (42B), the first piston (426) being inserted into one end of the accommodating space (4271); The first driving device (42B) comprises a piston rod (432), a driven bevel gear (433) and a driving bevel gear (431); the first piston (426) is mounted on the top of the piston rod (432); the driven bevel gear (433) comprises a threaded hole (4331) and a bevel gear (4332); the piston rod (432) comprises a threaded rod (4321); the threaded rod (4321) is threadedly matched with the threaded hole (4331); the rotation axis of the driving bevel gear (431) intersects with the rotation axis of the bevel gear (4332); when the driving bevel gear (431) is rotated under force, the driven bevel gear (433) is driven to rotate; the driven bevel gear (433) drives the piston rod (432) to make a reciprocating motion relative to the driven bevel gear (433).

2. The powder processing mechanism according to claim 1, characterized in that: The first driving device (42B) further comprises a first power assembly (429), wherein the first power assembly (429) is drivingly connected to the driving bevel gear (431) and is used to drive the driving bevel gear (431) to rotate.

3. The powder material processing mechanism according to claim 2, characterized in that: The first power assembly (429) includes a first motor (4291), a speed gear set and a power output shaft (4292); the first motor (4291) drives the speed gear set to operate, the speed gear set drives the power output shaft (4292) to rotate; and the power output shaft (4292) drives the driving bevel gear (431) to rotate.

4. The powder processing mechanism according to claim 3, characterized in that: The powder processing mechanism (100A) further comprises a first fixing seat (430), the first fixing seat (430) being arranged around one side of the threaded rod (4321); the first fixing seat (430) being provided with a mounting hole (4301), the driving bevel gear (431) having a rotating portion (4311), the rotating portion (4311) being inserted into the mounting hole (4301), the power output shaft (4292) being inserted into the rotating portion (4311) and driving the rotating portion (4311) to rotate; The first fixing seat (430) is provided with a first limiting groove (4302), the first limiting groove (4302) is rotationally matched with the driven bevel gear (433) and prevents the driven bevel gear (433) from moving along the rotation axis; The first fixed seat (430) is provided with a first limit block (4303), and the outer peripheral surface of the threaded rod (4321) is provided with a first slide groove (4322). The first limit block (4303) and the first slide groove (4322) are slidably matched to prevent the piston rod (432) from rotating, thereby realizing the reciprocating motion of the piston rod (432) relative to the driven bevel gear (433).

5. The powder material processing mechanism according to claim 4, characterized in that: The powder material processing mechanism (100A) further comprises a second fixing seat (436), wherein the second fixing seat (436) is arranged around the other side of the threaded rod (4321), and the second fixing seat (436) is connected to the first fixing seat (430); The second fixing seat (436) is provided with a second limiting groove (4361), and the second limiting groove (4361) is rotationally matched with the driven bevel gear (433) and prevents the driven bevel gear (433) from moving along the rotation axis; The second fixed seat (436) is provided with a second limit block (4362), and the outer peripheral surface of the threaded rod (4321) is provided with a second slide groove (4323). The second limit block (4362) slidably cooperates with the second slide groove (4323) to prevent the piston rod (432) from rotating and thereby realize the reciprocating motion of the piston rod (432) relative to the driven bevel gear (433).

6. The powder material processing mechanism according to claim 5, characterized in that: The driven bevel gear (433) comprises an annular flange (4333), the first limiting groove (4302) and the second limiting groove (4361) constitute at least a part of an annular groove, and the annular flange (4333) is accommodated in the annular groove; and / or The sliding surface of the first limit block (4303) is arranged in parallel with the sliding surface of the second limit block (4362), and the extension direction of the first slide groove (4322) and the extension direction of the second slide groove (4323) are parallel to the rotation axis of the threaded rod (4321).

7. The powder processing mechanism according to any one of claims 1 to 6, characterized in that: The powder processing mechanism (100A) further includes a second piston assembly (41A), the second piston assembly (41A) includes a second piston (418) and a second driving device (41B), the second driving device (41B) is configured to drive the second piston (418) to move toward the top opening of the accommodating space (4271) and enter the accommodating space (4271); the second piston (418) is provided with a water supply channel (4181) facing the accommodating space (4271).

8. A beverage preparation device, characterized in that include: The powder processing mechanism (100A) according to any one of claims 1 to 6; and A brewing system (100C) is fluidically connected to the powder container (427) and is configured to transport water into the powder container (427) so that the water and the powder are combined to prepare a beverage.

9. The beverage preparation device according to claim 8, characterized in that: The powder material processing mechanism (100A) further comprises a second piston assembly (41A), the second piston assembly (41A) comprising a second piston (418) and a second driving device (41B), the second driving device (41B) being configured to drive the second piston (418) to move toward the top opening of the accommodating space (4271) and enter the accommodating space (4271); the second piston (418) is provided with a water supply channel (4181) facing the accommodating space (4271); The brewing system (100C) includes a first water supply pipe (419), which is installed on the second piston assembly (41A), and the end (4191) of the first water supply pipe (419) is in a state of fluid connection and fluid disconnection with the water supply channel (4181); when the end (4191) of the first water supply pipe (419) is in a state of fluid connection with the water supply channel (4181), the first water supply pipe (419) is used to discharge water and enter the accommodating space (4271) through the water supply channel (4181).

10. The beverage preparation device according to claim 8 or 9, characterized in that: The powder processing mechanism (100A) further comprises a powder guide assembly (45A) and a drive assembly (45B), wherein the powder guide assembly (45A) is used to receive powder and discharge the powder; the drive assembly (45B) is connected to the powder guide assembly (45A) and is used to drive the powder guide assembly (45A) to move between a first position and a second position; wherein, in the first position, the powder guide assembly (45A) is close to the powder container (427), and the discharged powder can fall into the containing space (4271); in the second position, the powder guide assembly (45A) leaves the powder container (427); and / or The beverage preparation device (200) is a coffee machine.

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