Brewing devices and beverage machines

Abstract

This utility model discloses a brewing device and a beverage machine. The brewing device includes: a support; a brewing cylinder movably mounted on the support, the brewing cylinder forming a brewing chamber having a central axis and a filling opening for filling beverage particles; an upper piston, which is movable relative to the brewing cylinder along the central axis to selectively close the brewing chamber from above the filling opening; a lower piston engaged with the brewing cylinder, which is movable relative to the brewing cylinder along the central axis; and a particle channel disposed on the support. The brewing cylinder has a first position and a second position relative to the support. In the first position, the filling opening and the outlet position of the particle channel are offset, and the position of the brewing chamber corresponds to the position of the upper piston. In the second position, the filling opening and the outlet position of the particle channel correspond, the position of the brewing chamber and the upper piston are offset, and the particle channel extends at least partially into the brewing chamber. The particle channel extending into the brewing chamber prevents beverage particles from overflowing during the conveying process.

Description

Technical Field

[0001] This utility model relates to the field of beverage preparation technology, and in particular to a brewing device and a beverage machine. Background Technology

[0002] In the current field of beverage machine technology, brewing devices are widely used in homes and commercial establishments. These devices can be programmed to complete a series of processes, from grinding beverage ingredients to heating water to brew the beverage granules, allowing users to conveniently and quickly enjoy high-quality beverages.

[0003] These brewing devices typically include a brewing cylinder, an upper piston, and a lower piston, used to form and adjust the volume of the brewing chamber to extract beverage particles. However, existing brewing devices have some problems during use. During the beverage particle transport process, powder splattering / overflowing is prone to occur. During the grinding of beverage raw materials into particles, the particles acquire static electricity, causing them to scatter as they fall, landing on the upper piston, the outside of the brewing cylinder, and the drive mechanism. After repeated use, this can cause the drive mechanism to jam or even seize, preventing the beverage from being brewed. Utility Model Content

[0004] The purpose of this invention is to provide a reliable brewing device.

[0005] Another objective of this invention is to provide a reliable beverage machine.

[0006] To achieve one of the above-mentioned objectives, this utility model provides a brewing device, comprising:

[0007] support;

[0008] A brewing cylinder is movably mounted on the support. The brewing cylinder is capable of forming a brewing chamber, which has a central axis and a filling opening for filling beverage particles.

[0009] An upper piston, which is movable relative to the brewing cylinder along the central axis, to selectively close the brewing chamber from above the filling opening;

[0010] The lower piston is engaged with the brewing cylinder, and the lower piston and the brewing cylinder are movable relative to each other along the central axis;

[0011] It also includes a particle channel disposed on the support, and the brewing cylinder has a first position and a second position relative to the support. In the first position, the filling opening is offset from the outlet position of the particle channel, and the brewing chamber corresponds to the position of the upper piston. In the second position, the filling opening corresponds to the outlet position of the particle channel, the brewing chamber is offset from the position of the upper piston, and the particle channel extends at least partially into the brewing chamber.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by extending the particle channel into the brewing chamber, the beverage particles are guided by the particle channel and fall directly into the bottom of the brewing chamber under their own gravity, and will not float outwards. This can significantly reduce the situation of beverage particles overflowing and contamination, and will not affect the operation of the brewing device due to beverage particles falling into other parts, thereby improving the overall operational stability of the brewing device and the quality of beverage brewing.

[0013] As a further improvement of one embodiment of the present invention, the particle channel includes an outlet end forming the outlet, the brewing cylinder has a movement path between the first position and the second position, the outlet end is located on the movement path, and during the movement of the brewing cylinder between the first position and the second position, the outlet end is driven by the brewing cylinder to move relative to the support to make way for the brewing cylinder.

[0014] As a further improvement of one embodiment of this utility model, the particle channel is configured in one of the following ways:

[0015] The outlet end deforms under the pressure of the brewing cylinder;

[0016] The outlet end is constructed of soft rubber material;

[0017] The particle channel is constructed of a soft rubber material;

[0018] The brewing cylinder contacts the outlet end to exert an external force on the outlet end, causing the outlet end to move relative to the support.

[0019] The particle channel also includes an inlet end, and the brewing cylinder contacts the outlet end to exert an external force on the outlet end, causing the outlet end to move relative to the inlet end;

[0020] The brewing cylinder contacts the outlet end to exert an external force on the outlet end, causing the particle channel to move relative to the support.

[0021] As a further improvement of one embodiment of the present invention, the bracket includes a first side plate and a second side plate spaced apart; between the first side plate and the second side plate, the lower piston moves relative to the brewing cylinder or the upper piston moves relative to the brewing cylinder; when the brewing cylinder is in the first position, the brewing cylinder is located between the first side plate and the second side plate; the second side plate is provided with a clearance opening, and the brewing cylinder rotates between the first position and the second position through the clearance opening.

[0022] As a further improvement of one embodiment of the present invention, the second side plate has an outer side away from the first side plate, and the particle channel is installed on the outer side.

[0023] As a further improvement of one embodiment of the present invention, a driving mechanism is also included. The driving mechanism includes a motor, a screw driven by the motor, and a spiral sleeve. The spiral sleeve is convexly connected to the screw. The brewing cylinder is fixed to the spiral sleeve. The screw is disposed between the first side plate and the second side plate. The first side plate and the second side plate restrict the brewing cylinder from rotating with the screw. Between the first position and the second position, the brewing cylinder rotates around the screw.

[0024] As a further improvement of one embodiment of the present invention, it also includes a slag scraper that can rotate relative to the brewing cylinder. The slag scraper includes a collar portion and a scraper portion. The collar portion is sleeved on the screw and is in clearance fit with the screw. The scraper portion abuts against the filling opening.

[0025] As a further improvement of one embodiment of the present invention, it also includes a slag scraper, which is fixed relative to the brewing tank along the central axis; an elastic element is connected between the slag scraper and the brewing tank, and the elastic element holds the slag scraper above the brewing tank.

[0026] The elastic element allows the brewing cylinder to move relative to the scraper between the first position and the second position.

[0027] As a further improvement of one embodiment of the present invention, the particle channel includes an inlet end and an outlet end arranged from top to bottom, forming a circumferentially closed inverted cone structure from the inlet end to the outlet end.

[0028] This utility model also provides a beverage machine, including the brewing device as described in any of the above embodiments. The beverage machine further includes a grinding device for generating the beverage particles, which are then conveyed to the brewing chamber through the particle channel. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of a brewing device according to one embodiment of the present invention, wherein the brewing cylinder is in the first position.

[0030] Figure 2 It is along Figure 1 Schematic diagram of the cross section along line AA.

[0031] Figure 3 yes Figure 1 The diagram shows the brewing device, with the brewing cylinder in the second position.

[0032] Figure 4 It is along Figure 3 Schematic diagram of the cross section of the middle BB line.

[0033] Figure 5 yes Figure 1 A schematic diagram of the brewing device, in which the first side panel is hidden. Detailed Implementation

[0034] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0035] It should be understood that terms such as “above,” “over,” “below,” and “under” used herein to indicate spatial relative position are for illustrative purposes to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms “spatial relative position” may be intended to include different orientations of the equipment in use or operation other than those shown in the figures.

[0036] The brewing device 100 in this specific embodiment of the present invention will be described as an example of a brewing device 100 capable of brewing coffee granules. (Refer to...) Figures 1 to 4 As shown, in this embodiment, the brewing device 100 includes a support 20 and a brewing cylinder 30. The brewing cylinder 30 is movably disposed on the support 20 and can form a brewing chamber 31. The brewing chamber 31 has a central axis Y and a filling opening 32 for filling beverage particles.

[0037] The support frame 20 supports and carries the other components of the brewing device 100, ensuring the relative positions of each component are stable and reliable. The brewing cylinder 30 is movably connected to the support frame 20 and forms a brewing chamber 31. The brewing chamber 31 extends along the central axis Y and has a filling opening 32 at its top for filling beverage particles. For example, the beverage particles can be coffee particles.

[0038] The brewing device 100 also includes an upper piston 41 and a lower piston 42. The upper piston 41 is movable relative to the brewing cylinder 30 along the central axis Y to selectively close the brewing chamber 31 above the filling opening 32. The lower piston 42 is engaged with the brewing cylinder 30, and the lower piston 42 is movable relative to the brewing cylinder 30 along the central axis Y.

[0039] To control the brewing process, the upper piston 41 is configured to move relative to the central axis Y of the brewing cylinder 30, selectively closing the filling opening 32. The relative movement between the upper piston 41 and the brewing cylinder 30 compacts the beverage particles in the brewing chamber 31, ensuring the formation of a uniform and dense cake, guaranteeing a balanced and consistent flavor extraction. It also allows for flexible adjustment of the volume of the brewing chamber 31 during brewing, thereby precisely controlling the extraction effect of the beverage particles. This relative movement can be the upper piston 41 moving alone relative to the support 20 along the central axis Y, or the brewing cylinder 30 moving alone relative to the support 20 along the central axis Y, or the upper piston 41 and the brewing cylinder 30 moving synchronously or sequentially relative to the support 20 along the central axis Y.

[0040] The lower piston 42 is connected inside the brewing cylinder 30. The lower piston 42 can also move relative to the brewing cylinder 30 along the central axis Y. This movement can push out the powder residue in the brewing chamber 31 from the filling opening 32, thus facilitating the next beverage preparation. It can also compact the beverage particles in the brewing chamber 31 or adjust the volume of the brewing chamber 31. This relative movement can be the lower piston 42 moving alone relative to the support 20 along the central axis Y, or the brewing cylinder 30 moving alone relative to the support 20 along the central axis Y, or the lower piston 42 and the brewing cylinder 30 moving synchronously or sequentially relative to the support 20 along the central axis Y.

[0041] The brewing device 100 also includes a particle channel 50, which is disposed on the support 20 and used to supply beverage particles to the brewing chamber 31. The brewing chamber 30 has a first position and a second position relative to the support 20. In the first position, such as... Figure 1 and Figure 2 As shown, the filling opening 32 is offset from the outlet position of the particle channel 50, and the brewing chamber 31 corresponds to the position of the upper piston 41; in the second position, as... Figure 3 and Figure 4 As shown, the filling opening 32 corresponds to the outlet position of the particle channel 50, the brewing chamber 31 is offset from the upper piston 41, and the particle channel 50 extends at least partially into the brewing chamber 31.

[0042] The brewing cylinder 30 switches between two positions: a first position and a second position. In the second position, the filling opening 32 corresponds to the outlet position of the particle channel 50, meaning the brewing cylinder 30 is in the beverage particle receiving position. This facilitates the receipt of beverage particles and subsequent beverage brewing, automating the entire beverage preparation process. When the brewing cylinder 30 is in the beverage particle receiving position, the extended design of the particle channel 50 allows the beverage particles to fall directly into the bottom of the brewing chamber 31 under the guidance of the particle channel 50 and their own gravity, preventing them from scattering outwards. This significantly reduces powder spillage and contamination, preventing powder from affecting the operation of the brewing device 100 due to falling onto other components, thus improving the overall operational stability of the brewing device 100 and the quality of the brewed beverage.

[0043] When the brewing cylinder 30 is in the second position, the filling opening 32 corresponds to the outlet position of the particle channel 50, and beverage particles enter the brewing chamber 31 through the particle channel 50. Then, the brewing cylinder 30 moves from the second position to the first position. In the first position, the brewing cylinder 30 corresponds to the position of the upper piston 41. At this time, the brewing cylinder 30 and the upper piston 41 can move relative to each other to compact the beverage particles in the brewing chamber 31, making the beverage particles more compact. The coordinated work of the brewing cylinder 30, the upper piston 41, and the lower piston 42 makes the brewing device 100 more efficient, stable, and precise in the automated beverage preparation process.

[0044] In one embodiment, the particle channel 50 includes an outlet end 51 forming an outlet, and the brewing cylinder 30 has a movement path between a first position and a second position, on which the outlet end 51 is located. When the brewing cylinder 30 moves between the first position and the second position, the outlet end 51 is driven by the brewing cylinder 30 to move relative to the support 20 to make way for the brewing cylinder 30, so that the outlet end 51 can smoothly extend into the brewing chamber 31.

[0045] The outlet end 51 can move under the drive of the brewing cylinder 30, which can effectively avoid interference or jamming with the brewing cylinder 30, and can smoothly extend into the brewing chamber 31 or smoothly separate from the brewing cylinder 30.

[0046] Reference Figure 4 The height H of the outlet end 51 of the particle channel 50 extending into the brewing chamber 31 is less than one-quarter of the overall height of the particle channel 50, and the height H of the outlet end 51 is less than one-quarter of the overall height of the brewing cylinder 30. By setting the height of the outlet end 51 of the particle channel 50 extending into the brewing chamber 31, the resistance to the movement of the outlet end 51 driven by the brewing cylinder 30 can be controlled within a certain range, ensuring smooth movement of the brewing cylinder 30 between the first and second positions.

[0047] Furthermore, the outlet end 51 is designed with a streamlined shape to reduce resistance generated during the movement of the brewing cylinder 30, thereby further optimizing the movement efficiency of the brewing cylinder 30.

[0048] In addition, the inner wall of the particle channel 50 is smoothed to reduce the friction of beverage particles in the particle channel 50 and ensure that the beverage particles can flow smoothly into the brewing chamber 31.

[0049] Specifically, the shape of the outlet end 51 matches that of the filling opening 32 to ensure that when the brewing tank 30 moves to the second position, the outlet end 51 can substantially close the filling opening 32 to prevent beverage particles from flying / overflowing during the filling process into the brewing chamber 31. Of course, the outlet end 51 and the filling opening 32 cannot be absolutely sealed. A small gap between the outlet end 51 and the filling opening 32 is required at least to meet the air pressure conditions so that the beverage particles can be smoothly filled into the brewing chamber 31.

[0050] In one embodiment, the outlet end 51 deforms under the pressure of the brewing cylinder 30. The deformation of the outlet end 51 can make way for the movement of the brewing cylinder 30, and the structure of the outlet end 51 is simple.

[0051] In one embodiment, the outlet end 51 is constructed of a soft rubber material, which allows the outlet end 51 to deform under stress during the movement of the brewing tank 30, thereby further improving the reliability and durability of the structure.

[0052] In one embodiment, the particle channel 50 is made of soft rubber and can be installed as a whole on the bracket 20. The structure is simple and the assembly is convenient.

[0053] For example, the software material can be high-temperature resistant silicone, specifically with a Shore hardness of 50A.

[0054] In one embodiment, the brewing cylinder 30 contacts the outlet end 51 to exert an external force on the outlet end 51, causing the outlet end 51 to move relative to the support 20. That is, the outlet end 51 can be constructed as a rigid component and has the ability to move or rotate relative to the support 20, thereby making way for the movement of the brewing cylinder 30.

[0055] Specifically, the movement or rotation of the outlet end 51 can be achieved through mechanical structures, springs or other elastic elements, electromagnetic devices, etc., to ensure that it can quickly return to its original position after the brewing cylinder 30 moves. This design not only improves the flexibility and adaptability of the brewing device, but also ensures the stability and reliability of the brewing process.

[0056] In one embodiment, the particle channel 50 further includes an inlet end 52, and the brewing cylinder 30 contacts the outlet end 51 to exert an external force on the outlet end 51, causing the outlet end 51 to move relative to the inlet end 52. The inlet end 52 and the outlet end 51 of the particle channel 50 can be movably connected, as long as the outlet end 51 moves relative to the inlet end 52, ensuring that the inlet end 52 can reliably cooperate with the mechanism that outputs beverage particles.

[0057] In one embodiment, the brewing cylinder 30 contacts the outlet end 51 to exert an external force on the outlet end 51, causing the particle channel 50 to move relative to the support 20. The entire particle channel 50 can be movably connected to the support 20, making the arrangement of the particle channel 50 more flexible and convenient for cooperation with the brewing cylinder 30.

[0058] In one embodiment, the support 20 specifically includes a first side plate 21 and a second side plate 22 spaced apart; between the first side plate 21 and the second side plate 22, the lower piston 42 moves relative to the brewing cylinder 30, or the upper piston 41 moves relative to the brewing cylinder 30. That is, the relative movement between the lower piston 42 and the brewing cylinder 30 occurs in the space between the first side plate 21 and the second side plate 22, or the relative movement between the upper piston 41 and the brewing cylinder 30 occurs in the space between the first side plate 21 and the second side plate 22. When the brewing cylinder 30 is in the first position, the brewing cylinder 30 is located between the first side plate 21 and the second side plate 22; the second side plate 22 is provided with a clearance opening 223, through which the brewing cylinder 30 rotates between the first position and the second position.

[0059] Specifically, the clearance opening 223 is located below the second side plate 22.

[0060] The first side plate 21 and the second side plate 22 define the relative movement space between the lower piston 42 and the brewing cylinder 30, or between the upper piston 41 and the brewing cylinder 30, allowing the opening 223 to provide space for the brewing cylinder 30 to rotate, enabling it to rotate smoothly between a first position and a second position. In the second position, the brewing cylinder 30 engages with the outlet end 51 of the particle channel 50, ensuring that beverage particles can smoothly enter the brewing cylinder 30 for brewing. When the brewing cylinder 30 rotates to the first position, it disengages from the outlet end 51 of the particle channel 50, facilitating subsequent beverage brewing and automatic cleaning after brewing. This design not only improves the flexibility and convenience of the brewing device 100 but also greatly enhances the user experience.

[0061] In one embodiment, the second side plate 22 has an outer side away from the first side plate 21, and the particle channel 50 is installed on this outer side. This results in a smaller rotation angle for the brewing cylinder 30 between the first and second positions, facilitating control and maintenance. Furthermore, the brewing cylinder 30 can rotate within a range of 90 degrees or less, occupying less space and making the brewing device 100 more compact, thus facilitating installation and use in limited spaces.

[0062] In one embodiment, the brewing cylinder 30 can be moved and rotated by the screw 62. The brewing device 100 also includes a drive mechanism, which includes a motor 61, a screw 62 driven by the motor 61, and a spiral sleeve 63. The spiral sleeve 63 is connected to the screw 62, and the brewing cylinder 30 is fixed to the spiral sleeve 63. The screw 62 is disposed between the first side plate 21 and the second side plate 22. The first side plate 21 and the second side plate 22 restrict the rotation of the brewing cylinder 30 with the screw 62, ensuring the accuracy of movement and the compactness of the structure. Between the first position and the second position, the brewing cylinder 30 rotates around the screw 62.

[0063] The screw 62 can be arranged vertically, and the spiral sleeve 63 is fixed to one side of the brewing cylinder 30. When the screw 62 is driven to rotate by the motor 61, the spiral sleeve 63 can move the brewing cylinder 30 along the screw 62 or rotate with the screw 62. When the brewing cylinder 30 is located between the first side plate 21 and the second side plate 22, the brewing cylinder 30 is restricted by the first side plate 21 and the second side plate 22 to rotate with the screw 62, so that it can move relative to the upper piston 41 along the screw 62 to realize multiple steps of beverage brewing; when the brewing cylinder 30 is between the first position and the second position, that is, at the corresponding clearance opening 223, the screw 62 can drive the brewing cylinder 30 to rotate together to realize the discharge of powder residue or the reception of beverage particles.

[0064] The brewing cylinder 30, through the cooperation of the spiral sleeve 63 and the screw 62, realizes the vertical movement and horizontal rotation of the brewing cylinder 30. The beverage brewing and the receiving of beverage particles by the brewing cylinder 30 can be realized by the screw 62 alone. The entire brewing device 100 has a compact structure, simple control, reduced cost, and improved stability and accuracy of the movement of the brewing cylinder 30.

[0065] In addition, to improve the automation level and user experience of the brewing device 100, the brewing device 100 may also include sensors and a control unit. The sensors are used to detect the position of the brewing cylinder 30 and transmit the detected signals to the control unit. Based on the received signals, the control unit controls the start, stop, and rotation direction of the motor 61, thereby precisely controlling the movement trajectory of the brewing cylinder 30 and the brewing process.

[0066] In one embodiment, the brewing device 100 further includes a scraper 35 that can rotate relative to the brewing cylinder 30. The scraper 35 includes a collar portion 351 and a scraper portion 352. The collar portion 351 is sleeved on the screw 62 and is in clearance fit with the screw 62. The scraper portion 352 abuts against the filling opening 32.

[0067] The scraper 35 rotates relative to the brewing tank 30, and the scraper part 352 can sweep along the filling opening 32, effectively improving the thoroughness of scraping. Additionally, a filter screen 325 is provided on the top of the lower piston 42. The lower piston 42 lifts the powder residue to be flush with the filling opening 32 of the brewing tank 30, allowing the scraper part 352 to sweep across the filter screen 325, achieving horizontal scraping and cleaner removal, preventing powder residue residue from remaining on the surface of the filter screen 325. Moreover, the upper surface of the filter screen 325 can be flat. A flat filter screen 325 allows for more even and thorough wetting of the powder cake formed from beverage granules, thereby improving the distribution and wetting effect of the powder cake.

[0068] In addition, the clearance fit design between the collar portion 351 of the scraper 35 and the screw 62, as well as the anti-rotation limit of the bracket 20 on the scraper 35, ensure that the scraper 35 remains stationary relative to the screw 62 when the screw 62 drives the brewing cylinder 30 to rotate. This ensures that the brewing cylinder 30 and the collar portion 351 can rotate relative to each other, so that the collar portion 351 can scrape off the powder residue.

[0069] Reference Figure 5 In one embodiment, the scraper 35 is fixed relative to the brewing tank 30 along the central axis Y direction. An elastic element 36 connects the scraper 35 and the brewing tank 30, holding the scraper 35 above the brewing tank 30. The elastic element 36 allows the brewing tank 30 to move relative to the scraper 35 between a first position and a second position.

[0070] The elastic element 36 is provided to maintain the relative position of the scraper 35 and the brewing tank 30 along the central axis Y direction. When the brewing tank 30 and the scraper 35 rotate relative to each other, it ensures that the scraper 35 can sweep along the edge of the brewing tank 30, and the scraping is more thorough.

[0071] In addition, the elastic element 36 also has a certain buffering effect, which can reduce the vibration and noise caused by friction and collision during the rotation of the brewing cylinder 30, thereby improving the overall stability and service life of the brewing device. At the same time, the design of the elastic element 36 also facilitates the disassembly and maintenance of the slag scraper 35 and the brewing cylinder 30, reducing the cost of use.

[0072] Specifically, the elastic element 36 can be made of elastic materials such as springs or rubber blocks, and its shape and size can be adjusted and optimized according to the actual structure and requirements of the brewing tank 30 and the slag scraper 35.

[0073] In one embodiment, the particle channel 50 includes an inlet end 52 and an outlet end 51 arranged from top to bottom, forming a circumferentially closed inverted cone structure from the inlet end 52 to the outlet end 51.

[0074] The particle channel 50 is designed as a circumferentially closed inverted cone structure, that is, the inlet end 52 of the particle channel 50 is wide and the outlet end 51 is narrow. The beverage particles flow naturally by gravity, which prevents the beverage particles from accumulating and clogging, and reduces the overflow during the conveying process. Moreover, with the extension of the outlet end 51, the beverage particles can accumulate in the middle of the bottom of the brewing chamber 31 so that a uniform and flat powder cake can be formed during subsequent pressing.

[0075] In summary, the innovative design of the brewing device 100, which extends into the brewing chamber 31 through the particle channel 50, effectively improves the efficiency, reliability, and ease of maintenance of beverage particle delivery, and can be widely applied in the beverage machine field.

[0076] This application also relates to a beverage machine, including the above-mentioned brewing device 100, and the beverage machine also includes a grinding device for generating beverage particles, which are conveyed to the brewing chamber 31 through the particle channel 50.

[0077] The beverage machine combines the brewing device 100 with the grinding device to form an automated integrated system of grinding, conveying and brewing, which significantly improves the automation level and brewing quality of the beverage machine.

[0078] The beverage machine mentioned above can be a coffee machine or other beverage brewing equipment, such as a tea machine or other beverage brewing device.

[0079] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0080] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A brewing device, comprising: support; A brewing cylinder is movably mounted on the support. The brewing cylinder is capable of forming a brewing chamber, which has a central axis and a filling opening for filling beverage particles. An upper piston, which is movable relative to the brewing cylinder along the central axis, to selectively close the brewing chamber from above the filling opening; The lower piston is engaged with the brewing cylinder, and the lower piston and the brewing cylinder are movable relative to each other along the central axis; The feature is that it further includes a particle channel disposed on the support, and the brewing cylinder has a first position and a second position relative to the support. In the first position, the filling opening is offset from the outlet position of the particle channel, and the brewing chamber corresponds to the position of the upper piston. In the second position, the filling opening corresponds to the outlet position of the particle channel, the brewing chamber is offset from the position of the upper piston, and the particle channel extends at least partially into the brewing chamber.

2. The brewing device according to claim 1, characterized in that, The particle channel includes an outlet end forming the outlet, the brewing cylinder has a movement path between the first position and the second position, the outlet end is located on the movement path, and during the movement of the brewing cylinder between the first position and the second position, the outlet end is driven by the brewing cylinder to move relative to the support to make way for the brewing cylinder.

3. The brewing device according to claim 2, characterized in that, The particle channel is configured in one of the following ways: The outlet end deforms under the pressure of the brewing cylinder; The outlet end is constructed of soft rubber material; The particle channel is constructed of a soft rubber material; The brewing cylinder contacts the outlet end to exert an external force on the outlet end, causing the outlet end to move relative to the support. The particle channel also includes an inlet end, and the brewing cylinder contacts the outlet end to exert an external force on the outlet end, causing the outlet end to move relative to the inlet end; The brewing cylinder contacts the outlet end to exert an external force on the outlet end, causing the particle channel to move relative to the support.

4. The brewing device according to claim 2 or 3, characterized in that, The support includes a first side plate and a second side plate spaced apart; between the first side plate and the second side plate, the lower piston moves relative to the brewing cylinder or the upper piston moves relative to the brewing cylinder; when the brewing cylinder is in the first position, the brewing cylinder is located between the first side plate and the second side plate; the second side plate is provided with a clearance opening, and the brewing cylinder rotates between the first position and the second position through the clearance opening.

5. The brewing device according to claim 4, characterized in that, The second side plate has an outer side away from the first side plate, and the particle channel is mounted on the outer side.

6. The brewing device according to claim 4, characterized in that, It also includes a drive mechanism, which includes a motor, a screw driven by the motor, and a spiral sleeve. The spiral sleeve is convexly connected to the screw. The brewing cylinder is fixed to the spiral sleeve. The screw is disposed between the first side plate and the second side plate. The first side plate and the second side plate restrict the brewing cylinder from rotating with the screw. Between the first position and the second position, the brewing cylinder rotates around the screw.

7. The brewing device according to claim 6, characterized in that, It also includes a slag scraper that can rotate relative to the brewing cylinder. The slag scraper includes a collar portion and a scraper portion. The collar portion is sleeved on the screw and is clearance-fitted with the screw. The scraper portion abuts against the filling opening.

8. The brewing device according to any one of claims 1-3, characterized in that, It also includes a slag scraper, which is fixed relative to the brewing tank along the central axis; an elastic element is connected between the slag scraper and the brewing tank, and the elastic element holds the slag scraper above the brewing tank; The elastic element allows the brewing cylinder to move relative to the scraper between the first position and the second position.

9. The brewing device according to any one of claims 1-3, characterized in that, The particle channel includes an inlet end and an outlet end arranged from top to bottom, forming a circumferentially closed inverted cone structure from the inlet end to the outlet end.

10. A beverage machine, characterized in that, The beverage machine includes a brewing device as described in any one of claims 1 to 9, and further includes a grinding device for generating the beverage particles, which are conveyed to the brewing chamber through the particle channel.

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