Extraction mechanism and fully automatic coffee machine

Abstract

This application relates to the field of beverage equipment technology, and discloses an extraction mechanism and a fully automatic coffee machine. The extraction mechanism includes a support, a baffle assembly, and a powder container assembly. The baffle assembly and the powder container assembly are movably mounted on the support. The powder container assembly has a first position for placing powder and a second position for brewing beverages. The powder container assembly includes a powder container cup and a push rod. A portion of the push rod is disposed inside the powder container cup, and a portion of the push rod extends beyond the powder container cup. The push rod can reciprocate within the powder container cup. When the powder container assembly moves from the second position to the first position, the end of the push rod away from the powder container cup abuts against the surface of the baffle assembly facing the powder container cup, and the push rod moves within the powder container cup to push out the brewed coffee cake. With the above structure, the extraction mechanism can quickly clean the coffee cake as the powder container assembly returns to the first position for placing powder after brewing, improving cleaning efficiency.

Description

Technical Field

[0001] This application relates to the field of beverage equipment technology, and in particular to an extraction mechanism and a fully automatic coffee machine. Background Technology

[0002] The extraction mechanism (brewing mechanism) is a crucial component of a fully automatic coffee machine. It primarily extracts and brews coffee grounds or capsules to create a coffee beverage. In existing fully automatic coffee machines on the market, after brewing, some or all of the coffee grounds remain in the powder container. This requires manual cleaning of the powder container after each brewing session, resulting in a poor user experience. Summary of the Invention

[0003] The main technical problem solved by the embodiments of this application is to provide an extraction mechanism and a fully automatic coffee machine that can quickly clean the coffee puck after brewing and as the powder container assembly returns to the first position for placing the powder, thereby improving cleaning efficiency.

[0004] To solve the above-mentioned technical problems, one technical solution adopted in this application embodiment is as follows: An extraction mechanism is provided, including a support, a baffle assembly, and a powder container assembly. The baffle assembly and the powder container assembly are movably disposed on the support. The powder container assembly has a first position for placing powder and a second position for brewing beverages. The powder container assembly includes a powder container cup and a push rod. A portion of the push rod is disposed inside the powder container cup, and a portion of the push rod extends beyond the powder container cup. The push rod can reciprocate within the powder container cup. When the powder container assembly moves from the first position to the second position, the push rod abuts against the side wall of the baffle and pushes the baffle assembly to move. When the powder container assembly moves to the second position, the push rod disengages from the side wall of the baffle assembly, the baffle assembly resets, and the push rod is positioned above the baffle assembly. When the powder container assembly moves from the second position to the first position, the end of the push rod away from the powder container cup abuts against the surface of the baffle assembly facing the powder container cup, and the push rod moves within the powder container cup to push out the brewed powder cake.

[0005] In some embodiments, the baffle assembly includes a sliding plate and a first elastic member, the sliding plate being movably disposed on the bracket, and the first elastic member connecting the sliding plate and the bracket; the sliding plate has a blocking position and a yielding position, the first elastic member driving the sliding plate to move toward the blocking position, and during the process of the powder hopper assembly moving from the first position to the second position, the push rod driving the sliding plate to move toward the yielding position.

[0006] In some embodiments, the bracket is provided with a first guide portion and the sliding plate is provided with a second guide portion, the first guide portion being connected to the second guide portion to allow the sliding plate to switch between the blocking position and the avoidance position.

[0007] In some embodiments, the first guide portion includes a first fixing member, the second guide portion includes a sliding groove, the first fixing member is located in the sliding groove, and the sliding plate is slidable relative to the first fixing member.

[0008] In some embodiments, the end of the sliding plate near the first position is provided with a transition portion, which is used to abut against the push rod.

[0009] In some embodiments, the push rod includes a rod body and a top plate, the top plate being disposed inside the powder hopper cup, one end of the rod body being connected to the top plate, and the other end of the rod body extending outside the powder hopper cup.

[0010] In some embodiments, the diameter of the top plate is equal to the inner diameter of the powder hopper cup.

[0011] In some embodiments, the powder container assembly further includes a second elastic member, which is sleeved on the rod and located outside the powder container cup, and abuts against the rod and the powder container cup respectively.

[0012] In some embodiments, the first elastic element and the second elastic element are springs.

[0013] To solve the above-mentioned technical problems, another technical solution adopted in the embodiments of this application is to provide a fully automatic coffee machine, including the above-mentioned extraction mechanism.

[0014] The extraction mechanism of this application embodiment includes a support, a baffle assembly, and a powder container assembly. The baffle assembly and the powder container assembly are movably disposed on the support. The powder container assembly has a first position for placing powder and a second position for brewing beverages. The powder container assembly includes a powder container cup and a push rod. A portion of the push rod is disposed inside the powder container cup, and a portion of the push rod extends beyond the powder container cup. The push rod can reciprocate within the powder container cup. When the powder container assembly moves from the first position to the second position, the push rod abuts against the side wall of the baffle and pushes the baffle assembly to move. When the powder container assembly moves to the second position, the push rod disengages from the side wall of the baffle assembly, the baffle assembly resets, and the push rod is positioned above the baffle assembly. When the powder container assembly moves from the second position to the first position, the baffle assembly abuts against the push rod, and the push rod moves within the powder container cup to push out the brewed powder cake. With the above structure, the extraction mechanism can quickly clean the powder cake as the powder container component returns to the first position for placing powder after brewing, thus improving cleaning efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the specific embodiments of this application, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is an exploded view of the extraction mechanism in an embodiment of this application;

[0017] Figure 2 This is a partial exploded view of the extraction mechanism in an embodiment of this application;

[0018] Figure 3 This is an exploded view of the support structure in the extraction mechanism of this application embodiment;

[0019] Figure 4 This is an exploded view of the brewing component in the extraction mechanism of this application embodiment;

[0020] Figure 5 This is an exploded view of the powder hopper assembly in the extraction mechanism of this application embodiment;

[0021] Figure 6 This is a cross-sectional view of the powder hopper assembly in the extraction mechanism of an embodiment of this application;

[0022] Figure 7 This is a schematic diagram of the extraction mechanism in an embodiment of this application;

[0023] Figure 8 The extraction mechanism in this embodiment of the application is along Figure 7 Sectional perspective of AA;

[0024] Figure 9 The extraction mechanism in this embodiment of the application is along Figure 7 A cross-section of AA, and a plan view of the powder hopper assembly in the first position;

[0025] Figure 10 The extraction mechanism in this embodiment of the application is along Figure 7 A cross-section of the middle AA section, and a plan view of the powder hopper assembly in the second position;

[0026] Figure 11 The extraction mechanism in this embodiment of the application is along Figure 7 A cross-section of the middle AA section, and a plan view with the powder hopper assembly in the middle position;

[0027] Figure 12 yes Figure 10 A cross-sectional view of the first and second fluid passage components in section B of the middle part;

[0028] Figure 13 yes Figure 10 A cross-sectional view of the second fluid passage component in section B after it has been separated from the first fluid passage component. Detailed Implementation

[0029] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items. Furthermore, technical features involved in the different embodiments of this application described below may be combined with each other as long as they do not conflict with each other.

[0031] Please see Figure 1 and Figure 2 The extraction mechanism 1 includes a support 10, a brewing component 20, a power component 30, a baffle assembly 40, a powder container assembly 50, and a scraper 60. The brewing component 20 is disposed in the support 10 and is used to brew beverages. The power component 30 is disposed on the support 10, and the powder container assembly 50 is movably disposed on the support 10, located below the brewing component 20. The power component 30 is connected to the powder container assembly 50 and is used to drive the powder container assembly 50 to perform L-shaped reciprocating motion relative to the support 10, thereby enabling the powder container assembly 50 to achieve horizontal and vertical translational motion.

[0032] When powder hopper assembly 50 needs to receive powder, it moves to the first position, at which point it and brewing assembly 20 are vertically offset to facilitate powder receiving. After receiving powder, powder hopper assembly 50 moves horizontally to directly below brewing assembly 20 (the middle position), then moves vertically upward to the second position, where it connects with brewing assembly 20. At this point, the powder in powder hopper assembly 50 can be brewed. After brewing, powder hopper assembly 50 first moves vertically downward to the middle position, separating from brewing assembly 20. Then, it moves horizontally back to the first position, and the powder hopper assembly 50 and brewing assembly 20 are vertically offset again, ready for the next powder receiving operation.

[0033] A baffle assembly 40 is mounted on the support 10 and located below the powder container assembly 50. During the vertical downward movement of the powder container assembly 50 after brewing, the baffle assembly 40 comes into contact with the powder container assembly 50, thereby pushing the brewed powder cake (powder residue) out of the powder container assembly 50. A scraper 60 is mounted on the support 10. The scraper 60 is used to scrape away the powder cake pushed out of the powder container assembly 50 as the powder container assembly 50 moves horizontally from the middle position to the first position, ensuring that the powder container assembly 50 is empty when it returns to the first position, preventing the previous powder cake from occupying the powder container assembly 50 and affecting the next powder intake.

[0034] To facilitate the reader's understanding of the inventive concept of this application, the entire brewing process is described below:

[0035] First position (e.g.) Figure 9 (As shown) is the position where the powder container assembly 50 receives powder. When the powder container assembly 50 is in the first position, the powder container assembly 50 and the brewing assembly 20 are offset in the vertical direction, so that the powder container assembly 50 can perform the powder receiving operation.

[0036] Second position (e.g.) Figure 7 or Figure 10(As shown) is the docking of the powder container assembly 50 and the brewing assembly 20, and the position where the powder container assembly 50 is used for brewing.

[0037] The middle position refers to the position where the powder container assembly 50 is located directly below the brewing assembly 20, and where the powder container assembly 50 is separated from the brewing assembly 20 (e.g., Figure 8 or Figure 11 As shown in the figure, the middle position is also the position where the movement direction of the powder hopper assembly 50 changes when the powder hopper assembly 50 moves between the first position and the second position.

[0038] The brewing process for the beverage is as follows: Please refer to [link / reference]. Figure 9 The powder container assembly 50 is initially located in the first position. When powdered ingredients for brewing beverages, such as coffee powder, are placed into the receiving cavity 511 of the powder container assembly 50, the power assembly 30 is activated. Driven by the power assembly 30, the powder container assembly 50 moves horizontally from the first position to the intermediate position along the first direction X. Please refer to [link to relevant documentation]. Figure 10 Next, the powder container assembly 50 is driven to move along the second direction Y to the second position. At this time, the powder container assembly 50 is connected to the brewing assembly 20, and the baffle assembly 40 abuts against the end of the push rod 52 in the powder container assembly 50 away from the brewing assembly 20. At this time, the powder in the powder container assembly 50 can be brewed to form a beverage. After brewing is completed, the power assembly 30 is driven in the reverse direction. Please refer to [link / reference]. Figure 11 This causes the powder hopper assembly 50 to move in the opposite direction of the second direction Y until it reaches the middle position, separating from the brewing assembly 20. At this point, because the baffle assembly 40 abuts against the end of the push rod 52 in the powder hopper assembly 50 away from the brewing assembly 20, the push rod 52 does not move downwards, and push rod 52 pushes the powder in the powder hopper assembly 50 out of the receiving cavity 511. After the powder hopper assembly 50 moves to the middle position in the opposite direction of the second direction Y, under the continued driving action of the power assembly 30, the powder hopper assembly 50 moves in the opposite direction of the first direction X. While the powder hopper assembly 50 moves in the opposite direction of the first direction X, the scraper 60 does not move in the first direction X, that is, the powder hopper assembly 50 and the scraper 60 generate relative movement. During the movement of the powder hopper assembly 50, the scraper 60 scrapes the powder off the top of the push rod 52. When the powder hopper assembly 50 moves to the first position in the opposite direction of the first direction X, the baffle assembly 40 and the push rod 52 disengage, the push rod 52 resets, the push rod 52 no longer occupies the receiving cavity 511, the receiving cavity 511 is in an empty state, and the receiving cavity 511 is used for the next powder receiving operation.

[0039] It should be noted that the first direction X and the second direction Y are approximately perpendicular. Horizontal translation refers to the direction of movement of the extraction mechanism 1 when it is placed on the support surface of the object, which is parallel to the support surface. Vertical translation refers to the direction of movement of the extraction mechanism 1 when it is placed on the support surface of the object, which is perpendicular to the support surface. For example, if the extraction mechanism 1 is placed on the ground, the first direction X is approximately parallel to the ground, and the second direction Y is approximately perpendicular to the ground.

[0040] It is understood that in some embodiments, when the powder hopper assembly 50 moves from the first position to the intermediate position, it may be a horizontal translation along the first direction X, or it may be an upward tilting movement. Similarly, when the powder hopper assembly 50 returns to the first position from the intermediate position, it may be a horizontal translation along the first direction X, or it may be a downward tilting movement.

[0041] For the aforementioned bracket 10, please refer to Figure 2 and Figure 3 The support 10 includes a first side plate 11 and a second side plate 12. The first side plate 11 and the second side plate 12 are arranged substantially parallel to each other and are fixedly connected. The brewing assembly 20, the baffle assembly 40, and the powder hopper assembly 50 are disposed between the first side plate 11 and the second side plate 12. The power assembly 30 is disposed on the outside of the first side plate 11 or the second side plate 12 to avoid the power assembly 30 occupying the space between the first side plate 11 and the second side plate 12.

[0042] The first side plate 11 is provided with a first track groove 111, which includes a first segment 1111 and a second segment 1112 that are connected. The first segment 1111 extends along the first direction X, and the second segment 1112 extends along the second direction Y. An inflection point is formed at the junction of the first segment 1111 and the second segment 1112, so that the first track groove 111 is approximately L-shaped. Please refer to the following: Figure 1 The powder hopper assembly 50 is provided with a protruding first fulcrum 561, which is inserted into the first track groove 111. Under the driving action of the power assembly 30, the powder hopper assembly 50 moves along the first track groove 111.

[0043] To ensure smoother movement on both sides of the powder hopper assembly 50, the second side plate 12 is provided with a second track groove 121. The second track groove 121 includes a connected third segment 1211 and a fourth segment 1212. The third segment 1211 extends along a first direction X, and the fourth segment 1212 extends along a second direction Y. An inflection point is formed at the junction of the third segment 1211 and the fourth segment 1212, thus making the second track groove 121 approximately L-shaped. Please refer to [further details omitted]. Figure 2The powder hopper assembly 50 is provided with a second fulcrum 562, wherein the first fulcrum 561 and the second fulcrum 562 are located on opposite sides of the powder hopper assembly 50, and the second fulcrum 562 is inserted into the second track groove 121. Under the driving action of the power assembly 30, the powder hopper assembly 50 moves along the second track groove 121.

[0044] To prevent the powder hopper assembly 50 from rotating during operation, at least two support points are provided on the same side of the powder hopper assembly 50 to effectively increase its stability. Please refer to the following: Figure 1 The powder hopper assembly 50 also includes a third support point 563, with the first support point 561 and the third support point 563 located on the same side of the powder hopper assembly 50. Correspondingly, the first side plate 11 also includes a third track groove 112, which includes a fifth segment 1121 and a sixth segment 1122 that are connected. The fifth segment 1121 extends along the first direction X, and the sixth segment 1122 extends along the second direction Y. An inflection point is formed at the junction of the fifth segment 1121 and the sixth segment 1122, making the third track groove 112 approximately L-shaped. The third support point 563 is inserted into the third track groove 112.

[0045] In some embodiments, please refer to the following: Figure 2 The powder hopper assembly 50 also has a fourth support point 564, with the second support point 562 and the fourth support point 564 located on the same side of the powder hopper assembly 50. Correspondingly, the second side plate 12 also has a fourth track groove 122, which includes a connected seventh segment 1221 and an eighth segment 1222, wherein the seventh segment 1221 extends along the first direction X, and the eighth segment 1222 extends along the second direction Y. An inflection point is formed at the junction of the seventh segment 1221 and the eighth segment 1222, so that the fourth track groove 122 is also approximately L-shaped, and the fourth support point 564 is inserted into the third track groove 112.

[0046] In some embodiments, the two L-shaped track grooves on the first side plate 11 and the second side plate 12 are arranged to intersect and overlap, which can effectively reduce the volume of the first side plate 11 and the second side plate 12, thereby reducing the overall volume of the extraction mechanism 1 and meeting the design requirements of equipment miniaturization.

[0047] As an example, please refer to Figure 3The first segment 1111 intersects and connects with the sixth segment 1122, allowing the third fulcrum 563 to cross the first segment 1111. During the movement of the powder hopper assembly 50, when the first fulcrum 561 moves to the point where the first segment 1111 and the sixth segment 1122 connect, the third fulcrum 563 is still within the fifth segment 1121. Therefore, the powder hopper assembly 50 can only continue moving along the first direction X and will not move along the second direction Y. Only when the first fulcrum 561 moves to the intersection of the first segment 1111 and the second segment 1112, and the third fulcrum 563 moves to the intersection of the fifth segment 1121 and the sixth segment 1122, can the powder hopper assembly 50 move along the second direction Y. Specifically, partially overlapping the first track groove 111 and the third track groove 112 can effectively reduce the volume of the first side plate 11 without affecting the movement of the powder hopper assembly 50.

[0048] In other embodiments, the depth of the first track groove 111 is different from the depth of the third track groove 112 along the thickness direction of the first side plate 11, which can solve the problem that the movement of the first fulcrum 561 and the third fulcrum 563 is affected.

[0049] Similarly, please refer to Figure 3 The third segment 1211 intersects and connects with the eighth segment 1222, allowing the fourth fulcrum 564 to cross the third segment 1211. The movement process of the second fulcrum 562 and the fourth fulcrum 564 of the powder hopper assembly 50 can be referred to the analysis of the first fulcrum 561 and the third fulcrum 563 described above, and will not be repeated here.

[0050] In some embodiments, in order to increase the smoothness of the movement of the first fulcrum 561, the second fulcrum 562, the third fulcrum 563 and the fourth fulcrum 564 in the corresponding track groove, pulleys or bearings may be installed at the four fulcrums, so that the movement between the four fulcrums and the first side plate 11 and the second side plate 12 changes from relative sliding to relative rolling, thereby reducing the friction of the powder hopper assembly 50 when it moves on the first side plate 11 and the second side plate 12.

[0051] In some embodiments, please continue reading Figure 3 The bracket 10 also includes a base plate 13, which is disposed at the bottom of the first side plate 11 and the second side plate 12. One end of the base plate 13 is connected to the first side plate 11, and the other end of the base plate 13 is connected to the second side plate 12. The first side plate 11 and the second side plate 12 connected by the base plate 13 can enhance the strength and rigidity of the bracket 10 and improve the stability of the bracket 10.

[0052] For the brewing component 20 mentioned above, please refer to... Figure 4 and Figure 8The brewing assembly 20 is located above the powder container assembly 50. The brewing assembly 20 includes a brewing connector 21 and a filter element 22. The brewing connector 21 is positioned between the first side plate 11 and the second side plate 12, and is connected to an external pipeline. The brewing connector 21 is used to transport the brewed beverage to the output beverage end of the extraction mechanism 1. The filter element 22 is located at the end of the brewing connector 21 near the bottom plate 13. When the brewing assembly 20 connects with the powder container assembly 50 and brews, the filter element 22 blocks any solid powder in the powder container assembly 50, preventing solid powder from entering the brewing connector 21 during brewing and clogging it. It also prevents the beverage from containing a large amount of solid powder, which could affect the taste.

[0053] In some embodiments, please refer to Figure 4 The brewing assembly 20 also includes a fourth seal 23, which is disposed on the outer periphery of the brewing connector 21, such as... Figure 10 As shown, when the brewing connector 21 is inserted into the powder container assembly 50, the fourth seal 23 is used to seal the gap between the brewing connector 21 and the powder container assembly 50 to prevent brewing liquid leakage.

[0054] For the aforementioned power assembly 30, please refer again. Figure 1 The power assembly 30 includes a motor 31 and a connecting rod (not shown). The motor 31 is located on the outside of the first side plate 11 or the second side plate 12 to avoid occupying the space between the first side plate 11 and the second side plate 12. The connecting rod is located between the first side plate 11 and the second side plate 12, and is connected to the motor 31 and the powder hopper assembly 50 respectively, so that the motor 31 can drive the powder hopper assembly 50 to perform L-shaped reciprocating motion along the first track groove 111 and the second track groove 121.

[0055] In some embodiments, the linkage component includes a first linkage 32 and a second linkage 33. The first end of the first linkage 32 is connected to the output shaft of the motor 31, and the motor 31 drives the first linkage 32 to rotate. The first end of the second linkage 33 is rotatably connected to the second end of the first linkage 32, and the second end of the second linkage 33 is rotatably connected to the powder hopper assembly 50. When the first linkage 32 rotates, it drives the second linkage 33 to move. Under the guidance of the L-shaped track grooves (first track groove 111 and second track groove 121) of the bracket 10, the powder hopper assembly 50 performs reciprocating motion along an L-shaped track. When the motor 31 rotates forward, the powder hopper assembly 50 moves from the first position through the intermediate position to the second position; when the motor 31 rotates in reverse, the powder hopper assembly 50 moves from the second position through the intermediate position to the first position.

[0056] It is worth noting that during the L-shaped reciprocating motion of the powder hopper assembly 50 relative to the support 10, the powder hopper assembly 50 maintains a translational motion relative to the support 10, and the hopper opening of the powder hopper assembly 50 always faces upwards. In traditional structures, the powder hopper assembly 50 performs an arc-shaped swing arm motion relative to the support 10, meaning the powder hopper assembly 50 is tilted, and the hopper opening does not remain facing upwards, which can easily lead to powder spillage during movement. Setting the powder hopper assembly 50 to an L-shaped translational motion effectively solves the problem of powder spillage during movement.

[0057] For the baffle assembly 40 described above, please refer to... Figure 1 and Figure 2 The baffle assembly 40 is movably mounted on the base plate 13, which has a clearance groove 131 extending along a first direction X. The baffle assembly 40 covers the clearance groove 131. When the powder hopper assembly 50 moves from the first position to the intermediate position, the push rod 52 in the powder hopper assembly 50 moves along the clearance groove 131 and abuts against the side wall of the baffle assembly 40, pushing the baffle assembly 40 away from the clearance groove 131. When the powder hopper assembly 50 moves upward from the intermediate position to the second position, the push rod 52 in the powder hopper assembly 50 separates from the side wall of the baffle assembly 40, the baffle assembly 40 resets, and the clearance groove 131 is re-covered. The baffle assembly 40 is now located directly below the push rod 52. As the powder container assembly 50 moves from the second position to the middle position, the baffle assembly 40 abuts against the end of the push rod 52 in the powder container assembly 50 away from the brewing assembly 20, preventing the push rod 52 from falling. As the powder container assembly 50 moves from the middle position to the first position, the end of the push rod 52 in the powder container assembly 50 away from the brewing assembly 20 slides off the baffle assembly 40, and the push rod 52 resets.

[0058] As an example, the baffle assembly 40 includes a sliding plate 41 and a first elastic member 42. The sliding plate 41 is movably disposed on the base plate 13 along the third direction Z. One end of the first elastic member 42 is connected to the sliding plate 41, and the other end of the first elastic member 42 is connected to the base plate 13 or a first side plate 11. The sliding plate 41 has a blocking position and a clearance position relative to the base plate 13. When the sliding plate 41 is in the blocking position, the sliding plate 41 covers the clearance groove 131 on the base plate 13. When the sliding plate 41 is in the clearance position, the sliding plate 41 opens the clearance groove 131 on the base plate 13. The first elastic member 42 provides elastic force to the sliding plate 41 to drive the sliding plate 41 to move towards the blocking position and hold it in the blocking position.

[0059] As an example, the first elastic element 42 is a spring. The third direction Z is perpendicular to the plane containing the first direction X and the second direction Y. Of course, in other embodiments, the sliding plate 41 can slide back and forth relative to the base plate 13 in the first direction X to open or cover the clearance groove 131 on the base plate 13.

[0060] In some embodiments, the base plate 13 is provided with a first guide portion and the sliding plate 41 is provided with a second guide portion. The first guide portion and the second guide portion cooperate to provide a guiding function for the sliding plate 41, so that the sliding plate 41 can switch between the blocking position and the avoidance position along the third direction Z.

[0061] As an example, the first guide portion includes a first fixing member 132, and the second guide portion is a sliding groove 411. The first fixing member 132 is fixed to the base plate 13 and is inserted into the sliding groove 411. Under the guiding action of the sliding groove 411, the sliding plate 41 can slide relative to the first fixing member 132.

[0062] In other examples, the first guide portion may be a guide rail, and the second guide portion may be a protrusion that mates with the guide rail, the protrusion being inserted into the guide rail so that the sliding plate 41 slides relative to the base plate 13 in the third direction Z.

[0063] In some embodiments, please refer to Figure 1 The sliding plate 41 is provided with a transition portion 412 at one end near the opening of the clearance groove 131. That is, the end of the sliding plate 41 near the first position of the powder hopper assembly 50 is provided with a transition portion 412. The transition portion 412 is used to abut against the powder hopper assembly 50 so that when the powder hopper assembly 50 moves from the first position to the middle position, the powder hopper assembly 50 first abuts against the transition portion 412, so as to better push the sliding plate 41 to the clearance position.

[0064] For the powder hopper component 50 mentioned above, please refer to... Figure 5 and Figure 6 The powder container assembly 50 includes a powder container cup 51 and a push rod 52. The powder container cup 51 is connected to the second end of the second connecting rod 33 and is movably disposed between the first side plate 11 and the second side plate 12. The powder container cup 51 is used to store powder to be brewed. Part of the push rod 52 is disposed inside the powder container cup 51, and part of the push rod 52 extends out of the powder container cup 51 from the bottom or side. The push rod 52 can reciprocate along the second direction Y inside the powder container cup 51 to push the brewed powder cake out of the powder container cup 51 and to reset the push rod 52.

[0065] When the powder container assembly 50 moves from the first position to the middle position, the push rod 52 abuts against the side wall of the baffle assembly 40 and pushes the baffle assembly 40 to move. When the powder container assembly 50 reaches the second position, the baffle assembly 40 is located below the end of the push rod 52 away from the brewing assembly 20, and the baffle assembly 40 resets. When the powder container cup 51 moves from the second position to the middle position, the baffle assembly 40 abuts against the end of the push rod 52 away from the brewing assembly 20, preventing the push rod 52 from moving downward, and the push rod 52 pushes out the powder compact in the powder container cup 51.

[0066] As an example, the powder container 51 has a receiving cavity 511, and the top of the powder container 51 has a hopper opening communicating with the receiving cavity 511. The receiving cavity 511 is used to store powder to be brewed. The push rod 52 includes a rod body 521 and a top plate 522. The top plate 522 is disposed in the receiving cavity 511. A first end of the rod body 521 is connected to the top plate 522, and a second end of the rod body 521 protrudes from the bottom of the powder container 51. The rod body 521 can move relative to the powder container 51, thereby pushing the top plate 522 to move within the receiving cavity 511.

[0067] When the power assembly 30 drives the powder hopper cup 51 to move from the first position to the second position, the rod 521 in the push rod 52 first abuts against the transition part 412 of the sliding plate 41. As the powder hopper cup 51 continues to move, the rod 521 pushes the sliding plate 41 in the baffle assembly 40 to move towards the avoidance position. When the powder hopper assembly 50 moves to the second position, the second end of the rod 521 does not abut against the sliding plate 41 in the first direction X or the third direction Z. Instead, the second end of the rod 521 does not abut against the sliding plate 41 in the second direction Y, or they just abut against each other. Figure 7 As shown, under the action of the first elastic member 42, the sliding plate 41 moves from the avoidance position to the blocking position; when the powder container assembly 50 moves from the second position to the first position, the sliding plate 41 in the baffle assembly 40 abuts against the second end of the rod 521 in the second direction Y. The rod 521 is stationary relative to the sliding plate 41. As the powder container cup 51 continues to move downward, the rod 521 drives the top plate 522 to move in the receiving cavity 511, thereby pushing the powder compact out of the receiving cavity 511, as shown. Figure 8 As shown.

[0068] In some embodiments, please refer to Figure 6 The diameter of the top plate 522 is equal to the inner diameter of the receiving cavity 511 of the powder hopper cup 51, that is, the push rod 52 and the powder hopper cup 51 form a piston structure.

[0069] In some embodiments, please refer to Figure 5 and Figure 6The powder container assembly 50 also includes a second elastic element 53, which is located outside the powder container cup 51. The second elastic element 53 is sleeved on the rod body 521, and its two ends respectively abut against the second end of the rod body 521 and the bottom of the powder container cup 51. The second elastic element 53 provides elastic force so that the rod body 521 drives the top plate 522 to move towards the bottom of the receiving cavity 511. As an example, the second elastic element 53 is a spring.

[0070] In some embodiments, please refer to Figure 5 and Figure 6 The powder container assembly 50 also includes a first sealing element 54, which is disposed at the bottom of the powder container cup 51. The first sealing element 54 abuts against the rod body 521, thereby sealing the gap between the rod body 521 and the powder container cup 51 and preventing the liquid in the receiving cavity 511 from flowing out from the gap between the powder container cup 51 and the rod body 521 during the brewing process.

[0071] In some embodiments, please refer to Figure 5 and Figure 6 The powder hopper assembly 50 also includes a third elastic element 55, which is located on the side of the top plate 522 near the bottom of the receiving cavity 511. The first end of the third elastic element 55 is connected to the powder hopper cup 51, and the opposite second end of the third elastic element 55 abuts against the top plate 522. The third elastic element 55 is used to provide elasticity so that the top plate 522 moves toward the hopper opening. Thus, after the powder hopper assembly 50 is connected to the brewing assembly 20, regardless of the amount of powder, the top plate 522 can always press the powder between the top plate 522 and the brewing assembly 20 under the elastic force of the third elastic element 55, thereby facilitating the extraction of the pressed powder by the high-temperature and high-pressure hot water.

[0072] As an example, after the coffee powder container assembly 50 is connected to the brewing assembly 20, the brewing connector 21 enters the receiving cavity 511 of the coffee powder container 51, and the relative position of the brewing connector 21 and the coffee powder container 51 is fixed. The third elastic element 55 is used to adjust the distance between the top plate 522 and the filter element 22, thereby changing the space between the top plate 522 and the filter element 22. Specifically, when there is more coffee powder, the distance between the top plate 522 and the filter element 22 is larger, and when there is less coffee powder, the distance between the top plate 522 and the filter element 22 is smaller. However, regardless of the amount of coffee powder, under the action of the third elastic element 55, the top plate 522 can always press the coffee powder between the filter elements 22, that is, the top plate 522 provides pressure to press the coffee powder, thereby achieving extraction. As an example, the receiving cavity 511 can hold 5-20 grams of coffee powder.

[0073] Understandably, coffee powder needs to be compacted during brewing to achieve extraction. Without the third elastic element 55, the distance between the top plate 522 and the filter element 22 remains constant after the powder container assembly 50 is connected to the brewing assembly 20. When a small amount of powder is between the top plate 522 and the filter element 22, the top plate 522 cannot compact the powder, leaving it loose. In this case, introducing hot water merely "washes" the powder instead of extracting it, significantly reducing the taste of the beverage. By incorporating the third elastic element 55, the distance between the top plate 522 and the filter element 22 can be adjusted, ensuring that the top plate 522 consistently compacts the powder regardless of the amount added. This facilitates extraction by the high-temperature, high-pressure hot water.

[0074] In some embodiments, please refer to Figure 5 and Figure 6 The powder hopper assembly 50 also includes a mounting frame 56, with the powder hopper cup 51 fitted inside the mounting frame 56. The second end of the second connecting rod 33 is connected to the mounting frame 56. The second connecting rod 33 drives the mounting frame 56 and the powder hopper cup 51 to move synchronously. One side of the mounting frame 56 is provided with the aforementioned first fulcrum 561 and third fulcrum 563, as shown above. Figure 1 As shown, the other side of the mounting bracket 56 is provided with the aforementioned second support point 562 and fourth support point 564 (as shown). Figure 2 (As shown).

[0075] For the scraper 60 mentioned above, please refer to... Figure 3 The scraper 60 is provided with a first protrusion 61. The first side plate 11 and / or the second side plate 12 of the bracket 10 are provided with a first track groove 113 along the second direction Y. The first protrusion 61 is inserted into the first track groove 113. The first protrusion 61 reciprocates in the first track groove 113 so that the scraper 60 can reciprocate relative to the first side plate 11 and the second side plate 12 in the second direction Y. However, the scraper 60 is not allowed to move along the first direction X.

[0076] In some embodiments, please refer to Figure 3 The mounting bracket 56 in the powder hopper assembly 50 has a second track groove 565 on its side along the first direction X. The scraper 60 has a second protrusion 62, which is inserted into the second track groove 565. The second protrusion 62 reciprocates in the second track groove 565, so that the scraper 60 and the powder hopper assembly 50 move synchronously in the second direction Y, and the powder hopper assembly 50 can also reciprocate relative to the scraper 60 in the first direction X.

[0077] During the movement of the mounting bracket 56 and powder hopper cup 51 from the first position to the middle position, the second protrusion 62 slides in the second track groove 565. At this time, because the rod 521 pushes the sliding plate 41 to move towards the clearance position, the rod 521 can move in the clearance groove 131. Therefore, the top plate 522 does not push out the powder in the receiving cavity 511. When the mounting bracket 56 and powder hopper cup 51 are in the middle position, the scraper 60 is outside the edge of the hopper opening of the powder hopper cup 51 (e.g., Figure 8 As shown), during the movement of the mounting bracket 56 and the powder hopper cup 51 from the middle position to the second position, the first protrusion 61 slides in the first track groove 113, causing the scraper 60 and the powder hopper assembly 50 to move together along the second direction Y to the second position (as shown). Figure 7 (As shown).

[0078] After brewing, please refer to Figure 8 The scraper 60 and powder container assembly 50 move in the opposite direction of the second direction Y, i.e., downwards. Since the second end of the rod 521 abuts against the sliding plate 41, as the mounting bracket 56 and powder container cup 51 continue to move, the rod 521 pushes the top plate 522 to gradually push the powder compact out of the receiving cavity 511 until the powder container cup 51 is in the middle position, at which point the scraper 60 is still outside the edge of the container opening. During the movement of the mounting bracket 56 and powder container cup 51 from the middle position to the first position, the powder container cup 51 moves relative to the scraper 60, and the scraper 60 scrapes away the powder compact pushed out by the top plate 522 until the mounting bracket 56 and powder container cup 51 are in the first position (e.g., ...). Figure 9 As shown), at this time, the second end of the rod 521 does not abut against the sliding plate 41 in the second direction Y. Under the action of the second elastic member 53, the rod 521 and the top plate 522 move downward, and the space of the receiving cavity 511 is restored, so as to facilitate the next feeding of powder.

[0079] In this application, the movement trajectory of the powder hopper assembly 50 is set to an L-shaped trajectory. On the one hand, this ensures that the opening of the powder hopper assembly 50 always faces upward, preventing powder from spilling out during movement. On the other hand, the L-shaped movement trajectory includes a vertical movement segment, i.e., the movement from the second position to the middle position. During this process, through cooperation with the baffle assembly 40, the push rod 52 can push the powder cake out of the receiving cavity 511 (e.g., ...). Figure 8 (as shown); furthermore, it utilizes the fact that there is a horizontal movement process in the L-shaped trajectory, that is, the movement process from the middle position to the first position (from...). Figure 8 The state shown moves to Figure 9 (as shown in the diagram) During this process, the powder compact pushed out by the top plate 522 can be scraped away by the scraper 60. Through the above structure, the powder container assembly 50 can clean up the powder compact while returning to the first position after brewing, which greatly improves the cleaning efficiency.

[0080] In some embodiments, please refer to Figure 5 The extraction mechanism 1 also includes a guide plate 70, which is connected to the mounting bracket 56 or the side of the powder container cup 51 opposite to the first position in the powder container assembly 50. The guide plate 70 moves synchronously with the powder container assembly 50. The guide plate 70 is used to guide the powder cake scraped off by the scraper 60 to the outside, preventing the powder cake from scattering inside the extraction mechanism 1 after being scraped off by the scraper 60. In some embodiments, baffles 71 are provided on both sides of the guide plate 70 to prevent the scraped powder residue from scattering inside the extraction mechanism 1 during the movement. It is understood that the guide plate 70 and the mounting bracket 56 can be independent parts that are spliced ​​together to form a whole, or the guide plate 70 and the mounting bracket 56 can be manufactured as a single piece.

[0081] In some embodiments, the extraction assembly further includes a liquid path assembly for supplying high-temperature, high-pressure hot water for brewing beverages to the powder container assembly 50 and the brewing assembly 20. See also Figure 1 The liquid circuit assembly includes a first liquid circuit component 81 and a second liquid circuit component 82. The first liquid circuit component 81 is mounted on the bracket 10, and the second liquid circuit component 82 is mounted on the powder container assembly 50 and moves synchronously with the powder container assembly 50. When the powder container assembly 50 is in the second position, the first liquid circuit component 81 and the second liquid circuit component 82 are connected and fluidly communicated. At this time, hot water enters the receiving cavity of the powder container assembly 50 through the first liquid circuit component 81 and the second liquid circuit component 82. When the powder container assembly 50 is not in the second position, the first liquid circuit component 81 and the second liquid circuit component 82 are separated, and the second liquid circuit component 82 is in communication with the outside air. The second liquid circuit component 82 is used to enable the powder container assembly 50 to achieve air intake or exhaust, so as to avoid a negative pressure state in the receiving cavity 511, which would affect the docking or separation of the powder container assembly 50 and the brewing assembly 20.

[0082] As an example, please refer to Figure 12 The first liquid circuit component 81 includes a first connector 811 and a second seal 812. The first connector 811 is fixed to the first side plate 11 or the second side plate 12 and is used to connect with an external liquid supply pipeline. The second seal 812 is sleeved on the first connector 811 and is used to seal the gap between the first connector 811 and the second liquid circuit component 82 after they are connected, so as to prevent liquid leakage at the gap between them.

[0083] The first connector 811 is provided with a first liquid outlet 8111, which is used to allow liquid to flow out of the first connector 811. The first liquid passage component 81 also includes a third seal 813, which is sleeved on the first connector 811. The second seal 812 and the third seal 813 are respectively located on both sides of the first liquid outlet 8111 in the axial direction. The third seal 813 is used to seal the gap between the first connector 811 and the second liquid passage component 82.

[0084] Please see Figure 8 The second liquid path component 82 includes a second connector 821, which is fixedly mounted on the outer wall of the powder hopper cup 51 or the mounting bracket 56. (See also...) Figure 13 The second connector 821 is provided with a insertion cavity 8211 and a connecting channel 8212, wherein the connecting channel 8212 fluidly connects the insertion cavity 8211 and the receiving cavity 511 inside the powder hopper assembly 50. The insertion cavity 8211 is used for the insertion of the first connector 811. When the first connector 811 is inserted into the insertion cavity 8211 of the second connector 821, the first liquid outlet 8111 is fluidly connected to the connecting channel 8212, thereby allowing liquid to enter the receiving cavity 511.

[0085] In some embodiments, please refer to Figure 13 The bottom of the second connector 821 is also provided with an air hole 8213. The air hole 8213 connects the bottom of the insertion cavity 8211 with the outside air. The air hole 8213 is used to allow outside gas to enter the receiving cavity 511 through the connecting channel 8212, or to allow gas in the receiving cavity 511 to be discharged to the outside through the connecting channel 8212.

[0086] In some embodiments, please refer to Figure 6 The top plate 522 is provided with a plurality of through holes 5221, and the plurality of through holes 5221 penetrate the top plate 522 along the thickness direction of the top plate 522, so that the upper part and the lower part of the receiving cavity 511 of the top plate 522 are in fluid communication. As an example, the connecting channel 8212 is in fluid communication with the side wall of the powder hopper cup 51 near the bottom, so that liquid flows in from the bottom of the receiving cavity 511 and brews the powder in the second direction Y.

[0087] In some embodiments, the diameter of the through hole 5221 gradually increases along the direction from the opening of the receiving cavity 511 toward the bottom of the cavity 511, and the cross-section of the through hole 5221 is approximately conical or trumpet-shaped. By providing a conical or trumpet-shaped through hole 5221 on the top plate 522, on the one hand, it can prevent the powder from falling directly to the bottom of the cavity due to an excessively large diameter of the through hole 5221, thus affecting the brewing process; on the other hand, it can increase the pressure of the liquid flowing from the bottom of the cavity along the second direction Y during the brewing process, thereby improving the brewing effect. For example, the powder can better maintain the taste of the beverage when brewed under high temperature and high pressure hot water.

[0088] Please see Figure 10 and Figure 12 The working process of the first liquid circuit component 81 and the second liquid circuit component 82 when supplying hot water is as follows: When the powder tank assembly 50 is in the second position, the powder tank assembly 50 is connected to the brewing assembly 20, and the first connector 811 is inserted into the insertion cavity 8211 of the second connector 821 (e.g., Figure 12 As shown), and under the sealing action of the second seal 812 and the third seal 813, the connecting channel 8212 connects the first liquid outlet 8111 with the receiving cavity 511. Hot water from the outside flows from the first liquid outlet 8111 of the first connector 811 to the connecting channel 8212, and enters the receiving cavity 511 through the connecting channel 8212. Under the adsorption action of the brewing component 20, the hot water extracts and brews the powder along the second direction Y. The brewed liquid is guided to the outside through the brewing connector 21.

[0089] The venting process of the second liquid passage component 82 is as follows: During the movement of the powder hopper assembly 50 from the middle position to the second position, when the powder hopper assembly 50 is just docked with the brewing component 20, under the action of the fourth seal 23, the receiving cavity 511 of the powder hopper assembly 50 is only connected to the outside air through the connecting channel 8212. At this time, the first liquid passage component 81 and the second liquid passage component 82 are in a separated state. As the powder hopper assembly 50 continues to move upward, the gas in the receiving cavity 511 is discharged to the outside through the connecting channel 8212, the insertion cavity 8211, and the vent 8213. As the powder hopper assembly 50 continues to move upward, causing the first liquid path component 81 to begin docking with the second liquid path component 82, the first connector 811 and the second seal 812 seal the top of the insertion cavity 8211 of the second connector 821. Therefore, the gas in the accommodating cavity 511 is discharged downward to the outside through the connecting channel 8212 and the air hole 8213 until the powder hopper assembly 50 moves to the second position, at which point the first connector 811 and the second connector 821 are inserted into place, the second seal 812 seals the insertion cavity 8211, and the third seal 813 seals the air hole 8213.

[0090] The air intake process of the second liquid passage component 82 is as follows: After brewing, the powder container assembly 50 begins to move downwards, and the first liquid passage component 81 separates from the second liquid passage component 82. At this time, the first connector 811 and the second seal 812 still seal the top of the insertion cavity 8211, but the third seal 813 no longer seals the air hole 8213, so that the receiving cavity 511 can be connected to the outside air again. Under the blocking action of the baffle assembly 40, the push rod 52 moves relative to the powder container cup 51, making the space under the top plate 522 larger and larger, and the outside air passes through the air hole 8213. The connecting channel 8212 enters the receiving cavity 511, making the air pressure in the receiving cavity 511 equal to the external atmospheric pressure, thus preventing negative pressure from appearing in the area below the top plate 522, which would make it difficult for the top plate 522 and the powder hopper cup 51 to move. As the powder hopper cup 51 continues to move downward, the first connector 811 and the second connector 821 completely separate, and the first connector 811 and the second seal 812 no longer seal the top of the insertion cavity 8211. At this time, external air can simultaneously enter the receiving cavity 511 from the top of the insertion cavity 8211 and the air hole 8213 through the connecting channel 8212.

[0091] In this application, the liquid circuit assembly is configured as a separate first liquid circuit component 81 and a second liquid circuit component 82, and the first liquid circuit component 81 and the second liquid circuit component 82 are positioned in different locations. This allows the first liquid circuit component 81 and the second liquid circuit component 82 to communicate and supply water when hot water needs to be supplied to the powder container assembly 50, i.e., when the powder container assembly 50 is in the second position and connected to the brewing assembly 20. When hot water is not needed to be supplied to the powder container assembly 50, the first liquid circuit component 81 and the second liquid circuit component 82 are disconnected due to the powder container assembly 50. The powder container assembly 50 automatically separates due to its movement, allowing the interior of the powder container assembly 50 to directly communicate with the outside air. When the powder container assembly 50 is connected to the brewing assembly 20, it can promptly exhaust the air, preventing the gas in the receiving cavity 511 of the powder container assembly 50 from being compressed into high-pressure gas, which would increase the difficulty of connecting the powder container assembly 50 and the brewing assembly 20. When the powder container assembly 50 is separated from the brewing assembly 20, it can promptly introduce air, preventing negative pressure from occurring in the receiving cavity 511 of the powder container assembly 50, which would increase the difficulty of separating the powder container assembly 50 and the brewing assembly 20.

[0092] The extraction mechanism 1 in this embodiment includes a support 10, a brewing component 20, a power component 30, a powder hopper component 50, a baffle component 40, and a scraper 60. The brewing component 20 is mounted on the support 10 and positioned above the powder hopper component 50. The power component 30 and the powder hopper component 50 are mounted on the support 10 and connected to the powder hopper component 50. The power component 30 drives the powder hopper component 50 to move in an L-shaped trajectory relative to the support 10. When the powder hopper component 50 needs to collect powder, it moves to a first position. At this time, the powder hopper component 50 and the brewing component 20 are vertically offset. After collecting the powder, the powder hopper component 50 moves horizontally to the brewing position. Directly below component 20, it moves vertically upward to the second position, where the powder hopper component 50 and the brewing component 20 are connected. At this point, the powder in the powder hopper component 50 can be brewed. After brewing, the powder hopper component 50 moves vertically downward, separating from the brewing component 20. Then, the powder hopper component 50 moves horizontally to the first position, where it is vertically offset from the brewing component 20. The powder hopper component 50 can then be used for the next powder receiving operation. Meanwhile, the baffle component 40 is located below the powder hopper component 50. During the vertical downward movement of the powder hopper component 50, it comes into contact with the powder hopper component 50, pushing the brewed powder cake (powder residue) out of the powder hopper component 50. The scraper 60 is used to horizontally move the powder container assembly 50 to the first position and scrape away the powder compact from the ejected powder container assembly 5, so that the powder container assembly 50 returns to the first position in an empty state, so as to prevent the previous powder compact from occupying the powder container assembly 50 and affecting the next powder receiving of the powder container assembly 50.

[0093] By setting the powder hopper assembly 50 to move in an L-shape through the power component 30, the opening of the powder hopper assembly 50 can be kept facing upwards, preventing powder from spilling out during the movement. Furthermore, the baffle assembly 40 allows the powder hopper assembly 50 to clean up the powder cake during the movement, effectively improving cleaning efficiency.

[0094] This application also provides embodiments of a fully automatic coffee machine, which includes the extraction mechanism described above. The structure and function of the extraction mechanism can be found in the above embodiments and will not be repeated here.

[0095] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An extraction mechanism, characterized by, The extraction mechanism comprises: a support; a baffle assembly movably arranged on the support; a powder bin assembly movably arranged on the support, the powder bin assembly having a first position for placing powder and a second position for brewing a beverage, the powder bin assembly comprising a powder bin cup and a push rod, a part of the push rod being arranged inside the powder bin cup and a part of the push rod extending out of the powder bin cup, the push rod being capable of reciprocating in the powder bin cup; when the powder bin assembly moves from the first position to the second position, the push rod abuts against a side wall of the baffle assembly and pushes the baffle assembly to move, and when the powder bin assembly moves to the second position, the push rod is separated from the side wall of the baffle assembly, the baffle assembly is reset, and the push rod is located above the baffle assembly; when the powder bin assembly moves from the second position to the first position, an end of the push rod away from the powder bin cup abuts against a surface of the baffle assembly facing the powder bin cup, and the push rod moves in the powder bin cup to push a brewed powder cake out; the baffle assembly comprises a sliding plate movably arranged on the support and a first elastic member connecting the sliding plate and the support; the sliding plate has a blocking position and a avoiding position, the first elastic member drives the sliding plate to move to the blocking position, and the push rod drives the sliding plate to move to the avoiding position during the movement of the powder bin assembly from the first position to the second position.

2. The extraction mechanism according to claim 1, wherein the support is provided with a first guide portion, the sliding plate is provided with a second guide portion, and the first guide portion is connected with the second guide portion to switch the sliding plate between the blocking position and the avoiding position.

3. The extraction mechanism according to claim 2, wherein the first guide portion comprises a first fixed member, the second guide portion comprises a sliding groove, the first fixed member is located in the sliding groove, and the sliding plate is capable of sliding relative to the first fixed member.

4. The extraction mechanism according to claim 1, wherein an end of the sliding plate close to the first position is provided with a transition portion for abutting against the push rod.

5. The extraction mechanism according to claim 4, wherein the push rod comprises a rod body and a top plate, the top plate is arranged in the powder bin cup, one end of the rod body is connected with the top plate, and the other end of the rod body extends out of the powder bin cup.

6. The extraction mechanism according to claim 5, wherein the diameter of the top plate is equal to the inner diameter of the powder bin cup.

7. The extraction mechanism according to claim 6, wherein the powder bin assembly further comprises a second elastic member, the second elastic member is sleeved on the rod body, and the second elastic member is located outside the powder bin cup and abuts against the rod body and the powder bin cup respectively.

8. The extraction mechanism according to claim 7, wherein the first elastic member and the second elastic member are springs.

9. A fully automatic coffee machine, characterized in that, The extraction mechanism according to any one of claims 1-8.

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