Powder receiving cylinder movement mechanism, extraction mechanism, coffee machine and coffee extraction method

Abstract

The application relates to the technical field of household electrical equipment, and discloses a powder receiving cylinder movement mechanism, an extraction mechanism, a coffee machine and a coffee extraction method. The powder receiving cylinder movement mechanism is simple in structure, contains fewer components, is less likely to cause mechanical failure, is less likely to cause the coffee machine to be stuck and stopped, and can enable the coffee machine to be normally operated for a long time. The powder receiving cylinder movement mechanism comprises a powder receiving cylinder assembly and a rotating driving assembly. The output shaft of the rotating driving assembly is connected with the powder receiving cylinder assembly and drives the powder receiving cylinder assembly to rotate in a vertical plane, so that the powder receiving cylinder assembly has a powder receiving position, a powder pressing position and a powder pushing position. When the powder receiving cylinder assembly is in the powder pushing position, the cylinder opening of the powder receiving cylinder assembly faces obliquely downward.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, specifically to a coffee powder container movement mechanism, an extraction mechanism, a coffee machine, and a coffee extraction method. Background Technology

[0002] A fully automatic coffee machine is an automated electrical device that can realize the entire coffee brewing process, including grinding, tamping, filling, brewing, and removing residue. The main components of a fully automatic coffee machine include a grinder assembly, a powder receiving hopper assembly, a powder tamping hopper assembly, a powder scraper assembly, a heating assembly, and a water tank.

[0003] In existing fully automatic coffee machines, the coffee powder dispenser is driven by a motor to rotate and move linearly along a track to achieve the processes of dispensing, tamping, and scraping coffee powder. The specific process is as follows: First, the dispenser is in its initial dispensing position to dispense coffee powder. Then, the dispenser rotates towards the tamping cylinder and moves diagonally upwards along the track towards the tamping cylinder, pressing the coffee powder into the tamping cylinder. Under the combined action of the dispenser and the tamping cylinder, the coffee powder is compacted. Afterwards, the dispenser moves in the opposite direction along the track (away from the tamping cylinder) and the coffee powder is scraped off by the scraping component.

[0004] However, this type of powder receiving cylinder movement mechanism has a relatively complex structure and contains many parts, making it prone to mechanical failure, which can cause the coffee machine to jam and prevent it from working properly. Summary of the Invention

[0005] In view of this, the present invention provides a coffee powder receiving cylinder movement mechanism, an extraction mechanism, a coffee machine, and a coffee extraction method to solve the problems of complex structure, easy malfunction and jamming of existing coffee powder receiving cylinder movement mechanisms, which cause the coffee machine to malfunction.

[0006] In a first aspect, the present invention provides a powder receiving cylinder moving mechanism, comprising:

[0007] Powder receiving cylinder assembly;

[0008] A rotation drive assembly is provided, the output shaft of which is connected to the powder receiving cylinder assembly and drives the powder receiving cylinder assembly to rotate in a vertical plane, so that the powder receiving cylinder assembly has a powder receiving position, a powder pressing position, and a powder pushing position. When the powder receiving cylinder assembly is in the powder pushing position, the cylinder opening of the powder receiving cylinder assembly faces obliquely downward.

[0009] Beneficial Effects: The powder receiving cylinder motion mechanism of the present invention includes a powder receiving cylinder assembly and a rotation drive assembly. The rotation drive assembly can drive the powder receiving cylinder assembly to rotate in a vertical plane. The powder receiving cylinder assembly has a powder receiving position, a powder pressing position, and a powder pushing position. When the powder receiving cylinder assembly is in the powder pushing position, the cylinder opening of the powder receiving cylinder assembly faces obliquely downward. When the powder receiving cylinder assembly is in the powder pushing position, the cylinder opening of the powder receiving cylinder assembly is set to face obliquely downward, so that the powder cake can fall more quickly under the action of gravity, which is beneficial to improving the powder pushing efficiency. The powder receiving cylinder assembly of the present invention only performs rotational motion and does not need to perform linear motion to realize the powder receiving, pressing, and pushing processes. Compared with the existing powder receiving cylinder motion mechanism that requires control of the rotation and linear motion of the powder receiving cylinder assembly, the powder receiving cylinder motion mechanism of the present invention is greatly simplified, contains fewer parts, is less prone to mechanical failure, is less likely to cause the coffee machine to jam and stop, and can enable the coffee machine to operate normally for a long time.

[0010] In one optional embodiment, the angle between the opening of the powder receiving cylinder assembly when it is in the powder pressing position and the opening of the powder receiving cylinder assembly when it is in the powder pushing position is 180°.

[0011] Beneficial effects: In the powder receiving cylinder movement mechanism of the present invention, when the powder receiving cylinder assembly is in the powder pushing position, the cylinder opening of the powder receiving cylinder assembly is not only oriented diagonally downward, but also the angle between the cylinder opening orientation of the powder receiving cylinder assembly in the powder pressing position and the cylinder opening orientation of the powder receiving cylinder assembly in the powder pushing position is 180°. This makes it easier for the powder receiving cylinder assembly to perform powder pushing operation using the extraction cylinder assembly, further accelerating the powder cake falling speed and improving the powder pushing efficiency.

[0012] In one optional embodiment, the powder receiving cylinder assembly includes a base and a powder receiving cylinder, the output shaft is connected to the base, and the powder receiving cylinder is detachably connected to the base.

[0013] Beneficial effects: The powder receiving cylinder motion mechanism of the present invention includes a base and a powder receiving cylinder. This powder receiving cylinder assembly has a simple structure, which is easy to structurally match with the output shaft of the rotation drive assembly. Furthermore, the powder receiving cylinder and the base can be detached and connected. When it is necessary to clean the powder receiving cylinder, it can be easily removed from the base, which is convenient for users.

[0014] In one optional embodiment, the powder receiving cylinder and the base are detachably connected via a snap-fit ​​mechanism.

[0015] Beneficial effects: The powder receiving cylinder movement mechanism of the present invention allows the powder receiving cylinder and the base to be detachably connected via a snap-fit ​​mechanism. This snap-fit ​​mechanism has a simple structure, is easy to set up, and is very convenient to assemble and disassemble.

[0016] In one optional embodiment, the powder receiving cylinder includes a detachably connected cylinder body and a cylinder cover, and the snap-fit ​​mechanism is disposed between the base and the cylinder cover.

[0017] Beneficial effects: The powder receiving cylinder movement mechanism of the present invention has a simple structure, is easy to set up, and is very convenient to disassemble and assemble.

[0018] In one alternative embodiment, the latching mechanism includes a resilient latch and a slot that cooperate with each other, the resilient latch being disposed on one of the base and the cylinder cover, and the slot being disposed on the other.

[0019] Beneficial effects: The powder receiving cylinder movement mechanism of the present invention includes a snap-fit ​​mechanism comprising a mutually cooperating elastic snap-fit ​​and a snap-fit ​​groove. The elastic snap-fit ​​is disposed on one of the base and the cylinder cover, and the snap-fit ​​groove is disposed on the other. This snap-fit ​​mechanism has a simple structure, is easy to set up, has a very flexible setting method, is very convenient to disassemble and assemble, and has good structural reliability.

[0020] In one optional embodiment, the elastic buckle includes a first buckle, a second buckle, and an elastic element, wherein the elastic element is disposed between the first buckle and the second buckle, and when the elastic element is in a compressed state, the first buckle and the second buckle can disengage from the slot.

[0021] Beneficial effects: The powder receiving cylinder movement mechanism of the present invention includes a first buckle, a second buckle and an elastic element. The elastic element is disposed between the first buckle and the second buckle. When the elastic element is in a compressed state, the first buckle and the second buckle can disengage from the slot. This buckle mechanism has a simple structure, is easy to set up, is very convenient to disassemble and assemble, and has good structural reliability.

[0022] Secondly, the present invention also provides an extraction mechanism, comprising:

[0023] Mounting bracket;

[0024] An extraction cylinder assembly is mounted on the mounting bracket;

[0025] As described above, the powder receiving cylinder movement mechanism is installed on the mounting bracket. When the powder receiving cylinder assembly is in the powder pressing position, the cylinder opening of the powder receiving cylinder assembly faces the extraction cylinder assembly and is set obliquely downward. When the powder receiving cylinder assembly is in the powder pushing position, the cylinder opening of the powder receiving cylinder assembly is set away from the extraction cylinder assembly. The extraction cylinder of the extraction cylinder assembly can move relative to the mounting bracket toward the cylinder opening of the powder receiving cylinder assembly.

[0026] Beneficial effects: The extraction mechanism of the present invention allows the powder receiving cylinder assembly to rotate in a vertical plane, and the extraction cylinder of the extraction cylinder assembly to move relative to the mounting bracket toward the opening of the powder receiving cylinder assembly, thereby realizing the powder receiving, pressing and pushing processes. Since the structure of the powder receiving cylinder movement mechanism is greatly simplified, the overall structure of the extraction mechanism is also relatively simple, making it less prone to mechanical failure and less likely to cause the coffee machine to jam and stop, thus enabling the coffee machine to operate normally for a long time.

[0027] In one optional embodiment, when the powder receiving cylinder assembly is in the powder pushing position, the opening of the powder receiving cylinder assembly is positioned away from the extraction cylinder assembly.

[0028] Beneficial effects: In the extraction mechanism of the present invention, when the powder receiving cylinder assembly is in the powder pushing position, the opening of the powder receiving cylinder assembly is set away from the extraction cylinder assembly, which makes it easier for the powder receiving cylinder assembly to push powder by utilizing the movement of the extraction cylinder in the extraction cylinder assembly. This makes the cooperation between the powder receiving cylinder assembly and the extraction cylinder assembly easier, speeds up the powder cake falling speed, and improves the powder pushing efficiency.

[0029] In one optional embodiment, when the powder receiving cylinder assembly is in the powder pressing position, the extraction cylinder extends into the cylinder opening of the powder receiving cylinder assembly to press the powder; when the powder receiving cylinder assembly is in the powder pushing position, the extraction cylinder pushes the powder pushing component of the powder receiving cylinder assembly toward the cylinder opening of the powder receiving cylinder assembly.

[0030] Beneficial effects: The extraction mechanism of the present invention has a simple structure and easy connection between the powder receiving cylinder assembly and the extraction cylinder assembly, which makes it easy to realize the powder receiving, pressing and pushing processes of coffee machines.

[0031] In an alternative implementation, a triggering mechanism is further included, which is used to detect whether the powder receiving cylinder assembly is in the initial position.

[0032] Beneficial effects: The extraction mechanism of the present invention also includes a triggering mechanism, which can detect whether the powder receiving cylinder assembly is in the initial position, so as to facilitate the subsequent powder receiving, pressing and pushing processes.

[0033] In one optional embodiment, the triggering mechanism includes a trigger switch and a trigger rib. The trigger switch is triggered when the trigger rib contacts the trigger switch. The trigger switch is disposed on one of the mounting bracket and the base of the powder receiving cylinder assembly, and the trigger rib is disposed on the other.

[0034] Beneficial effects: The extraction mechanism of the present invention has a relatively simple triggering mechanism and a flexible setting method, which facilitates structural layout.

[0035] Thirdly, the present invention also provides a coffee machine, including the powder receiving cylinder movement mechanism as described above or the extraction mechanism as described above.

[0036] Since the coffee machine of the present invention includes the powder receiving cylinder movement mechanism or extraction mechanism of the present invention, and has the same beneficial effects as the powder receiving cylinder movement mechanism or extraction mechanism of the present invention, it will not be described in detail here.

[0037] Fourthly, the present invention also provides a coffee extraction method applied to the above-mentioned coffee machine, comprising:

[0038] Check if the powder receiving cylinder assembly is in its initial position;

[0039] If the powder receiving cylinder assembly is in the initial position, control the powder receiving cylinder assembly to rotate to the powder receiving position to receive powder;

[0040] After the powder is collected, the powder receiving cylinder assembly is controlled to rotate in the reverse direction to the powder pressing position for powder pressing;

[0041] Extracting coffee liquid;

[0042] After extraction is completed, the powder receiving cylinder assembly is rotated to the powder pushing position to push the powder.

[0043] Since the coffee extraction method of the present invention is applied to the coffee machine of the present invention and has the same beneficial effects as the powder receiving cylinder movement mechanism or extraction mechanism of the present invention, it will not be described in detail here. Attached Figure Description

[0044] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0045] Figure 1 This is an exploded view of the powder receiving cylinder assembly in the powder receiving cylinder motion mechanism of the present invention;

[0046] Figure 2 This is an exploded view of the powder receiving cylinder in the powder receiving cylinder motion mechanism of the present invention.

[0047] Figure 3 This is a cross-sectional view of the powder receiving cylinder assembly in the powder receiving cylinder motion mechanism of the present invention;

[0048] Figure 4 This is a cross-sectional view showing the connection between the mounting bracket and the powder receiving cylinder assembly base in the extraction mechanism of the present invention.

[0049] Figure 5 This is an exploded schematic diagram showing the connection relationship between the mounting bracket and the powder receiving cylinder assembly base in the extraction mechanism of the present invention;

[0050] Figure 6 This is a schematic diagram showing the installation positions of the mounting bracket and the powder container assembly base in the coffee machine of the present invention (some structures are hidden).

[0051] Figure 7 This is an exploded view of the mounting positions of the mounting bracket and the powder container assembly base in the coffee machine of the present invention (some structures are hidden).

[0052] Figure 8a This is a schematic diagram of the coffee powder receiving process of the coffee machine of the present invention. Figure 1 ;

[0053] Figure 8b This is a schematic diagram of the coffee powder receiving process of the coffee machine of the present invention. Figure 2 ;

[0054] Figure 8c This is a schematic diagram of the coffee powder receiving process of the coffee machine of the present invention. Figure 3 ;

[0055] Figure 8d This is a schematic diagram of the coffee powder receiving process of the coffee machine of the present invention. Figure 4 ;

[0056] Figure 9a This is a schematic diagram of the coffee tamping process of the coffee machine of the present invention. Figure 1 ;

[0057] Figure 9b This is a schematic diagram of the coffee tamping process of the coffee machine of the present invention. Figure 2 ;

[0058] Figure 9c This is a schematic diagram of the coffee tamping process of the coffee machine of the present invention. Figure 3 ;

[0059] Figure 9d This is a schematic diagram of the coffee tamping process of the coffee machine of the present invention. Figure 4 ;

[0060] Figure 10a This is a schematic diagram of the coffee powder feeding process of the coffee machine of the present invention. Figure 1 ;

[0061] Figure 10b This is a schematic diagram of the coffee powder feeding process of the coffee machine of the present invention. Figure 2 ;

[0062] Figure 10c This is a schematic diagram of the coffee powder feeding process of the coffee machine of the present invention. Figure 3 ;

[0063] Figure 10d This is a schematic diagram of the coffee powder feeding process of the coffee machine of the present invention. Figure 4 .

[0064] Explanation of reference numerals in the attached figures:

[0065] 1. Base;

[0066] 2. Powder receiving cylinder; 201. Cylinder body; 202. Cylinder cover; 203. Powder receiving cylinder filter screen; 204. Powder receiving cylinder sealing ring; 205. Push rod; 2051. Push rod assembly part; 206. Assembly column; 207. First screw;

[0067] 301, Elastic buckle; 3011, First buckle; 3012, Second buckle; 3013, Elastic element; 302, Slot;

[0068] 4. Mounting bracket; 401. Mounting slot; 403. Mounting hole; 404. Extraction cylinder assembly mounting column;

[0069] 5. Extraction cylinder;

[0070] 601. Trigger switch; 602. Trigger rib;

[0071] 7. Electric motor;

[0072] 8. Drive gear;

[0073] 9. Base gear;

[0074] 10. Pressing blocks;

[0075] 11. Base sealing ring;

[0076] 12. Second screw;

[0077] 13. The third screw;

[0078] 14. Housing

[0079] 15. Bean warehouse;

[0080] 16. Coffee powder channel;

[0081] 17. Toner receiving box;

[0082] 18. Pressed powder. Detailed Implementation

[0083] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0084] The following is combined with Figures 1-10d This document describes embodiments of the coffee powder receiving cylinder movement mechanism, extraction mechanism, coffee machine, and coffee extraction method of the present invention.

[0085] According to an embodiment of the present invention, in a first aspect, a powder receiving cylinder motion mechanism is provided, comprising: a powder receiving cylinder assembly and a rotation drive assembly, wherein the output shaft of the rotation drive assembly is connected to the powder receiving cylinder assembly and drives the powder receiving cylinder assembly to rotate in a vertical plane, so that the powder receiving cylinder assembly has a powder receiving position, a powder pressing position and a powder pushing position, wherein when the powder receiving cylinder assembly is in the powder pushing position, the cylinder opening of the powder receiving cylinder assembly faces obliquely downward.

[0086] This powder dispenser mechanism, when in the powder-pushing position, has its nozzle facing downwards at an angle, allowing the powder cake to fall more quickly under gravity, thus improving dispensing efficiency. Furthermore, the powder dispenser only rotates, eliminating the need for linear motion, to complete the powder dispensing, pressing, and dispensing processes. This greatly simplifies the mechanism's structure, reducing the number of parts and minimizing the risk of mechanical failures. It also reduces the likelihood of the coffee machine jamming or stopping, allowing for extended operation and enhancing the user experience.

[0087] like Figures 1-3 As shown, the coffee powder receiving cylinder assembly is a structure for containing coffee powder. The interior of the receiving cylinder assembly has a receiving cavity for containing coffee powder. An opening is provided at the top of the receiving cavity, through which coffee powder can enter and exit the receiving cavity. The volume of the receiving cavity should be selected and set according to needs, and this embodiment does not impose any restrictions on this.

[0088] In this embodiment, the powder receiving cylinder assembly includes a base 1 and a powder receiving cylinder 2. The base 1 and the powder receiving cylinder 2 are detachably connected. The powder receiving cylinder 2 is connected to the output shaft of the rotation drive assembly through the base 1. That is, the output shaft of the rotation drive assembly is connected to the base 1, thereby driving the powder receiving cylinder assembly to rotate.

[0089] Specifically, the base 1 is a quadrangular prism structure lacking one sidewall. The powder receiving cylinder 2 is embedded into the base 1 from the side lacking the sidewall and connected to the base 1. Since the outer wall of the powder receiving cylinder 2 facing the base 1 is cylindrical, the inner wall structure of the base 1 is also an arc surface to achieve a closer and more reliable connection with the powder receiving cylinder 2. That is, the cross-sectional shape of the outer wall of the base 1 perpendicular to the axis is similar to a "U" shape, while the cross-sectional shape of the inner wall of the base 1 perpendicular to the axis is similar to a "U" shape. The design of the base 1 facilitates the installation and connection of the powder receiving cylinder 2 with other assembly structures.

[0090] The base 1 and the powder receiving cylinder 2 are detachably connected. When it is necessary to clean the powder receiving cylinder 2, the powder receiving cylinder 2 can be easily removed from the base 1, which is convenient for users.

[0091] The powder receiving cylinder 2 includes a detachably connected cylinder body 201 and a cylinder cover 202. The cylinder body 201 is generally cylindrical in shape and has the aforementioned receiving cavity inside. One end of the powder receiving cylinder 2 is a cylinder opening, and the other end has an opening. Both the cylinder opening and the opening of the powder receiving cylinder 2 are connected to the receiving cavity. In this embodiment, the cylinder cover 202 is generally rectangular in shape and is located on the side of the cylinder body 201 away from the base 1.

[0092] The cylinder body 201 and the cylinder cover 202 are detachably connected by fasteners. Specifically, two mounting posts 206 are provided on the outer wall of the cylinder body 201 facing the cylinder cover 202, and correspondingly, two mounting holes are formed on the cylinder cover 202. The fasteners are first screws 207, and the two first screws 207 pass through the mounting holes and the mounting posts 206 in sequence to assemble the cylinder body 201 and the cylinder cover 202 together.

[0093] The cylinder 201 is also equipped with a coffee powder pushing assembly, a portion of which extends out of the opening of the cylinder 201. Specifically, the coffee powder pushing assembly includes a coffee powder receiving filter 203, a coffee powder receiving sealing ring 204, and a push rod 205. The coffee powder receiving filter 203 is a circular filter with a diameter matching the inner diameter of the cylinder 201. One end of the push rod 205 has a cylindrical structure, which is the push rod assembly 2051. The diameter of the push rod assembly 2051 matches the inner diameter of the cylinder 201. The coffee powder receiving filter 203 is disposed on the push rod assembly 2051. The side of the coffee powder receiving filter 203 away from the push rod assembly 2051 receives coffee powder. The other end of the push rod 205 extends out of the opening of the cylinder 201 to cooperate with other mechanisms (such as the extraction cylinder assembly). Specifically, the top rod 205 has a cross-sectional shape perpendicular to its length direction that is "+", and the opening of the cylinder 201 is a "+" shaped opening, so that the other end of the top rod 205 can extend out of the opening.

[0094] The powder receiving cylinder sealing ring 204 is sleeved on the outer wall of the top rod assembly 2051. The powder receiving cylinder sealing ring 204 is used to seal the gap between the outer wall of the top rod assembly 2051 and the inner wall of the cylinder 201 to prevent coffee powder from leaking into the gap.

[0095] In addition, the other end of the push rod 205 extends out of the opening of the cylinder 201 and can cooperate with other mechanisms (such as the extraction cylinder assembly). The powder pushing assembly can move along the axial direction of the cylinder 201 under the drive of other mechanisms to complete the powder pushing process.

[0096] Furthermore, the powder receiving cylinder 2 and the base 1 are detachably connected via a snap-fit ​​mechanism. This snap-fit ​​mechanism has a simple structure, is easy to set up, is not easily damaged, has good structural reliability, and is very convenient to assemble and disassemble. In this embodiment, the snap-fit ​​mechanism is located between the base 1 and the cylinder cover 202.

[0097] Furthermore, the latching mechanism includes a mutually cooperating elastic latch 301 and a latching groove 302. The elastic latch 301 is disposed on one of the base 1 and the cylinder cover 202, and the latching groove 302 is disposed on the other.

[0098] In this embodiment, the elastic buckle 301 is disposed on the side of the cylinder cover 202 facing the cylinder body 201, and the slot 302 is disposed on the base 1. Specifically, the elastic buckle 301 includes a first buckle 3011, a second buckle 3012, and an elastic element 3013. The elastic element 3013 is disposed between the first buckle 3011 and the second buckle 3012. When the elastic element 3013 is in a compressed state, the first buckle 3011 and the second buckle 3012 can disengage from the slot 302.

[0099] In this embodiment, the cylinder cover 202 is provided with a buckle assembly hole on the side facing the cylinder body 201 for respectively installing the first buckle 3011 and the second buckle 3012. When the first buckle 3011 and the second buckle 3012 are installed into the buckle assembly hole, the outer part of the first buckle 3011 and the second buckle 3012 can protrude from the buckle assembly hole. The outer part of the first buckle 3011 and the second buckle 3012 includes a manual pressing part and a snap-fit ​​part. The manual pressing part is the user operation pressing position, and the snap-fit ​​part is the position that cooperates with the buckle groove 302.

[0100] The cylinder cover 202 has a baffle rib on the side facing the cylinder body 201, and an elastic element 3013 is provided on each side of the baffle rib, i.e., there are two elastic elements 3013. One elastic element 3013 has its two ends abutting against the first buckle 3011 and the baffle rib, respectively, and the other elastic element 3013 has its two ends abutting against the second buckle 3012 and the baffle rib, respectively. Preferably, the two elastic elements 3013 are coaxially arranged. The elastic element 3013 can be compressed or restored by pressing or releasing the manual pressing part. When the two elastic elements 3013 are in the natural state, the engaging parts of the first buckle 3011 and the second buckle 3012 protrude from the buckle mounting hole and can engage with the slot 302. When the two elastic elements 3013 are in the compressed state, the engaging parts of the first buckle 3011 and the second buckle 3012 retract into the buckle mounting hole, and at this time the engaging parts disengage from the slot 302.

[0101] The inner walls of the two side plates of the base 1 covering the cylinder 201 are formed with slots 302, and the positions and shapes of the two slots 302 are respectively matched with the snap-fit ​​parts of the first snap 3011 and the second snap 3012.

[0102] In other embodiments, the elastic buckle 301 may also be disposed on the base 1, and the slot 302 may be disposed on the cylinder cover 202.

[0103] In this embodiment, the rotation drive assembly includes a motor 7, a drive gear 8, and a base gear 9. The output shaft of the motor 7 is connected to the drive gear 8, and the drive gear 8 meshes with the base gear 9. The base gear 9 is disposed on the outer wall of the base 1 on the side facing away from the powder receiving cylinder 2. The powder receiving cylinder assembly can rotate in a vertical plane under the drive of the motor 7.

[0104] Furthermore, the angle between the opening of the powder receiving cylinder assembly when it is in the pressing position and the opening of the powder receiving cylinder assembly when it is in the pushing position is 180°.

[0105] In this embodiment, when the powder receiving cylinder assembly is in the powder pushing position, the opening of the powder receiving cylinder assembly is not only oriented diagonally downward, but also the angle between the opening of the powder receiving cylinder assembly in the powder pressing position and the opening of the powder receiving cylinder assembly in the powder pushing position is 180°. This allows the powder receiving cylinder assembly to more conveniently use the extraction cylinder assembly to push the powder, further accelerating the powder cake falling speed and improving the powder pushing efficiency.

[0106] like Figures 4-5 As shown, this embodiment also provides an extraction mechanism, including: a mounting bracket 4, an extraction cylinder assembly, and the aforementioned powder receiving cylinder movement mechanism. The extraction cylinder assembly is mounted on the mounting bracket 4, and the powder receiving cylinder movement mechanism is mounted on the mounting bracket 4. When the powder receiving cylinder assembly is in the powder pressing position, the opening of the powder receiving cylinder assembly faces the extraction cylinder assembly. When the powder receiving cylinder assembly is in the powder pushing position, the opening of the powder receiving cylinder assembly is away from the extraction cylinder assembly and is angled downwards. The extraction cylinder 5 of the extraction cylinder assembly can move relative to the mounting bracket 4 towards the opening of the powder receiving cylinder assembly.

[0107] The extraction mechanism is installed in the coffee machine to perform operations such as receiving, tamping, and pushing coffee powder. The mounting bracket 4 is installed with the corresponding structure of the coffee machine. In this embodiment, the mounting bracket 4 is a plate-shaped structure with a mounting groove 401 at its lower part. The coffee powder receiving cylinder movement mechanism is installed in the mounting groove 401, and the extraction cylinder assembly is located diagonally above the coffee powder receiving cylinder movement mechanism.

[0108] The extraction cylinder assembly includes extraction cylinder 5 and other structures and components that are present in other existing extraction cylinder assemblies, such as water pipes and extraction cylinder filters. Cold or hot water is introduced into the water pipes for coffee extraction, which will not be described in detail in this embodiment.

[0109] The extraction cylinder 5 can move linearly relative to the mounting bracket 4 under the drive of a driving device (such as a stepper motor). The direction of movement of the extraction cylinder 5 is towards or away from the powder receiving cylinder assembly, that is, the extraction cylinder 5 performs reciprocating linear motion. Preferably, the extraction cylinder 5 and the cylinder body 201 are arranged to coincide on the cylinder opening axis to facilitate their cooperation.

[0110] Furthermore, when the powder receiving cylinder assembly is in the powder pressing position, the extraction cylinder 5 extends into the cylinder opening of the powder receiving cylinder assembly to press the powder; when the powder receiving cylinder assembly is in the powder pushing position, the extraction cylinder 5 pushes the powder pushing component of the powder receiving cylinder assembly toward the cylinder opening of the powder receiving cylinder assembly.

[0111] Specifically, the extraction cylinder 5 has a cylindrical structure, and its outer diameter is smaller than the inner diameter of the cylinder opening of the cylinder body 201. The end face of the extraction cylinder 5 facing the powder receiving cylinder 2 is preferably flat. When the powder receiving cylinder assembly is in the pressing position, the extraction cylinder 5 can enter the opening of the powder receiving cylinder 2, and the end face of the extraction cylinder 5 presses the coffee powder into a cake. When the powder receiving cylinder assembly is in the pushing position, the extraction cylinder 5 is adapted to abut against the push rod 205 and apply a pushing force to the push rod 205, so that the pushing assembly moves toward the opening of the powder receiving cylinder assembly to push the coffee cake out of the receiving cavity of the cylinder body 201, thus realizing the pushing process.

[0112] Furthermore, when the powder receiving cylinder assembly is in the powder pushing position, its opening faces away from the extraction cylinder assembly. That is, when the powder receiving cylinder assembly is in the powder pushing position, the axis of its opening still coincides with the axis of the extraction cylinder 5, but the opening is away from the extraction cylinder 5. The angle between the openings of the powder receiving cylinder assembly in the powder pressing position and in the powder pushing position is 180°.

[0113] In addition, the motors 7 of the powder receiving cylinder assembly and the rotation drive assembly of the powder receiving cylinder motion mechanism are respectively located on both sides of the mounting bracket 4.

[0114] The base 1 has an installation position that matches the mounting groove 401. The mounting groove 401 is provided with a mounting hole 403. The base 1 is installed on the mounting bracket 4 through the cooperation of the pressure block 10, the base sealing ring 11 and the fasteners. Specifically, the pressure block 10 has a circular structure. The second screw 12 passes through the screw hole and the mounting hole 403 on the pressure block 10 in sequence to install the base 1 onto one side of the mounting bracket 4. The motor 7 is installed onto the other side of the mounting bracket 4 by the third screw 13.

[0115] In addition, the mounting bracket 4 is also provided with an extraction cylinder assembly mounting column 404, and the extraction cylinder assembly is assembled and connected with the extraction cylinder assembly mounting column 404.

[0116] Furthermore, the extraction mechanism also includes a triggering mechanism for detecting whether the powder receiving cylinder assembly is in its initial position. Specifically, the triggering mechanism includes a trigger switch 601 and a trigger rib 602. When the trigger rib 602 contacts the trigger switch 601, the trigger switch 601 is triggered, and the control system can then sense that the powder receiving cylinder assembly is in its initial position. The trigger switch 601 is disposed on one of the mounting bracket 4 and the base 1 of the powder receiving cylinder assembly, and the trigger rib 602 is disposed on the other.

[0117] In this embodiment, the trigger switch 601 is disposed on the mounting bracket 4, and the trigger rib 602 is disposed on the base 1. Specifically, the base 1 has a trigger rib 602 on its side facing the mounting bracket 4, and the trigger rib 602 protrudes from the side of the base 1. The mounting bracket 4 has a limiting groove formed on its side facing the base 1, and the trigger switch 601 is disposed at one end of the limiting groove. The trigger rib 602 can slide along the limiting groove. Since the powder receiving cylinder assembly rotates in a vertical plane, the limiting groove is an arc-shaped groove.

[0118] In this embodiment, the trigger switch 601 is located at one end of the limiting groove near the extraction cylinder assembly. When the trigger rib 602 contacts the trigger switch 601, the trigger switch 601 is triggered. At this time, the opening of the powder receiving cylinder assembly is set towards the extraction cylinder assembly, that is, the initial position is the same as the powder pressing position.

[0119] In other embodiments, the trigger switch 601 may also be disposed on the base 1, while the trigger rib 602 may be disposed on the mounting bracket 4.

[0120] like Figures 6-7 As shown, this embodiment also provides a coffee machine including the above-described powder receiving cylinder movement mechanism or the above-described extraction mechanism.

[0121] The coffee machine includes a housing 14, and the powder container movement mechanism or extraction mechanism is housed within the housing 14. Specifically, a mounting bracket 4 is connected to the housing 14, and the mounting bracket 4 is vertically oriented to... Figure 4 Taking the angle as an example, the extraction cylinder assembly is located on the upper right of the powder receiving cylinder motion mechanism, and the powder receiving cylinder motion mechanism is located on the lower left of the extraction cylinder assembly. When the powder receiving cylinder assembly is in the powder pressing position and the powder pushing position, the cylinder opening axis of the cylinder body 201 coincides with the axis of the extraction cylinder 5. The difference is that when the powder receiving cylinder assembly is in the powder pressing position, the cylinder opening of the cylinder body 201 faces the extraction cylinder 5, while when the powder receiving cylinder assembly is in the powder pushing position, the cylinder opening of the cylinder body 201 faces away from the extraction cylinder 5.

[0122] In addition, the coffee machine also has a bean hopper 15, a coffee powder channel 16, and a powder container 17. The bean hopper 15 is located on the top of the coffee machine and is used to hold coffee beans, which are ground into coffee powder by the coffee grinder assembly. The upper end of the coffee powder channel 16 is connected to the bean hopper 15. When the powder container assembly is in the powder receiving position, the opening of the powder container assembly faces the lower end (powder outlet) of the coffee powder channel 16, allowing coffee powder to enter the receiving cavity of the powder container assembly through the coffee powder channel 16 and the opening of the powder container assembly. The powder container 17 is located at the lower part of the housing 14 and is used to receive and collect the coffee powder puck 18 pushed out from the cylinder 201.

[0123] The coffee machine in this embodiment also has a control system, which controls the overall operation of the coffee machine. The motor 7 and the trigger switch 601 are electrically connected to the control system. Furthermore, in order to improve the efficiency of dispensing coffee powder, the coffee machine can also be equipped with a powder scraping mechanism to scrape the coffee powder 18 down into the powder receiving box 17.

[0124] Of course, the coffee machine in this embodiment also has other structures and components that are common to existing coffee machines, such as a liquid outlet through which the extracted coffee flows into the coffee cup, which will not be described in detail in this embodiment.

[0125] When the powder receiving hopper assembly is in the powder receiving position, the opening of the powder receiving hopper assembly faces upward and is directly opposite the powder outlet of the coffee powder channel 16, and the push rod 205 is set in the vertical direction; when the powder receiving hopper assembly is in the powder tamping position, the opening of the powder receiving hopper assembly faces the extraction cylinder 5; when the powder receiving hopper assembly is in the powder pushing position, the opening of the powder receiving hopper assembly faces away from the extraction cylinder 5, and the push rod 205 faces the extraction cylinder 5.

[0126] like Figures 8a-10d As shown, this embodiment also provides a coffee extraction method applied to the above-mentioned coffee machine, including:

[0127] Step S01: Detect whether the powder receiving cylinder assembly is in the initial position;

[0128] After the coffee machine is started, it is first necessary to check whether the powder receiving cylinder assembly is in the initial position. In this embodiment, the initial position refers to the position when the opening of the powder receiving cylinder assembly faces the extraction cylinder 5, that is, the initial position is the same as the tamping position.

[0129] The control system detects whether the powder receiving cylinder assembly is in its initial position by triggering switch 601 and triggering rib 602. When triggering rib 602 contacts triggering switch 601, the control system considers the powder receiving cylinder assembly to be in its initial position.

[0130] Step S02: If the powder receiving cylinder assembly is in the initial position, control the powder receiving cylinder assembly to rotate to the powder receiving position to receive powder;

[0131] If the powder receiving cylinder assembly is in the initial position, the control system controls motor 7 to rotate the powder receiving cylinder assembly to the powder receiving position, such as... Figures 8a-8d As shown in the figure, the coffee powder receiving cylinder assembly rotates counterclockwise from its initial position to the receiving position to receive coffee powder. Coffee powder enters the receiving cavity of the cylinder 201 through the coffee powder channel 16 and the cylinder opening of the cylinder 201, completing the receiving process.

[0132] Step S03: After the powder receiving is completed, control the powder receiving cylinder assembly to rotate in the reverse direction to the powder pressing position for powder pressing;

[0133] After the powder is collected, the control system controls motor 7 to rotate the powder receiving cylinder assembly to the powder pressing position, such as... Figures 9a-9dAt the angle shown, the powder receiving cylinder assembly rotates clockwise from the powder receiving position to the powder pressing position to press the powder. At this time, the cylinder opening faces the following direction: Figure 9c The middle arrow points in the X direction.

[0134] Driven by the driving device, the extraction cylinder 5 moves toward the opening of the cylinder body 201 and enters the opening. Under the squeezing action of the extraction cylinder 5, the coffee powder in the receiving cavity is pressed into a powder cake 18, completing the tamping process.

[0135] Step S04: Extract the coffee liquid;

[0136] Water at a certain temperature is introduced into the extraction cylinder assembly. Under the pressure of the water pump, the water penetrates the coffee powder cake 18 and passes through the powder receiving filter screen 203. The resulting coffee liquid enters the outlet through the pipe and flows into the coffee cup.

[0137] Step S05: After extraction is completed, control the powder receiving cylinder assembly to rotate to the powder pushing position to push the powder.

[0138] After extraction, first control the extraction cylinder 5 away from the opening of the cylinder body 201, and then control the motor 7 to drive the powder receiving cylinder assembly to rotate to the powder pushing position. Figures 10a-10d At the angle shown, the powder receiving cylinder assembly rotates 180° counterclockwise from the powder pressing position to the powder pushing position to push the powder. At this time, the cylinder opening faces downwards and away from the extraction cylinder 5. The orientation of the cylinder opening at this time is... Figure 10c The direction of the middle arrow X'.

[0139] Driven by the driving device, the extraction cylinder 5 moves towards the push rod 205 of the cylinder body 201, pushing the push rod 205 and causing the powder pushing component inside the cylinder body 201 to move the powder cake 18 towards the cylinder opening until the powder cake 18 is pushed out of the receiving cavity. Under the action of gravity, the powder cake 18 falls into the powder collection box 17, at which point the powder collection cylinder filter 203 is flush with the cylinder opening plane. Of course, to improve the powder pushing efficiency, the coffee machine's powder scraping mechanism can assist in scraping the powder cake 18 off and letting it fall into the powder collection box 17.

[0140] In other embodiments, the elastic buckle 301 may also be provided with an elastic element 3013. In this case, the side of the cylinder cover 202 facing the cylinder body 201 is not provided with a baffle, and the two ends of the elastic element 3013 abut against the first buckle 3011 and the second buckle 3012 respectively.

[0141] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An extraction mechanism, characterized in that, include: Mounting bracket (4); The extraction cylinder assembly is disposed on the mounting bracket (4). A powder receiving cylinder motion mechanism is provided on the mounting bracket (4), and the powder receiving cylinder motion mechanism includes: a powder receiving cylinder assembly; A rotation drive assembly is provided, the output shaft of which is connected to the powder receiving cylinder assembly and drives the powder receiving cylinder assembly to rotate in a vertical plane, so that the powder receiving cylinder assembly has a powder receiving position, a powder pressing position and a powder pushing position. When the powder receiving cylinder assembly is in the powder pressing position, the cylinder opening of the powder receiving cylinder assembly is set towards the extraction cylinder assembly. When the powder receiving cylinder assembly is in the powder pushing position, the cylinder opening of the powder receiving cylinder assembly is away from the extraction cylinder assembly and is set obliquely downward. The extraction cylinder (5) of the extraction cylinder assembly can move relative to the mounting bracket (4) towards the cylinder opening of the powder receiving cylinder assembly.

2. The extraction mechanism according to claim 1, characterized in that, When the powder receiving cylinder assembly is in the powder pressing position, the extraction cylinder (5) extends into the cylinder opening of the powder receiving cylinder assembly to press the powder. When the powder receiving cylinder assembly is in the powder pushing position, the extraction cylinder (5) pushes the powder pushing component of the powder receiving cylinder assembly toward the cylinder opening of the powder receiving cylinder assembly.

3. The extraction mechanism according to claim 1 or 2, characterized in that, It also includes a triggering mechanism for detecting whether the powder receiving cylinder assembly is in its initial position.

4. The extraction mechanism according to claim 3, characterized in that, The powder receiving cylinder assembly includes a base (1) and a powder receiving cylinder (2). The output shaft of the rotation drive assembly is connected to the base (1). The powder receiving cylinder (2) is detachably connected to the base (1). The triggering mechanism includes a trigger switch (601) and a trigger rib (602). When the trigger rib (602) contacts the trigger switch (601), the trigger switch (601) is triggered. The trigger switch (601) is disposed on one of the mounting bracket (4) and the base (1) of the powder receiving cylinder assembly, and the trigger rib (602) is disposed on the other.

5. A coffee machine, characterized in that, Includes the extraction mechanism as described in any one of claims 1-4.

6. A coffee extraction method applied to the coffee machine of claim 5, characterized in that, include: Check if the powder receiving cylinder assembly is in its initial position; If the powder receiving cylinder assembly is in the initial position, control the powder receiving cylinder assembly to rotate to the powder receiving position to receive powder; After the powder is collected, the powder receiving cylinder assembly is controlled to rotate in the reverse direction to the powder pressing position for powder pressing; Extracting coffee liquid; After extraction is completed, the powder receiving cylinder assembly is rotated to the powder pushing position to push the powder.

7. The coffee extraction method according to claim 6, characterized in that, In the step of controlling the powder receiving cylinder assembly to rotate in the opposite direction to the powder pressing position after the powder receiving is completed, the extraction cylinder (5) of the extraction cylinder assembly extends into the cylinder opening of the powder receiving cylinder assembly to press the powder.

8. The coffee extraction method according to claim 6 or 7, characterized in that, After the extraction is completed, in the step of controlling the powder receiving cylinder assembly to rotate to the powder pushing position to push the powder, the extraction cylinder (5) of the extraction cylinder assembly pushes the powder pushing component of the powder receiving cylinder assembly to move towards the cylinder opening of the powder receiving cylinder assembly to push the powder cake (18) out of the powder receiving cylinder assembly.

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