Multifunctional coffee machine and use method thereof

Abstract

The invention relates to the technical field of coffee machines, in particular to a multifunctional coffee machine and a using method thereof.The multifunctional coffee machine comprises a brewing device assembly, a powder pressing device and a driving motor, the brewing device assembly and the powder pressing device cannot rotate and are located on the same axis and move relatively. According to the brewing device, through the obliquely-installed brewing cavity, the brewing device only needs to obliquely move to be mutually extruded with the powder pressing device during powder pressing and brewing, the processes of powder pressing and brewing of coffee powder and the like are completed, in the process, the brewing device assembly moves in the direction of an inclination angle, and filling of the coffee powder and powder pressing and brewing are completed in the inclination state; the slag pushing and scraping device has multiple functions, can be realized without additionally arranging a corresponding transmission structure of a corresponding process, is simpler and more reliable in structure, relatively reduces the cost, and is more suitable for popularization and application.

Description

Technical Field

[0001] This invention relates to the field of coffee machine technology, and in particular to a multi-functional coffee machine and its usage method. Background Technology

[0002] A coffee machine is a machine that can automatically grind, tamp, fill, brew, and remove coffee grounds to make coffee. Users only need to pour the coffee beans into the coffee machine to get a fragrant coffee, which is convenient, quick, and enhances the user experience.

[0003] Coffee machines on the market have relatively simple functions and complex structures. To achieve actions such as filling, tamping, and pushing coffee grounds, various corresponding transmission structures are required. For example, the brewing unit of existing coffee machines usually moves axially and then needs to rotate to collect and tamp the coffee grounds. This requires corresponding components such as the coffee grounds receiving cylinder and the tamp cylinder. All of these require additional transmission structures, making the structure complex and containing many parts. This not only makes it prone to mechanical failure, causing the coffee machine to jam and malfunction, but also takes up a lot of space and increases manufacturing and packaging costs.

[0004] Based on the above background, a multi-functional coffee machine and its usage method are proposed to solve the problem. Summary of the Invention

[0005] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0006] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a multi-functional coffee machine and its usage method.

[0007] To achieve the above objectives, the technical solution of the present invention is: a multi-functional coffee machine, comprising a brewing unit and a tamping device installed at a certain angle in the vertical direction within the machine casing, and a drive motor for driving the displacement of the brewing unit. The brewing unit and the tamping device are non-rotatable and move relative to each other on the same axis.

[0008] In some embodiments, the brewer assembly includes an angled brewing chamber and a piston assembly fitted within the brewing chamber. The distance between the piston assembly and the port of the brewing chamber forms the brewing chamber, which is used to fill coffee powder and add water via a water-adding component for brewing. The brewing chamber and the tamping device are located at the same angle.

[0009] In some embodiments, the piston assembly includes a piston head and a piston rod, the piston rod being connected to the lower side of the piston head, the piston head being fitted into the brewing chamber, and a brewing chamber being formed between the piston head and the port of the brewing chamber after the piston head is moved.

[0010] In some embodiments, a rotating shaft is installed on the outside of the brewing chamber, a torsion spring is sleeved on the outer wall of the rotating shaft, a powder scraper is connected to the rotating shaft and used to scrape the residue from the piston head, and ribs are installed inside the housing on the side of the brewing chamber and used to drive the powder scraper to rotate.

[0011] In some embodiments, the brewing chamber of the brewer assembly driven in the housing, the powder pressing head of the powder pressing device, and the central shaft of the drive motor are all located on the same axis. The drive motor is used to drive the displacement of the brewer assembly and cooperate with the powder pressing device to press the powder.

[0012] In some embodiments, when the drive motor is on the same axis as the brewer assembly and the powder pressing device, a screw is connected to the drive motor, a threaded cylinder threaded to the screw is connected to the lower side of the brewing chamber, a fixed rod is fixedly installed inside the housing, a piston rod is movably inserted into the fixed rod, a protrusion is provided on the outer side of the fixed rod, a slot for the protrusion to engage is provided inside the piston rod, a limit spring is connected between the fixed rod and the piston head, a buckle plate is installed on the inner wall of the brewing chamber, and bosses that cooperate with the buckle plate are provided on both sides of the piston head and the piston rod. A limit rod is also installed inside the housing and connected to the fixed rod for limiting the maximum downward movement distance of the piston rod.

[0013] In some embodiments, the drive motor is disposed inside the threaded cylinder.

[0014] In some embodiments, when the drive motor is installed on the side of the brewing unit and the powder pressing device on the same axis, a linear module connected to the side of the brewing chamber is installed inside the housing. The drive motor is connected to the linear module for transmission. A limiting pin is installed inside the housing to hold the brewing chamber in place. The shell of the brewing chamber is divided into upper and lower sections that are telescopic. The lower section of the brewing chamber is located above the limiting pin. A baffle and a limiting hook at the same angle as the baffle are installed inside the brewing chamber and are located outside the piston rod. A large spring and a small spring are also included. The large spring is located between the baffle and the brewing chamber, and the small spring is sleeved on the piston rod. The piston rod is clearance-fitted with the lower section of the brewing chamber. The piston head is supported on one side of the baffle. The piston head and the piston rod complete the entire set of actions of loading powder, pressing powder, brewing, pushing slag, and scraping slag through the deformation of the large spring and the small spring.

[0015] In some embodiments, a slot for connecting rod movement is provided at the bottom of the housing, and the bottom wall of the slot is in contact with the connecting rod in its initial state.

[0016] In some embodiments, a connecting seat with a spring is provided inside the housing, the lower side of the piston rod passes through the connecting seat and rests on the spring, and a pin and a connecting rod are installed inside the housing. The pin is installed on the side of the brewing chamber, and the connecting rod is rotatably connected to one side of the piston rod and has a hole through which the pin passes.

[0017] In some embodiments, the brewing chamber is provided with a liquid outlet pipe switch and is connected to the brewing chamber, and a water dispenser is installed inside the housing and is connected to the liquid outlet pipe switch for discharging coffee liquid and wastewater.

[0018] In some embodiments, the water dispenser includes a coffee liquid outlet connector, a plug, a three-way valve, an inner sleeve, and a sealing ring. The coffee liquid outlet connector is embedded in the housing. The three-way valve is installed on the brewing chamber and is connected to the outlet pipe switch. The coffee liquid outlet connector and the three-way valve are located at the same angle inside the housing. An inner sleeve is installed on the lower outlet side of the three-way valve. A plug for blocking the inner sleeve is provided at the tail of the coffee liquid outlet connector. A sealing ring is installed on the plug. A wastewater tank for collecting wastewater discharged from the three-way valve is installed on the lower part of the inner side of the housing.

[0019] In some embodiments, the housing is equipped with a grinding assembly and a removable coffee powder channel, the coffee powder channel being positioned above the brewing chamber, the grinding assembly being located on the side of the coffee powder channel, and the outlet of the grinding assembly being located diagonally above the brewing chamber.

[0020] A method for using a multi-functional coffee machine includes the following steps: S1. Fill the brewer assembly with coffee powder at an angle. S2. The brewing unit and the powder pressing device move at an angle relative to each other inside the machine casing; S3. The tamping device enters the brewer assembly and tamps the coffee powder; S4. The water filling component inside the coffee machine fills the brewing unit with water to carry out the brewing process.

[0021] In some embodiments, in step S4, the coffee powder is brewed in the brewing chamber of the brewer assembly. After brewing, the brewer assembly moves diagonally downward, and the piston assembly pushes the coffee cake out of the brewing chamber.

[0022] By adopting the above technical solution, the beneficial effects of the present invention are as follows: The present invention uses an inclined brewing chamber, which allows the brewer to simply tilt and press against the tamping device during the brewing process to complete the tamping and brewing of coffee powder. This process is achieved by the brewer assembly moving at an inclined angle, completing the filling of coffee powder, tamping and brewing, and pushing and scraping of the grounds in an inclined state. It has multiple functions and does not require the addition of corresponding processes and transmission structures. The structure is simpler, more reliable, and the cost is relatively lower, making it more suitable for widespread use.

[0023] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0024] Undoubtedly, such and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and figures.

[0025] To make the above-mentioned beneficial effects and other objects, features and advantages of the present invention more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0027] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0029] Explanation of key figure labels: Figure 1 This is a schematic diagram of the coffee machine structure according to Embodiment 1 of the present invention; Figure 2 This is a cross-sectional structural diagram of the powder loading process in Embodiment 1 of the present invention; Figure 3 This is a cross-sectional structural diagram of the powder pressing and brewing process in Embodiment 1 of the present invention; Figure 4 This is a schematic cross-sectional view of the slag pushing process in Embodiment 1 of the present invention; Figure 5 This is a cross-sectional structural diagram of the slag scraping process in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the powder scraper from another perspective of Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of the working state structure of the powder scraper in Embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the structure of the rotating shaft and torsion spring in Embodiment 1 of the present invention; Figure 9 This is a schematic diagram of the water outlet structure according to Embodiment 1 of the present invention; Figure 10 For the present invention Figure 9 A magnified schematic diagram of the structure of A in the diagram; Figure 11 This is a schematic diagram of the structure of the three-way valve waste discharge channel connected in Embodiment 1 of the present invention; Figure 12 This is a schematic diagram of the coffee liquid outlet channel connection in Embodiment 1 of the present invention; Figure 13 This is an exploded structural diagram of the coffee liquid outlet connection seat and the three-way valve according to Embodiment 1 of the present invention; Figure 14 This is a schematic diagram of the coffee machine structure according to Embodiment 2 of the present invention; Figure 15 This is a schematic diagram of the internal structure of the coffee machine according to Embodiment 2 of the present invention; Figure 16 This is a cross-sectional structural diagram of the powder loading process of the brewer assembly in Embodiment 2 of the present invention; Figure 17 For the present invention Figure 16 A magnified schematic diagram of the local structure of B in the diagram; Figure 18 This is a schematic diagram of the brewing chamber and piston head according to Embodiment 2 of the present invention; Figure 19 This is a schematic diagram of the brewing chamber structure according to Embodiment 2 of the present invention; Figure 20 This is a schematic diagram of the piston head and piston rod according to Embodiment 2 of the present invention; Figure 21 This is a cross-sectional structural diagram of the powder-pressing and brewing process of the brewing device component in Embodiment 2 of the present invention; Figure 22 This is a schematic cross-sectional view of the slag pushing process of the brewer assembly in Embodiment 2 of the present invention; Figure 23 This is a cross-sectional structural diagram of the slag scraping process in Embodiment 2 of the present invention; Figure 24 This is a schematic diagram of the initial state of Embodiment 3 of the present invention; Figure 25 For the present invention Figure 24 A partially enlarged structural diagram of C in the diagram; Figure 26 This is a schematic diagram of the upward movement of the brewing chamber in Embodiment 3 of the present invention; Figure 27 This is a schematic diagram of the structure of the powder pressing device entering the brewing chamber in Embodiment 3 of the present invention; Figure 28 This is a schematic diagram of the structure of the powder pressing device and the piston head extruding powder according to Embodiment 3 of the present invention; Figure 29This is a schematic diagram of the structure of the brewing chamber retraction in Embodiment 3 of the present invention; Figure 30 This is a schematic diagram of the structure of Embodiment 3 of the present invention, showing the piston head protruding outside the brewing chamber; Figure 31 This is a schematic diagram of the working state structure of the powder scraper in Embodiment 3 of the present invention; Figure 32 This is a cross-sectional structural diagram from another perspective of Embodiment 3 of the present invention.

[0030] Explanation of main reference numerals: Housing-1, Powder tamping device-3, Connecting seat-4, Pin-5, Connecting rod-6, Wastewater tank-7, Rotating shaft-8, Torsion spring-9, Powder scraper-10, Ribs-11, Powder residue box-12, Coffee powder channel-13, Grinding assembly-14, Limiting top post-15, Drive motor-16, Screw-17, Threaded cylinder-18, Fixing rod-19, Protrusion-20, Slot-23, Limiting spring-24, Buckle plate-25, Boss-26, Limiting rod-27.

[0031] Brewing device assembly-2, brewing chamber-21, piston assembly-22, piston head-221, piston rod-222, outlet pipe switch-223, baffle-225, limit hook-226, large spring-227, small spring-228; Water dispenser-224, coffee liquid outlet connector-2241, sealing head-2242, three-way valve-2243, inner tube sleeve-2244, sealing ring-2245. Detailed Implementation

[0032] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples, so that the process of how the present invention uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. It should be noted that, as long as there is no conflict, the various embodiments and features in the various embodiments of the present invention can be combined with each other, and the resulting technical solutions are all within the protection scope of the present invention.

[0033] Furthermore, numerous specific details are set forth in the following description for illustrative purposes to provide a thorough understanding of the embodiments of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without the specific details or particular methods described herein.

[0034] Example 1: Please see Figure 1-8 The present invention provides a multi-functional coffee machine, comprising: a brewing unit 2 and a tamping device 3 installed at a certain angle in the vertical direction within a housing 1, and a drive motor 16 for driving the displacement of the brewing unit 2. The brewing unit 2 and the tamping device 3 are non-rotatable and move relative to each other on the same axis.

[0035] When in use, the brewer assembly 2 is placed in the machine housing 1 at an angle, and coffee powder can be filled into the brewer assembly 2 at the angle. After filling, the brewer assembly 2 and the tamping device 3 move at an angle relative to each other, so that the tamping device 3 and the brewer assembly 2 can tamp the coffee powder. The water filling component in the coffee machine adds water to the brewer assembly 2, thereby realizing the coffee machine to complete the filling, tamping and brewing actions in the angled direction.

[0036] According to some embodiments of this application, optionally, the brewing unit 2 includes an angled brewing chamber 21 and a piston assembly 22 fitted inside the brewing chamber 21. The distance between the piston assembly 22 and the port of the brewing chamber 21 is the brewing chamber, which is used to fill coffee powder and add water to the brewing unit. The brewing chamber and the tamping device 3 are located at the same angle; the angle of the brewing chamber 21 is 30 degrees to 70 degrees. When coffee powder is added to the coffee machine, it falls into the brewing chamber. The brewing chamber 21 is controlled to move at an angle with the piston assembly 22 until the tamping device 3 enters the brewing chamber. The tamping device 3 and the piston assembly 22 squeeze the coffee powder in the brewing chamber. The water adding unit then adds water, thus completing the tamping and brewing process.

[0037] According to some embodiments of this application, optionally, the piston assembly 22 includes a piston head 221 and a piston rod 222. The piston rod 222 is connected to the lower side of the piston head 221. The piston head 221 is fitted into the brewing chamber, and the distance between the piston head 221 and the port of the brewing chamber 21 is the brewing chamber. Coffee powder falling into the brewing chamber moves obliquely through the brewing chamber 21, carrying the piston head 221 and piston rod 222. The tamping device 3 then enters the brewing chamber and tamps the coffee powder with the piston head 221.

[0038] Please see Figure 2-4The housing 1 is provided with a connecting seat 4 with a spring. The piston rod 222 passes through the connecting seat 4 and rests on the spring. The housing 1 is equipped with a pin 5 and a connecting rod 6. The pin 5 is installed on the side of the brewing chamber 21. The connecting rod 6 is rotatably connected to one side of the piston rod 222 and has a hole through which the pin 5 passes. After brewing, the coffee liquid is drained. Then, the brewing chamber 21 is controlled to move downwards at an angle with the pin 5. During the movement, the connecting rod 6 returns to its initial state. The brewing chamber 21 continues to move downwards, and the pin 5 passes through the insertion hole on the connecting rod 6, which limits the connecting rod 6 and prevents it from tilting. This supports the piston rod 222, preventing the piston head 221 from moving downwards with the brewing chamber 21. As the brewing chamber 21 continues to move downwards, the piston head 221 slowly protrudes outside the brewing chamber 21, pushing the coffee grounds out of the brewing chamber 21 and pushing them out for the grounds pushing process. The connecting seat 4 allows the piston rod 222 to continue pushing the connecting rod 6 when the connecting rod 6 is restricted. Through the isolation of the connecting seat 4 and the buffer of the spring, the connecting rod 6 is buffered and protected.

[0039] According to some embodiments of this application, optionally, a slot for the movement of the connecting rod 6 is provided at the bottom of the housing 1. The bottom wall of the slot is in contact with the connecting rod 6 in its initial state, which has the function of supporting the connecting rod 6 to prevent it from moving back too much and causing the pin 5 to be misaligned with the socket.

[0040] Please see Figure 1-2 The machine casing 1 is equipped with a grinding assembly 14 and a detachable coffee powder channel 13. The coffee powder channel 13 is located above the brewing chamber, and the grinding assembly 14 is located on the side of the coffee powder channel 13. The outlet of the grinding assembly 14 is located diagonally above the brewing chamber. This allows the coffee machine to not only add coffee powder but also grind the coffee powder and then introduce it, making it more versatile with its dual-channel design. Furthermore, the detachable coffee powder channel 13 facilitates cleaning and ensures a good taste for the brewed coffee.

[0041] Please see Figure 9-13The brewing chamber 21 is equipped with a liquid outlet pipe switch 223, which is connected to the brewing chamber via a piston head 221. A water dispenser 224 is installed inside the housing 1 and is connected to the liquid outlet pipe switch 223 for discharging coffee liquid and wastewater. The water dispenser 224 includes a coffee liquid outlet connector 2241, a sealing head 2242, a three-way valve 2243, an inner sleeve 2244, and a sealing ring 2245. The coffee liquid outlet connector 2241 is embedded inside the housing 1, and the three-way valve 2243 is installed on the brewing chamber 21 and is connected to the liquid outlet pipe switch 223. The outlet pipe switch 223 is connected, and the coffee liquid outlet connector 2241 and the three-way valve 2243 are located at the same angle inside the housing 1. An embedded sleeve 2244 is installed on the lower outlet side of the three-way valve 2243. A plug head 2242 is provided at the tail of the coffee liquid outlet connector 2241 to block the embedded sleeve 2244. A sealing ring 2245 is installed on the plug head 2242. A wastewater tank 7 is installed on the lower inner side of the housing 1 to collect the wastewater discharged from the three-way valve 2243. It has the function of collecting wastewater and making it easier to treat later. When the coffee machine needs to discharge coffee liquid, during the brewing process, the piston head 221 has already moved the three-way valve 2243 to align with the coffee liquid outlet connector 2241 via the outlet pipe switch 223. The plug head 2242 is then inserted into the three-way valve 2243 until it blocks the inner sleeve 2244, thus opening the coffee liquid outlet pipe and allowing the coffee liquid to be discharged. When wastewater needs to be drained after cleaning, the brewing chamber 21 moves, and the coffee liquid outlet connector 2241, along with the plug head 2242, moves to the outlet... The left side of the outlet pipe switch 223 allows the sealing head 2242 to unblock the inner sleeve 2244 and also blocks the upward flow channel (coffee liquid outlet pipe) from the outlet pipe switch 223 to the coffee liquid outlet connector 2241, so that wastewater can be discharged from the three-way valve 2243 through the inner sleeve 2244. This process enables automatic pipe switching at different positions without the need for extra pipe settings, which not only makes the internal pipe layout of the coffee machine simpler, but also makes the flow direction more precise and improves practicality.

[0042] Please see Figure 5-8A rotating shaft 8 is installed on the outside of the brewing chamber 21. A torsion spring 9 is sleeved on the outer wall of the rotating shaft 8. A scraper 10 is connected to the rotating shaft 8 and is used to scrape the residue from the piston head 221. A rib 11 is installed on the side of the brewing chamber 21 inside the housing 1 and is used to push the scraper 10 to rotate. After the piston head 221 is exposed in the brewing chamber 21, the scraper 10 moves with the brewing chamber 21 and its lower right corner contacts the rib 11. The rib 11 pushes the scraper 10, causing it to rotate under the action of the rotating shaft 8. The rotation passes over the piston head 221, thus scraping the exposed piston head 221. The torsion spring 9 allows the scraper 10 to move along with the brewing chamber 21 when it moves diagonally upward. Its lower right corner then no longer contacts the rib 11, and the torsion spring 9 drives the rotating shaft 8 to rotate, the scraper 10 returns to its original position, and its side re-fits the inner wall of the housing 1.

[0043] Example 2: Please see Figure 15-24 When the drive motor 16 is installed on the side of the brewing unit 2 and the powder pressing device 3 on the same axis, a linear module connected to the side of the brewing chamber 21 is installed inside the housing 1. The drive motor 16 is connected to the linear module for transmission. The slider on the linear module has the function of moving the brewing chamber 21 obliquely upward or downward. A rotating shaft 8 is installed on the outside of the brewing chamber 21. A torsion spring 9 is sleeved on the outer wall of the rotating shaft 8. A powder scraper 10 is connected to the rotating shaft 8 and is used to scrape the residue from the piston head 221. A rib 11 is installed inside the housing 1 on the side of the brewing chamber 21 and is used to push the powder scraper 10 to rotate. The rib 11 is a chamfered rib and is set in the opposite direction to the rib 11 in Embodiment 1. A limit post 15 is installed inside the housing 1 and is used to hold the brewing chamber in place. The brewing chamber 21 has a shell divided into upper and lower sections that are retractable. The lower section of the brewing chamber 21 is located above the limiting top post 15. Inside the brewing chamber 21, there is a baffle 225 and a limiting hook 226 located at the same angle as the baffle 225 and located outside the piston rod 222. It also includes a large spring 227 and a small spring 228. The large spring 227 is located between the baffle 225 and the brewing chamber 21, and the small spring 228 is sleeved on the piston rod 222. The piston rod 222 and the lower section of the brewing chamber 21 are in clearance fit. The piston head 221 is supported on one side of the baffle 225. The piston head 221 and the piston rod 222 complete the entire set of actions of loading powder, pressing powder for brewing, and pushing and scraping slag through the deformation of the large spring 26 and the small spring 27.

[0044] By adopting the above technical solution, during use, coffee powder is introduced into the brewing chamber and falls onto the piston head 221 of the piston assembly 22. The brewing unit 2 is controlled to move upward, and the tamping device 3 enters the brewing chamber to tamp the coffee powder with the piston head 221. Water is then introduced to brew the coffee. After brewing, the coffee is removed, and the brewing unit 2 is controlled to move back. When the lower side of the moving brewing chamber 21 presses against the limiting post 15, the upper and lower sections of the brewing chamber 21 extend and retract. The large spring 227 deforms under the pressure of the shell and the baffle 225, causing the brewing chamber 21 to continue to move downward relative to the piston head 221 until the baffle 225 abuts against the limiting hook 226. At this time, the piston head 221, pushing the coffee cake out of the brewing chamber 21, pushes it out for the coffee cake pushing process. When the baffle 225 abuts against the limiting hook 226, the brewing process begins. As the cavity 21 continues to move downward, the piston rod 222 extends out of the brewing cavity 21 under the deformation of the small spring 228, pushing the piston head 221 upward so that it can reach a sufficient height to contact the scraper 10 for scraping. The rib 11 serves the following purpose: after the piston head 221 is exposed from the brewing cavity 21, the scraper 10 moves away from the rib 11 as the upper shell of the brewing cavity 21 moves, thus removing the restriction on the scraper 10. This causes the originally deformed torsion spring 9 to rotate with the shaft 8, causing the scraper 10 to rotate and scrape the exposed piston head 221. When the brewing cavity 21 moves upward again with the scraper 10, the side wall of the scraper 10 contacts the rib 11, the torsion spring 9 deforms, and the rib 11 pushes the scraper 10 straight from the oblique position, thus limiting its movement. The processes of loading powder, pressing powder, and pushing slag can be completed simply by the deformation combination of the large spring 227 and the small spring 228 when the brewer component 2 moves. There is no need to add corresponding processes or transmission structures. The structure is simpler, more reliable, and the cost is relatively lower, making it more suitable for widespread use.

[0045] According to some embodiments of this application, optionally, the lower section of the brewing chamber 21 is located above the limiting top post 3. This allows the limiting top post 3 to abut against the lower section of the brewing chamber 21 when the brewing chamber 21 moves downward, causing it to extend and retract relative to the upper section of the chamber.

[0046] According to some embodiments of this application, optionally, a powder residue box 12 is installed on the lower inner side of the housing 1 for collecting residue scraped off the piston head 221 by the powder scraper 10. This serves to collect the scraped residue, making it easier to process later.

[0047] Example 3: Please see Figure 5-8 , Figure 24-32When the drive motor 16 is on the same axis as the brewing unit 2 and the powder pressing device 3, the center lines of the brewing chamber 21 of the brewing unit, the powder pressing head of the powder pressing device 3, and the central axis of the drive motor 16 are all on the same axis. The drive motor 16 is used to drive the displacement of the brewing unit 2 and cooperate with the powder pressing device 3 to press the powder. A rotating shaft 8 is installed on the outside of the brewing chamber 21, and a torsion spring 9 is sleeved on the outer wall of the rotating shaft 8. A powder scraper 10 is connected to the rotating shaft 8 and is used to scrape the residue from the piston head 221. Ribs 11 are installed on the side of the brewing chamber 21 inside the housing 1 and are used to push the powder scraper 10 to rotate. A screw 17 is connected to the drive motor 16. A threaded cylinder 18 connected to the screw 17 is connected to the lower side of the brewing chamber 21. A fixing rod 19 is fixedly installed inside the housing 1. A piston rod 222 is movably inserted into the fixing rod 19. A protrusion 20 is provided on the outer side of the fixing rod 19. A slot 23 for the protrusion 20 to be engaged is provided inside the piston rod 222. A limit spring 24 is connected between the fixing rod 19 and the piston head 221. A buckle plate 25 is installed on the inner wall of the brewing chamber 21. Both sides of the piston head 221 and the piston rod 222 are provided with protrusions 26 that cooperate with the buckle plate 25. A limit rod 27 is also installed inside the housing 1 and is connected to the fixing rod 19 to limit the maximum downward movement distance of the piston rod 222.

[0048] By adopting the above technical solution, when in use, coffee powder is introduced into the brewing chamber and falls onto the piston head 221 of the piston assembly 22. The drive motor 16 works, driving the screw 17 to rotate, causing the threaded cylinder 18 to move obliquely upward against the brewing chamber 21. When the brewing chamber 21 moves up a certain distance, the retaining plate 25 will contact the protrusion 26 on the piston head 221. At this time, the brewing chamber 21 continues to move upward. Under the action of the retaining plate 25 and the protrusion 26, the piston head 221 and piston rod 222 will move obliquely upward together, and the limiting spring 24 will deform until the powder tamping device 3 enters the brewing chamber 21 and, together with the piston head 221, tamps the powder in the brewing chamber, thereby completing the tamping process. Then, water is introduced to brew the coffee, and the coffee is discharged after brewing.

[0049] According to some embodiments of this application, optionally, the drive motor 16 is disposed inside the threaded cylinder 18, so that the screw 17 threadedly connected to the threaded cylinder 18 is also disposed inside the threaded cylinder 18. Compared with an external drive motor 16, this has the effect of saving space and making the internal structure of the coffee machine more compact.

[0050] When coffee grounds need to be expelled after extraction, the drive motor 16 controls the screw 17 to reverse, driving the threaded cylinder 18 to move back along with the brewing chamber 21. The retaining plate 25 then disengages from the boss 26 on the piston head 221, releasing its pushing force. The limiting spring 24 then returns to its original position, pulling the piston head 221 and piston rod 222 back to their initial position on the fixed rod 19. Continuing to control the threaded cylinder 18 and brewing chamber 21 to move downwards, the piston head 221 protrudes outside the brewing chamber 21, pushing the coffee grounds out of the brewing chamber 21, completing the grounds removal process.

[0051] To ensure thorough and residue-free slag removal, the scraper 10 moves along with the brewing chamber 21. When the brewing chamber 21 moves down to the point where the plate 25 presses against the protrusion 26 on the piston rod 222, the brewing chamber 21 pushes the piston rod 222 and piston head 221 down together. As the brewing chamber 21 moves, the scraper 10 contacts the rib 11 at its lower right corner. The rib 11 pushes the scraper 10, causing it to rotate under the action of the rotating shaft 8. The rotation passes over the piston head 221, thus scraping the exposed piston head 221. The torsion spring 9 ensures that when the brewing chamber 21 moves diagonally upward, the scraper 10 moves along with it, and its lower right corner no longer contacts the rib 11. The torsion spring 9 then drives the rotating shaft 8 to rotate, and the scraper 10 resets, with its side re-fitting against the inner wall of the casing 1.

[0052] During the movement of the piston rod 222 within the brewing chamber 21, the protrusion 20 engages with the slot 23. This temporarily limits the movement of the piston rod 222 and piston head 221, preventing them from moving together with the brewing chamber 21. It ensures that the piston head 221 can either protrude from or retract into the brewing chamber 21. For example, after brewing, when the brewing chamber 21 retracts, the limiting spring 24 pulls the piston head 221 back to its original position, restoring it to the position where the protrusion 20 engages. The groove 23 allows the piston rod 222 to be temporarily fixed on the fixing rod 19. The piston rod 222 will not move down with the brewing chamber 21, but will instead push against the piston head 221 and protrude outside the brewing chamber 21. When it is exposed to a suitable position, the buckle plate 25 just contacts the protrusion 26 on the piston rod 222, and moves down with the piston rod 222. The protrusion 20 disengages from the groove 23, and the piston head 221 remains in the exposed position, waiting for the slag scraping process performed by the powder scraper 10. As the brewing chamber 21 moves upward, after moving a certain distance, the protrusion 20 will re-engage with the slot 23, allowing the piston head 221 to retract into the brewing chamber 21 and form a brewing chamber inside for holding coffee powder. As the brewing chamber 21 continues to move upward, the latch plate 25 contacts the protrusion 26 on the piston head 221, and moves the piston head 221 upward together. At this time, the protrusion 20 separates from the slot 23, allowing the piston head 221 to move upward and, together with the tamping device 3, to extrude the coffee powder in the chamber.

[0053] When the piston rod 222 moves down to its maximum extent, its lower side will hit the limit rod 27, and the limit rod 27 will stop its movement, indicating that this is the maximum downward movement distance, and the slag scraping process is completed.

[0054] A method for using a multi-functional coffee machine includes the following steps: S1. Fill coffee powder into brewer assembly 2 at an inclined angle; S2. The brewing unit 2 and the powder pressing device 3 move at an angle relative to each other inside the housing 1; S3, The tamping device 3 enters the brewer assembly 2 to tamp the coffee powder; S4. The water filling component inside the coffee machine fills water into the brewer assembly 2 to carry out the brewing process.

[0055] In some embodiments, in step S4, the coffee powder is brewed in the brewing chamber 21 of the brewer assembly 2. After brewing, the brewer assembly 2 moves diagonally downward, and the piston head 221 pushes the coffee cake out of the brewing chamber 21.

[0056] Through the above steps, the coffee machine can complete the entire process of loading, tamping, brewing, and subsequently pushing and scraping the coffee grounds in one direction.

[0057] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0058] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0059] Furthermore, the described features or characteristics can be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented without the aforementioned specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A multi-functional coffee machine, characterized in that, include: The brewing unit and the powder pressing device are installed at a certain angle in the vertical direction inside the housing. The drive motor is used to drive the displacement of the brewing unit. The brewing unit and the powder pressing device are non-rotatable and move relative to each other on the same axis.

2. The multi-functional coffee machine according to claim 1, characterized in that, The brewing unit includes an angled brewing chamber and a piston assembly fitted inside the brewing chamber. The distance between the piston assembly and the port of the brewing chamber forms the brewing chamber, which is used to fill coffee powder and add water to brew the coffee. The brewing chamber and the tamping device are located at the same angle.

3. A multi-functional coffee machine according to claim 2, characterized in that, The piston assembly includes a piston head and a piston rod. The piston rod is connected to the lower side of the piston head. The piston head fits into the brewing chamber, and after the piston head moves, a brewing chamber is formed between it and the port of the brewing chamber.

4. A multi-functional coffee machine according to claim 3, characterized in that, A rotating shaft is installed on the outside of the brewing chamber, and a torsion spring is sleeved on the outer wall of the rotating shaft. A powder scraper is connected to the rotating shaft and is used to scrape the residue from the piston head. Ribs are installed inside the housing on the side of the brewing chamber and are used to drive the powder scraper to rotate.

5. A multi-functional coffee machine according to claim 4, characterized in that, The brewing chamber of the brewer assembly, the powder pressing head of the powder pressing device, and the central shaft of the drive motor are all located on the same axis. The drive motor is used to drive the displacement of the brewer assembly and cooperate with the powder pressing device to press the powder.

6. A multi-functional coffee machine according to claim 5, characterized in that, When the drive motor, brewer assembly, and powder pressing device are on the same axis, a screw is connected to the drive motor, and a threaded cylinder connected to the screw is connected to the lower side of the brewing chamber. A fixed rod is fixedly installed inside the housing, and the piston rod is movably inserted into the fixed rod. A protrusion is provided on the outer side of the fixed rod, and a slot for the protrusion to engage is provided inside the piston rod. A limit spring is connected between the fixed rod and the piston head. A buckle plate is installed on the inner wall of the brewing chamber, and bosses that cooperate with the buckle plate are provided on both sides of the piston head and piston rod. A limit rod is also installed inside the housing and connected to the fixed rod to limit the maximum downward movement distance of the piston rod.

7. A multi-functional coffee machine according to claim 6, characterized in that, The drive motor is located inside the threaded cylinder.

8. A multi-functional coffee machine according to claim 4, characterized in that, When the drive motor is installed on the side of the brewing unit and the powder pressing device on the same axis, a linear module connected to the side of the brewing chamber is installed inside the housing. The drive motor is connected to the linear module for transmission. A limit pin is installed inside the housing to hold the brewing chamber in place. The shell of the brewing chamber is divided into upper and lower sections that are telescopic. The lower section of the brewing chamber is located above the limit pin. A baffle and a limit hook at the same angle as the baffle are installed inside the brewing chamber and are located outside the piston rod. A large spring and a small spring are also included. The large spring is located between the baffle and the brewing chamber, and the small spring is sleeved on the piston rod. The piston rod and the lower section of the brewing chamber are in clearance fit. The piston head is supported on one side of the baffle. The piston head and the piston rod complete the entire set of actions of loading powder, pressing powder, brewing, pushing slag, and scraping slag through the deformation of the large spring and the small spring.

9. A multi-functional coffee machine according to claim 8, characterized in that, The bottom of the housing has a slot for the movement of the connecting rod, and the bottom wall of the slot fits the connecting rod in its initial state.

10. A multi-functional coffee machine according to claim 3, characterized in that, The machine housing is equipped with a connecting seat with a spring. The lower side of the piston rod passes through the connecting seat and rests on the spring. A pin and a connecting rod are installed inside the machine housing. The pin is installed on the side of the brewing chamber. The connecting rod is rotatably connected to one side of the piston rod and has a hole through which the pin passes.

11. A multi-functional coffee machine according to claim 3, characterized in that, The brewing chamber is equipped with a liquid outlet pipe switch that connects to the brewing chamber. A water dispenser is installed inside the casing and connects to the liquid outlet pipe switch for discharging coffee liquid and wastewater.

12. A multi-functional coffee machine according to claim 11, characterized in that, The water dispenser includes a coffee liquid outlet connector, a plug, a three-way valve, an inner sleeve, and a sealing ring. The coffee liquid outlet connector is embedded in the machine housing. The three-way valve is installed on the brewing chamber and is connected to the outlet pipe switch. The coffee liquid outlet connector and the three-way valve are at the same angle inside the machine housing. An inner sleeve is installed on the lower outlet side of the three-way valve. A plug is provided at the tail of the coffee liquid outlet connector to block the inner sleeve. A sealing ring is installed on the plug. A wastewater tank is installed on the lower inner side of the machine housing to collect wastewater discharged from the three-way valve.

13. A multi-functional coffee machine according to claim 3, characterized in that, The machine housing is equipped with a grinding assembly and a detachable coffee powder channel. The coffee powder channel is located above the brewing chamber, the grinding assembly is located on the side of the coffee powder channel, and the outlet of the grinding assembly is located diagonally above the brewing chamber.

14. A method of using a multi-functional coffee machine according to any one of claims 2-13, characterized in that, Includes the following steps: S1. Fill the brewer assembly with coffee powder at an angle. S2. The brewing unit and the powder pressing device move at an angle relative to each other inside the machine casing; S3. The tamping device enters the brewer assembly to tamp the coffee powder; S4. The water filling component inside the coffee machine fills the brewing unit with water to carry out the brewing process.

15. The method of using a multi-functional coffee machine according to claim 14, characterized in that, In step S4, the coffee grounds are brewed in the brewing chamber of the brewer assembly. After brewing, the brewer assembly moves diagonally downwards, and the piston assembly pushes the coffee cake out of the brewing chamber.

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