Pressure deslagging structure and coffee machine

Abstract

The utility model provides a pressure deslagging structure and a coffee machine. The pressure deslagging structure comprises a brewing component, a water pressure component, an air pressure component and a funnel component, the water pressure assembly is arranged in the brewing assembly and used for generating high-pressure water, and a water pressure output pipe of the water pressure assembly is communicated with a water outlet of the brewing assembly; the air pressure assembly is used for generating high-pressure air; an air pressure output pipe of the air pressure assembly is communicated with a water outlet of the brewing assembly; the two ends of the funnel assembly are connected to the water outlet of the brewing assembly in a switchable mode, the funnel assembly is provided with an extraction opening, an extraction cavity and a residue discharging opening which are sequentially communicated, and a filter screen of the funnel assembly is located between the extraction cavity and the residue discharging opening; during extraction, the first end of the funnel assembly is connected to the water outlet of the brewing assembly, and the extraction opening is communicated with the water outlet of the brewing assembly. The pressure deslagging structure can be better in use convenience.

Description

Technical Field

[0001] This disclosure relates to the technical field of coffee machines, and in particular to a pressure-discharge structure and a coffee machine. Background Technology

[0002] Coffee plays a vital role in modern life, becoming an essential part of daily life and widely used in catering, homes, and offices. Current coffee machines generally consist of a main body and an extraction container. A water pump inside the machine generates high-pressure water to filter and extract coffee grounds from the container, thus brewing the coffee. However, because the coffee grounds are filtered through high-pressure water, the brewed coffee grounds adhere tightly to the bottom of the extraction container, forming a coffee puff. When re-brewing, users need to manually remove the coffee puff from the extraction container, a process that is not only repetitive and tedious but also difficult to thoroughly clean the bottom of the extraction container.

[0003] To address the aforementioned problems, existing technologies, such as the pressure-discharging mechanism proposed in patent CN118203238A, include a brewing body, an extraction support, and a filter press cup. The brewing body has a built-in pressure water pump, the outlet pipe of which is connected to the liquid outlet of the brewing body. The extraction support is connected to the brewing body and has a sequentially connected interface, mounting cavity, and discharge port. The interface is connected to the liquid outlet of the brewing body and to the outlet pipe of the pressure water pump. The filter press cup is used to hold coffee grounds and is detachably mounted in the mounting cavity. The bottom of the filter press cup has a number of evenly distributed filter holes. When discharging coffee grounds, the opening of the filter press cup faces and is connected to the discharge port. Through the filter holes, it is connected to the outlet pipe of the pressure water pump, allowing air from the pressure water pump to act on the coffee grounds through the filter holes at the bottom of the filter press cup, achieving efficient discharging of the coffee grounds and a high degree of cleanliness.

[0004] However, when the coffee machine needs to perform a grounds discharge operation, the extraction bracket must first be removed from the brewing unit, then the filter cup inside the extraction bracket must be disassembled and reinstalled into the mounting cavity with the bottom of the filter cup facing the opposite port, and finally the extraction bracket must be reinstalled in its original position. Conversely, when the coffee machine needs to perform an extraction operation, the extraction bracket must first be removed from the brewing unit, then the filter cup inside the extraction bracket must be disassembled and reinstalled into the mounting cavity with the rim of the filter cup facing the opposite port, and finally the extraction bracket must be reinstalled in its original position. This makes the process of switching between the extraction and grounds discharge modes of the coffee machine quite cumbersome and complicated, thus greatly reducing the ease of use of the coffee machine. Utility Model Content

[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a pressure-discharge structure and coffee machine with better ease of use.

[0006] The purpose of this disclosure is achieved through the following technical solution:

[0007] A pressure slag discharge structure, including

[0008] brewing components;

[0009] A water pressure assembly is provided inside the brewing assembly. The water pressure assembly is used to generate high-pressure water, and the water pressure output pipe of the water pressure assembly is connected to the water outlet of the brewing assembly.

[0010] The pressure slag discharge structure is characterized in that it further includes a pneumatic component and a funnel component, wherein the pneumatic component is used to generate high-pressure gas, and the pneumatic output pipe of the pneumatic component is connected to the water outlet of the cooking component.

[0011] The two ends of the funnel assembly can be switched to the water outlet of the brewing assembly. The funnel assembly has an extraction port, an extraction chamber and a slag discharge port connected in sequence. The filter screen of the funnel assembly is located between the extraction chamber and the slag discharge port.

[0012] During extraction, the first end of the funnel assembly is connected to the outlet of the brewing assembly, and the extraction port is connected to the outlet of the brewing assembly.

[0013] When slag is discharged, the second end of the funnel assembly is connected to the outlet of the cooking assembly, and the slag discharge port is connected to the outlet of the cooking assembly.

[0014] In one embodiment, the water pressure assembly includes a pressure water pump and a water pressure solenoid valve. The inlet of the pressure water pump is used to connect to the water supply structure. The pressure water pump is connected to the outlet of the brewing assembly through the water pressure output pipe. The water pressure solenoid valve is disposed on the water pressure output pipe to connect or block the water pressure output pipe.

[0015] In one embodiment, the pneumatic assembly includes a diaphragm pump and a pneumatic solenoid valve. The diaphragm pump is connected to the outlet of the brewing assembly through the pneumatic output pipe, and the pneumatic solenoid valve is disposed on the pneumatic output pipe for connecting or blocking the pneumatic output pipe.

[0016] In one embodiment, the pressure slag discharge structure further includes a three-way pipe and a main connecting pipe. The two ends of the main connecting pipe are respectively connected to the water outlet of the cooking component and the first connecting port of the three-way pipe. The pressure water pump is connected to the second connecting port of the three-way pipe through the water pressure output pipe, and the diaphragm pump is connected to the third connecting port of the three-way pipe through the air pressure output pipe.

[0017] In one embodiment, the brewing assembly includes a body and a brewing head, the water outlet of the brewing assembly is opened in the brewing head, the brewing head is installed and fixed on one side of the body, and the air pressure assembly and the water pressure assembly are both disposed in the body.

[0018] In one embodiment, the funnel assembly includes a funnel support and a filter press bowl. The two ends of the funnel support are switchably connected to the outlet of the brewing head. The extraction port, the extraction chamber, and the slag discharge port are all located on the funnel support. The filter press bowl is installed and fixed inside the extraction chamber. The bottom of the filter press bowl is the filter screen. The bottom of the filter press bowl faces the extraction port. A first sealing ring is fitted onto the outer peripheral wall of the filter press bowl. The inner side of the first sealing ring is in interference fit with the outer peripheral wall of the filter press bowl, and the outer side of the first sealing ring is in interference fit with the inner peripheral wall of the filter press bowl, so that the filter press bowl is limited and fixed inside the extraction chamber.

[0019] In one embodiment, at least one buckle protrudes from both ends of the funnel support. A first buckle protrudes from the outer peripheral wall of the first end of the funnel support, and a second buckle protrudes from the outer peripheral wall of the second end of the funnel support. The inner sidewall of the outlet of the brewing head is formed with a snap-fit ​​groove that is adapted to both the first buckle and the second buckle. By screwing the funnel support together, both the first buckle and the second buckle can be snapped and fixed with the snap-fit ​​groove.

[0020] In one embodiment, the rim of the filter press bowl is bent outward to form a bend, and the bend and the outer periphery of the filter press bowl form a limiting groove. The outer periphery of the first end of the funnel support abuts against the inner wall of the limiting groove, so that the filter press bowl is limited and fixed in the extraction chamber.

[0021] In one embodiment, the inner wall of the brewing head is further provided with an installation groove, which surrounds the outlet of the brewing head. A second sealing ring is provided in the installation groove. The second sealing ring is disposed opposite to the outer periphery of both ends of the funnel support. During extraction, the first end of the funnel support is installed at the outlet of the brewing head, and the bent part is in interference fit with the second sealing ring. During slag discharge, the outer periphery of the second end of the funnel support is in interference fit with the second sealing ring.

[0022] In one embodiment, the outer peripheral wall of the funnel support is also provided with a handle, and the handle is provided with a clearance area on both sides of the funnel support, and the clearance area is disposed opposite to the side wall of the water outlet of the brewing head.

[0023] In one embodiment, the first buckle has a first guide slope on the side facing the second end of the funnel support, and the second buckle has a second guide slope on the side facing the first end of the funnel support. The guiding direction of the first guide slope is opposite to that of the second guide slope.

[0024] In one embodiment, the funnel assembly further includes a powder bowl retainer spring, which is sleeved on the outer peripheral wall of the filter bowl. The inner side of the powder bowl retainer spring is limited and abuts against the outer peripheral wall of the filter bowl, and the outer side of the powder bowl retainer spring is limited and abuts against the inner peripheral wall of the extraction chamber, so as to fix the filter bowl in the extraction chamber.

[0025] A coffee machine comprising the pressure-discharge structure described in any of the above embodiments.

[0026] Compared with the prior art, this disclosure has at least the following advantages:

[0027] The aforementioned pressure slag discharge structure features a funnel assembly whose two ends can be switched to the outlet of the brewing assembly. The funnel assembly has an extraction port, an extraction chamber, and a slag discharge port connected in sequence. The filter screen of the funnel assembly is located between the extraction chamber and the slag discharge port. During extraction, the first end of the funnel assembly is connected to the outlet of the brewing assembly, and the extraction port is connected to the outlet of the brewing assembly. During slag discharge, the second end of the funnel assembly is connected to the outlet of the brewing assembly, and the slag discharge port is connected to the outlet of the brewing assembly. This allows the user to easily discharge slag by moving the funnel assembly from the brewing assembly. The funnel assembly is removed and flipped so that the chaff outlet faces the water outlet of the brewing unit, and then the funnel assembly is reinstalled on the brewing unit. When extraction is required, the user removes the funnel assembly from the brewing unit, flips it so that the extraction outlet faces the water outlet of the brewing unit, and then reinstalls the funnel assembly on the brewing unit. Compared with the coffee machines of the prior art, the pressure chaff removal structure disclosed herein does not require removing the powder cup when switching between chaff removal and extraction modes. This makes the process of switching between extraction and chaff removal modes convenient and quick, thus making the pressure chaff removal structure highly user-friendly. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of a pressure slag discharge structure according to one embodiment;

[0030] Figure 2 for Figure 1 A partial structural schematic diagram of the pressure slag discharge structure shown;

[0031] Figure 3 for Figure 2 The diagram shows the internal structure of the pressure slag discharge structure in the extraction state.

[0032] Figure 4 for Figure 3 A partially enlarged schematic diagram of the pressure slag discharge structure is shown;

[0033] Figure 5 for Figure 2 The diagram shows the internal structure of the pressure slag discharge structure in the slag discharge state.

[0034] Figure 6 for Figure 1 Another partial structural diagram of the pressure slag discharge structure shown;

[0035] Figure 7 for Figure 6 Another perspective schematic diagram of the pressure slag discharge structure shown;

[0036] Figure 8 for Figure 1 Another partial structural schematic diagram of the pressure slag discharge structure shown;

[0037] Figure 9 for Figure 1 A partial schematic diagram of the internal structure of the pressure slag discharge structure shown.

[0038] Reference numerals: 10. Pressure slag discharge structure; 100. Cooking assembly; 110. Body; 120. Cooking head; 121. Snap-fit ​​groove; 122. Mounting groove; 122a. Second sealing ring; 123. Outlet; 124. Diverter plate; 124a. Diverter hole; 130. Mounting cavity; 200. Water pressure assembly; 210. Water pressure output pipe; 220. Pressure water pump; 230. Water pressure solenoid valve; 300. Air pressure assembly; 310. Air pressure output pipe; 320. Diaphragm pump; 330. Air pressure solenoid valve; 400. Funnel assembly Components; 410, Extraction port; 420, Extraction chamber; 421, First positioning groove; 422, Second positioning groove; 430, Slag discharge port; 440, Funnel support; 441, First buckle; 441a, First guide slope; 442, Second buckle; 442a, Second guide slope; 443, Handle; 443a, Avoidance area; 450, Filter powder bowl; 451, Filter screen; 452, First sealing ring; 453, Bend; 453a, Limiting groove; 460, Powder bowl retaining spring; 500, T-connector; 600, Connecting main pipe. Detailed Implementation

[0039] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0040] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0042] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0043] like Figures 1 to 9 As shown, one embodiment of the pressure discharge structure 10 includes a cooking assembly 100, a water pressure assembly 200, a gas pressure assembly 300, and a funnel assembly 400. The water pressure assembly 200 is disposed within the cooking assembly 100 and is used to generate high-pressure water. The water pressure output pipe 210 of the water pressure assembly 200 is connected to the outlet 123 of the cooking assembly 100. The gas pressure assembly 300 is used to generate high-pressure gas. The gas pressure output pipe 310 of the gas pressure assembly 300 is connected to the outlet 123 of the cooking assembly 100. When extraction is required, the water pressure component 200 can deliver high-pressure water through the outlet 123 of the brewing component 100 to the funnel component 400, so that the pressure churn structure 10 can extract the coffee grounds in the funnel component 400; and when churn is required, the air pressure component 300 can deliver high-pressure gas through the outlet 123 of the brewing component 100 to the funnel component 400, so that the pressure churn structure 10 can pressure churn the coffee grounds in the funnel component 400.

[0044] like Figures 1 to 9As shown, furthermore, the two ends of the funnel assembly 400 can be switched to the outlet 123 of the brewing assembly 100. The funnel assembly 400 has an extraction port 410, an extraction chamber 420, and a dregs outlet 430 connected in sequence. The filter screen 451 of the funnel assembly 400 is located between the extraction chamber 420 and the dregs outlet 430, so that the filter screen 451 can filter the coffee powder during the extraction operation. When extracting, the first end of the funnel assembly 400 is connected to the outlet 123 of the brewing assembly 100, and the extraction port 410 is connected to the outlet 123 of the brewing assembly 100. When dregs are discharged, the second end of the funnel assembly 400 is connected to the outlet 123 of the brewing assembly 100, and the dregs outlet 430 is connected to the outlet 123 of the brewing assembly 100, so that when dregs are required, the user can use the funnel to discharge the coffee powder. The funnel assembly 400 is removed from the brewing assembly 100 and flipped so that the ditch 430 faces the outlet 123 of the brewing assembly 100. Then, the funnel assembly 400 is reinstalled on the brewing assembly 100. When extraction is required, the user removes the funnel assembly 400 from the brewing assembly 100 and flips it so that the extraction port 410 faces the outlet 123 of the brewing assembly 100. Then, the funnel assembly 400 is reinstalled on the brewing assembly 100. Compared with the coffee machines of the prior art, the pressure ditch removal structure 10 disclosed herein does not require removing the powder cup when switching between ditch removal and extraction modes. Thus, the process of switching between the extraction and ditch removal modes of the pressure ditch removal structure 10 is convenient and quick, thereby making the pressure ditch removal structure 10 highly convenient to use.

[0045] In this embodiment, when extraction is required, firstly, coffee powder is placed on the filter screen 451, then the extraction port 410 of the funnel assembly 400 is oriented towards the water outlet 123 of the brewing assembly 100, and the first end of the funnel assembly 400 is installed at the water outlet 123 of the brewing assembly 100 so that the water outlet 123 of the brewing assembly 100 can communicate with the extraction port 410; then, the container for holding the coffee liquid is placed directly below the dregs outlet 430 of the funnel assembly 400, and then the water is turned on. When the pressure component 200 is turned off and the air pressure component 300 is turned off, the water pressure component 200 can deliver high-pressure water through the outlet 123 of the brewing component 100 to the extraction chamber 420 to extract the coffee powder in the extraction chamber 420. After the water and coffee powder are fully mixed and extracted, coffee liquid is formed and discharged from the residue outlet 430 through the filter holes on the filter screen 451, falling into the container for holding the coffee liquid. Finally, when the coffee in the container for holding the coffee liquid reaches the preset amount, the water pressure component 200 is turned off.

[0046] However, after extraction, the coffee grounds in the extraction chamber 420 accumulate and adhere to the filter screen 451, forming a cake-like coffee grounds. This cake-like coffee grounds can clog the filter holes on the filter screen 451, requiring the removal of the coffee grounds from the extraction chamber 420 before the next extraction. In one embodiment, during the grounds removal process, firstly, the funnel assembly 400 is removed from the brewing assembly 100; then, the funnel assembly 400 is flipped so that its grounds removal port 430 faces the water outlet 123 of the brewing assembly 100, and the second end of the funnel assembly 400 is installed at the water outlet 123 of the brewing assembly 100, allowing the water outlet 123 of the brewing assembly 100 to communicate with the grounds removal port 430; finally, a container for holding the coffee grounds is placed directly opposite the extraction port 410 of the funnel assembly 400. Next, turn on the air pressure component 300 and turn off the water pressure component 200. The air pressure component 300 can then deliver high-pressure gas through the outlet 123 of the brewing component 100 to the extraction chamber 420, so that the high-pressure gas can pass through the filter holes on the filter screen 451 and act on the coffee cake grounds that are gathered and adsorbed on the filter screen 451. Finally, the coffee cake grounds are pushed out from the extraction port 410 of the funnel component 400 by the high-pressure gas and fall into the container for holding the coffee grounds. After the grounds discharge operation is completed, turn off the air pressure component 300.

[0047] The aforementioned pressure slag discharge structure 10, with both ends of the funnel assembly 400 switchably connected to the outlet 123 of the brewing assembly 100, features an extraction port 410, an extraction chamber 420, and a slag discharge port 430 connected in sequence. The filter screen 451 of the funnel assembly 400 is located between the extraction chamber 420 and the slag discharge port 430. During extraction, the first end of the funnel assembly 400 is connected to the outlet 123 of the brewing assembly 100, and the extraction port 410 is connected to the outlet 123 of the brewing assembly 100. During slag discharge, the second end of the funnel assembly 400 is connected to the outlet 123 of the brewing assembly 100, and the slag discharge port 430 is connected to the outlet 123 of the brewing assembly 100. This allows the user to easily discharge slag by connecting the funnel assembly 400 to the outlet 123 of the brewing assembly 100. The user removes and flips the funnel assembly 400 from the brewing assembly 100 so that the ditch 430 faces the outlet 123 of the brewing assembly 100, and then reinstalls the funnel assembly 400 back onto the brewing assembly 100. When extraction is required, the user removes the funnel assembly 400 from the brewing assembly 100 and flips it so that the extraction port 410 faces the outlet 123 of the brewing assembly 100, and then reinstalls the funnel assembly 400 back onto the brewing assembly 100. Compared with the coffee machines of the prior art, the pressure ditch removal structure 10 disclosed herein does not require removing the powder cup when switching between ditch removal and extraction modes. This makes the process of switching between extraction and ditch removal modes convenient and quick, thus making the pressure ditch removal structure 10 more user-friendly.

[0048] like Figure 1 and Figure 9 As shown, in one embodiment, the water pressure assembly 200 includes a pressure water pump 220 and a water pressure solenoid valve 230. The inlet of the pressure water pump 220 is connected to the water supply structure, and the pressure water pump 220 is connected to the outlet 123 of the brewing assembly 100 through a water pressure output pipe 210, so that the pressure water pump 220 can draw water from the water supply structure into the pressure water pump 220 for pressurization to form high-pressure water, which is then delivered to the brewing assembly 100 through the water pressure output pipe 210. Solenoid valve 230 is installed on water pressure output pipe 210 to connect or disconnect water pressure output pipe 210. During the extraction operation, water pressure solenoid valve 230 is in the open state, so that pressure water pump 220 can deliver high pressure water to the outlet 123 of brewing assembly 100 through water pressure output pipe 210. The high pressure water can then enter the extraction chamber 420 through the outlet 123 of brewing assembly 100, thereby allowing the high pressure water to extract the coffee powder in the extraction chamber 420.

[0049] In this embodiment, the water supply structure can be an internal water supply structure and an external water supply structure; when the coffee machine is hot brewing, the water supply structure provides hot water, and when the coffee machine is cold brewing, the water supply structure provides cold water.

[0050] like Figure 1 and Figure 9 As shown, in one embodiment, the pressure assembly 300 includes a diaphragm pump 320 and a pressure solenoid valve 330. The diaphragm pump 320 is connected to the outlet 123 of the brewing assembly 100 through a pressure output pipe 310, so that air in the atmosphere can be drawn into the diaphragm pump 320 and compressed to form high-pressure gas. The high-pressure gas is then delivered to the outlet 123 of the brewing assembly 100 through the pressure output pipe 310, allowing the high-pressure gas to enter the extraction chamber 420 through the outlet 123 of the brewing assembly 100. The pressure solenoid valve 330 is disposed on the pressure output pipe 310 to connect or block the pressure output pipe 310. The high-pressure gas can then pass through the filter holes on the filter screen 451 and act on the coffee grounds that are collected and adsorbed on the filter screen 451, thereby causing the coffee grounds to be discharged from the extraction port 410 of the funnel assembly 400 under the push of the high-pressure gas.

[0051] like Figure 1 , Figure 3 and Figure 9As shown, in one embodiment, the brewing assembly 100 further includes a three-way pipe 500 and a connecting main pipe 600. The two ends of the connecting main pipe 600 are respectively connected to the water outlet 123 of the brewing assembly 100 and the first connecting port of the three-way pipe 500. The pressure water pump 220 is connected to the second connecting port of the three-way pipe 500 through the water pressure output pipe 210, and the diaphragm pump 320 is connected to the third connecting port of the three-way pipe 500 through the air pressure output pipe 310, so that the high-pressure water delivered by the pressure water pump 220 or the high-pressure gas delivered by the diaphragm pump 320 can be delivered to the connecting main pipe 600 through the three-way pipe 500, so that the connecting main pipe 600 can deliver the high-pressure gas or high-pressure water to the water outlet 123 of the brewing assembly 100.

[0052] like Figure 9 As shown, in this embodiment, the water pressure output pipe 210, the air pressure output pipe 310, the tee pipe 500 and the connecting main pipe 600 can be stainless steel flexible hoses, high temperature and high pressure resistant water pipes and high pressure pipes of steel grade, so that the water pressure output pipe 210, the air pressure output pipe 310, the tee pipe 500 and the connecting main pipe 600 can all have good high temperature and high pressure resistance.

[0053] like Figure 1 and Figure 9 As shown, in one embodiment, the brewing assembly 100 includes a body 110 and a brewing head 120. The outlet 123 of the brewing assembly 100 is opened in the brewing head 120. The brewing head 120 is installed and fixed on one side of the body 110 so that high-pressure gas or high-pressure water can be discharged through the outlet 123 of the brewing head 120. The water pressure assembly 200 and the air pressure assembly 300 are both disposed inside the body 110 to protect the water pressure assembly 200 and the air pressure assembly 300 and prevent damage or even destruction of the water pressure assembly 200 or the air pressure assembly 300 due to external factors, thereby extending the service life of the pressure slag discharge structure 10.

[0054] like Figure 4 and Figure 9As shown, in this embodiment, a diversion plate 124 is fixedly connected below the water outlet 123 of the brewing head 120. The surface of the diversion plate 124 is evenly provided with a plurality of diversion holes 124a. During extraction, the water outlet 123 is connected to the extraction port 410 through the diversion holes 124a, so that the high-pressure water can fall evenly into the extraction chamber 420 through the diversion holes 124a, so that the coffee powder in the extraction chamber 420 can fully contact the water and be extracted, thereby greatly improving the extraction effect of the pressure churn structure 10. During churn, the water outlet 123 is connected to the churn port 430 through the diversion holes 124a, so that the diversion holes 124a and the filter holes of the filter screen 451 can evenly disperse the high-pressure gas, and at the same time reduce the impact force and flow rate of the high-pressure gas, so that the pushing force on the cake-shaped coffee grounds in the extraction chamber 420 is more uniform, thereby allowing the high-pressure gas to push the cake-shaped coffee grounds out of the extraction port 410 more smoothly and completely.

[0055] like Figure 1 and Figure 9 As shown, in this embodiment, the body 110 and the brewing head 120 together form an installation cavity 130. The water pressure component 200, the air pressure component 300, the three-way pipe 500, and the connecting main pipe 600 are all disposed in the installation cavity 130 to protect the water pressure component 200 and the air pressure component 300, and to prevent damage or even destruction of the water pressure component 200 or the air pressure component 300 due to external factors, thereby extending the service life of the pressure dredging structure 10. The water outlet 123 is opened at the bottom of the brewing head 120 to ensure that during the extraction operation, the high-pressure water can flow smoothly into the extraction chamber 420 and extract the coffee in the extraction chamber 420. At the same time, during the dredging operation, the thrust of the high-pressure gas is in the same direction as the gravity of the coffee cake, so that the pressure dredging structure 10 can more easily discharge the coffee cake from the extraction port 410, thereby improving the dredging effect of the pressure dredging structure 10.

[0056] like Figures 1 to 8As shown, in one embodiment, the funnel assembly 400 includes a funnel support 440 and a filter press bowl 450. The two ends of the funnel support 440 are switchably connected to the outlet 123 of the cooking head 120. An extraction port 410, an extraction chamber 420, and a slag discharge port 430 are all located on the funnel support 440. The filter press bowl 450 is installed and fixed inside the extraction chamber 420. The bottom of the filter press bowl 450 is a filter screen 451, and the bottom of the filter press bowl 450 faces the extraction port 410. A first sealing ring 452 is fitted onto the outer peripheral wall of the filter press bowl 450. The inner side of the first sealing ring 452 is flush with the filter press bowl 450. The outer peripheral wall of the filter press 450 is press-fitted with the inner peripheral wall of the filter press 450, and the outer edge of the first sealing ring 452 is press-fitted with the inner peripheral wall of the filter press 450, so that the filter press 450 is fixed in the extraction chamber 420. At the same time, during the purging process, the coffee cake-shaped ground coffee blocks the filter hole at the bottom of the filter press 450, and the first sealing ring 452 seals the gap between the outer peripheral wall of the filter press 450 and the inner peripheral wall of the extraction chamber 420, so that the bottom of the filter press 450 and the bottom of the brewing head 120 together form a sealed cavity, so that the high pressure gas can push the coffee cake-shaped ground coffee in the filter press 450 out of the extraction port 410.

[0057] like Figures 3 to 4 As shown, in this embodiment, a first positioning groove 421 is also formed on the inner peripheral wall of the extraction chamber 420. The first sealing ring 452 is installed and fixed in the first positioning groove 421 so that the first sealing ring 452 can be fixed in the first positioning groove 421. This avoids the phenomenon that the first sealing ring 452 slides relative to the funnel assembly 400 due to excessive thrust on the filter press bowl 450 during the extraction or slag discharge process. This allows the first sealing ring 452 to more reliably limit and fix the filter press bowl 450 in the extraction chamber 420, thereby greatly improving the reliability of the pressure slag discharge structure 10.

[0058] like Figures 6 to 8 As shown, in one embodiment, at least one buckle protrudes from both ends of the funnel support 440. A first buckle 441 protrudes from the outer peripheral wall of the first end of the funnel support 440, and a second buckle 442 protrudes from the outer peripheral wall of the second end of the funnel support 440. The inner sidewall of the outlet 123 of the brewing head 120 is formed with a snap-fit ​​groove 121 that is adapted to both the first buckle 441 and the second buckle 442. By screwing the funnel support 440, both the first buckle 441 and the second buckle 442 can be snapped and fixed with the snap-fit ​​groove 121. This allows both ends of the funnel support 440 to be disassembled or installed and fixed to the inner sidewall of the outlet 123 of the brewing head 120 by screwing, which facilitates the disassembly or installation of the funnel support 440 and improves the ease of use of the pressure slag discharge structure 10.

[0059] like Figures 6 to 7As shown, in this embodiment, both the first buckle 441 and the second buckle 442 are integrally formed with the funnel support 440 to improve the overall compactness of the funnel support 440.

[0060] like Figures 3 to 6 As shown, in one embodiment, the opening of the filter press bowl 450 is bent outward to form a bent portion 453. The bent portion 453 and the outer periphery of the filter press bowl 450 form a limiting groove 453a. The outer periphery of the first end of the funnel support 440 abuts against the inner wall of the limiting groove 453a, so that the filter press bowl 450 is limited and fixed in the extraction chamber 420, avoiding the phenomenon of the filter press bowl 450 sliding relative to the funnel assembly 400 during extraction or slag discharge, ensuring that the pressure slag discharge structure 10 can be used normally, thereby further improving the reliability of the pressure slag discharge structure 10.

[0061] like Figures 3 to 6 As shown, in this embodiment, the mouth of the filter press bowl 450 and the extraction port 410 are on the same horizontal line so that the mouth of the filter press bowl 450 can fit tightly against the cooking head 120, ensuring good sealing between the bottom of the filter press bowl 450 and the cooking head 120 during the extraction operation, thereby further improving the extraction effect of the pressure slag discharge structure 10.

[0062] like Figures 3 to 5 As shown, in one embodiment, the inner wall of the cooking head 120 is further provided with an installation groove 122. The installation groove 122 surrounds the outlet 123 of the cooking head 120. A second sealing ring 122a is provided in the installation groove 122. The second sealing ring 122a is disposed opposite to the outer periphery of both ends of the funnel support 440. When extraction is performed, the first end of the funnel support 440 is installed at the outlet 123 of the cooking head 120, and the bent part 453 is in interference fit with the second sealing ring 122a. When slag is discharged, the outer periphery of the second end of the funnel support 440 is in interference fit with the second sealing ring 122a, so as to ensure that there is a good seal between the cooking head 120 and the filter press bowl 450 during the extraction or slag discharge process, thereby improving the extraction effect and slag discharge effect of the pressure slag discharge structure 10.

[0063] like Figures 3 to 7 As shown, in one embodiment, the outer peripheral wall of the funnel support 440 is also provided with a handle 443. The handle 443 is adjacent to both sides of the funnel support 440 and a clearance area 443a is formed. The clearance area 443a is arranged opposite to the side wall of the outlet 123 of the cooking head 120, so as to avoid the problem of difficulty in installing the funnel support 440 when the side wall of the outlet 123 of the cooking head 120 and the handle 443 are mutually obstructed during the assembly of the funnel support 440 and the cooking head 120, thereby further improving the ease of use of the pressure slag discharge structure 10.

[0064] like Figures 6 to 7 As shown, in this embodiment, the handle 443 and the funnel support 440 are integrally formed to improve the overall compactness of the funnel support 440.

[0065] like Figures 5 to 8 As shown, in one embodiment, the first buckle 441 has a first guide slope 441a on the side facing the second end of the funnel support 440, and the second buckle 442 has a second guide slope 442a on the side facing the first end of the funnel support 440. The guiding direction of the first guide slope 441a is opposite to that of the second guide slope 442a, so that the screwing direction of the first end of the funnel support 440 being screwed and fixed in the locking groove 121 by the guidance of the first guide slope 441a is consistent with the screwing direction of the second end of the funnel support 440 being screwed and fixed in the locking groove 121 by the guidance of the second guide slope 442a. This allows the user to quickly install the funnel assembly 400 onto the brewing head 120 without having to pay special attention to the screwing direction, reducing the possibility of misalignment and simplifying the installation process.

[0066] like Figures 5 to 8 As shown, in this embodiment, both the first buckle 441 and the second buckle 442 are wedge-shaped structures, so that both the first buckle 441 and the second buckle 442 can fit tightly against the inner wall of the snap-fit ​​groove 121, thereby preventing the funnel support 440 from loosening or falling off when it is installed on the brewing head 120.

[0067] like Figures 3 to 5 As shown, in one embodiment, the funnel assembly 400 further includes a powder bowl retaining spring 460, which is sleeved on the outer peripheral wall of the filter press powder bowl 450. The inner side of the powder bowl retaining spring 460 is limited and abuts against the outer peripheral wall of the filter press powder bowl 450, and the outer side of the powder bowl retaining spring 460 is limited and abuts against the inner peripheral wall of the extraction chamber 420. This is used to limit and fix the filter press powder bowl 450 in the extraction chamber 420, so as to prevent the filter press powder bowl 450 from sliding relative to the funnel assembly 400 during extraction or slag discharge, ensuring that the pressure slag discharge structure 10 can be used normally, and further improving the reliability of the pressure slag discharge structure 10.

[0068] like Figures 3 to 5As shown, in this embodiment, the inner peripheral wall of the extraction chamber 420 is also provided with a second positioning groove 422, and the powder bowl retaining spring 460 is disposed in the second positioning groove 422 so that the powder bowl retaining spring 460 can be fixed in the second positioning groove 422. This avoids the phenomenon that the powder bowl retaining spring 460 slides relative to the funnel assembly 400 due to excessive thrust on the filter press powder bowl 450 during the extraction or slag discharge process. This allows the powder bowl retaining spring 460 to more reliably confine the filter press powder bowl 450 in the extraction chamber 420, thereby further improving the reliability of the pressure slag discharge structure 10.

[0069] This disclosure also provides a coffee machine including the pressure slag removal structure 10 described in any of the above embodiments.

[0070] Compared with the prior art, this disclosure has at least the following advantages:

[0071] In the aforementioned coffee machine, the funnel assembly 400 has two ends that can be switched to the outlet 123 of the brewing assembly 100. The funnel assembly 400 has an extraction port 410, an extraction chamber 420, and a dregs outlet 430 connected in sequence. The filter 451 of the funnel assembly 400 is located between the extraction chamber 420 and the dregs outlet 430. During extraction, the first end of the funnel assembly 400 is connected to the outlet 123 of the brewing assembly 100, and the extraction port 410 is connected to the outlet 123 of the brewing assembly 100. When dregs are being removed, the second end of the funnel assembly 400 is connected to the outlet 123 of the brewing assembly 100, and the dregs outlet 430 is connected to the outlet 123 of the brewing assembly 100. This allows the user to easily remove dregs by moving the funnel assembly 400 from the brewing chamber 100. The funnel assembly 400 is removed from the brewing assembly 100 and flipped so that the dreg discharge port 430 faces the water outlet 123 of the brewing assembly 100. Then, the funnel assembly 400 is reinstalled on the brewing assembly 100. When extraction is required, the user removes the funnel assembly 400 from the brewing assembly 100 and flips it so that the extraction port 410 faces the water outlet 123 of the brewing assembly 100. Then, the funnel assembly 400 is reinstalled on the brewing assembly 100. Compared with the coffee machines of the prior art, the pressure dreg discharge structure 10 disclosed herein does not require removing the powder cup when switching between dreg discharge and extraction modes. This makes the process of switching between extraction and dreg discharge modes convenient and quick, thus making the pressure dreg discharge structure 10 more user-friendly.

[0072] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A pressure slag discharge structure, comprising; brewing components; A water pressure assembly is provided inside the brewing assembly. The water pressure assembly is used to generate high-pressure water, and the water pressure output pipe of the water pressure assembly is connected to the water outlet of the brewing assembly. Its features are, The pressure slag discharge structure also includes a pneumatic component and a funnel component. The pneumatic component is used to generate high-pressure gas, and the pneumatic output pipe of the pneumatic component is connected to the water outlet of the cooking component. The two ends of the funnel assembly can be switched to the water outlet of the brewing assembly. The funnel assembly has an extraction port, an extraction chamber and a slag discharge port connected in sequence. The filter screen of the funnel assembly is located between the extraction chamber and the slag discharge port. During extraction, the first end of the funnel assembly is connected to the outlet of the brewing assembly, and the extraction port is connected to the outlet of the brewing assembly. When slag is discharged, the second end of the funnel assembly is connected to the outlet of the cooking assembly, and the slag discharge port is connected to the outlet of the cooking assembly.

2. The pressure slag discharge structure according to claim 1, characterized in that, The water pressure assembly includes a pressure water pump and a water pressure solenoid valve. The inlet of the pressure water pump is used to connect to the water supply structure. The pressure water pump is connected to the outlet of the brewing assembly through the water pressure output pipe. The water pressure solenoid valve is installed on the water pressure output pipe to connect or disconnect the water pressure output pipe.

3. The pressure slag discharge structure according to claim 2, characterized in that, The pneumatic assembly includes a diaphragm pump and a pneumatic solenoid valve. The diaphragm pump is connected to the outlet of the brewing assembly through the pneumatic output pipe. The pneumatic solenoid valve is installed on the pneumatic output pipe to connect or disconnect the pneumatic output pipe.

4. The pressure slag discharge structure according to claim 3, characterized in that, The pressure slag discharge structure also includes a three-way pipe and a connecting main pipe. The two ends of the connecting main pipe are respectively connected to the water outlet of the cooking component and the first connecting port of the three-way pipe. The pressure water pump is connected to the second connecting port of the three-way pipe through the water pressure output pipe, and the diaphragm pump is connected to the third connecting port of the three-way pipe through the air pressure output pipe.

5. The pressure slag discharge structure according to claim 1, characterized in that, The brewing assembly includes a body and a brewing head. The water outlet of the brewing assembly is located on the brewing head, which is fixed to one side of the body. The air pressure assembly and the water pressure assembly are both located inside the body.

6. The pressure slag discharge structure according to claim 5, characterized in that, The funnel assembly includes a funnel support and a filter press bowl. The two ends of the funnel support can be switched to the water outlet of the brewing head. The extraction port, the extraction chamber, and the slag discharge port are all opened on the funnel support. The filter press bowl is installed and fixed in the extraction chamber. The bottom of the filter press bowl is the filter screen. The bottom of the filter press bowl faces the extraction port. A first sealing ring is fitted on the outer peripheral wall of the filter press bowl. The inner side of the first sealing ring is in interference fit with the outer peripheral wall of the filter press bowl, and the outer side of the first sealing ring is in interference fit with the inner peripheral wall of the filter press bowl, so that the filter press bowl is limited and fixed in the extraction chamber.

7. The pressure slag discharge structure according to claim 6, characterized in that, At least one buckle protrudes from both ends of the funnel support. A first buckle protrudes from the outer peripheral wall of the first end of the funnel support, and a second buckle protrudes from the outer peripheral wall of the second end of the funnel support. The inner side wall of the water outlet of the brewing head is formed with a snap-fit ​​groove that is adapted to both the first buckle and the second buckle. By screwing the funnel support together, both the first buckle and the second buckle can be snapped and fixed with the snap-fit ​​groove.

8. The pressure slag discharge structure according to claim 7, characterized in that, The rim of the filter press bowl bends outward to form a bend, and the bend and the outer periphery of the filter press bowl form a limiting groove. The outer periphery of the first end of the funnel support abuts against the inner wall of the limiting groove so that the filter press bowl is fixed in the extraction chamber.

9. The pressure slag discharge structure according to claim 8, characterized in that, The inner wall of the brewing head also forms an installation groove, which surrounds the outlet of the brewing head. A second sealing ring is provided within the installation groove. The second sealing ring is positioned opposite the outer periphery of both ends of the funnel support. During extraction, the first end of the funnel support is installed at the outlet of the brewing head, and the bent portion is in interference fit with the second sealing ring. During slag discharge, the outer periphery of the second end of the funnel support is in interference fit with the second sealing ring; and / or, The outer peripheral wall of the funnel support is also provided with a handle, and the handle is provided with a clearance area on both sides of the funnel support, the clearance area being disposed opposite to the side wall of the water outlet of the brewing head; and / or, The first latch has a first guiding slope on its side facing the second end of the funnel support, and the second latch has a second guiding slope on its side facing the first end of the funnel support. The guiding direction of the first guiding slope is opposite to the guiding direction of the second guiding slope; and / or, The funnel assembly also includes a powder bowl retaining spring, which is sleeved on the outer peripheral wall of the filter bowl. The inner side of the powder bowl retaining spring is limited and abuts against the outer peripheral wall of the filter bowl, and the outer side of the powder bowl retaining spring is limited and abuts against the inner peripheral wall of the extraction chamber, so as to fix the filter bowl in the extraction chamber.

10. A coffee machine, characterized in that, The pressure slag discharge structure includes any one of claims 1 to 9.

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