Brewing device and coffee brewing apparatus

By designing the detachable brewing chamber assembly and precise joints, the problem of cleaning difficulties of drip coffee machines is solved, convenient cleaning and sanitation guarantees are achieved, and user experience is improved.

WO2025138913A1PCT designated stage expired Publication Date: 2025-07-03GUANGDONG XINBAO ELECTRICAL APPLIANCES HLDG CO LTD
View PDF 6 Cites 0 Cited by

Patent Information

Application Number
PCT/CN2024/113034
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-12-25
Filing Date
2024-08-19
Publication Date
2025-07-03

AI Technical Summary

Technical Problem

The brewing device of the existing drip coffee machine cannot be easily disassembled, resulting in difficulty in cleaning and easily causing hygiene problems and food safety hazards.

Method used

A brewing device is designed in which the brewing chamber assembly is detachably installed in the installation chamber, and a liquid discharge channel is formed by the cooperation of the first joint and the second joint, and is equipped with a stool-proof component and a detection device to ensure the accuracy and stability of disassembly and assembly, and facilitate cleaning.

Benefits of technology

The detachability of the brewing chamber assembly is realized, and users can easily clean or soak, ensuring the hygiene and functional stability of the equipment, and improving the user experience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN2024113034_03072025_PF_FP_ABST
    Figure CN2024113034_03072025_PF_FP_ABST
Patent Text Reader

Abstract

Provided in the present application are a brewing device and a coffee brewing apparatus. The brewing device comprises a brewer and a brewing chamber assembly. The brewer comprises a mounting chamber and a first driving assembly arranged at the bottom of the mounting chamber, a first joint in transmission connection with the first driving assembly being provided in the mounting chamber. The brewing chamber assembly is detachably installed in the mounting chamber. The brewing chamber assembly comprises a chamber body assembly and a first plunger assembly, the first plunger assembly being sliably arranged in a brewing chamber body of the chamber body assembly. The first plunger assembly comprises a second joint docked with the first joint, the first joint and the second joint fitting each other to form a liquid outlet channel leading to the brewing chamber body. The first driving assembly is used for driving the first plunger assembly and the first joint to perform synchronous ascent and descent movements in the chamber body assembly. Such structure allows for the detachable brewing chamber assembly, aiding a user in conveniently rinsing or soaking the detached brewing chamber assembly with water.
Need to check novelty before this filing date? Find Prior Art

Description

Brewing device and coffee brewing equipment Technical Field

[0001] The present application relates to the technical field of coffee brewing, and in particular to a brewing device and a coffee brewing equipment. Background Art

[0002] There are many types of coffee machines available today. Drip coffee machines are popular among consumers for their simple structure, constant pressure brewing, and simple, reliable operation, making them ideal for home or office use. However, due to structural limitations, the contaminated brewing mechanism of current drip coffee machines cannot be completely removed for cleaning and maintenance, posing significant hygiene issues. This is particularly true regarding the problem of coffee grounds remaining in the brewing mechanism. Continuous use of the coffee machine can lead to significant amounts of coffee grounds remaining, making it difficult for users to clean the machine properly and potentially posing a food safety concern. For example, Chinese patent application number CN208610608U discloses a drip coffee machine comprising a housing, a shower head, a brewing basket, a water tank, a coffee pot, a first rotating shaft, a second rotating shaft, and a top cover. The top cover is hinged to the housing via the first rotating shaft, and one end of the shower head is hinged to the housing via the second rotating shaft. The top cover has a concave cavity at its lower portion, within which is a receiving groove. An elastic member is mounted within the receiving groove, and the elastic member has a movable groove. It can be seen that the brewing basket of the drip coffee machine cannot be easily disassembled for cleaning, and deep cleaning is impossible, resulting in a poor user experience.

[0003] Summary of the Invention

[0004] In response to the above-mentioned technical problems existing in the prior art, the present application provides a brewing device and a coffee brewing equipment, which can solve the technical problem that the brewing chamber component cannot be disassembled and cleaned.

[0005] The embodiment of the present application provides a brewing device, comprising:

[0006] The brewer comprises a mounting cavity and a first driving assembly provided at the bottom of the mounting cavity, wherein a first joint in transmission connection with the first driving assembly is provided in the mounting cavity;

[0007] The brewing chamber assembly is detachably mounted within the mounting chamber, comprising a chamber assembly and a first plunger assembly. The first plunger assembly is slidably mounted within the brewing chamber of the chamber assembly. The first plunger assembly includes a second connector that interfaces with the first connector. The first connector and the second connector cooperate to form a liquid outlet channel connected to the brewing chamber. The first drive assembly is configured to drive the first plunger assembly and the first connector to synchronously move up and down within the chamber assembly. The above structure enables the detachable brewing chamber assembly, making it convenient for the user to rinse or soak the detached brewing chamber assembly with water.

[0008] In some embodiments, the brewing chamber assembly further includes a foolproof assembly disposed at the bottom of the cavity assembly, the foolproof assembly having a locked state in which it is plugged into the inner wall of the mounting cavity, and an unlocked state in which it is spaced away from the inner wall of the mounting cavity. When the first plunger assembly moves to the bottom of the cavity assembly, it acts on the foolproof assembly, causing the foolproof assembly to switch from the locked state to the unlocked state, thereby enabling the brewing chamber assembly to be detached from the brewer. The above structure allows the first plunger assembly to be stably mounted on the brewer when it has not moved to the bottom of the cavity assembly, and can prevent the brewing chamber assembly from being incorrectly installed during cleaning and maintenance by the user, thereby preventing the brewing chamber assembly from being incorrectly installed and affecting the function of the coffee brewing device.

[0009] In some embodiments, the brewer further includes a transmission assembly, the transmission assembly including a screw structure that is transmission-connected to the first drive assembly, the first drive assembly drives the first plunger assembly and the first connector to synchronously perform lifting and lowering motions within the cavity assembly via the screw structure; the screw structure has a first end face located within the mounting cavity, the first connector and the brewing cavity assembly are both located on the first end face, and the first end face of the screw structure extends from the bottom of the brewing cavity into the brewing cavity to drive the first plunger assembly and the first connector to move. In this way, the screw structure can stably drive a plunger assembly and the first connector to synchronously perform lifting and lowering motions within the cavity assembly.

[0010] In some embodiments, the cavity assembly includes a cavity body forming the brewing cavity, and elastic mounting assemblies are respectively provided on opposite sides of the cavity body. The elastic mounting assemblies include a buckle and an elastic member. The brewer is provided with a slot, and the elastic member is used to apply a force to the buckle to engage the slot, thereby securing the cavity assembly to the brewer. This structure allows the user to attach or detach the cavity assembly to the brewer by applying force to the elastic mounting assembly, which is convenient to operate and has a stable structure.

[0011] In some embodiments, the first plunger assembly includes a filter screen and a lower plunger disposed below the filter screen, the second joint is mounted on the lower portion of the lower plunger, and concave cavities are provided on opposite sides of the lower plunger. A snap assembly is disposed within the concave cavities, and a snap assembly is disposed at the bottom of the cavity assembly. A latching portion that interacts with the snap assembly is provided to position the first plunger assembly when it moves to the bottom of the cavity assembly. The snap assembly can thus be used to maintain the first plunger assembly in position after it reaches the bottom of the cavity assembly, thereby preventing the first plunger assembly from floating upward due to the applied force.

[0012] In some embodiments, at least one detection device is disposed within the mounting cavity, the detection device being configured to detect the installation and disassembly status of the brewing chamber assembly and the brewer, and the first drive assembly being configured to operate when the brewing chamber assembly is mounted on the brewer. The aforementioned detector can accurately detect the installation and disassembly status of the brewing chamber assembly, enabling a coffee brewing device utilizing the brewing device to perform functions such as coffee powder collection, water injection, drip filtering, and slag removal only after the brewing chamber assembly is properly installed.

[0013] In some embodiments, the foolproofing assembly includes a foolproofing spring and foolproofing pins that engage with both ends of the foolproofing spring. Slots are provided on the inner wall of the mounting cavity corresponding to the foolproofing pins, and the foolproofing spring is configured to apply a force to the foolproofing pins, causing them to insert into the slots. The foolproofing pins and slots provide a stable interaction, a simple structure, and a compact layout.

[0014] In some embodiments, the anti-stupidity pin is provided with a boss, and the first plunger assembly has a retraction groove. The retraction groove is used to act on the boss when the plunger moves to the bottom of the cavity assembly, causing the bosses to relatively retract, thereby driving the anti-stupidity pin relatively close to disengage from the slot. The boss and retraction groove can stably act on the anti-stupidity pin, allowing the anti-stupidity pin to disengage from the slot. The above structure is simple and the working relationship is stable.

[0015] In some embodiments, the second connector is provided with a guide post and a guide groove, and the first connector is provided with a groove adapted to the guide post and a stopper cavity adapted to the guide groove. The guide post and guide groove enable precise docking of the first connector and the second connector, ensuring docking stability and accuracy, and preventing leakage.

[0016] The embodiment of the present application further provides a coffee brewing device, comprising the brewing device as described above. The above structure enables the brewing chamber component to be detachable, making it convenient for the user to rinse or soak the detached brewing chamber component with water.

[0017] Compared with the prior art, the beneficial effects of the embodiments of the present application are as follows: by detachably mounting the brewing chamber assembly within the mounting cavity, the brewing chamber unit is detachable, making it convenient for the user to rinse or soak the detached brewing chamber unit with water, and then reinstall the cleaned brewing chamber unit into the brewer to prepare for the next coffee brewing. In addition, the brewing chamber assembly can be further disassembled into a cavity assembly and a first plunger assembly, facilitating further deep cleaning and maintenance, thereby increasing user convenience. A liquid outlet channel can be formed between the brewer and the brewing chamber assembly through the cooperation of the first joint and the second joint for discharging brewed coffee liquid. The above structure can ensure the sealing of the liquid outlet, allowing the coffee liquid to be smoothly discharged through the liquid outlet channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. The drawings illustrate various embodiments generally by way of example and not limitation, and together with the description and claims, serve to illustrate the disclosed embodiments. Where appropriate, like reference numerals are used throughout the drawings to refer to like or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive of the embodiments of the present apparatus or method.

[0019] FIG1 is a schematic structural diagram of a brewing device according to an embodiment of the present application, wherein the brewing device is shown in an initial mode;

[0020] FIG2 is a schematic structural diagram of a brewing device according to an embodiment of the present application, wherein the brewing device is shown in a maintenance mode;

[0021] FIG3 is an exploded view of the brewing device according to an embodiment of the present application;

[0022] FIG4 is an exploded view of a brewing chamber assembly of a brewing device according to an embodiment of the present application;

[0023] FIG5 is an exploded view of the cavity assembly of the brewing device according to an embodiment of the present application;

[0024] FIG6 is an exploded view of the first plunger assembly of the brewing device according to an embodiment of the present application;

[0025] FIG7 is an exploded view of the brewing chamber assembly of the brewing device according to an embodiment of the present application from another perspective;

[0026] FIG8 is an exploded view of a brewing device according to an embodiment of the present application;

[0027] FIG9 is an exploded view of a partial structure of a brewing device of an embodiment of the present application;

[0028] FIG10 is a cross-sectional view of a brewing device according to an embodiment of the present application, wherein the brewing device is shown in a maintenance mode;

[0029] FIG11 is a cross-sectional view of a brewing device according to an embodiment of the present application, wherein the brewing device is shown in an initial mode;

[0030] FIG12 is a cross-sectional view of the brewing device according to an embodiment of the present application, wherein the brewing device is in a powder receiving mode;

[0031] FIG13 is a cross-sectional view of a brewing device according to an embodiment of the present application, wherein the brewing device is in a brewing mode;

[0032] FIG14 is a cross-sectional view of the brewing device according to an embodiment of the present application, wherein the brewing device is in a slag pushing mode;

[0033] FIG15 is a cross-sectional view of the brewing device according to an embodiment of the present application, wherein the brewing device is in a scraping mode;

[0034] FIG16 is a cross-sectional view of another section of the brewing device according to an embodiment of the present application, in which the brewing device is shown in a maintenance mode.

[0035] The components indicated by the reference numerals in the figures are:

[0036] 1. Brewing device; 101. Mounting chamber; 102. First drive assembly; 103. First connector; 104. Slot; 105. Slot; 106. Groove; 107. Positioning chamber; 2. Brewing chamber assembly; 201. Cavity assembly; 202. Brewing chamber; 203. First plunger assembly; 204. Second connector; 205. Cavity body; 206. Filter screen; 207. Lower plunger; 208. Concave cavity; 209. Spring-loaded buckle assembly; 210. Snap-fit ​​portion; 211. Retraction groove; 212. Guide column; 213. Guide groove; 214. Sealing ring; 3. Anti-foolproofing assembly; 301. Anti-foolproofing spring; 302. Anti-foolproofing pin; 303. Boss; 304. Cover plate; 4. Transmission assembly; 401. Screw structure; 402. First end face; 403. Gear assembly; 5. Elastic mounting assembly; 501. Buckle; 502. Elastic member; 6. Detection device; 601. Magnetic member; 7. Scraper; 8. Second plunger assembly. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solution of the present application, the present application is described in detail below with reference to the accompanying drawings and specific implementation methods.

[0038] The embodiment of the present application provides a brewing device. As shown in Figures 1 to 9, the brewing device includes a brewer 1 and a brewing chamber assembly 2. The brewer 1 includes a mounting chamber 101 and a first drive assembly 102 provided at the bottom of the mounting chamber 101. A first connector 103 is provided in the mounting chamber 101 and is transmission-connected to the first drive assembly 102. The brewing chamber assembly 2 is detachably mounted in the mounting chamber 101. The brewing chamber assembly 2 includes a cavity assembly 201 and a first plunger assembly 203. The first plunger assembly 203 is slidably disposed in the brewing cavity 202 of the cavity assembly 201. The first plunger assembly 203 includes a second connector 204 that docks with the first connector 103. The first connector 103 and the second connector 204 cooperate to form a liquid outlet channel connected to the brewing cavity 202. The first drive assembly 102 is used to drive the first plunger assembly 203 and the first connector 103 to synchronously perform lifting and lowering movements in the cavity assembly 201.

[0039] The brewing chamber assembly 2 has an installed state, installed in the mounting chamber 101, and a disassembled state, detached from the mounting chamber 101. When the brewing chamber assembly 2 is in the installed state, a coffee brewing device using the brewing device can perform functions such as coffee powder collection, water injection, dripping, and grounds removal. When the brewing chamber assembly 2 is in the disassembled state, the coffee brewing device using the brewing device cannot perform the above functions, thereby ensuring the safety and stability of the device operation and preventing malfunctions.

[0040] After the brewing device 1 and the brewing chamber assembly 2 are separated, they can be understood as two independent components, so that the brewing chamber assembly 2 can be fully cleaned. In addition, the disassembled brewing chamber assembly 2 only includes the cavity assembly 201 and the first plunger assembly 203, and there is no need to disassemble the first drive assembly 102 and the first joint 103 and other components, thereby simplifying the disassembled components and allowing the disassembled brewing chamber assembly 2 to be cleaned as a whole. Of course, the cavity assembly 201 and the first plunger assembly 203 can be connected in a detachable manner, so that the brewing chamber assembly 2 can be further split into the cavity assembly 201 and the first plunger assembly 203. These two components can be cleaned separately, further optimizing the cleaning effect. The cavity assembly 201 can be connected at both ends along the direction of movement of the first plunger assembly 203, so that the first plunger assembly 203 can pass through the cavity assembly 201 along its direction of movement, thereby achieving the purpose of the first plunger assembly 203 being able to be separated from the cavity assembly 201.

[0041] Optionally, the brewing device may include a second plunger assembly 8 and a scraper blade 7. The second plunger assembly 8 is disposed above the brewing chamber assembly 2 and is capable of moving in a transverse direction perpendicular to the lifting direction of the first plunger assembly 203. As shown in Figures 10 to 12 and 14, the second plunger assembly 8 is shown in a first position, in which the second plunger assembly 8 is away from the upper opening of the brewing chamber 202 of the chamber assembly 201. As shown in Figure 15, the second plunger assembly 8 is shown in a second position, in which the second plunger assembly 8 can be moved to the second position by transverse movement.

[0042] Furthermore, the second plunger assembly 8 can also move in the second position toward the upper opening of the brewing chamber 202 to cover the upper opening of the brewing chamber 202. For example, as shown in FIG13 , the second plunger assembly 8 is in the third position. The second plunger assembly 8 in the second position can move downward to cover the upper opening of the brewing chamber 202, so that the second plunger assembly 8 can move from the second position to the third position.

[0043] The scraper 7 can be arranged on the upper open end of the second plunger assembly 8 close to the brewing chamber 202. After the coffee preparation is completed, the second plunger assembly 8 can move from the first position to the second position to drive the scraper 7 to move toward the direction of the coffee grounds on the first plunger assembly 203 to push the coffee grounds out of the brewer 1.

[0044] Optionally, the first joint 103 and the second joint 204 can be connected by soft rubber or sealing rings. This application does not make any specific restrictions on this. It is sufficient to achieve a sealed connection between the first joint 103 and the second joint 204 after the brewing chamber assembly 2 is installed on the brewer 1.

[0045] Optionally, a cavity for accommodating coffee powder can be formed between the upper surface of the above-mentioned first plunger assembly 203 and the brewing cavity 202. Hot water entering the cavity can brew the coffee powder. The coffee liquid formed after brewing can be discharged outward through the liquid outlet channel formed by the first joint 103 and the second joint 204, and the coffee grounds formed after brewing will remain on the first plunger assembly 203.

[0046] Optionally, one end of the first drive component 102 connected to the first joint 103 can move up and down synchronously with the first joint 103 and the first plunger component 203 in the cavity component 201, that is, this end of the first drive component 102 can extend into or out of the cavity component 201, making the structure more compact and reasonable.

[0047] Optionally, the brewer 1 may further include a frame, on which the first drive assembly 102 and the second plunger assembly 8 are both mounted. The frame can limit the movement of the second plunger assembly 8 and can also stably mount the first drive assembly 102. After the brewing chamber assembly 2 is separated from the brewer 1, the first drive assembly 102 and the first connector 103 can remain in a state of being stably mounted on the frame.

[0048] Optionally, the stroke of the first plunger assembly 203 in the brewing cavity 202 may have an upper limit position and a lower limit position. For example, as shown in Figures 2, 10, 12, 13 and 16, the first plunger assembly 203 shown in the figures is in the lower limit position; as shown in Figures 1, 11, 14 and 15, the first plunger assembly 203 shown in the figures is in the upper limit position.

[0049] Optionally, the brewing chamber assembly 2 at the lower limit position is in a detachable state, and the brewing chamber assembly 2 at the upper limit position is in a non-detachable state, that is, the brewing chamber assembly 2 can only be disassembled when it moves to the bottom of the brewing cavity 202, and when the brewing chamber assembly 2 is not at the bottom of the brewing cavity 202, the brewing chamber assembly cannot be disassembled.

[0050] The coffee brewing device using the above-mentioned brewing device may have an initial mode, a powder receiving mode, a brewing mode, a grounds pushing mode, a grounds scraping mode, and a maintenance mode. The various modes of the coffee brewing device using the above-mentioned brewing device will be described in detail below and will not be repeated here. Among them, the brewing device shown in Figures 1 and 11 is in the initial mode; the brewing device shown in Figure 12 is in the powder receiving mode; the brewing device shown in Figure 13 is in the brewing mode; the brewing device shown in Figure 14 is in the grounds pushing mode, in which the first plunger assembly 203 pushes the coffee grounds formed after brewing upward to a position corresponding to the grounds scraping plate 7; the brewing device shown in Figure 15 is in the grounds scraping mode, in which the coffee grounds on the first plunger assembly 203 are pushed to the outside of the brewer 1 by the grounds scraping plate 7; the brewing device shown in Figures 2, 10, and 16 is in the maintenance mode.

[0051] In the maintenance mode, the first plunger assembly 203 of the brewing chamber assembly 2 can be moved to the lower limit position, and then the user can manually detach the brewing chamber assembly 2 from the brewer 1. At this time, the first joint 103 and the second joint 204 can be separated, and then the brewing chamber assembly 2 can be removed from the brewer 1 for flushing. Furthermore, the brewing chamber assembly 2 can be split into two parts, the cavity assembly 201 and the first plunger assembly 203, so as to clean them separately and achieve a better cleaning effect.

[0052] After maintenance and cleaning, the brewing chamber assembly 2 can be installed in the installation cavity 101 of the brewer 1, and the first joint 103 and the second joint 204 can be connected to form a liquid outlet channel, so that the coffee brewing device using the above-mentioned brewing device can restore the functions related to brewing, such as collecting powder, injecting water, dripping, and discharging residues after the brewing chamber assembly 2 is installed in place.

[0053] Optionally, a guide structure may be provided in the installation cavity 101, and the outer wall of the cavity assembly 201 may be provided with a guide groove 213 adapted to the guide structure to guide the cavity assembly 201 to be installed at a specified position in the installation cavity 101 to achieve the purpose of precise installation.

[0054] The present application achieves the detachable brewing chamber assembly 2 by detachably mounting the brewing chamber assembly 2 within the mounting cavity 101, making it convenient for the user to rinse or soak the detached brewing chamber assembly 2 with water, and then reinstall the cleaned brewing chamber assembly 2 on the brewer 1 to prepare for the next coffee brewing. In addition, the brewing chamber assembly 2 can be further separated into a cavity assembly 201 and a first plunger assembly 203, facilitating further in-depth cleaning and maintenance, thereby increasing user convenience. A liquid outlet channel is formed between the brewer 1 and the brewing chamber assembly 2 through the cooperation of the first joint 103 and the second joint 204 for discharging the brewed coffee liquid. The above structure can ensure the sealing of the liquid outlet, allowing the coffee liquid to be smoothly discharged through the liquid outlet channel.

[0055] In some embodiments, as shown in Figures 3, 5, and 7, the brewing chamber assembly 2 further includes a foolproof assembly 3 provided at the bottom of the cavity assembly 201. The foolproof assembly 3 has a locked state in which it is plugged into the inner wall of the mounting cavity 101, and an unlocked state in which it is away from the inner wall of the mounting cavity 101. When the first plunger assembly 203 moves to the bottom of the cavity assembly 201, it acts on the foolproof assembly 3, switching the foolproof assembly 3 from the locked state to the unlocked state, thereby enabling the brewing chamber assembly 2 to be detached from the brewer 1. The foolproof assembly 3 shown in Figure 3 is in the unlocked state.

[0056] In this way, by providing the above-mentioned fool-proof component 3, the first plunger component 203 can be detached from the brewer 1 only when it moves to the bottom of the cavity component 201, so that the first plunger component 203 can be stably installed on the brewer 1 when it has not moved to the bottom of the cavity component 201, and can prevent the brewing cavity component 2 from being incorrectly installed due to incorrect installation status during cleaning and maintenance by the user, thereby affecting the function of the coffee brewing device.

[0057] As shown in Figures 2, 10, 12, 13, and 16, the first plunger assembly 203 is in the lower limit position, and the foolproof assembly 3 is in the unlocked state. As shown in Figures 1, 11, 14, and 15, the first plunger assembly 203 is in the upper limit position, and the foolproof assembly 3 is in the locked state. The brewing chamber assembly 2 in the lower limit position is in a detachable state, and the brewing chamber assembly 2 in the upper limit position is in a non-detachable state. The foolproof assembly 3 allows the brewing chamber assembly 2 to be removed only when it is in a specified position, which not only facilitates cleaning of the brewing chamber assembly 2, but also increases the installation stability of the brewing chamber assembly 2.

[0058] When the first plunger assembly 203 moves above the bottom of the cavity assembly 201 , the foolproof assembly 3 can be understood as being kept in a locked state to increase the installation stability of the first plunger assembly 203 .

[0059] Alternatively, the brewing cavity 202 of the cavity assembly 201 can be understood as a through cavity, which passes through the upper and lower ends of the cavity assembly 201. The foolproof assembly 3 has an action portion corresponding to the through cavity, and when the first plunger assembly 203 moves to the bottom of the cavity assembly 201, it can act on the action portion to switch the foolproof assembly 3 from a locked state to an unlocked state.

[0060] In some embodiments, as shown in Figures 3 and 9 to 16, the brewer 1 also includes a transmission assembly 4, which includes a screw structure 401 that is transmission-connected to the first drive assembly 102. The first drive assembly 102 drives the first plunger assembly 203 and the first joint 103 to synchronously perform lifting and lowering movements in the cavity assembly 201 through the screw structure 401; the screw structure 401 has a first end face 402 located in the mounting cavity 101, and the first joint 103 and the brewing cavity assembly 2 are both provided on the first end face 402. The first end face 402 of the screw structure 401 extends from the bottom of the brewing cavity 202 into the brewing cavity 202 to drive the first plunger assembly 203 and the first joint 103 to move.

[0061] In this way, by arranging both the first plunger assembly 203 and the first connector 103 on the first end surface 402 of the screw structure 401, the screw structure 401 can stably drive the first plunger assembly 203 and the first connector 103 to synchronously move up and down within the chamber assembly 201. Furthermore, one end of the screw structure 401 can be simultaneously extended into the brewing chamber 202 along with the first plunger assembly 203, making the structural layout more compact and reasonable, and greatly reducing the size of the detachable brewing chamber assembly 2.

[0062] Optionally, as shown in FIG. 9 , the transmission assembly 4 may further include a gear assembly 403 , and the first driving assembly 102 may drive the screw structure 401 to stably perform lifting motions via the gear assembly 403 .

[0063] Specifically, the gear assembly 403 may include a driving wheel and a driven wheel in a transmission connection. The driving wheel is connected to the output shaft of the first drive assembly 102, and the driven wheel rotates under the driving wheel. The driven wheel can be configured as a screw gear that is rotatably mounted outside the screw structure 401, so that the rotation of the screw gear drives the screw structure 401 to move up and down.

[0064] Optionally, the first joint 103 may be mounted on the first end surface 402 of the screw structure 401 in a detachable connection manner.

[0065] In some embodiments, as shown in Figures 1 to 5, the cavity assembly 201 includes a cavity body 205 forming a brewing cavity 202, and elastic mounting components 5 are respectively provided on opposite sides of the cavity body 205. The elastic mounting component 5 includes a buckle 501 and an elastic member 502. A slot 104 is provided on the brewer 1, and the elastic member 502 is used to apply a force to the buckle 501 to make it engage with the slot 104, so as to limit the cavity assembly 201 to the brewer 1.

[0066] The above structure allows the user to install or remove the cavity assembly 201 from the brewer 1 by applying force to the elastic mounting assembly 5, which is easy to operate and has a stable structure.

[0067] Optionally, the buckle 501 can be relatively close to or away from the cavity body 205, and the elastic member 502 is used to apply a force to the buckle 501 to move the buckle 501 away from the cavity body 205, so that the buckle 501 can be stably engaged with the slot 104. When the user applies force to the buckle 501, the buckle 501 can be moved toward the cavity body 205, so that the buckle 501 can be away from the slot 104, thereby achieving the purpose of unlocking the slot 104 and the buckle 501, and the cavity assembly 201 can be removed from the brewer 1.

[0068] The elastic mounting components 5 are arranged on opposite sides of the cavity body 205, so that the user can press the left and right sides of the cavity body 205 at the same time, which increases the convenience of user operation.

[0069] In some embodiments, as shown in Figures 1 to 6 and Figure 16, the first plunger assembly 203 includes a filter screen 206 and a lower plunger 207 arranged below the filter screen 206, the second joint 204 is installed at the lower part of the lower plunger 207, and concave cavities 208 are provided on opposite sides of the lower plunger 207. A snap assembly 209 is provided in the concave cavity 208, and a clamping portion 210 that interacts with the snap assembly 209 is provided at the bottom of the cavity assembly 201 to position the first plunger assembly 203 that moves to the bottom of the cavity assembly 201.

[0070] In this way, the first plunger assembly 203 can be moved to the bottom of the cavity assembly 201 and maintained at this position through the spring-loaded structure, thereby avoiding the problem of the first plunger assembly 203 floating upward due to the force. Moreover, when the brewing cavity assembly 2 is installed on the brewer 1, the force of the spring-loaded assembly 209 and the clamping portion 210 at the bottom of the cavity bottom assembly can ensure that the second joint 204 of the brewing cavity assembly 2 and the first joint 103 in the mounting cavity 101 are aligned, thereby ensuring the effectiveness of the liquid outlet channel.

[0071] Optionally, as shown in FIG6 , a sealing ring 214 may be sleeved on the outer wall of the lower plunger 207 to ensure a sealed connection between the lower plunger 207 and the brewing chamber 202. The sealing ring 214 generates a force that causes the first plunger assembly 203 to float when the first plunger assembly 203 moves to the bottom of the chamber assembly 201. Thus, the provision of the snap assembly 209 and the clamping portion 210 enables the first plunger assembly 203 to be stably maintained at the bottom of the chamber assembly 201.

[0072] Optionally, the snap assembly 209 may include a spring and a protruding piece that can move toward the direction of the brewing cavity 202 under the action of the spring, and the protruding piece can be engaged with the engaging portion 210 .

[0073] Optionally, the second connector 204 may be detachably mounted on the bottom of the lower plunger 207 .

[0074] In some embodiments, as shown in FIG10 , at least one detection device 6 is provided in the installation cavity 101. The detection device 6 is used to detect the installation and disassembly status of the brewing chamber assembly 2 and the brewer 1. The first driving assembly 102 is used to operate when the brewing chamber assembly 2 is installed on the brewer 1. The above-mentioned detector can accurately detect the installation and disassembly status of the brewing chamber assembly 2, so that after the brewing chamber assembly 2 is properly installed, the coffee brewing device using the brewing device can perform functions such as powder collection, water injection, drip filtering, and slag removal.

[0075] Optionally, the above-mentioned detection device 6 can be constructed as a Hall sensing device, and a magnetic part 601 can be provided on the outer wall of the cavity assembly 201. When the brewing cavity assembly 2 is installed in place in the installation cavity 101, the Hall sensing device will sense the magnetic part 601 on the outer wall of the cavity assembly 201 to generate an instruction that the brewing cavity assembly 2 is installed in place.

[0076] In some embodiments, as shown in Figures 3, 5, and 7, the foolproof assembly 3 includes a foolproof spring 301 and foolproof pins 302 that act on both ends of the foolproof spring 301. Slots 105 are provided on the inner wall of the mounting cavity 101 corresponding to the foolproof pins 302. The foolproof spring 301 is used to apply a force to the foolproof pins 302 to insert them into the slots 105. The above-mentioned foolproof pins 302 and slots 105 have a stable working relationship, a simple structure, and a compact layout.

[0077] Optionally, the foolproofing component 3 may further include a cover plate 304 mounted on the bottom of the cavity component 201 , and the foolproofing spring 301 and the foolproofing pin 302 are provided on the cover plate 304 .

[0078] In some embodiments, as shown in Figures 5 and 7, the anti-stupidity pin 302 is provided with a boss 303, and the first plunger assembly 203 has a retraction groove 211. The retraction groove 211 is used to act on the boss 303 when the first plunger assembly 203 moves to the bottom of the cavity assembly 201, causing the boss 303 to relatively retract, thereby driving the anti-stupidity pin 302 to relatively approach and disengage from the slot 105. The boss 303 and the retraction groove 211 can stably act on the anti-stupidity pin 302, allowing the anti-stupidity pin 302 to disengage from the slot 105. The above structure is simple and the working relationship is stable.

[0079] Optionally, the above-mentioned gathering groove 211 can be constructed as an eight-shaped groove, which has two through grooves, and the two channels have one end close to each other and one end away from each other. When the first plunger assembly 203 moves to the bottom of the cavity assembly 201, the boss 303 will be stuck into the through groove from the end away from the eight-shaped groove, and then move toward the end close to the eight-shaped groove, thereby driving the two anti-stupid pins 302 to be relatively close to each other, so as to move in the direction of disengaging from the slot 105.

[0080] In some embodiments, as shown in Figures 3 and 6, the second connector 204 is provided with a guide post 212 and a guide groove 213, and the first connector 103 is provided with a groove 106 adapted to the guide post 212, and a limiting cavity 107 adapted to the guide groove 213. The guide post 212 and guide groove 213 enable the first connector 103 and the second connector 204 to be precisely docked, ensuring docking stability and accuracy of the first connector 103 and the second connector 204, and preventing leakage.

[0081] The following describes in detail the various modes of a coffee brewing device employing the aforementioned brewing apparatus. As shown in Figures 1 and 11, in the initial mode, the second plunger assembly 8 is at the far left end, and the first plunger assembly 203 is at the upper end of the chamber assembly 201. This means that the second plunger assembly 8 is in the first position, and the first plunger assembly 203 is at the upper limit position. The control panel of the coffee brewing device can receive preparation instructions from the user to brew coffee. After the initial mode ends, the device enters the powder receiving mode. At this point, as shown in Figure 12, the first plunger assembly 203 moves to the lower limit position, allowing the coffee brewing device to activate its grinder and begin grinding. The ground coffee powder is then discharged into the brewing chamber 202 of the chamber assembly 201, above the first plunger assembly 203.

[0082] As shown in FIG13 , the coffee brewing device then switches from the powder receiving mode to the brewing mode, with the second plunger assembly 8 moving sequentially from the first position to the second position and the third position to seal the upper opening of the brewing chamber 202. The water pump of the coffee brewing device can then pump water into the boiler. The hot water discharged from the boiler is sprayed into the brewing chamber 202 via the second plunger assembly 8. When the water reaches a set volume, the water pump stops, and the air pump of the coffee brewing device blows air into the brewing chamber 202 via the second plunger assembly 8. Since the upper portion of the brewing chamber 202 is sealed at this time, the continuous inflow of hot water and a large amount of water vapor will generate a certain pressure (e.g., approximately 0.6 bar) in the chamber, which accelerates the dripping of coffee, thereby shortening the time it takes to make drip coffee.

[0083] As shown in Figures 14 and 15 , after the brewing mode ends, the machine enters the grounds pushing mode. At this point, the second plunger assembly 8 returns to the first position, and the first plunger assembly 203 moves to its upper limit. Then, in the grounds pushing mode, the second plunger assembly 8 moves from the first position to the second position, pushing the coffee grounds to the right, thereby achieving automatic grounds discharge. The machine then returns to the initial mode for the next brewing session.

[0084] The maintenance mode of the coffee brewing device using the above brewing device may include a daily cleaning maintenance mode and a deep cleaning maintenance mode.

[0085] In the daily cleaning and maintenance mode, since the first plunger assembly 203 of the brewing device is initially at the top of the cavity, that is, the upper limit position, you can directly wipe the first plunger assembly 203 and the scraper 7 with a clean rag or paper towel to clean the remaining coffee grounds, and then you can click the cleaning button on the control panel of the coffee brewing device to perform an automatic cleaning. That is, there is no need to disassemble the brewing cavity assembly 2 for cleaning during daily cleaning and maintenance.

[0086] In deep cleaning maintenance mode, the user can click the maintenance button on the control panel of the coffee brewing device, and the first drive assembly 102 will drive the screw structure 401 to move, causing the first plunger assembly 203 to move to the bottom of the chamber assembly 201. Then, the user can pinch the elastic mounting assembly 5 on the chamber assembly 201 with one hand, causing the buckle 501 of the elastic mounting assembly 5 to retract, thereby allowing the brewing chamber assembly 2 to detach from the brewer 1. The brewing chamber assembly 2 can be directly pulled out in a straight line away from the brewer 1 to separate the brewing chamber assembly 2 from the water pipe of the brewer 1, that is, the first connector 103 and the second connector 204 are separated. The brewing chamber assembly 2 can then be removed for rinsing and cleaning. Furthermore, the brewing chamber assembly 2 can be disassembled into the chamber assembly 201 and the first plunger assembly 203. This allows cleaning not only the brewing chamber 202 of the chamber assembly 201, but also the sealing ring 214 of the first plunger assembly 203, achieving a better cleaning effect.

[0087] After cleaning the brewing chamber assembly 2 separately, it is only necessary to place the brewing chamber assembly 2 on the top plane of the first joint 103 and roughly align it. Under the action of the guiding structure in the installation cavity 101, the brewing chamber assembly 2 is automatically guided and aligned when pushed in, and the first joint 103 and the second joint 204 can be accurately plugged in. At the same time, the coffee brewing device will also detect that the brewing chamber assembly 2 has been installed in place through the detection device 6, and the coffee brewing device's functions such as powder receiving, water injection, drip filtering, and slag discharge will be restored in time.

[0088] An embodiment of the present application further provides a coffee brewing device, which includes the brewing device as described above.

[0089] The present application achieves the detachable brewing chamber assembly 2 by detachably mounting the brewing chamber assembly 2 within the mounting cavity 101, making it convenient for the user to rinse or soak the detached brewing chamber assembly 2 with water, and then reinstall the cleaned brewing chamber assembly 2 on the brewer 1 to prepare for the next coffee brewing. In addition, the brewing chamber assembly 2 can be further separated into a cavity assembly 201 and a first plunger assembly 203, facilitating further in-depth cleaning and maintenance, thereby increasing user convenience. A liquid outlet channel is formed between the brewer 1 and the brewing chamber assembly 2 through the cooperation of the first joint 103 and the second joint 204 for discharging the brewed coffee liquid. The above structure can ensure the sealing of the liquid outlet, allowing the coffee liquid to be smoothly discharged through the liquid outlet channel.

[0090] The above embodiments are merely exemplary embodiments of the present application and are not intended to limit the present application. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and scope of protection of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present application.

Claims

1. A brewing device, characterized in that, include: A brewer (1), comprising a mounting cavity (101) and a first driving assembly (102) arranged at the bottom of the mounting cavity (101); a first joint (103) drivingly connected to the first driving assembly (102) is arranged in the mounting cavity (101); A brewing chamber assembly (2) is detachably mounted in the mounting chamber (101), the brewing chamber assembly (2) comprising a chamber assembly (201) and a first plunger assembly (203), the first plunger assembly (203) being slidably mounted in a brewing chamber (202) of the chamber assembly (201), the first plunger assembly (203) comprising a second joint (204) docked with the first joint (103), the first joint (103) and the second joint (204) cooperating to form a liquid outlet channel connected to the brewing chamber (202), the first driving assembly (102) being used to drive the first plunger assembly (203) and the first joint (103) to synchronously perform lifting and lowering movements in the chamber assembly (201).

2. The brewing device according to claim 1, wherein The brewing chamber assembly (2) further comprises an anti-foolproof assembly (3) arranged at the bottom of the cavity assembly (201), the anti-foolproof assembly (3) having a locked state in which it is plugged into the inner wall of the mounting cavity (101), and an unlocked state in which it is away from the inner wall of the mounting cavity (101), and the first plunger assembly (203) acts on the anti-foolproof assembly (3) when it moves to the bottom of the cavity assembly (201), so that the anti-foolproof assembly (3) switches from the locked state to the unlocked state, so that the brewing chamber assembly (2) can be detached from the brewer (1).

3. The brewing device according to claim 1, wherein, The brewing device (1) further comprises a transmission assembly (4), wherein the transmission assembly (4) comprises a screw structure (401) transmission-connected to the first driving assembly (102), and the first driving assembly (102) drives the first plunger assembly (203) and the first joint (103) to synchronously perform lifting and lowering movements in the cavity assembly (201) via the screw structure (401); The screw rod structure (401) has a first end surface (402) located in the installation cavity (101); the first joint (103) and the brewing cavity assembly (2) are both arranged on the first end surface (402); the first end surface (402) of the screw rod structure (401) extends from the bottom of the brewing cavity (202) into the brewing cavity (202) to drive the first plunger assembly (203) and the first joint (103) to move.

4. The brewing device according to claim 1, wherein The cavity assembly (201) includes a cavity body (205) formed with the brewing cavity (202). Elastic mounting components (5) are respectively provided on opposite sides of the cavity body (205). The elastic mounting component (5) includes a buckle (501) and an elastic member (502). A slot (104) is provided on the brewer (1). The elastic member (502) is configured to apply a force to the buckle (501) to cause it to engage with the slot (104), so as to limit the cavity assembly (201) to the brewer (1).

5. The brewing device according to claim 1, characterized in that The first plunger assembly (203) includes a filter screen (206) and a lower plunger (207) provided below the filter screen (206). The second joint (204) is installed at the lower part of the lower plunger (207). Concave cavities (208) are provided on opposite sides of the lower plunger (207). A snap component (209) is provided in the concave cavity (208). A latching portion (210) that interacts with the snap component (209) is provided at the bottom of the cavity assembly (201), so as to position the first plunger assembly (203) that moves to the bottom of the cavity assembly (201).

6. The brewing device according to claim 1, characterized in that At least one detection device (6) is provided in the installation cavity (101). The detection device (6) is configured to detect the disassembly and assembly state of the brewing cavity assembly (2) and the brewer (1). The first driving component (102) is configured to operate when the brewing cavity assembly (2) is installed on the brewer (1).

7. The brewing device according to claim 2, characterized in that, The anti-fooling component (3) includes an anti-fooling spring (301) and anti-fooling pins (302) respectively acting on both ends of the anti-fooling spring (301). A slot (105) is provided on the inner wall of the installation cavity (101) corresponding to the anti-fooling pin (302). The anti-fooling spring (301) is configured to apply a force to the anti-fooling pin (302) to cause it to insert into the slot (105).

8. The brewing device according to claim 7, wherein A convex post (303) is provided on the anti-fooling pin (302). The first plunger assembly (203) has a converging groove (211). The converging groove (211) is configured to act on the convex post (303) when moving to the bottom of the cavity assembly (201), causing the convex post (303) to converge relatively, so as to drive the anti-fooling pin (302) to move relatively closer to disengage from the slot (105).

9. The brewing device according to claim 1, characterized in that A guiding post (212) and a guiding groove (213) are provided on the second joint (204). A groove (106) adapted to the guiding post (212) and a limiting cavity (107) adapted to the guiding groove (213) are provided on the first joint (103).

10. A coffee brewing device, characterized in that, Including the brewing device according to any one of claims 1 to 9.

Citation Information

Patent Citations

  • Coffee brewing system convenient to clean and coffee machine

    CN116548816A

  • Drip filter type coffee brewing device and drip filter type coffee machine

    CN116584810A

  • Brewing device and coffee brewing equipment

    CN117752219A

  • Brewing device structure of coffee machine

    CN206080186U

  • Coffee machine and brewing assembly for a coffee machine

    US20130047862A1