Combined coffee extraction device
By designing a combined coffee extraction device, a closed extraction system is achieved using a booster pump and a solenoid valve, solving the problems of coffee powder leakage and inconvenient cleaning, and improving coffee making efficiency and taste.
Patent Information
- Application Number
- CN202520421738.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-12
AI Technical Summary
In existing coffee extraction devices, coffee grounds are prone to leakage, and the complex connections of the components make cleaning inconvenient, affecting extraction efficiency and taste.
A combined coffee extraction device was designed, comprising an extraction support, a coffee powder container, and a hot water supply structure. It utilizes a booster pump and a solenoid valve to achieve closed extraction of coffee powder, and a sealed base plate and buffer block structure to ensure smooth discharge of coffee liquid.
It simplifies the operation process, improves coffee making efficiency, enhances coffee extraction, improves the taste and flavor of coffee, and is easy to clean.
Smart Images

Figure CN223886677U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coffee extraction technology, specifically to a combined coffee extraction device. Background Technology
[0002] Coffee is a popular beverage, and its extraction process is a crucial step in coffee making. Coffee extraction refers to the process where water, when poured over coffee grounds, removes some of the soluble substances from the coffee powder. Currently, a Chinese patent (authorization announcement number CN221616793U) discloses a combined coffee extraction device. This patent technology discloses a combined coffee extraction device comprising: a base with a water tank for holding extraction water on its top; an extraction box for extracting coffee, fixedly mounted on the base; a pull-out filter box for filtering coffee liquid, slidably mounted within the extraction box; a faucet for controlling the flow of coffee liquid, fixedly connected to the extraction box; a detachable collection box for collecting overflow liquid, mounted on the base, and equipped with a detachable mesh plate; an electric heating block for heating water, located within the water tank; and a pumping mechanism for pumping hot water, mounted on the base. This utility model provides a combined coffee extraction device with the advantages of easy cleaning and convenient operation. This patented technology solves the problem that traditional coffee extraction equipment usually consists of multiple components, such as a kettle, coffee powder hopper, extractor, and heater. Connecting and assembling these components requires certain skills and experience; otherwise, leaks or powder leakage are likely to occur. At the same time, the components are inconvenient to disassemble and clean.
[0003] However, in the existing technology, coffee powder is usually placed in a container with a filter when it is extracted with hot water. However, the powdered coffee powder tends to leak out of the filter, so the problem of coffee powder leakage in the existing technology needs to be solved.
[0004] Therefore, those skilled in the art have provided a combined coffee extraction device to solve the problems mentioned in the background art. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides:
[0006] A combined coffee extraction device includes: an extraction support; a combined extraction structure is installed on the extraction support, and the combined extraction structure includes an assembly frame fixedly assembled on the extraction support, and a snap-fit groove is provided inside the assembly frame, and an inner groove is provided inside the snap-fit groove.
[0007] The coffee powder holder is movably disposed inside the card slot, and the bottom inner wall of the coffee powder holder is provided with several buffer slots. Buffer blocks are movably disposed inside the buffer slots, and several return springs are assembled inside the buffer blocks and buffer slots.
[0008] The bottom of the buffer block is fixed with a closed base plate that is in sealed contact with the coffee powder container.
[0009] Preferably, the bottom of the assembly frame is sealed with an extraction mixing cylinder, and the bottom end of the extraction mixing cylinder is connected to a feed pipe.
[0010] A manual valve is installed on the feed pipe.
[0011] Preferably, the coffee powder container has an outer side plate that is fixedly and detachably snapped into the inner side of the inner groove, and the coffee powder container is also equipped with a filter screen for filtering coffee powder.
[0012] Preferably, a hot water supply structure is placed on the extraction support, and the hot water supply structure includes a kettle body, with a sealing cap hinged to the top of the kettle body.
[0013] The kettle body is provided with a power supply contact ring at the bottom, and the extraction bracket is equipped with a power supply contact ring that is in electrical contact with the power supply contact ring.
[0014] The extraction support is detachably equipped with a water collection box for collecting splashed water.
[0015] Preferably, a booster pump is fixedly installed on the side of the kettle body, and an inner tube handle is connected through the booster air port of the booster pump, and the top of the inner tube handle is connected through to the inside of the kettle body.
[0016] Preferably, a connecting pipe is provided through the side of the kettle body, and a solenoid valve is installed between the connecting pipe and the kettle body.
[0017] Preferably, the outer side of the connecting pipe is disassembled and sealed with a sealing tube, and the end of the sealing tube away from the connecting pipe is connected to the assembly frame.
[0018] A controller is installed on the front side of the extraction support.
[0019] The technical effects and advantages of this utility model are as follows:
[0020] This invention allows for simple extraction by placing water in the kettle, heating the coffee powder, attaching the coffee powder container to the appropriate position, and then starting the booster pump and solenoid valve. The operation is simple, reducing the complex coffee-making process and improving efficiency.
[0021] This invention uses a booster pump to pressurize the kettle, allowing hot water to enter the coffee powder container more forcefully for extraction. This helps to fully extract the effective components from the coffee powder, improving the taste and flavor of the coffee.
[0022] This invention utilizes the pressure exerted on the sealed bottom plate when hot water enters the coffee powder container, causing the sealed bottom plate to descend and allowing the extracted coffee liquid to flow into the extraction mixing cylinder through the gaps. This structural design ensures that the coffee powder is in a relatively enclosed space during extraction, which is conducive to the extraction process, and also allows the extracted coffee liquid to be discharged smoothly. The whole process is smooth and continuous, and no additional complicated operations are required to collect the coffee liquid. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of a combined coffee extraction device provided in this application;
[0024] Figure 2 This is a schematic diagram of the side structure of a combined coffee extraction device provided in this application;
[0025] Figure 3 This is a schematic diagram of the disassembled structure of a combined coffee extraction device provided in this application;
[0026] Figure 4 This is a schematic diagram of the combined extraction structure in a combined coffee extraction device provided in this application;
[0027] Figure 5 This is a schematic diagram of the hot water supply structure in a combined coffee extraction device provided in this application.
[0028] In the picture:
[0029] 1. Extraction support;
[0030] 2. Combined extraction structure; 201. Assembly frame; 202. Snap-fit groove; 203. Inner groove; 204. Extraction mixing cylinder; 205. Feed pipe; 206. Hand valve; 207. Coffee powder holder; 208. Outer panel; 209. Filter screen; 210. Buffer groove; 211. Buffer block; 212. Return spring; 213. Enclosed bottom plate;
[0031] 3. Hot water supply structure; 301. Kettle body; 302. Sealing cap; 303. Booster pump; 304. Inner pipe handle; 305. Connecting pipe; 306. Solenoid valve;
[0032] 4. Water receiving box; 5. Controller; 6. Sealing pipe. Detailed Implementation
[0033] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The examples of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.
[0034] For examples, please refer to Figures 1-5 This embodiment provides a combined coffee extraction device, including: an extraction support 1; a combined extraction structure 2 is installed on the extraction support 1, and the combined extraction structure 2 includes an assembly frame 201 fixedly assembled on the extraction support 1, and the assembly frame 201 has a snap-fit groove 202 inside, and an inner groove 203 is formed inside the snap-fit groove 202; a coffee powder placement box 207 is movably disposed inside the snap-fit groove 202, and a plurality of buffer grooves 210 are formed on the bottom inner side wall of the coffee powder placement box 207, a buffer block 211 is movably disposed inside the buffer groove 210, and a plurality of return springs 212 are assembled inside the buffer block 211 and the buffer groove 210.
[0035] The bottom end of the buffer block 211 is fixed with a closed bottom plate 213 that is in sealed contact with the coffee powder container 207; the bottom of the assembly frame 201 is sealed with an extraction mixing cylinder 204, and the bottom end of the extraction mixing cylinder 204 is connected to a feed pipe 205; a hand valve 206 is installed on the feed pipe 205.
[0036] The coffee powder container 207 is externally fixed to the outer side plate 208 which is detachably snapped into the inner side groove 203, and the coffee powder container 207 is also equipped with a filter screen 209 for filtering coffee powder.
[0037] A hot water supply structure 3 is placed on the extraction support 1, and the hot water supply structure 3 includes a hot water kettle body 301. A sealing cover 302 is hinged to the top of the hot water kettle body 301. A power supply contact ring is provided at the bottom of the hot water kettle body 301, and a power supply contact ring that is electrically in contact with the power supply contact ring is installed on the extraction support 1. A water collection box 4 for collecting splashed water is detachably assembled on the extraction support 1.
[0038] A booster pump 303 is fixedly installed on the side of the kettle body 301, and an inner tube handle 304 is connected through the booster air port of the booster pump 303. The top of the inner tube handle 304 is connected through to the inside of the kettle body 301. A connecting pipe 305 is connected through to the side of the kettle body 301, and a solenoid valve 306 is installed between the connecting pipe 305 and the kettle body 301.
[0039] The outer side of the connecting pipe 305 is disassembled and sealed with a sealing pipe 6, and the end of the sealing pipe 6 away from the connecting pipe 305 is connected to the assembly frame 201; a controller 5 is installed on the front side of the extraction bracket 1.
[0040] According to the above embodiments, the working principle of this invention is as follows:
[0041] After water is placed inside the kettle body 301 of the hot water supply structure 3, the water is heated by the kettle body 301, coffee powder is placed inside the coffee powder container 207, and the coffee powder container 207 is snapped into the inner groove 203 via the outer plate 208.
[0042] Start the booster pump 303. After the booster pump 303 starts, it pressurizes the air and discharges it into the kettle body 301. At the same time, the solenoid valve 306 is opened. The opening of the solenoid valve 306 allows the hot water inside the kettle body 301 to be discharged into the sealing tube 6 through the connecting pipe 305. The sealing tube 6 then uses the hot water to extract the coffee powder inside the coffee powder container 207 and discharges it into the extraction mixing cylinder 204 to complete the extraction process of the coffee powder.
[0043] When hot water enters the coffee powder container 207, it applies pressure to the closed bottom plate 213. The closed bottom plate 213 stretches the return spring 212 mounted on the buffer block 211, causing the closed bottom plate 213 to descend to the inside of the extraction mixing cylinder 204. This allows the extracted coffee liquid to flow into the inside of the extraction mixing cylinder 204 through the gap between the closed bottom plate 213 and the coffee powder container 207.
[0044] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0045] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A combined coffee extraction device, characterized in that, include: Extraction support (1); The extraction support (1) is equipped with a combined extraction structure (2), and the combined extraction structure (2) includes an assembly frame (201) fixedly assembled on the extraction support (1), and the assembly frame (201) has a snap-fit groove (202) inside, and an inner groove (203) is opened inside the snap-fit groove (202). The coffee powder container (207) is movably disposed inside the card slot (202), and the coffee powder container (207) has several buffer slots (210) on its bottom inner sidewall. The buffer slots (210) are movably disposed inside the buffer blocks (211), and the buffer blocks (211) and the buffer slots (210) are equipped with several return springs (212). The bottom end of the buffer block (211) is fixed with a closed bottom plate (213) that is in sealed contact with the coffee powder container (207).
2. The combined coffee extraction device according to claim 1, characterized in that, The bottom of the assembly frame (201) is sealed with an extraction mixing cylinder (204), and the bottom end of the extraction mixing cylinder (204) is connected to a feed pipe (205).
3. The combined coffee extraction device according to claim 1, characterized in that, The coffee powder container (207) is externally fixed and detachably snapped into the outer side plate (208) inside the inner side groove (203), and the coffee powder container (207) is also equipped with a filter screen (209) for filtering coffee powder.
4. The combined coffee extraction device according to claim 1, characterized in that, A hot water supply structure (3) is placed on the extraction support (1), and the hot water supply structure (3) includes a hot water kettle body (301), and a sealing cap (302) is hinged to the top of the hot water kettle body (301).
5. A combined coffee extraction device according to claim 4, characterized in that, A booster pump (303) is fixedly installed on the side of the kettle body (301), and an inner tube handle (304) is connected through the booster air hole of the booster pump (303), and the top of the inner tube handle (304) is connected through to the inside of the kettle body (301).
6. A combined coffee extraction device according to claim 5, characterized in that, A connecting pipe (305) is connected through the side of the kettle body (301), and a solenoid valve (306) is installed between the connecting pipe (305) and the kettle body (301).
7. A combined coffee extraction device according to claim 6, characterized in that, The outer side of the connecting pipe (305) is disassembled and sealed with a sealing pipe (6), and the end of the sealing pipe (6) away from the connecting pipe (305) is connected to the assembly frame (201).
Citation Information
Patent Citations
Combined coffee extraction device
CN221616793U