Portable gas heating coffee extraction pot
The portable gas-fired coffee maker uses a gas stove to heat water and steep coffee grounds, solving the problems of power limitations and unstable heating in portable coffee machines, and enabling efficient and convenient coffee making in outdoor environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG LEMA TECH CO LTD
- Filing Date
- 2025-02-28
- Publication Date
- 2026-05-26
Smart Images

Figure CN224269017U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coffee maker technology, specifically to a portable gas-fired heated coffee maker. Background Technology
[0002] A coffee maker is a device used to make coffee liquid. It releases the aromatic substances and soluble components in coffee beans through different principles (soaking, dripping, pressurization, etc.).
[0003] I. Limitations of traditional coffee extraction tools:
[0004] Traditional coffee extraction relies heavily on large, stationary coffee machines. These machines are bulky, require a stable power supply and complex installation procedures, and are mostly used in cafes and restaurants. They are not suitable for outdoor activities, travel, or fieldwork, thus limiting coffee lovers' ability to enjoy coffee anytime, anywhere.
[0005] II. Shortcomings of existing portable coffee extraction tools:
[0006] While portable coffee extraction devices such as manual coffee presses and French presses exist on the market, heating remains a challenge. Some portable devices that rely on external power sources or batteries for heating are unsuitable for locations without power due to power supply limitations, and their short battery life and frequent charging affect ease of use, while also resulting in low overall battery energy density.
[0007] III. Problems with traditional heating methods in portable scenarios:
[0008] In outdoor environments or without a stable power source, people have also tried using solid fuels (such as alcohol blocks) to heat coffee brewers. However, the combustion of solid fuels is difficult to control, the combustion process is unstable, and it easily produces smoke and odors, resulting in poor energy efficiency and environmental friendliness.
[0009] In conclusion, the market urgently needs a portable coffee brewing tool that is free from power limitations, provides stable heating, and is easy to operate. The portable gas-fired coffee maker has emerged to meet this need. Using gas heating, it boasts advantages such as compact size, rapid and stable heating, and easy control, satisfying people's desire to enjoy high-quality coffee anytime, anywhere. Utility Model Content
[0010] In order to overcome at least one of the technical problems existing in the prior art, this utility model provides a portable gas-fired coffee maker that is small and portable, easy to replace the gas cylinder, can provide continuous heating, and has high calorific value and direct heat energy conversion efficiency of the gas.
[0011] A portable gas-fired coffee maker includes a gas stove and a coffee maker. The gas stove supplies gas through a detachable gas cylinder, and the coffee maker is heated by the gas stove. The coffee maker includes a water reservoir, a powder reservoir for holding coffee powder installed inside the water reservoir, and a liquid reservoir threaded onto the water reservoir for holding coffee liquid. A powder reservoir chamber is provided inside the powder reservoir, with an upper powder separator and a lower powder separator installed at opposite ends of the chamber. The upper powder separator is detachable. A water inlet is installed at the lower end of the powder reservoir. The liquid reservoir includes a coffee liquid chamber, with an upwardly protruding outlet pipe installed within the coffee liquid chamber. An outlet is located at the upper end of the outlet pipe. The liquid reservoir tightly presses and fixes the upper powder separator and the powder reservoir. Heated water flows from the water reservoir through the water inlet and the lower powder separator into the powder reservoir chamber, and then through the upper powder separator and the outlet pipe into the coffee liquid chamber of the liquid reservoir.
[0012] In some embodiments, a hollow connecting seat is provided at the bottom of the liquid storage cup, and a spout is provided at the top of the water storage vessel. Threads are provided on the outer wall of the spout and the inner wall of the connecting seat. A downwardly recessed annular limiting platform is provided on the inner wall of the spout. A first positioning ring is provided radially on the top outer wall of the powder storage cup and is placed on the annular limiting platform. A sealing ring is installed on the top surface of the spout, and a second positioning ring is provided radially on the top outer wall of the upper powder separating mesh plate and is installed on the sealing ring. The liquid storage cup is threadedly connected to the water storage vessel, and the upper powder separating mesh plate, sealing ring, and powder storage cup are tightly pressed and sealed.
[0013] In some embodiments, both the water inlet pipe and the liquid outlet pipe are conical hollow pipes, with a water inlet hole provided at the end of the water inlet pipe; the top of the liquid outlet pipe is closed, and the liquid outlet is located on the upper outer wall of the liquid outlet pipe.
[0014] In some embodiments, the lower powder separator plate is fixed to the lower end of the powder storage chamber, and multiple mesh holes are provided on both the upper and lower powder separator plates.
[0015] In some embodiments, a gas valve is also included, on which the gas cylinder is detachably mounted, and the gas valve is connected to the gas furnace via a gas pipe.
[0016] In some embodiments, a kettle is also included, which can be placed on a gas stove for heating; the kettle can be stored in the top opening of the gas stove, and the coffee pot can be stored inside the kettle.
[0017] Additional aspects and advantages of this invention will continue to be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of this invention. Attached Figure Description
[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0019] Figure 1 This is a schematic diagram of the appearance of this application;
[0020] Figure 2 This is a breakdown diagram of this application;
[0021] Figure 3 This is a diagram showing a kettle placed on a gas stove.
[0022] Figure 4 This is a diagram showing a coffee pot placed on a gas stove.
[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of this application;
[0024] Figure 6 yes Figure 5 A schematic diagram of the cross-sectional structure of a medium-sized coffee maker;
[0025] Figure 7 This is a schematic diagram of the coffee pot's appearance;
[0026] Figure 8 This is a diagram showing the disassembled structure of a coffee maker;
[0027] Figure 9 This is a bottom view of the liquid storage cup;
[0028] Figure 10 This is a schematic diagram of the exterior of a gas stove;
[0029] Figure 11 This is a schematic diagram of the disassembled structure of a gas-fired stove.
[0030] Figure label:
[0031] Gas furnace 1
[0032] 100 outer casing, 101 air inlet pipe, 102 burner head, 103 bracket, 104 receiving cavity; 2 coffee pots;
[0033] Water tank 20, spout 200, thread 201, annular limiting platform 202, exhaust valve 203;
[0034] Powder storage cup 21;
[0035] Powder storage chamber 210, upper powder separating mesh plate 211, second positioning ring 2110, mesh 2111, lower powder separating mesh plate 212, first positioning ring 213;
[0036] Reservoir cup 22;
[0037] Coffee liquid container 220, liquid outlet fitting 221, liquid outlet 222, connector 223, water inlet fitting 23, water inlet hole 230;
[0038] Sealing ring 24;
[0039] 3. Gas valve; 4. Gas pipe; 5. Water kettle. Detailed Implementation
[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0041] In the description of this utility model, it should be understood that the directional descriptions, such as the terms "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0042] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0044] Reference Figures 1-11A portable gas-fired coffee maker, generally cylindrical in shape, includes a gas stove 1 and a coffee pot 2. The gas stove 1 is supplied with gas via a detachable gas cylinder, which typically weighs between 250 and 350 grams when fully filled, making it easy to carry and replace. The coffee pot 2 is heated by the gas stove 1. The coffee pot 2 includes a water reservoir 20, a powder container 21 installed inside the water reservoir 20 to hold coffee powder, and a liquid container 22 threaded onto the water reservoir 20 to hold liquid coffee. A powder storage chamber 210 is provided inside the powder container 21, with a circular upper powder separator 211 and a circular lower powder separator 212 installed at the upper and lower ends of the powder storage chamber 210, respectively. The upper powder separator 211 is detachable for easy pouring. Coffee powder; a water inlet pipe 23 is installed at the lower end of the powder container 21; the liquid container 22 includes a coffee liquid chamber 220, and an upwardly protruding liquid outlet pipe 221 is installed in the coffee liquid chamber 220, with an outlet 222 at the upper end of the liquid outlet pipe 221; the liquid container 22 tightly presses and fixes the upper powder separator plate 211 and the powder container 21. The heated hot water and gas can enter the powder chamber 210 from the water reservoir 20 through the water inlet pipe 23 and the lower powder separator plate 212 under pressure, and then enter the coffee liquid chamber 220 of the liquid container 22 through the upper powder separator plate 211 and the liquid outlet pipe 221. An exhaust valve 203 is also provided on the side wall of the water reservoir 20 to prevent pressure overload inside the reservoir and to serve as a safety protection measure.
[0045] In use, add purified water to the water reservoir 20, pour coffee powder into the powder storage chamber 210 of the powder storage cup 21, insert the powder storage cup 21 into the water reservoir 20, and then cover the upper powder separator 211 on the upper end of the powder storage chamber 210. Then, thread the liquid storage cup 22 onto the water reservoir 20. When the liquid storage cup 22 and the water reservoir 20 are tightly and sealed together, the upper powder separator 211 will be tightly and sealed together with the powder storage cup 21 under the pressure of the connecting seat 223, preventing coffee powder, liquid or gas from overflowing from the connection. The upper powder separator 211 and the lower powder separator 212 can block coffee powder from entering or leaving, but allow water or gas to pass through. Then, place the coffee pot 2 on the gas stove 1 and turn on the gas stove 1. The gas output from the gas cylinder burns at the burner head and heats the bottom and outside of the water tank 20. After the water tank 20 is heated, the water inside will be heated to boiling. The hot water and steam in the water tank 20 enter the powder storage chamber 210 through the water inlet pipe 23 and the lower powder separator 212. After the hot water and coffee powder are mixed and soaked, coffee liquid is produced. The coffee liquid then enters the coffee liquid chamber 220 of the liquid storage cup 22 through the upper powder separator 211 and the liquid outlet pipe 221. The desired coffee beverage is then obtained in the liquid storage cup 22.
[0046] This application can eliminate power supply limitations, provide stable heating, and is easy to operate; it uses portable gas cylinders for fuel and has the advantages of being compact and portable, providing rapid and stable heating, and being easy to control, which can meet people's needs to enjoy high-quality coffee anytime in different environments.
[0047] In some embodiments, a hollow connecting seat 223 is provided at the bottom of the liquid storage cup 22, and a circular spout 200 is provided at the top of the water storage vessel 20. Threads 201 are correspondingly provided on the outer wall of the spout 200 and the inner wall of the connecting seat 223 to facilitate threaded connection between the liquid storage cup 22 and the water storage vessel 20, making installation and disassembly convenient. A downwardly recessed annular limiting platform 202 is provided on the inner wall of the spout 200, its height being lower than the top plane of the spout 200. A first positioning ring 213 is radially provided on the top outer wall of the powder storage cup 21. A positioning ring 213 is placed on an annular limiting platform 202, and the two fit together to improve sealing performance. A sealing ring 24 is installed on the top surface of the spout 200 to prevent water and air leakage. A second positioning ring 2110 is radially arranged on the top outer wall of the upper powder separator 211, and the second positioning ring 2110 fits onto the sealing ring 24. The liquid storage cup 22 is threadedly connected to the water storage tank 20, and the upper powder separator 211, sealing ring 24, and liquid storage cup 21 are tightly sealed to prevent liquid and gas from overflowing from the connection between the above components. The above structural design makes the installation and disassembly of the components convenient, easy to use and clean, and provides good sealing performance, preventing liquid and gas from easily overflowing.
[0048] In some embodiments, both the water inlet pipe 23 and the liquid outlet pipe 221 are conical hollow pipes, also known as trumpet-shaped pipes, with one end larger than the other. After installation, the smaller end of the water inlet pipe 23 extends into the water reservoir 20, while the larger end faces the lower powder separator plate 212, and its diameter is equal to that of the powder storage chamber 210. This facilitates the liquid from the water reservoir 20 into the powder storage chamber 210 to fully mix with the coffee powder. The larger end of the liquid outlet pipe 221 faces the upper powder separator plate 211 and is straight. The diameter is equal to that of the powder storage chamber 210, and the smaller end extends into the liquid storage cup 22 to facilitate further mixing of the coffee liquid before it flows out into the liquid storage cup 22; a water inlet 230 is provided at the end of the water inlet pipe 23; the top of the liquid outlet pipe 221 is closed to prevent the coffee liquid from spraying out of the liquid storage cup 22; the liquid outlet 222 is opened on the upper outer wall of the liquid outlet pipe 221, and preferably two liquid outlets symmetrically arranged or multiple evenly distributed, thereby improving the liquid outlet and air venting effect.
[0049] In some embodiments, the lower powder separator plate 212 is fixedly installed at the lower end of the powder storage chamber 210. Both the upper powder separator plate 211 and the lower powder separator plate 212 are provided with a plurality of evenly distributed mesh holes 2111. The mesh holes 2111 allow liquid and gas to pass through, but prevent or reduce coffee powder overflow, thereby improving the taste and purity of the coffee liquid.
[0050] In some embodiments, a gas valve 3 is also included, which can be used to regulate the gas flow rate, thereby controlling the size of the flame; the gas cylinder is detachably mounted on the gas valve 3 for easy replacement; the gas valve 3 is connected to the gas furnace 1 via a gas pipe 4; this structural design facilitates the replacement of the gas cylinder and can continuously provide fuel to the gas furnace 1.
[0051] In some embodiments, a kettle 5 is also included, which can be placed in the gas stove 1 for heating; the kettle 5 can be stored in the top opening of the gas stove 1, and the coffee pot 2 can be stored in the kettle 5; this application can brew coffee using the coffee pot 2 and boil water using the kettle 5; the gas stove 1 includes a hollow cylindrical outer shell 100, an air inlet pipe 101 installed at the lower end of the outer shell 100, a burner head 102 installed at the upper end of the outer shell 100, and a bracket 103; a plurality of air inlets are evenly provided on the outer wall of the outer shell 100, and the bracket... A receiving cavity 104 is formed between the top of the gas stove 103 and the outer shell 100. The kettle 5 or coffee pot 2 can be placed on the support 103 located in the receiving cavity 104. The diameter of the top opening of the gas stove 1 is larger than that of the kettle 5 and the coffee pot 2. When not in use, the kettle 5 can be placed into the top opening of the gas stove 1 (i.e., the receiving cavity 104) first, and then the coffee pot 2 can be placed in the kettle 5; or the coffee pot 2 can be placed in the receiving cavity 104 first, and then the kettle 5 can be placed upside down on the coffee pot 2. This can reduce the volume and make storage convenient.
[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.
Claims
1. A portable gas heated coffee extraction jug comprising a gas burner, a coffee jug, characterised in that: The gas stove supplies gas through a detachable gas cylinder, and the coffee maker is heated by the gas stove. The coffee maker includes a water reservoir, a coffee powder container installed inside the water reservoir to hold coffee powder, and a liquid container threaded onto the water reservoir to hold coffee liquid. The coffee powder container has a powder storage chamber, with an upper and lower powder separator installed at its upper and lower ends respectively. The upper powder separator is detachable. A water inlet pipe is installed at the lower end of the coffee powder container. The liquid container includes a coffee liquid chamber, with an upwardly protruding outlet pipe installed inside the coffee liquid chamber. An outlet is located at the upper end of the outlet pipe. The liquid container tightly presses and fixes the upper powder separator and the coffee powder container. Heated water can enter the coffee powder chamber from the water reservoir through the water inlet pipe and the lower powder separator, and then enter the coffee liquid chamber of the liquid container through the upper powder separator and the outlet pipe.
2. The portable gas-fired heat supply coffee extraction pitcher according to claim 1, characterized in that: A hollow connecting seat is provided at the bottom of the liquid storage cup, and a spout is provided at the top of the water storage vessel. Threads are provided on the outer wall of the spout and the inner wall of the connecting seat. A downwardly recessed annular limiting platform is provided on the inner wall of the spout. A first positioning ring is provided radially on the top outer wall of the powder storage cup and is placed on the annular limiting platform. A sealing ring is installed on the top surface of the spout, and a second positioning ring is provided radially on the top outer wall of the upper powder separating mesh plate and is installed on the sealing ring. The liquid storage cup is threadedly connected to the water storage vessel, and the upper powder separating mesh plate, sealing ring, and powder storage cup are tightly pressed and sealed.
3. A portable gas heated coffee extraction jug as claimed in claim 1 or 2 wherein: Both the water inlet pipe and the liquid outlet pipe are conical hollow pipes. The water inlet pipe has a water inlet hole at the end. The top of the liquid outlet pipe is closed, and the liquid outlet is located on the upper outer wall of the liquid outlet pipe.
4. A portable gas heated coffee extraction jug as claimed in claim 3 wherein: The lower powder separator is fixed at the lower end of the powder storage chamber, and multiple mesh holes are provided on both the upper and lower powder separators.
5. A portable gas heated coffee extraction jug as claimed in claim 4 wherein: It also includes a gas valve, on which the gas cylinder is detachably mounted, and the gas valve is connected to the gas stove via a gas pipe.
6. The portable gas heated coffee extraction pitcher of claim 5 wherein: It also includes a kettle that can be placed on a gas stove for heating; the kettle can be stored inside the top opening of the gas stove, and the coffee maker can be stored inside the kettle.