Hand pulling type centrifugal inertia coffee machine

Abstract

The utility model discloses a hand-pulling type centrifugal inertia coffee machine which comprises a hand-pulling power mechanism at the upper end, the lower side of the hand-pulling power mechanism is in power connection with a transmission shaft, the lower side of the transmission shaft is fixedly connected with a cup cover, and the lower side of the cup cover is detachably and fixedly connected with an extraction cup body. The lower end of the transmission shaft is provided with stirring blades located in the extraction cup body, the upper side of the extraction cup body is provided with metal fine mesh holes used for centrifugally throwing out liquid, water actively searches for the fine mesh holes capable of leaking through the action of centrifugal force, the filtering process is faster than natural gravity extraction, and the extraction efficiency is improved. Meanwhile, liquid remaining in coffee powder is less, waste is reduced, even thin coffee powder particles can be made, the extraction rate is higher than that of common non-pressure extraction, and compared with pressurized extraction equipment, energy needed in the making process is less, the structure is simple, the size is small, portability is achieved, dependence on a power source is avoided, and the coffee making machine is more suitable for household or outdoor coffee making.

Description

Technical Field

[0001] The utility model relates to the field of coffee machines, in particular to a hand-pull type centrifugal inertia coffee machine. Background Art

[0002] With the improvement of living standards, people are increasingly fond of high-quality freshly ground and brewed coffee, and are starting to make coffee by themselves.

[0003] To make a cup of freshly ground coffee, we need to bring water and coffee into contact, allow the soluble substances in the coffee powder to dissolve in the water, and then separate the water containing the coffee soluble substances from the insoluble coffee powder to get a cup of drinkable coffee liquid.

[0004] There are two mainstream ways to separate coffee grounds and coffee liquid:

[0005] 1. Pressure-free extraction:

[0006] Without adding extra pressure, use filter paper or metal filter to filter naturally. Under the action of gravity, the coffee liquid will pass through the filter paper or metal filter with tiny holes and flow into the container below, while the inedible coffee powder will remain on the filter paper, completing the coffee making.

[0007] This filtering method has three disadvantages:

[0008] 1. Only suitable for coarser coffee powder: If the coffee powder is ground too finely, it will clog the gaps in the filter paper. When the gaps in the filter paper are clogged, the filter paper loses its filtering ability and cannot filter the coffee. This extraction method requires the coffee powder to be coarser, but the coarser the particles, the smaller the specific surface area of ​​the same gram of coffee powder, resulting in less extraction of soluble substances.

[0009] 2. Long filtration time: Because the coffee liquid relies on natural gravity to penetrate downward, the gaps in the filter paper are gradually blocked during the filtration process, causing the penetration process to become slower and slower, and the extraction process takes more time.

[0010] 3. There is a lot of water remaining in the coffee powder: The wet coffee powder is like a sponge. In the absence of external pressure, a lot of water will remain in the coffee powder. This part of water cannot be effectively separated, resulting in waste.

[0011] 2. Pressurized extraction:

[0012] In order to make up for the shortcomings of pressureless extraction, pressurized extraction was born. By increasing the pressure inside the extraction container to 7-15 atmospheres, the coffee liquid can quickly penetrate the filter mesh under the drive of pressure. Under pressurized conditions, finer coffee powder can be used, and the extraction rate of soluble substances is also higher. At the same time, less liquid remains in the coffee powder, reducing waste. It is a more advanced coffee extraction method. However, in order to generate high pressure, this type of equipment has high power consumption, complex internal structure, large size, and high cost, resulting in a low household penetration rate.

[0013] There are also manual pressurized coffee machines that use the lever principle. However, in order to adapt to ergonomics, the length of the lever is limited. In order to generate a high enough pressure in the extraction container, it is very physically demanding, the consumer experience is not good, and it is difficult for the market to accept it.

[0014] Therefore, the utility model proposes a hand-pull type centrifugal inertia coffee machine to solve the above problems. Utility Model Content

[0015] In order to overcome the defects in the above-mentioned prior art, the utility model provides a hand-pull centrifugal inertia coffee machine. Through the action of centrifugal force, water actively seeks pores through which it can seep out. The filtering process is faster than extraction by natural gravity. At the same time, less liquid remains in the coffee powder, reducing waste. Even finer coffee powder particles can be produced. The extraction rate is higher than that of general pressure-free extraction. Compared with pressurized extraction equipment, the production process requires less energy, has a simple structure, a small size, is portable, and is not dependent on power supply. It is more suitable for home or outdoor coffee making.

[0016] Technical Solution

[0017] A hand-pull centrifugal inertia coffee machine, comprising a hand-pull power mechanism at the upper end, the lower side of the hand-pull power mechanism is connected to a transmission shaft, the lower side of the transmission shaft is fixedly connected to a cup cover, the lower side of the cup cover is detachably fixedly connected to an extraction cup body, the lower end of the transmission shaft is provided with stirring blades located inside the extraction cup body, the upper side of the extraction cup body is provided with metal fine mesh holes for centrifugally throwing out liquid, and the extraction cup body is located inside a coffee collection cup.

[0018] Furthermore, the hand-pulled power mechanism includes an upper shell and a lower shell with an external thread, a fixed chassis is fixedly provided on the upper side surface of the lower shell, a rebound spring coil is placed in the fixed chassis, the rebound spring coil includes a first fixed end and a second fixed end, and a fixed bayonet for fixing the second fixed end is provided on the fixed chassis.

[0019] Furthermore, the transmission shaft passes through and is rotatably connected to the fixed chassis, the transmission shaft passes through the rebound spring coil and a storage tray passes through the upper side of the rebound spring coil, a fixing pin for fixing the first fixed end is provided on the lower side of the storage tray, and a pull rope with one end passing through the upper shell is wrapped around the storage tray.

[0020] Furthermore, two locking plate fixing shafts are fixed on the upper end surface of the storage tray, and a one-way locking plate is fixed on the locking plate fixing shaft. A gear disc is provided on the upper side of the storage tray, and a ratchet is provided on the lower surface of the gear disc. The one-way locking plate can clamp the ratchet in one direction.

[0021] Furthermore, the gear disc is fixedly connected to the transmission shaft.

[0022] Furthermore, a sealing ring is provided on the lower shell, which can be sealed and connected to the upper port of the coffee collecting cup.

[0023] Beneficial Effects

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] Instead of following the natural passive separation method of pressureless extraction or the pressurized extraction method, a new approach is taken to separate the coffee powder and water by using the principle of inertia generated by the movement of matter.

[0026] The coffee powder and water are mixed inside the extraction container and the soluble substances are dissolved. Then, a force is applied to make the container rotate at high speed. Under the action of inertia, the coffee powder and water mixture in the container forms a centrifugal force. Due to the fluidity of the liquid, the coffee liquid is drilled out through the pores of the metal mesh, and the coffee powder is isolated in the container, completing the extraction.

[0027] Under the action of centrifugal force, water actively seeks out pores, and the filtering process is faster than extraction by natural gravity. At the same time, less liquid remains in the coffee powder, reducing waste. Even finer coffee powder particles can be produced, and the extraction rate is higher than general pressure-free extraction. Compared with pressurized extraction equipment, the production process requires less energy (physical strength or electricity), simple structure, small size, portability, no dependence on power supply, and more suitable for home or outdoor coffee making. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of a hand-pull centrifugal inertia coffee machine of the utility model;

[0029] Figure 2 for Figure 1 Schematic diagram of the explosion structure of the middle hand-pull power mechanism.

[0030] Reference Numbers

[0031] Hand-pull power mechanism 900, upper shell 1, gear disc 11, one-way locking plate 12, locking plate fixing shaft 13, storage tray 14, rebound spring coil 15, first fixed end 151, second fixed end 152, fixed chassis 16, ratchet 17, fixing pin 18, fixing bayonet 19, cup cover 2, pull rope 3, stirring blade 4, metal fine mesh 5, extraction cup body 6, coffee collecting cup 7, transmission shaft 8, lower shell 9. DETAILED DESCRIPTION

[0032] In order to better illustrate the content of the utility model, the following is a description with reference to the accompanying drawings and implementation examples:

[0033] have Figure 1-Figure 2 As shown, the utility model discloses a hand-pull centrifugal inertia coffee machine, including a hand-pull power mechanism 900 at the upper end, the lower side of the hand-pull power mechanism 900 is connected to a transmission shaft 8 for power, a cup cover 2 is fixedly connected to the lower side of the transmission shaft 8, an extraction cup body 6 is detachably fixedly connected to the lower side of the cup cover 2, a stirring blade 4 located inside the extraction cup body 6 is provided at the lower end of the transmission shaft 8, a metal fine mesh 5 for centrifugally throwing out liquid is provided on the upper side of the extraction cup body 6, and the extraction cup body 6 is located inside a coffee collecting cup 7.

[0034] Furthermore, the hand-pulled power mechanism 900 includes an upper shell 1 and a lower shell 9 with an external thread. A fixed chassis 16 is fixedly provided on the upper side surface of the lower shell 9. A rebound spring coil 15 is placed in the fixed chassis 16. The rebound spring coil 15 includes a first fixed end 151 and a second fixed end 152. A fixed bayonet 19 for fixing the second fixed end 152 is provided on the fixed chassis 16.

[0035] Furthermore, the transmission shaft 8 passes through and is rotatably connected to the fixed chassis 16. The transmission shaft 8 passes through the rebound spring coil 15 and a storage tray 14 passes through the upper side of the rebound spring coil 15. A fixing pin 18 for fixing the first fixed end 151 is provided on the lower side of the storage tray 14. A pull rope 3 with one end passing through the upper shell 1 is wrapped around the storage tray 14.

[0036] Furthermore, two locking plate fixing shafts 13 are fixed on the upper end surface of the storage tray 14, and a one-way locking plate 12 is fixed on the locking plate fixing shaft 13. A gear disc 11 is provided on the upper side of the storage tray 14, and a ratchet 17 is provided on the lower surface of the gear disc 11. The one-way locking plate 12 can clamp the ratchet 17 in one direction.

[0037] Furthermore, the gear disc 11 is fixedly connected to the transmission shaft 8 .

[0038] Furthermore, a sealing ring (not shown) is provided on the lower shell 9 , which can be sealed and connected with the upper port of the coffee collecting cup 7 .

[0039] Specifically, when in use, the liquid to be extracted is poured into the extraction cup body 6, and then the extraction cup body 6 is installed on the cup cover 2, and then the lower shell 9 is installed on the upper port of the coffee collection cup 7;

[0040] At this time, the pull rope 3 is manually pulled, and then the storage tray 14 rotates to make the rebound spring coil 15 store energy. When the storage tray 14 rotates, it drives the gear plate 11 to rotate through the one-way locking plate 12 and the ratchet 17, and then drives the transmission shaft 8 to rotate, and then drives the cup cover 2 to rotate, so that the cup cover 2 drives the extraction cup body 6 and drives the liquid to rotate, and the stirring blade 4 can stir the liquid while driving the liquid to rotate;

[0041] During the rotation, the liquid is thrown to the metal fine mesh 5 by inertia and the inclined structure of the extraction cup 6, and then seeps out and is collected in the coffee collection cup 7;

[0042] After pulling the pull rope 3 once, let go, and the storage tray 14 will reverse under the elastic force of the rebound spring coil 15, thereby retracting the pull rope 3. At this time, the rotation of the one-way locking plate 12 will not drive the gear disc 11 to rotate, and the arcing storage tray 14 will be reset. At this time, the pull rope 3 can continue to be pulled until the extraction is completed.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the technical solution of the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solution recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solution from the spirit and scope of the technical solution of each embodiment of the utility model.

Claims

1. A hand-pull centrifugal inertia coffee machine, characterized in that: The invention comprises a hand-pull power mechanism (900) at the upper end, the lower side of the hand-pull power mechanism (900) is connected to a transmission shaft (8) by power, the lower side of the transmission shaft (8) is fixedly connected to a cup cover (2), the lower side of the cup cover (2) is detachably fixedly connected to an extraction cup body (6), the lower end of the transmission shaft (8) is provided with a stirring blade (4) located inside the extraction cup body (6), the upper side of the extraction cup body (6) is provided with a metal fine mesh (5) for centrifugally throwing out liquid, and the extraction cup body (6) is located inside a coffee collection cup (7).

2. A hand-pull centrifugal inertia coffee machine according to claim 1, characterized in that: The hand-pulled power mechanism (900) comprises an upper shell (1) and a lower shell (9) with external threads, a fixed chassis (16) is fixedly provided on the upper side surface of the lower shell (9), a rebound spring ring (15) is placed in the fixed chassis (16), the rebound spring ring (15) comprises a first fixed end (151) and a second fixed end (152), and a fixed bayonet (19) for fixing the second fixed end (152) is provided on the fixed chassis (16).

3. The hand-pull centrifugal inertia coffee machine according to claim 2, characterized in that: The transmission shaft (8) passes through and is rotatably connected to the fixed chassis (16); the transmission shaft (8) passes through the rebound spring coil (15) and a storage tray (14) is passed through the upper side of the rebound spring coil (15); a fixing pin (18) for fixing the first fixed end (151) is provided on the lower side of the storage tray (14); and a pull rope (3) with one end passing through the upper shell (1) is wound around the storage tray (14).

4. The hand-pull centrifugal inertia coffee machine according to claim 3, characterized in that: Two locking plate fixing shafts (13) are fixedly arranged on the upper end surface of the storage tray (14), and a one-way locking plate (12) is fixed on the locking plate fixing shaft (13). A gear plate (11) is arranged on the upper side of the storage tray (14), and ratchet teeth (17) are arranged on the lower surface of the gear plate (11), and the one-way locking plate (12) can unidirectionally clamp the ratchet teeth (17).

5. The hand-pull centrifugal inertia coffee machine according to claim 4, characterized in that: The gear disc (11) is fixedly connected to the transmission shaft (8).

6. The hand-pull centrifugal inertia coffee machine according to claim 5, characterized in that: The lower shell (9) is provided with a sealing ring, which can be sealed and connected to the upper port of the coffee collecting cup (7).

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