Pneumatic coffee extractor

Abstract

The utility model discloses a pneumatic coffee extractor, and particularly relates to the technical field of coffee extraction, the pneumatic coffee extractor comprises an extraction tank, one side of the outer wall of the extraction tank is fixedly connected with a supporting strip, the lower surface of the supporting strip is fixedly provided with a rotating motor, and the output end of the rotating motor is provided with a feeding switching mechanism; the feeding switching mechanism comprises a rotating shaft fixedly arranged at the output end of the rotating motor, a rotating block is fixedly connected to the bottom end of the rotating shaft, and linkage rings are fixedly connected to the two sides of the rotating block; the top end of each linkage ring is fixedly connected with a rubber ring, the rubber rings are in sliding connection with the extraction tank, the rubber rings are used for extruding the extraction tank, and the bottom ends of the linkage rings are fixedly connected with an extraction filter screen. By means of the feeding switching mechanism, steam in the extraction tank continues to extract coffee powder in the other extraction filter screen, personnel can conduct rapid extraction without waiting for extraction, and the efficiency of extracting and switching coffee materials is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coffee extraction technical field more specifically, the utility model relates to a kind of pneumatic coffee extraction machine. BACKGROUND

[0002] Pneumatic coffee extraction machine, also known as pneumatic coffee machine or hand-press coffee machine, is a kind of appliance using gas pressure principle to extract coffee. Pneumatic coffee extraction machine is most suitable for making espresso. High-pressure gas generated by manual or foot pedal pushes water through tightly compacted coffee powder layer, thereby extracting coffee liquid with rich and intense taste.

[0003] In the existing public literature, the patent with the patent announcement number CN221830421U discloses a coffee low-temperature extraction machine. The technology is that the screen mesh is slidably arranged in the filter box. The connecting box is fixedly installed on one side of the filter box. The discharge port is opened on one side of the filter box, and the discharge port is located on one side of the screen mesh and communicates with the connecting box. The mesh box is arranged in the connecting box. The mixing mechanism is arranged on the mixing box for mixing materials. The coffee low-temperature extraction machine provided by the utility model has the advantages of effectively filtering the residues of coffee beans, thereby ensuring that the coffee liquid does not mix with residues. However, the patent has the following defects.

[0004] The coffee extraction machine can increase the pressure for extraction when extracting coffee, but there is a large amount of remaining material in the extracted coffee during the extraction process. Therefore, personnel need to wait for the extraction to be completed, disassemble, and then re-extract, which is low in efficiency. Therefore, a pneumatic coffee extraction machine is provided. UTILITY MODEL CONTENT

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides the following technical scheme: a pneumatic coffee extraction machine, comprising an extraction tank, the outer wall of the extraction tank is fixedly connected with a branch, the lower surface of the branch is fixedly installed with a rotary motor, and the output end of the rotary motor is provided with a feed switching mechanism. The feed switching mechanism comprises a rotating shaft fixedly arranged on the output end of the rotary motor, and the bottom end of the rotating shaft is fixedly connected with a rotating block, and the two sides of the rotating block are fixedly connected with a linkage ring. The top end of each linkage ring is fixedly connected with a rubber ring, and the rubber ring is slidably connected between the extraction tank. The rubber ring is used for extruding the extraction tank, and the bottom end of the linkage ring is fixedly connected with an extraction filter screen.

[0006] Preferably, the two linkage rings are symmetrically arranged about the rotating block, the cross-sectional shape of the two linkage rings is circular, the cross-sectional shape of the two rubber rings is circular, the rubber rings are made of rubber material, the top end of the extraction tank is integrally formed with a cover by pressure casting, and the top end of the cover is fixedly connected with a steam filling pipe.

[0007] In use, coffee powder is added into the extraction filter screen, steam is filled into the cover from the steam filling pipe, and extraction liquid is guided when the coffee powder in the extraction filter screen is extracted.

[0008] Preferably, the bottom end of the air increasing pipe is fixedly connected with a booster pump, the input end of the booster pump is fixedly connected with a suction pipe, one side of the suction pipe is connected with two filter cartridges, the outer wall of each filter cartridge is fixedly connected with a cover block, the bottom end of the cover block is provided with a concave block, and the two cover blocks are fixedly connected with the concave block.

[0009] In use, external air is introduced into the filter cartridge by the booster pump, the suction pipe is filled into the air increasing pipe, and the pressurized pneumatic extraction of coffee liquid is realized.

[0010] The technical effects and advantages of the present application are as follows:

[0011] 1. The utility model discloses a feed switching mechanism, through the coffee powder of extraction in the inside of extraction filter screen is added, and the coffee powder is added in the inside of another extraction filter screen simultaneously, the steam is filled into the cover in the inside of steam filling pipe, passes through the cover and enters the inside of extraction tank, when the coffee powder in the inside of extraction filter screen is extracted, the rotary motor drives the rotation of the rotating shaft, and the rotating shaft drives the rotation of the rotating block, and the bottom end of the extraction tank is separated out, so that another rubber ring drives another linkage ring to rotate one hundred and eighty degrees, and the steam in the inside of extraction tank continues to extract the coffee powder in the inside of another extraction filter screen, and personnel can carry out quick extraction without waiting for extraction, and the efficiency of extraction switching coffee material is improved greatly.

[0012] 2. The utility model discloses through the booster pump makes the outside air enter into the filter cartridge, realizes the filtration after entering into the suction pipe through the filter cartridge, and the gas increasing pipe makes the extraction tank inside steam carry out the pressurization and go down the row, and the shift motor drives the rotation of the screw rod, and the screw rod makes the thread sleeve block under the action of thread and move left, and the inside of filter cartridge of dust impurity more is cleaned to the cleaning personnel, thereby avoiding the extraction operation of normal coffee. DRAWINGS

[0013] Figure 1 It is the whole structure schematic diagram of the utility model's pneumatic coffee extraction machine.

[0014] Figure 2 It is the extraction tank and the branch connection place cut-off partial structure schematic diagram of the utility model.

[0015] Figure 3 It is the gas increasing pipe and the booster pump connection place cut-off partial structure schematic diagram of the utility model.

[0016] Figure 4 It is the Figure 3 It is the enlarged structure schematic diagram of A place in the utility model.

[0017] Figure 5 It is the rear view partial structure schematic diagram of the concave block and the sleeve block connection place of the utility model.

[0018] The drawing mark is: 1, extraction tank;2, branch;3, rotary motor;4, rotating shaft;5, rotating block;6, rubber ring;7, linkage ring;8, extraction filter screen;9, steam filling pipe;10, cover;11, sleeve support;12, gas increasing pipe;13, booster pump;14, suction pipe;15, filter cartridge;16, sleeve block;17, concave block;18, thread sleeve block;19, screw rod;20, support frame;21, shift motor. CONCRETE IMPLEMENTING METHOD

[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0020] As shown in the accompanying drawings of the embodiments of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Figures 1-5 As shown in the accompanying drawings of the embodiments of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0021] In the technical scheme, as shown in the accompanying drawings of the embodiments of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Figures 1-2 In the technical scheme, as shown in the accompanying drawings of the embodiments of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0022] In the technical scheme, as shown in the accompanying drawings of the embodiments of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Figure 1 In the technical scheme, as shown in the accompanying drawings of the embodiments of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0023] In the technical scheme, as shown in the accompanying drawings of the embodiments of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0024] The support strut 2 supports the rotary motor 3, the rotary motor 3 drives the rotating shaft 4 to rotate, the rotating shaft 4 drives the rotating block 5 to rotate, the rotating block 5 drives the two linkage rings 7 to rotate synchronously, the linkage ring 7 drives the rubber ring 6 to rotate, the rubber ring 6 is separated from the bottom end of the extraction tank 1, so that the other rubber ring 6 drives the other linkage ring 7 to rotate by 180 degrees, the linkage ring 7 drives the other extraction filter screen 8 to rotate to the bottom of the extraction tank 1, so that the steam in the extraction tank 1 continues to extract the coffee powder in the other extraction filter screen 8, and the extraction operation of the coffee liquid is realized.

[0025] In the technical solution, as shown in the accompanying drawings Figures 1-5 As shown in the accompanying drawings, the bottom end of the gas increasing pipe 12 is fixedly connected with the booster pump 13, and the input end of the booster pump 13 is fixedly connected with the suction pipe 14; the suction pipe 14 is connected with two filter cartridges 15 on one side, the outer wall of each filter cartridge 15 is fixedly connected with a sleeve block 16, the bottom end of the sleeve block 16 is provided with a concave block 17, and the two sleeve blocks 16 are fixedly connected with the concave block 17; the concave block 17 is fixedly installed on one side and is provided with a threaded sleeve block 18, the inner wall of the threaded sleeve block 18 is threadedly connected with a screw rod 19, the outer wall of the threaded sleeve block 18 is slidably connected with a support frame 20, the support frame 20 is fixedly connected between the sleeve support 11, and the one end of the support frame 20 is fixedly installed with a displacement motor 21, and the output end of the displacement motor 21 is fixedly connected with the screw rod 19. One of the filter cartridges 15 is slidably connected with the suction pipe 14, and the vertical section shape of the concave block 17 is concave. The threaded sleeve block 18 is slidably connected with the support frame 20, and the displacement motor 21 is used for driving the screw rod 19 to rotate.

[0026] In use, the booster pump 13 allows external air to enter the filter cartridge 15, and the filter cartridge 15 allows the filtered air to enter the suction pipe 14, and the suction pipe 14 allows the air to enter the gas increasing pipe 12, and the gas increasing pipe 12 allows the steam in the extraction tank 1 to be pressurized and discharged, so that the coffee liquid is extracted by pressurized gas. When a large amount of dust and impurities exist in the filter cartridge 15, the support frame 20 is supported by the sleeve support 11, the support frame 20 supports the displacement motor 21, the displacement motor 21 drives the screw rod 19 to rotate, the screw rod 19 allows the threaded sleeve block 18 to move left under the action of the thread, the threaded sleeve block 18 drives the concave block 17 to move left, the concave block 17 allows the two sleeve blocks 16 to move left, the sleeve block 16 drives the filter cartridge 15 to move left, and the other filter cartridge 15 also moves left and is connected to the air inlet position of the suction pipe 14, so that the suction pipe 14 is filtered, and the filter cartridge 15 with a large amount of dust and impurities is cleaned by the cleaning personnel.

[0027] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pneumatic coffee extraction machine, comprising an extraction tank (1), characterized in that: A support bar (2) is fixedly connected to one side of the outer wall of the extraction tank (1), and a rotary motor (3) is fixedly installed on the lower surface of the support bar (2). The output end of the rotary motor (3) is provided with a feeding switching mechanism. The feeding switching mechanism includes a rotating shaft (4) fixedly installed at the output end of the rotary motor (3), and a rotating block (5) is fixedly connected to the bottom end of the rotating shaft (4), and a linkage ring (7) is fixedly connected to both sides of the rotating block (5). Each of the linkage rings (7) is fixedly connected to a rubber ring (6) at its top end. The rubber ring (6) is slidably connected to the extraction tank (1). The rubber ring (6) is used to squeeze the extraction tank (1). An extraction filter screen (8) is fixedly connected to the bottom end of the linkage ring (7).

2. The pneumatic coffee extraction machine according to claim 1, characterized in that: The two linkage rings (7) are symmetrically arranged about the rotating block (5), and the cross-sectional shape of the two linkage rings (7) is circular.

3. The pneumatic coffee extraction machine according to claim 1, characterized in that: Both of the rubber rings (6) have a circular cross-sectional shape and are made of rubber.

4. The pneumatic coffee extraction machine according to claim 1, characterized in that: The top of the extraction tank (1) is integrally formed by die casting with a cover (10), and the top of the cover (10) is fixedly connected to a steam injection pipe (9). A gas-increasing pipe (12) is provided on one side of the steam injection pipe (9), and a sleeve bracket (11) is provided above the support (2) and is fixedly connected to the extraction tank (1).

5. A pneumatic coffee extraction machine according to claim 4, characterized in that: The bottom end of the gas booster pipe (12) is fixedly connected to a booster pump (13), and the input end of the booster pump (13) is fixedly connected to a suction pipe (14). Two filter cartridges (15) are connected to one side of the inhalation tube (14). Each filter cartridge (15) has a sleeve block (16) fixedly connected to its outer wall. A concave block (17) is installed at the bottom of the sleeve block (16). Both sleeve blocks (16) are fixedly connected to the concave block (17). A threaded sleeve block (18) is fixedly installed on one side of the concave block (17). A screw rod (19) is threadedly connected to the inner wall of the threaded sleeve block (18). A support frame (20) is slidably connected to the outer wall of the threaded sleeve block (18). The support frame (20) is fixedly connected to the sleeve bracket (11). A displacement motor (21) is fixedly installed at one end of the support frame (20). The output end of the displacement motor (21) is fixedly connected to the screw rod (19).

6. A pneumatic coffee extraction machine according to claim 5, characterized in that: One of the filter cartridges (15) is slidably connected to the suction tube (14), and the vertical cross-sectional shape of the concave block (17) is concave.

7. A pneumatic coffee extraction machine according to claim 5, characterized in that: The threaded sleeve (18) is slidably connected to the support frame (20), and the variable position motor (21) is used to drive the screw (19) to rotate.

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