An extractor

Abstract

The utility model discloses an extractor. It comprises a machine body, a water system capable of generating steam, a steam outlet, a suspension device and an extraction cup body corresponding to the machine body, a detachable and sealed connection between the bottom of the suspension device and the top of the extraction cup body, a communication between the bottom surface of the suspension device and the inner cavity of the extraction cup body, a first lifting device provided on the machine body, the first lifting device driving the suspension device to move up and down, a liquid receiving container provided below the extraction cup body, and a liquid outlet provided at the bottom of the extraction cup body. Compared with the prior art, the volume of the extraction cup body is not limited by the liquid receiving container, the extraction cup body has a large volume and can hold extraction materials such as food and medicinal materials, the extraction cup body is not limited by the liquid receiving container, and the extraction materials are convenient to add and replace. Moreover, the extraction cup body can be sealed to improve the steam extraction effect. The extraction cup body is easy to disassemble, convenient to place extraction materials and clean, and safe and sanitary to use.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to an extraction machine that uses steam. Background Technology

[0002] CN218853517U discloses a steam extraction heating device, which includes: a base; a steam generator disposed on the base and connected to a water source, wherein water from the water source can be introduced into the steam generator to heat the water to form steam; an extraction heating tube disposed along the height direction of the base and connected to the steam generator, wherein the tube wall is provided with a first steam outlet; a receiving member disposed on the outer wall of the extraction heating tube, forming an upward-opening receiving groove with the outer wall of the extraction heating tube, wherein the first steam outlet is connected to the receiving groove, and the receiving member has a liquid outlet hole connecting the inside and outside of the receiving groove; the steam generator introduces steam into the receiving groove through the first steam outlet hole to extract the items in the receiving groove to form an extractant, and the extractant is introduced into the receiving member below the extraction heating tube from the liquid outlet hole.

[0003] It has the following shortcomings: First, the container and the receiving part need to be used together. That is, the container needs to be inserted into the receiving part and the receiving part is sealed by the cover. This limits the volume of the container. Although it is convenient for extracting small materials such as tea leaves, it is difficult to extract larger materials such as medicinal herbs. Moreover, it is not easy to take out and put in the extraction material. Utility Model Content

[0004] The purpose of this invention is to provide an extraction machine whose extraction material volume is not limited by the receiving container.

[0005] The purpose of this utility model is achieved as follows.

[0006] An extraction machine includes a body, a water system capable of generating steam, a steam outlet, a suspension device and an extraction cup corresponding to the body, the bottom of the suspension device and the top of the extraction cup being detachably and sealed together, the steam outlet being located on the bottom surface of the suspension device and communicating with the inner cavity of the extraction cup, the body having a first lifting device that drives the suspension device to move up and down, a liquid receiving container being located below the extraction cup, and a liquid outlet being located at the bottom of the extraction cup.

[0007] Furthermore, the extraction cup body has a connecting ring on its outer periphery, a handle on one side of the connecting ring, an annular step on the bottom of the inner side of the connecting ring, an annular convex edge on the outer periphery of the top of the extraction cup body, the bottom of the extraction cup body is inserted into the connecting ring until the annular convex edge sits on the annular step, a first connecting part is provided on the inner side of the connecting ring above the annular step, a second connecting part is provided on the outer periphery of the bottom of the suspension device, the bottom of the suspension device is inserted into the connecting ring, a first sealing ring is provided between the suspension device and the annular convex edge, the first connecting part and the second connecting part are screwed together and the suspension device and the annular convex edge clamp the first sealing ring to form the detachable sealing connection.

[0008] The extraction cup has a simple structure and is easy to manufacture. The extraction cup is easy to clean separately. The extraction cup and the suspension device are connected by a connecting ring and sealed by a first sealing ring, which prevents steam from leaking out. At the same time, the first sealing ring acts as a buffer to prevent the extraction cup and the suspension device from colliding.

[0009] Furthermore, the first connecting part is an inverted L-shaped buckle, and the second connecting part is an L-shaped buckle. The horizontal part of the L-shaped buckle is provided with a limiting protrusion, and the inverted L-shaped buckle is provided with an arc-shaped groove. After the L-shaped buckle and the inverted L-shaped buckle are rotated and fastened, the limiting protrusion is placed in the arc-shaped groove so that the L-shaped buckle can automatically disengage from the inverted L-shaped buckle.

[0010] The connecting ring and suspension device are securely connected and not easily detached, ensuring safe use.

[0011] Furthermore, the bottom surface of the suspension device extends downward to form an insertion part, and an annular groove is provided on the outer periphery of the insertion part. The first sealing ring is inverted L-shaped and is fitted inside the annular groove. A sealing skirt is provided on the outer side of the vertical part of the first sealing ring. When the bottom surface of the suspension device and the annular protrusion clamp the horizontal part of the first sealing ring, the insertion part is inserted into the open opening at the top of the extraction cup, and the vertical part of the first sealing ring is also inserted into the open opening. The vertical part of the first sealing ring abuts against the extraction cup through the first sealing skirt.

[0012] The extraction cup is double-sealed with a sealing ring to prevent steam leakage, making it safe and reliable to use.

[0013] Furthermore, the suspension device is equipped with a detection device to identify whether the extraction cup is installed in place. The detection device includes a first micro switch, a guide rod, and a return spring. A limit groove is provided inside the suspension device, and a guide hole communicating with the limit groove is provided on the bottom surface of the suspension device. The horizontal part of the first sealing ring blocks the guide hole. The guide rod moves vertically within the limit groove. The first micro switch is located on one side of the limit groove. The guide rod has a limit part. The elastic force of the return spring pushes the guide rod to move downwards until the limit part and the bottom of the limit groove abut. After the lower end of the guide rod passes through the guide hole, it presses down on the horizontal part of the first sealing ring. When the extraction cup is installed, the extraction cup and the bottom surface of the suspension device clamp the horizontal part of the first sealing ring, and the guide rod moves upward to compress the spring. The upward movement of the guide rod triggers the first micro switch.

[0014] The first sealing ring prevents steam or foreign objects from entering the machine body through the guide hole. After the extraction cup is installed, it can also trigger the detection device. If the extraction cup is not installed or is detached, the water system stops releasing steam to prevent accidents.

[0015] Furthermore, the first lifting device includes a first motor, a first screw, and a nut. The nut is connected and fixed to the suspension device. The first motor is vertically mounted inside the machine body. The output end of the first motor is connected to the first screw. The first screw and the nut are threaded together. A vertical sliding fit guide structure is provided between the machine body and the suspension device. The guide structure prevents the nut from driving the suspension device to rotate. The first motor drives the first screw to rotate, and the nut drives the suspension device to move up and down.

[0016] The suspension device has a simple lifting structure and is easy to implement.

[0017] Furthermore, the suspension device is provided with a sleeve section, which is open only at the top. The sleeve section is connected and fixed to a nut. The first screw passes through the nut and is inserted into the sleeve section. The machine body is provided with a second micro switch. When the bottom surface of the first screw and the bottom surface of the sleeve section are abutted or close to each other, the suspension device rises and triggers the second micro switch, the first motor stops rotating, and the suspension device rises to the highest position.

[0018] The sleeve prevents the screw from protruding from the bottom surface of the suspension device and prevents steam from entering the suspension device. The second micro switch prevents the screw and suspension device from being damaged due to excessive compression.

[0019] Furthermore, the outlet is equipped with a sealing device, which includes a fixed part, a magnetic movable part, and a filter part. The fixed part is fixed inside the outlet, and the filter part is located on top of the fixed part. The top of the fixed part is connected to the inner cavity of the extraction cup through the filter part. The bottom of the fixed part is provided with a leakage hole. The magnetic movable part is placed inside the fixed part. The movable part seals the leakage hole under the action of gravity. The machine body is equipped with a second lifting device. The lifting end of the second lifting device is provided with a magnetic suction part. The second lifting device drives the magnetic suction part to move up and down. When the magnetic suction part moves to a preset horizontal height, the magnetic force of the magnetic suction part attracts the magnetic movable part to move. The bottom of the magnetic movable part and the leakage hole form a leakage gap.

[0020] Under normal conditions, the sealing device seals the liquid outlet, allowing steam to be retained in the extraction cup, improving the extraction effect, and keeping the extract in the extraction cup for easy removal by the user when needed.

[0021] Furthermore, the bottom surface of the inner cavity of the fixing part is hemispherical, and the leakage hole is provided at the lowest point of the inner cavity of the fixing part. The bottom surface of the magnetic movable part is a sealing hemisphere, and the center of gravity of the magnetic movable part is with the sealing hemisphere facing downwards, and the sealing hemisphere seals the leakage hole.

[0022] The sealing device is reasonably designed and easy to use.

[0023] Furthermore, when the magnetic suction part moves to a position level with or above the horizontal position of the magnetic moving part, the magnetic force of the magnetic suction part attracts the magnetic moving part to move horizontally or upward, and a leakage gap is formed between the bottom of the magnetic moving part and the leakage hole. When the magnetic suction part moves to a position below the horizontal position of the magnetic moving part, the magnetic force of the magnetic suction part tends to cause the magnetic moving part to move downward, and the magnetic moving part tightly seals the leakage hole.

[0024] The magnetic suction part and the magnetic moving part have a reasonable operating structure, and no connecting structure is required between them. Under normal conditions, the magnetic moving part keeps the leakage hole sealed. The extraction cup has a simple structure and is easy to clean.

[0025] Furthermore, the second lifting device includes a second motor, a second screw, and a limiting member. An installation groove is provided along the height direction inside the machine body. The output end of the second motor drives the second screw to rotate vertically. The second screw is threadedly connected to the screw hole of the limiting member in the installation groove. The limiting member and the installation groove are non-circularly fitted in the horizontal direction. The rotation of the second screw drives the limiting member to move up and down in the installation groove. The limiting member is provided with the magnetic suction part on the side facing the extraction cup.

[0026] The second lifting device is simple in design and easy to implement.

[0027] Furthermore, it also includes a liquid receiving container with a vent at the top opening, an annular groove at the bottom outer periphery of the extraction cup, and a second sealing ring fitted inside the annular groove. The second sealing ring has an L-shaped cross-section, with the inner side of the vertical part of the second sealing ring abutting against the extraction cup, and a second sealing skirt on the outer side of the vertical part of the second sealing ring. The top surface of the horizontal part of the second sealing ring abuts against the bottom surface of the extraction cup. When the first lifting device lowers the bottom of the suspension device and the extraction cup, the annular groove of the extraction cup is inserted into the liquid receiving container, and the second sealing ring abuts against the liquid receiving container through the second sealing skirt. A vent gap is formed between the second sealing ring and the vent, and steam enters the extraction cup through the extraction cup. The steam inside the extraction cup is discharged from the vent gap.

[0028] Steam enters the receiving container along with the extractant. If the extraction vessel and the receiving container are sealed together, the steam will escape through the vent gap, making it safer to use. The second sealing ring prevents the extraction vessel and the receiving container from colliding, acting as a buffer.

[0029] Furthermore, a holding platform is provided at the bottom of the machine body below the liquid outlet. The holding platform is used to place the liquid receiving container. A heating device is provided inside the holding platform, and the heat from the heating device is used to heat the liquid receiving container.

[0030] The extraction machine has a liquid receiving container with heat preservation function.

[0031] Compared with existing technologies, this invention features an extraction cup whose volume is not limited by the receiving container, allowing for the placement of extraction materials such as food and medicinal herbs. The extraction cup can be easily added and replaced without being restricted by the receiving container. Furthermore, the extraction cup can be sealed, improving the steam extraction effect. The extraction cup is also easily disassembled for convenient placement and cleaning of extraction materials, ensuring safe and hygienic use. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of Embodiment 1.

[0033] Figure 2 This is a schematic diagram of the exploded structure of Example 1.

[0034] Figure 3 This is a cross-sectional structural diagram of Example 1.

[0035] Figure 4 for Figure 3 Enlarged schematic diagram of part A in the middle.

[0036] Figure 5 This is a partial exploded view of the structure of Example 1.

[0037] Figure 6 This is a cross-sectional structural diagram of the fixing ring device and the liquid receiving container of the extraction cup in Example 1. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] Example 1, see Figure 1-6 As shown, an extraction machine includes a body 1, a water system 2, a suspension device 3, a first lifting device 4, a detection device 5, an extraction cup 6, a sealing device 7, a second lifting device 8, and a liquid receiving container 9.

[0040] The water system 2 includes a water tank 21, a three-way valve 22, a water pump 23, and a steam generator 24. The inlets of the water tank 21, the three-way valve 22, the water pump 23, and the steam generator 24 are connected by a water pipe 25, and the outlet of the steam generator 24 is connected by a flexible steam pipe 26. The water tank 21 is detachably mounted on one side of the machine body 1. The other side of the machine body 1 has a protruding suspension part 11, which is equipped with a control device 10. The suspension device 3 is mounted at the bottom of the suspension part 11 and can be moved up and down by a first lifting device 4. The extraction cup 6 is detachably connected to the bottom of the suspension device 3, and the bottom of the extraction cup 6 has a liquid outlet 60. A holding platform 12 is located below the liquid outlet 60 at the bottom of the machine body 1, and a receiving container 9 is placed on the holding platform 12. A heat-conducting plate 13 is provided on the top surface of the holding platform 12, and a heating device 14 is provided inside the holding platform 12 corresponding to the heat-conducting plate 13. The heat from the heating device 14 is conducted to the receiving container 9 through the heat-conducting plate 13. In this embodiment, the heating device 14 is a heating film, and the heat-conducting plate 13 is a heat-conducting aluminum plate. The heating film is fixed to the top surface of the heat-conducting aluminum plate, and the heat-conducting aluminum plate protrudes to the top surface of the holding platform 12. The liquid receiving container 9 sits on the heat-conducting aluminum plate. Of course, as another option, the top of the holding platform 12 is made of an integral heat-conducting material, and the heating device of the holding platform 12 directly heats the liquid receiving container 9 through the top of the holding platform 12.

[0041] The first lifting device 4 includes a first motor 41, a first screw 42, and a nut 43. The nut 43 is connected and fixed to the suspension device 3. The first motor 41 is vertically mounted in the suspension part 11 of the body 1. The output end of the first motor 41 is connected to the first screw 42. The first screw 42 and the nut 43 are threaded together. A vertical sliding fit guide structure is provided between the body 1 and the suspension device 3. The guide structure prevents the nut 43 from driving the suspension device 3 to rotate. The first motor 41 drives the first screw 42 to rotate, and the nut 43 drives the suspension device 3 to move up and down. In this embodiment, the sliding fit guide structure includes a slide rod 31 provided on the suspension device 3 and a positioning hole 15 provided on the suspension part 11. The slide rod 31 is inserted into the positioning hole 15 and moves up and down relative to the positioning hole 15.

[0042] The suspension device 3 has a sleeve portion 32, which is open only at the top. The sleeve portion 32 is connected and fixed to a nut 43. A first screw 42 passes through the nut 43 and is inserted into the sleeve portion 32. The body 1 is equipped with a second micro switch 16. When the bottom surface of the first screw 42 abuts or approaches the bottom surface of the sleeve portion 32, the suspension device 3 rises and triggers the second micro switch 16, the first motor 41 stops rotating, and the suspension device 3 rises to its highest position. In this embodiment, a nut sleeve 44 is provided at the top of the sleeve portion 32, and the nut sleeve 44 is connected and fixed to the nut 43. To save space, preferably, the suspension device 3 and the suspension part 11 are plugged into each other.

[0043] An extraction cup body 6 has a connecting ring 62 on its outer periphery, a handle portion 63 on one side of the connecting ring 62, and an annular step 64 on the bottom inner side of the connecting ring 62. An annular convex edge 61 is provided on the outer periphery of the top of the extraction cup body 6. The bottom of the extraction cup body 6 is inserted into the connecting ring 62 until the annular convex edge 61 sits on the annular step 64. A first connecting portion 65 is provided on the inner side of the connecting ring 62 above the annular step 64. A second connecting portion 33 is provided on the outer periphery of the bottom of the suspension device 3. The bottom of the suspension device 3 is inserted into the connecting ring 62. A first sealing ring 34 is provided between the suspension device 3 and the annular convex edge 61. The first connecting portion 65 and the second connecting portion 33 are screwed together, and the suspension device 3 and the annular convex edge 61 clamp the first sealing ring 34 to form a detachable sealing connection. The first connecting part 65 is an inverted L-shaped buckle, and the second connecting part 33 is an L-shaped buckle. The horizontal part of the L-shaped buckle has a limiting protrusion 35, and the inverted L-shaped buckle has an arc-shaped groove 66. After the L-shaped buckle and the inverted L-shaped buckle are rotated and fastened, the limiting protrusion 35 is placed in the arc-shaped groove 66, allowing the L-shaped buckle to automatically detach from the inverted L-shaped buckle. Under normal conditions, gravity causes the limiting protrusion 35 to insert into the arc-shaped groove 66. After both are positioned, the L-shaped buckle is less likely to detach from the inverted L-shaped buckle on its own.

[0044] The bottom surface of the suspension device 3 extends downward to have an insertion part 36. The outer periphery of the insertion part 36 is provided with an annular groove 37. The first sealing ring 34 is inverted L-shaped and is fitted inside the annular groove 37. The vertical part of the first sealing ring 34 is provided with a first sealing skirt. When the bottom surface of the suspension device 3 and the annular protrusion 61 clamp the horizontal part of the first sealing ring 34, the insertion part 36 is inserted into the open opening at the top of the extraction cup 6, and the vertical part of the first sealing ring 34 is also inserted into the open opening. The vertical part of the first sealing ring 34 abuts against the extraction cup 6 through the first sealing skirt.

[0045] The suspension device 3 is equipped with a detection device 5, which is used to identify whether the extraction cup 6 is installed in place. The detection device 5 includes a first micro switch 51, a guide rod 52, and a return spring 53. The suspension device 3 is provided with a limiting groove 50, and the bottom surface of the suspension device 3 is provided with a guide hole 38 that communicates with the limiting groove 50. The horizontal part of the first sealing ring 34 blocks the guide hole 38. The guide rod 52 moves vertically within the limiting groove 50. The first micro switch 51 is located on one side of the limiting groove 50. The guide rod 52 is provided with a limiting part 54. The elastic force of the return spring 53 pushes the guide rod 52 to move downward until the limiting part 54 and the bottom of the limiting groove 50 abut. The lower end of the guide rod 52 passes through the guide hole 38 and presses down on the horizontal part of the first sealing ring 34. When the extraction cup 6 is installed, the extraction cup 6 and the bottom surface of the suspension device 3 clamp the horizontal part of the first sealing ring 34, and the guide rod 52 moves upward to compress the spring. The upward movement of the guide rod 52 triggers the first micro switch 51. The top of the return spring 53 abuts against the suspension part 11, and the bottom of the return spring 53 abuts against the limiting part 54.

[0046] In this embodiment, the suspension device 3 is provided with a vertically arranged conduit section 39. The top of the conduit section 39 is connected and fixed to the flexible steam pipe 26. The bottom surface of the suspension device 3 is provided with an upper recess 30. The bottom of the conduit section 39 extends to the bottom surface of the upper recess 30, and the bottom opening of the conduit section 39 forms a steam outlet 20. The flexible steam pipe 26 refers to a pipe with a reserved length, allowing one end to move up and down with the suspension device 3.

[0047] The outlet 60 is equipped with a sealing device 7, which includes a fixing part 71, a magnetic movable part 72, and a filter part 73. The fixing part 71 is fixed inside the outlet 60, and the filter part 73 is located on top of the fixing part 71. The top of the fixing part 71 is connected to the inner cavity of the extraction cup 6 through the filter part 73. The bottom of the fixing part 71 is provided with a leakage hole 74. The magnetic movable part 72 is placed inside the fixing part 71, and the movable part seals the leakage hole 74 under the action of gravity. The second lifting device 8 is provided inside the machine body 1. The lifting end of the second lifting device 8 is provided with a magnetic suction part 80. The second lifting device 8 drives the magnetic suction part 80 to move up and down. When the magnetic suction part 80 moves to a preset horizontal height, the magnetic force of the magnetic suction part 80 attracts the magnetic movable part 72 to move, and the bottom of the magnetic movable part 72 and the leakage hole 74 form a leakage gap. Specifically, the bottom surface of the inner cavity of the fixing part 71 is hemispherical, and the leakage hole 74 is provided at the lowest point of the inner cavity of the fixing part 71. The bottom surface of the magnetic movable part 72 is a sealing hemispherical surface 75, and the center of gravity of the magnetic movable part 72 is with the sealing hemispherical surface 75 facing downwards, sealing the leakage hole 74. In this embodiment, the fixing part 71 is a shell with a small thickness, so the magnetic movable part 72 is inserted into the leakage hole 74 through the sealing hemispherical surface 75, and the magnetic movable part 72 is not easy to wobble from side to side. The magnetic attraction part 80 is a magnet.

[0048] When the magnetic suction part 80 moves to a position level with or above the magnetic movable part 72, the magnetic force of the magnetic suction part 80 attracts the magnetic movable part 72 to move horizontally or upward. The bottom of the magnetic movable part 72 and the leakage hole 74 form a leakage gap. When the magnetic suction part 80 moves to a position below the horizontal position of the magnetic movable part 72, the magnetic force of the magnetic suction part 80 tends to cause the magnetic movable part 72 to move downward. The magnetic movable part 72 tightly seals the leakage hole 74.

[0049] The second lifting device 8 includes a second motor 81, a second screw 82, and a limiting member 83. The body 1 has a mounting groove 17 along the height direction. The output end of the second motor 81 drives the second screw 82 to rotate vertically. The second screw 82 is threadedly connected to the screw hole of the limiting member 83 in the mounting groove 17. The limiting member 83 and the mounting groove 17 are non-circularly fitted in the horizontal direction. The rotation of the second screw 82 causes the limiting member 83 to move up and down in the mounting groove 17. The limiting member 83 has the magnetic suction part 80 on the side facing the extraction cup 6.

[0050] The liquid receiving container 9 has a vent 91 at its top opening. The extraction cup 6 has an annular groove 67 on its bottom outer periphery. A second sealing ring 68 is fitted inside the annular groove 67. The second sealing ring 68 has an L-shaped cross-section. The inner side of the vertical part of the second sealing ring 68 abuts against the extraction cup 6, and a second sealing skirt is provided on the outer side of the vertical part of the second sealing ring 68. The top surface of the horizontal part of the second sealing ring 68 abuts against the bottom surface of the extraction cup 6. When the first lifting device 4 lowers the bottom of the suspension device 3 and the extraction cup 6, the annular groove 67 of the extraction cup 6 is inserted into the liquid receiving container 9. The second sealing ring 68 abuts against the liquid receiving container 9 through the second sealing skirt. A vent gap is formed between the second sealing ring 68 and the vent 91. Steam enters the extraction cup 6 through the extraction cup 6 and is discharged from the vent gap.

[0051] The water pump 23, steam generator 24, first motor 41, first micro switch 51, second micro switch 16, second motor 81, and heating device are all electrically connected to the control device 10.

[0052] The first lifting device 4, via the suspension device 3, moves the extraction cup 6 upwards, ensuring the bottom of the extraction cup 6 does not interfere with the placement and removal of the liquid receiving container 9. Generally, in the initial state, the suspension device 3 is raised to its highest horizontal position. Rotating the connecting ring 62 via the handle 63 disengages the L-shaped and inverted L-shaped buckles, allowing the extraction cup 6 to detach, and the user can place extraction materials (such as herbs, tea leaves, etc.) into the extraction cup 6. Then, the suspension device 3 and connecting ring 62 are reconnected, and the connecting ring 62 is rotated in the opposite direction to secure the L-shaped and inverted L-shaped buckles. The suspension device 3 and extraction cup 6 clamp the first sealing ring 34, sealing the top of the extraction cup 6, and the steam outlet 20 communicates with the inner cavity of the extraction cup 6. The extraction cup 6, through the first sealing ring 34, presses against the guide rod 52, triggering the first micro switch 51. The first micro switch 51 sends a signal, allowing the control device 10 to control the steam generator.

[0053] Steam generated by water system 2 enters extraction cup 6 from steam outlet 20 to achieve extraction and form extract. After extraction, receiving container 9 is placed on holding platform 12. Second lifting device 8 drives magnetic suction part 80 to rise. Magnetic suction part 80 attracts magnetic moving part 72, causing extract to flow through leakage gap from leakage hole 74 to receiving container 9. Some steam is also discharged from leakage hole 74.

[0054] If the first lifting device 4 moves the extraction cup 6 downward through the suspension device 3, so that the bottom of the extraction cup 6 is inserted into the liquid receiving container 9, the extract and some steam enter the liquid receiving container 9 through the leakage hole 74. The steam in the liquid receiving container 9 can be discharged through the steam exhaust gap. At the same time, the heating device 14 works to keep the extract in the liquid receiving container 9 within a certain temperature range.

[0055] The terms used in this utility model, such as "first," "second," etc., do not indicate any order, quantity, or importance, but are only used for distinction.

[0056] In this invention, terms such as "a" or "an" are used to indicate not a limitation on the quantity, but rather to indicate the existence of at least one of the mentioned objects.

[0057] In this utility model, terms indicating direction or location such as front end, rear end, top, bottom, side, longitudinal, transverse, middle, center, outside, inside, horizontal, vertical, left, right, above, below, etc., are used to indicate relative positions rather than absolute positions.

[0058] Terms used in this invention, such as "approximately," "overall," "approximately," and "similar," are limiting terms used to indicate features that exist but allow for certain deviations. The amount of deviation allowed may vary depending on the specific context.

Claims

1. An extraction machine, comprising a body, the body having a water system capable of generating steam, the water system having a steam outlet, characterized in that, The machine body is equipped with a suspension device and an extraction cup. The bottom of the suspension device and the top of the extraction cup are detachably and sealed. The steam outlet is located on the bottom surface of the suspension device and communicates with the inner cavity of the extraction cup. The machine body is equipped with a first lifting device, which drives the suspension device to move up and down. The machine body is equipped with a liquid receiving container below the extraction cup, and the bottom of the extraction cup is equipped with a liquid outlet.

2. The extraction machine according to claim 1, characterized in that, The extraction cup has a connecting ring on its outer periphery, a handle on one side of the connecting ring, an annular step on the bottom of the inner side of the connecting ring, an annular convex edge on the outer periphery of the top of the extraction cup, and the bottom of the extraction cup is inserted into the connecting ring until the annular convex edge sits on the annular step. A first connecting part is provided on the inner side of the connecting ring above the annular step, and a second connecting part is provided on the outer periphery of the bottom of the suspension device. The bottom of the suspension device is inserted into the connecting ring, and a first sealing ring is provided between the suspension device and the annular convex edge. The first connecting part and the second connecting part are screwed together, and the suspension device and the annular convex edge clamp the first sealing ring to form the detachable sealing connection.

3. The extraction machine according to claim 2, characterized in that, The first connecting part is an inverted L-shaped buckle, and the second connecting part is an L-shaped buckle. The horizontal part of the L-shaped buckle is provided with a limiting protrusion, and the inverted L-shaped buckle is provided with an arc-shaped groove. After the L-shaped buckle and the inverted L-shaped buckle are rotated and fastened, the limiting protrusion is placed in the arc-shaped groove so that the L-shaped buckle can automatically disengage from the inverted L-shaped buckle.

4. The extraction machine according to claim 2, characterized in that, The bottom of the suspension device extends downward to have an insertion part, and the outer periphery of the insertion part is provided with an annular groove. The first sealing ring is inverted L-shaped and is fitted inside the annular groove. The vertical part of the first sealing ring is provided with a sealing skirt on its outer side. When the bottom surface of the suspension device and the annular protrusion clamp the horizontal part of the first sealing ring, the insertion part is inserted into the open opening at the top of the extraction cup, and the vertical part of the first sealing ring is also inserted into the open opening. The vertical part of the first sealing ring abuts against the extraction cup through the first sealing skirt.

5. The extraction machine according to claim 4, characterized in that, The suspension device is equipped with a detection device to identify whether the extraction cup is installed in place. The detection device includes a first micro switch, a guide rod, and a return spring. A limit groove is provided inside the suspension device, and a guide hole communicating with the limit groove is provided on the bottom surface of the suspension device. The horizontal part of the first sealing ring blocks the guide hole. The guide rod moves vertically within the limit groove. The first micro switch is located on one side of the limit groove. The guide rod has a limit part. The elastic force of the return spring pushes the guide rod to move downward until the limit part and the bottom of the limit groove abut. After the lower end of the guide rod passes through the guide hole, it presses down on the horizontal part of the first sealing ring. When the extraction cup is installed, the extraction cup and the bottom surface of the suspension device clamp the horizontal part of the first sealing ring, and the guide rod moves upward to compress the spring. The upward movement of the guide rod triggers the first micro switch.

6. The extraction machine according to claim 1, characterized in that, The first lifting device includes a first motor, a first screw, and a nut. The nut is connected and fixed to the suspension device. The first motor is vertically installed inside the machine body. The output end of the first motor is connected to the first screw. The first screw and the nut are threaded together. A vertical sliding fit guide structure is provided between the machine body and the suspension device. The guide structure prevents the nut from driving the suspension device to rotate. The first motor drives the first screw to rotate, and the nut drives the suspension device to move up and down.

7. The extraction machine according to claim 6, characterized in that, The suspension device has a sleeve section, which is open only at the top. The sleeve section is connected and fixed to a nut. The first screw passes through the nut and is inserted into the sleeve section. The machine body is equipped with a second micro switch. When the bottom surface of the first screw and the bottom surface of the sleeve section are close to each other, the suspension device rises and triggers the second micro switch, the first motor stops rotating, and the suspension device rises to the highest position.

8. The extraction machine according to claim 1, characterized in that, The liquid outlet is equipped with a sealing device, which includes a fixed part, a magnetic movable part, and a filter part. The fixed part is fixed inside the liquid outlet, and the filter part is located on the top of the fixed part. The top of the fixed part is connected to the inner cavity of the extraction cup through the filter part. The bottom of the fixed part is provided with a leakage hole. The magnetic movable part is placed inside the fixed part. The movable part seals the leakage hole under the action of gravity. The machine body is provided with a second lifting device. The lifting end of the second lifting device is provided with a magnetic suction part. The second lifting device drives the magnetic suction part to move up and down. When the magnetic suction part moves to a preset horizontal height, the magnetic force of the magnetic suction part attracts the magnetic movable part to move. The bottom of the magnetic movable part and the leakage hole form a leakage gap.

9. The extraction machine according to claim 8, characterized in that, The bottom surface of the inner cavity of the fixing part is hemispherical, and the leakage hole is provided at the lowest point of the inner cavity of the fixing part. The bottom surface of the magnetic movable part is a sealing hemisphere, and the center of gravity of the magnetic movable part is with the sealing hemisphere facing downwards, and the sealing hemisphere seals the leakage hole.

10. The extraction machine according to claim 8, characterized in that, The second lifting device includes a second motor, a second screw, and a limiting member. The machine body is provided with an installation groove along the height direction. The output end of the second motor drives the second screw to rotate vertically. The second screw is threadedly connected to the screw hole of the limiting member in the installation groove. The limiting member and the installation groove are non-circularly fitted in the horizontal direction. The rotation of the second screw drives the limiting member to move up and down in the installation groove. The limiting member is provided with the magnetic suction part on the side facing the extraction cup.

11. The extraction machine according to claim 8, characterized in that, When the magnetic suction part moves to a position level with or above the horizontal position of the magnetic moving part, the magnetic force of the magnetic suction part attracts the magnetic moving part to move horizontally or upward, and a leakage gap is formed between the bottom of the magnetic moving part and the leakage hole. When the magnetic suction part moves to a position below the horizontal position of the magnetic moving part, the magnetic force of the magnetic suction part tends to make the magnetic moving part move downward, and the magnetic moving part tightly seals the leakage hole.

12. The extraction machine according to claim 1, characterized in that, It also includes a liquid receiving container with a vent at the top opening, an annular groove at the bottom outer periphery of the extraction cup, and a second sealing ring fitted inside the annular groove. The second sealing ring has an L-shaped cross-section, with the inner side of the vertical part of the second sealing ring abutting against the extraction cup, and a second sealing skirt on the outer side of the vertical part of the second sealing ring. The top surface of the horizontal part of the second sealing ring abuts against the bottom surface of the extraction cup. When the first lifting device lowers the bottom of the suspension device and the extraction cup, the annular groove of the extraction cup is inserted into the liquid receiving container, and the second sealing ring abuts against the liquid receiving container through the second sealing skirt. A vent gap is formed between the second sealing ring and the vent, and steam enters the extraction cup through the extraction cup and is discharged from the vent gap inside the extraction cup.

13. The extraction machine according to claim 12, characterized in that, A holding platform is located at the bottom of the machine body below the liquid outlet. The holding platform is used to place the liquid receiving container. A heating device is installed inside the holding platform, and the heat from the heating device is used to heat the liquid receiving container.

Images