A dynamic extraction device for coffee

Abstract

This invention discloses a dynamic coffee extraction device, specifically relating to the field of coffee extraction technology. The extraction device comprises a water supply section and an extraction section. The water supply section includes a hollow base block with an intermittent water supply mechanism inside. The extraction section includes an extraction cylinder composed of an upper cylinder and a lower cylinder. A connecting component is provided between the opposite ends of the outer circumferences of the upper and lower cylinders, and the lower cylinder is fixedly mounted on the top of the base block. Inside the extraction cylinder, a pressing component and an extraction component are arranged from top to bottom. A feed pipe is connected to the top of the upper cylinder. A handle is fixedly provided at the top of the base block away from the lower cylinder. A grounds removal mechanism is also provided inside the lower cylinder. This invention utilizes intermittently pressurized water to directly and dynamically extract compressed coffee powder under pressure. The operation is simple and convenient, and it allows for quick and easy removal of extracted residue.

Description

Technical Field

[0001] This invention relates to the field of coffee extraction technology, and more specifically, to a dynamic coffee extraction device. Background Technology

[0002] Extraction, also known as solvent extraction or liquid-liquid extraction, is a unit operation that separates a mixture by utilizing the different solubilities of components in a solvent. It is a method that uses the difference in solubility or partition coefficient of a substance in two immiscible (or slightly soluble) solvents to transfer a solute from one solvent to another.

[0003] As people's living standards continue to improve, more and more people enjoy drinking coffee, and their demands for coffee machine functions are also increasing. In the coffee preparation process, the extraction of coffee liquid is one of the key factors determining the taste of coffee. Currently, the main coffee extraction processes are coffee machine extraction and pour-over extraction. Pour-over extraction is increasingly favored by coffee lovers due to its flexibility in controlling extraction parameters. However, since all parameters in pour-over extraction are completely manually controlled, it requires a very high level of skill from the operator. Therefore, an easily controllable automatic extraction device is needed.

[0004] Existing coffee extraction devices typically involve first atomizing water to moisten coffee grounds, then introducing high-pressure gas to complete the extraction process, which is quite complex.

[0005] The information disclosed in the background section is only intended to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide a dynamic coffee extraction device that uses intermittently injected water to directly and dynamically extract compressed coffee powder, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a dynamic coffee extraction device, which comprises a water supply section and an extraction section. The water supply section includes a hollow seat block, and an intermittent water supply mechanism is provided inside the seat block. The extraction section includes an extraction cylinder composed of an upper cylinder and a lower cylinder. A connecting component is provided between the opposite ends of the outer circumferences of the upper cylinder and the lower cylinder, and the lower cylinder is fixedly installed on the top of the seat block. A pressing component and an extraction component are provided inside the extraction cylinder from top to bottom. A feed pipe is connected to the top of the upper cylinder. A handle is fixedly provided at the top of the seat block away from the lower cylinder. A residue removal mechanism is also provided inside the lower cylinder.

[0008] In a preferred embodiment, the intermittent water supply mechanism includes a sliding block slidably connected inside the seat block. A fan-shaped through groove is formed at the center of one side of the sliding block. A motor is fixedly installed on one side of the seat block at the position corresponding to the fan-shaped through groove. A straight plate is fixedly connected to the output shaft end of the motor. A rotating rod is fixedly installed at the other end of the straight plate. A collar is installed on the outer circumference of the rotating rod away from the straight plate through a bearing drive. Two straight bars are fixedly arranged collinearly on the outer circumference of the collar. A cylindrical block that fits against the inner wall of the fan-shaped through groove is fixedly installed at the opposite ends of the two straight bars. A water inlet pipe is connected to one side of the seat block and a water outlet pipe is connected to the top at the position corresponding to the extraction cylinder. The other end of the water inlet pipe is connected to an external water source, and a check valve is installed at the connection between the water inlet pipe and the seat block.

[0009] The beneficial effect of adopting the above-mentioned further scheme is that it enables the intermittent injection of water into the extraction zone.

[0010] In a preferred embodiment, the pressing assembly includes a lifting cylinder disposed inside the upper cylinder and a cylinder fixedly installed at the center of the top of the upper cylinder. A shaft is rotatably mounted on the axis of the lifting cylinder via a bearing, and the telescopic end of the cylinder is fixedly connected to the top of the shaft. A gear column is fixedly sleeved on the outer circumferential surface of the shaft at the top of the lifting cylinder. A horizontal plate is fixedly mounted on the inner circumferential surface of the upper cylinder. A second motor is fixedly mounted at the bottom of the horizontal plate. A gear plate that meshes with the gear column is fixedly mounted at the output shaft end of the second motor. A set of two fan-shaped slots is opened at the top and bottom of the lifting cylinder, and the two sets of fan-shaped slots are arranged in a cross shape. Two fan-shaped plates that are symmetrical about the shaft are fixedly installed on the outer circumferential surface of the shaft at the top and bottom of the lifting cylinder. Non-through insertion holes are opened on the fan-shaped plate at the bottom of the lifting cylinder and on the bottom end face of the lifting cylinder.

[0011] The advantage of adopting the above-mentioned further solution is that the coffee powder can be compacted using the sealing lifting cylinder after the feeding is completed.

[0012] In a preferred embodiment, the extraction assembly includes a water pan fixedly disposed at the bottom of the inner cavity of the lower cylinder and a liquid collection channel fixedly sleeved on the bottom of the outer peripheral surface of the lower cylinder. The top end of the water outlet pipe passes through the top end of the seat block and the bottom end of the water pan in sequence. The top of the water pan is fixedly provided with multiple water supply pipes communicating with the inner cavity of the water pan. Each water supply pipe has multiple downwardly inclined water outlet holes on its outer peripheral surface. One-way valves are installed at the connection points between the water outlet pipes and the water supply pipes and the water pan. Multiple drain holes are provided at the bottom of the outer peripheral surface of the lower cylinder. The bottom of the outer peripheral surface of the liquid collection channel is connected to the liquid outlet pipe.

[0013] The beneficial effect of adopting the above-mentioned further solution is that it allows water to be intermittently forced into the coffee powder area from the water outlet on the water supply pipe for dynamic pressure extraction.

[0014] In a preferred embodiment, the slag removal mechanism includes a pad that is movably attached to the upper surface of the water pan. The top of the pad has a through hole corresponding to the position of each water supply pipe, and each water supply pipe is movably inserted into the through hole at the corresponding position. An L-shaped hanging plate is fixedly provided on the outer circumferential surface of the pad, and a limiting groove is provided on the inner circumferential surface of the lower cylinder corresponding to the position of the L-shaped hanging plate. A locking slot is provided at the top of the limiting groove.

[0015] The advantage of adopting the above-mentioned further solution is that it makes it easier to lift the pad to discharge the residue after extraction.

[0016] In a preferred embodiment, the connecting assembly includes an ear block fixedly disposed at one edge of the opposite end of the outer periphery of the upper and lower cylinders. A round rod is fixedly disposed at the center of the top of the ear block on the lower cylinder. A vertical groove is vertically opened through the center of the top of the ear block on the upper cylinder. The round rod is movably sleeved inside the groove. A limiting plate is fixedly disposed at the top of the round rod, the lower end face of which fits against the top face of the ear block on the upper cylinder.

[0017] The beneficial effect of adopting the above-mentioned further solution is that it can achieve the staggered opening of the upper cylinder and the lower cylinder.

[0018] In a preferred embodiment, two guide blocks are fixedly provided at the top of the outer peripheral surface of the lifting cylinder, which are symmetrical about the shaft. A guide groove is provided on the inner peripheral surface of the upper cylinder at the position corresponding to the guide block, and the bottom end of the guide groove is downward and through. The guide block is slidably connected to the inside of the guide groove at the corresponding position.

[0019] The beneficial effect of adopting the above-mentioned further solution is that it can ensure that the lifting cylinder can move in the vertical direction.

[0020] In a preferred embodiment, the inner end of the L-shaped mounting plate away from the pad is provided as an inclined surface.

[0021] The advantage of adopting the above-mentioned further solution is that it makes it easier to lift the pad.

[0022] The technical effects and advantages of this invention are as follows:

[0023] This invention uses an intermittent water supply mechanism to intermittently press water into compacted coffee powder, thereby using continuously intermittently pressurized water to dynamically extract the compacted coffee powder under pressure. This simplifies the complex operation of traditional processes, which involves atomizing water to wet the coffee powder and then introducing high-pressure gas to pressurize and complete the extraction. The structure is ingeniously designed and the operation is convenient and quick.

[0024] This invention, by setting up a slag removal mechanism, allows the upper cylinder to be deflected around the central axis of the round rod, exposing the complete inner cavity of the lower cylinder. The L-shaped hanging plate is then lifted upwards to raise the pad plate, which in turn drives the slag upwards, making cleaning convenient and quick. Attached Figure Description

[0025] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the present invention. The embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 This is a cross-sectional view of the connection between the water tray and the water supply pipe of the present invention.

[0028] Figure 3 This is a partial structural diagram of the bottom of the lifting cylinder of the present invention.

[0029] Figure 4 This is an assembly diagram of the shaft and sector plate of the present invention.

[0030] Figure 5 This is a schematic diagram of the connection structure between the gear post and the cylinder of the present invention.

[0031] Figure 6 This is a schematic diagram of the connection structure between the lower cylinder and the upper cylinder of the present invention.

[0032] Figure 7 For the present invention Figure 1 Enlarged view of section A in the middle.

[0033] Figure 8 This is a schematic diagram of the pad structure of the present invention.

[0034] Figure 9 This is a cross-sectional view of the lower cylinder of the present invention.

[0035] The attached diagram is labeled as follows: 1. Seat block; 2. Intermittent water supply mechanism; 21. Sliding block; 22. Sector-shaped channel; 23. Motor I; 24. Straight plate; 25. Rotating rod; 26. Collar; 27. Straight bar; 28. Cylindrical block; 29. ​​Inlet pipe; 210. Outlet pipe; 3. Extraction cylinder; 4. Pressing assembly; 41. Lifting cylinder; 42. Shaft; 43. Gear column; 44. Cylinder; 45. Horizontal plate; 46. Motor II; 47. Gear plate; 48. Sector-shaped slot; 49. Sector-shaped plate; 410. Insertion hole; 5. Extraction assembly; 51. Water pan; 52. Water supply pipe; 53. Outlet hole; 54. One-way valve; 55. Drain hole; 56. Collection channel; 57. Outlet pipe; 6. Sludge removal mechanism; 61. Pad; 62. Perforation; 63. L-shaped hanging plate, 64 limiting groove, 65 bayonet, 7 feed pipe, 8 handle, 9 guide groove, 10 guide block, 11 ear block, 12 column groove, 13 round rod, 14 limit plate. Detailed Implementation

[0036] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that the description of this disclosure will be more complete and fully convey the concept of the exemplary embodiments to those skilled in the art. The drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted.

[0037] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more exemplary embodiments. Numerous specific details are provided in the following description to give a full understanding of exemplary embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced with one or more of the specific details omitted, or other methods, components, steps, etc., can be employed. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this disclosure. Example 1

[0038] Refer to the instruction manual appendix Figure 1-7 According to an embodiment of the present invention, a dynamic coffee extraction device is provided. The extraction device consists of a water supply section and an extraction section. The water supply section includes a hollow seat block 1, and an intermittent water supply mechanism 2 is provided inside the seat block 1. The extraction section includes an extraction cylinder 3 composed of an upper cylinder and a lower cylinder. A connecting component is provided between the opposite ends of the outer peripheral surfaces of the upper cylinder and the lower cylinder, and the lower cylinder is fixedly installed on the top of the seat block 1. A pressing component 4 and an extraction component 5 are provided inside the extraction cylinder 3 from top to bottom. A feed pipe 7 is connected to the top of the upper cylinder. A handle 8 is fixedly provided at the top of the seat block 1 away from the lower cylinder.

[0039] It should be noted that during the coffee extraction process, the intermittent water supply mechanism 2 is first connected to an external water source, and coffee powder is added into the extraction cylinder through the feed pipe 7. Then, the pressing component 4 and the extraction component 5 work together to complete the extraction of the coffee powder.

[0040] Specifically, the connecting assembly includes an ear block 11 fixedly disposed at one edge of the opposite end of the outer periphery of the upper and lower cylinders. A round rod 13 is fixedly disposed at the center of the top of the ear block 11 on the lower cylinder. A vertical groove 12 is vertically opened through the center of the top of the ear block 11 on the upper cylinder. The round rod 13 is movably sleeved inside the groove 12. A limiting plate 14 is fixedly disposed at the top of the round rod 13, the lower end face of which is in contact with the top face of the ear block 11 on the upper cylinder. The limiting plate 14 can prevent the upper and lower cylinders from separating during the extraction process.

[0041] It should be noted that, without the action of external force, the upper cylinder will not deflect around the central axis of the round rod 13. During the assembly of the extraction cylinder 3, the round rod 13 at the center of the top of the lug 11 on the lower cylinder passes through the column groove 12 at the center of the top of the lug 11 on the upper cylinder, and the lug 11 on the upper cylinder is limited by the limiting plate 14, so that the upper cylinder can only deflect around the central axis of the round rod 13.

[0042] Specifically, the intermittent water supply mechanism 2 includes a sliding block 21 slidably connected inside the seat block 1. A fan-shaped through groove 22 is opened through the center of one side of the sliding block 21. A motor 23 is fixedly installed on one side of the inner cavity of the seat block 1 at the position corresponding to the fan-shaped through groove 22. A straight plate 24 is fixedly connected to the end of the output shaft of the motor 23. A rotating rod 25 is fixedly installed at the other end of the straight plate 24. A collar 26 is installed on the outer circumference of the rotating rod 25 away from the straight plate 24 through a bearing drive. Two straight bars 27 are fixedly arranged collinearly on the outer circumference of the collar 26. A cylindrical block 28 that fits against the inner wall of the fan-shaped through groove 22 is fixedly installed at the opposite ends of the two straight bars 27. A water inlet pipe 29 is connected to one side of the seat block 1 and a water outlet pipe 210 is connected to the top corresponding to the position of the extraction cylinder 3. The other end of the water inlet pipe 29 is connected to an external water source, and a check valve is installed at the connection between the water inlet pipe 29 and the seat block 1.

[0043] It should be noted that the outer circumference of the sliding block 21, which is parallel to the water supply direction of the inlet pipe 29, is covered with a sealing gasket to prevent water leakage from the water storage chamber formed between the sliding block 21 and the inlet pipe 29. During intermittent water supply, the motor 23 is started by an external controller, driving the straight plate 24 to move in a circular motion within the fan-shaped through groove 22, thereby causing the rotating rod 25 to rotate. Since the collar 26 is rotatably mounted on the outside of the rotating rod 25 via bearings, the two straight bars 27, along with the rotating rod 25, swing up and down together with the collar 26 as the rod 25 rotates. The sliding block 21 is pushed to slide left and right inside the seat block 1. During this process, when the sliding block 21 moves to the left, the water in the water storage chamber formed between the sliding block 21 and the water inlet pipe 29 is pushed out through the water outlet pipe 210 because a check valve is installed at the connection between the water inlet pipe 29 and the seat block 1. When the sliding block 21 moves to the right, the water in the water storage chamber formed between the sliding block 21 and the water inlet pipe 29 is pumped into the water storage chamber formed between the sliding block 21 and the water inlet pipe 29 through the water outlet pipe 29 to replenish the water, so that the next round of pressurized water can be discharged and transported to the extraction zone.

[0044] Specifically, the pressing assembly 4 includes a lifting cylinder 41 disposed inside the upper cylinder and a cylinder 44 fixedly installed at the center of the top of the upper cylinder. A shaft 42 is rotatably mounted on the axis of the lifting cylinder 41 via a bearing, and the telescopic end of the cylinder 44 is fixedly connected to the top of the shaft 42. A gear column 43 is fixedly sleeved on the outer circumferential surface of the shaft 42 at the top of the lifting cylinder 41. A horizontal plate 45 is fixedly installed on the inner circumferential surface of the upper cylinder, and a second motor 46 is fixedly installed at the bottom of the horizontal plate 45. The output shaft end of the second 46 is fixedly provided with a gear plate 47 that meshes with the gear column 43. The top and bottom of the lifting cylinder 41 are provided with a set of two fan-shaped slots 48, and the two sets of fan-shaped slots 48 are arranged in a cross shape. The outer circumference of the shaft 42 is fixedly provided with two fan-shaped plates 49 that are symmetrical about the shaft 42 at the top and bottom positions of the lifting cylinder 41. The fan-shaped plates 49 at the bottom of the lifting cylinder 41 and the bottom end face of the lifting cylinder 41 are provided with non-through insertion holes 410.

[0045] It should be noted that the bottom end of the feed pipe 7 is directly opposite one of the fan-shaped slots 48 on the top of the lifting cylinder 41, and the vertical projection of the fan-shaped plate 49 is larger than the vertical projection of the fan-shaped slot 48 at its location. During the tamping of the coffee powder to be extracted, the gear plate 47 is first driven to rotate by the motor 46, and the rotating gear plate 47 drives the gear column 43 to rotate. Since both the fan-shaped plate 49 and the gear column 43 are fixed to the shaft 42, the rotation of the gear column 43 will cause the fan-shaped plate 49 to rotate synchronously. Driving the gear column 43 to rotate can release the blockage of the fan-shaped slot 48 at the top of the lifting cylinder 41 by the fan-shaped plate 49, while the fan-shaped plate 49 at the bottom of the lifting cylinder 41... The fan-shaped slot 48 at the specified location is sealed, and then the coffee powder to be extracted is added into the lifting cylinder 41 through the feed pipe 7. Then, the gear column 43 is driven to rotate again to block the fan-shaped slot 48 at the top of the lifting cylinder 41 and release the blockage of the fan-shaped slot 48 at the bottom of the lifting cylinder 41, allowing the coffee powder to fall into the extraction area. After the feeding is completed, the gear column 43 is driven to rotate again to release the blockage of the fan-shaped slot 48 at the top of the lifting cylinder 41 and seal the fan-shaped slot 48 at the bottom of the lifting cylinder 41. The cylinder 44 is then activated to push the lifting cylinder 41, which has a sealed bottom, downward and compact the coffee powder to be extracted. During this process, the precise positioning of each component can be determined by monitoring sensors in the existing technology.

[0046] Specifically, the extraction assembly 5 includes a water tray 51 fixedly disposed at the bottom of the inner cavity of the lower cylinder and a liquid collection channel 56 fixedly sleeved on the bottom of the outer peripheral surface of the lower cylinder. The top end of the water outlet pipe 210 passes through the top end of the seat block 1 and the bottom end of the water tray 51 in sequence. The top of the water tray 51 is fixedly provided with multiple water supply pipes 52 that communicate with the inner cavity of the water tray 51. Each water supply pipe 52 has multiple downwardly inclined water outlet holes 53 on its outer peripheral surface, which can effectively prevent coffee powder from entering the water supply pipe 52 during the feeding process. One-way valves 54 are installed at the connection between the water outlet pipe 210 and the water supply pipe 52 and the water tray 51. Multiple drain holes 55 are opened at the bottom of the outer peripheral surface of the lower cylinder. The bottom of the outer peripheral surface of the liquid collection channel 56 is connected to the liquid outlet pipe 57.

[0047] It should be noted that the water supply pipe 52 and the insertion hole 410 on the bottom end face of the lifting cylinder 41 with the bottom end sealed are set one-to-one; the size of the drain hole 55 is such that the coffee powder does not leak out during the feeding process; in order to facilitate the discharge of the extract liquid, the bottom end face of the liquid collection channel 56 can be set to be inclined downward towards the liquid outlet pipe 57. In the process of extracting the compacted coffee powder, water is pressed into the water pan 51 by the intermittent water supply mechanism 2, and then the water in the water pan 51 is pressed into the water supply pipe 52 by the subsequent water pressure, and then pressed into the compacted coffee powder through the water outlet hole 53. Thus, the compacted coffee powder is dynamically pressure-extracted by the continuously intermittently pressed water, and the extracted liquid enters the liquid collection channel 56 through the drain hole 55 and is finally discharged through the liquid outlet pipe 57 for collection.

[0048] In this embodiment, two guide blocks 10 are fixedly provided at the top of the outer peripheral surface of the lifting cylinder 41, which are symmetrical about the shaft 42. A guide groove 9 is provided on the inner peripheral surface of the upper cylinder at the position corresponding to the guide block 10, and the bottom end of the guide groove 9 is downward and through. The guide block 10 is slidably connected to the inside of the guide groove 9 at the corresponding position. The cooperation between the guide groove 9 and the guide block 10 can be used to ensure that the lifting cylinder 41 can only move up and down, thereby ensuring that the water supply pipe 52 and the insertion hole 410 on the bottom end surface of the lifting cylinder 41, which is sealed at the bottom, are always in a one-to-one correspondence. Example 2

[0049] Refer to the instruction manual appendix Figure 1 and Figure 8-9 According to an embodiment of the present invention, a dynamic coffee extraction device is provided inside the lower cylinder, wherein a desiccant mechanism 6 is further provided. The desiccant mechanism 6 includes a pad 61 that is movably attached to the upper surface of the water pan 51. A through hole 62 is provided on the top of the pad 61 corresponding to the position of each water supply pipe 52, and each water supply pipe 52 is movably inserted into the through hole 62 at the corresponding position. An L-shaped hanging plate 63 is fixedly provided on the outer circumferential surface of the pad 61. A limiting groove 64 is provided on the inner circumferential surface of the lower cylinder corresponding to the position of the L-shaped hanging plate 63. A locking slot 65 is provided at the top of the limiting groove 64. The inner side of the L-shaped hanging plate 63 away from the pad 61 is set as an inclined surface, wherein the inclined surface is inclined upward, which can form a groove to facilitate slippage during the lifting of the pad 61.

[0050] It should be noted that when the bottom surface of the pad 61 is in contact with the top surface of the water tray 51, the L-shaped hanging plate 63 is precisely embedded in the L-shaped groove formed by the bayonet 65 and the limiting groove 64, and the end of the L-shaped hanging plate 63 away from the pad 61 extends to the outside of the bayonet 65. In the process of removing the residue after extraction, the lifting cylinder 41 is first completely retracted into the upper cylinder under the action of the cylinder 44. Then, the upper cylinder is deflected around the central axis of the round rod 13, exposing the complete inner cavity of the lower cylinder. Then, the pad 61 is lifted upward by lifting the L-shaped hanging plate 63, which drives the residue to move upward for easy removal.

[0051] In the above technical solutions, the circuits, electronic components and control modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content to be protected by this invention does not involve any improvement to the software and methods.

[0052] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

[0053] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0054] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0055] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dynamic coffee extraction device, characterized in that: The extraction device consists of a water supply section and an extraction section. The water supply section includes a hollow seat block (1), and an intermittent water supply mechanism (2) is provided inside the seat block (1). The extraction section includes an extraction cylinder (3) composed of an upper cylinder and a lower cylinder. A connecting component is provided between the opposite ends of the outer circumferences of the upper cylinder and the lower cylinder, and the lower cylinder is fixedly installed on the top of the seat block (1). A pressing component (4) and an extraction component (5) are provided inside the extraction cylinder (3) from top to bottom. A feed pipe (7) is connected to the top of the upper cylinder. A handle (8) is fixedly provided at the top of the seat block (1) away from the lower cylinder. A slag removal mechanism (6) is also provided inside the lower cylinder. The intermittent water supply mechanism (2) includes a component slidably connected to the seat block. The sliding block (21) inside the block (1) has a fan-shaped through slot (22) through the center of one side of the sliding block (21). A motor (23) is fixedly installed on one side of the inner cavity of the seat block (1) at the position corresponding to the fan-shaped through slot (22). A straight plate (24) is fixedly connected to the output shaft end of the motor (23). A rotating rod (25) is fixedly installed at the other end of the straight plate (24). A collar (26) is installed on the outer circumference of the rotating rod (25) away from the straight plate (24) through a bearing drive. Two straight bars (27) are fixedly arranged collinearly on the outer circumference of the collar (26). A cylindrical block (28) that fits against the inner wall of the fan-shaped through slot (22) is fixedly installed at the opposite end of the two straight bars (27). One side of the block (1) is connected to a water inlet pipe (29) and the top of the block is connected to an outlet pipe (210) corresponding to the position of the extraction cylinder (3). The other end of the water inlet pipe (29) is connected to an external water source, and a check valve is installed at the connection between the water inlet pipe (29) and the block (1). The pressing assembly (4) includes a lifting cylinder (41) located inside the upper cylinder and a cylinder (44) fixedly installed at the center position of the top of the upper cylinder. A shaft (42) is rotatably installed at the axis of the lifting cylinder (41) through a bearing, and the telescopic end of the cylinder (44) is fixedly connected to the top of the shaft (42). A gear column (43) is fixedly sleeved on the outer circumference of the shaft (42) at the position of the top of the lifting cylinder (41). A horizontal plate (45) is fixedly provided on the inner circumferential surface of the upper cylinder. A motor (46) is fixedly installed at the bottom of the horizontal plate (45). A gear plate (47) that meshes with a gear column (43) is fixedly provided at the end of the output shaft of the motor (46). A set of fan-shaped slots (48) are provided at the top and bottom of the lifting cylinder (41), with two slots in each set, and the two sets of fan-shaped slots (48) are arranged in a cross shape. Two fan-shaped plates (49) that are symmetrical about the shaft (42) are fixedly provided on the outer circumferential surface of the shaft (42) at the top and bottom of the lifting cylinder (41). Non-through insertion holes (410) are provided on the fan-shaped plate (49) at the bottom of the lifting cylinder (41) and the bottom end face of the lifting cylinder (41). The extraction assembly (5) includes a water pan (51) fixedly disposed at the bottom of the inner cavity of the lower cylinder and a liquid collection channel (56) fixedly sleeved on the bottom of the outer peripheral surface of the lower cylinder. The top end of the water outlet pipe (210) passes through the top end of the seat block (1) and the bottom end of the water pan (51) in sequence. The top of the water pan (51) is fixedly provided with multiple water supply pipes (52) connected to the inner cavity of the water pan (51). Each water supply pipe (52) has multiple downwardly inclined water outlet holes (53) on its outer peripheral surface. One-way valves (54) are installed at the connection between the water outlet pipe (210) and the water supply pipe (52) and the water pan (51). Multiple drain holes (55) are opened at the bottom of the outer peripheral surface of the lower cylinder. The bottom of the outer peripheral surface of the liquid collection channel (56) is connected to the liquid outlet pipe (57).

2. The dynamic coffee extraction device according to claim 1, characterized in that: The slag removal mechanism (6) includes a pad (61) that is movably attached to the upper surface of the water pan (51). The top of the pad (61) is provided with a through hole (62) corresponding to the position of each water supply pipe (52), and each water supply pipe (52) is movably provided inside the through hole (62) at the corresponding position. An L-shaped hanging plate (63) is fixedly provided on the outer circumferential surface of the pad (61). A limiting groove (64) is provided on the inner circumferential surface of the lower cylinder corresponding to the position of the L-shaped hanging plate (63). A bayonet (65) is provided at the top of the limiting groove (64).

3. The dynamic coffee extraction device according to claim 1, characterized in that: The connecting assembly includes an ear block (11) fixedly disposed at the edge of the opposite end of the outer periphery of the upper cylinder and the lower cylinder. A round rod (13) is fixedly disposed at the center of the top of the ear block (11) on the lower cylinder. A column groove (12) is vertically opened through the center of the top of the ear block (11) on the upper cylinder. The round rod (13) is movably sleeved inside the column groove (12). A limiting plate (14) is fixedly disposed at the top of the round rod (13) with its lower end face conforming to the top face of the ear block (11) on the upper cylinder.

4. The dynamic coffee extraction device according to claim 1, characterized in that: The top of the outer periphery of the lifting cylinder (41) is fixed with two guide blocks (10) arranged symmetrically about the shaft (42). A guide groove (9) is opened on the inner periphery of the upper cylinder at the position corresponding to the guide block (10), and the bottom end of the guide groove (9) is downward and through. The guide block (10) is slidably connected to the inside of the guide groove (9) at the corresponding position.

5. The dynamic coffee extraction device according to claim 2, characterized in that: The inner end of the L-shaped hanging plate (63) away from the pad plate (61) is set as an inclined surface.

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