Grinding and extracting structure and coffee cup

Abstract

The utility model relates to a grinding extraction structure and coffee cup, including grinding bin, cutter, first clutch piece, second clutch piece and be used for connecting with the base of rotation drive mechanism, the cutter is provided in the grinding bin, the middle part of the bottom wall of grinding bin is provided with the mounting hole, the mounting hole is provided with the first clutch piece, the second clutch piece is provided with the second clutch piece. One end of the base extends into the mounting hole and is connected with the cutter, the other end of the base is connected with the first clutch piece, the second clutch piece is connected with the grinding bin, and the first clutch piece and the second clutch piece can be connected or separated. The first clutch piece is flexibly connected with the second clutch piece, so that the grinding bin has the functions of grinding and extracting; and the grinding bin can rotate, so that the coffee is extracted by virtue of centrifugal force, the extraction rate is higher, and the taste of the coffee is better.

Description

Technical Field

[0001] This utility model relates to the field of coffee equipment technology, and in particular to a grinding and extraction structure and a coffee cup. Background Technology

[0002] Coffee is a popular beverage, and coffee lovers prefer to make their own by freshly grinding coffee beans for a richer aroma. Freshly ground coffee is typically made using a grinder before extraction, or by using a coffee machine with a grinding function, which is inconvenient to carry. While coffee cups are convenient to carry, traditional coffee cups generally lack a grinding function. Coffee cups with a grinding function use a combination of a grinding chamber and a brewing chamber. The grinding chamber contains a grinding blade connected to a motor, which rotates the blade to grind the coffee beans. The ground beans then pass through a filter into the brewing chamber below, where water is added to mix with the coffee grounds and filtered to obtain the coffee liquid. However, brewing coffee grounds results in a lower extraction rate. Utility Model Content

[0003] Based on this, the present invention provides a grinding and extraction structure and a coffee cup that not only has a grinding function but also a high coffee extraction rate.

[0004] A grinding and extraction structure includes a grinding chamber, a cutting tool, a first clutch, a second clutch, and a base for connection with a rotary drive mechanism. The cutting tool is disposed in the grinding chamber, and a mounting hole is formed in the middle of the bottom wall of the grinding chamber. One end of the base extends into the mounting hole and is connected to the cutting tool, and the other end of the base is connected to the first clutch. The second clutch is connected to the grinding chamber, and the first clutch and the second clutch can be connected or separated.

[0005] In one embodiment, one end of the first clutch has a rotating hole, and the other end is toothed. The first clutch is rotatably mounted on the base through the rotating hole. The second clutch has a plurality of internal teeth arranged around the axis of the grinding chamber, and the internal teeth are oriented in the same direction. When the base rotates in a first direction, the first clutch and the second clutch separate. When the base rotates in a second direction, the first clutch and the second clutch engage.

[0006] In one embodiment, the bottom wall of the grinding chamber protrudes inward to form a mounting platform, the mounting hole is opened in the mounting platform, the base includes a top cover, a bottom plate and a boss, the top cover is rotatably mounted on the mounting platform and connected to the cutting tool, the boss is connected to the bottom plate, the boss extends into the mounting hole and is connected to the top cover, and the first clutch is connected to the bottom plate.

[0007] In one embodiment, the grinding and extraction structure further includes a locking member. The top of the boss has a slot, and the bottom of the top cover has a block. The block and the boss have corresponding connecting holes. The block and the slot are nested together, and the locking member passes through the connecting hole to connect the top cover and the boss.

[0008] In one embodiment, a baffle is provided between the upper cover and the boss, the outer diameter of the baffle is larger than that of the boss, a first bearing is sleeved on the boss, and the boss, the baffle and the bottom plate are integrally formed.

[0009] In one embodiment, the grinding and extraction structure further includes a spring that abuts against the first clutch and the baffle.

[0010] In one embodiment, the grinding and extraction structure further includes a first bearing, and the bottom end of the mounting platform forms a receiving space to accommodate the first bearing, the first clutch and the second clutch, wherein the first bearing is disposed between the bottom end of the mounting platform and the baffle.

[0011] In one embodiment, the top of the mounting platform is provided with a limiting ring that extends around the outer periphery of the mounting hole, the outer periphery of the upper cover is provided with a downwardly protruding flange, the upper cover is placed on the limiting ring and the flange is located on the outer periphery of the limiting ring, the upper cover is provided with a threaded hole, and the cutter is locked to the upper cover by a screw.

[0012] A coffee cup includes a rotary drive mechanism, a cup body, a cup lid, a water pump, and the aforementioned grinding and extraction structure. The rotary drive mechanism is connected to a base for transmission. The grinding and extraction structure is located inside the cup body. The cup lid covers the openings of the cup body and the grinding chamber. An overflow groove is provided between the opening of the grinding chamber and the cup lid. The grinding chamber is connected to the cup body through a pipe, and the water pump is connected to the pipe.

[0013] In one embodiment, the base is provided with a limiting hole, the rotary drive mechanism includes a drive motor, an elastic element and a transmission element, the output shaft of the drive motor is connected to the transmission element, the transmission element is disposed in the limiting hole, and the elastic element abuts against the top end of the transmission element and the base.

[0014] This utility model discloses a grinding and extraction structure and a coffee cup. When the first clutch is separated from the second clutch, the blade connected to the base rotates at high speed under the action of the rotary drive mechanism to grind the coffee beans in the grinding chamber into coffee powder. When the first clutch is connected to the second clutch, the grinding chamber connected to the second clutch rotates synchronously with the first clutch, the base, and the blade. The freshly ground coffee powder in the grinding chamber can be fully mixed with water under the action of centrifugal force, thereby extracting coffee liquid. Through the flexible connection between the first clutch and the second clutch, the grinding chamber has both grinding and extraction functions, making it convenient to use and portable. Moreover, compared with the traditional coffee cup brewing method, the grinding and extraction structure and coffee cup of this application extract coffee by driving the grinding chamber to rotate and using centrifugal force, resulting in a higher extraction rate and a better coffee taste. Attached Figure Description

[0015] The above and other objects, features, and advantages of exemplary embodiments of the present disclosure will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the present disclosure are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0016] Figure 1 This is an assembly schematic diagram of a grinding and extraction structure according to one embodiment;

[0017] Figure 2 This is a schematic diagram of the grinding and extraction structure after the base plate has been removed in one embodiment;

[0018] Figure 3 yes Figure 1 A schematic diagram of the decomposition process;

[0019] Figure 4 This is a schematic diagram of an embodiment of a coffee cup;

[0020] Figure 5 This is a cross-sectional schematic diagram of a coffee cup according to one embodiment;

[0021] Figure 6 This is a schematic diagram showing the disassembled coffee cup of one embodiment.

[0022] The attached figures are labeled as follows:

[0023] 10. Cup body; 101. Liquid storage chamber; 120. Cup lid; 130. Cup handle; 140. Control component; 142. Control switch; 150. Battery; 20. Grinding chamber; 201. Mounting platform; 202. Overflow groove; 203. Mounting hole; 204. Limiting ring; 21. Cutting tool; 310. Base; 3102. Limiting hole; 311. Top cover; 3112. Locking block; 3114. Flange; 312. Base plate; 3122. Protruding post; 313. Boss; 3132. Slot; 3134. Connecting hole; 314. Stop; 320. First clutch; 330. Second clutch; 340. First bearing; 350. Spring; 360. Elastic element; 370. Transmission element; 40. Drive motor; 50. Extraction chamber; 60. Pipeline; 70. Refrigeration mechanism. Detailed Implementation

[0024] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0025] The specific embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0026] Reference Figure 4-6 This application provides a coffee cup in one embodiment, including a rotary drive mechanism, a cup body 10, a cup lid 120, a water pump, and a grinding and extraction structure. The rotary drive mechanism is connected to a base 310. The grinding and extraction structure is located inside the cup body 10. The cup lid 120 covers the opening of the cup body 10 and the grinding chamber 20, and an overflow groove 202 is provided between the opening of the grinding chamber 20 and the cup lid 120. The grinding chamber 20 is connected to the cup body 10 via a pipe 60, and the water pump is connected to the pipe 60. The cup body 10 has a liquid storage chamber 101, and the water pump can draw water from the liquid storage chamber 101 into the grinding chamber 20 through the pipe 60. The coffee cup of this embodiment, by setting the grinding and extraction structure, can not only grind coffee powder, but also extract coffee through centrifugal force, resulting in a high extraction rate.

[0027] Specifically, in combination Figure 1-3In one embodiment, the grinding and extraction structure includes a grinding chamber 20, a cutting tool 21, a first clutch 320, a second clutch 330, and a base 310 for connection with a rotary drive mechanism. The cutting tool 21 is disposed within the grinding chamber 20, and a mounting hole 203 is provided in the center of the bottom wall of the grinding chamber 20. One end of the base 310 extends into the mounting hole 203 and is connected to the cutting tool 21, while the other end of the base 310 is connected to the first clutch 320. The second clutch 330 is connected to the grinding chamber 20, and the first clutch 320 and the second clutch 330 can be connected or separated.

[0028] When using, first remove the grinding chamber 20 and the cup lid 120 from the cup body 10, and refer to... Figure 6 Pour water into the liquid storage chamber 101 of the cup body 10, open the cup lid 120, and put the coffee beans into the grinding chamber 20; then close the cup lid 120 and install the grinding chamber 20 into the cup body 10, as per [reference]. Figure 5 Then, the rotary drive mechanism is started to rotate in the first direction. At this time, the first clutch 320 and the second clutch 330 are separated. The cutter 21 connected to the base 310 rotates at high speed under the drive of the rotary drive mechanism to grind the coffee beans in the grinding chamber 20 into coffee powder. The rotary drive mechanism rotates in the opposite direction in the second direction. At this time, the first clutch 320 and the second clutch 330 are connected. The grinding chamber 20 connected to the second clutch 330 rotates synchronously with the first clutch 320, the base 310 and the cutter 21. At the same time, water is pumped into the grinding chamber 20 by a water pump. The freshly ground coffee powder in the grinding chamber 20 is fully mixed with water under the action of centrifugal force, and then coffee liquid is extracted. The coffee liquid flows out of the grinding chamber 20 through the overflow trough 202 and then flows into the liquid storage chamber 101. The liquid in the liquid storage chamber 101 can be pumped into the grinding chamber 20 by the water pump to extract coffee, and finally obtain fully extracted coffee liquid. The grinding chamber 20, flexibly connected to the first clutch 320 and the second clutch 330, combines grinding and extraction functions, making it convenient to use and portable. Compared to traditional coffee cup brewing methods, the grinding extraction structure and coffee cup in this embodiment, by driving the grinding chamber 20 to rotate, extract coffee using centrifugal force, resulting in a higher extraction rate and better coffee flavor. During centrifugal extraction, the coffee liquid mixes with air, and a layer of oily foam, similar to a fluffy cake, is generated on the surface of the coffee liquid, further enhancing its flavor.

[0029] In this embodiment, when the coffee cup is grinding coffee powder, the first clutch 320 and the second clutch 330 are separated, that is, the base 310, the first clutch 320 and the blade 21 rotate in the first direction with the rotary drive mechanism, while the second clutch 330 and the grinding chamber 20 remain stationary. During extraction, the first clutch 320 and the second clutch 330 are engaged, that is, the base 310, the blade 21, the first clutch 320, the second clutch 330 and the grinding chamber 20 are connected as a whole and rotate in the second direction with the rotary drive mechanism.

[0030] Furthermore, referring to Figure 5 , 6 The cup body 10 has a handle 130 on one side. A pipe 60 extends from bottom to top along the handle 130 to the lid 120, with one end connected to the liquid storage chamber 101 and the other end passing through the lid 120 and extending into the grinding chamber 20. Water from the liquid storage chamber 101 is pumped to the grinding chamber 20 by a water pump and the pipe 60 for coffee extraction. A peristaltic pump can be used, which is compact and more hygienic. Optionally, the water pump is located inside the handle 130, allowing for a reasonable arrangement of the pump and pipe 60 within the handle 130. In other embodiments, the water pump is located inside the lid 120, ensuring that the pump is disconnected when the lid 120 is removed from the cup body 10, preventing water from spraying out of the cup body 10 and causing splashing.

[0031] Optionally, pipe 60 includes a first pipe, a second pipe, and a third pipe. The first end of the first pipe extends into the liquid storage chamber 101, and the second end is a plug-in end. The first end of the second pipe can be quickly plugged into the second end of the first pipe, and the second end of the second pipe is connected to the water pump inlet. The first end of the third pipe is connected to the water pump outlet, and the second end passes through the cup lid 120 and is inserted into the grinding chamber 20. The second end of the third pipe has a spray hole. When the water pump starts, the liquid in the liquid storage chamber 101 flows from the first pipe into the second pipe, then through the third pipe, and finally is sprayed into the grinding chamber 20 through the spray hole, mixing with the coffee powder in the grinding chamber 20. The diameter of the spray hole is less than 1 mm, such as 0.4 mm, 0.5 mm, or 0.6 mm, so that the spray pressure is greater, allowing the sprayed liquid to mix better with the coffee powder, providing extraction rate and speed. In this embodiment, the third pipe is positioned above the middle of the cutter 21 to avoid the path of the cutter 21's rotation and prevent interference between them. In other embodiments, the third tube may also be positioned near the lower part of the inner wall of the grinding chamber 20, so that the sprayed water can be better mixed with the coffee powder centrifugally thrown towards the inner wall.

[0032] Furthermore, refer to Figure 3An overflow groove 202 is located at the edge of the opening of the grinding chamber 20. The grinding chamber 20 is sealed by the lid 120 to prevent coffee powder from flying out during grinding. Simultaneously, the overflow groove 202 at the edge of the opening of the grinding chamber 20 allows the extracted coffee liquid to flow upwards along the overflow groove 202 and out of the grinding chamber 20 during centrifugal extraction. The overflow groove 202 is elongated and has a small aperture, making it difficult for coffee powder to overflow. Optionally, four overflow grooves 202 are evenly spaced at the edge of the opening of the grinding chamber 20 to facilitate the smooth overflow of the extracted coffee liquid from all directions within the grinding chamber 20.

[0033] Furthermore, refer to Figure 3 , Figure 5 In one embodiment, the bottom wall of the grinding chamber 20 protrudes inward to form a mounting platform 201, and the mounting hole 203 is formed in the mounting platform 201. The base 310 includes an upper cover 311, a bottom plate 312, and a boss 313. The upper cover 311 is rotatably mounted on the mounting platform 201 and connected to the cutter 21. The boss 313 is connected to the bottom plate 312, extends into the mounting hole 203, and is connected to the upper cover 311. The first clutch 320 is connected to the bottom plate 312. By providing the inwardly protruding mounting platform 201, the upper cover 311 is rotatably mounted on the mounting platform 201, so that the upper cover 311 can not only rotate around the protruding mounting platform 201, but also better seal the mounting hole 203 of the grinding chamber 20. In this embodiment, the upper cover 311 is located inside the grinding chamber 20 and connected to the cutter 21, and seals the bottom wall of the grinding chamber 20. The boss 313 extends into the mounting hole 203 and is connected to the upper cover 311. The cutter 21, the upper cover 311, the boss 313, the bottom plate 312 and the first clutch 320 are connected together to form a whole, and can rotate relative to the grinding chamber 20 around the axis of the mounting hole 203 to realize the grinding function of the grinding chamber 20. At this time, the first clutch 320 and the second clutch 330 are in a separated state.

[0034] Furthermore, referring to Figure 3 , Figure 5In one embodiment, the top of the mounting platform 201 is provided with a limiting ring 204 that protrudes around the outer periphery of the mounting hole 203. The outer periphery of the upper cover 311 is provided with a downwardly protruding flange 3114. The upper cover 311 covers the limiting ring 204, and the flange 3114 is located on the outer periphery of the limiting ring 204. The flange 3114 is sleeved on the outer periphery of the limiting ring 204, forming a double barrier outside the mounting hole 203 to better seal the mounting hole 203 and prevent coffee leakage. The upper cover 311 has a threaded hole, and the cutter 21 is locked to the upper cover 311 by screws. Optionally, the cutter 21 includes two cross-stacked blades with a through hole in the middle. The screw passes through the through hole and the threaded hole to lock the blades to the upper cover 311. One blade bends downwards and the other bends upwards. This increases the probability of the blades colliding with the coffee beans, improving grinding efficiency, and also prevents the coffee beans from getting stuck between the blades and the bottom wall of the grinding chamber 20.

[0035] In one embodiment, reference is made to Figure 2 , 3 The first clutch 320 has a rotating hole at one end and sharp teeth at the other end. A protrusion 3122 is provided on the base plate 312, and the first clutch 320 is rotatably mounted on the protrusion 3122 through the rotating hole. The second clutch 330 has multiple internal teeth arranged around the axis of the grinding chamber 20, with the internal teeth facing the same direction. When the base 310 rotates in a first direction, the first clutch 320 and the second clutch 330 disengage; when the base 310 rotates in a second direction, the first clutch 320 and the second clutch 330 engage. A rotational clearance is provided between the protrusion 3122 and the boss 313. When the rotary drive mechanism drives the base 310 and the first clutch 320 to rotate in the first direction, the tip of the first clutch 320 can rotate around the protrusion 3122 within the rotational clearance range. The tip of the first clutch 320 is not stuck on the second clutch 330, and the two remain separated, preventing the grinding chamber 20 from rotating together. The gear ring is fixed on the wall of the mounting hole 203 and located at the position corresponding to the first clutch 320. When the tip of the first clutch 320 rotates in the second direction, it can engage and lock with the internal teeth. Optionally, multiple first clutches 320 can be provided. In this embodiment, three first clutches 320 are provided at intervals. By having multiple first clutches 320 engage with different areas of the second clutch 330, the force is evenly distributed, ensuring that the grinding chamber 20 rotates more smoothly.

[0036] Reference Figure 3In one embodiment, the grinding and extraction structure further includes a locking component (not shown). The top of the boss 313 has a slot 3132, and the bottom of the upper cover 311 has a locking block 3112. The locking block 3112 and the boss 313 have corresponding connecting holes 3134. The locking block 3112 and the slot 3132 are nested together. The locking component passes through the connecting hole 3134 to connect the upper cover 311 and the boss 313. Through the nested engagement of the locking block 3112 and the slot 3132, the upper cover 311 and the boss 313 can be quickly positioned and installed. The locking component, passing through the connecting hole 3134, connects the upper cover 311 and the boss 313 into a single unit. The locking component can be a screw, bolt, or other rod-like component.

[0037] Reference Figure 3 In one embodiment, a baffle 314 is provided between the upper cover 311 and the boss 313. The outer diameter of the baffle 314 is larger than that of the boss 313, and a first bearing 340 is fitted onto the boss 313. The baffle 314 supports the first bearing 340, leaving space between the first bearing 340 and the base plate 312 for installing a first clutch 320. Optionally, the boss 313, the baffle 314, and the base plate 312 are integrally formed.

[0038] Reference Figure 2 , Figure 3 In one embodiment, the grinding and extraction structure further includes a spring 350, which abuts against the first clutch 320 and the baffle 314. Through the action of the spring 350, after the base 310 rotates in the first direction, the first clutch 320 can return to a specific position, ensuring that it can engage with the second clutch 330 in the second direction.

[0039] Reference Figure 2 , Figure 5 In one embodiment, the grinding and extraction structure further includes a first bearing 340. The bottom end of the mounting platform 201 forms a receiving space to accommodate the first bearing 340, the first clutch 320, and the second clutch 330. The first bearing 340 is disposed between the bottom end of the mounting platform 201 and the baffle 314. An installation space is formed in the area below the mounting platform 201. The base plate 312 is located below the bottom wall of the grinding chamber 20. The upper cover 311 and the base plate 312 encapsulate the boss 313, the first bearing 340, the first clutch 320, and the second clutch 330 within the installation space. The base 310 is confined to the grinding chamber 20, its axial freedom is restricted, and by providing the first bearing 340, the base 310 can smoothly rotate around the axis of the mounting platform 201 in a first direction.

[0040] Reference Figure 3 , Figure 5 In one embodiment, the base is provided with a limiting hole 3102. The rotary drive mechanism includes a drive motor 40, an elastic element 360, and a transmission element 370. The output shaft of the drive motor 40 is connected to the transmission element 370, which is disposed within the limiting hole 3102. The elastic element 360 abuts against the top of the transmission element 370 and the base 310. The elastic space of the elastic element 360 prevents misalignment between the rotary drive mechanism and the base 310 due to assembly errors, ensuring a better connection between the rotary drive mechanism and the base 310. Specifically, the transmission element 370 is a polygonal component, and the limiting hole 3102 is a polygonal hole. The transmission element 370 engages with the limiting hole 3102 to drive the base 310 to rotate.

[0041] Reference Figure 5 Optionally, the coffee cup also includes a cooling mechanism 70, which is disposed inside the cup body 10 and located below the cup body 10. The cooling mechanism 70 cools the coffee, exchanging heat with the liquid inside the cup body 10 to lower the liquid temperature in the liquid storage chamber 101, thereby extracting a low-temperature coffee liquid, better preserving the rich flavor of the coffee, and satisfying the needs of those who prefer iced coffee.

[0042] Furthermore, referring to Figure 5 In one embodiment, the coffee cup further includes a control component 140 and a battery 150. The control component 140 is disposed within the handle 130. The battery 150 is disposed within the cup body 10 and located below the cooling mechanism 70. (See reference...) Figure 4 , 6 The cup handle 130 is equipped with a control switch 142 electrically connected to the control component 140. The control component 140 is electrically connected to the battery 150, the rotary drive mechanism, the cooling mechanism 70, and the water pump. By strategically arranging the control component 140 within the space of the cup handle 130, the coffee cup can be easily and quickly opened or closed by operating the control switch 142. A contact is located at the top of the cup handle 130, and a corresponding contact is located on the cup lid 120. When the cup lid 120 and the grinding chamber 20 are removed, the contact is disconnected, and the water pump is automatically powered off. When the cup lid 120 and the grinding chamber 20 are installed on the cup body 10, the contact is closed, and the water pump can be powered on and started.

[0043] Furthermore, referring to Figure 5 , 6In one embodiment, the coffee cup further includes an extraction chamber 50, which is fitted around the outer periphery of the grinding chamber 20. A rotary drive mechanism is installed inside the extraction chamber 50, and the extraction chamber 50 is detachably installed inside the cup body 10. A lid 120 is closable and covers the openings above the grinding chamber 20 and the extraction chamber 50. By fitting the extraction chamber 50 around the outer periphery of the grinding chamber 20, the rotary drive mechanism can be connected to the base 310 on the grinding chamber 20. (See reference...) Figure 6 When it is necessary to fill with water or pour out coffee liquid, the extraction chamber 50 and its internal rotary drive mechanism, grinding chamber 20, base 310 and cup lid 120 are removed from the cup body 10 to expose the liquid storage chamber 101. Then, water is poured into the liquid storage chamber 101 or the coffee liquid in the liquid storage chamber 101 is poured out.

[0044] Furthermore, the extraction chamber 50 includes a first chamber and a second chamber connected vertically. The first chamber is fitted around the outer periphery of the grinding chamber 20, and an extraction gap is left between the inner wall of the first chamber and the outer wall of the grinding chamber 20. A through hole is formed on the bottom wall of the first chamber, and the through hole communicates with the liquid storage chamber 101. After the coffee liquid extracted by the grinding chamber 20 overflows from its overflow groove 202, it flows into the first chamber along the extraction gap, and then flows into the liquid storage chamber 101 of the cup body 10 through the through hole. The second chamber is located below the grinding chamber 20, that is, at the position corresponding to the base 310. The rotary drive mechanism is encapsulated in the second chamber, and the drive shaft of the rotary drive mechanism extends out of the second chamber and is connected to the transmission component 370, thereby driving the cutter 21 and the grinding chamber 20 to rotate.

[0045] In the foregoing description of this specification, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "joined" should be interpreted broadly. For example, the term "joined" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this specification, those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] Based on the above description in this specification, those skilled in the art will also understand that terms used, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not imply that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0047] Furthermore, the terms "first" or "second," etc., used in this specification to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating, explicitly or implicitly, relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this specification, "a plurality of" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0048] While this specification has shown and described various embodiments of the present invention, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and essence of the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover the modular compositions, equivalents, or alternatives within the scope of these claims.

Claims

1. A grinding and extraction structure, characterized in that, The device includes a grinding chamber, a cutting tool, a first clutch, a second clutch, and a base for connecting to a rotary drive mechanism. The cutting tool is disposed inside the grinding chamber. A mounting hole is provided in the middle of the bottom wall of the grinding chamber. One end of the base extends into the mounting hole and is connected to the cutting tool. The other end of the base is connected to the first clutch. The second clutch is connected to the grinding chamber. The first clutch and the second clutch can be connected or separated.

2. The grinding and extraction structure according to claim 1, characterized in that, The first clutch has a rotating hole at one end and a pointed tooth at the other end. The first clutch is rotatably mounted on the base through the rotating hole. The second clutch has a plurality of internal teeth arranged around the axis of the grinding chamber. The internal teeth face the same direction. When the base rotates in a first direction, the first clutch and the second clutch separate. When the base rotates in a second direction, the first clutch and the second clutch engage.

3. The grinding and extraction structure according to claim 1 or 2, characterized in that, The bottom wall of the grinding chamber protrudes inward to form a mounting platform. The mounting hole is opened on the mounting platform. The base includes an upper cover, a bottom plate, and a boss. The upper cover is rotatably mounted on the mounting platform and connected to the cutting tool. The boss is connected to the bottom plate. The boss extends into the mounting hole and is connected to the upper cover. The first clutch is connected to the bottom plate.

4. The grinding and extraction structure according to claim 3, characterized in that, It also includes a locking component. The top of the boss has a slot, and the bottom of the top cover has a block. The block and the boss have corresponding connecting holes. The block and the slot are nested together. The locking component passes through the connecting hole to connect the top cover and the boss.

5. The grinding and extraction structure according to claim 3, characterized in that, A baffle is provided between the top cover and the boss. The outer diameter of the baffle is larger than that of the boss. A first bearing is fitted on the boss. The boss, the baffle and the bottom plate are integrally formed.

6. The grinding and extraction structure according to claim 5, characterized in that, It also includes a spring that abuts against the first clutch and the stop.

7. The grinding and extraction structure according to claim 5, characterized in that, It also includes a first bearing, and the bottom end of the mounting platform is surrounded to form a receiving space for accommodating the first bearing, the first clutch and the second clutch, and the first bearing is disposed between the bottom end of the mounting platform and the stop.

8. The grinding and extraction structure according to claim 3, characterized in that, The top of the mounting platform is provided with a limiting ring that extends around the outer periphery of the mounting hole. The outer periphery of the upper cover is provided with a downwardly protruding flange. The upper cover is placed on the limiting ring and the flange is located on the outer periphery of the limiting ring. The upper cover is provided with a threaded hole. The cutter is locked to the upper cover by screws.

9. A coffee cup, characterized in that, The invention includes a rotary drive mechanism, a cup body, a cup lid, a water pump, and a grinding and extraction structure as described in any one of claims 1 to 8. The rotary drive mechanism is connected to a base for transmission. The grinding and extraction structure is located inside the cup body. The cup lid covers the openings of the cup body and the grinding chamber. An overflow groove is provided between the opening of the grinding chamber and the cup lid. The grinding chamber is connected to the cup body through a pipe. The water pump is connected to the pipe.

10. The coffee cup according to claim 9, characterized in that, The base is provided with a limiting hole. The rotary drive mechanism includes a drive motor, an elastic element and a transmission element. The output shaft of the drive motor is connected to the transmission element. The transmission element is disposed in the limiting hole. The elastic element abuts against the top end of the transmission element and the base.

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