Coffee grinder with adjustable grinding strength

Abstract

To provide a coffee grinder having a simple and rational structural design and capable of adjusting the coarseness of coffee beans. [Solution] The coffee grinder with adjustable grinding strength comprises a lid 405, a bean cup 404, a hopper 402, and a main body 401. The lid is attached to the bottom of the bean cup, the hopper is attached to the top of the bean cup, the main body is attached to the top of the hopper, a protruding hopper base is attached to the bottom of the hopper, the hopper base is inserted into the bean cup, a button cover is attached to the top of the main body, a protruding cutter adjustment screw is attached to the bottom, the cutter adjustment screw is inserted into the drive plate base, and a rotating rod is attached in the cutter adjustment sleeve-type nut, one end of the rotating rod is inserted into the electric motor attached to the cutter adjustment screw, and the other end is inserted into the hopper support part.

Description

[Technical Field]

[0001] The present invention relates to the technical field of coffee grinders, and in particular to coffee grinders with adjustable grinding strength. [Background technology]

[0002] Up until now, cocoa, which stimulates the senses, coffee, which is rich and romantic, and tea, which has a refreshing and clean aroma, have been said to be the world's three most popular beverages. Coffee, as one of the world's three most popular beverages, is widely known as a drink with a long history. Coffee has become increasingly popular among consumers and has been integrated into fashion, modern life, work, leisure, and entertainment. Coffee lovers, whether at home, in the office, or away on business trips or travels, need a coffee grinder to enjoy coffee brewed with freshly ground coffee beans.

[0003] However, with conventional coffee grinders, when adjusting the coarseness of the coffee beans, the bean cup must be removed and the coarseness adjusted at the bottom of the coffee grinder, which makes it difficult to brew freshly ground coffee. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention proposes a coffee grinder with adjustable grinding strength, which solves the problems presented in the prior art background.

[0005] The technical means of this utility model includes a coffee grinder, the coffee grinder including a lid, a bean cup, a hopper and a body, the lid is provided at the bottom of the bean cup, the hopper is provided at the top of the bean cup, and the body is provided at the top of the hopper.

[0006] The lid and the bean cup are connected by an engagement structure.

[0007] The top surface of the lid is provided with a protruding circular ring portion, and one side of the circular ring portion is provided with a key groove.

[0008] A protruding key is provided on one side of the inside of the bean cup, and the key is inserted into the key groove to form a coupling structure by engagement.

[0009] The key provided on the bean cup has an up and down structure.

[0010] The bean cup and the hopper are connected by an engagement structure.

[0011] The hopper has a protruding hopper base on the bottom surface thereof and a drive plate on the top surface thereof.

[0012] A key groove is provided on one side of the hopper base, and the hopper base is inserted into the bean cup, and a coupling structure is formed between the hopper and the bean cup by coupling the key groove with the key provided on the bean cup.

[0013] Since the keyway provided in the hopper base is square-shaped, grooves can be provided at upper and lower positions in the keyway provided in the hopper base.

[0014] A drive plate base is provided within the drive plate, and a protruding elastic bead is provided on one side of a wall of the drive plate base, and a key groove is provided on the other side.

[0015] A hopper opening is provided on one side of the hopper, and a hopper door is provided inside the hopper. The hopper door has a movable structure, and the hopper opening is provided on one side of the hopper door, so that a structure for putting coffee beans can be formed.

[0016] The main body and the hopper are connected by engagement.

[0017] The body has a button cover on the top surface and a protruding cutter adjustment screw on the bottom surface.

[0018] The cutter adjustment screw is inserted into the drive plate base, one end of the cutter adjustment screw and the cutter adjustment sleeve nut have a threaded structure, and the cutter adjustment sleeve nut is fitted into the cutter adjustment screw.

[0019] A rotating rod is provided in the cutter adjustment sleeve-type nut, one end of the rotating rod is inserted into an electric motor provided in the cutter adjustment screw, and the other end is inserted into a hopper support, and a hopper support base is inserted into the hopper support.

[0020] The hopper support base is provided on the top of the hopper support plate, and a spring is provided between the hopper support and the hopper support plate.

[0021] An upper abrasive disc is provided at the bottom of the hopper support base, the upper abrasive disc is provided at the top of the abrasive disc base, and a lower abrasive disc is provided at the bottom of the abrasive disc base.

[0022] In a preferred embodiment, the lower abrasive disc has a spring at the top and an abrasive disc lock at the bottom.

[0023] The bottom surface of the hopper base is provided with a grinding disc lock, and the outer periphery of the grinding disc lock is provided with a convex ring structure concentric with the grinding disc lock, and the convex ring structure is a scattering prevention periphery.

[0024] The entire hopper base is cylindrical, and a plurality of keyways are provided on the circumferential surface thereof. The plurality of keyways are uniformly arranged in a circle on the outer circumferential surface of the hopper base, and there are 2 to 5 sets of keyways.

[0025] Each of the key grooves is in a "U" shape arranged in the vertical direction, and includes a first positioning groove in the horizontal direction, a second positioning groove in the horizontal direction, and a connecting groove arranged in the vertical direction for connecting the first positioning groove and the second positioning groove.

[0026] As a preferred embodiment, a rubber stopper is provided at the bottom of the button cover, the bottom of the rubber stopper is provided at the top of the top inner cover, a circuit board is provided at the bottom of the top inner cover, the bottom of the circuit board is provided on the circuit board base, a battery is provided at the bottom of the circuit board base, the battery is provided at the top of the battery base, an electric motor is provided at the bottom of the battery base, the electric motor is inserted into the electric motor base, a sealing ring is provided on one side of the electric motor base, a spring is provided on the bottom surface of the sealing ring, and one end of the spring is provided at the top of the screw for cutter adjustment.

[0027] As a preferred embodiment, a pressing rod is provided on one side of the top of the screw for cutter adjustment facing the battery base, and one side of the battery base is inserted into the top of the screw for cutter adjustment.

[0028] As a preferred embodiment, a scale is provided on the outer wall side of the main body.

[0029] As a preferred embodiment, a pointer is provided on the outer wall side of the hopper.

Advantages of the Invention

[0030] the hopper is mounted on the top of the bean cup; the body is mounted on the top of the hopper; one end of the body is provided with a protruding cutter adjustment screw; a rotating rod is inserted into the cutter adjustment screw; the electric motor drives the rotating rod; the rotating rod drives the lower grinding disc to rotate via a transmission unit; the lower grinding disc is inserted into the upper grinding disc; the coffee beans are ground into coffee powder as they pass between the upper and lower grinding discs; a scale is provided on the outer wall of the body; the hopper is provided on the outer wall of the body; the body can be adjusted by rotation; and the rotation of the body rotates the upper grinding disc and adjusts the gap between the upper and lower grinding discs, thereby realizing a structure for adjusting the coarseness of the coffee beans. [Brief explanation of the drawings]

[0031] In order to more clearly explain the embodiments of the present utility model or the technical means in the prior art, the drawings necessary for explaining the embodiments or the prior art will be briefly described below. However, the drawings described below are only some embodiments of the present utility model, and it is obvious to those skilled in the art that other drawings can be obtained based on these drawings without paying any creative labor. [Figure 1] 1 is a diagram showing the overall structure of the coffee grinder according to the present utility model. [Figure 2] 1 is a diagram showing the overall structure of the hopper door according to the present invention when it is open. [Figure 3] 1 is an exploded view of the overall structure of the coffee grinder according to the present invention. [Figure 4] 1 is a diagram showing the overall structure of a drive plate according to the present invention. [Figure 5] 1 is an exploded view of the overall structure of the main body according to the present invention. [Figure 6] 1 is a cross-sectional view of the overall structure of the combination of the main body and hopper according to the present utility model. [Figure 7] 1 is a diagram showing the overall structure of a hopper according to the present utility model. [Figure 8] 1 is a diagram showing the overall structure of the coffee grinder according to the present utility model. [Figure 9] 1 is a structural diagram of a hopper base of a coffee grinder according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0032] The technical means in the embodiments of the present utility model will be described below in detail and clearly with reference to the drawings of the embodiments of the present utility model. It is clear that the described embodiments are only a part of the embodiments of the present utility model, and are not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without any creative work fall within the scope of protection of the present utility model.

[0033] As shown in Figures 1 to 9,

[0034] First embodiment:

[0035] The coffee grinder includes a lid 405, a bean cup 404, a hopper 402, and a body 401. The lid 405 is located at the bottom of the bean cup 404, the hopper 402 is located at the top of the bean cup 404, and the body 401 is located at the top of the hopper 402. One end of the body 401 is provided with a protruding cutter adjustment screw 424, and a rotating rod 429 is inserted into the cutter adjustment screw 424. The electric motor 417 drives the rotating rod 429, and the rotating rod 429 drives and rotates the lower grinding disc 445 through a transmission unit. The lower grinding disc 445 is inserted into the upper grinding disc 440, and as the coffee beans pass between the upper grinding disc 440 and the lower grinding disc 445, they are crushed into coffee powder. A scale is provided on the outer wall of the main body 401, and a pointer is provided on the outer wall of the hopper 402. The main body 401 can be adjusted by rotation, and when the main body 401 rotates, the upper grinding disc 440 rotates, and the gap between the upper grinding disc 440 and the lower grinding disc 445 can be adjusted, thereby realizing a structure that can adjust the coarseness of the coffee beans.

[0036] The main body 401 is provided with a button cover 406 on the top surface thereof, and a protruding cutter adjustment screw 424 on the bottom surface thereof. The cutter adjustment screw 424 is inserted into a drive plate base 427. One end of the cutter adjustment screw 424 and a cutter adjustment sleeve nut 428 are threaded. The cutter adjustment sleeve nut 428 is fitted into the cutter adjustment screw 424. A rotating rod 429 is provided in the cutter adjustment sleeve nut 428. One end of the rotating rod 429 is inserted into an electric motor 417 provided in the cutter adjustment screw 424. The other end is inserted into a hopper support 433. A hopper support base 436 is inserted into the hopper support 433. The hopper support base 436 is connected to the hopper support plate 4 38, an upper grinding disc 440 is mounted on the bottom of hopper support base 436, the upper grinding disc 440 is mounted on the top of grinding disc base 441, and a lower grinding disc 445 is mounted on the bottom of grinding disc base 441. A drive plate base 427 is mounted within drive plate 425, and a protruding elastic bead 426 is mounted on one side of the wall of drive plate base 427, which is fitted into the elastic bead annular groove of cutter adjustment screw 424 by elastic force. In this case, the main body 401 can be adjusted in one step every 7.2° during a period of 324° clockwise or 324° counterclockwise rotation, for a total of 45 steps, thereby realizing a structure that can adjust the coarseness of the coffee beans.

[0037] The character 9 on the scale of the main body 401 is directly opposite the circular pointer provided on the hopper 402, and in this case the scale indicates the coarsest grind state. When the main body 401 rotates 324° clockwise, the character 0 on the scale of the main body 401 is directly opposite the circular pointer provided on the hopper 402, and in this case the scale indicates the finest grind state.

[0038] The lid 405 and the bean cup 404 have an interlocking structure, in which a protruding circular ring is provided on the top surface of the lid 405, one side of which is provided with a key groove, and one side of the inside of the bean cup 404 is provided with a protruding key which is inserted into the key groove, thereby forming an interlocking structure. After grinding the coffee beans, the ground coffee is placed into the bean cup 404, the bean cup 404 is removed from the device, and the lid 405 attached to the bottom of the bean cup 404 is removed and attached to the bean cup 404 and tightly fastened, preventing the coffee powder from spilling when the device is carried around.

[0039] The bean cup 404 is shaped like a cup, and the lid 405 is designed to be attached to the bean cup 404. The bean cup 404 receives ground coffee powder, so when the bean cup 404 is attached to the device, the lid 405 is attached to the bottom of the bean cup 404 to allow for storage and to prevent it from being lost.

[0040] The key provided on the bean cup 404 is an upper and lower structure, and the key under the bean cup 404 and the lid 405 form a coupling structure by engagement, and the key above the bean cup 404 and the hopper 402 form a coupling structure by engagement.

[0041] A protruding hopper base 450 is provided on the bottom surface of the hopper 402. The hopper base 450 is inserted into the bean cup 404. The entire hopper base 450 is cylindrical, and a plurality of key grooves are provided on the circumferential surface. The plurality of key grooves are evenly arranged circularly on the outer peripheral surface of the hopper base 450. By connecting the key grooves with the keys provided on the bean cup 404, a connection structure formed by engagement between the hopper 402 and the bean cup 404 is used. Moreover, each key groove of the hopper base 450 is in the shape of "凵" arranged vertically, and includes a first positioning groove 451 in the horizontal direction, a second positioning groove 452 in the horizontal direction, and a connecting groove 453 arranged vertically for connecting the first positioning groove 451 and the second positioning groove 452. Here, the first positioning groove 451 is located above the second positioning groove 452. When the entire hopper base 450 is inserted into the bean cup 404, when the key provided on the bean cup 404 and the first positioning groove provided on the hopper base 450 are firmly engaged, the capacity of the coffee powder placed in the bean cup 404 is in the lowest state. When the key of the bean cup 404 is slid along the connecting groove 453 from the first positioning groove 451 of the hopper base 450, that is, when the hopper base 450 is pulled out in the direction away from the bean cup until the key provided on the bean cup 404 and the second positioning groove provided on the hopper base 450 are engaged, the capacity of the coffee powder placed in the bean cup 404 is in the highest state.

[0042] Regardless of whether it is the first positioning groove 451 or the second positioning groove 452, when the key groove of the hopper base 450 is combined with the key of the bean cup 404, the stability and airtightness of the assembly of the main body are ensured, and the device can be started and ground in either of the two states.

[0043] The main body 401 is inserted into a drive plate 425 provided on the top surface of the hopper 402 via a cutter adjustment screw 424. The drive plate 425 has the key of the cutter adjustment screw 424 engaged in the key groove, and a connection structure formed by engagement between the main body 401 and the hopper 402 is used.

[0044] A rubber stopper 407 is provided at the bottom of the button cover 406, the bottom of the rubber stopper 407 is provided at the top of the inner top cover 409, a circuit board 411 is provided at the bottom of the inner top cover 409, the bottom of the circuit board 411 is provided at the bottom of the circuit board base 413, a battery 414 is provided at the bottom of the circuit board base 413, the battery 414 is provided at the top of the battery base 416, an electric motor 417 is provided at the bottom of the battery base 416, and the electric motor 417 is provided inside the electric motor base 419. A seal ring 420 is provided on one side of the motor base 419, and a spring 421 is provided on the bottom of the seal ring 420, with one end of the spring 421 attached to the top of the cutter adjustment screw 424. When the power is turned on, the motor 417 drives the rotating rod 429, which in turn drives the lower grinding disc 445 to rotate through a transmission unit, and the coffee beans pass between the upper grinding disc 440 and the lower grinding disc 445 and are ground into coffee powder.

[0045] A hopper opening is provided on one side of hopper 402, and a hopper door 403 is provided inside hopper 402. Hopper door 403 has a movable structure, and a hopper opening is provided on one side of hopper door 403, forming a structure for putting coffee beans in. After putting coffee beans in through the open hopper door 403, close hopper door 403 and turn on the grind button on the top of main body 401 to grind the beans.

[0046] Second embodiment:

[0047] The cutter adjustment screw 424 utilizes an engagement structure formed between the main body 401 and the hopper 402 by connecting a key on one side with a key groove on the other side of the wall of the drive plate base 427.

[0048] Third embodiment:

[0049] A spring 437 is provided between the hopper support part 433 and the hopper support plate 438, the hopper support part 433 is fixed to the hopper 450 as a non-rotating part via a screw 434, the hopper base 450 and the hopper 402 are securely fitted together as non-rotating parts, the hopper support plate 438 is fixed to the hopper support part 433 as a non-rotating part via a screw 439, the hopper support plate 438 generates an upward elastic force by receiving the spring 437, the lower grinding disc 445 is securely fastened to the rotating rod 429 via a grinding disc lock 446, a screw washer 447 and a screw 448, so that it can only rotate when driven by the electric motor 417 but cannot move up and down, and the lower grinding disc 445 generates an upward elastic force by receiving the spring 444.

[0050] When the cutter adjustment sleeve-type nut 428 moves upward, the springs 437 and 444 generate an upward elastic force, pushing the assembly of the hopper support base 436, upper abrasive disc 440, abrasive disc base 441, screw washer 442, and screw 443 back upward.

[0051] Fourth embodiment:

[0052] A spring 444 is provided on the top of the lower grinding disc 445, and a grinding disc lock 446 is provided on the bottom. The hopper support 433 is fixed to the hopper base 450 via screws 434 as a non-rotating part, the hopper base 450 and the hopper 402 are securely fitted in as non-rotating parts, the hopper support plate 438 is fixed to the hopper support 433 via screws 439 as a non-rotating part, and the hopper support plate 438 generates an upward elastic force by receiving a spring 437. The lower grinding disc 445 is securely fastened to the rotating rod 429 by the grinding disc lock 446, screw washer 447, and screw 448, so that it can only rotate when driven by the electric motor 417 but cannot move up and down. The lower grinding disc 445 generates an upward elastic force by receiving a spring 444.

[0053] When the cutter adjustment sleeve-type nut 428 moves upward, the springs 437 and 444 generate an upward elastic force, pushing the assembly of the hopper support base 436, upper abrasive disc 440, abrasive disc base 441, screw washer 442, and screw 443 back upward.

[0054] Fifth embodiment:

[0055] The assembly of the main body 401 includes a button cover 406, a rubber stopper 407, a screw 408, a top inner cover 409, a lamp post 410, a circuit board 411, a screw 412, a circuit board base 413, a battery 414, a screw 415, a battery base 416, a motor 417, a sealing ring 418, a motor base 419, a sealing ring 420, the main body 401, a spring 421, a pressure rod 422, a screw 423, and a cutter adjustment screw 424.

[0056] The hopper 402 assembly includes a drive plate 425, an elastic bead 426, a drive plate base 427, a hopper 402, a hopper door 403, a hopper base 450, a cutter adjustment sleeve-type nut 428, a rotating rod 429, a bearing 430, a bearing 431, a locking ring 432, a hopper support 433, a screw 434, a screw 435, a hopper support base 436, a spring 437, a hopper support plate 438, a screw 439, an upper abrasive disc 440, an abrasive disc base 441, a screw washer 442, a screw 443, a spring 444, a lower abrasive disc 445, an abrasive disc lock 446, a screw washer 447, and a screw 448.

[0057] Sixth embodiment:

[0058] A pressure rod 422 is provided on one side of the top of the cutter adjustment screw 424 facing the battery base 416, and one side of the battery base 416 is inserted into the top of the cutter adjustment screw 424. When the internal structure of the roughness adjustment mechanism in the main body 401 assembly is activated, only the main body 401, spring 421, pressure rod 422, screw 423, and cutter adjustment screw 424 rotate from 0 to 324 degrees, and power is transmitted via the cutter adjustment screw 424 to rotate the cutter adjustment sleeve-type nut 428 clockwise or counterclockwise. The cutter adjustment sleeve-type nut 428 It can move upward or downward as it rotates clockwise or counterclockwise, and as the cutter adjustment sleeve-type nut 428 rotates clockwise or counterclockwise, it moves upward or downward, driving the assembly of the hopper support base 436, upper abrasive disc 440, abrasive disc base 441, screw washer 442, and screw 443 within the hopper 402 assembly to move upward or downward at the same time.When it moves to the upper stop position, the coarseness adjustment mechanism is in the coarsest grinding state, and when it moves to the lower stop position, the coarseness adjustment mechanism is in the finest grinding state.

[0059] Seventh embodiment:

[0060] Referring to Figure 9 showing the structure of the hopper base 450, a convex ring structure concentric with the grinding disc lock 446 is provided on the bottom surface of the hopper base 450 around the outer periphery of the grinding disc lock 446, which is a scattering prevention rim 454 for preventing the scattering of ground coffee powder inside. Since coffee powder ground with a grinding disc has a centrifugal rotation speed when ground with the grinding disc, and therefore has potential energy that causes it to scatter outward, providing such a rim prevents most scattering, especially scattering toward the peripheral wall, and ensures that the coffee powder enters the bean cup 404 reliably.

[0061] The above is only a preferred embodiment of the present utility model, and does not limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A coffee grinder with adjustable grinding power, comprising: a lid provided at the bottom of a bean cup; a bean cup; a hopper provided at the top of the bean cup; and a body provided at the top of the hopper, The lid and the bean cup are connected by engagement, The bean cup and the hopper are connected by engagement, A protruding hopper base is provided on the bottom surface of the hopper, and the hopper base is inserted into the bean cup; a drive plate is provided on a top surface of the hopper base, a drive plate base is provided within the drive plate, and a protruding elastic bead is provided on one side of a wall surface of the drive plate base; a hopper opening is provided on one side of the hopper, and a hopper door is provided inside the hopper; The main body and the hopper are connected by engagement, The main body has a button cover on the top surface and a protruding cutter adjustment screw on the bottom surface. The cutter adjustment screw is inserted into the drive plate base, and one end of the cutter adjustment screw and the cutter adjustment sleeve nut have a threaded structure; a rotating rod is provided in the cutter adjusting sleeve-type nut, one end of the rotating rod is inserted into an electric motor provided in the cutter adjusting screw, and the other end is inserted into a hopper support; a hopper support base inserted into the hopper support, the hopper support base being provided on the top of a hopper support plate, an upper abrasive disc being provided on the bottom of the hopper support base, the upper abrasive disc being provided on the top of an abrasive disc base, and a lower abrasive disc being provided on the bottom of the abrasive disc base.

2. 2. The coffee grinder with adjustable grinding strength as claimed in claim 1, wherein the lower grinding disc is provided with a spring at the top and a grinding disc lock at the bottom.

3. 3. The coffee grinder with adjustable grinding strength as described in claim 2, wherein a grinding disc lock is provided on the bottom surface of the hopper base, and a convex ring structure is provided around the outer periphery of the grinding disc lock, the convex ring structure being a scattering prevention peripheral portion.

4. The entire hopper base is cylindrical, and a plurality of key grooves are provided on the circumferential surface. The plurality of key grooves are uniformly arranged circularly on the outer peripheral surface of the hopper base, and the number of sets of the key grooves is 2 to 5. The coffee grinder with adjustable grinding degree according to claim 3, characterized in that.

5. Each of the key grooves is in a "U" shape arranged in the vertical direction, and includes a first positioning groove in the horizontal direction, a second positioning groove in the horizontal direction, and a connecting groove arranged in the vertical direction for connecting the first positioning groove and the second positioning groove. The coffee grinder with adjustable grinding degree according to claim 3, characterized in that.

6. A rubber stopper is provided at the bottom of the button cover. The bottom of the rubber stopper is provided at the top of the top inner cover. A circuit board is provided at the bottom of the top inner cover. The bottom of the circuit board is provided on the circuit board base. A battery is provided at the bottom of the circuit board base. The battery is provided at the top of the battery base. An electric motor is provided at the bottom of the battery base. The electric motor is inserted into the electric motor base. A sealing ring is provided on one side of the electric motor base. A spring is provided on the bottom surface of the sealing ring. One end of the spring is provided at the top of the screw for cutter adjustment. The coffee grinder with adjustable grinding degree according to claim 2, characterized in that.

7. A pressing bar is provided on one side of the top of the screw for cutter adjustment facing the battery base. One side of the battery base is inserted into the top of the screw for cutter adjustment. The coffee grinder with adjustable grinding degree according to claim 3, characterized in that

8. A scale is provided on one side of the outer wall of the main body. The coffee grinder with adjustable grinding degree according to claim 4, characterized in that.

9. A pointer is provided on one side of the outer wall of the hopper. The coffee grinder with adjustable grinding degree according to claim 5, characterized in that.

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