Bean grinding device of coffee machine

Abstract

The utility model discloses a coffee machine bean grinding device which comprises a bean box assembly, a top cover assembly, an adjusting assembly and a grinding assembly, the bean box assembly comprises a bean box and a door body, the bean box is provided with a first limiting block and a bean outlet, the door body is provided with an opening and a baffle, and the opening or the baffle is opposite to the bean outlet; the top cover assembly comprises a cover plate and a mounting seat, the bean box assembly is detachably mounted in the mounting seat, the adjusting assembly comprises a first adjusting ring and a second adjusting ring, the first adjusting ring is provided with a first groove, the first limiting block is clamped in the first groove, the first adjusting ring and the second adjusting ring are meshed through a gear, and the grinding assembly is fixed below the bean box assembly. Comprising a grinding disc, a tool bit and a driving mechanism, the tool bit is arranged in the grinding disc, the grinding disc is provided with external threads, a second adjusting ring is provided with internal threads, the external threads are connected with the internal threads, a bean box rotates to enable a first adjusting ring to rotate and drive the second adjusting ring to rotate, the second adjusting ring enables the grinding disc to move up and down relative to the tool bit, the grinding space is changed, and the grinding thickness of coffee powder is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee machines, and in particular to a coffee bean grinding device for a coffee machine. Background Art

[0002] Before brewing coffee, you need to grind the coffee beans into coffee powder. In a semi-automatic coffee machine, the powder is collected through a funnel and then installed on the hot water outlet to brew and extract the coffee powder. In the coffee brewing process, the coarseness of the coffee powder is an important factor affecting the flavor of the coffee powder after extraction. Coffee with different tastes has different requirements for the coarseness of the coffee powder.

[0003] The bean grinding device is generally provided with a dynamic grinder and a static grinder. The coffee beans are placed in the gap formed between the dynamic grinder and the static grinder. The motor drives the dynamic grinder to rotate, and the coffee beans are ground into coffee powder through the cooperation of the dynamic grinder and the static grinder. The conventional coffee machine bean grinding device is a device that is separately provided with a device for adjusting the coarseness of the grinding. The device uses an external adjustable knob. The rotation of the knob drives the transmission gear to rotate, and the transmission gear meshes with the static grinder to achieve the purpose of adjusting the coarseness of the coffee powder. The existing bean grinding device requires a separate adjustment mechanism, which makes the overall structure of the coffee machine more complicated and difficult to assemble. Utility Model Content

[0004] One of the purposes of the utility model is to provide a coffee bean grinding device for a coffee machine, so as to solve the problem that the existing coffee machine grinding requires an additional adjustment mechanism, which leads to a complex overall structure of the coffee machine.

[0005] The coffee bean grinding device of the utility model can be realized by the following technical solutions:

[0006] A coffee bean grinding device, comprising:

[0007] A bean box assembly, comprising a bean box and a door body, wherein the bean box is provided with a first limit block and a bean outlet, and the door body is located at the bottom of the bean box and is provided with an opening and a baffle, and when the bean box rotates, the opening or the baffle is opposite to the bean outlet;

[0008] A top cover assembly, comprising a cover plate and a mounting seat, wherein the mounting seat is fixed to the cover plate, and the bean box assembly is detachably mounted in the mounting seat;

[0009] An adjustment component is located below the mounting seat, and the adjustment component includes a first adjustment ring and a second adjustment ring. The first adjustment ring is provided with a first groove. When the bean box component is located in the mounting seat, the first limit block is clamped in the first groove. The first adjustment ring is meshed with the second adjustment ring through a gear, and the inner wall of the second adjustment ring is provided with an internal thread.

[0010] A grinding assembly is fixed below the top cover assembly through a bracket and is connected to the bean box assembly; the grinding assembly includes a grinding disc, a cutter head and a driving mechanism, the cutter head is built into the grinding disc, an external thread is provided on the outside of the grinding disc, the external thread is connected to the internal thread, and the cutter head is connected to the driving mechanism.

[0011] In one embodiment, the grinding disc includes a grinding disc bracket, a blade and an upper cover, the blade disc is fixedly mounted on the upper cover, the external thread is arranged on the outer wall of the grinding disc bracket, the inner wall of the grinding disc bracket is provided with a limiting portion, the outer wall of the upper cover is provided with a limiting groove, and the limiting portion and the limiting groove are detachably buckled.

[0012] In one embodiment, the upper cover is provided with a handle, and the grinding disc bracket is provided with an installation cavity. When the upper cover is buckled with the grinding disc bracket, the blade disc is located in the installation cavity.

[0013] In one embodiment, the bean box assembly further includes a limiting ring, the bean box includes a bean bin and a bottom cover, the limiting ring is located between the bean bin and the bottom cover, the bean bin is fixedly connected to the bottom cover, a step surface and a second groove are provided inside the limiting ring, the door body is provided with a protrusion and a limiting portion, the protrusion is clamped on the step surface, and the limiting portion is clamped in the second groove.

[0014] In one embodiment, the door body is provided with an annular through hole, the bean bin is provided with a plurality of positioning posts, the positioning posts pass through the annular through hole and are fixedly connected to the bottom cover, and the first limiting block is provided on the side wall of the bottom cover.

[0015] In one embodiment, the limiting ring is provided with a second limiting block, and the mounting seat is provided with a third groove. When the bean box is mounted on the mounting seat, the second limiting block is located in the third groove.

[0016] In one embodiment, a bean grinding chamber is formed between the grinding disc and the cutter head, and the bracket is provided with a powder outlet channel, which is communicated with the bean grinding chamber.

[0017] In one embodiment, a positioning protrusion is provided on the side wall of the limiting ring, and a positioning groove matching the positioning protrusion is provided on the mounting seat.

[0018] In one embodiment, the inner wall of the first adjustment ring is divided into an upper part and a lower part by a boss, the lower part is provided with a plurality of convex parts, and the outer wall of the second adjustment ring is provided with the gear, and the convex parts are meshed with the gear.

[0019] In one embodiment, the side wall of the second adjustment ring is provided with an annular boss, the bottom of the annular boss is provided with a plurality of slots, the bracket is provided with an ejector pin, and the ejector pin cooperates with the slots.

[0020] Compared with the prior art, the coffee bean grinding device of the utility model has the following beneficial effects:

[0021] When the bean box is mounted on the cover of the coffee machine, the first limit block of the bean box is stuck in the first groove of the first adjustment ring, so that the rotation of the bean box can drive the first adjustment ring to rotate, and then drive the second adjustment ring to rotate, and finally the grinding disc moves up and down relative to the cutter head through the second adjustment ring, changing the grinding space of the grinding chamber to adjust the grinding coarseness of the coffee powder. The utility model does not need to set an additional adjustment mechanism, and can directly adjust the grinding coarseness by rotating the bean box, and has a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of the coffee bean grinding device of the utility model;

[0024] Figure 2 yes Figure 1 The installation diagram of the bean box assembly is shown;

[0025] Figure 3 yes Figure 1 An exploded view of the grinding device shown;

[0026] Figure 4 yes Figure 1 A cross-sectional view of the grinding device shown;

[0027] Figure 5 yes Figure 1 An exploded view of the grinding assembly shown;

[0028] Figure 6 yes Figure 1 An exploded view of the bean box assembly is shown;

[0029] Figure 7 yes Figure 6 A schematic diagram of the installation structure between the door body and the bottom cover in the bean box assembly is shown;

[0030] Figure 8 yes Figure 6 Schematic diagram of the bean bin structure in the bean box assembly shown.

[0031] Indications in the figure: 1. bean box assembly; 11. bean box; 111. bean outlet; 112. first stopper; 12. door body; 121. opening; 122. baffle; 123. protrusion; 124. stopper; 125. annular through hole; 126. rotating shaft; 13. stopper ring; 131. step surface; 132. second groove; 133. second stopper; 134. positioning protrusion; 14. bean bin; 141. positioning column; 142. shaft hole; 15. bottom cover; 2. top cover assembly; 21. cover plate; 22. mounting seat; 221. third groove; 222. positioning Groove; 3. Adjustment assembly; 31. First adjustment ring; 311. First groove; 312. Boss; 313. Protrusion; 32. Second adjustment ring; 321. Internal thread; 322. Gear; 323. Annular boss; 324. Slot; 4. Grinding assembly; 41. Grinding disc; 411. Grinding disc bracket; 4111. Limiting portion; 4112. External thread; 412. Knife disc; 413. Upper cover; 4131. Limiting groove; 4132. Handle; 42. Knife head; 43. Driving mechanism; 44. Grinding chamber; 5. Bracket; 51. Powder outlet channel; 52. Ejector pin. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0034] like Figure 1-6As shown, the coffee machine bean grinding device of this embodiment includes a bean box assembly 1, a top cover assembly 2, an adjustment assembly 3 and a grinding assembly 4. The bean box assembly 1 includes a bean box 11 and a door body 12. The bean box 11 is provided with a first limit block 112 and a bean outlet 111. The door body 12 is located at the bottom of the bean box 11 and is provided with an opening 121 and a baffle 122. When the bean box 11 rotates, the opening 121 or the baffle 122 is opposite to the bean outlet 111, so that the bean outlet 111 of the bean box 11 is opened or closed.

[0035] The top cover assembly 2 includes a cover plate 21 and a mounting seat 22 . The mounting seat 22 is fixed on the cover plate 21 . The bean box assembly 1 is detachably mounted in the mounting seat 22 , that is, the bean box assembly 1 can be removed from the mounting seat 2 .

[0036] The adjustment assembly 3 is located below the mounting seat 2, and includes a first adjustment ring 31 and a second adjustment ring 32. The first adjustment ring 31 is provided with a first groove 311. When the bean box assembly 1 is mounted in the mounting seat 22, the first limit block 112 is clamped in the first groove 311, so that the first adjustment ring 31 is connected to the bean box 11. The first adjustment ring 31 and the second adjustment ring 32 are engaged through gears. When the bean box 11 is rotated, the first adjustment ring 31 is driven to rotate, and the second adjustment ring 32 is also rotated by the gear engagement principle.

[0037] The grinding assembly 4 is fixed below the top cover assembly 2 through a bracket 5, and is connected to the bean box assembly 1. Coffee beans are transported to the grinding assembly 4 through the bean box assembly 1, and the coffee beans are ground into coffee powder through the grinding assembly 4. The grinding assembly 4 includes a grinding disc 41, a cutter head 42, and a driving mechanism 43. The cutter head 42 is connected to the driving mechanism 43, so as to provide power for the cutter head 42. In this embodiment, the cutter head 42 is a conical cutter, which is built into the grinding disc 41. The gap between the two forms a grinding chamber 44. The bracket 5 is provided with a powder outlet channel 51, which is connected to the grinding chamber 44. The ground coffee powder is output from the powder outlet channel 51. In actual application, the coffee powder transported from the powder outlet channel 51 is received by a powder bowl or a funnel. The grinding disc 41 is provided with an external thread 4112 on the outside, and the inner wall of the second adjustment ring 32 is provided with an internal thread 321, and the external thread 4112 is connected to the internal thread 321. When the second adjustment ring 32 rotates, the grinding disc 41 moves up and down accordingly, so as to adjust the distance between the grinding disc 41 and the cutter head 42. When the grinding disc 41 moves upward, the distance between the two increases, and the ground coffee powder is coarser; when the grinding disc 41 moves downward, the distance between the two decreases, and the ground coffee powder is finer. For the bean grinding device of this embodiment, the user only needs to rotate the bean box 11, and adjust the distance between the grinding disc 41 and the cutter head 42 through the mutual connection between the first adjustment ring 31 and the second adjustment ring 32, so as to adjust the coarseness of the ground coffee powder.

[0038] Further, such as Figures 3 to 5 As shown, the grinding disc 41 includes a grinding disc support 411, a knife disc 412 and an upper cover 413. The knife disc 412 is mounted on the upper cover 413. In this embodiment, the knife disc 412 is conical and fixed on the upper cover 413. Of course, the knife disc 412 can also be detachably mounted on the upper cover 413. The external thread 4112 is arranged on the outer wall of the grinding disc support 411, that is, the second adjustment ring 32 is connected to the grinding disc support 411 by threads. A limiting portion 4111 is provided on the inner wall of the grinding disc support 411, and a limiting groove 4131 is provided on the outer wall of the upper cover 413. The limiting portion 4111 and the limiting groove 4131 are detachably buckled, so that the upper cover 413 and the grinding disc support 411 can be detachably mounted. More specifically, the upper cover 413 is provided with a handle 4132, and the grinding disc support 411 is provided with an installation cavity. When the upper cover 413 is buckled with the grinding disc support 411, the blade disc 412 is located in the installation cavity. The upper cover 413 and the grinding disc support 411 are assembled in a buckling manner, and the upper cover 413 can be separated from the grinding disc support 411 by rotating the upper cover 413. The upper cover 413 is taken out by the handle 4132, so that the user can clean the coffee powder in the blade disc 412.

[0039] Further, such as Figure 4 , 6 As shown in , 7 and 8, the bean box assembly 1 also includes a limiting ring 13, the bean box 11 includes a bean bin 14 and a bottom cover 15, the limiting ring 13 is located between the bean bin 14 and the bottom cover 15, the bean bin 14 is fixedly connected to the bottom cover 15, a step surface 131 and a second groove 132 are provided inside the limiting ring 13, the door body 12 is provided with a protrusion 123 and a limiting portion 124, the protrusion 123 is clamped on the step surface 131, and the limiting portion 124 is clamped in the second groove 132, so that the door body 12 can be restricted on the limiting ring 13, and when the bean box 11 is slightly rotated a certain distance, the door body 12 does not rotate with it.

[0040] Furthermore, the door body 12 is provided with an annular through hole 125 and a rotating shaft 126, and the bean bin 14 is provided with a plurality of positioning posts 141 and shaft holes 142. The positioning posts 141 pass through the annular through hole 125 and are fixedly connected to the bottom cover 15, so that the bean bin 14 and the bottom cover 15 are fixed together. The rotating shaft 126 is inserted into the shaft hole 142. When the bean bin 14 is rotated, the positioning posts 141 can slide in the annular through hole 125. Within this distance, the door body 12 is fixed on the limiting ring 13. As the bean bin 14 rotates, the bean outlet 111 slowly opens or closes. When beans need to be ground, the bean bin 14 is slowly rotated, and the opening 121 gradually faces the bean outlet 111. At this time, the distance between the knife disc 412 and the knife head 42 is preliminarily adjusted. When the positioning column 141 slides to the edge of the annular through hole 125, the bean outlet 111 of the bean bin 14 is fully opened. The bean bin 14 is continuously rotated, and the limiting portion 124 is disengaged from the second groove 132 until the limiting portion 124 is stuck on the edge of the step surface 131, and the bean bin 14 cannot be rotated. During this stroke, the user can control the stroke of rotating the bean bin 14 according to actual needs to adjust the gap between the knife disc 412 and the knife head 42 to adjust the required coarseness of coffee powder grinding.

[0041] The first limit block 112 is arranged on the side wall of the bottom cover 14, the limit ring 13 is provided with a second limit block 133, and the mounting seat 22 is provided with a third groove 221. When the bean box 11 is mounted on the mounting seat 2, the second limit block 133 is located in the third groove 221, and the bottom cover 14 is located in the first adjustment ring 32. Specifically, the inner wall of the first adjustment ring 31 is divided into an upper part and a lower part by a boss, and the lower part is provided with a plurality of convex parts 313. The outer wall of the second adjustment ring 32 is provided with a gear 322, and the convex part 313 is adapted to the gear 322. The first groove 311 is located in the upper part, and the boss also plays a certain supporting role for the bottom cover 14. When the bean bin 14 is rotated clockwise or counterclockwise, the first limit block 112 and the second limit block 133 are gradually displaced up and down, so that the bean bin 14 is stuck on the cover plate 21 and cannot be removed. The bean bin 14 is rotated counterclockwise or clockwise until the first limit block 112 is flush with the second limit block 133 , and the bean bin 14 is in a closed state. At this time, the first limit block 112 is located directly below the third groove 221 , and the bean box 11 can be removed.

[0042] Furthermore, a positioning protrusion 134 is provided on the side wall of the limiting ring 13, and a positioning groove 222 matching the positioning protrusion 134 is provided on the mounting seat 22. When the bean box assembly 1 is installed on the cover plate 2, the positioning protrusion 134 is clamped on the positioning groove 222, so that the bean box assembly 1 is more stably installed on the cover plate 2.

[0043] Furthermore, the second adjustment ring 32 is provided with an annular boss 323 , a plurality of slots 324 are provided at the bottom of the annular boss 323 , and a ejector pin 52 is provided on the bracket 5 . The ejector pin 52 cooperates with the slots 324 to support the second adjustment ring 32 .

[0044] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A coffee bean grinding device, characterized in that: include: A bean box assembly, comprising a bean box and a door body, wherein the bean box is provided with a first limit block and a bean outlet, and the door body is located at the bottom of the bean box and is provided with an opening and a baffle, and when the bean box rotates, the opening or the baffle is opposite to the bean outlet; A top cover assembly, comprising a cover plate and a mounting seat, wherein the mounting seat is fixed to the cover plate, and the bean box assembly is detachably mounted in the mounting seat; An adjustment component is located below the mounting seat, and the adjustment component includes a first adjustment ring and a second adjustment ring. The first adjustment ring is provided with a first groove. When the bean box component is located in the mounting seat, the first limit block is clamped in the first groove. The first adjustment ring is meshed with the second adjustment ring through a gear, and the inner wall of the second adjustment ring is provided with an internal thread. A grinding assembly is fixed below the top cover assembly through a bracket and is connected to the bean box assembly; the grinding assembly includes a grinding disc, a cutter head and a driving mechanism, the cutter head is built into the grinding disc, an external thread is provided on the outside of the grinding disc, the external thread is connected to the internal thread, and the cutter head is connected to the driving mechanism.

2. The coffee bean grinding device of claim 1, characterized in that: The grinding disc includes a grinding disc bracket, a knife disc and an upper cover, the knife disc is installed on the upper cover, the external thread is arranged on the outer wall of the grinding disc bracket, the inner wall of the grinding disc bracket is provided with a limiting portion, the outer wall of the upper cover is provided with a limiting groove, and the limiting portion and the limiting groove are detachably buckled.

3. The coffee bean grinding device of claim 2, characterized in that: The upper cover is provided with a handle, and the grinding disc bracket is provided with an installation cavity. When the upper cover is buckled with the grinding disc bracket, the knife disc is located in the installation cavity.

4. The coffee bean grinding device of claim 1, characterized in that: The bean box assembly also includes a limiting ring, the bean box includes a bean bin and a bottom cover, the limiting ring is located between the bean bin and the bottom cover, the bean bin is fixedly connected to the bottom cover, a step surface and a second groove are provided inside the limiting ring, the door body is provided with a protrusion and a limiting portion, the protrusion is clamped on the step surface, and the limiting portion is clamped in the second groove.

5. The coffee bean grinding device of claim 4, characterized in that: The door body is provided with an annular through hole, the bean bin is provided with a plurality of positioning columns, the positioning columns pass through the annular through hole and are fixedly connected with the bottom cover, and the first limiting block is arranged on the side wall of the bottom cover.

6. The coffee bean grinding device of claim 4, characterized in that: The limiting ring is provided with a second limiting block, and the mounting seat is provided with a third groove. When the bean box is mounted on the mounting seat, the second limiting block is located in the third groove.

7. The coffee bean grinding device of claim 2, characterized in that: A bean grinding chamber is formed between the grinding disc and the cutter head, and the bracket is provided with a powder outlet channel, which is communicated with the bean grinding chamber.

8. The coffee bean grinding device of claim 4, characterized in that: The side wall of the limiting ring is provided with a positioning protrusion, and the mounting seat is provided with a positioning groove matching the positioning protrusion.

9. The coffee bean grinding device of claim 3, characterized in that: The inner wall of the first adjustment ring is divided into an upper part and a lower part by a boss, the lower part is provided with a plurality of convex parts, and the outer wall of the second adjustment ring is provided with the gear, and the convex parts are matched with the gear.

10. The coffee bean grinding device of claim 1, characterized in that: The second adjusting ring is provided with an annular boss, a plurality of slots are provided at the bottom of the annular boss, and an ejector pin is provided on the bracket, and the ejector pin cooperates with the slots.

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