A high capacity coffee grinder

Abstract

This invention provides a high-capacity coffee grinder, aiming to solve the problem in existing technologies where the drive assembly drives the first grinding blade to rotate relative to the second grinding blade, resulting in the center rod occupying a large space. A high-capacity coffee grinder includes: a grinder body, within which a first grinding blade and a second grinding blade are disposed, the first grinding blade being located within the grinder body, and a grinding gap forming between the second grinding blade and the first grinding blade, the second grinding blade being rotatably disposed within the grinder body; a drive assembly located on the upper side of the grinder body; and a transmission assembly located between the second grinding blade and the drive assembly, the drive assembly driving the second grinding blade to rotate relative to the first grinding blade through the transmission assembly; the transmission assembly forming a bean hopper. This invention, by using a transmission assembly to form a bean hopper, can accommodate more coffee beans compared to existing designs where the transmission assembly is located in the bean hopper.

Description

Technical Field

[0001] This invention belongs to the field of grinding machine technology, specifically relating to a large-capacity coffee grinder. Background Technology

[0002] In the prior art, a coffee grinder includes a grinder body, a first grinding blade, and a second grinding blade. The second grinding blade is arranged around the first grinding blade, the first grinding blade is rotatably disposed within the grinder body, and the second grinding blade is fixedly disposed within the grinder body. A drive assembly is provided on the grinder body, and a central rod is provided between the drive assembly and the first grinding blade. The drive assembly drives the first grinding blade to rotate relative to the second grinding blade through the central rod. In this solution, the central rod occupies space within the grinder body, resulting in a reduction in grinding efficiency. Summary of the Invention

[0003] This invention provides a large-capacity coffee grinder, aiming to solve the problem in the prior art where the drive assembly drives the first grinding blade to rotate relative to the second grinding blade through the central rod, resulting in the central rod occupying a large space.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] This invention provides a high-capacity coffee grinder, comprising:

[0006] The grinding machine body is provided with a first grinding blade and a second grinding blade. The first grinding blade is disposed in the grinding machine body, and a grinding gap is formed between the second grinding blade and the first grinding blade. The second grinding blade is rotatably disposed in the grinding machine body, and the first grinding blade and the second grinding blade rotate relative to each other when rotating.

[0007] A drive assembly, wherein the drive assembly is disposed on the upper side of the grinding machine body; and,

[0008] A transmission assembly is located between the second grinding blade and the drive assembly. The drive assembly drives the second grinding blade to rotate relative to the first grinding blade through the transmission assembly. The transmission assembly forms a bean hopper.

[0009] A further embodiment: the second sharpening tool is annular, and the first sharpening tool is located inside the second sharpening tool. The first sharpening tool is a cone with a diameter that gradually increases from top to bottom.

[0010] A further embodiment: the transmission assembly includes;

[0011] The first transmission unit is rotatably mounted on the grinding machine body;

[0012] The second transmission unit is located between the second grinding blade and the first transmission unit. The second transmission unit is rotatably disposed in the grinding machine body. The drive assembly drives the second transmission unit through the first transmission unit to make the second grinding blade rotate relative to the first grinding blade.

[0013] Based on the above technical solution: the first transmission part and the second transmission part make the connection between the drive component and the second grinding tool more stable.

[0014] A further embodiment: The upper side of the grinding machine body is provided with an opening, and the first transmission part is covered on the opening and can rotate relative to the grinding machine body.

[0015] A further embodiment: The grinding machine body includes a cylindrical shell that runs vertically through the interior, and the second transmission unit is arranged around the inner wall of the grinding machine body.

[0016] Based on the above technical solution: the second transmission unit is arranged around the inner side wall of the grinder, which increases the capacity of the bean hopper, allowing more coffee beans to be placed and improving grinding efficiency.

[0017] A further solution: The second transmission part is cylindrical and has a bean hopper inside.

[0018] A further embodiment: A bearing is provided between the second transmission unit and the inner wall of the grinding machine body.

[0019] Based on the above technical solution, the bearing makes the rotation of the second rotating part more stable.

[0020] A further embodiment: The second transmission unit includes an upper cylinder and a lower cylinder. The lower end of the upper cylinder is connected to the upper end of the lower cylinder by a thread. An inwardly recessed annular bearing mounting part is provided on the outer wall of the lower end of the upper cylinder or the outer wall of the upper end of the lower cylinder. The bearing is sleeved on the bearing mounting part.

[0021] Based on the above technical solution, the ring bearing mounting part makes the bearing more stable when it is mounted on the second transmission part.

[0022] A further embodiment: The inner wall of the cylindrical shell is provided with a bearing step, and the bearing step abuts against the upper end of the bearing.

[0023] A further embodiment: the lower side of the second transmission part is covered on the second grinding tool, and the first transmission part is covered on the upper side of the second transmission part.

[0024] A further solution: The upper sides of the first transmission part and the second transmission part are connected by threads.

[0025] A further solution: The second grinding tool is inserted into the lower end of the second transmission part and fixedly sealed.

[0026] Based on the above technical solution, the connection stability between the second grinding tool and the second transmission unit is guaranteed.

[0027] A further embodiment: the drive assembly includes an upper cover and a handle connected to the upper cover; the transmission assembly includes a feed inlet communicating with the bean hopper, and the upper cover is disposed at the feed inlet and detachably connected to the transmission assembly.

[0028] A further embodiment: the grinding machine body also includes an adjustment component for adjusting the grinding gap between the first grinding blade and the second grinding blade.

[0029] Based on the above technical solution, the adjustment component allows users to easily adjust the grind size of the coffee beans.

[0030] A further embodiment: The adjustment assembly includes a first adjustment part and a second adjustment part. The first adjustment part is movable up and down within the grinding machine body. The first adjustment part is integrally formed and fixedly connected to the lower side of the first grinding blade or is fixedly connected separately. The second adjustment part is rotatably mounted on the grinding machine body. The second adjustment part is threadedly connected to the first adjustment part. A rotating part is provided on the outer wall of the second adjustment part.

[0031] A further solution: The first adjustment part includes an adjustment seat, and at least two guide blocks are provided on the adjustment seat along the circumference. The grinding machine body is provided with guide grooves corresponding to the guide blocks, and the guide blocks are disposed in the guide grooves that can move up and down.

[0032] Based on the above technical solution: the guide block and the guide groove cooperate to make the first adjustment part move up and down stably and smoothly.

[0033] A further embodiment: the outer wall of the guide block is connected to the second adjustment part by threads.

[0034] A further solution: The adjustment seat is provided with a tool holder in the middle, and the first grinding tool is detachably connected to the tool holder by a thread;

[0035] The adjusting seat is ring-shaped and connected to the knife holder via a connecting part. A powder leakage channel is provided between the adjusting seat and the knife holder.

[0036] A further embodiment: The tool holder is provided with a polygonal positioning hole, and a positioning shaft is provided through the first grinding blade from top to bottom. The positioning shaft includes a stop block, a through section, a polygonal positioning section and a threaded section from top to bottom. The stop block is located at the top of the first grinding blade, the through section is located in the center hole of the first grinding blade, the polygonal positioning section is located in the polygonal positioning hole, and the threaded section fixes the tool holder and the first grinding blade together with a nut.

[0037] Based on the above technical solution: the thread of the positioning shaft and the nut cooperate to enable the first adjusting part to drive the first grinding knife to move up and down, thereby realizing the adjustment of the grinding gap.

[0038] A further embodiment: The grinding machine body also includes a splicing section located at the bottom, the upper end of the splicing section is provided with several arc-shaped plates, and the guide groove is formed on two adjacent arc-shaped plates. The second adjustment part is sleeved on the splicing section from top to bottom and the lower end of the second adjustment part abuts against the step of the splicing section.

[0039] A further embodiment: A pressure ring is provided on the upper side of the second adjustment part, the lower end of the pressure ring abuts against the upper end of the second adjustment part, the lower part of the pressure ring is threaded onto several arc-shaped plates, and the upper end of the pressure ring is threaded to the grinding machine body.

[0040] Based on the above technical solution: the pressure ring restricts the movement of the second adjustment part and prevents the second adjustment part from separating from the grinding machine body.

[0041] A further solution: The bottom end of the splicing section is connected to a powder hopper by means of threads or magnetic attraction.

[0042] The beneficial effects of this invention are as follows:

[0043] The grinding machine body of this invention is provided with a first grinding blade and a second grinding blade. The second grinding blade is rotatably disposed within the grinding machine body. The driving assembly is provided on the upper side of the grinding machine body. A transmission assembly is provided between the driving assembly and the second grinding blade. The driving assembly drives the second grinding blade to rotate relative to the first grinding blade through the transmission assembly. The transmission assembly forms a bean hopper. Compared with the prior art, which uses a central shaft to drive the second grinding blade within the bean hopper, the bean hopper of this invention does not have a central shaft, allowing the bean hopper to hold more coffee beans, thereby improving the grinding efficiency of the coffee grinder. Attached Figure Description

[0044] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0046] Figure 2 This is a schematic diagram of the structure of the present invention.

[0047] Figure 3 This is an exploded structural diagram of the regulating component in this invention.

[0048] Figure 4 This is an exploded structural diagram of the transmission component in this invention.

[0049] Figure 5 This is a cross-sectional structural diagram of the adjustment component in this invention.

[0050] Explanation of the labels in the diagram:

[0051] 1-Grinding machine body; 2-First grinding blade; 3-Second grinding blade; 4-Drive assembly; 41-Upper cover; 42-Handle; 5-Transmission assembly; 51-First transmission part; 52-Second transmission part; 521-Upper cylinder; 522-Lower cylinder; 6-Bearing; 7-Bearing mounting part; 8-Bearing step; 9-Adjusting assembly; 91-First adjusting part; 92-Second adjusting part; 93-Adjusting seat; 94-Guide block; 95-Guide groove; 96-Blade holder; 97-Connecting part; 10-Positioning shaft; 11-Stop block; 12-Splicing section; 13-Arc plate; 14-Pressure ring; 15-Powder hopper. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the protection scope of the present invention.

[0053] like Figures 1 to 5 As shown, this embodiment provides a large-capacity coffee grinder, including:

[0054] The grinding machine body 1 is provided with a first grinding blade 2 and a second grinding blade 3 inside the grinding machine body 1. A grinding gap is formed between the second grinding blade 3 and the first grinding blade 2. The second grinding blade 3 is rotatably disposed inside the grinding machine body 1, and the first grinding blade 2 and the second grinding blade 3 rotate relative to each other when rotating.

[0055] Drive assembly 4, the drive assembly 4 being disposed on the grinding machine body 1; and,

[0056] The transmission component 5 is located between the second grinding blade 3 and the drive component 4. The drive component 4 drives the second grinding blade 3 to rotate relative to the first grinding blade 2 through the transmission component 5. The transmission component 5 forms a bean hopper.

[0057] like Figure 1 As shown, the second sharpening knife 3 is annular, and the first sharpening knife 2 is located inside the second sharpening knife 3. The first sharpening knife 2 is a cone with a diameter that gradually increases from top to bottom.

[0058] like Figure 1 As shown, the transmission assembly 5 includes;

[0059] The first transmission unit 51 is rotatably mounted on the grinding machine body 1;

[0060] The second transmission part 52 is located between the second grinding blade 3 and the first transmission part 51. The second transmission part 52 is rotatably disposed inside the grinding machine body 1. The drive assembly 4 drives the second transmission part 52 through the first transmission part 51 to make the second grinding blade 3 rotate relative to the first grinding blade 2.

[0061] like Figure 1 As shown, the grinding machine body 1 has an opening on its upper side, and the first transmission part 51 is covered on the opening and can rotate relative to the grinding machine body 1.

[0062] Specifically, the outer wall of the first transmission part 51 is provided with a number of indicator arrows, which are used to remind the user of the rotation direction.

[0063] like Figure 1 As shown, for ease of gripping by the user, the grinding machine body 1 includes a cylindrical shell that runs vertically through the machine, and the second transmission part 52 is arranged around the inner wall of the grinding machine body 1.

[0064] like Figure 1 As shown, the second transmission part 52 is cylindrical and has a bean hopper inside. Compared with the prior art where the bean hopper has a central shaft, the bean hopper in this embodiment can hold more coffee beans.

[0065] like Figure 1As shown, a bearing 6 is provided between the second transmission part 52 and the inner wall of the grinding machine body 1, and the bearing 6 makes the second transmission part 52 more stable when rotating.

[0066] like Figure 1 or Figure 4 As shown, the second transmission part 52 includes an upper cylinder 521 and a lower cylinder 522. The lower end of the upper cylinder 521 and the upper end of the lower cylinder 522 are connected by threads. An inwardly recessed annular bearing mounting part 7 is provided on the outer wall of the lower end of the upper cylinder 521 or the outer wall of the upper end of the lower cylinder 522. The bearing 6 is sleeved on the bearing mounting part 7, so that the bearing 6 is not easy to move up and down, and the bearing 6 is more stable when rotating.

[0067] like Figure 1 As shown, in order to further improve the stability of the bearing 6 during rotation, a bearing step 8 is provided on the inner wall of the cylindrical shell, and the bearing step 8 abuts against the upper end of the bearing 6.

[0068] like Figure 1 As shown, the lower side of the second transmission part 52 covers the second grinding tool 3, and the first transmission part 51 covers the upper side of the second transmission part 52.

[0069] like Figure 1 As shown, the upper sides of the first transmission part 51 and the second transmission part 52 are connected by threads.

[0070] like Figure 1 As shown, the second grinding blade 3 is inserted into the lower end of the second transmission part 52 and fixedly sealed to ensure the stability of the connection between the second grinding blade 3 and the second transmission part 52.

[0071] like Figure 1 or Figure 2 As shown, the drive assembly 4 includes an upper cover 41 and a handle 42 connected to the upper cover 41; the transmission assembly 5 includes a feed inlet communicating with the bean hopper, and the upper cover 41 is placed over the feed inlet and detachably connected to the transmission assembly 5.

[0072] like Figure 1 or Figure 3 As shown, considering that users may need to adjust the size of the coffee powder after grinding, the grinder body 1 also includes an adjustment component 9 for adjusting the grinding gap between the first grinding blade 2 and the second grinding blade 3.

[0073] like Figure 3As shown, the adjustment component 9 includes a first adjustment part 91 and a second adjustment part 92. The first adjustment part 91 is movable up and down inside the grinding machine body 1. The first adjustment part 91 is integrally formed with the lower side of the first grinding blade 2 and fixedly connected or separately. The second adjustment part 92 is rotatably mounted on the grinding machine body 1. The second adjustment part 92 is threadedly connected to the first adjustment part 91. A rotating part is provided on the outer wall of the second adjustment part 92.

[0074] like Figure 3 As shown, the first adjustment part 91 includes an adjustment seat 93, and at least two guide blocks 94 are provided on the adjustment seat 93 along the circumferential direction. The grinding machine body 1 is provided with a guide groove 95 corresponding to the guide block 94, and the guide block 94 is disposed in the guide groove 95 that can move up and down.

[0075] like Figure 3 As shown, the outer wall of the guide block 94 is connected to the second adjustment part 92 by a thread.

[0076] like Figure 5 As shown, the adjustment seat 93 is provided with a knife holder 96 in the middle, and the first grinding knife 2 is detachably connected to the knife holder 96 by a thread;

[0077] The adjusting seat 93 is annular and is connected to the knife holder 96 via the connecting part 97. A powder leakage channel is provided between the adjusting seat 93 and the knife holder 96.

[0078] like Figure 3 As shown, the tool holder 96 is provided with a polygonal positioning hole, and the first grinding blade 2 is provided with a positioning shaft 10 from top to bottom. The positioning shaft 10 includes a stop block 11, a through section, a polygonal positioning section and a threaded section from top to bottom. The stop block 11 is located at the top of the first grinding blade 2, the through section is located in the center hole of the first grinding blade 2, the polygonal positioning section is located in the polygonal positioning hole, and the threaded section fixes the tool holder 96 and the first grinding blade 2 together with a nut.

[0079] like Figure 3 As shown, the grinding machine body 1 also includes a splicing section 12 located at the bottom. The upper end of the splicing section 12 extends upward and is provided with a plurality of arc-shaped plates 13. The guide groove 95 is formed on two adjacent arc-shaped plates 13. The second adjustment part 92 is sleeved on the splicing section 12 from top to bottom and the lower end of the second adjustment part 92 abuts against the step of the splicing section 12.

[0080] like Figure 1As shown, a pressure ring 14 is provided on the upper side of the second adjustment part 92. The lower end of the pressure ring 14 abuts against the upper end of the second adjustment part 92. The lower part of the pressure ring 14 is threaded onto several arc-shaped plates 13. The upper end of the pressure ring 14 is threaded to the grinding machine body 1.

[0081] Specifically, rotating the second adjustment part 92 clockwise moves the first adjustment part 91 upward, reducing the grinding gap between the first grinding blade 2 and the second grinding blade 3, resulting in finer coffee powder from the coffee grinder; rotating the second adjustment part 92 counterclockwise moves the first adjustment part 91 downward, increasing the grinding gap between the first grinding blade 2 and the second grinding blade 3, resulting in coarser coffee powder from the coffee grinder.

[0082] like Figure 1 As shown, in order to facilitate the user to pour out the ground coffee powder, the bottom end of the splicing section 12 is connected to a powder container 15 by means of threads or magnetic attraction.

[0083] Working principle explanation:

[0084] In this embodiment, the drive assembly 4 is disconnected from the transmission assembly 5. After adding coffee beans into the grinder body 1, the drive assembly 4 is connected to the transmission assembly 5. The handle 42 is rotated, and the upper cover 41 drives the second grinding blade 3 to rotate relative to the first grinding blade 2 through the first transmission part 51 and the second transmission part 52 to achieve grinding. The user can rotate the adjustment component 9 to adjust the grinding degree of the coffee beans. After grinding is completed, the powder container 15 is rotated to pour out the coffee powder.

[0085] This invention is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this invention. However, regardless of any changes made in their shape or structure, any technical solution that falls within the scope of the claims of this invention shall be protected by this invention.

Claims

1. A large capacity coffee grinder characterized by, include: The grinding machine body is provided with a first grinding blade and a second grinding blade. A grinding gap is formed between the second grinding blade and the first grinding blade. The second grinding blade is rotatably disposed in the grinding machine body and the first grinding blade and the second grinding blade rotate relative to each other when rotating. A drive assembly, the drive assembly being disposed on the grinding machine body; and, A transmission assembly is located between the second grinding blade and the drive assembly. The drive assembly drives the second grinding blade to rotate relative to the first grinding blade through the transmission assembly. The transmission assembly forms a bean hopper.

2. A large capacity coffee grinder as claimed in claim 1, wherein, The second sharpening tool is ring-shaped, and the first sharpening tool is located inside the second sharpening tool. The first sharpening tool is a cone-shaped tool whose diameter gradually increases from top to bottom.

3. A large capacity coffee grinder as claimed in claim 2, wherein, The transmission assembly includes; The first transmission unit is rotatably mounted on the grinding machine body; The second transmission unit is located between the second grinding blade and the first transmission unit. The second transmission unit is rotatably disposed in the grinding machine body. The drive assembly drives the second transmission unit through the first transmission unit to make the second grinding blade rotate relative to the first grinding blade.

4. A large capacity coffee grinder as claimed in claim 3, wherein, The grinding machine body has an opening on its upper side, and the first transmission part covers the opening and can rotate relative to the grinding machine body.

5. A large capacity coffee grinder as defined in claim 3, wherein, The grinding machine body includes a cylindrical shell that runs vertically through the inside, and the second transmission unit is arranged around the inner wall of the grinding machine body.

6. A large capacity coffee grinder as claimed in claim 5, wherein, The second transmission part is cylindrical and has a bean hopper inside.

7. A large capacity coffee grinder as defined in claim 5, wherein A bearing is provided between the second transmission unit and the inner wall of the grinding machine body.

8. A large capacity coffee grinder as claimed in claim 7, wherein, The second transmission unit includes an upper cylinder and a lower cylinder. The lower end of the upper cylinder is connected to the upper end of the lower cylinder by a thread. An inwardly recessed annular bearing mounting part is provided on the outer wall of the lower end of the upper cylinder or the outer wall of the upper end of the lower cylinder. The bearing is sleeved on the bearing mounting part.

9. A large capacity coffee grinder as defined in claim 8, wherein, The inner wall of the cylindrical shell is provided with a bearing step, which abuts against the upper end of the bearing.

10. A large capacity coffee grinder as defined in claim 5, wherein, The lower side of the second transmission part covers the second grinding tool, and the first transmission part covers the upper side of the second transmission part.

11. A large capacity coffee grinder as defined in claim 10, wherein, The upper sides of the first transmission part and the second transmission part are connected by threads.

12. A large capacity coffee grinder as defined in claim 5, wherein, The second grinding tool is inserted into the lower end of the second transmission part and fixedly sealed.

13. A large capacity coffee grinder as defined in claim 1, wherein, The drive assembly includes an upper cover and a handle connected to the upper cover; the transmission assembly includes a feed inlet communicating with the bean hopper, and the upper cover is disposed at the feed inlet and detachably connected to the transmission assembly.

14. A large capacity coffee grinder as defined in claim 1, wherein, The grinding machine body also includes an adjustment component for adjusting the grinding gap between the first grinding blade and the second grinding blade.

15. A large capacity coffee grinder as defined in claim 14, wherein, The adjustment assembly includes a first adjustment part and a second adjustment part. The first adjustment part is movable up and down and is disposed in the grinding machine body. The first adjustment part is integrally formed and fixedly connected to the lower side of the first grinding blade or is fixedly connected separately. The second adjustment part is rotatably disposed on the grinding machine body and is threadedly connected to the first adjustment part. A rotating part is provided on the outer wall of the second adjustment part.

16. A large capacity coffee grinder as defined in claim 15, wherein, The first adjustment part includes an adjustment seat, on which at least two guide blocks are provided circumferentially. The grinding machine body is provided with guide grooves corresponding to the guide blocks, and the guide blocks are disposed in the guide grooves that can move up and down.

17. A large-capacity coffee grinder according to claim 16, characterized in that, The outer wall of the guide block is connected to the second adjustment part by threads.

18. A large-capacity coffee grinder according to claim 16, characterized in that, The adjustment seat has a tool holder in the middle, and the first grinding tool is detachably connected to the tool holder by a thread; The adjusting seat is ring-shaped and connected to the knife holder via a connecting part. A powder leakage channel is provided between the adjusting seat and the knife holder.

19. A large-capacity coffee grinder according to claim 18, characterized in that, The tool holder is provided with a polygonal positioning hole, and a positioning shaft is provided on the first grinding blade from top to bottom. The positioning shaft includes a stop block, a through section, a polygonal positioning section and a threaded section from top to bottom. The stop block is located at the top of the first grinding blade, the through section is located in the center hole of the first grinding blade, the polygonal positioning section is located in the polygonal positioning hole, and the threaded section fixes the tool holder and the first grinding blade together with a nut.

20. A large-capacity coffee grinder according to claim 16, characterized in that, The grinding machine body also includes a splicing section at the bottom, with several arc-shaped plates extending upward from the upper end of the splicing section. The guide groove is formed on two adjacent arc-shaped plates. The second adjustment part is sleeved on the splicing section from top to bottom, and the lower end of the second adjustment part abuts against the step of the splicing section.

21. A large-capacity coffee grinder according to claim 20, characterized in that, The second adjustment part is provided with a pressure ring on its upper side. The lower end of the pressure ring abuts against the upper end of the second adjustment part. The lower part of the pressure ring is threaded onto several arc-shaped plates, and the upper end of the pressure ring is threaded to the grinding machine body.

22. A large-capacity coffee grinder according to claim 20, characterized in that, The bottom end of the splicing section is connected to a powder hopper by means of threads or magnetic attraction.

Images