A coffee bean grinding device

Abstract

This utility model relates to the technical field of grinding devices, specifically a coffee bean grinding device. The utility model includes a grinding cylinder and a collecting cylinder, which are threadedly connected. A mounting bracket is fixedly connected to the inner wall of the grinding cylinder. A rotating shaft, rotatably connected via a bearing, is located at the upper end of the mounting bracket. A rotating handle is fixedly connected to the arc surface of the rotating shaft. An auxiliary grinding component is provided on the inner wall of the grinding cylinder. A rotating blade holder is located at the lower end of the rotating shaft. A fixed blade holder is fixedly connected to the inner wall of the grinding cylinder. By providing the auxiliary grinding component, when coffee bean grinding is needed, the worker pours in the coffee beans and manually rotates the rotating handle to rotate the shaft, causing the third blade to rotate. This, in conjunction with the first and second blades, coarsely shreds the coffee beans. The shredded coffee beans then more easily enter between the rotating blade holder and the fixed blade holder, thus maximizing the grinding of the coffee beans.

Description

Technical Field

[0001] This utility model relates to the field of grinding device technology, and in particular to a coffee bean grinding device. Background Technology

[0002] The grinding device is used to grind coffee beans into powder. The grinding device consists of a grinding cylinder, a collecting cylinder, a mounting frame, a rotating shaft, a rotating handle, a rotating blade holder, and a fixed blade holder. When using the grinding device, the worker pours coffee beans into the grinding cylinder, then rotates the rotating handle to make the rotating shaft on the mounting frame rotate, which in turn makes the rotating blade holder rotate, thus cooperating with the fixed blade holder to grind the coffee beans, so that the ground coffee beans fall into the collecting cylinder.

[0003] The inventor discovered in daily work that when the grinding device is in use, the coffee beans are ground by a rotating blade and a fixed blade. However, the coffee beans are ground as whole beans, making it difficult for them to enter between the rotating and fixed blades, which may make it difficult for the rotating and fixed blades to grind the coffee beans. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in actual use, when grinding coffee beans, the coffee beans are ground as a whole unit, making it difficult for them to enter between the rotating and fixed blades, thus making it difficult for the rotating and fixed blades to grind the coffee beans. Therefore, this invention provides a coffee bean grinding device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a coffee bean grinding device, comprising a grinding cylinder and a collecting cylinder, wherein the grinding cylinder and the collecting cylinder are threadedly connected, a mounting bracket is fixedly connected to the inner wall of the grinding cylinder, a rotating shaft is rotatably connected to the upper end of the mounting bracket by means of a bearing, a rotating handle is fixedly connected to the arc surface of the rotating shaft, an auxiliary grinding assembly is provided on the inner wall of the grinding cylinder, a rotating blade holder is provided at the lower end of the rotating shaft, a fixed blade holder is fixedly connected to the inner wall of the grinding cylinder, the auxiliary grinding assembly includes a first blade and a second blade fixedly connected to the inner wall of the grinding cylinder, a third blade is provided between the first blade and the second blade, and the third blade is fixedly connected to the rotating shaft.

[0006] The effect achieved by the above components is as follows: by setting up auxiliary grinding components, when it is necessary to assist in grinding coffee beans, after the worker pours in the coffee beans, he manually rotates the handle to make the shaft rotate, which in turn makes the third blade rotate. This, in conjunction with the first and second blades, coarsely chops the coffee beans. The chopped coffee beans then more easily enter between the rotating blade holder and the fixed blade holder, thereby achieving the effect of grinding coffee beans as easily as possible.

[0007] Preferably, a screen is fixedly connected to the inner wall of the grinding cylinder, and the rotating shaft passes through the screen.

[0008] The effect achieved by the above components is that, by setting up a sieve, the coffee beans chopped by the first, second, and third blades fall through the sieve mesh.

[0009] Preferably, the lower end of the screen is provided with an installation rod, the upper end of the installation rod is fixedly connected with bristles, the arc surface of the rotating shaft is fixedly connected with a fixing rod, and the bristles pass through the fixing rod.

[0010] The effect achieved by the above components is that when the shaft rotates, the fixed rod rotates, which in turn causes the mounting rod to rotate, thereby causing the brush bristles to push out the coffee bean particles stuck in the screen.

[0011] Preferably, a first spring is fixedly connected to the upper end of the mounting rod, and the other end of the first spring is fixed to the fixing rod.

[0012] The effect achieved by the above components is as follows: by setting the first spring, when the brush bristles come into contact with the screen, the first spring is stretched, and the reverse force of the first spring pulls the mounting rod, thereby making the brush bristles fully contact the screen.

[0013] Preferably, a fixing component is provided between the rotating shaft and the rotating tool holder, the fixing component being used to fix the rotating tool holder to the rotating shaft.

[0014] The effect achieved by the above components is to fix the rotating tool holder to the rotating shaft by setting the fixing component.

[0015] Preferably, the fixing component includes a locking block that is slidably inserted into the arc surface of the rotating shaft, the locking block being inserted into the rotating tool holder.

[0016] The effect achieved by the above components is as follows: dragging the rotating tool holder to insert it into the rotating shaft, and then using the pushing mechanism to push the locking block into the rotating tool holder, thereby fixing the rotating tool holder to the rotating shaft.

[0017] Preferably, a push block is slidably inserted into the upper end of the rotary tool holder, the push block is inserted into the rotating shaft, a push rod is fixedly connected to the right end of the locking block, a sliding surface is opened on the right end of the push rod, and a screw is rotatably connected to the lower end of the push block, the screw being threadedly connected to the rotary tool holder.

[0018] The effect achieved by the above components is as follows: tightening the screw causes the push block to move upward, and the push rod, with the aid of the sliding surface, causes the push block to push the push rod, thereby pushing the locking block into the rotating tool holder.

[0019] Preferably, a second spring is fixedly connected to the right end of the card block, and the other end of the second spring is fixed to the rotating shaft.

[0020] The effect achieved by the above components is as follows: by setting a second spring, after the push block is fully retracted into the rotating tool holder by turning the screw, the second spring resets, causing the locking block to retract into the rotating shaft, and then the rotating tool holder can be disassembled.

[0021] In summary, the beneficial effects of this utility model are as follows:

[0022] In this invention, by setting up an auxiliary grinding component, when coffee beans need to be ground, the worker pours in the coffee beans and manually rotates the handle to make the shaft rotate, causing the third blade to rotate. This, in conjunction with the first and second blades, coarsely shreds the coffee beans. The shredded coffee beans then more easily enter between the rotating and fixed blades, thus maximizing the grinding of the coffee beans. This solves the problem that when coffee beans are ground by the rotating and fixed blades, the coffee beans are still whole when being ground, making it difficult for them to enter between the rotating and fixed blades, which could make grinding difficult. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the explosion of this utility model;

[0024] Figure 2 This is a three-dimensional structural schematic diagram of the cross-section of the grinding cylinder of this utility model;

[0025] Figure 3 This is a three-dimensional structural schematic diagram of the cross-section of this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the cross-section of the fixing component of this utility model.

[0027] Legend: 1. Grinding cylinder; 2. Auxiliary grinding assembly; 3. Fixing assembly; 4. Collection cylinder; 5. Mounting bracket; 6. Rotating shaft; 7. Rotating handle; 8. Rotating blade holder; 9. Fixed blade holder; 21. Screen; 22. Third blade; 23. First blade; 24. Second blade; 25. Fixing rod; 26. Mounting rod; 27. Brush bristles; 28. First spring; 31. Locking block; 32. Push rod; 33. Second spring; 34. Sliding surface; 35. Push block; 36. Screw. Detailed Implementation

[0028] Reference Figure 1 and Figure 2 As shown, this utility model provides a technical solution: a coffee bean grinding device includes a grinding cylinder 1 and a collecting cylinder 4, the grinding cylinder 1 and the collecting cylinder 4 are threadedly connected, the inner wall of the grinding cylinder 1 is fixedly connected to a mounting bracket 5, the upper end of the mounting bracket 5 is provided with a rotating shaft 6 rotatably connected by a bearing, the arc surface of the rotating shaft 6 is fixedly connected to a rotating handle 7, the inner wall of the grinding cylinder 1 is provided with an auxiliary grinding component 2, the lower end of the rotating shaft 6 is provided with a rotating blade holder 8, and the inner wall of the grinding cylinder 1 is fixedly connected to a fixed blade holder 9.

[0029] Reference Figure 2 and Figure 3 As shown in this embodiment: the auxiliary grinding component 2 includes a first blade 23 and a second blade 24 fixedly connected to the inner wall of the grinding cylinder 1. A third blade 22 is disposed between the first blade 23 and the second blade 24. The third blade 22 is fixedly connected to the rotating shaft 6. By setting the auxiliary grinding component 2, when coffee beans need to be ground, after the worker pours in the coffee beans, he manually rotates the rotating handle 7 to make the rotating shaft 6 rotate, which in turn makes the third blade 22 rotate. This, in conjunction with the first blade 23 and the second blade 24, coarsely chops the coffee beans. The chopped coffee beans then more easily enter between the rotating blade holder 8 and the fixed blade holder 9, thereby maximizing the grinding of the coffee beans. A screen 21 is fixedly connected to the inner wall of the grinding cylinder 1, and the rotating shaft 6 passes through the screen 21. By setting the screen 21, the third blade 22 is ground through the first blade 23 and the second blade 24. The coffee beans chopped by the first blade 23, the second blade 24, and the third blade 22 fall through the mesh of the sieve 21. A mounting rod 26 is installed at the lower end of the sieve 21, and a brush bristle 27 is fixedly connected to the upper end of the mounting rod 26. A fixing rod 25 is fixedly connected to the arc surface of the rotating shaft 6. The brush bristle 27 passes through the fixing rod 25. When the rotating shaft 6 rotates, the fixing rod 25 rotates, causing the mounting rod 26 to rotate, thus allowing the brush bristle 27 to push out the coffee bean particles stuck in the sieve 21. A first spring 28 is fixedly connected to the upper end of the mounting rod 26, and the other end of the first spring 28 is fixed to the fixing rod 25. By setting the first spring 28, when the brush bristle 27 contacts the sieve 21, the first spring 28 is stretched, and its counterforce pulls the mounting rod 26, thus ensuring full contact between the brush bristle 27 and the sieve 21.

[0030] Reference Figure 3 and Figure 4As shown in this embodiment: a fixing component 3 is provided between the rotating shaft 6 and the rotating tool holder 8. The fixing component 3 is used to fix the rotating tool holder 8 to the rotating shaft 6. By setting the fixing component 3, the rotating tool holder 8 is fixed to the rotating shaft 6. The fixing component 3 includes a locking block 31 that is slidably inserted into the arc surface of the rotating shaft 6. The locking block 31 is inserted into the rotating tool holder 8. The rotating tool holder 8 is dragged so that it is inserted into the rotating shaft 6. Then, by a pushing mechanism, the locking block 31 is pushed into the rotating tool holder 8, thereby fixing the rotating tool holder 8 to the rotating shaft 6. A push block 35 is slidably inserted into the upper end of the rotating tool holder 8. The push block 35 is inserted into the rotating shaft 6. A push rod is fixedly connected to the right end of the locking block 31. 32. A sliding surface 34 is provided on the right end of the push rod 32. A screw 36 is rotatably connected to the lower end of the push block 35. The screw 36 is threadedly connected to the rotating tool holder 8. Tightening the screw 36 causes the push block 35 to move upward. With the help of the sliding surface 34, the push rod 32 is pushed by the push block 35, which pushes the push rod 32, causing the locking block 31 to be pushed into the rotating tool holder 8. A second spring 33 is fixedly connected to the right end of the locking block 31. The other end of the second spring 33 is fixed to the rotating shaft 6. By setting the second spring 33, after the push block 35 is completely retracted into the rotating tool holder 8 by tightening the screw 36, the second spring 33 resets, causing the locking block 31 to retract into the rotating shaft 6. Then the rotating tool holder 8 can be disassembled.

[0031] Working principle:

[0032] When using the grinding device, the worker pours coffee beans into the grinding cylinder 1, then rotates the handle 7, causing the shaft 6 on the mounting bracket 5 to rotate, which in turn rotates the rotating blade holder 8, thus cooperating with the fixed blade holder 9 to grind the coffee beans. The ground coffee beans fall into the collection cylinder 4. When additional grinding is needed, after pouring in the coffee beans, the worker manually rotates the handle 7, causing the shaft 6 to rotate, which in turn rotates the third blade 22, thus cooperating with the first blade 23 and the second blade 24 to coarsely chop the coffee beans. The chopped coffee beans then more easily enter between the rotating blade holder 8 and the fixed blade holder 9, thereby maximizing the grinding effect. A screen 21 is used, and the coffee beans chopped by the first blade 23, the second blade 24, and the third blade 22 fall through the mesh of the screen 21. Simultaneously, the rotation of the shaft 6 causes the fixed rod 25 to rotate, which in turn rotates the mounting rod 26, from... The brush bristles 27 push out coffee bean particles stuck in the screen 21. A first spring 28 is provided; when the brush bristles 27 contact the screen 21, the first spring 28 is stretched. The first spring 28's counterforce pulls the mounting rod 26, ensuring full contact between the brush bristles 27 and the screen 21. This drags the rotating blade holder 8, causing it to insert into the rotating shaft 6. Then, the screw 36 is tightened (for loose screw 36, this application can also use glue to adhere the threads; when removal is needed, the glue can be melted at high temperature and then tightened forcefully), causing the push block 35 to move upwards. The push rod 32, aided by the sliding surface 34, causes the push block 35 to push the push rod 32, pushing the locking block 31 into the rotating blade holder 8, thus fixing the rotating blade holder 8 to the rotating shaft 6. A second spring 33 is provided; after the push block 35 is fully retracted into the rotating blade holder 8 by tightening the screw 36, the second spring 33 resets, causing the locking block 31 to retract into the rotating shaft 6. Then, the rotating blade holder 8 can be disassembled.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A coffee bean grinding device, comprising a grinding cylinder (1) and a collecting cylinder (4), wherein the grinding cylinder (1) and the collecting cylinder (4) are threadedly connected, characterized in that: The inner wall of the grinding cylinder (1) is fixedly connected to a mounting bracket (5). The upper end of the mounting bracket (5) is provided with a rotating shaft (6) rotatably connected by a bearing. The arc surface of the rotating shaft (6) is fixedly connected to a rotating handle (7). The inner wall of the grinding cylinder (1) is provided with an auxiliary grinding assembly (2). The lower end of the rotating shaft (6) is provided with a rotating tool holder (8). The inner wall of the grinding cylinder (1) is fixedly connected with a fixed tool holder (9). The auxiliary grinding assembly (2) includes a first blade (23) and a second blade (24) fixedly connected to the inner wall of the grinding cylinder (1). A third blade (22) is provided between the first blade (23) and the second blade (24). The third blade (22) is fixedly connected to the rotating shaft (6).

2. The coffee bean grinding device according to claim 1, characterized in that: A screen (21) is fixedly connected to the inner wall of the grinding cylinder (1), and the rotating shaft (6) passes through the screen (21).

3. The coffee bean grinding device according to claim 2, characterized in that: The lower end of the screen (21) is provided with an installation rod (26), and the upper end of the installation rod (26) is fixedly connected with a brush (27). The arc surface of the rotating shaft (6) is fixedly connected with a fixing rod (25), and the brush (27) passes through the fixing rod (25).

4. The coffee bean grinding device according to claim 3, characterized in that: The upper end of the mounting rod (26) is fixedly connected to a first spring (28), and the other end of the first spring (28) is fixed to the fixing rod (25).

5. A coffee bean grinding device according to claim 4, characterized in that: A fixing component (3) is provided between the rotating shaft (6) and the rotating tool holder (8), the fixing component (3) being used to fix the rotating tool holder (8) to the rotating shaft (6).

6. A coffee bean grinding device according to claim 5, characterized in that: The fixing component (3) includes a locking block (31) that is slidably inserted into the arc surface of the rotating shaft (6), and the locking block (31) is inserted into the rotating tool holder (8).

7. A coffee bean grinding device according to claim 6, characterized in that: A push block (35) is slidably inserted into the upper end of the rotating tool holder (8). The push block (35) is inserted into the rotating shaft (6). A push rod (32) is fixedly connected to the right end of the locking block (31). A sliding surface (34) is opened on the right end of the push rod (32). A screw (36) is rotatably connected to the lower end of the push block (35). The screw (36) is threadedly connected to the rotating tool holder (8).

8. A coffee bean grinding device according to claim 7, characterized in that: The right end of the card block (31) is fixedly connected to a second spring (33), and the other end of the second spring (33) is fixed to the rotating shaft (6).

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