Grinder capable of preventing powder from caking

Abstract

A kind of grinder that can prevent powder agglomeration, including main machine, be provided with powder cavity on main machine, be provided with upper knife component and rotatable lower knife component in powder cavity, upper knife component and lower knife component are sequentially arranged from top to bottom, and be provided with grinding gap between upper knife component and lower knife component, main machine side is provided with powder outlet pipe that is communicated with grinding gap, the periphery of lower knife component is annularly provided with several powder sweeping columns, and the both sides of powder outlet pipe are respectively provided with blocking rib;When lower knife component drives powder sweeping column to rotate, powder sweeping column and blocking rib are mutually matched to alternately sweep powder.The grinder of the utility model by being provided with several powder sweeping columns on the periphery of lower knife component, and the both sides of powder outlet pipe are respectively provided with blocking rib;In this way, during grinding, lower knife component drives powder sweeping column to rotate, powder sweeping column and blocking rib are mutually matched, to alternately sweep powder, and break up powder particles, can break up the powder block agglomerated into block, reduce the trouble of agglomeration, to prevent powder outlet pipe from being blocked, so that powder outlet pipe is more smooth.

Description

Technical Field

[0001] This utility model relates to the field of coffee grinder technology, and in particular to a coffee grinder that can prevent coffee powder from clumping. Background Technology

[0002] Chinese Patent Document No. CN222622789U, published on March 18, 2025, discloses a coffee grinder with a quick-release dispensing tube. The grinder includes a housing, a first mounting groove on one side of the housing for mounting a dispensing component, and a second mounting groove on the top for mounting a grinding disc. The second mounting groove is connected to the dispensing component, which includes a connecting seat and a quick-release tube. The connecting seat has screw slots on both sides, connecting to the first mounting groove via these slots and screws. The connecting seat has two sections of slots with different diameters inside, with the larger diameter slot having an arc-shaped slide rail on its inner wall and mounting holes extending through both sides. The problem with this grinder's dispensing tube is that coffee powder tends to clump together, causing blockages.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this invention is to provide a coffee grinder that is simple in structure, prevents powder from clumping, ensures smooth powder output, is stable and reliable, and is highly practical, thereby overcoming the shortcomings of the prior art.

[0005] A coffee grinder designed for this purpose to prevent coffee powder from clumping includes a main unit, characterized in that: the main unit is provided with a powder chamber, and an upper blade assembly and a rotatable lower blade assembly are provided in the powder chamber, the upper blade assembly and the lower blade assembly are arranged sequentially above and below each other, and a grinding gap is provided between the upper blade assembly and the lower blade assembly; a powder outlet pipe communicating with the grinding gap is provided on one side of the main unit; a plurality of powder sweeping columns are arranged in a ring around the lower blade assembly, and baffles are provided on both sides of the powder outlet pipe; when the lower blade assembly drives the powder sweeping columns to rotate, the powder sweeping columns and the baffles cooperate with each other to sweep the powder alternately.

[0006] The powder-sweeping column includes a first powder-sweeping column and a second powder-sweeping column that are spaced apart from each other, with the length of the first powder-sweeping column being greater than the length of the second powder-sweeping column.

[0007] The number of the first and second powder-sweeping columns is the same, and there are at least 3 of them.

[0008] The powder outlet pipe has an inlet at one end, and the baffles include a first baffle and a second baffle respectively set on both sides of the inlet. The width of the first baffle is B1, and the width of the second baffle is B2, where B2 > B1.

[0009] The height of the first retaining rib is H1, and the height of the second retaining rib is H2, where H2 > H1.

[0010] The first baffle is provided with a first blocking surface, and the second baffle is provided with a second blocking surface. The distance between the first blocking surface and the length center line C1 of the inlet is A1, and the distance between the second blocking surface and the length center line C1 of the inlet is A2, where A1 < A2.

[0011] The first baffle is provided with a third blocking surface, and the second baffle is provided with a fourth blocking surface. The third blocking surface is located above the width center line C2 of the inlet, and the fourth blocking surface is located on the width center line C2 of the inlet.

[0012] The lower blade assembly and the powder outlet pipe inlet are positioned close to each other.

[0013] The main unit is equipped with a motor, whose output shaft extends into the powder chamber and is connected to the lower blade assembly.

[0014] An elastic component is provided between the powder chamber and the upper blade assembly. An adjusting wheel is provided on the top of the powder chamber for vertical adjustment. The upper blade assembly abuts against the adjusting wheel under the elastic force of the elastic component. When the adjusting wheel is adjusted up and down, it drives the upper blade assembly to move up and down to adjust the grinding gap between the upper blade assembly and the lower blade assembly.

[0015] This utility model of a coffee grinder features several powder-sweeping columns arranged in a ring around the periphery of the lower blade assembly, with baffles on both sides of the powder outlet pipe. During the grinding process, the lower blade assembly drives the powder-sweeping columns to rotate, and the columns and baffles work together to alternately sweep and break up the powder particles. This breaks up clumps of powder, reducing clumping and preventing blockage of the powder outlet pipe. This results in smoother powder output and a better user experience. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of a coffee grinder in one embodiment of the present invention.

[0017] Figure 2 This is an exploded structural diagram of a coffee grinder in one embodiment of the present invention.

[0018] Figure 3 This is a partial structural diagram of a coffee grinder in one embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the overall structure of the lower blade assembly in one embodiment of the present invention.

[0020] Figure 5 This is an exploded view of the adjusting wheel in one embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the overall structure of the powder outlet pipe in one embodiment of the present invention.

[0022] Figure 7This is a schematic diagram of the overall structure of the powder outlet pipe from another position in one embodiment of the present invention.

[0023] Figure 8 This is a top view of the powder outlet pipe in one embodiment of the present invention.

[0024] Figure 9 This is a schematic diagram of the overall structure of the third position of the powder outlet tube in one embodiment of the present invention.

[0025] Figure 10 This is a cross-sectional view of the powder outlet pipe in one embodiment of the present invention.

[0026] Figure 11 for Figure 1 A magnified structural diagram of point A in the middle. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] See Figures 1-11 This coffee grinder, designed to prevent coffee powder from clumping, includes a main unit 1. The main unit 1 has a powder chamber 2, within which is an upper blade assembly 3 and a rotatable lower blade assembly 4. The upper blade assembly 3 and the lower blade assembly 4 are arranged vertically, with a grinding gap between them. A powder outlet pipe 5, communicating with the grinding gap, is located on one side of the main unit 1. Several powder-sweeping columns are arranged in a ring around the lower blade assembly 4, and baffles are provided on both sides of the powder outlet pipe 5. When the coffee grinder grinds coffee, the lower blade assembly 4 drives the powder-sweeping columns to rotate. The powder-sweeping columns and baffles work together to alternately sweep the powder, breaking up any clumps and reducing the problem of clumping.

[0029] The powder-sweeping column includes a first powder-sweeping column 6 and a second powder-sweeping column 7 that are spaced apart from each other. The length of the first powder-sweeping column 6 is greater than the length of the second powder-sweeping column 7. The alternating lengths of the first powder-sweeping column 6 and the second powder-sweeping column 7 ensure more thorough powder sweeping and prevent the formation of powder-sweeping dead corners.

[0030] The number of the first powder-sweeping column 6 and the second powder-sweeping column 7 is the same and at least 3. In this embodiment, the first powder-sweeping column 6 and the second powder-sweeping column 7 are each provided with 3.

[0031] The powder outlet pipe 5 is provided with an inlet 8 at the upper end. The baffles include a first baffle 9 and a second baffle 10 respectively provided on both sides of the inlet 8. The width of the first baffle 9 is B1, and the width of the second baffle 10 is B2, B2>B1. Since the width of the first baffle 9 is smaller, some powder particles leave the powder outlet pipe from the wider part of the first baffle 9. Since the width of the second baffle 10 is larger, more other powder particles will collide with the second baffle 10, causing these powder particles to be broken.

[0032] The height of the first baffle 9 is H1, and the height of the second baffle 10 is H2, where H2 > H1. The smaller height of the first baffle 9 reduces its obstruction of powder particles, making powder discharge smoother. The larger height of the second baffle 10 breaks up more powder particles, preventing powder blockage.

[0033] The first baffle 9 is provided with a first blocking surface 11, and the second baffle 10 is provided with a second blocking surface 12. The first blocking surface 9 and the second blocking surface 10 are arranged parallel to each other. The distance between the first blocking surface 11 and the length center line C1 of the inlet 8 is A1, and the distance between the second blocking surface 12 and the length center line C1 of the inlet 8 is A2. A1 < A2, to prevent the powder particles from flowing out in one direction.

[0034] The first baffle 9 is provided with a third blocking surface 13, and the second baffle 10 is provided with a fourth blocking surface 14. The third blocking surface 13 is located above the width center line C2 of the inlet 8, and the fourth blocking surface 14 is located on the width center line C2 of the inlet 8.

[0035] When the powder particles reach the inlet 8, some of them will pass directly through the inlet 8 and then reach the powder outlet channel 18, while other powder particles will collide with the first blocking surface 11, the second blocking surface 12, the third blocking surface 13, or the fourth blocking surface 14, causing the powder particles to be broken up, especially those that have formed clumps. In addition, due to the large width and height of the second baffle 10, most of the powder particles will collide with the second blocking surface 12 or the fourth blocking surface 14.

[0036] The inlet 8 is tilted vertically to facilitate the vertical installation of the powder outlet pipe 5. The first baffle 9 and the second baffle 10 are located at the upper end of the inlet 8.

[0037] The inlet 8 is located at the upper end of the powder outlet pipe 5, and the lower end of the powder outlet pipe 5 is provided with an outlet 19. The powder outlet channel 20 is provided inside the pipe body 1. The inlet 8, the powder outlet channel 20 and the outlet 19 are connected in sequence. The inlet 8 connects to the grinding gap. After the upper blade assembly 3 and the lower blade assembly 4 work together to grind the coffee beans into powder, the powder in the grinding gap falls down into the powder outlet channel 20 through the inlet 8, and then leaves the grinder through the outlet 19 and falls into the receiving container.

[0038] The lower blade assembly 4 and the inlet 8 of the powder outlet pipe 5 are positioned close to each other, so that the powder sweeping column and the baffle can work together to sweep and break up the powder particles.

[0039] The main unit 1 is equipped with a motor 15. The output shaft 16 of the motor 15 extends into the powder chamber 2 through the hole at the bottom of the powder chamber 2 and is connected to the lower blade assembly 4. The motor 15 drives the lower blade assembly 4 to rotate.

[0040] An elastic component is provided between the powder chamber 2 and the upper blade assembly 3. An adjusting wheel 17 is provided on the top of the powder chamber 2 for vertical adjustment. The upper blade assembly 3 abuts against the adjusting wheel 17 under the elastic force of the elastic component. When the adjusting wheel 17 is adjusted up and down, it drives the upper blade assembly 3 to move up and down to adjust the grinding gap between the upper blade assembly 3 and the lower blade assembly 4, thereby adjusting the coarseness of the powder particles.

[0041] The adjusting wheel 17 is provided with a first threaded part 21, and the powder cavity 2 is provided with a second threaded part 22. When the adjusting wheel 17 rotates, it adjusts up and down on the powder cavity 2 through the cooperation of the first threaded part 21 and the second threaded part 22.

[0042] An adjusting plate 23 is fitted at the bottom of the adjusting wheel 17. The first threaded part 21 is located on the outer periphery of the adjusting plate 23 and is an external thread. The second threaded part 22 is located on the inner side wall of the powder cavity 2 and is an internal thread.

[0043] The upper blade assembly 3 includes an upper blade disc 24 and an upper blade holder 25 sleeved on the upper blade disc 24. The upper blade holder 25 is provided with an abutment part 26. Under the elastic force of the elastic component, the upper blade holder 25 abuts upward against the adjusting plate 23 through the abutment part 26.

[0044] A handle 26 for rotating the adjusting wheel 17 is provided on one side of the adjusting wheel 17. The adjusting wheel 17 can be manually rotated (twisted) by the handle 26 to move the adjusting wheel 17 up and down.

[0045] The adjustment wheel 17 is surrounded by a ring-shaped scale 27, and the main unit 1 (top cover) is provided with a triangular symbol mark 28 for aligning with the scale 27.

[0046] The powder cavity 2 has several mounting holes 29 arranged in a ring around its periphery for installing elastic components. The elastic components include a ejector pin 30, an elastic element 31, and a fastening element 32. The elastic element 31 is a spring, and the fastening element 32 is a screw. The upper tool holder 25 has several lugs 33 arranged in a ring around its periphery. The fastening element 32 is fastened to the mounting holes 29. The mounting holes 29 are threaded holes. The upper end of the ejector pin 30 abuts against the lugs 33. The elastic element 31 is located between the lower end of the ejector pin 30 and the fastening element 32. Under the elastic force of the elastic element 31, the ejector pin 30 pushes upward against the lugs 33 so that the upper tool assembly 3 abuts against the adjusting wheel 17. The ejector pin 30 is movably mounted on the mounting holes 29.

[0047] The periphery of the powder cavity 2 is provided with several slots 34, and the lugs 33 are inserted into the slots 34.

[0048] The main unit 1 includes a body 35 and an upper cover 36 that covers the top of the body 35. The motor 15 is located inside the body 35. The adjusting wheel 17 is located on the powder chamber 2 and the top of the upper cover 36, and the adjusting wheel 17 is sleeved on the upper blade holder 25. The bottom of the upper cover 36 is provided with screw holes. The fastening element 32 passes through the screw holes and is fastened to the mounting hole 29 so that the powder chamber 2 is fixed on the upper cover 36. The powder chamber 2 is located on the end face of the motor 15.

[0049] The lowering tool assembly 4 includes a lowering tool holder 37 and a lowering tool disc 38 sleeved on the lowering tool holder 37. The output shaft 16 of the motor 15 is connected to the lowering tool holder 37. A grinding gap is provided between the upper tool disc 24 and the lower tool disc 38.

[0050] The main unit 1 has a bean box assembly 39 on its top. The bean box assembly 39 is connected to the adjusting wheel 17 and is connected to the inside of the powder chamber 2.

[0051] When the adjusting wheel 17 is adjusted upward, the elastic element 31 pushes the ejector pin 30 upward, so that the ejector pin 30 pushes the upper cutting assembly 3 upward, and the upper cutting assembly 3 moves upward to increase the grinding gap between the upper cutting assembly 3 and the lower cutting assembly 4. When the adjusting wheel 17 is adjusted downward, the adjusting wheel 17 presses the upper cutting assembly 3 downward, the upper cutting assembly 3 moves downward, and pushes the ejector pin 30 downward. The elastic element 31 is compressed to reduce the grinding gap between the upper cutting assembly 3 and the lower cutting assembly 4.

[0052] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A coffee grinder that prevents coffee powder from clumping, comprising a main unit (1), characterized in that: The main unit (1) is provided with a powder chamber (2), and an upper blade assembly (3) and a rotatable lower blade assembly (4) are provided inside the powder chamber (2). The upper blade assembly (3) and the lower blade assembly (4) are arranged in sequence, and a grinding gap is provided between the upper blade assembly (3) and the lower blade assembly (4). A powder outlet pipe (5) communicating with the grinding gap is provided on one side of the main unit (1). Several powder sweeping columns are arranged in a ring around the lower blade assembly (4). Baffles are provided on both sides of the powder outlet pipe (5). When the lower blade assembly (4) drives the powder sweeping columns to rotate, the powder sweeping columns and the baffles cooperate with each other to sweep powder alternately.

2. The coffee grinder according to claim 1 that prevents coffee powder from clumping, characterized in that: The powder-sweeping column includes a first powder-sweeping column (6) and a second powder-sweeping column (7) that are spaced apart from each other. The length of the first powder-sweeping column (6) is greater than the length of the second powder-sweeping column (7).

3. The coffee grinder according to claim 2 that prevents coffee powder from clumping, characterized in that: The number of the first powder-sweeping column (6) and the second powder-sweeping column (7) are the same, and there are at least 3 of them.

4. The coffee grinder according to claim 1 that prevents coffee powder from clumping, characterized in that: The powder outlet pipe (5) has an inlet (8) at one end. The baffles include a first baffle (9) and a second baffle (10) respectively set on both sides of the inlet (8). The width of the first baffle (9) is B1, and the width of the second baffle (10) is B2, where B2 > B1.

5. The coffee grinder according to claim 4 that prevents coffee powder from clumping, characterized in that: The height of the first retaining rib (9) is H1, and the height of the second retaining rib (10) is H2, where H2 > H1.

6. The coffee grinder according to claim 4 that prevents coffee powder from clumping, characterized in that: The first baffle (9) is provided with a first blocking surface (11), and the second baffle (10) is provided with a second blocking surface (12). The distance between the first blocking surface (11) and the length center line C1 of the inlet (8) is A1, and the distance between the second blocking surface (12) and the length center line C1 of the inlet (8) is A2, where A1 < A2.

7. The coffee grinder according to claim 4 that prevents coffee powder from clumping, characterized in that: The first baffle (9) is provided with a third blocking surface (13), and the second baffle (10) is provided with a fourth blocking surface (14). The third blocking surface (13) is located above the width center line C2 of the inlet (8), and the fourth blocking surface (14) is located on the width center line C2 of the inlet (8).

8. The coffee grinder according to claim 4 that prevents coffee powder from clumping, characterized in that: The lower blade assembly (4) and the inlet (8) of the powder outlet pipe (5) are positioned close to each other.

9. The coffee grinder according to claim 1 that prevents coffee powder from clumping, characterized in that: The main unit (1) is equipped with a motor (15), and the output shaft (16) of the motor (15) extends into the powder chamber (2) and is connected to the lower blade assembly (4).

10. The coffee grinder according to claim 1 that prevents coffee powder from clumping, characterized in that: An elastic component is provided between the powder cavity (2) and the upper blade assembly (3). An adjusting wheel (17) is provided on the top of the powder cavity (2) for vertical adjustment. The upper blade assembly (3) abuts against the adjusting wheel (17) under the elastic force of the elastic component. When the adjusting wheel (17) is adjusted up and down, it drives the upper blade assembly (3) to move up and down to adjust the grinding gap between the upper blade assembly (3) and the lower blade assembly (4).

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