Coffee flour mill

Abstract

A coffee flour mill comprises a flour milling cup and a built-in flour milling shaft, the flour milling shaft is connected with a movable millstone, a fixed millstone is arranged around the movable millstone, a flour milling cavity is formed between the movable millstone and the fixed millstone, the periphery of the fixed millstone is sleeved with a lifting seat, and a sliding table distributed along a spiral line is arranged on the outer side of the lifting seat; the outer side of the lifting seat is sleeved with an adjusting seat, a spiral groove matched with the sliding table is formed in the inner wall of the adjusting seat, and when the adjusting seat is rotated, the sliding table moves along the spiral groove to drive the lifting seat and the fixed grinding disc to axially ascend and descend so as to adjust the gap of the grinding cavity. The coffee maker has the advantages that the thickness of coffee powder is adjusted, and the coffee maker is suitable for coffee beans with various tastes or coffee beans.

Description

Technical Field

[0001] This utility model relates to a grinder, specifically a coffee grinder. Background Technology

[0002] Coffee is a beverage made from roasted and ground coffee beans. As one of the world's three major beverages, it, along with cocoa and tea, is a staple drink worldwide. For ease of grinding, coffee is often used in homes or indoor settings. However, with rising demands for quality of life, people are no longer content with drinking coffee indoors and increasingly prefer to carry it with them for anytime, anywhere, leading to the development of coffee grinders. While coffee grinders offer convenience for outdoor coffee drinking, the wide variety of coffee beans available, and even the same type, can result in different flavor profiles depending on the drinker's preference. Current grinders typically have a fixed grind size, preventing adjustment. This means a single grinder can only produce a single grind size, resulting in limited versatility and potential bean waste. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a coffee grinder that is simple in structure, low in manufacturing cost, has adjustable coffee powder fineness, is easy and convenient to adjust, has high adjustment accuracy, is easy to disassemble and use, and has a stable and reliable connection.

[0004] The purpose of this utility model is achieved in the following way: a coffee grinder, including a grinding cup and a built-in grinding shaft, the grinding shaft is connected to a movable grinding disc, a fixed grinding disc is arranged around the movable grinding disc, and a grinding chamber is formed between the two. A lifting seat is fitted around the outer periphery of the fixed grinding disc, and a sliding table distributed along a spiral line is provided on the outer side of the lifting seat.

[0005] An adjustment seat is fitted on the outside of the lifting seat. The inner wall of the adjustment seat is provided with a spiral groove that cooperates with the sliding table. When the adjustment seat is rotated, the sliding table moves along the spiral groove, which drives the lifting seat and the fixed grinding disc to rise and fall axially to adjust the gap of the grinding chamber.

[0006] The grinding cup has a drive ring rotatably mounted on the outer circumference of its bottom, and the adjusting seat is fixed inside the drive ring.

[0007] The adjusting seat is equipped with a locking mechanism to lock the relative position of the drive ring and the grinding cup.

[0008] At least three sliding platforms are provided, evenly distributed along the same helical line.

[0009] The outer cylindrical surface of the fixed grinding disc has several annular grooves distributed axially. Correspondingly, the inner wall of the lifting seat protrudes to form a mounting seat, which is elastically fastened in the annular groove and can slide along the annular groove.

[0010] The bottom of the lifting seat has several positioning grooves, and the inner wall of the adjusting seat has corresponding protrusions forming insert plates. The insert plates are inserted and clipped into the positioning grooves to connect the lifting seat and the adjusting seat into one unit.

[0011] The adjusting seat has several connecting grooves recessed on its outer periphery, and the inner wall of the drive ring is provided with a connecting platform. The connecting platform is inserted into the connecting groove to connect the adjusting seat and the drive ring into one unit.

[0012] The locking mechanism includes a movable groove with an open bottom on the adjusting seat, and a locking ball is embedded in the movable groove. The movable groove and the locking ball are connected by a spring, and the locking ball can slide up and down along the movable groove.

[0013] The bottom plate of the grinding cup has several locking grooves recessed around its circumference. A spring generates a thrust, pushing the locking ball downwards. The locking ball is always locked in the locking groove, thus locking the drive ring.

[0014] The beneficial effects of this utility model are: 1. Simple structure, low manufacturing cost, and improved market competitiveness.

[0015] The grind size of the coffee powder can be adjusted to suit various tastes or coffee beans, making it highly versatile.

[0016] The adjustment is achieved through the interaction of the sliding table and the spiral groove. The adjustment operation is simple and precise, and the grinding chamber can be finely adjusted. The adjustment process is stable and reliable, ensuring that the fineness remains consistent.

[0017] A locking mechanism is installed to lock the position of the drive ring and the grinding cup, ensuring a stable and secure connection and guaranteeing the stability of the grinding process.

[0018] Each grinding component is an independent unit, avoiding the screw-based connection method used in traditional technology. This allows for independent cleaning and maintenance of the grinding cup, eliminating the need for tedious disassembly and cleaning processes and improving the ease of use of the coffee grinder. Attached Figure Description

[0019] Figure 1 This is a rendering of the final assembly of this utility model.

[0020] Figure 2 This is a cross-sectional view of the grinding mill in this utility model.

[0021] Figure 3 This is a schematic diagram of the internal structure of the grinding mill in this utility model.

[0022] Figure 4This is a structural assembly drawing of the drive ring, adjusting seat, and lifting seat in this utility model.

[0023] Figure 5 This is a structural assembly drawing of the locking mechanism in this utility model.

[0024] Figure 6 This is a structural assembly drawing of the movable grinding disc, fixed grinding disc, and lifting seat in this utility model. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings. A coffee grinder includes a grinding cup 1 and a built-in grinding shaft 2. The grinding shaft 2 is connected to a movable grinding disc 3. A fixed grinding disc 4 is arranged around the movable grinding disc 3, forming a grinding chamber between the two. A lifting seat 5 is fitted around the outer periphery of the fixed grinding disc 4. A sliding table 51 distributed along a spiral line is provided on the outer side of the lifting seat 5.

[0026] The lifting seat 5 is fitted with an adjustment seat 6 on its outer side. The inner wall of the adjustment seat 6 is provided with a spiral groove 61 that cooperates with the sliding table 51. When the adjustment seat 6 is rotated, the sliding table 51 moves along the spiral groove 61, driving the lifting seat 5 and the fixed grinding disc 4 to rise and fall axially to adjust the gap of the grinding chamber.

[0027] The grinding cup 1 is rotatably mounted on the outer circumference of its bottom, and the adjusting seat 6 is fixed inside the driving ring 7.

[0028] The adjusting seat 6 is equipped with a locking mechanism for locking the relative position of the drive ring 7 and the grinding cup 1.

[0029] At least three sliding stages 51 are provided, evenly distributed along the same spiral line.

[0030] The outer cylindrical surface of the fixed grinding disc 4 has a plurality of annular grooves 41 distributed axially. Correspondingly, the inner wall of the lifting seat 5 has a protruding mounting seat 52. The mounting seat 52 is elastically fastened in the annular groove 41 and can slide along the annular groove 41.

[0031] The bottom of the lifting seat 5 is provided with several positioning grooves 53, and the inner wall of the adjusting seat 6 is provided with corresponding protrusions forming an insert plate 62. The insert plate 62 is inserted and clipped into the positioning grooves 53, connecting the lifting seat 5 and the adjusting seat 6 into one unit.

[0032] The adjusting seat 6 has a plurality of connecting grooves 63 recessed on its outer periphery. The inner wall of the driving ring 7 is provided with a connecting platform 71, which is fitted into the connecting grooves 63 to connect the adjusting seat 6 and the driving ring 7 into one unit.

[0033] The locking mechanism includes a movable groove 81 with an open bottom on the adjusting seat 6. A locking ball 8 is embedded in the movable groove 81. The movable groove 81 and the locking ball 8 are connected by a spring 82. The locking ball 8 can slide up and down along the movable groove 81.

[0034] The bottom plate 11 of the grinding cup 1 has a plurality of locking grooves 83 recessed around its circumference. The spring 82 generates a thrust, pushing the locking ball 8 downward. The locking ball 8 is always locked in the locking groove 83, locking the drive ring 7.

[0035] Working principle: In a coffee grinder, a lifting seat is fitted around the outer periphery of the fixed grinding disc, and sliding platforms are arranged along a spiral line on the outer cylindrical surface of the lifting seat. An adjusting seat is fitted around the outer periphery of the lifting seat, corresponding to the sliding platforms. A spiral groove is provided on the inner wall of the adjusting seat, and the sliding platforms are connected and installed within the spiral groove.

[0036] The adjustment seat is connected to the drive ring via a recessed connecting groove on its outer periphery. The drive ring can rotate on its own. When the user needs to adjust the coarseness of the coffee powder, the rotation of the drive ring drives the adjustment seat to rotate, causing the sliding table to rotate along the spiral groove. This converts the rotational motion of the adjustment seat into the linear motion of the lifting seat. The lifting seat then drives the fixed grinding disc to rise and fall axially, thereby adjusting the gap between the grinding chambers of the fixed and movable grinding discs and achieving the adjustment of the coarseness of the coffee powder.

[0037] Thanks to the interplay between the spiral groove and the sliding table, the relative distance between the grinding chambers can be precisely adjusted, allowing for more accurate determination of the grind size. This avoids the limitations of traditional grinders, enabling the same grinder to produce a variety of coffee flavors. The combination of the spiral groove and the sliding table also prevents inconsistent grind size adjustments, providing clear settings and feedback, allowing users to better adjust the grind size according to their needs.

[0038] To lock the adjusted grind size, a locking mechanism is incorporated into the adjustment base to maintain the relative position between the drive ring and the grinding cup. This locking mechanism includes a movable groove at the bottom of the adjustment base and a locking groove recessed around the bottom of the grinding cup. A locking ball is installed within the movable groove, its top connected to the groove via a spring. When the drive ring begins to rotate, the locking ball slides upwards along the groove until it is fully seated within it, compressing the spring and allowing the drive ring to rotate easily. When the drive ring stops rotating after adjustment, the compressed spring force pushes the locking ball downwards, locking it in the locking groove and preventing further rotation, thus locking the drive ring in place. This locking mechanism ensures a more secure and stable connection between the adjustment base and the grinding cup, preventing displacement due to vibrations or improper operation during use, maintaining consistent grind size, and ensuring stable and reliable operation throughout the grinding process.

[0039] All grinding components are independent units, avoiding the screw-based connection method used in traditional methods. This not only ensures the integrity of the components but also allows for disassembly and reassembly of the grinding cup. Users can independently clean and maintain the grinding cup, effectively avoiding the tedious disassembly and cleaning process. After cleaning and reassembly, there is no need to readjust the grind size, greatly improving the ease of use of the coffee grinder and thus making it suitable for widespread adoption.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. 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 to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A coffee grinder, comprising a grinding cup (1) and a built-in grinding shaft (2), the grinding shaft (2) being connected to a movable grinding disc (3), and a fixed grinding disc (4) being arranged around the movable grinding disc (3), forming a grinding chamber between the two, characterized in that: The fixed grinding disc (4) is fitted with a lifting seat (5) on its outer periphery, and a sliding table (51) distributed along a spiral line is provided on the outer side of the lifting seat (5). The lifting seat (5) is fitted with an adjustment seat (6) on the outside. The inner wall of the adjustment seat (6) is provided with a spiral groove (61) that cooperates with the sliding table (51). When the adjustment seat (6) is rotated, the sliding table (51) moves along the spiral groove (61), which drives the lifting seat (5) and the fixed grinding disc (4) to rise and fall axially to adjust the gap of the grinding chamber. The grinding cup (1) has a drive ring (7) mounted on the outer circumference of its bottom, and the adjusting seat (6) is fixed inside the drive ring (7). The adjusting seat (6) is provided with a locking mechanism for locking the relative position of the drive ring (7) and the grinding cup (1).

2. The coffee grinder according to claim 1, characterized in that: The sliding platform (51) is provided in at least three parts, which are evenly distributed on the same spiral line.

3. A coffee grinder according to claim 1, characterized in that: The outer cylindrical surface of the fixed grinding disc (4) is axially distributed with several annular grooves (41). Correspondingly, the inner wall of the lifting seat (5) is formed with a mounting seat (52). The mounting seat (52) is elastically fastened in the annular groove (41) and can slide along the annular groove (41).

4. A coffee grinder according to claim 1, characterized in that: The bottom of the lifting seat (5) is provided with several positioning grooves (53), and the inner wall of the adjusting seat (6) is provided with a corresponding protrusion forming a plate (62). The plate (62) is inserted and placed in the positioning groove (53) to connect the lifting seat (5) and the adjusting seat (6) into one unit.

5. A coffee grinder according to claim 1, characterized in that: The adjusting seat (6) has a plurality of connecting grooves (63) recessed on its outer periphery. The inner wall of the driving ring (7) is provided with a connecting platform (71). The connecting platform (71) is inserted into the connecting groove (63) to connect the adjusting seat (6) and the driving ring (7) into one unit.

6. A coffee grinder according to claim 1, characterized in that: The locking mechanism includes a movable groove (81) with an open bottom of the adjusting seat (6), and a locking ball (8) is embedded in the movable groove (81). The movable groove (81) and the locking ball (8) are connected by a spring (82), and the locking ball (8) can slide up and down along the movable groove (81).

7. A coffee grinder according to claim 1, characterized in that: The bottom plate (11) of the grinding cup (1) is provided with several locking grooves (83) in a circumferential recess. The spring (82) generates a thrust to push the locking ball (8) downward. The locking ball (8) is always locked in the locking groove (83) to lock the drive ring (7).

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