Mechanism for vertically adjusting thickness of ground beans on front side and coffee bean grinder adopting mechanism

Abstract

The utility model discloses a right side vertical adjustment bean grinding thickness mechanism and a coffee bean grinder using the same, which comprises a bean grinding cutter head, a grinding disc matched with the bean grinding cutter head for grinding, a vertical adjusting knob and an adjusting disc, the inner end of the vertical adjusting knob is provided with a vertical conical fluted disc, the adjusting disc is sleeved on the periphery of the grinding disc, and the grinding disc is provided with a vertical conical fluted disc. Grinding disc outer adjusting teeth are arranged on the peripheral surface of the grinding disc, the adjusting disc is provided with annular disc-shaped outer adjusting teeth and internal thread adjusting teeth, the grinding disc outer adjusting teeth are meshed with the internal thread adjusting teeth of the adjusting disc, and the rotating disc-shaped adjusting teeth are meshed with a vertical conical fluted disc of the vertical adjusting knob. The vertical adjusting knob rotates to drive the meshed adjusting disc to rotate, the adjusting disc rotates to drive the grinding disc to move up and down by driving the grinding disc outer adjusting teeth, the grinding gap change between the grinding disc and the bean grinding tool bit is adjusted, the grinding thickness adjusting operation is more convenient, and the adjusting efficiency is high; and a front vertical adjustment mode with intuitive adjustment operation is provided.

Description

Technical Field

[0001] This utility model relates to a coffee grinder, and more particularly to a coffee grinder used to adjust the grind size of coffee beans. Background Technology

[0002] As people's living standards improve and their pursuit of quality increases, coupled with concerns about the hygiene, safety, and health of commercially available powdered food products, people are increasingly inclined to grind their own coffee, bean powder, and other healthy foods. Grinding coffee beans, bean products, or other food products into powder for brewing or consumption requires the use of a coffee grinder (or similar product name). While a coffee grinder can achieve the desired powdering effect, different consumer groups have different preferences for powder coarseness, leading to a need for adjusting the grind to different levels of coarseness. However, existing methods for adjusting grind size in coffee grinders are inconvenient: changing the grinding blades is cumbersome; internal adjustment components are difficult for consumers to control; and rotating a knob horizontally also presents inconvenience.

[0003] Patent No. ZL202323420320.6, published on November 1, 2024, discloses a coffee grinder structure with externally adjustable grind size. The structure includes a grinding chamber, a chamber lid, and a grinding disc. It also includes a grind size adjustment ring located below the bottom outer periphery of the chamber lid. The grinding size adjustment ring is connected to the bottom outer thread of the chamber lid via its internal thread. The grinding disc is fixedly located between the grinding chamber and the chamber lid. The grinding head is located inside the grinding disc, with its bottom end positioned above the center bottom end of the grind size adjustment ring. The grinding head moves up and down within the grinding chamber following the grind size adjustment ring, creating varying grinding gaps between itself and the grinding disc. This design allows for external adjustment of the grind size, featuring a simple adjustment structure, low product cost, and easy and flexible operation. However, this solution adjusts the grind size by rotating a knob horizontally, which is inconvenient and not intuitive. Utility Model Content

[0004] This utility model addresses the shortcomings of existing coffee grinders, which require horizontal rotation of an adjustment knob to adjust the grind size, resulting in inconvenience and a lack of intuitive operation. It provides a front-mounted vertical adjustment mechanism for grinding grinder coarseness that offers greater convenience, efficiency, and intuitive operation. The invention also includes a coffee grinder employing this mechanism.

[0005] The specific technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a front-mounted vertical adjustment mechanism for grinding bean coarseness, including a grinding head and a grinding disc that cooperates with the grinding head, characterized in that: it also includes a vertical adjustment knob and an adjustment disc. The inner end of the vertical adjustment knob has a vertical conical toothed disc. The adjustment disc is sleeved on the outer periphery of the grinding disc. The outer circumference of the grinding disc has external adjustment teeth. The adjustment disc has annular disc-shaped external adjustment teeth and internal thread adjustment teeth. The external adjustment teeth of the grinding disc mesh with the internal thread adjustment teeth of the adjustment disc, and the annular disc-shaped external adjustment teeth mesh with the vertical conical toothed disc of the vertical adjustment knob. Rotation of the vertical adjustment knob causes the meshing adjustment disc to rotate accordingly. The rotation of the adjustment disc causes the grinding disc to move up and down by driving the external adjustment teeth of the grinding disc. Vertical operation adjustment realizes the change of grinding gap between the grinding disc and the grinding head, realizing the adjustment of grinding coarseness. The vertical operation of the vertical adjustment knob makes adjusting the grinding coarseness more convenient, efficient, and provides a more intuitive front-mounted vertical adjustment mode.

[0006] Preferably, the vertical adjustment knob has a vertical scale on its outer end. The vertical scale and the vertical adjustment knob are arranged in the same vertical direction, perpendicular to the table surface. The vertical scale is used to indicate the coarseness value of the grinding. This improves the convenience, flexibility, and effectiveness of coarseness grinding adjustment.

[0007] Preferably, the vertical adjustment knob includes an adjustment knob body, a knob fixing seat, and a vertical scale. The adjustment knob body has a knob fixing seat connecting cavity, the knob fixing seat is housed in the knob fixing seat connecting cavity, the vertical scale is located on the outer end face of the knob fixing seat, and a vertical conical toothed disc extends from the inner end of the adjustment knob body. This improves the ease and effectiveness of installing, connecting, and adjusting the vertical adjustment knob, and enhances the convenience and flexibility of coarse and fine grinding adjustment operations.

[0008] Preferably, the vertical adjustment knob is located in the direction the user is facing. This improves the convenience, flexibility, and effectiveness of adjusting the coarse and fine grinding.

[0009] Preferably, the adjusting disc has a vertical through hole, and the inner wall of the vertical through hole has internally threaded adjusting teeth. The internally threaded adjusting teeth are spirally arranged in an up-and-down spiral structure. An outwardly and downwardly tapered annular disc-shaped external adjusting tooth is connected to the top of the vertical through hole. The adjusting disc is connected to the grinding disc via the internally threaded adjusting teeth of its vertical through hole engaging with the external adjusting teeth of the grinding disc on its outer periphery. Furthermore, the annular disc-shaped external adjusting tooth engages with the vertically tapered toothed disc. This improves the simplicity, reliability, and effectiveness of the adjusting disc's linkage adjustment, as well as the ease and effectiveness of its installation, connection, and use, and facilitates both coarse and fine grinding.

[0010] Preferably, the adjusting disc has a lower annular column section. The lower annular column section is formed by the connection between the outer wall of the vertical through hole of the adjusting disc and the top of the inclined bottom surface of the annular disc-shaped outer adjusting tooth. The outer circumference of the lower annular column section is smaller than the outer circumference of the bottom end of the annular disc-shaped outer adjusting tooth, forming an adjusting disc outer wall structure with a barbed shape. This improves the stability, simplicity, reliability, and effectiveness of the adjusting disc's installation, support, and fixation on the bean hopper outer shell cover.

[0011] Preferably, the grinding disc includes a grinding disc base and a grinding disc body. The grinding disc base and the upper section of the grinding disc body are connected and fixed together in a ring. An external adjusting tooth is provided on the outer wall of the bottom end of the grinding disc base. The external adjusting tooth adopts a continuous tooth structure of one or two rings, or a structure composed of several spaced-apart individual teeth. This improves the ease, convenience, and effectiveness of adjusting the coarseness of the grinding disc by following the transmission linkage between the vertical adjustment knob and the adjustment disc.

[0012] Preferably, the grinding disc holder has an annular stepped outer wall structure, wherein the outer circumference of the upper section of the annular stepped outer wall is smaller than the outer circumference of the lower section connected to it, and the grinding disc's external adjustment teeth protrude and connect to the bottom outer wall surface of the lower section. This improves the effectiveness of the limiting installation connection between the grinding disc holder and the bottom of the bean hopper, and improves the simplicity, reliability, and effectiveness of the installation and fixing connection between the grinding disc holder and the top of the grinding disc body.

[0013] Another objective of this invention is to provide a coffee grinder, comprising a main body, a bean hopper, and a powder hopper, characterized by employing a front-mounted vertical adjustment mechanism for grind size as described in one of the aforementioned technical solutions. The vertical operation of the vertical adjustment knob makes adjusting the grind size more convenient, efficient, and provides a more intuitive front-mounted vertical adjustment mode.

[0014] Preferably, the bean hopper is provided with a bean hopper cover shell, the side of which has a groove for mounting and connecting a vertical adjustment knob, and the lower inner side of the bean hopper cover shell has an adjustment plate and a mounting limit support frame for the vertical adjustment knob. This improves the stability, reliability, and effectiveness of the bean hopper cover shell in fixing and limiting the mounting and connecting of the adjustment plate and the vertical adjustment knob.

[0015] The beneficial effects of this utility model are as follows: Rotating the vertical adjustment knob causes the meshing adjustment disc to rotate accordingly. The rotation of the adjustment disc, in turn, drives the grinding disc's external adjustment teeth, causing the grinding disc to move up and down. Vertical operation adjusts the grinding gap between the grinding disc and the grinding blades, thus adjusting the grind size. The vertical adjustment knob makes adjusting the grind size more convenient and efficient, offering a more intuitive front-facing vertical adjustment mode. The front-facing vertical grind adjustment knob design of this coffee grinder uses a bevel gear structure on the knob and adjustment disc to ensure the adjustment mechanism is perpendicular to the front of the machine. The grinding disc's screw rotation moves the grinding disc up and down for grind adjustment, achieving operational convenience. The vertical adjustment knob is perpendicular to the work surface, allowing users to quickly adjust the grind without bending over or rotating the grinder. Attached image description:

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a cross-sectional view of the front vertical adjustment mechanism for grinding coffee beans and a coffee grinder using the mechanism.

[0018] Figure 2 This is an exploded view of the front vertical adjustment mechanism for grinding coffee beans and a coffee grinder using the mechanism.

[0019] Figure 3 This is a partial structural diagram of the front vertical adjustment mechanism for grinding coffee beans, and a coffee grinder using this mechanism, when the vertical adjustment knob and adjustment plate are assembled together. Detailed Implementation

[0020] Example 1:

[0021] Figure 1 , Figure 2 , Figure 3 In the illustrated embodiment, a front-mounted vertically adjustable bean grinder mechanism includes a bean grinder head 50 and a grinding disc that cooperates with the bean grinder head for grinding. It also includes a vertical adjustment knob 20 and an adjustment disc 30. The inner end of the vertical adjustment knob 20 extends and connects to a vertically conical toothed disc 21. The adjustment disc 30 is fitted around the outer periphery of the grinding disc. The outer periphery of the grinding disc has external adjustment teeth 42. The adjustment disc 30 has annular disc-shaped external adjustment teeth 31 and internal threaded adjustment teeth 32 (see...). Figure 2The outer adjusting teeth 42 of the grinding disc mesh with the inner thread adjusting teeth 32 of the adjusting disc 30, and the annular disc-shaped outer adjusting teeth 31 mesh with the vertical conical toothed disc 21 of the vertical adjusting knob. Rotation of the vertical adjusting knob 20 causes the vertical conical toothed disc 21 and the annular disc-shaped outer adjusting teeth 31 to mesh and rotate, thereby causing the meshing adjusting disc 30 to rotate as well. The rotation of the adjusting disc 30, by driving the outer adjusting teeth 42 of the grinding disc, causes the grinding disc to move up and down, thus changing the grinding gap between the grinding disc and the grinding blade head 50, and adjusting the coarseness of the coffee grind.

[0022] A vertical scale 221 is installed and connected to the outer end of the vertical adjustment knob 20. The vertical scale 221 and the vertical adjustment knob 20 adopt the same vertical distribution direction that is perpendicular to the table surface. The vertical scale 221 is used to indicate the grinding coarseness scale value.

[0023] The vertical adjustment knob 20 includes an adjustment knob body, a knob fixing base 22, and a vertical scale 221. The adjustment knob body has a knob fixing base connecting cavity 21, and the knob fixing base 22 is housed in the knob fixing base connecting cavity. The vertical scale 221 is mounted on the outer end face of the knob fixing base 22. A vertical conical toothed disc 21 extends from the inner end of the adjustment knob body. The vertical adjustment knob 20 is installed in the position facing the user.

[0024] The adjusting disc 30 has a vertical through hole 301 at the center of its vertical central axis, and an internal thread adjusting tooth 32 on the inner wall of the vertical through hole 301. The internal thread adjusting tooth 32 is a spiral adjusting tooth structure with an up-and-down spiral shape. The top of the vertical through hole 301 is connected to an annular disc-shaped external adjusting tooth 31 that is tapered outward and downward. The annular disc-shaped external adjusting tooth 31 can better meet the reliable and effective intermeshing transmission with the vertical conical toothed disc at the inner end of the vertical adjusting knob, and effectively use bevel gears to transmit the motion and power between the two intersecting shafts. The adjusting disc 30 is connected to the grinding disc external adjusting tooth 42 on the outer periphery of the grinding disc through the internal thread adjusting tooth 32 of its vertical through hole 301, and the annular disc-shaped external adjusting tooth 32 meshes with the vertical conical toothed disc 21.

[0025] The adjusting disc 30 has a lower annular column section 33. The lower annular column section 33 is formed at the junction of the outer wall of the vertical through hole 301 of the adjusting disc 30 and the top of the inclined bottom surface of the annular disc-shaped outer adjusting tooth 31. The outer circumference of the lower annular column section 33 is smaller than the outer circumference of the bottom end of the annular disc-shaped outer adjusting tooth 31, forming an adjusting disc outer wall structure with a barb shape.

[0026] The grinding disc includes a grinding disc base 40 and a grinding disc body 41. The grinding disc base 40 is annularly connected and fixed to the upper part of the grinding disc body 41. An external adjusting tooth 42 protrudes outward from the bottom outer wall of the grinding disc base 40. The external adjusting tooth 42 adopts a continuous tooth structure of one or two rings, or a structure composed of several spaced-apart teeth. When the external adjusting tooth structure is composed of several spaced-apart teeth, these spaced-apart teeth spatially form one or two rings that mesh with the internal thread adjusting tooth 32 of the adjusting disc 30 through its vertical through hole 301.

[0027] The grinding disc holder 40 has an annular stepped outer wall structure, wherein the outer circumference of the upper section of the annular stepped outer wall 43 is smaller than that of the lower section of the outer wall connected to it, and the grinding disc outer adjustment teeth 42 protrude and are connected to the bottom outer wall surface of the lower section of the outer wall. The inner wall of the grinding disc holder 40 has a three-level progressively increasing inner wall circumference structure, wherein the first inner step formed by the upper first-level inner wall and the second-level inner wall serves to limit, install, and fix the top of the grinding disc body 41.

[0028] Example 2:

[0029] Figure 1 , Figure 2 , Figure 3 In the illustrated embodiment, a coffee grinder includes a main body 10, a bean hopper 60, and a powder hopper 80, employing the front-mounted vertical adjustment grinding mechanism described in Embodiment 1. The main body 10 houses a drive motor 12, a gearbox 13, a rotating shaft 11, a power supply battery, and a control circuit board 15. The power supply battery supplies power to the control circuit board 15, which controls the operation of the motor 12 and gearbox 13, driving the output rotating shaft 11 to rotate. A rotating shaft sleeve 111 is mounted on the drive output rotating shaft 11. The bean hopper 60 is mounted on the upper section of the rotating shaft 11 via the rotating shaft sleeve 111. A grinding head and a grinding disc that cooperate with the grinding head are mounted and connected to the lower section of the rotating shaft 11. Of course, these drive control technologies can also be referenced or borrowed from existing coffee grinder drive control technologies, which will not be described in detail here. The bean hopper 60 is externally provided with a bean hopper cover shell 61. The side of the bean hopper cover shell 61 has a vertical adjustment knob mounting and connecting groove. The lower inner section of the bean hopper cover shell has an adjustment disc and a mounting and limiting support frame for the vertical adjustment knob. The limiting support frame includes a vertical annular support body 62 and an L-shaped support body 63 with a 90-degree outward fold. The vertical annular support body 62 is used for annular vertical support and limiting connection with the outer wall structure of the hook-shaped adjustment disc. The L-shaped support body 63 is used for vertical and horizontal mounting and limiting support of the vertical adjustment knob. Other aspects are the same as in Embodiment 1.

[0030] In use, adjust the vertical adjustment knob 20 in the set direction according to the desired grind size of the coffee. When the knob reaches the specified scale on the vertical dial, the desired grind size can be achieved. The grind size adjustment is intuitive, simple, and easy. During the rotation adjustment, the vertical adjustment knob 20 rotates, causing the adjustment disc 30 that meshes with it to rotate as well. As the adjustment disc 30 rotates, it drives the internal thread adjustment teeth 32 to mesh with the external adjustment teeth 42 of the grinding disc, thus driving the grinding disc body 41 to move up and down. This causes the grinding gap between the grinding disc body 41 and the grinding blade head 50 to change accordingly, achieving the technical effect of adjusting the grind size of the coffee.

[0031] In the description of the positional relationship in this utility model, terms such as "inner", "outer", "upper", "lower", "left", "right", "top", and "bottom" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] The above content and structure describe the basic principles, main features, and advantages of this utility model, which should be understood by those skilled in the art. The examples and descriptions above 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A front vertical adjustment grinding mechanism for grinding the fineness of coffee beans, comprising a grinding head and a grinding disc cooperating with the grinding head, characterized in that: The vertical adjustment knob has a vertical taper tooth disc at the inner end, and the adjustment disc is sleeved on the outer periphery of the grinding disc and has grinding disc outer adjustment teeth on the outer periphery surface, and the adjustment disc has annular disc outer adjustment teeth and inner screw thread adjustment teeth, the grinding disc outer adjustment teeth are engaged with the inner screw thread adjustment teeth of the adjustment disc, and the annular disc outer adjustment teeth are engaged with the vertical taper tooth disc of the vertical adjustment knob.

2. The front vertical adjustment coffee bean grinding mechanism according to claim 1, wherein: The outer end of the vertical adjustment knob is provided with a vertical scale dial, and the vertical scale dial and the vertical adjustment knob are arranged in the same vertical direction perpendicular to the table surface, and the vertical scale dial is used for indicating the grinding fineness scale value.

3. The front vertical adjustment coffee bean grinding mechanism according to claim 1, wherein: The vertical adjustment knob includes an adjustment knob body, a knob fixing seat and a vertical scale dial, the adjustment knob body has a knob fixing seat connecting cavity, the knob fixing seat is accommodated in the knob fixing seat connecting cavity, the vertical scale dial is arranged at the outer end surface of the knob fixing seat, and the inner end of the adjustment knob body is extendedly connected with the vertical taper tooth disc.

4. The front vertical adjustment coffee bean grinding mechanism according to claim 1 or 2 or 3, characterized in that: The vertical adjustment knob is arranged at a position facing the front of an operator.

5. The front vertical adjustment coffee bean grinding mechanism according to claim 1, wherein: The adjustment disc has a vertical through hole, the inner wall surface of the vertical through hole has inner screw thread adjustment teeth, the inner screw thread adjustment teeth are helical adjustment teeth structure, the top end of the vertical through hole is connected with an annular disc outer adjustment tooth which is outwardly and downwardly tapered, the adjustment disc is installed and connected by the inner screw thread adjustment teeth of the vertical through hole being engaged with the grinding disc outer adjustment teeth of the outer periphery of the grinding disc, and the annular disc outer adjustment tooth is engaged with the vertical taper tooth disc.

6. The front vertical adjustment coffee bean grinding mechanism according to claim 1, wherein: The adjustment disc has an adjustment disc lower ring column segment, the outer wall surface of the vertical through hole of the adjustment disc is connected with the top end of the inclined bottom surface of the annular disc outer adjustment tooth, and the adjustment disc lower ring column segment is downwardly connected at the connection position, the outer periphery diameter of the adjustment disc lower ring column segment is smaller than the outer periphery diameter of the bottom end of the annular disc outer adjustment tooth, and the outer wall body of the adjustment disc has a barb structure.

7. The front vertical adjustment coffee bean grinding mechanism according to claim 1, wherein: The grinding disc includes a grinding disc seat and a grinding disc body, the grinding disc seat and the upper segment of the grinding disc body are fixedly connected together, and the grinding disc outer adjustment teeth are protrusively and outwardly connected at the bottom end outer wall surface of the grinding disc seat; the grinding disc outer adjustment teeth have a one-circle or two-circle continuous tooth structure, or are composed of a plurality of spaced-apart tooth bodies.

8. The front vertical adjustment coffee bean grinding mechanism according to claim 7, wherein: The grinding disc seat has an annular step body outer wall body structure, the outer periphery diameter of the upper segment of the annular step body outer wall body is smaller than the outer periphery diameter of the lower segment connected therewith, and the grinding disc outer adjustment teeth are protrusively connected at the bottom end outer wall surface of the lower segment.

9. A coffee grinder comprising a coffee machine body, a bean hopper and a powder hopper, characterized in that: The front vertical adjustment bean grinding mechanism is used.

10. Coffee grinder according to claim 9, characterized in that: The bean bin is externally provided with a bean bin cover shell, the bean bin cover shell is externally provided with a vertical adjustment knob installation connecting cavity, and the lower segment of the bean bin cover shell is internally provided with an installation limiting support frame for the adjustment disc and the vertical adjustment knob.

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