Zero setting mechanism of coffee grinder

Abstract

The zero setting mechanism of the coffee grinder comprises a graduated ring and a connecting ring connected with the graduated ring, scales are arranged on the outer wall of the graduated ring, a plurality of first connecting parts are arranged at one end of the graduated ring, threaded holes are formed in the first connecting parts, an annular groove is formed in one end face of the connecting ring, and a plurality of arc-shaped grooves are formed in the annular groove. The arc-shaped grooves penetrate through the other end face of the connecting ring, the number of the first connecting parts is two times that of the arc-shaped grooves, the first connecting parts are used in cooperation with the arc-shaped grooves, and fasteners are arranged in the threaded holes and the arc-shaped grooves in the first connecting parts. The connecting ring is detachably connected to the machine body, when zero adjustment is carried out, the screw for connecting the graduated ring and the connecting ring is detached, the graduated ring and the connecting ring can rotate relative to each other, and therefore the graduated ring can be adjusted, the 0 scale can be reset, and after adjustment is completed, the screw is screwed again to be installed on the machine body. The zero setting mechanism is simpler in structure and fewer in zero setting steps.

Description

Technical Field

[0001] This utility model relates to the field of grinding machine technology, and mainly to a zeroing mechanism for a coffee grinder. Background Technology

[0002] A coffee grinder is a grinding tool that uses a motor to drive mechanical blades to rotate at high speed and cut and grind coffee into powder. The grinder consists of two circular toothed blades. These toothed blades "tear" the beans rather than "chop" them. This not only grinds the coffee into extremely fine and uniform-sized powder, but also produces porous, irregular particles in the shape of cake crumbs, allowing hot water to penetrate each coffee particle evenly and thoroughly.

[0003] Existing grinders have a fixed spacing between the upper and lower cutter discs, which means they can only grind coffee beans into uniformly sized particles, making it impossible to adjust the particle size according to consumer needs. Therefore, grinders with adjustable cutter spacing have emerged in the market. By adjusting a knob, the spacing between the cutters can be changed to grind coffee into different sizes.

[0004] However, the inventors of this application discovered, during the implementation of the aforementioned coffee grinder, that the coffee grinder has at least the following defects:

[0005] After prolonged use, adjustable tool spacing grinding machines may experience tool adjustment errors, necessitating zeroing. However, such zeroing mechanisms are relatively complex, have numerous parts, and suffer from cumbersome zeroing operations and low zeroing accuracy. Utility Model Content

[0006] This invention aims to solve the problems of cumbersome zeroing operation and low zeroing accuracy in existing technologies. Therefore, the purpose of this invention is to propose a simpler zeroing mechanism for a coffee grinder.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A zeroing mechanism for a coffee grinder includes a scale ring and a connecting ring connected to the scale ring. The outer wall of the scale ring is provided with a scale. One end of the scale ring is provided with a plurality of first connecting parts, each of which has a threaded hole. One end face of the connecting ring is provided with an annular groove, and the annular groove has a plurality of arc-shaped grooves. The arc-shaped grooves penetrate the other end face of the connecting ring. The number of the first connecting parts is twice the number of the arc-shaped grooves and they are used in conjunction. Fasteners are provided in the threaded holes in the first connecting parts and in the arc-shaped grooves.

[0009] Furthermore, the central angle θ of the arc groove is in the range of 50°-80°.

[0010] Furthermore, one end face of the connecting ring is provided with teeth evenly arranged around that end face.

[0011] Furthermore, the outer wall of the connecting ring is provided with several connecting lines.

[0012] Furthermore, one end of the scale ring is provided with an insertion part, which is an integral structure with the scale ring, and the insertion part is inserted into the connecting ring.

[0013] Furthermore, it also includes an umbrella cap, which is fixedly connected to the scale ring, and one end of the umbrella cap has an umbrella-shaped structure.

[0014] Furthermore, the inner wall of the scale ring is provided with a plurality of connecting holes, and the umbrella cap is provided with a plurality of second connecting parts, each of which is provided with a threaded hole. The number of second connecting parts is the same as that of the connecting holes, and they are used in conjunction. Fasteners are provided in the threaded holes of the second connecting parts and the connecting holes.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model features a detachable connecting ring that is attached to the machine body. When zeroing, the screws connecting the scale ring and the connecting ring are removed, allowing the scale ring and the connecting ring to rotate relative to each other. This allows the scale ring to be adjusted and the "0" mark to be reset. After adjustment, the screws are tightened back onto the machine body. This zeroing mechanism has a simpler structure and fewer zeroing steps.

[0017] The features and advantages of this utility model will be described in detail through embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is an exploded view of the present invention;

[0020] Figure 3 This is a bottom view of the present invention;

[0021] Figure 4 This is a cross-sectional view of the present utility model. Figure 1 ;

[0022] Figure 5 This is a cross-sectional view of the present utility model. Figure 2 ;

[0023] Figure 6 This is a 3D view of the machine body;

[0024] Figure 7 This is a cross-sectional view of the present invention connected to the fuselage.

[0025] Figure label:

[0026] 1. Scale ring; 101. First connecting part; 102. Insertion part; 103. Connecting hole;

[0027] 2. Connecting ring, 201. Annular groove, 202. Arc groove, 203. Toothed part, 204. Connecting texture;

[0028] 3. Fasteners;

[0029] 4. Umbrella cap, 401. Second connecting part;

[0030] 5. Body, 501. Adaptive connecting texture, 502. Flexible positioning pin. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0032] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0033] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this utility model pertains. The words “a” or “one” and similar terms used in this application specification and claims do not indicate a limitation of quantity, but rather indicate the presence of at least one. “A plurality” includes two, equivalent to at least two. The words “comprising” or “including” and similar terms mean that the element or object preceding “comprising” or “including” covers the element or object listed following “comprising” or “including” and its equivalents, and does not exclude other elements or objects. The words “connected” or “linked” and similar terms are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this application specification and appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0034] Please refer to Figure 1-7 A zeroing mechanism for a coffee grinder includes a scale ring 1 and a connecting ring 2 connected to the scale ring 1. The scale ring 1 has a scale on its outer wall. One end of the scale ring 1 has six first connecting parts 101, each with a threaded hole. One end face of the connecting ring 2 has an annular groove 201, which contains three arc-shaped grooves 202. The arc-shaped grooves 202 pass through the other end face of the connecting ring 2. The number of first connecting parts 101 is twice the number of arc-shaped grooves 202, and they are used in conjunction. Fasteners 3 are provided in the threaded holes of the first connecting parts 101 and the arc-shaped grooves 202, so that the scale ring 1 and the connecting ring 2 are fixed together by the fasteners 3.

[0035] Based on the above technical means: when the adjustable tool has an error after the grinding machine has been used for a long time, the user can remove the scale ring 1 and the connecting ring 2 from the grinding machine, then loosen the fastener 3 on the scale ring 1 and the connecting ring 2, rotate the scale ring 1 or the connecting ring 2 to zero the scale ring 1, tighten the fastener 3 again after adjustment, and then put it back on the grinding machine.

[0036] In this embodiment, the central angle θ of the arc groove 202 is 69°. When the scale ring 1 and the connecting ring 2 are not completely removed, the maximum adjustment angle of the scale ring 1 is 69°. Incomplete removal means that only the fasteners 3 that fix the scale ring 1 and the connecting ring 2 are loosened.

[0037] In this embodiment, when the scale ring 1 and the connecting ring 2 are completely removed, since the number of the first connecting parts 101 is twice the number of the arc grooves 202, the maximum adjustment angle of the scale ring 1 can reach 360°.

[0038] In this embodiment, one end face of the connecting ring 2 is provided with a toothed portion 203 evenly arranged around the end face. The toothed portion 203 is used in conjunction with the elastic positioning pin 502 on the machine body 5. When the scale ring 1 and the connecting ring 2 rotate together to adjust the tool, the toothed portion 203 will collide with the end of the elastic positioning pin 502, thereby emitting a "buzzing" sound, which serves as a prompt.

[0039] In this embodiment, the outer wall of the connecting ring 2 is provided with a plurality of connecting grooves 204, and the inner wall of the body 5 is provided with an adapter connecting groove 501 that matches the connecting grooves 204. The zeroing mechanism (scale ring 1 and connecting ring 2) is detachably connected to the body 5 through the connecting grooves 204 and the adapter connecting grooves 501, which facilitates the disassembly and zeroing of the zeroing mechanism (scale ring 1 and connecting ring 2).

[0040] In this embodiment, an insertion part 102 is provided at one end of the scale ring 1. The insertion part 102 and the scale ring 1 are an integral structure. The insertion part 102 is inserted into the connecting ring 2.

[0041] In this embodiment, an umbrella cap 4 is also included. The umbrella cap 4 is fixedly connected in the scale ring 1, and one end of the umbrella cap 4 has an umbrella-shaped structure.

[0042] Based on the above technical means, the design of the umbrella cap 4 will guide the coffee beans poured into the scale ring 1 to the outer periphery of the scale ring 1, thus avoiding excessive coffee beans clogging the scale ring 1 and affecting the feeding of coffee beans.

[0043] In this embodiment, three connecting holes 103 are provided on the inner wall of the scale ring 1, and three second connecting parts 401 are provided on the umbrella cap 4. The second connecting parts 401 are provided with threaded holes. The number of second connecting parts 401 and connecting holes 103 are the same and they are used in conjunction. Fasteners 3 are provided in the threaded holes in the second connecting parts 401 and the connecting holes 103, that is, the scale ring 1 and the umbrella cap 4 are fixed together by fasteners 3.

[0044] This utility model relates to a zeroing mechanism for a coffee grinder, and its working principle is explained in conjunction with the accompanying drawings:

[0045] When zeroing is required, simply rotate the zeroing mechanism scale ring 1 in the reverse direction to remove the zeroing mechanism from the body 5, then loosen or remove the fasteners 3 that fix the scale ring 1 and the connecting ring 2, adjust the scale ring 1, and then reassemble the fasteners 3 to fix the two, and then reinstall it back into the body 5.

[0046] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A zero setting mechanism of a coffee grinder, comprising a scale ring and a connecting ring connected with the scale ring, a scale is arranged on the outer wall of the scale ring, characterized in that, The first connecting part is provided with a threaded hole, one end surface of the connecting ring is provided with an annular groove, the annular groove is provided with a plurality of arc grooves, the arc grooves penetrate the other end surface of the connecting ring, the number of the first connecting parts is twice the number of the arc grooves, and the threaded holes in the first connecting parts and the arc grooves are provided with fasteners.

2. A zeroing mechanism for a coffee grinder as claimed in claim 1, characterized in that, The central angle θ of the arc groove ranges from 50° to 80°.

3. The zeroing mechanism of a coffee grinder according to claim 1, characterized in that, One end surface of the connecting ring is provided with a toothed portion uniformly arranged around the end surface.

4. The zeroing mechanism of a coffee grinder according to claim 1, characterized in that, A plurality of connecting lines are arranged on the outer wall of the connecting ring.

5. The zeroing mechanism of a coffee grinder according to claim 1, characterized in that, One end of the scale ring is provided with an insertion part, the insertion part is an integral structure with the scale ring, and the insertion part is inserted into the connecting ring.

6. A zeroing mechanism for a coffee grinder as claimed in any one of claims 1 to 5, wherein, Further comprising a canopy, the canopy is fixedly connected to the scale ring, and one end of the canopy is in an umbrella-shaped structure.

7. A zeroing mechanism for a coffee grinder as claimed in claim 6, characterized in that A plurality of connecting holes are arranged on the inner wall of the scale ring, a plurality of second connecting parts are arranged on the canopy, the second connecting parts are provided with threaded holes, the number of the second connecting parts is the same as that of the connecting holes, and the threaded holes in the second connecting parts and the connecting holes are provided with fasteners.

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