Rotary limiting grinding equipment

Abstract

The utility model belongs to the field of grinding devices, and particularly relates to grinding equipment with a rotary limiting function. The grinding equipment mainly comprises a grinding main body, a scale adjusting ring, a rotary limiting ring and the like. In the using process, when a user rotates the scale adjusting ring, the outer cutter mechanism can be driven to move in the axial direction, and the inner cutter mechanism does not move in the axial direction, so that the distance between the inner cutter mechanism and the outer cutter mechanism can be adjusted through the rotation degree, and the grinding granularity is controlled. At the moment, the rotary limiting ring which is synchronously arranged with the scale adjusting ring can only rotate within a circumferential range of less than 360 degrees, so that a dead lock state caused by continuously rotating the scale adjusting ring is avoided, and the convenience of use and operation is ensured; meanwhile, due to the existence of the rotary limiting ring, the original precision matching degree between all the components is weakened to a certain degree, and the adaptive installation cost between all the components is also reduced.

Description

Technical Field

[0001] This utility model belongs to the field of grinding devices, specifically relating to a grinding device with rotational limiting. Background Technology

[0002] Grinding devices are widely used in daily life. Taking a coffee bean grinder as an example, it is a device that grinds coffee beans into coffee powder. It mainly uses a motor to drive (or a hand crank to drive) mechanical blades to rotate, cutting and grinding the coffee beans into powder for brewing coffee.

[0003] Existing coffee bean grinders have the following drawbacks:

[0004] 1. Whether rotating the scale adjustment ring forward or backward, it is impossible to know the progress of rotation, which often leads to it being locked directly, making it unsuitable for later use;

[0005] 2. The various components of a coffee bean grinder are designed for extremely precise fit, which results in very high installation costs during the adaptation and installation process. Utility Model Content

[0006] To address the problems existing in the prior art, this utility model provides a rotary limiting grinding device, which includes:

[0007] Grinding body; the grinding body includes an inner blade mechanism, an outer blade mechanism, and a limiting stop;

[0008] A scale adjustment ring; the scale adjustment ring is sleeved on the outside of the grinding body. By rotating the scale adjustment ring circumferentially, the relative position between the inner blade mechanism and the outer blade mechanism is adjusted axially, thereby adjusting the grinding particle size.

[0009] A rotating limiting ring; the rotating limiting ring is sleeved on the inner side of the scale adjusting ring, and an outwardly convex mechanism and an inwardly convex mechanism are respectively radially arranged on the outer and inner sides of the rotating limiting ring; wherein:

[0010] The protruding mechanism abuts against the scale adjustment ring, so that the rotation limiting ring rotates synchronously with the scale adjustment ring;

[0011] At the start of rotation, the inner convex mechanism begins to rotate circumferentially from one side of the limiting block until it comes into contact with the other side of the limiting block, at which point the rotation ends.

[0012] As an optional implementation, a scale groove is provided on the inner side of the scale adjustment ring; wherein:

[0013] The graduated grooves are evenly distributed circumferentially and abut against the convex mechanism.

[0014] As an optional implementation, the inner circumferential side of the scale adjustment ring is provided with an elastic protrusion; wherein:

[0015] The elastic protrusion is fixedly installed; when the scale adjustment ring rotates circumferentially, the elastic protrusion and the scale groove squeeze against each other to produce a sound, providing audible feedback to the user.

[0016] As an optional implementation, the grinding body further includes an outer blade lifting and limiting mechanism, an outer blade fixing ring, and an outer blade anti-rotation post; wherein:

[0017] The inner side of the scale adjustment ring is provided with a first thread, and the outer side of the external blade lifting limit mechanism is provided with a second thread. The first thread and the second thread are adapted to be connected.

[0018] The inner side of the outer blade lifting and limiting mechanism is provided with a third thread, and the outer side of the outer blade fixing ring is provided with a fourth thread. The third thread and the fourth thread are adapted to be connected.

[0019] The outer blade anti-rotation post is located inside the outer blade fixing ring and outside the outer blade mechanism to prevent the outer blade mechanism from rotating.

[0020] As an optional implementation, the grinding body also includes an axial guide groove; wherein:

[0021] The axial guide groove is adapted to the outer blade lifting and limiting mechanism so that during the rotation of the scale adjustment ring, the outer blade lifting and limiting mechanism only moves up and down in the axial direction.

[0022] As an optional implementation, the grinding body further includes a rotating shaft; wherein:

[0023] The inner blade mechanism is sleeved at the bottom of the rotating shaft. When the rotating shaft rotates under the drive of an external force, the inner blade mechanism rotates synchronously and performs crushing and cutting.

[0024] As an optional implementation, the grinding body further includes an internal blade positioning mechanism; wherein:

[0025] The inner blade positioning mechanism is located below the inner blade mechanism.

[0026] The beneficial effects of this utility model are as follows:

[0027] Taking a coffee bean grinder as an example, before starting to grind, it is often necessary to adjust the position between the inner and outer blade mechanisms by rotating the scale adjustment ring. Specifically:

[0028] When the user rotates the scale adjustment ring, the outer blade mechanism moves axially, while the inner blade mechanism remains stationary. This allows adjustment of the distance between the inner and outer blade mechanisms, and control of the grinding grit, by varying the degree of rotation. Simultaneously, the rotation limit ring, which is synchronously set with the scale adjustment ring, can only rotate within a circumferential range of less than 360°. This prevents continuous rotation of the scale adjustment ring from causing a lock-up, ensuring ease of operation. Furthermore, the presence of the rotation limit ring reduces the precision required between components, lowering the installation costs associated with fitting different parts together. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of a grinding device with rotational limiting.

[0031] Figure 2 This is an exploded view of a grinding device with rotary limiting.

[0032] Figure 3 This is a cross-sectional view of a grinding device with rotational limiting.

[0033] Figure 4 This is the first type of localized exploded view.

[0034] Figure 5 This is the second type of localized exploded view.

[0035] Figure 6 This is the first type of partial schematic diagram.

[0036] Figure 7 This is the third type of localized exploded view.

[0037] Figure 8 This is the fourth type of localized exploded view.

[0038] Figure 9 This is the second type of partial schematic diagram.

[0039] The attached figures are labeled as follows:

[0040] 1-Grinding body; 11-Inner blade mechanism; 12-Outer blade mechanism; 13-Limit stop; 14-Outer blade lifting limit mechanism; 141-Second thread; 142-Third thread; 15-Outer blade retaining ring; 151-Fourth thread; 152-Groove; 16-Outer blade anti-rotation post; 17-Axial guide groove; 18-Rotation shaft; 19-Inner blade positioning mechanism; 191-Screw;

[0041] 2-Scale adjustment ring; 21-Scale groove; 22-Elastic protrusion; 23-First thread;

[0042] 3-Rotational limiting ring; 31-Outer convex mechanism; 32-Inner convex mechanism. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0044] In the description of this application, it should be understood that the terms "upper", "lower", "inner", "outer", "top", "bottom", etc., 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 this application 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 application.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" or "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0047] Example 1

[0048] Example 1 General Reference Figures 1-5 It provides a rotary limiting grinding device, comprising:

[0049] Grinding body 1; the grinding body 1 includes an inner blade mechanism 11, an outer blade mechanism 12, and a limiting stop 13 (for reference). Figures 1-3 );

[0050] Scale adjustment ring 2; the scale adjustment ring 2 is sleeved on the outside of the grinding body 1. By rotating the scale adjustment ring 2 circumferentially, the relative position between the inner blade mechanism 11 and the outer blade mechanism 12 is adjusted axially, thereby adjusting the grinding particle size (reference). Figures 1-4 );

[0051] A rotating limiting ring 3; the rotating limiting ring 3 is sleeved on the inner side of the scale adjustment ring 2, and an outwardly protruding mechanism 31 and an inwardly protruding mechanism 32 are respectively radially arranged on the outer and inner sides of the rotating limiting ring 3; wherein:

[0052] The protruding mechanism 31 abuts against the scale adjustment ring 2, so that the rotation limiting ring 3 rotates synchronously with the scale adjustment ring 2 (reference). Figure 4 );

[0053] At the start of rotation, the inner convex mechanism 32 begins to rotate circumferentially from one side of the limiting block 13 until it abuts against the other side of the limiting block 13, at which point the rotation ends, i.e., the rotation angle is less than 360° (reference). Figure 5 ).

[0054] In fact, the selection of the limiting block 13 can be in various forms, such as... Figure 5 The cylindrical stop shown can also be a square stop on the same horizontal plane as the inner convex mechanism 32. That is, the specific shape of the limiting stop 13 is not limited, and any structure that can abut against the inner convex mechanism 32 and achieve the corresponding limiting function is acceptable.

[0055] Example 2

[0056] As an optional implementation method, refer to Figure 4 The inner side of the scale adjustment ring 2 is provided with a scale groove 21; wherein:

[0057] The scale grooves 21 are evenly distributed circumferentially and abut against the protruding mechanism 31. This arrangement ensures that the rotation limiting ring 3 rotates synchronously when the scale adjustment ring 2 is rotated.

[0058] As an optional implementation method, refer to Figure 6 The inner circumferential side of the scale adjustment ring 2 is provided with an elastic protrusion 22; wherein:

[0059] The elastic protrusion 22 is fixedly installed; when the scale adjustment ring 2 rotates circumferentially, the elastic protrusion 22 and the scale groove 21 squeeze each other to produce a sound, which prompts the user in the form of sound feedback.

[0060] Example 3

[0061] As an optional implementation method, refer to Figure 7 The grinding body 1 further includes an outer blade lifting and limiting mechanism 14, an outer blade fixing ring 15, and an outer blade anti-rotation post 16; wherein:

[0062] The inner side of the scale adjustment ring 2 is provided with a first thread 23, and the outer side of the external blade lifting limit mechanism 14 is provided with a second thread 141. The first thread 23 and the second thread 141 are adapted to be connected.

[0063] The inner side of the outer blade lifting and limiting mechanism 14 is provided with a third thread 142, and the outer side of the outer blade fixing ring 15 is provided with a fourth thread 151. The third thread 142 and the fourth thread 151 are adapted to be connected.

[0064] The outer blade anti-rotation post 16 is disposed on the inner side of the outer blade fixing ring 15 and the outer side of the outer blade mechanism 12. The inner side of the outer blade fixing ring 15 has a groove 152, which engages and fixes with the outer blade anti-rotation post 16 to prevent the outer blade mechanism 12 from rotating. More specifically, by... Figure 7 It can be seen that the outer blade anti-rotation post 16 is located in the side-level area outside the outer blade mechanism 12 (either one side or both sides, in this embodiment both sides), and is engaged and fixed with the groove 152 on the inner side of the outer blade fixing ring 15.

[0065] As an optional implementation method, refer to Figure 8 The grinding body 1 also includes an axial guide groove 17; wherein:

[0066] The axial guide groove 17 is adapted to the outer blade lifting and limiting mechanism 14 so that during the rotation of the scale adjustment ring 2, the outer blade lifting and limiting mechanism 14 only moves up and down in the axial direction.

[0067] Example 4

[0068] As an optional implementation method, refer to Figure 9 The grinding body 1 further includes a rotating shaft 18; wherein:

[0069] The inner blade mechanism 11 is sleeved at the bottom of the rotating shaft 18. When the rotating shaft 18 is driven by an external force (hand crank or micro motor), the inner blade mechanism 11 rotates synchronously and performs crushing and cutting.

[0070] As an optional implementation method, refer to Figure 8The grinding body 1 further includes an inner blade positioning mechanism 19; wherein:

[0071] The inner blade positioning mechanism 19 is fixedly mounted below the inner blade mechanism 11 by screws 191.

[0072] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A rotary limiting grinding device, characterized in that, include: Grinding body; The grinding body includes an inner blade mechanism, an outer blade mechanism, and a limiting stop; Scale adjustment ring; The scale adjustment ring is sleeved on the outside of the grinding body. By rotating the scale adjustment ring circumferentially, the relative position between the inner blade mechanism and the outer blade mechanism can be adjusted axially, thereby adjusting the grinding particle size. A rotating limiting ring; the rotating limiting ring is sleeved on the inner side of the scale adjusting ring, and an outwardly convex mechanism and an inwardly convex mechanism are respectively radially arranged on the outer and inner sides of the rotating limiting ring; wherein: The protruding mechanism abuts against the scale adjustment ring, so that the rotation limiting ring rotates synchronously with the scale adjustment ring; At the start of rotation, the inner convex mechanism begins to rotate circumferentially from one side of the limiting block until it comes into contact with the other side of the limiting block, at which point the rotation ends.

2. The rotary limiting grinding device according to claim 1, characterized in that, The inner side of the scale adjustment ring is provided with a scale groove; wherein: The graduated grooves are evenly distributed circumferentially and abut against the convex mechanism.

3. The rotary limiting grinding device according to claim 2, characterized in that, The inner circumferential side of the scale adjustment ring is provided with an elastic protrusion; wherein: The elastic protrusion is fixedly installed; when the scale adjustment ring rotates circumferentially, the elastic protrusion and the scale groove squeeze against each other to produce a sound, providing audible feedback to the user.

4. The rotary limiting grinding device according to claim 1, characterized in that, The grinding body also includes an outer blade lifting and limiting mechanism, an outer blade fixing ring, and an outer blade anti-rotation post; wherein: The inner side of the scale adjustment ring is provided with a first thread, and the outer side of the external blade lifting limit mechanism is provided with a second thread. The first thread and the second thread are adapted to be connected. The inner side of the outer blade lifting and limiting mechanism is provided with a third thread, and the outer side of the outer blade fixing ring is provided with a fourth thread. The third thread and the fourth thread are adapted to be connected. The outer blade anti-rotation post is located inside the outer blade fixing ring and outside the outer blade mechanism to prevent the outer blade mechanism from rotating.

5. The rotary limiting grinding device according to claim 4, characterized in that, The grinding body also includes an axial guide groove; wherein: The axial guide groove is adapted to the outer blade lifting and limiting mechanism so that during the rotation of the scale adjustment ring, the outer blade lifting and limiting mechanism only moves up and down in the axial direction.

6. The rotary limiting grinding device according to claim 1, characterized in that, The grinding body further includes a rotating shaft; wherein: The inner blade mechanism is sleeved at the bottom of the rotating shaft. When the rotating shaft rotates under the drive of an external force, the inner blade mechanism rotates synchronously and performs crushing and cutting.

7. The rotary limiting grinding device according to claim 1, characterized in that, The grinding body further includes an internal blade positioning mechanism; wherein: The inner blade positioning mechanism is located below the inner blade mechanism.

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