Grinder structure

Abstract

The utility model belongs to the technical field of bean grinding, and particularly relates to a grinder structure which comprises a shell, a rotating shaft, an outer grinding cutterhead, an inner grinding cutterhead and an adjusting mechanism, the shell is provided with a cavity, the rotating shaft rotatably penetrates through the cavity, and the bottom end of the rotating shaft is connected with the driving piece; the outer grinding cutterhead is fixed in the cavity, the inner grinding cutterhead is arranged on the rotating shaft and extends into an inner ring of the outer grinding cutterhead, so that a grinding cavity is formed by the inner grinding cutterhead and the outer grinding cutterhead, a blanking gap is formed in the bottom end of the grinding cavity, a collecting cavity is formed by the bottom end of the grinding cavity and the bottom of the cavity, and a powder outlet is formed in one side of the collecting cavity; the adjusting mechanism is connected with the outer grinding cutterhead and used for adjusting the height position of the outer grinding cutterhead, so that the size of the blanking gap is changed along with adjustment of the height position of the outer grinding cutterhead. The size of the blanking gap is adjusted by adjusting the height position of the outer grinding cutter head, so that the ground bean powder is different in thickness.

Description

Technical Field

[0001] The utility model belongs to the technical field of bean grinding, and in particular relates to a grinder structure. Background Art

[0002] Coffee is a beverage that people often drink in their daily lives. The emergence of coffee bean grinding devices allows people to easily obtain coffee powder and brew fresh coffee. However, the coffee bean grinding devices on the market generally only have a single grinding level and cannot obtain powders of different coarseness and fineness according to user needs.

[0003] For example, the Chinese patent document with publication number CN219742458U discloses a grinding device and a bean grinding coffee machine, including a grinding seat, an outer conical cutter assembly and an inner conical cutter assembly. The grinding seat is provided with a grinding chamber and a powder outlet channel, the powder outlet channel is used to connect the grinding chamber with the outside, the outer conical cutter assembly and the inner conical cutter assembly are both arranged in the grinding chamber, the outer conical cutter assembly is sleeved outside the inner conical cutter assembly and a grinding gap for grinding the object to be ground is formed therebetween, a powder cleaning assembly is also provided in the grinding chamber, the powder cleaning assembly includes a base, the base is coaxially arranged with the inner conical cutter assembly and rotates synchronously, the base is arranged directly below the grinding gap, a plurality of radial ribs are provided on the end face of the base corresponding to the grinding gap, the radial ribs extend out of the base and are close to the inner wall of the grinding chamber, and the powder outlet channel is arranged outside the base and the radial ribs.

[0004] In the technical solution of the above patent document, the powder cleaning component of the grinding device can discharge the powder to solve the problem of powder residue in the grinding chamber, but the coarseness of the ground powder is only one level, which cannot meet the drinking needs of different users. Utility Model Content

[0005] The utility model aims to provide a grinder structure to solve the problem that the existing bean grinder cannot adjust the coarseness of the bean product powder.

[0006] To achieve the above-mentioned purpose, an embodiment of the utility model provides a grinder structure, including an outer shell, a rotating shaft, an outer grinding blade disc, an inner grinding blade disc and an adjusting mechanism; the outer shell is provided with a cavity, the rotating shaft can rotatably pass through the cavity, and the bottom end of the rotating shaft is connected to a driving member; the outer grinding blade disc is fixed in the cavity, the inner grinding blade disc is arranged on the rotating shaft and extends into the inner ring of the outer grinding blade disc, so that the inner grinding blade disc and the outer grinding blade disc form a grinding cavity, the bottom end of the grinding cavity has a blanking gap, and forms a collecting cavity with the bottom of the cavity, and one side of the collecting cavity is provided with a powder outlet; the adjusting mechanism is connected to the outer grinding blade disc, and is used to adjust the height position of the outer grinding blade disc, so that the size of the blanking gap changes with the adjustment of the height position of the outer grinding blade disc.

[0007] Furthermore, a powder brushing piece is provided in the collecting chamber, and the powder brushing piece is connected to the rotating shaft; when the powder brushing piece rotates with the rotating shaft, the powder brushing piece pushes the powder in the collecting chamber to be transported to the powder outlet.

[0008] Furthermore, the inner side of the outer grinding disc is provided with an outer grinding blade surface, and the inner grinding disc is provided with an inner grinding blade surface; the inner grinding blade surface and the outer grinding blade surface are spherical surfaces or conical surfaces.

[0009] Furthermore, the adjustment mechanism includes a turntable, which is rotatably supported on the top of the outer shell, and at least two cam surfaces are relatively arranged on the top side of the turntable, and the cam surfaces have a high point and a low point; the outer grinding disc is supported on the cam surfaces; when the turntable is rotated, the cam surfaces adjust the height position of the outer grinding disc.

[0010] Furthermore, the adjustment mechanism also includes an adjustment shaft and an adjustment gear. A mounting portion extends from one side of the housing. The adjustment shaft is arranged on the mounting portion. The adjustment gear is arranged on the adjustment shaft. The outer side of the turntable is provided with external gear teeth that mesh with the adjustment gear.

[0011] Furthermore, the outer grinding disc is provided with a retaining member, and the retaining member is connected to the outer shell and the adjusting mechanism, so that the outer grinding disc is fixed in the cavity and connected to the adjusting mechanism.

[0012] Furthermore, the retaining member includes a fixing frame, a support ring is provided at the upper end of the fixing frame, the support ring is supported on the mouth of the cavity, a limiting groove is provided on the side wall of the outer shell, a limiting block is provided on the outer side of the fixing frame, and the limiting block is clamped in the limiting groove; the external grinding cutter disc is arranged in the fixing frame.

[0013] Furthermore, the retaining member also includes a fixing sleeve, the external grinding disc is detachably mounted on the bottom side of the fixing sleeve, and a hand-holding position is provided on the top side of the fixing sleeve; a card slot is provided on the inner side of the supporting ring, and the card slot is L-shaped and passes through the top side of the supporting ring; a protrusion is provided on the inner side of the fixing sleeve, and the protrusion is stuck in the card slot.

[0014] Furthermore, the output end of the driving member is connected to a worm, the bottom end of the rotating shaft is connected to a worm wheel, and the driving member is connected to the rotating shaft through the worm and the worm wheel.

[0015] Furthermore, the rotating shaft is a square shaft, the inner grinding disc is provided with a square hole, the square hole is sleeved on the rotating shaft, and a clamping nut is provided on the top of the rotating shaft, and the nut limits the inner grinding disc on the rotating shaft.

[0016] The above one or more technical solutions in the grinder structure provided by the embodiment of the utility model have at least the following technical effects:

[0017] The inner grinding disc and the outer grinding disc form a grinding chamber. The inner grinding disc is arranged on a rotating shaft. The bottom end of the rotating shaft is connected to a driving member. When the bean product is placed in the grinding chamber, the driving member drives the rotating shaft to rotate in the chamber, thereby driving the inner grinding disc to rotate relative to the outer grinding disc, so that the bean product is ground into powder in the grinding chamber. Because the bottom end of the grinding chamber has a blanking gap, and a collecting chamber is formed with the bottom of the chamber, a powder outlet is provided on one side of the collecting chamber. When the diameter of the ground powder is smaller than the size of the blanking gap, the powder can fall from the blanking gap into the collecting chamber, and the powder in the collecting chamber can be poured out from the powder outlet. In addition, the adjustment mechanism is connected to the outer grinding disc, which is used to adjust the height position of the outer grinding disc, so that the size of the blanking gap changes with the adjustment of the height position of the outer grinding disc. The different sizes of the blanking gap make the diameter of the ground bean powder different, that is, the powder coarseness is different, which can meet the different drinking needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 A three-dimensional diagram of a grinder structure provided in an embodiment of the utility model.

[0020] Figure 2 A cross-sectional view of a grinder structure provided in an embodiment of the utility model.

[0021] Figure 3 A partial structural diagram of the grinder structure provided in an embodiment of the utility model.

[0022] Figure 4 A structural diagram of a turntable of a grinder structure provided in an embodiment of the utility model.

[0023] Figure 5 A structural diagram of the inner grinding disc and the rotating shaft of the grinder structure provided in an embodiment of the utility model.

[0024] Figure 6 A structural diagram of the inner grinding disc of the grinder structure provided in an embodiment of the utility model.

[0025] In the figure, 100, housing, 110, cavity, 120, grinding cavity, 130, blanking gap, 140, collecting cavity, 150, powder outlet, 160, mounting portion, 170, limiting groove; 200, rotating shaft, 210, driving member, 211, worm, 212, worm wheel, 220, pressing nut; 300, outer grinding disc, 310, outer grinding blade surface; 400, inner grinding disc, 4 10. Inner grinding blade surface; 420. Square hole; 500. Adjusting mechanism; 510. Turntable; 511. Cam surface; 512. External gear; 520. Adjusting shaft; 530. Adjusting gear; 600. Brushing member; 700. Holding member; 710. Fixing frame; 711. Limiting block; 720. Supporting ring; 721. Slot; 730. Fixing sleeve; 731. Hand-held position; 732. Bump. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0029] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0030] In one embodiment of the grinder structure of the utility model, please refer to Figure 1 to Figure 6 The grinder structure is used for crushing and grinding granular products, such as grains such as rice and noodles, and soybeans, coffee beans, etc. And the coarseness of the ground powder can be adjusted according to the actual needs of users. Specifically, the grinder structure includes a shell 100, a rotating shaft 200, an outer grinding disc 300, an inner grinding disc 400 and an adjustment mechanism 500. The shell 100 is provided with a cavity 110, the rotating shaft 200 can rotatably pass through the cavity 110, the bottom end of the rotating shaft 200 is connected to a driving member 210, the outer grinding disc 300 is fixed in the cavity 110, and the inner grinding disc 400 is provided on the rotating shaft 200 and extends into the inner ring of the outer grinding disc 300, so that the inner grinding disc 400 and the outer grinding disc 300 form a grinding chamber 120, the bottom end of the grinding chamber 120 has a blanking gap 130, and forms a collecting chamber 140 with the bottom of the cavity 110, and a powder outlet 150 is provided on one side of the collecting chamber 140. The adjustment mechanism 500 is connected to the outer grinding disc 300 and is used to adjust the height position of the outer grinding disc 300 so that the size of the blanking gap 130 changes with the height position adjustment of the outer grinding disc 300. Figure 2 and Figure 6 The outer grinding blade disc 300 has an outer grinding blade surface 310 on its inner side, and the inner grinding blade disc 400 has an inner grinding blade surface 410. The inner grinding blade surface 410 and the outer grinding blade surface 310 are spherical surfaces or conical surfaces. Therefore, when the outer grinding blade disc 300 rises or falls, the size of the blanking gap 130 can be adjusted.

[0031] Specifically, the inner grinding blade disc 400 and the outer grinding blade disc 300 form a grinding chamber 120, and the inner grinding blade disc 400 is arranged on the rotating shaft 200, and the bottom end of the rotating shaft 200 is connected to the driving member 210. When the bean product is placed in the grinding chamber 120, the driving member 210 drives the rotating shaft 200 to rotate in the cavity 110, thereby driving the inner grinding blade disc 400 to rotate relative to the outer grinding blade disc 300, so that the bean product is ground into powder in the grinding chamber 120. Because the bottom end of the grinding chamber 120 has a material gap 130, and a collecting chamber 140 is formed with the bottom of the cavity 110, and a powder outlet 150 is provided on one side of the collecting chamber 140, the powder can only fall from the material gap 130 to the collecting chamber 140 when the diameter of the ground powder is smaller than the size of the material gap 130, and the powder in the collecting chamber 140 can be poured out from the powder outlet 150. In addition, the adjustment mechanism 500 is connected to the external grinding blade disc 300 and is used to adjust the height position of the external grinding blade disc 300, so that the size of the blanking gap 130 changes with the adjustment of the height position of the external grinding blade disc 300. The different sizes of the blanking gap 130 result in different diameters of the ground bean powder, that is, different coarseness of the powder, which can meet the different drinking needs of users.

[0032] For further information, please refer to Figure 2 and Figure 5 , a powder brushing member 600 is also provided in the collection chamber 140, and the powder brushing member 600 is connected to the rotating shaft 200. When the powder brushing member 600 rotates with the rotating shaft 200, the powder brushing member 600 pushes the powder in the collection chamber 140 to be transported to the powder outlet 150. Specifically, the powder brushing member 600 rotates synchronously with the rotating shaft 200, so that the powder in the collection chamber 140 is synchronously transported to the powder outlet 150 to avoid the accumulation of powder inside. Among them, the powder brushing member 600 can be a brush distributed at intervals, or it can be a scraper.

[0033] For further information, please refer to Figure 1 and Figure 4 The adjustment mechanism 500 includes a turntable 510, which is rotatably supported on the top of the housing 100. At least two cam surfaces 511 are relatively arranged on the top side of the turntable 510, and the cam surface 511 has a high point and a low point. The outer grinding disc 300 is supported on the cam surface 511. The turntable 510 is rotated, and the cam surface 511 adjusts the height position of the outer grinding disc 300. Specifically, at least two cam surfaces 511 are relatively arranged on the top side of the turntable 510 to ensure that the height of the outer grinding disc 300 is stably adjusted up and down. The adjustment height range of the outer grinding disc 300 is between the high point and the low point of the cam surface 511. The height of the outer grinding disc 300 can be adjusted by rotating the turntable 510. The adjustment method is simple to operate, and the blanking gap 130 can be adjusted to its size at will.

[0034] For further information, please refer to Figure 1The adjustment mechanism 500 further includes an adjustment shaft 520 and an adjustment gear 530. A mounting portion 160 is extended from one side of the housing 100. The adjustment shaft 520 is disposed on the mounting portion 160. The adjustment gear 530 is disposed on the adjustment shaft 520. An outer gear 512 meshing with the adjustment gear 530 is disposed on the outer side of the rotary disk 510. Specifically, by rotating the adjustment shaft 520, the adjustment gear 530 disposed on the adjustment shaft 520 rotates synchronously, so that the rotary disk 510 meshing with the adjustment gear 530 rotates, thereby adjusting the height of the outer grinding cutter disc 300, making the adjustment more convenient.

[0035] For further information, please refer to Figures 1 to 3 The outer grinding disc 300 is provided with a holder 700, which connects the housing 100 and the adjustment mechanism 500, so that the outer grinding disc 300 is fixed in the cavity 110 and connected to the adjustment mechanism 500. Specifically, the holder 700 fixes the outer grinding disc 300 in the cavity 110 and connects to the adjustment mechanism 500. When the inner grinding disc 400 rotates, the outer grinding disc 300 is fixed on the housing 110 and remains stable; when the adjustment mechanism 500 adjusts the outer grinding disc 300, the holder 700 allows the overall height of the outer grinding disc 300 to be stably adjusted up and down.

[0036] For further information, please refer to Figure 3 The holder 700 includes a fixing frame 710, a support ring 720 is provided at the upper end of the fixing frame 710, and the support ring 720 is supported at the mouth of the cavity 110. The side wall of the housing 100 is provided with a limiting groove 170, and a limiting block 711 is provided on the outer side of the fixing frame 710, and the limiting block 711 is stuck in the limiting groove 170. The outer grinding blade 300 is arranged in the fixing frame 710. Specifically, the support ring 720 allows the fixing frame 710 to be stably installed at the mouth of the cavity 100. Because the limit block 711 of the fixed frame 710 is stuck in the limit groove 170 on the side wall of the outer shell 100, the external grinding blade disc 300 is arranged in the fixed frame 710, and the limit groove 170 limits the rotation of the fixed frame 710, thereby limiting the rotation of the external grinding blade disc 300, so that the fixed frame 170 and the external grinding blade disc 300 can only be adjusted up and down with the adjustment mechanism 500, ensuring the safety of grinding of the internal grinding blade disc 400 and the external grinding blade disc 300.

[0037] For further information, please refer to Figure 1 and Figure 2The holder 700 further includes a fixing sleeve 730, the outer grinding blade 300 is detachably mounted on the bottom side of the fixing sleeve 730, and a hand-holding position 731 is provided on the top side of the fixing sleeve 730. A card slot 721 is provided on the inner side of the support ring 720, and the card slot 721 is L-shaped and passes through the top side of the support ring 720. A protrusion 732 is provided on the inner side of the fixing sleeve 730, and the protrusion 732 is stuck in the card slot 721. Specifically, the setting of the fixing sleeve 730 can prevent fingers from accidentally entering the grinding blade and causing injuries. The fixing sleeve 730 is provided with a hand-holding position 731, which is convenient for the user to rotate the fixing sleeve 730, rotate the protrusion 732 to the opening of the card slot 721, and separate the fixing sleeve 730 from the support ring 720. In addition, the outer grinding blade 300 is detachably mounted on the bottom side of the fixing sleeve 730, which is convenient for the outer grinding blade 300 to be disassembled and cleaned, and can prevent beans from being stuck or powder from accumulating on the outer grinding blade 300 to reduce the grinding accuracy.

[0038] For further information, please refer to Figure 5 The output end of the driving member 210 is connected to the worm 211, the bottom end of the rotating shaft 200 is connected to the worm wheel 212, and the driving member 210 and the rotating shaft 200 are connected by the worm 211 and the worm wheel 212. Specifically, the worm and worm wheel transmission connection can reduce the rotation speed and improve the load-bearing capacity.

[0039] For further information, please refer to Figure 5 and Figure 6 The rotating shaft 200 is a square shaft, the inner grinding disc 400 is provided with a square hole 420, the square hole 420 is sleeved on the rotating shaft 200, and a clamping nut 220 is provided at the top of the rotating shaft 200, and the nut 220 limits the inner grinding disc 400 on the rotating shaft 200. Specifically, the inner grinding disc 400 and the rotating shaft 200 are connected in a coordinated manner, and the clamping nut 220 limits the inner grinding disc 400 on the rotating shaft 200, so that the inner grinding disc 400 and the rotating shaft 200 rotate synchronously and remain stable.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grinder structure, characterized in that: It includes an outer shell, a rotating shaft, an outer grinding disc, an inner grinding disc and an adjusting mechanism; the outer shell is provided with a cavity, the rotating shaft can rotatably pass through the cavity, and the bottom end of the rotating shaft is connected to a driving member; the outer grinding disc is fixed in the cavity, the inner grinding disc is arranged on the rotating shaft and extends into the inner ring of the outer grinding disc, so that the inner grinding disc and the outer grinding disc form a grinding cavity, the bottom end of the grinding cavity has a blanking gap, and forms a collecting cavity with the bottom of the cavity, and one side of the collecting cavity is provided with a powder outlet; the adjusting mechanism is connected to the outer grinding disc, and is used to adjust the height position of the outer grinding disc, so that the size of the blanking gap changes with the adjustment of the height position of the outer grinding disc.

2. The grinding device structure according to claim 1, characterized in that: A powder brushing piece is also provided in the collecting chamber, and the powder brushing piece is connected to the rotating shaft; when the powder brushing piece rotates with the rotating shaft, the powder brushing piece pushes the powder in the collecting chamber to be transported to the powder outlet.

3. The grinding device structure according to claim 1, characterized in that: The inner side of the outer grinding disc is provided with an outer grinding surface, and the inner grinding disc is provided with an inner grinding surface; the inner grinding surface and the outer grinding surface are spherical surfaces or conical surfaces.

4. The grinding device structure according to any one of claims 1 to 3, characterized in that: The adjustment mechanism includes a turntable, which is rotatably supported on the top of the shell, and at least two cam surfaces are relatively arranged on the top side of the turntable, and the cam surfaces have a high point and a low point; the outer grinding disc is supported on the cam surfaces; when the turntable is rotated, the cam surfaces adjust the height position of the outer grinding disc.

5. The grinding device structure according to claim 4, characterized in that: The adjustment mechanism also includes an adjustment shaft and an adjustment gear. A mounting portion extends from one side of the housing. The adjustment shaft is arranged on the mounting portion. The adjustment gear is arranged on the adjustment shaft. The outer side of the turntable is provided with external gear teeth meshing with the adjustment gear.

6. The grinding device structure according to any one of claims 1 to 5, characterized in that: The outer grinding disc is provided with a retaining member, and the retaining member is connected to the outer shell and the adjusting mechanism, so that the outer grinding disc is fixed in the cavity and connected to the adjusting mechanism.

7. The grinding device structure according to claim 6, characterized in that: The retaining member includes a fixing frame, a supporting ring is provided at the upper end of the fixing frame, the supporting ring is supported on the mouth of the cavity, a limiting groove is provided on the side wall of the shell, a limiting block is provided on the outer side of the fixing frame, and the limiting block is clamped in the limiting groove; the external grinding disc is arranged in the fixing frame.

8. The grinding device structure according to claim 7, characterized in that: The retaining member also includes a fixing sleeve, the outer grinding disc is detachably mounted on the bottom side of the fixing sleeve, and a hand-holding position is provided on the top side of the fixing sleeve; a card slot is provided on the inner side of the supporting ring, the card slot is L-shaped and passes through the top side of the supporting ring; a protrusion is provided on the inner side of the fixing sleeve, and the protrusion is stuck in the card slot.

9. The grinding device structure according to any one of claims 1 to 5, characterized in that: The output end of the driving member is connected to the worm, the bottom end of the rotating shaft is connected to the worm wheel, and the driving member is connected to the rotating shaft through the worm and the worm wheel.

10. The grinding device structure according to claim 1, characterized in that: The rotating shaft is a square shaft, the inner grinding disc is provided with a square hole, the square hole is sleeved on the rotating shaft, and a clamping nut is provided on the top of the rotating shaft, and the nut limits the inner grinding disc on the rotating shaft.

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