Outer adjusting ring structure of bean grinding device of coffee machine

Abstract

The utility model discloses an outer adjusting ring structure of a bean grinding device of a coffee machine, which comprises a grinding cylinder and a grinding component, the grinding component is positioned in a grinding cavity of the grinding cylinder and comprises a movable grinding wheel and a static grinding wheel, the movable grinding wheel is arranged on a transmission shaft, the transmission shaft is connected with a driving device of the coffee machine, and the static grinding wheel is arranged on a static grinding wheel seat. The static grinding wheel is sleeved with an adjusting ring in a threaded mode, the static grinding wheel base is arranged at the bottom of the grinding cavity, an outer adjusting ring is arranged at an opening in the bottom of the grinding cavity, a linkage assembly is arranged between the outer adjusting ring and the adjusting ring, the outer adjusting ring is rotated to drive the adjusting ring to rotate to promote the static grinding wheel to move in the axial direction, and the gap between the movable grinding wheel and the static grinding wheel is changed. The outer adjusting ring is arranged at the bottom opening of the grinding cavity, the linkage assembly is further arranged between the outer adjusting ring and the adjusting ring, the outer adjusting ring is rotated to stably drive the adjusting ring to change the gap between the movable grinding wheel and the static grinding wheel, and after the sealing plate at the bottom opening of the grinding cavity is detached, the outer adjusting ring can be conveniently detached to be cleaned and maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of beverage machines, in particular to an outer adjustment ring structure of a coffee bean grinding device. Background Art

[0002] The bean grinding device of the coffee machine can grind coffee beans into coffee powder required for brewing coffee, and the bean grinding device is generally equipped with an adjustment component to adjust and change the gap between the moving grinding wheel and the static grinding wheel of the bean grinding device, so as to obtain coffee powder of different coarseness and fineness. In order to facilitate adjustment, an external adjustment member is generally provided on the outside of the bean grinding device, and the external adjustment member is linked with the adjustment member in the bean grinding device, so that the gap adjustment is completed by operating the external adjustment member to drive the adjustment member in the bean grinding device. In the current side-out type bean grinding device, the lower part of the bean grinding device is a driving device, and the side of the bean grinding device is a discharge port for coffee powder. Therefore, the external adjustment member is generally arranged above the bean grinding device, and is linked with the adjustment member in the bean grinding device by a fixed connection or a spring pressure, among which the fixed connection has good stability but is not convenient for disassembly and cleaning, and the spring pressure method has poor stability, and it is difficult to achieve both good stability and easy disassembly and cleaning. In the straight-fall type bean grinding device, the straight-fall discharge of coffee powder requires the driving device to be arranged only above or to the side of the bean grinding device, making the stable arrangement, disassembly and cleaning of the adjustment member and the external adjustment member more difficult.

[0003] CN202320003767.4 discloses a grinding device and a coffee bean grinder, including a driving motor, a transmission assembly, a cutter disc assembly and a cutter disc adjustment device, wherein the transmission assembly includes a housing, a belt assembly arranged in the housing, and a transmission shaft arranged through the housing; the cutter disc assembly includes an upper cutter disc, a lower cutter disc and a rotating disc fixedly connected to the lower cutter disc, wherein the upper cutter disc and the lower cutter disc are aligned and spliced ​​to form a grinding chamber, and the rotating disc is located in the grinding chamber; the driving motor drives the transmission shaft through the belt assembly to rotate the rotating disc to drive the lower cutter disc to rotate; wherein the cutter disc adjustment assembly includes an outer adjustment wheel and an inner adjustment cylinder, and the inner adjustment wheel moves up and down through the outer adjustment wheel and the housing. In this technical solution, the inner adjustment cylinder is in contact with the outer adjustment wheel through an elastic element, and the outer adjustment wheel is adjusted so that the inner adjustment cylinder adjusts the gap of the cutter disc under elastic pressure, and the stability is poor. Utility Model Content

[0004] The purpose of the utility model is to provide an outer adjustment ring structure of a coffee machine grinding device, so as to solve the problem that in a straight-fall type grinding device, the straight-fall discharge of coffee powder requires the driving device to be arranged above or to the side of the grinding device, and the adjustment components and external adjustment parts are difficult to be stably arranged and disassembled and cleaned, so as to overcome the shortcomings of the prior art.

[0005] The utility model provides an outer adjustment ring structure of a coffee machine bean grinding device through the following technical scheme, comprising a grinding cylinder and a grinding assembly, the grinding assembly is located in a grinding chamber of the grinding cylinder, the grinding assembly comprises a dynamic grinding wheel and a static grinding wheel, the dynamic grinding wheel is arranged on a transmission shaft, the transmission shaft is connected to a driving device of the coffee machine, the static grinding wheel is placed on a static grinding wheel seat, the static grinding wheel threaded sleeve is provided with an adjustment ring, the static grinding wheel seat is arranged at the bottom of the grinding chamber, an outer adjustment ring is provided at the bottom opening of the grinding chamber, a linkage assembly is provided between the outer adjustment ring and the adjustment ring, rotating the outer adjustment ring drives the adjustment ring to rotate to cause the static grinding wheel to move axially, thereby changing the gap between the dynamic grinding wheel and the static grinding wheel.

[0006] Furthermore, a sealing plate is provided at the bottom opening of the grinding chamber, the sealing plate is connected to the lower part of the static grinding wheel seat, and the outer adjustment ring is located between the static grinding wheel seat and the sealing plate.

[0007] Furthermore, the linkage assembly includes a positioning column arranged on the inner bottom surface of the outer adjustment ring, a positioning hole arranged on the outer edge of the bottom of the adjustment ring, and a fan-shaped guide groove is provided at the bottom of the static grinding wheel seat, and the positioning column passes through the guide groove and extends into the positioning hole.

[0008] Furthermore, the inner wall of the adjusting ring is provided with threads, and the outer wall of the static grinding wheel is provided with convex teeth corresponding to the threads.

[0009] Furthermore, the central angle of the fan-shaped guide groove is less than 90°.

[0010] The utility model has the following beneficial effects: the outer adjusting ring is arranged at the bottom opening of the grinding chamber, and a linkage component is provided between the outer adjusting ring and the adjusting ring. The outer adjusting ring is rotated to stably drive the adjusting ring to change the gap between the moving grinding wheel and the stationary grinding wheel. After the sealing plate at the bottom opening of the grinding chamber is removed, the outer adjusting ring can be conveniently removed for cleaning and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a schematic diagram of the overall grinding device of a coffee machine.

[0012] Figure 2 It is an exploded schematic diagram of the outer adjustment ring structure of the coffee machine grinding device described in the utility model.

[0013] Figure 3 This is a cross-sectional view of the outer adjustment ring structure of a coffee machine grinding device described in the utility model.

[0014] Figure 4 This is a structural schematic diagram of an outer adjustment ring, an adjustment ring and an outer grinding wheel seat of an outer adjustment ring structure of a coffee machine grinding device described in the utility model.

[0015] Figure 5 This is an overall schematic diagram of an outer adjustment ring structure of a coffee machine grinding device according to the utility model installed on a coffee machine.

[0016] in, Figures 1 to 5 The corresponding relationship between the reference numerals and component names in the figure is:

[0017] 1 grinding cylinder, 2 grinding assembly, 4 grinding chamber, 7 dynamic grinding wheel, 8 static grinding wheel, 9 transmission shaft, 18 static grinding wheel seat, 21 outer adjustment ring, 22 positioning column, 23 adjustment ring, 24 positioning hole, 25 guide groove, 26 thread, 27 convex tooth, 28 ring tooth surface, 29 marble seat, 30 marble, 31 closing plate. DETAILED DESCRIPTION

[0018] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0019] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0020] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0021] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application 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 limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] Refer to the following Figure 1-Figure 5 An outer adjustment ring structure of a coffee machine grinding device according to some embodiments of the present application is described.

[0024] A straight-down bean grinding device for a coffee machine, wherein a driving device is arranged above the bean grinding device, the bean grinding device comprises a grinding cylinder 1 and a grinding assembly 2, the grinding assembly 2 is located in a grinding chamber 4 of the grinding cylinder 1, the grinding assembly 2 comprises a movable grinding wheel 7 and a static grinding wheel 8, the movable grinding wheel 7 is arranged on a transmission shaft 9, and the transmission shaft 9 is connected to the driving device of the coffee machine, the driving device drives the transmission shaft 9 to rotate the movable grinding wheel 7 relative to the static grinding wheel 8, and grinds the coffee beans entering the grinding chamber 4 into powder, and discharges the powder from the bottom opening of the grinding chamber 4.

[0025] A static grinding wheel seat 18 is provided at the bottom of the grinding chamber 4, and the static grinding wheel 8 is placed on the static grinding wheel seat 18, and a sealing plate 31 is also provided at the bottom opening of the grinding chamber 4, and the sealing plate 31 is connected to the lower part of the static grinding wheel seat 18, and the static grinding wheel 8 is threadedly sleeved with an adjusting ring 23, and the outer adjusting ring 21 is arranged between the static grinding wheel seat 18 and the sealing plate 31, and the outer edge of the outer adjusting ring 21 surrounds the outer side wall of the bottom opening of the grinding chamber 4.

[0026] Since the inner wall of the adjusting ring 23 is provided with a thread 26 and the outer wall of the static grinding wheel 8 is provided with a convex tooth 27 corresponding to the thread 26, the static grinding wheel 8 can be moved axially by rotating the adjusting ring 23 through the interaction between the thread 26 and the convex tooth 27, thereby changing the gap between the dynamic grinding wheel 7 and the static grinding wheel 8 and adjusting the coarseness of the coffee powder.

[0027] A positioning column 22 is provided on the inner bottom surface of the outer adjustment ring 21, a positioning hole 24 is provided on the outer edge of the bottom of the adjustment ring 23, and a fan-shaped guide groove 25 is provided on the bottom of the static grinding wheel seat 18. The positioning column 22 passes through the guide groove 25 and extends into the positioning hole 24 to form a linkage assembly between the outer adjustment ring 21 and the adjustment ring 23. Under the action of the linkage assembly, rotating the outer adjustment ring 21 can easily drive the adjustment ring 23 to rotate, thereby realizing the gap adjustment between the dynamic grinding wheel 7 and the static grinding wheel 8.

[0028] Since the outer adjustment ring 21 is disposed between the static grinding wheel seat 18 and the sealing plate 31, and the sealing plate 31 is connected to the lower part of the static grinding wheel seat 18 by screws, the outer adjustment ring 21 has good stability, and the direct connection between the positioning column 22 and the positioning hole 24 can also ensure stable and effective rotation adjustment. When the outer adjustment ring 21 needs to be cleaned and maintained, the sealing plate 31 only needs to be removed from the static grinding wheel seat 18 to conveniently remove the outer adjustment ring 21.

[0029] The central angle of the guide groove 25 is less than 90°, which can limit the rotation angle of the positioning column 22, thereby controlling the rotation angle of the adjustment ring 23, so that the gap between the dynamic grinding wheel 7 and the static grinding wheel 8 is controlled within a reasonable range, avoiding collision and damage between the dynamic grinding wheel 7 and the static grinding wheel 8 caused by a small gap, and avoiding excessive gap affecting the brewing of coffee powder.

[0030] The bottom of the adjusting ring 23 is provided with an annular tooth surface 28, and the inner surface of the static grinding wheel seat 18 is provided with a marble seat 29, and a marble 30 is installed in the marble seat 29, and the marble 30 is in rolling contact with the annular tooth surface 28. Since the static grinding wheel seat 18 is fixed, the rolling contact between the marble 30 and the annular tooth surface 28 can more accurately realize the positioning and maintenance of the adjusting ring 23 during the rotation process.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An outer adjustment ring structure of a coffee machine bean grinding device, comprising a grinding cylinder and a grinding assembly, wherein the grinding assembly is located in a grinding chamber of the grinding cylinder, and is characterized in that: The grinding assembly includes a dynamic grinding wheel and a static grinding wheel, the dynamic grinding wheel is arranged on a transmission shaft, the transmission shaft is connected to a driving device of the coffee machine, the static grinding wheel is placed on a static grinding wheel seat, the static grinding wheel threaded sleeve is provided with an adjustment ring, the static grinding wheel seat is arranged at the bottom of the grinding chamber, an outer adjustment ring is provided at the bottom opening of the grinding chamber, a linkage assembly is provided between the outer adjustment ring and the adjustment ring, rotating the outer adjustment ring drives the adjustment ring to rotate so that the static grinding wheel moves axially, thereby changing the gap between the dynamic grinding wheel and the static grinding wheel.

2. The outer adjustment ring structure of the coffee bean grinding device of claim 1, characterized in that: A sealing plate is also provided at the bottom opening of the grinding chamber, and the sealing plate is connected to the lower part of the static grinding wheel seat, and the outer adjustment ring is located between the static grinding wheel seat and the sealing plate.

3. The outer adjustment ring structure of the coffee bean grinding device of claim 1, characterized in that: The linkage assembly includes a positioning column arranged on the inner bottom surface of the outer adjustment ring and a positioning hole arranged on the outer edge of the bottom of the adjustment ring. The bottom of the static grinding wheel seat is provided with a fan-shaped guide groove, and the positioning column extends into the positioning hole through the guide groove.

4. The outer adjustment ring structure of the coffee bean grinding device of claim 3, characterized in that: The inner wall of the adjusting ring is provided with threads, and the outer wall of the static grinding wheel is provided with convex teeth corresponding to the threads.

5. The outer adjustment ring structure of the coffee bean grinding device of claim 3, characterized in that: The central angle of the fan-shaped guide groove is less than 90°.

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