Lock catch structure and bean grinding coffee machine

Abstract

The utility model provides a lock catch structure and a bean grinding coffee machine, and relates to the technical field of household appliances, the lock catch structure is used for connecting a mounting shell and a bean grinding component, the mounting shell is provided with an inner circular cavity for accommodating the bean grinding component, the lock catch structure comprises a mounting part, a locking part and a locking part, comprising a first positioning groove formed in the inner circular cavity and a first guide unit arranged with the inner circular cavity as the center. The rotary buckle plate is mounted on the mounting shell and provided with a second positioning groove matched with the first positioning groove and a second guide unit matched with the first guide unit; the positioning part comprises a positioning flange arranged on the outer side of the bean grinding part, and the positioning flange is matched with the first positioning groove. The rotary buckle plate is installed on the installation shell, then the bean grinding component is placed in the inner circular cavity of the installation shell, the bean grinding component is fixed or loosened through staggering and alignment of the second positioning groove and the first positioning groove, the operation of assembling and disassembling the bean grinding component is simple, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, and more particularly to a latch structure and a bean grinder coffee machine. Background Art

[0002] Coffee is a widely popular beverage among the public. In addition to the type and quality of coffee beans affecting the quality of coffee, the quality of coffee powder also cannot be ignored. And the quality of coffee powder depends to a large extent on the choice of coffee grinding device.

[0003] Chinese invention patent with publication number CN107981728 B discloses a bean grinding device and a bean grinder coffee machine, including a grinding assembly and an adjusting assembly. The grinding assembly includes a bean grinding chamber, an outer grinding wheel and an inner grinding wheel. The outer grinding wheel and the inner grinding wheel are located inside the bean grinding chamber. The adjusting assembly includes at least two-stage adjusting mechanisms, and the at least two-stage adjusting mechanisms include a first adjusting mechanism and a second adjusting mechanism. The first adjusting mechanism is in track connection with the bean grinding chamber. The grinding assembly further includes an outer grinding wheel sleeve. The outer grinding wheel is fixedly installed in the outer grinding wheel sleeve. The outer grinding wheel sleeve includes a convex portion and a buckling portion. The convex portion is used for track connection with the second adjusting mechanism. The bean grinding chamber has a buckling groove, and the buckling portion is used for buckling in the buckling groove to limit the movement of the outer grinding wheel in the circumferential direction.

[0004] The above-mentioned bean grinder coffee machine realizes the relative fixation of the outer grinding wheel and the inner grinding wheel in the bean grinding chamber by pressing the pressing piece against the threaded track. When disassembling the grinding assembly, it is necessary to first loosen the screw locking the pressing piece and then loosen the pressing piece, which is troublesome to operate and time-consuming and laborious. Summary of the Utility Model

[0005] Based on this, in order to solve the problem of troublesome operation and time-consuming and laborious when disassembling the grinding assembly of the above-mentioned bean grinder coffee machine, the utility model provides a latch structure and a bean grinder coffee machine, and its specific technical solutions are as follows:

[0006] On the one hand, a latch structure for connecting an installation housing and a bean grinding component. An inner circular cavity for accommodating the bean grinding component is provided on the installation housing, including:

[0007] An installation part, including a first positioning groove provided in the inner circular cavity and a first guiding unit provided centered on the inner circular cavity;

[0008] A rotating buckle plate is installed on the installation housing, and is provided with a second positioning groove adapted to the first positioning groove and a second guiding unit adapted to the first guiding unit;

[0009] A positioning part, including a positioning flange provided on the outside of the bean grinding component, and the positioning flange is adapted to the first positioning groove.

[0010] The above-mentioned locking structure aligns the second positioning groove with the first positioning groove, installs the rotating buckle plate on the mounting shell, and then aligns the positioning flange of the grinding bean component with the second positioning groove and places it in the inner circular cavity of the mounting shell, then rotates the rotating buckle plate to make the second positioning groove staggered with the first positioning groove, and limits the displacement of the rotating buckle plate in the vertical direction by the clamping member to confine the grinding bean component in the inner circular cavity; in addition, by rotating the rotating buckle plate to align the second positioning groove with the first positioning groove, the grinding bean component can be taken out from the inner circular cavity, and the loading and unloading of the grinding bean component is simple, saving time and effort.

[0011] Furthermore, the first guiding unit includes at least two guiding arc grooves, and the second guiding unit is a guiding column adapted to the guiding arc grooves.

[0012] Furthermore, the positioning flange is narrow at the bottom and wide at the top as a whole, and includes a lower guide position and an upper orientation position, and the width of the upper orientation position is adapted to the width of the first positioning groove.

[0013] Furthermore, it also includes a space-avoiding unit, which includes a plurality of support columns arranged on the mounting shell and spaced along the center of the inner circular cavity, and a space-avoiding groove arranged on the rotating buckle plate and adapted to the support columns.

[0014] Furthermore, the first positioning groove includes at least two positioning rectangular grooves spaced apart along the center of the inner circular cavity.

[0015] Furthermore, the rotating buckle plate is provided with a raised handle.

[0016] On the other hand, a bean grinding coffee machine includes a mounting shell, a bean grinding component, and a locking structure.

[0017] Furthermore, a transmission connection port communicating with the inner circular cavity and a plurality of installation columns surrounding the transmission connection port are provided at the bottom of the installation shell.

[0018] Furthermore, the inner circular cavity of the mounting shell is provided with a mounting guide groove, and the bottom of the bean grinding component is provided with a mounting flange adapted to the mounting guide groove.

[0019] Furthermore, a guide opening is provided at the upper portion of the installation guide groove, and the angle range of the guide opening is 2° to 10°.

[0020] Further, the transmission component includes a transmission motor and a reduction gearbox assembly; the reduction gearbox assembly includes a first gear drivingly connected to the output shaft of the transmission motor, a second gear meshing with the first gear, a third gear hub-connected to the second gear, a fourth gear meshing with the third gear, a fifth gear hub-connected to the fourth gear, a sixth gear meshing with the fifth gear, a seventh gear meshing with the sixth gear, and a linkage member hub-connected to the seventh gear. The linkage member is used to output power torque and drive the grinding component to perform a grinding action; the first gear has 11 teeth, the second gear has 54 teeth, the third gear has 14 teeth, the fourth gear has 56 teeth, the fifth gear has 15 teeth, the sixth gear has 44 teeth, and the seventh gear has 17 teeth. Description of the Drawings

[0021] The present utility model can be further understood from the following description in conjunction with the drawings. The components in the drawings are not necessarily drawn to scale, but the emphasis is on showing the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0022] Figure 1 is an exploded view of the structure of the coffee bean grinder of an embodiment of the present utility model;

[0023] Figure 2 is a schematic structural view of the coffee bean grinder of an embodiment of the present utility model;

[0024] Figure 3 is a schematic structural view of the latch structure of an embodiment of the present utility model Figure 1 ;

[0025] Figure 4 is a schematic structural view of the latch structure of an embodiment of the present utility model Figure 2 ;

[0026] Figure 5 is a schematic structural view of the coffee bean grinder of an embodiment of the present utility model;

[0027] Figure 6 is a schematic structural view of the transmission component of an embodiment of the present utility model.

[0028] Description of the Reference Numerals:

[0029] 1. Installation housing; 2. Grinding component; 3. Installation part; 4. Rotating buckle plate; 5. Positioning part; 6. Clearance unit; 7. Latch structure; 8. Transmission component; 9. Fixed housing;

[0030] 11. Installation guide groove;

[0031] 101. Inner circular cavity; 102. Transmission connection port; 103. Mounting post

[0032] 21. Mounting flange

[0033] 31. First positioning groove; 32. First guiding unit

[0034] 321. Guiding arc groove

[0035] 41. Second positioning groove; 42. Second guiding unit; 43. Protruding handle

[0036] 421. Guiding post

[0037] 51. Positioning flange; 61. Support post; 62. Clearance groove

[0038] 81. Transmission motor; 82. Reducer assembly

[0039] 821. First gear; 822. Second gear; 823. Third gear; 824. Fourth gear; 825. Fifth gear; 826. Sixth gear; 827. Seventh gear; 828. Linkage Detailed implementation manners

[0040] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with its embodiments. It should be understood that the specific implementation manners described herein are only used to explain the present utility model and do not limit the protection scope of the present utility model.

[0041] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manners.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific implementation manners and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0043] In the present utility model, the so-called "first" and "second" do not represent specific quantities and sequences, but are only used for name distinction.

[0044] On the one hand, asFigure 1 and Figure 2 、 Figure 3 、 Figure 4 As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , a buckle structure in an embodiment of the present utility model is used to connect and install a housing 1 and a grinding member 2. An inner circular cavity 101 for accommodating the grinding member 2 is provided on the housing 1, and it includes:

[0045] An installation part 3, including a first positioning groove 31 provided in the inner circular cavity 101 and a first guiding unit 32 arranged centered on the inner circular cavity 101;

[0046] A rotating buckle plate 4 is installed on the housing 1, and is provided with a second positioning groove 41 adapted to the first positioning groove 31 and a second guiding unit 42 adapted to the first guiding unit 32;

[0047] A positioning part 5, including a positioning flange 51 provided on the outer side of the grinding member 2, and the positioning flange 51 is adapted to the first positioning groove 31.

[0048] For the above buckle structure, after aligning the second positioning groove 41 with the first positioning groove 31, the rotating buckle plate 4 is installed on the housing 1, and then after aligning the positioning flange 51 of the grinding member 2 with the second positioning groove 41, it is placed into the inner circular cavity 101 of the housing 1. Then, by rotating the rotating buckle plate 4 to stagger the second positioning groove 41 from the first positioning groove 31, and limiting the displacement of the rotating buckle plate 4 in the vertical direction through a pressing member, the grinding member 2 can be limited in the inner circular cavity 101; in addition, by rotating the rotating buckle plate 4 to align the second positioning groove 41 with the first positioning groove 31, the grinding member 2 can be taken out from the inner circular cavity 101. The operation of loading and unloading the grinding member 2 is simple, time-saving and labor-saving.

[0049] In one embodiment, the first guiding unit 32 includes at least two guiding arc grooves 321 arranged at intervals centered on the inner circular cavity 101, and the second guiding unit 42 is a guiding post 421 adapted to the guiding arc grooves 321. Specifically, the length between the two end points of the arc length of the guiding arc groove 321 is greater than the groove width of the first positioning groove 31. In this way, by using the guiding post 421 to move within the notch of the guiding arc groove 321, the rotation range of the rotating buckle plate 4 is limited.

[0050] In one embodiment, the positioning flange 51 is overall narrow at the bottom and wide at the top, including a lower guiding position and an upper positioning position, and the width of the upper positioning position is adapted to the groove width of the first positioning groove 31. In this way, through the lower guiding position, the grinding member 2 can be quickly guided into the first positioning groove 31, and the upper positioning position is used to ensure that the grinding member 2 cannot rotate within the inner circular cavity 101.

[0051] In one embodiment, it further includes a clearance unit 6. The clearance unit 6 includes a plurality of support columns 61 arranged at intervals along the center of the inner circular cavity 101 on the installation housing 1, and clearance grooves 62 arranged on the rotating fastener plate 4 and adapted to the support columns 61. In this way, the installation housing 1 is installed on the fixed housing 9 by using the support columns 61, thereby limiting the displacement of the rotating fastener plate 4 in the vertical direction.

[0052] In one embodiment, the central arc length of the guiding arc groove 321 is less than or equal to the central arc length of the clearance groove 62.

[0053] In one embodiment, the first positioning groove 31 at least includes two positioning rectangular grooves arranged at intervals along the center of the inner circular cavity 101. In this way, the positioning rectangular groove has a simple structure and is convenient for processing and design.

[0054] In one embodiment, it further includes a pressing member for limiting the displacement of the rotating fastener plate 4 in the vertical direction. In this way, the grinding component 2 can be limited within the inner circular cavity 101 through the pressing member.

[0055] In one embodiment, the rotating fastener plate 4 is provided with a protruding handle 43. In this way, the protruding handle 43 is used as the force application point of the rotating fastener plate 4, which is convenient for the implementation of the installation action or the disassembly action.

[0056] On the other hand, as Figure 1 and Figure 5 shown, a grinding coffee machine in an embodiment of the present invention includes an installation housing 1, a grinding component 2, and a locking structure 7. In this way, the installation housing 1 and the grinding component 2 are connected through the locking structure 7, and the grinding component 2 is fixed or loosened by staggering and aligning the second positioning groove 41 and the first positioning groove 31. The operation of loading and unloading the grinding component 2 from the installation housing 1 is simple, time-saving, and labor-saving.

[0057] In one embodiment, the bottom of the installation housing 1 is provided with a transmission connection port 102 communicating with the inner circular cavity 101, and a plurality of installation columns 103 surrounding the transmission connection port 102. In this way, the installation housing 1 is installed and positioned on the coffee machine housing through the installation columns 103, ensuring smooth transmission between the input end of the grinding component 2 arranged at the transmission connection port 102 and the transmission component.

[0058] In a specific embodiment, the grinding coffee machine further includes a fixed housing 9. The fixed housing 9 is provided with a third positioning groove adapted to the first positioning groove 31, a connection hole adapted to the support column 61, and a clearance position adapted to the protruding handle 43. In this way, the displacement of the rotating fastener plate 4 in the vertical direction is limited by passing a fastener through the connection hole and locking it to the support column 61, and the grinding component 2 can be limited within the inner circular cavity 101 by staggering the second positioning groove 41 and the first positioning groove 31.

[0059] In one embodiment, an installation guide groove 11 is provided in the inner circular cavity 101 of the installation housing 1, and an installation flange 21 adapted to the installation guide groove 11 is provided at the bottom of the bean grinding member 2. In this way, through the guiding and positioning of the installation flange 21 and the installation guide groove 11, and the positioning flange 51 being aligned with the first positioning groove 31, dual positioning of the entire bean grinding member 2 is achieved.

[0060] In one embodiment, a guiding opening is provided at the upper part of the installation guide groove 11, and the angular range of the guiding opening is 2° to 10°. In this way, the guiding opening prevents collisions from affecting the structural strength; at the same time, by limiting the angular range of the guiding opening, it facilitates the demolding operation during the injection molding of the installation housing 1.

[0061] As Figure 6 shown, in one embodiment, the transmission member 8 includes a transmission motor 81 and a reduction gearbox assembly 82; the reduction gearbox assembly 82 includes a first gear 821 drivingly connected to the output shaft of the transmission motor 81, a second gear 822 meshing with the first gear 821, a third gear 823 hub-connected to the second gear 822, a fourth gear 824 meshing with the third gear 823, a fifth gear 825 hub-connected to the fourth gear 824, a sixth gear 826 meshing with the fifth gear 825, a seventh gear 827 meshing with the sixth gear 826, and a linkage 828 hub-connected to the seventh gear 827, and the linkage 828 is used to output power torque and drive the bean grinding member 2 to perform a grinding action; the first gear 821 has 11 teeth, the second gear 822 has 54 teeth, the third gear 823 has 14 teeth, the fourth gear 824 has 56 teeth, the fifth gear 825 has 15 teeth, the sixth gear 826 has 44 teeth, and the seventh gear 827 has 17 teeth. In this way, through multi-stage gear transmission, the gear size is reduced, facilitating the placement of the reduction gearbox assembly 82 below the bean grinding member 2, using the linkage 828 as the rotation center to drive the inner grinding wheel of the bean grinding member 2 to rotate, and arranging the powder outlet channel below the grinding gap between the outer grinding wheel and the inner grinding wheel. The structure is compact, facilitating the reduction of the overall volume of the bean grinding coffee machine and improving the user experience.

[0062] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0063] The above embodiments only illustrate several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several variations and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A locking structure for connecting a mounting housing (1) and a bean grinding component (2), wherein the mounting housing (1) is provided with an inner circular cavity (101) for accommodating the bean grinding component (2), characterized in that: include: The mounting portion (3) comprises a first positioning groove (31) arranged in the inner circular cavity (101), and a first guide unit (32) arranged with the inner circular cavity (101) as the center; A rotating buckle plate (4) is mounted on the mounting housing (1) and is provided with a second positioning groove (41) adapted to the first positioning groove (31), and a second guide unit (42) adapted to the first guide unit (32); The positioning portion (5) comprises a positioning flange (51) arranged on the outside of the bean grinding component (2), and the positioning flange (51) is adapted to fit the first positioning groove (31).

2. A locking structure according to claim 1, characterized in that: The first guide unit (32) comprises at least two guide arc grooves (321), and the second guide unit (42) is a guide column (421) adapted to the guide arc grooves (321).

3. A locking structure according to claim 1, characterized in that: The positioning flange (51) is narrow at the bottom and wide at the top as a whole, and comprises a lower guide position and an upper orientation position, wherein the width of the upper orientation position matches the width of the first positioning groove (31).

4. A locking structure according to claim 1, characterized in that: It also includes a void avoidance unit (6), which includes a plurality of support columns (61) arranged on the mounting shell (1) and spaced along the center of the inner circular cavity (101), and a void avoidance groove (62) arranged on the rotating buckle plate (4) and adapted to the support columns (61).

5. A locking structure according to claim 1, characterized in that: The first positioning groove (31) comprises at least two positioning rectangular grooves spaced apart along the center of the inner circular cavity (101).

6. A locking structure according to claim 1, characterized in that: The rotating buckle plate (4) is provided with a raised handle (43).

7. A coffee bean grinding machine, characterized in that: It comprises a mounting shell (1), a bean grinding component (2), a transmission component (8), and a locking structure (7) as claimed in any one of claims 1 to 6.

8. The coffee bean grinding machine according to claim 7, characterized in that: The bottom of the installation shell (1) is provided with a transmission connection port (102) communicating with the inner circular cavity (101), and a plurality of installation columns (103) arranged around the transmission connection port (102).

9. The coffee bean grinding machine according to claim 7, characterized in that: The inner circular cavity (101) of the mounting shell (1) is provided with a mounting guide groove (11), and the bottom of the bean grinding component (2) is provided with a mounting flange (21) adapted to the mounting guide groove (11).

10. The coffee bean grinding machine according to claim 7, characterized in that: The transmission component (8) comprises a transmission motor (81) and a reduction box assembly (82); The reduction box assembly (82) comprises a first gear (821) drivingly connected to the output shaft of the transmission motor (81), a second gear (822) meshingly connected to the first gear (821), a third gear (823) connected to the hub of the second gear (822), a fourth gear (824) meshingly connected to the third gear (823), a fifth gear (825) connected to the hub of the fourth gear (824), a sixth gear (826) meshingly connected to the fifth gear (825), a seventh gear (827) meshingly connected to the sixth gear (826), and a linkage member (828) connected to the hub of the seventh gear (827), wherein the linkage member (828) is used to output power torque and drive the bean grinding component (2) to perform grinding action; The number of teeth of the first gear (821) is 11, the number of teeth of the second gear (822) is 54, the number of teeth of the third gear (823) is 14, the number of teeth of the fourth gear (824) is 56, the number of teeth of the fifth gear (825) is 15, the number of teeth of the sixth gear (826) is 44, and the number of teeth of the seventh gear (827) is 17.

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