Coffee grinding device with improved knob structure

Abstract

The coffee grinding device with the improved knob structure comprises a machine body, a grinding cavity is formed in the machine body, an upper cutter head and a lower cutter head are arranged in the grinding cavity, a lifting mechanism is connected to the upper cutter head, a mounting hole communicated with the outside is formed in the machine body, and a rotary knob is arranged in the mounting hole. One end of the lifting mechanism extends out of the mounting hole to be connected with a rotating seat, a groove is formed in the rotating seat, a plurality of positioning protrusions are arranged on the side wall of the groove at intervals, and the lifting mechanism is connected with limiting grooves matched with the positioning protrusions. And the rotating seat is linked with the lifting mechanism through the matching of the positioning bulge and the limiting groove under the action of external force. According to the rotary switch, the groove is formed in the rotary seat, the positioning protrusions are arranged on the inner side of the groove at intervals, the limiting groove is formed in the lifting mechanism, when the rotary seat is installed, only the positioning protrusions need to be limited in the limiting groove, the rotary seat can be assembled, and compared with an existing rotary switch, the rotary switch is easier and simpler to assemble.

Description

A coffee grinder with an improved knob structure Technical Field

[0001] This utility model particularly relates to a coffee grinding device with an improved knob structure. Background Technology

[0002] Existing grinding devices include a body with a grinding chamber containing an upper and lower cutting disc. A lifting mechanism is connected to the body, and a rotary switch is connected to the lifting mechanism. The rotary switch, via the lifting mechanism, moves the upper cutting disc closer to or further away from the lower cutting disc. The existing rotary switch includes a mounting hole in the body and a knob seat connected to the lifting mechanism. A linear transmission component is connected to the knob seat, and a stop position is provided around the edge of the mounting hole around the rotary seat. The linear transmission component drives the rotary seat to rotate relative to the stop position, thereby linking the lifting mechanism. During installation, one end of the rotary seat needs to be inserted into the mounting hole and connected to the lifting mechanism, with the end face of the rotary seat flush with the edge of the mounting hole. This structure makes assembly difficult. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a coffee grinding device with an improved knob structure.

[0004] To solve the aforementioned technical problems, this utility model adopts the following technical solution:

[0005] A coffee grinding device with an improved knob structure includes a body with a grinding chamber inside. The grinding chamber contains an upper blade and a lower blade. A lifting mechanism is connected to the upper blade. The body has a mounting hole communicating with the outside. One end of the lifting mechanism extends out of the mounting hole and is connected to a rotating seat. The rotating seat has a groove, and multiple positioning protrusions are spaced apart on the sidewall of the groove. The lifting mechanism is connected to a limiting groove that matches the positioning protrusions. Under external force, the rotating seat is linked to the lifting mechanism through the cooperation of the positioning protrusions and the limiting groove.

[0006] Preferably, the lifting mechanism includes a transmission component connected to the rotating seat, the transmission component is provided with a gear, the gear is meshed with a gear plate, and a tool holder for connecting to the upper cutter head is movably connected to the gear plate.

[0007] Preferably, the inner wall of the gear disc is provided with a threaded groove, and the tool holder is provided with a helical claw that mates with the threaded groove. When the gear disc rotates, it can drive the tool holder to move up and down.

[0008] Preferably, the transmission assembly includes a connecting rod connected to the gear, a base connected to the connecting rod, and a limiting groove disposed on the base.

[0009] Preferably, a protective retaining ring is engaged with the mounting hole, and the protective retaining ring has an opening for the base to move.

[0010] Preferably, the rotating seat and the positioning protrusion are integrally formed.

[0011] Preferably, the rotating base is provided with an indicator block.

[0012] The beneficial effects of this utility model are:

[0013] This application has a groove inside the rotary seat, and multiple positioning protrusions are spaced apart on the inner side of the groove. A limit groove is provided on the lifting mechanism. When installing the rotary seat, it is only necessary to limit the positioning protrusions in the limit groove, and the rotary seat is assembled. Compared with the existing rotary switches, its assembly is easier and simpler. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0015] Figure 1 is a schematic diagram of the structure of a coffee grinding device with an improved knob structure according to this application;

[0016] Figure 2 is a schematic diagram of the structure of a coffee grinding device with an improved knob structure according to this application.

[0017] Figure 3 is a schematic diagram of the structure of a coffee grinding device with an improved knob structure according to this application;

[0018] Figure 4 is a schematic diagram of the structure of a coffee grinding device with an improved knob structure according to this application.

[0019] Figure 5 is a schematic diagram of the structure of a coffee grinding device with an improved knob structure according to this application;

[0020] Figure 6 is a schematic diagram of a coffee grinding device with an improved knob structure according to this application. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0022] The orientation shown in the accompanying drawings should not be construed as limiting the specific protection scope of this utility model, but is only for reference and understanding of preferred embodiments. The product components shown in the drawings can be changed in position, increased in number, or simplified in structure.

[0023] The “connection” described in the specification and the “connection” relationship between the components shown in the accompanying drawings can be understood as a fixed connection, a detachable connection, or a connection that forms an integral unit; it can be a direct connection or a connection through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific circumstances and can derive different implementation methods such as screwing, riveting, welding, snap-fitting, or embedding to suitably replace the connection.

[0024] The directional terms such as up, down, left, right, top, and bottom mentioned in the instruction manual and the directions shown in the attached drawings indicate that the components can directly contact each other or contact each other through other features; for example, "up" can mean directly above or diagonally above, or it simply means above other objects; other directions can be understood by analogy.

[0025] The materials used to manufacture solid-shaped parts as shown in the specification and drawings may be metallic, non-metallic, or other synthetic materials. The machining processes used for solid-shaped parts may include stamping, forging, casting, wire cutting, laser cutting, injection molding, CNC milling, 3D printing, machining, etc. Those skilled in the art may adapt or combine the above materials and manufacturing processes according to different processing conditions, costs, and precision requirements.

[0026] A coffee grinding device with an improved knob structure, as shown in Figures 1-5, includes a body 1, a grinding chamber inside the body 1, an upper blade 2 and a lower blade 3 arranged inside the grinding chamber, a lifting mechanism connected to the upper blade 2, a mounting hole 4 communicating with the outside on the body 1, one end of the lifting mechanism extending out of the mounting hole 4 and connected to a rotating seat 5, a groove 6 inside the rotating seat 5, a plurality of positioning protrusions 7 spaced apart on the side wall of the groove 6, a limiting groove 8 adapted to the positioning protrusions 7 connected to the lifting mechanism, and the rotating seat 5, under the action of external force, is linked to the lifting mechanism through the cooperation of the positioning protrusions 7 and the limiting groove 8.

[0027] Furthermore, the lifting mechanism includes a transmission assembly connected to the rotating seat 5, the transmission assembly is provided with a gear 92, the gear 92 is meshed with a gear disc 93, and the gear disc 93 is movably connected to a tool holder 94 for connecting to the upper cutter disc 2.

[0028] Furthermore, the inner wall of the gear disk 93 is provided with a threaded groove 921, and the tool holder 94 is provided with a helical claw 941 that cooperates with the threaded groove 921. When the gear disk 93 rotates, it can drive the tool holder 94 to move up and down.

[0029] Furthermore, the transmission assembly includes a connecting rod 11 connected to the gear 92, a base 12 connected to the connecting rod 11, and a limiting groove 8 disposed on the base 12.

[0030] Furthermore, a protective retaining ring 41 is engaged with the mounting hole 4, and the protective retaining ring 41 has an opening 410 for the base 12 to move.

[0031] Furthermore, the rotating seat 5 and the positioning protrusion 7 are integrally formed.

[0032] Furthermore, an indicator block 51 is provided on the rotating seat 5.

[0033] The working principle of this utility model is as follows:

[0034] When the user adjusts the grinding coarseness, the rotating base 5 drives the lifting mechanism to move up and down, which in turn drives the upper cutter disc 2 to move up and down within the grinding chamber, adjusting the distance between the upper cutter disc 2 and the lower cutter disc 3, thereby adjusting the grinding coarseness. The main improvement of this application lies in the modification of the knob structure. One end of the lifting mechanism extends out of the mounting hole 4. This application has a groove 6 inside the rotating base 5, and multiple positioning protrusions 7 are spaced apart on the inner side of the groove 6. A limiting groove 8 is provided on the lifting mechanism. When installing the rotating base 5, it is only necessary to limit the positioning protrusions 7 within the limiting groove 8, and the rotating base 5 is assembled. Compared with existing rotary switches, its assembly is easier and simpler.

[0035] Based on the above technical solution, as Example 1, the lifting mechanism is illustrated by taking the structural cooperation of the transmission component, the gear 93, and the gear 92 as an example to illustrate the design concept of this application. The rotating seat 5 is installed on the transmission component, the gear 92 is connected to the transmission component, and the gear 93 is meshed with the gear 92. Therefore, when the rotating seat 5 rotates, it will drive the gear 92 to rotate through the transmission component. During the meshing process of the gear 93 with the gear 92, the tool holder 94 is driven to move up and down. The upper tool holder 2 is connected to the tool holder 94, so the distance between the upper tool holder 2 and the lower tool holder 3 can be adjusted.

[0036] Based on the above technical solution, regarding the coordination between the tool holder 94 and the gear disk 93 to achieve vertical movement, a helical claw 941 can be provided on the tool holder 94, and a threaded groove 921 can be provided on the inner wall of the gear disk 93. When the gear 92 drives the gear disk 93 to rotate, the gear disk 93 drives the tool holder 94 to move up and down. Since this part belongs to a mature technical means in this field, its working principle will not be described in detail here.

[0037] Based on the above technical solution, regarding the structural fit of the transmission components, a connecting rod 11 is connected to the gear 92. A base 12 is connected to the end of the connecting rod 11 facing away from the gear 92. A limiting groove 8 is set on the outer periphery of the base 12. That is, when the rotating seat 5 is installed on the base 12, the positioning protrusion 7 on the rotating seat 5 is limited within the limiting groove 8 of the base 12. Therefore, when the user rotates the rotating seat 5, the rotating seat 5 drives the base 12 to rotate, thereby linking the gear 92 through the connecting rod 11. As a preferred embodiment, the rotating seat 5 and the positioning protrusion 7 are integrally formed.

[0038] Based on the above technical solution, a protective retaining ring 41 is snapped onto the mounting hole 4, and an opening 410 is provided on the protective retaining ring 41 for the base 12 to move. That is to say, when the user rotates the rotating seat 5, the rotating seat 5 drives the base 12 to move within the opening 410.

[0039] Based on the above technical solution, this application provides multiple gear positions around the edge of the mounting hole 4. An indicator block 51 is connected to the rotating base 5. When the rotating base 5 rotates, it drives the indicator block 51 to rotate, and the indicator block 51 points to the corresponding gear position. The gear positions can be set to 1, 2, 3, etc. Different spacing between the upper blade 2 and the lower blade 3 results in different coarseness of the ground coffee beans. Corresponding gear positions can be set on the machine body 1 according to different coarseness. Since this part belongs to the mature technical means in this field, its working principle will not be described in detail here, and the structure of the gear positions is not shown in the figure.

[0040] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A coffee grinding device with an improved knob structure, characterized in that, The device includes an organic body (1), which has a grinding chamber. The grinding chamber is equipped with an upper cutter disc (2) and a lower cutter disc (3). The upper cutter disc (2) is connected to a lifting mechanism. The organic body (1) has an installation hole (4) that communicates with the outside. One end of the lifting mechanism extends out of the installation hole (4) and is connected to a rotating seat (5). The rotating seat (5) has a groove (6) inside. Multiple positioning protrusions (7) are spaced apart on the side wall of the groove (6). The lifting mechanism is connected to a limiting groove (8) that matches the positioning protrusions (7). Under the action of external force, the rotating seat (5) is linked to the lifting mechanism through the cooperation of the positioning protrusions (7) and the limiting groove (8).

2. A coffee grinding device with an improved knob structure according to claim 1, characterized in that, The lifting mechanism includes a transmission component connected to the rotating seat (5), a gear (92) is provided on the transmission component, a gear plate (93) is meshed on the gear (92), and a tool holder (94) for connecting the upper cutter head (2) is movably connected on the gear plate (93).

3. A coffee grinding device with an improved knob structure according to claim 2, characterized in that, The inner wall of the gear disc (93) is provided with a threaded groove (921), and the tool holder (94) is provided with a helical claw (941) that cooperates with the threaded groove (921). When the gear disc (93) rotates, it can drive the tool holder (94) to move up and down.

4. A coffee grinding device with an improved knob structure according to claim 2, characterized in that, The transmission assembly includes a connecting rod (11) connected to the gear (92), a base (12) connected to the connecting rod (11), and a limiting groove (8) disposed on the base (12).

5. A coffee grinding device with an improved knob structure according to claim 1, characterized in that, A protective retaining ring (41) is snapped into the mounting hole (4), and the protective retaining ring (41) has an opening (410) for the base (12) to move.

6. A coffee grinding device with an improved knob structure according to claim 1, characterized in that, The rotating seat (5) and the positioning protrusion (7) are integrally formed.

7. A coffee grinding device with an improved knob structure according to claim 1, characterized in that, An indicator block (51) is provided on the rotating base (5).

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