A coffee grinder

Abstract

This utility model relates to the field of grinding equipment, specifically a coffee grinder. The coffee grinder includes a body and a coffee hopper. An outer grinding disc and an inner grinding disc are installed inside the body. The outer grinding disc surrounds the outer periphery of the inner grinding disc. An adjusting wheel is fixedly installed at the bottom of the coffee hopper, and the adjusting wheel can rotate synchronously with the coffee hopper. The outer grinding disc is movably connected to the inner side of the adjusting wheel, and the rotation of the adjusting wheel can drive the outer grinding disc to move up and down. The coffee grinder provided by this utility model has the advantage of convenient adjustment of the grinding coarseness.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment, and in particular to a coffee grinder. Background Technology

[0002] Existing coffee grinders generally have the function of adjusting the grind size and anti-static function.

[0003] For example, patent document CN119632430B discloses a blade adjusting device for a coffee grinder and the coffee grinder thereof, belonging to the technical field of bean processing. The blade adjusting device includes a grinding support, a lower blade assembly and an upper blade assembly adapted to the lower blade assembly are installed in the grinding support, and an adjusting member is also included. The adjusting member and the upper blade assembly are threadedly connected and engaged. Rotating the adjusting member can drive the upper blade assembly to move axially, thereby adjusting the distance between the upper blade and the lower blade.

[0004] For example, patent document CN219920903U discloses a coffee bean grinder, including a base and a bean container. The base has a receiving box on the left side and a support frame on the right side. The upper part of the support frame is fixed to the housing. The bean container has a powder box on the upper part and a cover on the upper part of the powder box. The lower part of the housing has a dispensing nozzle and a plasma generator on the upper part of the dispensing nozzle.

[0005] However, adjusting the grinding coarseness is inconvenient in the above-mentioned techniques.

[0006] Therefore, a coffee grinder is proposed to solve the above-mentioned technical problems. Utility Model Content

[0007] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a coffee grinder with the advantage of convenient adjustment of grinding coarseness.

[0008] The technical solution adopted by this utility model to solve the problem is: a coffee grinder, including: a machine body and a coffee hopper, wherein an outer grinding disc and an inner grinding disc are installed in the machine body, the outer grinding disc surrounds the outer periphery of the inner grinding disc, and an adjusting wheel is fixedly installed at the bottom of the coffee hopper, the adjusting wheel being able to rotate synchronously with the coffee hopper; the outer grinding disc is movably connected to the inner side of the adjusting wheel, and the rotation of the adjusting wheel can drive the outer grinding disc to move up and down.

[0009] As a further improvement to the above technical solution, the machine body includes an outer shell and a powder receiving box. The top of the outer shell is provided with an installation ring, and the bottom of the bean hopper is inserted into the installation ring. The inner wall of the installation ring is provided with a limiting block and multiple guide rods. The bottom of the bean hopper is provided with an avoidance notch and multiple guide grooves. The guide rods are adapted to the guide grooves, and the limiting block is adapted to the avoidance notch.

[0010] As a further improvement to the above technical solution, the machine body includes an adjustment component and a grinding chamber; the adjustment component includes a movable part, and the outer grinding disc is fixedly installed inside the movable part; the adjustment wheel is rotatably installed on the outside of the grinding chamber, and the movable part is installed on the inside of the grinding chamber; the movable part is provided with a limiting part, and the grinding chamber is provided with a limiting groove, the limiting part being adapted to the limiting groove; the limiting part is provided with an outwardly protruding guide block, the inner side of the adjustment wheel is provided with an internal thread, and the guide block passes through the limiting groove and engages with the internal thread.

[0011] As a further improvement to the above technical solution, the bottom of the adjusting wheel is provided with a plurality of grooves arranged in a ring array, and the grinding chamber is provided with elastic contacts, which abut against the grooves.

[0012] As a further improvement to the above technical solution, the top of the adjusting wheel is provided with multiple inserts, and the bottom of the bean hopper is provided with multiple insertion holes, and the inserts are inserted into the corresponding insertion holes.

[0013] As a further improvement to the above technical solution, the machine body also includes a transmission assembly, which includes a motor. The top of the motor is provided with a housing, and a gear set is provided inside the housing. The gear set is connected to the motor in a transmission manner, and an output shaft is driven on the gear set. The inner grinding disc is fixedly installed on the top of the output shaft.

[0014] As a further improvement to the above technical solution, a nut is threaded onto the top of the output shaft. The tightening direction of the nut is opposite to the rotation direction of the output shaft. A washer is provided between the nut and the inner grinding disc. The washer is irregularly shaped and one end is bent upwards.

[0015] As a further improvement to the above technical solution, the machine body also includes a plasma generator, and a discharge nozzle is provided on one side of the grinding chamber, with the probe of the plasma generator extending into the discharge nozzle.

[0016] As a further improvement to the above technical solution, a powder scraper is rotatably installed inside the grinding chamber, and the powder scraper is connected to the output shaft via a drive.

[0017] The beneficial effects of this utility model are as follows: This utility model has an adjusting wheel fixedly installed at the bottom. The adjusting wheel rotates synchronously with the bean hopper. The outer grinding disc is movably connected to the inner side of the adjusting wheel. The rotation of the adjusting wheel can drive the outer grinding disc to move up and down. The bean hopper drives the adjusting wheel to rotate and realizes the up and down adjustment of the outer grinding disc, thereby changing the gap between the inner and outer grinding discs and thus changing the grinding fineness. The operation is simple and convenient. Attached Figure Description

[0018] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the preferred embodiment of the present invention;

[0020] Figure 2 This is a structural view of the soybean bin and mounting ring in this utility model;

[0021] Figure 3 This is an exploded view of the present invention;

[0022] Figure 4 for Figure 3 A magnified structural diagram of part A in the middle;

[0023] Figure 5 This is a structural view of the movable component in this utility model;

[0024] Figure 6 This is a schematic diagram of the internal structure of the body in this utility model;

[0025] Figure 7 This is a cross-sectional structural diagram of the present invention;

[0026] Figure 8 This is a structural view of the adjusting wheel in this utility model.

[0027] In the diagram: 1. Machine body; 11. Outer shell; 12. Powder receiving box; 2. Bean hopper; 21. Guide groove; 22. Clearance notch; 23. Insertion hole; 3. Adjustment component; 31. Mounting ring; 32. Moving part; 321. Limiting part; 322. Guide block; 33. Outer grinding disc; 34. Adjusting wheel; 341. Internal thread; 35. Groove; 36. Insert; 37. Guide rod; 38. Limiting block; 4. Transmission component; 41. Motor; 42. Housing; 43. Gear set; 44. Output shaft; 45. Gasket; 46. Nut; 5. Inner grinding disc; 6. Grinding chamber; 61. Powder scraper; 62. Discharge nozzle; 63. Probe; 64. Elastic contact; 65. Limiting groove. Detailed Implementation

[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] Reference Figures 1 to 8 A coffee grinder includes: a body 1 and a coffee hopper 2. An outer grinding disc 33 and an inner grinding disc 5 are installed inside the body 1. The outer grinding disc 33 surrounds the outer periphery of the inner grinding disc 5. An adjusting wheel 34 is fixedly installed at the bottom of the coffee hopper 2. The adjusting wheel 34 can rotate synchronously with the coffee hopper 2. The outer grinding disc 33 is movably connected to the inner side of the adjusting wheel 34. The rotation of the adjusting wheel 34 can drive the outer grinding disc 33 to move up and down.

[0033] In a preferred embodiment, the machine body 1 includes a shell 11 and a powder receiving box 12. The top of the shell 11 is provided with a mounting ring 31, and the bottom of the bean hopper 2 is inserted into the mounting ring 31. The inner wall of the mounting ring 31 is provided with a limiting block 38 and multiple guide rods 37. The bottom of the bean hopper 2 is provided with an avoidance notch 22 and multiple guide grooves 21. The guide rods 37 are adapted to the guide grooves 21, and the limiting block 38 is adapted to the avoidance notch 22. Through the cooperation of the guide rods 37 and guide grooves 21, and the limiting block 38 and avoidance notch 22, the bean hopper 2 can be inserted into the mounting ring 31 at a specified angle, preventing deviations in the installation angle.

[0034] In a preferred embodiment, the machine body 1 includes an adjustment assembly 3 and a grinding chamber 6. The adjustment assembly 3 includes a movable part 32, and an outer grinding disc 33 is fixedly installed inside the movable part 32. An adjustment wheel 34 is rotatably installed on the outside of the grinding chamber 6, and the movable part 32 is installed on the inside of the grinding chamber 6. The movable part 32 is provided with a limiting part 321, and the grinding chamber 6 is provided with a limiting groove 65, the limiting part 321 and the limiting groove 65 being adapted to each other. The limiting part 321 is provided with an outwardly protruding guide block 322, and the inner side of the adjustment wheel 34 is provided with an internal thread 341. The guide block 322 passes through the limiting groove 65 and engages with the internal thread 341. In use, rotating the adjustment wheel 34 causes the guide block 322 to extend into the internal thread 341. With the interaction between the guide block 322 and the internal thread 341, the movable part 32 can move up and down, driving the outer grinding disc 33 to move up and down, which can change the gap between the inner grinding disc 5 and the outer grinding disc 33, thereby changing the grinding fineness.

[0035] In a preferred embodiment, the bottom of the adjusting wheel 34 is provided with a plurality of grooves 35 arranged in a circular array, and the grinding chamber 6 is provided with elastic contacts 64, which abut against the grooves 35. When the adjusting wheel 34 rotates, the elastic contacts 64 switch to abut against different grooves 35, thereby generating a rotating feel.

[0036] In a preferred embodiment, the top of the adjusting wheel 34 is provided with multiple inserts 36, and the bottom of the bean hopper 2 is provided with multiple insertion holes 23, with the inserts 36 inserted into the corresponding insertion holes 23. Rotating the bean hopper 2 causes the adjusting wheel 34 to rotate, thereby adjusting the grinding fineness, making the operation simple and convenient.

[0037] In a preferred embodiment, the body 1 further includes a transmission assembly 4, which includes a motor 41. The top of the motor 41 is provided with a housing 42, and a gear set 43 is provided inside the housing 42. The gear set 43 is connected to the motor 41 in a transmission manner. An output shaft 44 is installed on the gear set 43 in a transmission manner, and an inner grinding disc 5 is fixedly installed on the top of the output shaft 44.

[0038] In a preferred embodiment, a nut 46 is threaded onto the top of the output shaft 44. The tightening direction of the nut 46 is opposite to the rotation direction of the output shaft 44. A washer 45 is provided between the nut 46 and the inner grinding disc 5. The washer 45 is irregularly shaped and has one end bent upwards. By ensuring that the tightening direction of the nut 46 is opposite to the rotation direction of the output shaft 44, the nut 46 can be prevented from loosening when the motor 41 is working. At the same time, by providing the washer 45, the nut 46 and the output shaft 44 can be prevented from locking together and becoming impossible to disassemble. Furthermore, the irregular shape of the washer 45 and the upward bending of one end can agitate the beans at the outlet of the bean hopper 2, preventing the feeding from the bean hopper 2 from being obstructed.

[0039] In a preferred embodiment, the machine body 1 also includes a plasma generator, and a discharge nozzle 62 is provided on one side of the grinding chamber 6, with the probe 63 of the plasma generator extending into the discharge nozzle 62. This effectively removes static electricity, thereby reducing the problems of agglomeration and flying powder caused by static electricity during grinding.

[0040] In a preferred embodiment, a powder scraper 61 is rotatably installed inside the grinding chamber 6, and the powder scraper 61 is connected to the output shaft 44 via a transmission connection.

[0041] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A coffee grinder, comprising a body (1) and a coffee hopper (2), wherein an outer grinding disc (33) and an inner grinding disc (5) are installed inside the body (1), the outer grinding disc (33) surrounding the outer periphery of the inner grinding disc (5), characterized in that: The bottom of the bean hopper (2) is fixedly equipped with an adjusting wheel (34), which can rotate synchronously with the bean hopper (2); The outer grinding disc (33) is movably connected to the inner side of the adjusting wheel (34), and the rotation of the adjusting wheel (34) can drive the outer grinding disc (33) to move up and down.

2. A coffee grinder as described in claim 1, characterized in that: The machine body (1) includes an outer shell (11) and a powder receiving box (12). The top of the outer shell (11) is provided with an installation ring (31), and the bottom of the bean hopper (2) is inserted into the installation ring (31). The inner wall of the installation ring (31) is provided with a limiting block (38) and multiple guide rods (37). The bottom of the bean hopper (2) is provided with an avoidance notch (22) and multiple guide grooves (21). The guide rods (37) are adapted to the guide grooves (21), and the limiting block (38) is adapted to the avoidance notch (22).

3. A coffee grinder as described in claim 1, characterized in that: The body (1) includes an adjustment component (3) and a grinding chamber (6); The adjustment component (3) includes a movable part (32), and the outer grinding disc (33) is fixedly installed inside the movable part (32); The adjusting wheel (34) is rotatably mounted on the outside of the grinding chamber (6), and the movable part (32) is mounted on the inside of the grinding chamber (6); The movable part (32) is provided with a limiting part (321), and the grinding chamber (6) is provided with a limiting groove (65). The limiting part (321) and the limiting groove (65) are adapted to each other. The limiting part (321) is provided with an outwardly protruding guide block (322), and the inner side of the adjusting wheel (34) is provided with an internal thread (341). The guide block (322) passes through the limiting groove (65) and engages with the internal thread (341).

4. A coffee grinder as described in claim 3, characterized in that: The bottom of the adjusting wheel (34) is provided with a plurality of grooves (35) arranged in a ring array, and the grinding chamber (6) is provided with elastic contacts (64), which abut against the grooves (35).

5. A coffee grinder as described in claim 4, characterized in that: The top of the adjusting wheel (34) is provided with multiple inserts (36), and the bottom of the bean hopper (2) is provided with multiple insertion holes (23). The inserts (36) are inserted into the corresponding insertion holes (23).

6. A coffee grinder as described in claim 5, characterized in that: The machine body (1) also includes a transmission assembly (4), which includes a motor (41). The top of the motor (41) is provided with a housing (42), and a gear set (43) is provided inside the housing (42). The gear set (43) is connected to the motor (41) in a transmission. An output shaft (44) is installed on the gear set (43) in a transmission. The inner grinding disc (5) is fixedly installed on the top of the output shaft (44).

7. A coffee grinder as described in claim 6, characterized in that: The top of the output shaft (44) is threaded with a nut (46). The tightening direction of the nut (46) is opposite to the rotation direction of the output shaft (44). A washer (45) is provided between the nut (46) and the inner grinding disc (5). The washer (45) is irregularly shaped and one end is bent upward.

8. A coffee grinder as described in claim 7, characterized in that: The machine body (1) also includes a plasma generator, and a discharge nozzle (62) is provided on one side of the grinding chamber (6), and the probe (63) of the plasma generator extends into the discharge nozzle (62).

9. A coffee grinder as described in claim 7, characterized in that: A powder scraper (61) is rotatably installed inside the grinding chamber (6), and the powder scraper (61) is connected to the output shaft (44) for transmission.

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