Bean grinder capable of adjusting coffee grinding fineness

By controlling the transmission rod and the bevel gear meshing transmission adjustment threaded rod through the motor, the distance between the inner grinding disc and the rotating grinding knife is changed, which solves the problem that the bean grinder cannot adjust the coarseness of the coffee powder, realizes the diversity of coffee powder and impurity filtering, and meets the taste needs of different people.

CN223416106UActive Publication Date: 2025-10-10HAINAN ZHONGSHEN BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422671097.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-04
Publication Date
2025-10-10
Estimated Expiration
2034-11-04

AI Technical Summary

Technical Problem

Existing coffee bean grinders cannot adjust the coarseness of coffee powder and cannot meet the taste demands of different people.

Method used

The motor controls the transmission rod and the bevel gear meshing transmission, and the threaded rod is adjusted to drive the moving block to move, thereby changing the distance between the inner grinding disk and the rotating grinding knife, thereby adjusting the coarseness of the ground coffee beans and filtering impurities in the coffee beans through the filter component.

Benefits of technology

The coarseness of coffee powder can be adjusted according to personal taste preferences, which improves the diversity of coffee flavor and meets the needs of different groups of people, while filtering out impurities in coffee beans.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of coffee utensils, and discloses a bean grinder capable of adjusting coffee grinding fineness, which comprises a grinder body, a grinding tank is mounted on the front side of the grinder body, a charging tank is mounted at the bottom of the grinding tank, a mounting plate is fixedly connected to the top of the grinding tank, a pouring hopper is mounted at the top of the mounting plate, and a feeding hopper is mounted at the bottom of the pouring hopper. A top cover is slidably connected to the top of the pouring hopper, a first motor is fixedly connected to the top side of the top of the grinding tank, first transmission rods are fixedly connected to the left end and the right end of the first motor correspondingly, and first bevel gears are fixedly connected to the ends, away from the first motor, of the two first transmission rods correspondingly. According to the coffee bean grinding device, the threaded rod controls the moving block to move, then the distance between the inner grinding disc and the rotary grinding cutter is adjusted, the thickness of ground coffee beans can be adjusted, the sieve plate is fixed in the mounting plate, and impurities in the coffee beans are filtered out.
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Description

Technical Field

[0001] The utility model relates to the technical field of coffee appliances, in particular to a coffee bean grinder capable of adjusting the coarseness of coffee grinding. Background Art

[0002] Coffee is a beverage made from roasted coffee beans. Originating in Africa, it comes in varieties such as Arabica and Robusta. It is available in a wide variety of styles, including latte and cappuccino. Coffee has benefits such as refreshing the mind, promoting digestion, and serving as an antioxidant. Around the world, coffee shops are places for socializing and leisure, and coffee culture reflects the lifestyles of different regions.

[0003] A coffee bean grinder is an essential tool for coffee lovers. It can grind coffee beans into powder and is easy to operate. The grinder allows fresh coffee beans to release a rich aroma, laying the foundation for making a delicious cup of coffee. Whether it is for home use or professional coffee shops, it can play an important role.

[0004] The existing bean grinder can grind coffee beans into coffee powder through a grinding knife and a grinding disc, but the bean grinder lacks an adjustment structure, and thus cannot grind coffee powder of different coarsenesses. It cannot be adjusted according to personal taste preferences, which limits the diversity of coffee flavor and cannot meet the taste pursuits of different people. Therefore, a bean grinder with adjustable coffee grinding coarseness is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a coffee bean grinder with adjustable coffee grinding coarseness, aiming to improve the problem that the coffee bean grinder in the prior art cannot grind coffee powder of different coarsenesses.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The coffee bean grinder of claim 1, wherein the grinding tank is mounted on the front side of the grinding tank, the charging tank is mounted on the bottom of the grinding tank, the top of the grinding tank is fixedly connected to a mounting plate, the top of the mounting plate is mounted on a pouring hopper, the top of the pouring hopper is slidably connected to a top cover, the top side of the top of the grinding tank is fixedly connected to a motor 1, the left and right ends of the motor 1 are fixedly connected to a transmission rod 1, the ends of the two transmission rods 1 away from the motor 1 are fixedly connected to a bevel gear 1, the left and right sides of the interior of the grinding tank are rotatably connected to bevel gear 2, the two bevel gears 1 are respectively meshed with the two bevel gears 2, the interiors of the two bevel gears 2 are fixedly connected to threaded rods, the outer circumferences of the two threaded rods are threadedly connected to moving blocks, the two moving blocks are fixedly connected to an inner grinding disk on the opposite side, the inner bottom side of the grinding tank is fixedly connected to the motor 2, the output end of the motor 2 is fixedly connected to the transmission rod 2, the top of the transmission rod 2 is fixedly connected to a rotating grinding knife, and a filter assembly is provided inside the pouring hopper.

[0008] As a further description of the above technical solution:

[0009] The filter assembly includes a sieve plate, the sieve plate is slidably connected to the inner middle side of the mounting plate, the left and right sides of the sieve plate are fixedly connected to mounting blocks, the two mounting blocks are slidably connected to the left and right sides of the mounting plate respectively, and the left and right sides of the mounting plate are provided with fixing components, which are used to connect the sieve plate and the mounting plate;

[0010] As a further description of the above technical solution:

[0011] The fixing assembly includes a push rod, which is slidably connected to the inside of the mounting plate, one end of the push rod is fixedly connected to the cross plate, and the front and rear ends of the cross plate are rotatably connected to connecting rods, and the ends of the two connecting rods away from the cross plate are rotatably connected to sliders, and the two sliders are fixedly connected to a card block on the opposite side, and the opposite sides of the two sliders are fixedly connected to a spring;

[0012] As a further description of the above technical solution:

[0013] The upper and lower sides of the moving block are fixedly connected with partitions;

[0014] As a further description of the above technical solution:

[0015] A card slot is provided on both the left and right sides of the mounting block, and the two card blocks are slidably connected to the inside of the two card slots respectively;

[0016] As a further description of the above technical solution:

[0017] Slide grooves are provided on both the upper and lower sides of the interior of the machine body, and the two partitions are slidably connected to the interiors of the two slide grooves respectively;

[0018] As a further description of the above technical solution:

[0019] One end of the push rod away from the horizontal plate is fixedly connected to a push block;

[0020] As a further description of the above technical solution:

[0021] The interiors of the two sliding blocks are both slidably connected to sliding rods, and the two sliding blocks are respectively slidably connected to the outer peripheries of the two sliding rods.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the present invention, the motor 1 controls the rotation of the two transmission rods, and then the bevel gear 1 and the bevel gear 2 are engaged and driven, so that the threaded rod controls the movement of the moving block, thereby adjusting the distance between the inner grinding disk and the rotating grinding knife, thereby adjusting the coarseness of the ground coffee beans to suit people with different tastes.

[0024] 2. In the present invention, the rotation of the rotating rod is controlled by the horizontal plate, so that the rotating rod drives the slider to move, and the slider drives the card block to move. The card block is embedded in the card groove in the mounting block, and the sieve plate can be fixed in the mounting plate to filter impurities in the coffee beans. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a coffee bean grinder with adjustable coffee grinding fineness proposed in the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of a grinding tank of a coffee bean grinder with adjustable coffee grinding fineness proposed in the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of a clamping block of a coffee bean grinder with adjustable coffee grinding fineness proposed in the present invention;

[0028] Figure 4 This is a schematic structural diagram of a threaded rod of a coffee bean grinder with adjustable coffee grinding fineness proposed in the present invention.

[0029] Legend:

[0030] 1. Machine body; 2. Grinding jar; 3. Charging jar; 4. Mounting plate; 5. Dump hopper; 6. Top cover; 7. Sieve plate; 8. Push block; 9. Push rod; 10. Cross plate; 11. Connecting rod; 12. Slider; 13. Clamping block; 14. Sliding rod; 15. Spring; 16. Rotating grinding knife; 17. Inner grinding disc; 18. Motor 1; 19. Transmission rod 1; 20. Bevel gear 1; 21. Bevel gear 2; 22. Threaded rod; 23. Moving block; 24. Partition; 25. Slide; 26. Motor 2; 27. Transmission rod 2; 28. Mounting block; 29. ​​Clamping slot. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1 、 Figure 2 、 Figure 4The utility model provides a kind of embodiment of adjustable coffee grinding fineness of bean grinder, including body 1, the inside of body 1 is equipped with multiple electronic components, to control each motor operation, the front side of body 1 is equipped with grinding jar 2, grinding jar 2 is used to grind coffee bean into coffee powder, the bottom of grinding jar 2 is equipped with loading jar 3, loading jar 3 is used to load coffee powder, the top of grinding jar 2 is fixedly connected with mounting plate 4, the top of mounting plate 4 is equipped with pouring hopper 5, pouring hopper 5 is used to pour coffee bean, the top of pouring hopper 5 is slidably connected with top cover 6, top cover 6 is used to block outside impurity into pouring hopper 5, the top of grinding jar 2 is fixedly connected with motor one 18, motor one 18 is double output end motor, and specific model is YD90S-4, the left and right ends of motor one 18 are fixedly connected with transmission rod one 19, the end of two transmission rod one 19 away from motor one 18 is fixedly connected with bevel gear one 20, transmission rod one 19 is used to connect the output end of motor one 18 and bevel gear one 20, so that motor one 18 can control transmission rod one 19 rotation, to drive bevel gear one 20 rotation, the inside left and right sides of grinding jar 2 are rotatably connected with bevel gear two 21, two bevel gear one 20 are engaged with two bevel gear two 21 respectively, bevel gear one 20 and bevel gear two 21 are used to engage transmission, the inside of two bevel gear two 21 is fixedly connected with threaded rod 22, bevel gear two 21 is connected with threaded rod 22, so that bevel gear two 21 can drive threaded rod 22 rotation when rotating, the periphery of two threaded rods 22 is threadedly connected with moving block 23, threaded rod 22 is engaged with moving block 23, so that moving block 23 can be controlled to move when threaded rod 22 rotates, the upper and lower sides of moving block 23 are fixedly connected with baffle 24, the inside upper and lower sides of body 1 are equipped with sliding slot 25, two baffles 24 are slidably connected in the inside of two sliding slots 25 respectively, baffle 24 is used to prevent coffee bean from entering grinding jar 2, to prevent jamming threaded rod 22, the side of two moving blocks 23 is fixedly connected with inner grinding disc 17, the inside bottom side of grinding jar 2 is fixedly connected with motor two 26, the output end of motor two 26 is fixedly connected with transmission rod two 27, the top of transmission rod two 27 is fixedly connected with rotary grinding knife 16, motor two 26 is Y series alternating current asynchronous motor, and specific model is Y112M-4, is used to control rotary grinding knife 16 rotation, and rotary grinding knife 16 and inner grinding disc 17 are used to grind coffee bean.

[0033] Refer to Figure 1 - Figure 3 The inside of pouring hopper 5 is equipped with filter assembly, filter assembly includes sieve plate 7, sieve plate 7 is slidably connected in the inside middle side of mounting plate 4, sieve plate 7 is used to filter larger impurities in coffee bean, the sieve hole of sieve plate 7 is slightly larger than coffee bean, the left and right sides of sieve plate 7 are fixedly connected with mounting block 28, two mounting blocks 28 are slidably connected in the inside left and right sides of mounting plate 4 respectively, mounting block 28 is used to connect mounting plate 4 and sieve plate 7.

[0034] Reference Figure 1 - Figure 3 , the left and right sides of the interior of the mounting plate 4 are provided with fixing components, the fixing components are used to connect the sieve plate 7 and the mounting plate 4, the fixing components include a push rod 9, the push rod 9 is slidably connected to the inside of the mounting plate 4, one end of the push rod 9 is fixedly connected to the cross plate 10, the push rod 9 is connected to the cross plate 10, and the movement of the cross plate 10 can be controlled by the push rod 9, the end of the push rod 9 away from the cross plate 10 is fixedly connected to the push block 8, the push block 8 is used to facilitate the control of the movement of the push rod 9, the front and rear ends of the cross plate 10 are rotatably connected to the connecting rod 11, the two connecting rods 11 are rotatably connected to the slider 12 at one end away from the cross plate 10, the connecting rod 11 is used to connect the cross plate 10 and the slider 12, the connecting rod 11 can be controlled to rotate when the cross plate 10 moves, the inside of the two sliders 12 Both are slidably connected with a slide rod 14, and the two sliders 12 are slidably connected to the outer periphery of the two slide rods 14 respectively. The slide rod 14 is used to guide the movement of the slider 12. The two sliders 12 are fixedly connected with a block 13 on the opposite side. The block 13 is connected to the slider 12, and can drive the block 13 to move together when the slider 12 moves. The opposite side of the two sliders 12 is fixedly connected with a spring 15, and the spring 15 is used to provide a reset thrust. The spring 15 is made of 65Mn spring steel. Slots 29 are provided on the left and right sides of the mounting block 28. The two blocks 13 are slidably connected to the inside of the two slots 29 respectively. The block 13 is used to cooperate with the slot 29. By sliding the block 13 into the slot 29, the screen plate 7 can be provided with a limiting effect.

[0035] Working principle: When in use, press the push block 8 so that the push block 8 controls the push rod 9 to move, and the push rod 9 drives the cross plate 10 to move. When the cross plate 10 moves, it will control the two connecting rods 11 to rotate in opposite directions. When the two connecting rods 11 rotate, the slider 12 can be controlled to move along the slide rod 14. When the slider 12 moves along the slide rod 14, it will drive the card block 13 to move together and squeeze the spring 15. Then insert the mounting blocks 28 on the left and right sides of the sieve plate 7 into the mounting plate 4, and then release the push block 8. After the push block 8 loses its thrust, the spring 15 will also lose the thrust of the slider 12, thereby generating a reset motion to provide thrust to push the slider 12 to move, so that the slider 12 drives the card block 13 to move, and the card block 13 slides into the card slot 29 opened in the mounting block 28, so that the sieve plate 7 can be fixed in the mounting plate 4.

[0036] Then pour coffee beans into the pouring hopper 5, and then start the motor 18. The motor 18 controls the two bevel gears 20 to rotate. The bevel gear 1 20 is meshed with the bevel gear 2 21 to drive the bevel gear 21 to rotate. When the threaded rod 22 rotates, the moving block 23 is controlled to move, so that the moving block 23 drives the inner grinding disk 17 to move. The distance between the inner grinding disk 17 and the rotating grinding knife 16 is adjusted, so that coffee powder of different coarseness can be ground. Then start the motor 2 26, and the transmission rod 2 27 is controlled by the motor 2 26 to rotate, so that the transmission rod 27 controls the rotating grinding knife 16 to rotate, and the coffee beans are ground by the rotating grinding knife 16 and the inner grinding disk 17.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A coffee bean grinder with adjustable coffee grinding fineness, comprising a machine body (1), characterized in that: A grinding jar (2) is installed on the front side of the machine body (1), a charging jar (3) is installed on the bottom of the grinding jar (2), a mounting plate (4) is fixedly connected to the top of the grinding jar (2), a pouring hopper (5) is installed on the top of the mounting plate (4), a top cover (6) is slidably connected to the top of the pouring hopper (5), a motor (18) is fixedly connected to the top side of the top of the grinding jar (2), a transmission rod (19) is fixedly connected to the left and right ends of the motor (18), and a bevel gear (20) is fixedly connected to the ends of the two transmission rods (19) away from the motor (18), and the left and right sides of the interior of the grinding jar (2) are rotatably connected to the gears. Bevel gear 2 (21), the two bevel gears 1 (20) are respectively meshed with the two bevel gears 2 (21), the interiors of the two bevel gears 2 (21) are fixedly connected with threaded rods (22), the outer peripheries of the two threaded rods (22) are threadedly connected with moving blocks (23), the two moving blocks (23) are fixedly connected with inner grinding discs (17) on opposite sides, the inner bottom side of the grinding tank (2) is fixedly connected with motor 2 (26), the output end of motor 2 (26) is fixedly connected with transmission rod 2 (27), the top of transmission rod 2 (27) is fixedly connected with a rotating grinding knife (16), and a filter assembly is provided inside the mounting plate (4).

2. The coffee bean grinder with adjustable coffee grinding fineness according to claim 1, characterized in that: The filter assembly comprises a sieve plate (7), the sieve plate (7) being slidably connected to the inner middle side of the mounting plate (4), the left and right sides of the sieve plate (7) being fixedly connected with mounting blocks (28), the two mounting blocks (28) being slidably connected to the left and right sides of the inner side of the mounting plate (4), respectively, and the left and right sides of the inner side of the mounting plate (4) being provided with fixing assemblies, the fixing assemblies being used to connect the sieve plate (7) and the mounting plate (4).

3. The grinder with adjustable coffee grinding fineness according to claim 2, characterized in that: The fixing assembly includes a push rod (9), the push rod (9) is slidably connected to the inside of the mounting plate (4), one end of the push rod (9) is fixedly connected to a transverse plate (10), the front and rear ends of the transverse plate (10) are rotatably connected to connecting rods (11), the ends of the two connecting rods (11) away from the transverse plate (10) are rotatably connected to sliders (12), the two sliders (12) are fixedly connected to a clamping block (13) on the opposite side, and the two sliders (12) are fixedly connected to a spring (15) on the opposite side.

4. The grinder with adjustable coffee grinding fineness according to claim 1, characterized in that: The upper and lower sides of the moving block (23) are both fixedly connected with partitions (24).

5. The grinder with adjustable coffee grinding fineness according to claim 3, characterized in that: The left and right sides of the installation block (28) are both provided with card slots (29), and the two card blocks (13) are respectively slidably connected inside the two card slots (29).

6. The grinder with adjustable coffee grinding fineness according to claim 4, characterized in that: Slide grooves (25) are provided on both upper and lower sides of the interior of the machine body (1), and the two partitions (24) are slidably connected to the interiors of the two slide grooves (25).

7. The grinder with adjustable coffee grinding fineness according to claim 3, characterized in that: One end of the push rod (9) away from the transverse plate (10) is fixedly connected to a push block (8).

8. The grinder with adjustable coffee grinding fineness according to claim 3, characterized in that: The interiors of the two sliders (12) are both slidably connected to a slide rod (14), and the two sliders (12) are respectively slidably connected to the outer peripheries of the two slide rods (14).