Multifunctional coffee grinder
By introducing a limiting clamp and guide rail system into the coffee grinder, combined with a motor-driven feeding component, the problem of existing coffee grinders being unable to adapt to different cup diameters is solved. This achieves precise quantitative feeding and uniform drop of coffee powder, improving ease of use and grinding efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOXING SHANGYU SHUNXING ELECTRICAL APPLIANCES CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-17
AI Technical Summary
Existing coffee grinders lack a receiving structure that adapts to different cup diameters, leading to problems such as coffee powder spillage and inconvenience in catching.
A multi-functional coffee grinder was designed, which adopts a limiting clamp and guide rail system to adapt to cups of different diameters. Combined with a motor-driven feeding component, it can achieve quantitative feeding and scraper cleaning to ensure that coffee powder falls evenly into the cup.
It achieves precise quantitative feeding and uniform pouring of coffee powder, avoiding powder spillage and the fatigue of manual collection, thus improving the user experience and grinding efficiency.
Smart Images

Figure CN224125784U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coffee machine technology, and in particular to a multi-functional coffee grinder. Background Technology
[0002] With the popularization of coffee culture, coffee grinder technology has been continuously iterating and innovating. Early manual grinders relied on human power, using gear transmission to drive the grinding parts to rotate, in order to meet the needs of small-batch grinding. Modern electric grinders, on the other hand, are driven by motors and use a variety of grinding structures such as blade type, conical blade type, and flat blade type, utilizing high-speed rotation or precision meshing to pulverize coffee beans.
[0003] A coffee grinder mainly consists of a power unit, grinding components, a powder hopper, and an adjustment device. The power unit is generally an electric motor that provides power for grinding. The grinding components are the core part, including blade-type, conical-blade-type, and flat-blade-type grinders. Blade-type grinders rely on high-speed rotating sharp blades to crush coffee beans. Conical-blade grinders use the relative rotation of two conical grinding discs to shear and grind coffee beans. Flat-blade grinders use the staggered motion of parallel grinding discs to achieve grinding. During the grinding process, coffee beans enter through the feed inlet and are crushed by contact with the grinding components under the power drive. The adjustment device can control the spacing between the grinding components to change the coarseness of the coffee powder. The ground coffee powder falls into the powder hopper for use.
[0004] Most coffee grinders on the market today have relatively simple functions and lack a receiving structure that can accommodate different cup diameters. This leads to problems such as coffee powder spillage and inconvenience when users use different sized containers such as mugs and travel mugs to collect coffee powder. Therefore, a multi-functional coffee grinder is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a multi-functional coffee grinder, which aims to improve the problem of the lack of a receiving structure that adapts to the cup diameter in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A multi-functional coffee grinder includes a base, a housing fixedly connected to the top of the base, a material storage box fixedly connected to the top of the housing, a feeding assembly inside the material storage box, a guide rail fixedly connected to the inside of the housing, a sliding block slidably connected inside the guide rail, a fixed plate fixedly connected to the outside of the sliding block, a fixed box fixedly connected to the top of the fixed plate, a slider slidably connected inside the fixed box, a limit clamp fixedly connected to the outside of the slider, a telescopic column fixedly connected to the end of the slider away from the limit clamp, and a spring sleeved on the outside of the telescopic column.
[0008] As a further description of the above technical solution:
[0009] A cup is provided at the top of the fixing plate, and the limiting clamp is in contact with the outside of the cup;
[0010] As a further description of the above technical solution:
[0011] The end of the telescopic column away from the slider is fixedly connected to the inside of the fixed box, and the outer side of the limiting clamp is arc-shaped;
[0012] As a further description of the above technical solution:
[0013] One end of the spring is fixedly connected to the end of the slider away from the limiting clamp, and the other end of the spring is fixedly connected to the inside of the fixing box;
[0014] As a further description of the above technical solution:
[0015] The feeding assembly includes a feeding plate, which is rotatably connected to the inside of the storage box. A transmission gear is fixedly connected to the rear end of the feeding plate. A motor is fixedly connected to the top end of the housing. A rotating ring one is rotatably connected to the outside of the storage box. The outside of the rotating ring one is meshed with the outside of the transmission gear. A transmission rod is fixedly connected to the outside of the rotating ring one. A rotating ring two is fixedly connected to the top end of the transmission rod. A scraper is fixedly connected to the outside of the rotating ring two.
[0016] As a further description of the above technical solution:
[0017] The scraper is slidably connected to the inner wall of the storage box, and the drive end of the motor is fixedly connected to the rear end of the transmission gear.
[0018] As a further description of the above technical solution:
[0019] The bottom end of the rotating ring 2 is slidably connected to the top end of the storage box, and the outside of the transmission rod is slidably connected to the outside of the storage box;
[0020] As a further description of the above technical solution:
[0021] The top end of the rotating ring two is slidably connected to a sealing cap, and the front end of the housing is fixedly connected to a feed pipe.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, coffee powder is fed through the feeding pipe. The operator places the cup between the limiting clamps. The limiting clamps can adapt to different cup diameters. The spring pushes the slider to fix the cup in place. The guide rail drives the sliding block to move until the detector detects that the cup has reached the designated position and then stops. This process ensures that the cup is accurately positioned and that the powder falls evenly into the cup, avoiding powder falling and hand fatigue from manual handling, thus optimizing the receiving experience.
[0024] 2. In this invention, after the operator opens the sealed cover and puts in coffee beans, they start the motor. The motor drives the transmission gear to rotate the feeding plate, achieving quantitative feeding. Simultaneously, the transmission gear drives the rotating ring, transmission rod, and rotating ring II to rotate, causing the scraper to scrape against the inner wall of the storage box. This process not only avoids powder adhesion but also acts as a pusher, effectively reducing blockages, ensuring smooth feeding, and precisely controlling the amount of coffee beans entering the grinding stage, thus improving the quality and efficiency of coffee grinding. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of the multifunctional coffee grinder proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the housing of the multifunctional coffee grinder proposed in this utility model;
[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0028] Figure 4 This is a schematic diagram of the rotating ring 2 of the multifunctional coffee grinder proposed in this utility model.
[0029] Legend:
[0030] 1. Base; 2. Housing; 3. Feed tube; 4. Storage box; 5. Guide rail; 6. Sliding block; 7. Fixing plate; 8. Fixing box; 9. Telescopic column; 10. Spring; 11. Slider; 12. Limiting clamp; 13. Cup; 14. Rotating ring one; 15. Motor; 16. Transmission gear; 17. Transmission rod; 18. Feed plate; 19. Rotating ring two; 20. Scraper; 21. Sealing cover. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figures 1 to 3 This utility model provides an embodiment of a multi-functional coffee grinder, including a base 1. The base 1 provides a stable support foundation for the entire coffee grinder. The base 1 is made of high-strength engineering plastic material and has an anti-slip rubber pad on the bottom, which can effectively prevent the grinder from shifting due to vibration during operation, ensuring the stability and safety of the grinding process. A shell 2 is fixedly connected to the top of the base 1. The shell 2 serves as the main frame of the grinder. A storage box 4 is fixedly connected to the top of the shell 2. The storage box 4 is used to store coffee beans. It is made of transparent food-grade plastic material, which allows users to easily observe the remaining amount of coffee beans inside and reasonably arrange the adding time. It also has a large capacity to meet the needs of multiple uses. The storage box 4 is equipped with a feeding component, which is a key structure for controlling the coffee beans entering the grinding process. It can accurately adjust the feeding speed and quality of coffee beans, thereby affecting the quality and efficiency of coffee grinding.
[0033] The housing 2 is internally fixedly connected to a guide rail 5, and internally slidably connected to a sliding block 6. Externally fixedly connected to the sliding block 6 is a fixing plate 7. The guide rail 5 provides a precise sliding track for the sliding block 6, which can slide flexibly on the guide rail 5. Through its connection with the fixing plate 7, the position of the fixing plate 7 can be adjusted, thereby driving the movement of components such as the limiting clamp 12 on the fixing plate 7 to adapt to the placement requirements of cups 13 of different sizes. The fixing plate 7 serves as an intermediate carrier connecting the sliding block 6 and other components, playing a crucial role. Its structure is robust and can stably fix components such as the fixing box 8, ensuring that there will be no loosening or displacement during use, thus guaranteeing the stability and reliability of the entire device.
[0034] A fixed box 8 is fixedly connected to the top of the fixed plate 7. A slider 11 is slidably connected inside the fixed box 8. A limit clamp 12 is fixedly connected to the outside of the slider 11. A telescopic column 9 is fixedly connected to the end of the slider 11 away from the limit clamp 12. A spring 10 is sleeved on the outside of the telescopic column 9. The slider 11 can slide flexibly inside the fixed box 8. Through the cooperation of the telescopic column 9 and the spring 10, the telescopic control of the limit clamp 12 is realized, thereby adaptively adjusting according to the size of the cup 13, ensuring that the limit clamp 12 can fit tightly against the outside of the cup 13. The main function of the limit clamp 12 is to fix the cup 13 and prevent it from shaking or tipping over due to vibration during the grinding process. Its external arc design matches the common shape of the cup 13, providing a larger contact area and increasing... The cup 13 has a strong fixing effect, and its curved surface is wrapped with soft rubber, which not only protects the cup 13 from scratches but also increases friction, making the fixing more secure. The telescopic column 9 can telescopically move under the action of the spring 10. Through its own telescopic movement, it drives the slider 11 and the limiting clamp 12 to move, so as to flexibly adapt to cups 13 of different sizes and ensure that the limiting clamp 12 can always play a good fixing role for the cup 13. The spring 10 provides elastic restoring force for the telescopic column 9. When the cup 13 is placed in the limiting clamp 12, the spring 10 is compressed, and the resulting elastic force makes the limiting clamp 12 tightly clamp the cup 13, ensuring that the cup 13 remains stable during the grinding process. When the cup 13 is removed, the spring 10 returns to its original shape, driving the limiting clamp 12 to reset, which is convenient for the next use.
[0035] A cup 13 is mounted on the top of the fixing plate 7. The cup 13 is used to receive the ground coffee powder. It is placed on the fixing plate 7 and fixed by the limiting clip 12 to ensure that it will not move due to vibration during the grinding process, ensuring that the coffee powder falls accurately into the cup, avoiding spillage, waste, and cleaning trouble. The limiting clip 12 is in contact with the outside of the cup 13. Through the elasticity of the spring 10 and the extension and retraction of the telescopic column 9, the limiting clip 12 can fit tightly against the outer wall of the cup 13, fixing the cup 13 in all directions. It can achieve a stable fixing effect regardless of the size of the cup 13. The telescopic column 9 is away from the sliding... One end of block 11 is fixedly connected to the inside of the fixed box 8, providing a fixed support point for the telescopic column 9, enabling it to move stably within the fixed box 8. This ensures that the limiting clamp 12 can properly fix the cup 13. One end of spring 10 is fixedly connected to the end of slider 11 away from the limiting clamp 12, and the other end is fixedly connected to the inside of the fixed box 8. Through its own elastic deformation, spring force is generated to push slider 11 and limiting clamp 12 to move, thereby clamping and releasing the cup 13. This ensures that the limiting clamp 12 can automatically adjust according to the placement and removal of the cup 13.
[0036] Reference Figure 1 and Figure 4The feeding assembly includes a feeding plate 18, which is externally rotatably connected to the inside of the storage box 4. The feeding amount of coffee beans is controlled by its own rotation. A motor 15 is fixedly connected to the top of the housing 2, and a transmission gear 16 is fixedly connected to the rear end of the feeding plate 18. The transmission gear 16 rotates under the drive of the motor 15, thereby driving the feeding plate 18 to rotate, realizing automatic control of the feeding amount. Its tooth shape is precisely designed, and the meshing with the rotating ring 14 is tighter, the transmission is more stable, and it can ensure that the feeding plate 18 rotates at a predetermined speed and angle, ensuring the accuracy and stability of the feeding.
[0037] The motor 15 serves as the power source for the entire feeding assembly, providing power to components such as the transmission gear 16 and the rotating ring 14. It adopts a high-performance DC motor 15, which has the advantages of stable speed, strong power, and low noise. It can precisely control the rotation speed according to the user's needs, thereby achieving precise adjustment of the amount of coffee beans fed to meet different grinding requirements. The external rotating ring 14 is connected to the storage box 4. The rotating ring 14 transmits the power of the motor 15 to the feeding plate 18 through meshing with the transmission gear 16. The external meshing connection between the rotating ring 14 and the external meshing connection of the transmission gear 16 can achieve stable power transmission, converting the rotation of the motor 15 into the rotation of the feeding plate 18. At the same time, the precise tooth profile design ensures the accuracy and reliability of the transmission, ensuring that the adjustment of the feeding amount can be accurately achieved.
[0038] A transmission rod 17 is fixedly connected to the outside of rotating ring 14. A rotating ring 29 is fixedly connected to the top of the transmission rod 17. A scraper 20 is fixedly connected to the outside of rotating ring 29. The transmission rod 17 transmits the rotation of rotating ring 14 to rotating ring 29. Rotating ring 29 is made of high-strength metal, has a robust structure, and remains stable during power transmission without deformation or breakage. This ensures that rotating ring 29 rotates at a predetermined speed and direction, thereby driving the scraper 20 to work normally. Rotating ring 29 rotates under the drive of the transmission rod 17, which in turn drives the scraper 20 to move around the material storage area. The inner wall of the storage box 4 is smoothed to reduce friction between the top of the storage box 4 and the sealing cover 21, ensuring smooth rotation. At the same time, the size of the rotating ring 19 is reasonably designed to fit tightly with the storage box 4, ensuring that the scraper 20 can effectively clean the coffee beans remaining on the inner wall of the storage box 4. Driven by the rotating ring 19, the scraper 20 slides along the inner wall of the storage box 4, scraping off the coffee beans remaining on the inner wall of the storage box 4, preventing coffee beans from accumulating on the inner wall of the storage box 4, ensuring that coffee beans can be fed smoothly, reducing coffee bean waste, and improving the utilization rate of coffee beans.
[0039] The drive end of motor 15 is fixedly connected to the rear end of transmission gear 16, providing stable power to transmission gear 16 so that it can rotate at a predetermined speed and direction, thereby driving the feeding plate 18 and other related components to work normally and achieve precise control of the coffee bean feeding amount. The bottom end of rotating ring 19 is slidably connected to the top of storage box 4. This connection method ensures that rotating ring 19 can rotate flexibly at the top of storage box 4 while remaining stable and not shaking or deviating, ensuring that scraper 20 can accurately slide along the inner wall of storage box 4 to effectively clean the coffee beans. The external part of transmission rod 17 is slidably connected to the outside of storage box 4, providing stable support and sliding track for transmission rod 17, so that it will not shake or shift during power transmission, ensuring The rotating ring 19 can stably receive power and drive the scraper 20 to work. The top of the rotating ring 19 is slidably connected to a sealing cap 21. The sealing cap 21 can prevent the coffee beans in the storage box 4 from getting damp or contaminated, and maintain the freshness and quality of the coffee beans. At the same time, when the rotating ring 19 rotates, the sealing cap 21 can fit tightly with the rotating ring 19 and will not affect the normal rotation of the rotating ring 19, ensuring the normal operation of the feeding component. The front end of the housing 2 is fixedly connected to the feeding pipe 3. The feeding pipe 3 is used to transport the ground coffee powder to the cup 13. Its interior is smooth and the pipe diameter is reasonably designed to ensure that the coffee powder passes through smoothly without clogging. At the same time, the length and angle of the feeding pipe 3 are carefully designed to ensure that the coffee powder falls accurately into the cup 13, avoiding spillage and improving the convenience and cleanliness of use.
[0040] Working principle: When the operator needs to grind coffee, the sealing cap 21 is removed from the top of the storage box 4, and then coffee beans are placed inside the storage box 4. Then the motor 15 is started, and the motor 15 drives the transmission gear 16 to rotate. At the same time, the feeding plate 18 rotates inside the storage box 4 with the rotation of the transmission gear 16, thereby achieving the effect of quantitative feeding. The rotation of the transmission gear 16 will drive the rotating ring 14 to rotate outside the storage box 4, so that the transmission rod 17 drives the rotating ring 19 to rotate at the top of the storage box 4. This causes the scraper 20 to scrape the inner wall of the storage box 4, avoiding powder adhesion and also playing a certain pushing effect, reducing the occurrence of blockage.
[0041] After the coffee is ground, the powder is fed through the feed tube 3. When the operator needs to receive the powder, the outside of the cup 13 is placed on the side close to the two limiting clamps 12. The two limiting clamps 12 can adapt to cups of different diameters. At the same time, the spring 10 will continuously push the slider 11 to slide, so that the limiting clamps 12 continuously restrict the position of the cup 13. At this time, the guide rail 5 will drive the sliding block 6 to slide until the detector at the front end of the housing 2 detects that the top of the cup 13 has reached the designated position. Then the guide rail 5 will stop driving the sliding block 6. At this time, the cup 13 will reach the designated position, ensuring that the powder from the feed tube 3 will fall evenly into the inside of the cup 13, avoiding the powder from falling and the fatigue of the hand when manually receiving it.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. Multifunction coffee grinder comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a housing (2), the top of the housing (2) is fixedly connected to a storage box (4), the storage box (4) is provided with a feeding component inside, the housing (2) is fixedly connected to a guide rail (5), the guide rail (5) is slidably connected to a sliding block (6), the sliding block (6) is fixedly connected to a fixing plate (7), the top of the fixing plate (7) is fixedly connected to a fixing box (8), the fixing box (8) is slidably connected to a slider (11), the slider (11) is fixedly connected to a limit clamp (12), the end of the slider (11) away from the limit clamp (12) is fixedly connected to a telescopic column (9), and the telescopic column (9) is sleeved with a spring (10).
2. The multi-functional coffee grinder according to claim 1, wherein: A cup (13) is provided at the top of the fixing plate (7), and the limiting clamp (12) is in contact with the outside of the cup (13).
3. The multi-functional coffee grinder according to claim 1, wherein: The end of the telescopic column (9) away from the slider (11) is fixedly connected to the inside of the fixed box (8), and the outside of the limiting clamp (12) is arc-shaped.
4. The multi-functional coffee grinder of claim 1, wherein: One end of the spring (10) is fixedly connected to the end of the slider (11) away from the limiting clamp (12), and the other end of the spring (10) is fixedly connected to the inside of the fixing box (8).
5. The multi-functional coffee grinder of claim 1, wherein: The feeding assembly includes a feeding plate (18), the outside of which is rotatably connected to the inside of the storage box (4), a transmission gear (16) is fixedly connected to the rear end of the feeding plate (18), a motor (15) is fixedly connected to the top of the housing (2), a rotating ring one (14) is rotatably connected to the outside of the storage box (4), the outside of the rotating ring one (14) is meshed with the outside of the transmission gear (16), a transmission rod (17) is fixedly connected to the outside of the rotating ring one (14), a rotating ring two (19) is fixedly connected to the top of the transmission rod (17), and a scraper (20) is fixedly connected to the outside of the rotating ring two (19).
6. The multi-functional coffee grinder according to claim 5, wherein: The scraper (20) is slidably connected to the inner wall of the storage box (4), and the drive end of the motor (15) is fixedly connected to the rear end of the transmission gear (16).
7. The multi-functional coffee grinder of claim 5, wherein: The bottom end of the rotating ring (19) is slidably connected to the top end of the storage box (4), and the outside of the transmission rod (17) is slidably connected to the outside of the storage box (4).
8. The multi-functional coffee grinder according to claim 5, characterized in that: The top of the rotating ring (19) is slidably connected to a sealing cap (21), and the front end of the housing (2) is fixedly connected to a feed pipe (3).