Bean grinding device of coffee machine
By incorporating servo motors and snap-fit designs, the height of the coffee machine's grinding device can be adjusted and easily disassembled, solving the problems of adaptability and cleaning/maintenance of traditional devices, and improving the accuracy of coffee making and the maintainability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional coffee machine grinding mechanisms cannot accommodate coffee cups of different heights, resulting in inaccurate coffee grounds being dispensed and inconvenient cleaning and maintenance of the bean container.
The design incorporates a servo motor, threaded rod, connecting rod, and sliding block to achieve height adjustment of the cup holder, and is equipped with an anti-slip pad to stabilize the coffee cup; the snap-fit connector and sliding groove structure facilitates the installation and removal of the coffee bean holder.
It improves the accuracy of coffee grounds falling, prevents coffee cups from slipping or tipping over, and enhances the maintainability and ease of operation of the equipment.
Smart Images

Figure CN224070192U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coffee grinder technology, and more particularly to a coffee grinder device for a coffee machine. Background Technology
[0002] Because coffee contains caffeine, which can stimulate the nervous, cardiac, and respiratory systems, moderate coffee consumption can refresh the mind and reduce fatigue. In addition, caffeine has a diuretic effect, which can promote the excretion of excess sodium ions from the kidneys and blood, and has certain benefits for the cardiovascular system. Therefore, coffee has become a popular daily necessity. However, coffee powder products suffer from flavor loss. The higher the quality of single-origin coffee beans, the more the aroma will be lost within three days after grinding. Therefore, coffee grinders, also known as coffee grinders, have been introduced to the market.
[0003] Traditional coffee machines typically come with a fixed-height cup holder for the grinding mechanism. This design is not suitable for coffee cups of different heights and may result in coffee grounds not falling accurately into the cup. In addition, as the coffee grounds accumulate over time, impurities and grease can accumulate in the bean tray. Since the bean tray of traditional grinding machines is often a fixed design, it makes cleaning and maintenance quite inconvenient.
[0004] Therefore, those skilled in the art have provided a coffee grinding device for a coffee machine to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a coffee grinder for a coffee machine. Through the design of a servo motor, threaded rod, connecting rod, and sliding block, the height of the cup holder is flexibly adjustable to accommodate coffee cups of different sizes, ensuring accurate coffee powder distribution, reducing operational errors, and improving brewing precision. It is also equipped with an anti-slip pad to stabilize the coffee cup and prevent slippage or tipping during grinding. Furthermore, the snap-fit components and their corresponding sliding and snap-fit grooves make the installation and removal of the bean holder convenient, enhancing the maintainability of the equipment.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A coffee grinder includes a grinder, a bean holder, and multiple snap-fit components. The grinder has two first mounting slots on its lower front end. A servo motor is fixedly connected to the inner bottom surface of one of the first mounting slots. A threaded rod is installed inside the other first mounting slot. The upper end of the threaded rod is rotatably connected to the inner top surface of the first mounting slot. The output end of the servo motor is fixedly connected to the middle of the lower end of the threaded rod. A connecting rod is fixedly connected to the inner wall of the other first mounting slot. Sliding blocks are fitted onto the outer walls of both the connecting rod and the threaded rod. The outer wall of the threaded rod on one side is threadedly connected to the inner wall of the sliding block, while the outer wall of the connecting rod on the other side slides against the inner wall of the sliding block. A cup holder is tightly fitted to the upper surface of the lower part of the grinder. The front ends of the sliding blocks are fixedly connected to both sides of the outer wall of the rear end of the cup holder. An anti-slip pad is fixedly connected to the upper surface of the cup holder.
[0008] Through the above technical solution, the design of servo motor, threaded rod, connecting rod and sliding block makes the height of cup holder adjustable. This design allows users to adjust the height of the cup holder according to different sizes of coffee cups to meet the needs of various coffee cups. Precise height adjustment helps to ensure that coffee powder falls directly and accurately into the coffee cup, reducing operational errors and improving the accuracy of coffee making. In addition, the anti-slip pad design can ensure the stability of the coffee cup placed on the cup holder and prevent the coffee cup from sliding or tipping over during the grinding process.
[0009] Furthermore, a groove is formed in the middle of the upper surface of the coffee grinder, and a connecting groove is formed in the middle of the bottom surface of the groove. The outer wall of the lower end of the bean container is tightly fitted with the inner wall of the connecting groove. A mounting plate is fixedly connected to the outer wall of the lower end of the bean container. The outer wall of the mounting plate is tightly fitted with the inner wall of the groove. Two connecting blocks are fixedly connected to the middle of both sides of the outer wall of the mounting plate. The outer walls of adjacent ends of the connecting blocks are provided with snap-fit grooves. Fixing blocks are fixedly connected to both sides of the middle of the upper surface of the coffee grinder. The side of the fixing block near the center of the mounting plate is tightly fitted with both sides of the inner wall of the groove. The front and rear ends of the side of the upper surface of the fixing block near the center of the mounting plate are provided with rectangular grooves. The middle of the upper surface of the fixing block... Each component has two second mounting slots. A sliding groove is formed on the inner wall of each second mounting slot on the side furthest from the center of the mounting plate. The sliding groove on the side furthest from the center of the mounting plate is connected to the interior of the rectangular slot. The lower end of each snap-fit component is located inside the second mounting slot. The outer wall of the lower end of each snap-fit component on the side furthest from the center of the fixing block is slidably fitted against the inner wall of the sliding groove. Two return springs are fixedly connected to the lower end of each snap-fit component on the side closest to the center of the fixing block. The return springs on the side closest to the center of the fixing block are fixedly connected to the inner wall of the second mounting slot. The outer wall of each connecting block is tightly fitted against the inner wall of the rectangular slot. The outer wall of the lower end of each snap-fit component on the side furthest from the center of the fixing block engages with the inner wall of the snap-fit groove.
[0010] Through the above technical solution, the design of the snap-fit component, and the corresponding sliding groove and snap-fit groove, the bean container can be easily installed on the grinder, and it is also easy to disassemble, which improves the maintainability of the equipment. In addition, the use of a return spring ensures that the snap-fit component will not easily fall off when subjected to external force.
[0011] Furthermore, a dust cover is tightly fitted to the upper surface of the bean container, a silicone plug is fixedly connected to the lower surface of the dust cover, the outer wall of the silicone plug is tightly fitted to the inner wall of the upper end of the bean container, and a handle is fixedly connected to the middle of the upper surface of the dust cover.
[0012] The above technical solution uses a dust cover and silicone stopper to keep coffee beans fresh, and includes a handle for easy opening.
[0013] Furthermore, a grinder is connected through the lower end of the connecting groove. The grinder is located inside the coffee grinder. A powder outlet pipe is connected through the middle of the lower end of the grinder. The lower end of the powder outlet pipe passes through the coffee grinder to the upper end of the anti-slip pad.
[0014] The above technical solution uses a grinder to grind coffee beans and a powder outlet tube to provide a channel for the ground coffee powder.
[0015] Furthermore, a PLC control panel is fixedly connected to the upper part of the front end of the coffee grinder, and a control switch is provided in the middle of the lower end of the PLC control panel. The rear end of the control switch is fixedly connected to the outer wall of the upper part of the front end of the coffee grinder.
[0016] The above technical solution uses a PLC control panel and control switches to operate and control the grinding process.
[0017] Furthermore, a charging port is provided at the lower part of the other side of the rear end of the coffee grinder;
[0018] The above technical solution allows the coffee machine to be charged via a charging port.
[0019] Furthermore, an anti-slip base is fixedly connected to the lower surface of the coffee grinder;
[0020] The above technical solution uses an anti-slip base to stabilize the coffee machine.
[0021] Furthermore, buttons are fixedly connected to the side of the upper end of the card connector away from the center of the fixing block;
[0022] The above technical solution allows users to easily operate the card connector via buttons, thus facilitating the installation or removal of the bean container.
[0023] This utility model has the following beneficial effects:
[0024] 1. The coffee grinding device proposed in this utility model, through the design of a servo motor, threaded rod, connecting rod and sliding block, allows the height of the cup holder to be adjusted. This design allows users to adjust the height of the cup holder according to different sizes of coffee cups to meet the needs of various coffee cups. Precise height adjustment helps to ensure that coffee powder falls directly and accurately into the coffee cup, reducing operational errors and improving the accuracy of coffee making. In addition, the anti-slip pad design can ensure the stability of the coffee cup placed on the cup holder and prevent the coffee cup from sliding or tipping over during the grinding process.
[0025] 2. The coffee grinding device for a coffee machine proposed in this utility model, through the design of the snap-fit component and the corresponding sliding groove and snap-fit groove, makes it easy to install the bean container on the coffee grinder, and also easy to disassemble, improving the maintainability of the equipment. In addition, the use of a return spring ensures that the snap-fit component will not easily fall off when subjected to external force. Attached Figure Description
[0026] Figure 1 This is an isometric view of a coffee grinder device for a coffee machine according to the present invention.
[0027] Figure 2 This is a cross-sectional view of a coffee grinding device for a coffee machine according to the present invention.
[0028] Figure 3 This is a partial structural isometric view of the coffee grinding device of a coffee machine according to the present invention.
[0029] Figure 4 This is an exploded view of a portion of the structure of the grinding device for a coffee machine according to the present invention.
[0030] Figure 5 This is a partial exploded view of the grinding device of a coffee machine according to the present invention;
[0031] Figure 6 This is a partial structural detail of the coffee grinding device for a coffee machine according to the present invention.
[0032] Legend:
[0033] 1. Coffee grinder; 101. PLC control panel; 102. Control switch; 103. First mounting slot; 104. Charging port; 105. Groove; 106. Connecting slot; 107. Anti-slip base; 2. Coffee bean holder; 201. Mounting plate; 202. Connecting block; 203. Snap-fit groove; 3. Dust cover; 301. Handle; 302. Silicone plug; 4. Servo motor; 401. Threaded rod; 402. Connecting rod; 403. Sliding block; 404. Cup holder; 405. Anti-slip pad; 5. Fixing block; 501. Rectangular groove; 502. Second mounting slot; 503. Sliding groove; 6. Snap-fit component; 601. Button; 602. Return spring; 7. Grinder; 701. Powder outlet tube. Detailed Implementation
[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0035] Reference Figure 1 , Figure 2 and Figure 4This utility model provides a specific embodiment: a coffee grinder device for a coffee machine, including a grinder 1, a bean container 2, and multiple snap-fit parts 6. The lower front end of the grinder 1 has two first mounting grooves 103 on both sides. A servo motor 4 is fixedly connected to the inner bottom surface of one side of the first mounting groove 103. A threaded rod 401 is provided inside the first mounting groove 103 on one side. The upper end of the threaded rod 401 is rotatably connected to the inner top surface of the first mounting groove 103. The output end of the servo motor 4 is fixedly connected to the middle of the lower end of the threaded rod 401. A connecting rod 402 is fixedly connected to the inner wall of the other side of the first mounting groove 103. Sliding blocks 403 are fitted onto the outer walls of both the connecting rod 402 and the threaded rod 401. The outer wall of one side of the threaded rod 401 is threadedly connected to the inner wall of the sliding block 403, and the outer wall of the other side of the connecting rod 402 is threadedly connected to the inner wall of the sliding block 403. The inner wall of the 03 slides and fits tightly, and the upper surface of the lower part of the grinder 1 is tightly fitted with the cup holder 404. The front end of the sliding block 403 is fixedly connected to both sides of the rear outer wall of the cup holder 404. The upper surface of the cup holder 404 is fixedly connected with the anti-slip pad 405. Through the design of the servo motor 4, the threaded rod 401, the connecting rod 402 and the sliding block 403, the height of the cup holder 404 can be adjusted. This design allows users to adjust the height of the cup holder 404 according to different sizes of coffee cups to meet the needs of various coffee cups. Precise height adjustment helps to ensure that coffee powder falls directly and accurately into the coffee cup, reducing operational errors and improving the accuracy of coffee making. In addition, the design of the anti-slip pad 405 can ensure the stability of the coffee cup placed on the cup holder 404 and prevent the coffee cup from sliding or tipping over during the grinding process.
[0036] Reference Figure 3 , Figure 5 and Figure 6A groove 105 is formed in the middle of the upper surface of the coffee grinder 1. A connecting groove 106 is formed in the middle of the bottom surface of the groove 105. The outer wall of the lower end of the bean container 2 is tightly fitted with the inner wall of the connecting groove 106. An installation plate 201 is fixedly connected to the outer wall of the lower end of the bean container 2. The outer wall of the installation plate 201 is tightly fitted with the inner wall of the groove 105. Two connecting blocks 202 are fixedly connected to the middle of both sides of the outer wall of the installation plate 201. The outer walls of the adjacent ends of the connecting blocks 202 are provided with snap-fit grooves 203. A fixing block 5 is fixedly connected to both sides of the middle part of the upper surface of the coffee grinder 1. The side of the fixing block 5 near the center of the mounting plate 201 is tightly fitted to both sides of the inner wall of the groove 105. Rectangular grooves 501 are opened at the front and rear ends of the side of the upper surface of the fixing block 5 near the center of the mounting plate 201. Two second mounting grooves 502 are opened in the middle of the upper surface of the fixing block 5. A sliding groove 503 is opened on the side of the inner wall of the second mounting groove 502 away from the center of the mounting plate 201. The side of the connecting block 202 away from the center of the mounting plate 201 is connected to the interior of the rectangular groove 501. The lower end of the snap-fit 6 is located inside the second mounting groove 502. The outer wall of the side of the lower end of the snap-fit 6 away from the center of the fixing block 5 is slidably attached to the inner wall of the sliding groove 503. Two return springs 602 are fixedly connected to the side of the lower end of the snap-fit 6 near the center of the fixing block 5. The side of the return springs 602 near the center of the fixing block 5 is fixedly connected to the inner wall of the second mounting groove 502. The outer wall of the connecting block 202 is tightly attached to the inner wall of the rectangular groove 501. The outer wall of the lower end of the snap-fit 6 away from the center of the fixing block 5 is snapped into the inner wall of the snap-fit groove 203. Through the design of the snap-fit 6, and the sliding groove 503 and snap-fit groove 203 that cooperate with it, the bean container 2 can be easily installed on the grinder 1. It is also easy to disassemble, which improves the maintainability of the equipment. In addition, the use of the return springs 602 ensures that the snap-fit 6 will not easily fall off when subjected to external force.
[0037] Reference Figure 1 , Figure 2 and Figure 3A dust cover 3 is tightly fitted to the upper surface of the bean container 2. A silicone plug 302 is fixedly connected to the lower surface of the dust cover 3. The outer wall of the silicone plug 302 is tightly fitted to the inner wall of the upper end of the bean container 2. A handle 301 is fixedly connected to the middle of the upper surface of the dust cover 3. The dust cover 3 and the silicone plug 302 are used to keep the coffee beans fresh and the handle 301 makes it easy to open. A grinder 7 is connected through the lower end of the connecting groove 106. The grinder 7 is located inside the grinder 1. A powder outlet tube 701 is connected through the middle of the lower end of the grinder 7. The lower end of the powder outlet tube 701 passes through the grinder 1 to the upper end of the anti-slip pad 405. The grinder 7 is used to grind coffee beans, and the powder outlet tube 701 provides a channel for the ground coffee powder. The front end of the grinder 1... A PLC control panel 101 is fixedly connected to the upper part. A control switch 102 is set in the middle of the lower end of the PLC control panel 101. The rear end of the control switch 102 is fixedly connected to the outer wall of the upper front end of the coffee grinder 1. The PLC control panel 101 and the control switch 102 are used to operate and control the coffee grinding process. A charging port 104 is set in the lower part of the other side of the rear end of the coffee grinder 1. The charging port 104 is used to charge the coffee machine. An anti-slip base 107 is fixedly connected to the lower surface of the coffee grinder 1. The anti-slip base 107 is used to stabilize the coffee machine. A button 601 is fixedly connected to the upper end of the snap-fit component 6 on the side away from the center of the fixing block 5. The button 601 makes it easy for the user to operate the snap-fit component 6, thereby facilitating the installation or removal of the bean container 2.
[0038] Working principle: First, place coffee beans into the bean holder 2 and ensure the dust cover 3 is sealed to keep the coffee beans fresh. Then, the mounting plate 201 at the lower end of the bean holder 2 is tightly fitted into the groove 105 on the upper surface of the grinder 1, and the bean holder 2 is fixed to the grinder 1 using the snap-fit component 6. Ensure that the connecting block 202 engages with the rectangular groove 501 and the second mounting groove 502 of the fixing block 5, and that the snap-fit component 6 engages with the sliding groove 503 and the snap-fit groove 203. The return spring 602 ensures the stability of the snap-fit component 6. Simultaneously, according to the coffee... The size of the cup is adjusted by operating the servo motor 4 via the PLC control panel 101, adjusting the threaded rod 401 and connecting rod 402, and thus adjusting the position of the sliding block 403, thereby changing the height of the cup holder 404. The anti-slip pad 405 is used to stabilize the coffee cup. Next, the PLC control panel 101 is turned on, and the control switch 102 is activated to begin the coffee grinding process. The grinder 7 grinds the coffee beans into powder, which is then directly fed into the coffee cup through the powder outlet pipe 701. If the coffee machine's battery is low, it is charged via the charging port 104. The grinder 1 and bean tray 2 should be cleaned regularly to ensure proper operation. Additionally, the bean tray 2 can be easily disassembled for cleaning by operating the latch 6 via button 601.
[0039] 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 specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific 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. A coffee grinder device of a coffee maker, comprising a grinder (1), a bean container (2) and a plurality of clamping members (6), characterized in that: The first installation slot (103) is arranged on the lower part of the front end of the grinder (1), the inner bottom surface of the first installation slot (103) on one side is fixedly connected with a servo motor (4), the inside of the first installation slot (103) on one side is provided with a threaded rod (401), the upper end of the threaded rod (401) on one side is rotatably connected with the inner top surface of the first installation slot (103), the output end of the servo motor (4) is fixedly connected with the middle part of the lower end of the threaded rod (401), the inner wall of the first installation slot (103) on the other side is fixedly connected with a connecting rod (402), the outer walls of the connecting rod (402) and the threaded rod (401) are both sleeved with sliding blocks (403), the outer wall of the threaded rod (401) on one side is threadedly connected with the inner wall of the sliding block (403), the outer wall of the connecting rod (402) on the other side is slidably attached with the inner wall of the sliding block (403), the upper surface of the lower part of the grinder (1) is tightly attached with a cup placing rack (404), the front ends of the sliding blocks (403) are fixedly connected with the outer walls of the rear ends of the cup placing rack (404) on both sides, and the upper surface of the cup placing rack (404) is fixedly connected with a non-slip pad (405).
2. A coffee grinder device for a coffee machine according to claim 1, characterized in that: The upper surface of the bean grinder (1) is provided with a groove (105) in the middle, the inner bottom surface of the groove (105) is provided with a connecting groove (106) in the middle, the outer wall of the lower end of the bean box (2) is tightly attached to the inner wall of the connecting groove (106), the outer wall of the lower end of the bean box (2) is fixedly connected with a mounting plate (201), the outer wall of the mounting plate (201) is tightly attached to the inner wall of the groove (105), the middle of the outer wall of the mounting plate (201) is fixedly connected with two connecting blocks (202), the outer wall of the adjacent two ends of the connecting block (202) is provided with a clamping groove (203), the middle of the upper surface of the bean grinder (1) is fixedly connected with a fixed block (5), one side of the fixed block (5) near the center of the mounting plate (201) is tightly attached to the two sides of the inner wall of the groove (105), the front end and the rear end of one side of the upper surface of the fixed block (5) near the center of the mounting plate (201) are provided with a rectangular groove (501), the middle of the upper surface of the fixed block (5) is provided with two second mounting grooves (502), one side of the inner wall of the second mounting groove (502) away from the center of the mounting plate (201) is provided with a sliding groove (503), one side of the sliding groove (503) away from the center of the mounting plate (201) is connected with the inside of the rectangular groove (501), the lower end of the clamping piece (6) is located in the inside of the second mounting groove (502), the outer wall of one side of the lower end of the clamping piece (6) away from the center of the fixed block (5) is slidingly attached to the inner wall of the sliding groove (503), two reset springs (602) are fixedly connected to one side of the lower end of the clamping piece (6) near the center of the fixed block (5), one side of the reset spring (602) near the center of the fixed block (5) is fixedly connected with the inner wall of the second mounting groove (502), the outer wall of the connecting block (202) is tightly attached to the inner wall of the rectangular groove (501), and the outer wall of one side of the lower end of the clamping piece (6) away from the center of the fixed block (5) is clamped and matched with the inner wall of the clamping groove (203).
3. A coffee grinder device for a coffee machine according to claim 1, characterized in that: The upper surface of the bean box (2) is tightly attached with a dust cover (3), the lower surface of the dust cover (3) is fixedly connected with a silica gel plug (302), the outer wall of the silica gel plug (302) is tightly attached to the inner wall of the upper end of the bean box (2), and the middle of the upper surface of the dust cover (3) is fixedly connected with a handle (301).
4. A coffee grinder device for a coffee machine according to claim 2, characterized in that: The lower end of the connecting groove (106) is connected with a grinder (7), the grinder (7) is located in the inside of the bean grinder (1), the middle of the lower end of the grinder (7) is connected with a powder outlet pipe (701), and the lower end of the powder outlet pipe (701) penetrates the bean grinder (1) to the upper end of the anti-skid pad (405).
5. A coffee grinder device for a coffee machine according to claim 1, characterized in that: The upper part of the front end of the bean grinder (1) is fixedly connected with a PLC control panel (101), the middle of the lower end of the PLC control panel (101) is provided with a control switch (102), and the rear end of the control switch (102) is fixedly connected with the outer wall of the upper part of the front end of the bean grinder (1).
6. A coffee grinder device for a coffee machine according to claim 1, characterized in that: The lower part of the other side of the rear end of the coffee grinder (1) is provided with a charging port (104).
7. A coffee grinder device for a coffee machine according to claim 1, characterized in that: The lower surface of the coffee grinder (1) is fixedly connected with an anti-skid base (107).
8. A coffee grinder device for a coffee machine according to claim 1, characterized in that: The upper end of the clamping piece (6) is fixedly connected with a key (601) away from the center of the fixed block (5).