Convenient powder cleaning type coffee bean grinder with quick-release grinding disc assembly

Abstract

The invention discloses a coffee bean grinder provided with a quick-release grinding disc assembly and convenient for powder cleaning. The coffee bean grinder comprises a whole machine main body, and one end of the whole machine main body is provided with an opening communicated with the inside; a fixed millstone bin, a millstone assembly and a fixed seat which are sequentially and axially connected are arranged in the whole machine body, the millstone assembly and the fixed seat are connected in the fixed millstone bin in a sleeved mode, and at least one pin through hole is formed in the cylindrical face of the fixed millstone bin and the cylindrical face of the fixed seat respectively. External pins are inserted into the pin through holes of the fixed millstone bin and the fixed seat, so that the fixed millstone bin is fixedly connected with the fixed seat; axial movement of the fixed millstone bin and the fixed seat is limited through the pins, and the fixed millstone bin and the fixed seat are fixedly assembled and mutually disassembled, so that quick disassembly of the fixed millstone bin and the millstone assembly is realized, simplicity of product disassembly is improved, and the millstone assembly is simpler, more convenient and easier in daily maintenance and cleaning; the core problems that a traditional bean grinder is tedious in maintenance and troublesome to disassemble and assemble are solved.

Description

Technical Field

[0001] The invention relates to the technical field of coffee bean grinders, and in particular to a coffee bean grinder with a quick-detachable grinding disc assembly for easy cleaning of coffee beans. Background Art

[0002] A coffee bean grinder is a key device for preparing coffee. It breaks coffee beans into uniform particles through the grinding blade, which directly affects the flavor and taste of coffee extraction. An ideal grinder needs to take into account grinding accuracy, easy cleaning and ease of operation to meet the efficiency needs of home and commercial scenarios.

[0003] Most existing coffee bean grinders use a fixed grinding disc structure, and disassembly and cleaning requires the use of tools to gradually remove screws or complex buckles, which is time-consuming and easy to damage components. Residual coffee powder easily accumulates in the gap between the grinding discs, breeding odors and affecting grinding efficiency. In addition, traditional adjustment mechanisms rely on non-scaled knobs or simple threads, which make it difficult to accurately control the spacing between the grinding discs, resulting in uneven coarseness of the powder particles. Although some quick-release designs simplify the process, there are still shortcomings. Their disassembly relies on special tools, the components are unstable and easy to loosen, and the adjustment marks are blurred, resulting in unintuitive operation. These problems restrict the user experience. Therefore, there is an urgent need for a coffee bean grinder solution that does not require tools for quick disassembly and assembly, is stably fixed, and supports precise adjustment. Summary of the invention

[0004] In view of the shortcomings of the above-mentioned technology that the disassembly and assembly of the grinding disc of the traditional coffee bean grinder is complicated and inconvenient and the coarseness of the coffee powder cannot be accurately adjusted, the present invention provides a coffee bean grinder with a quick-detachable grinding disc assembly for easy powder cleaning.

[0005] To achieve the above-mentioned purpose, the present invention provides a coffee bean grinder with a quick-detachable grinding disc assembly for convenient powder cleaning, characterized in that it includes a whole machine body, a motor, a bean inlet bin, a powder outlet bin, and a bean grinding chamber, wherein the motor is fixedly arranged in the whole machine body, one end of the bean grinding chamber is fixedly connected to the whole machine body, and the other end is provided with an opening; it also includes a grinding disc assembly controlled by the motor, and the grinding disc assembly is detachably connected to the grinding bean chamber along the axial direction of the motor output shaft; an adjusting pressure ring assembly for adjusting and locking the grinding disc assembly is also provided at the opening of the grinding bean chamber, and the adjusting pressure ring assembly is movably connected to the grinding bean chamber.

[0006] As an improved solution of the present invention, the grinding wheel assembly includes a fixed grinding wheel bin and a screw movable grinding wheel part, a plate movable part and an adjusting threaded part which are axially connected in sequence and arranged in the cavity of the fixed grinding wheel bin, one end of the screw movable grinding wheel part is sleeved on the output shaft of the motor; the end of the adjusting threaded part away from the plate movable part is movably connected to the adjusting pressure ring assembly.

[0007] As an improved solution of the present invention, the screw movable grinding disc member includes a fixed grinding disc, a movable grinding disc, a bean transmission rod and a connecting rod arranged in the fixed grinding disc bin, the fixed grinding disc is fixedly connected to the fixed grinding disc bin, the bean transmission rod, the connecting rod and the movable grinding disc are coaxially fixedly connected in sequence and controlled by the output shaft of the motor, a telescopic spring is also provided in the inner cavity of the bean transmission rod, and a fixed baffle is also provided at one end of the bean transmission rod close to the motor, the fixed baffle is sleeved on the output shaft of the motor, one end of the telescopic spring abuts against the fixed baffle, and the other end abuts against the inner wall surface of the bean transmission rod; the adjusting pressure ring assembly controls the gap between the fixed grinding disc and the movable grinding disc through the adjusting threaded member.

[0008] As an improved solution of the present invention, the adjusting pressure ring assembly comprises a scale locking ring and a threaded ring, the scale locking ring is fixedly sleeved on the threaded ring; the grinding bean cavity has an open end with a threaded structure, and the threaded ring is threadedly connected to the grinding bean cavity to limit the grinding bean assembly; the adjusting threaded member comprises a fixed seat and a threaded seat, the fixed seat is sleeved on the threaded seat and threadedly connected, the inner end surface of the scale locking ring is provided with a connecting hole, and the end surface of the threaded seat is provided with a connecting column engaged with the connecting hole; a fixed baffle is sleeved on the output shaft of the motor, and a telescopic spring is provided in the screw movable grinding disc member, one end of the telescopic spring abuts against the screw movable grinding disc member, and the other end abuts against the fixed baffle; the scale locking ring controls the axial distance of the threaded seat by rotating through the connecting column, controls the extension or contraction of the telescopic spring, and thereby adjusts the gap between the fixed grinding disc and the movable grinding disc.

[0009] As an improved solution of the present invention, the fixed seat is sleeved in the fixed grinding disc bin, and the cylindrical surfaces of the fixed seat and the fixed grinding disc bin are respectively provided with at least one relatively positioned fixed through hole and pin through hole; when an external pin is inserted into the pin through hole of the fixed grinding disc bin and the fixed through hole of the fixed seat, the axial movement of the fixed grinding disc bin and the fixed seat is limited.

[0010] As an improved solution of the present invention, the inner wall surface of the fixed grinding disc bin is provided with a positioning groove, the outer wall surface of the fixed seat is provided with a positioning block, and the fixed seat is embedded in the fixed grinding disc bin, and the rotation between the fixed grinding disc bin and the fixed seat is limited by the cooperation of the positioning groove and the positioning block.

[0011] As an improved solution of the present invention, an abutment ring is formed on the outer wall of the threaded ring, and the abutment ring is larger than the opening of the whole machine body. When the threaded seat is threadedly connected to the whole machine body, the abutment ring abuts against the end face of the whole machine body.

[0012] As an improved solution of the present invention, the bearing plate movable part includes a movable ring, a bearing and a movable bearing plate, one end of the screw movable grinding disc part is engaged with the movable ring, and the movable ring extends away from one end of the motor to form a bearing part, and the bearing part, the bearing and the movable bearing plate are sequentially socketed; at least one connecting block is formed on the inner wall of the fixed seat, and a connecting notch matched with the connecting block is formed on the cylindrical surface of the movable ring, and the fixed seat is fixedly connected to the movable ring through the connecting block and the connecting notch.

[0013] As an improved solution of the present invention, at least one threaded hole is provided at one end of the bean grinding chamber close to the motor, and a connecting through hole adapted to the threaded hole is provided on the motor; an external bolt is threadedly connected to the threaded hole through the connecting through hole, so that the motor is fixed to the bean grinding chamber.

[0014] As an improved solution of the present invention, a control knob electrically connected to the motor is provided on the whole machine body, and the control knob is used to adjust the rotation speed of the motor.

[0015] The beneficial effects of the present invention are as follows: compared with the prior art, the present invention provides a quick-detachable grinding disc assembly for convenient powder cleaning coffee bean grinder, comprising a whole machine body, a motor, a bean inlet bin, a powder outlet bin, and a bean grinding chamber, wherein the motor is fixedly arranged in the whole machine body, one end of the bean grinding chamber is fixedly connected to the whole machine body, and the other end is provided with an opening; the grinding disc assembly controlled by the motor is also included, and the grinding disc assembly is detachably connected to the bean grinding chamber along the axial direction of the motor output shaft; an adjusting pressure ring assembly for adjusting and locking the grinding disc assembly is also provided at the opening of the bean grinding chamber, The adjusting pressure ring assembly is movably connected with the bean grinding cavity; the grinding disc assembly of the present invention can be removed as a whole outside the bean grinding cavity, and the grinding disc assembly can be firmly installed and the grinding disc gap in the grinding disc assembly can be adjusted by adjusting the pressure ring assembly to control the diameter of the coffee powder. The fixed grinding disc bin and the fixed seat of the grinding disc assembly limit the axial movement of the fixed grinding disc bin and the fixed seat through pins, and the two are fixedly assembled and removed from each other, thereby realizing the quick disassembly of the fixed grinding disc bin and the grinding disc assembly, improving the simplicity of product disassembly, and making the grinding disc assembly easier and more convenient in daily maintenance and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a first exploded view of the present invention; Figure 2 is a second exploded view of the present invention; Figure 3 A perspective view of the present invention; Figure 4 It is an exploded view of the screw movable grinding disc member of the present invention; Figure 5 An exploded view of the adjusting screw member of the present invention; Figure 6 An exploded view of the adjusting pressure ring assembly of the present invention; Figure 7 It is a schematic diagram of a fixed grinding disc bin of the present invention; Figure 8 It is a schematic diagram of the tray movable part of the present invention.

[0017] The main component symbols are described as follows: 1. The main body of the machine; 2. Grinding chamber; 21. Threaded hole; 3. Grinding disc assembly; 31. Fixed grinding disc bin; 311. Fixed grinding disc; 312. Pin through hole; 313. Positioning slot; 32. Screw movable grinding disc; 321. Moving grinding disc; 322. Bean transmission rod; 323. Connecting rod; 33. movable plate; 331. movable ring; 3311. bearing portion; 332. bearing; 333. movable plate; 3331. connecting notch; 34, adjusting threaded member; 341, fixing seat; 3411, fixing through hole; 3412, positioning block; 3413, connecting block; 342, threaded seat; 4. Adjusting pressure ring assembly; 41. Scale locking ring; 411. Connecting hole; 42. Threaded ring; 421. Abutting ring; 5. Motor; 51. Thread; 6. Enter the bean bin; 7. Powder outlet; 8. Control knob; 9. Fixed baffle; 10. Telescopic spring. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0019] In the following description, the example details are given to provide a deeper understanding of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. It should be understood that the specific embodiments are only used to explain the present invention and are not used to limit the present invention.

[0020] It should be understood that when the terms "include" and / or "comprises" are used in this specification, they indicate the existence of the stated features, integers, steps, operations, elements or components, but do not exclude the existence or addition of one or more other features, integers, steps, operations, elements, components or combinations thereof.

[0021] See also Figure 1-Figure 8The present invention discloses a coffee bean grinder with a quick-detachable grinding disc assembly for convenient powder cleaning, comprising a machine body 1, a motor 5, a bean inlet bin 6, a powder outlet bin 7, and a bean grinding chamber 2. The motor 5 is fixedly arranged in the machine body 1, one end of the bean grinding chamber 2 is fixedly connected to the machine body 1, and the other end is provided with an opening. The bean inlet bin 6 and the powder outlet bin 7 are arranged on the cylindrical surface of the bean grinding chamber 2 and are connected to the inner cavity of the bean grinding chamber 2; the grinding disc assembly 3 controlled by the motor 5 is also included, and the grinding disc assembly 3 is detachably connected to the bean grinding chamber along the axial direction of the output shaft of the motor 5. cavity 2; an adjusting pressure ring assembly 4 for adjusting and locking the grinding disc assembly 3 is also provided at the opening of the grinding bean cavity 2, and the adjusting pressure ring assembly 4 is movably connected to the grinding bean cavity 2; the grinding disc assembly 3 can be completely disassembled to the outside of the grinding bean cavity 2 along the axial direction of the output shaft of the motor 5, which is convenient for cleaning the residual coffee powder inside the grinding disc assembly 3 and repairing the components, making the daily maintenance of the grinder more convenient and efficient. When reassembling, the grinding disc assembly 3 can be locked by adjusting the pressure ring assembly 4, and the powder diameter of the coffee powder ground by the grinding disc assembly 3 can be adjusted.

[0022] The working principle of the present invention is: When disassembling and cleaning the product, first rotate and remove the adjusting pressure ring assembly 4 from the bean grinding chamber 2 to separate the adjusting pressure ring assembly 4 from the bean grinding chamber 2, and then completely remove the grinding disc assembly 3. After removing the grinding disc assembly 3, pull out the pins on the fixed grinding disc bin 31 and the fixed seat 341 to release the axial limit between the two, so as to separate the fixed grinding disc bin 31 and the fixed seat 341. Then, the grinding disc assembly 3 can be directly cleaned and maintained. The subsequent assembly only needs to be installed in sequence, and then the positioning block 3412 on the fixed seat 341 is aligned and inserted into the fixed seat 341. The positioning slot 313 of the grinding disc bin 31 is then inserted into the pin through hole 312 and the fixing hole to achieve fixed assembly, and finally the threaded seat 342 is threadedly connected to the main body 1 of the whole machine, and the adjusting pressure ring assembly 4 is installed; a telescopic spring 10 is provided inside the bean transfer rod 322, and when the adjusting pressure ring assembly 4 is rotated to adjust the tightness, the telescopic spring 10 will be squeezed or stretched accordingly, changing the axial position of the bean transfer rod 322, and then adjusting the axial position of the movable grinding disc 321 and the gap between the movable grinding disc 321 and the fixed grinding disc 311, thereby changing the coarseness of the coffee powder.

[0023] In this embodiment, the grinding disc assembly 3 includes a fixed grinding disc bin 31 and a screw movable grinding disc member 32, a plate movable member 33 and an adjusting threaded member 34 which are axially connected in sequence and arranged in the cavity of the fixed grinding disc bin 31. One end of the screw movable grinding disc member 32 is sleeved on the output shaft of the motor 5; the end of the adjusting threaded member 34 away from the plate movable member 33 is movably connected to the adjusting pressure ring assembly 4; the adjusting pressure ring assembly 4 is used to control the coarseness of the coffee powder ground by the screw movable grinding disc member 32, and the axial position of the threaded member 34 is adjusted to control the grinding bean space gap of the screw movable grinding disc member 32, wherein the plate movable member 33 mainly plays a role of auxiliary rotation, so that the rotation of the screw movable grinding disc member 32 and the adjusting threaded member 34 is smoother.

[0024] In the present embodiment, the screw movable grinding disc member 32 comprises a fixed grinding disc 311, a movable grinding disc 321, a bean transmission rod 322 and a connecting rod 323 arranged in the fixed grinding disc bin 31, the fixed grinding disc 311 is fixedly arranged in the fixed grinding disc bin 31, the bean transmission rod 322, the connecting rod 323 and the movable grinding disc 321 are coaxially fixedly connected in sequence and controlled by the output shaft of the motor 5, a telescopic spring 10 is also provided in the inner cavity of the bean transmission rod 322, and a fixed baffle 9 is also provided at one end of the bean transmission rod 322 close to the motor 5, the fixed baffle 9 is sleeved on the output shaft of the motor 5, one end of the telescopic spring 10 abuts against the fixed baffle 9, and the other end abuts against the inner wall surface of the bean transmission rod 322; the adjusting pressure ring assembly 4 controls the fixed grinding disc 311 and the movable grinding disc by adjusting the threaded member 34 321; wherein, the cylindrical surface of the bean transfer rod 322 is formed with a threaded structure, when the coffee beans enter, the bean transfer rod 322 rotates to drive the coffee beans to move toward the movable grinding disc 321 and the fixed grinding disc 311, and after the coffee beans are sent between the movable grinding disc 321 and the fixed grinding disc 311, the bean transfer rod 322 also drives the movable grinding disc 321 to rotate, so that the coffee beans are squeezed by the movable grinding disc 321 and the fixed grinding disc 311, and then ground into coffee powder, and the size of the gap between the movable grinding disc 321 and the fixed grinding disc 311 is adjusted to adjust the coarseness of the ground coffee powder, and the ground coffee powder flows out from the gap to the powder outlet bin 7, and the telescopic spring 10 can also reduce the vibration caused by the grinding disc grinding the beans, thereby improving the grinding stability of the bean grinder and the uniformity of the coffee powder.

[0025] In this embodiment, the adjusting pressure ring assembly 4 includes a scale locking ring 41 and a threaded ring 42, and the scale locking ring 41 is fixedly sleeved on the threaded ring 42; the grinding bean chamber 2 has an open end with a threaded structure, and the threaded ring 42 is threadedly connected to the grinding bean chamber 2 to limit the grinding bean assembly; the adjusting threaded member 34 includes a fixed seat 341 and a threaded seat 342, the fixed seat 341 is sleeved on the threaded seat 342 and threadedly connected, the inner end surface of the scale locking ring 41 is provided with a connecting hole 411, and the end surface of the threaded seat 342 is provided with a connecting column engaged with the connecting hole 411; a fixed baffle 9 is sleeved on the output shaft of the motor 5, and a telescopic spring 10 is provided in the screw movable grinding disc member 32, and one end of the telescopic spring 10 abuts against the screw movable grinding disc member 32 The other end abuts the fixed baffle 9; the graduated locking ring 41 rotates through the connecting column to control the axial distance of the threaded seat 342, so that the threaded seat 342 squeezes or releases the bearing plate movable part 33, and indirectly controls the extension or contraction of the telescopic spring 10, and the telescopic spring 10 further adjusts the gap between the fixed grinding disc 311 and the movable grinding disc 321; due to the elastic force of the telescopic spring 10 itself, when the threaded seat 342 changes its own axial distance, the telescopic spring will change the axial position of the bean transmission rod 322 due to the squeezing or distance of the threaded seat 342, thereby controlling the size of the gap between the movable grinding disc 321 and the fixed grinding disc 311, and the fixed baffle 9 plays the role of abutment and blocking, ensuring that the elastic force of the telescopic spring 10 is only released in the direction of the threaded seat 342.

[0026] When the fixing seat 341 is inserted into the fixed grinding disc bin 31, the cylindrical surfaces of the fixing seat 341 and the fixed grinding disc bin 31 are respectively provided with at least one fixing through hole 3411 and a pin through hole 312 in opposite positions; when the external pin is inserted into the pin through hole 312 of the fixed grinding disc bin 31 and the fixing through hole 3411 of the fixing seat 341, the axial movement of the fixed grinding disc bin 31 and the fixing seat 341 is restricted; the fixed grinding disc bin 31 and the fixing seat 341 are inserted into the pin through hole 312 and the fixing through hole 3411 of the two by the pin, so as to realize the overall fixed assembly of the grinding disc assembly 3, and the fixed cooperation between the two is released by pulling out the pin, and then the fixed grinding disc bin 31, the screw movable grinding disc member 32, the plate movable member 33 and the adjusting threaded member 34 are disassembled and separated, so as to realize the quick-release separation assembly, which is convenient for cleaning the residual coffee powder inside the grinding disc assembly 3, and makes the daily maintenance of the grinder more convenient and efficient.

[0027] In this embodiment, a positioning groove 313 is provided on the inner wall surface of the fixed grinding wheel bin 31, and a positioning block 3412 is provided on the outer wall surface of the fixed seat 341. The fixed seat 341 is embedded in the fixed grinding wheel bin 31. The positioning groove 313 and the positioning block 3412 cooperate to limit the rotation between the fixed grinding wheel bin 31 and the fixed seat 341. In this way, it can further ensure that the assembly between the fixed grinding wheel bin 31 and the fixed seat 341 is firm and tight, thereby ensuring the overall assembly stability of the grinding wheel assembly 3.

[0028] In this embodiment, an abutment ring 421 is formed on the outer wall of the threaded ring 42. The size of the abutment ring 421 is larger than the opening of the whole machine body 1. When the threaded seat 342 is threadedly connected to the whole machine body 1, the abutment ring 421 abuts against the end surface of the whole machine body 1. The abutment ring 421 can ensure that when the adjustment pressure ring assembly 4 is locked, it prevents the threaded ring 42 from excessively rotating and disengaging from the threaded structure on the grinding chamber 2, causing the screw to get stuck.

[0029] In the present embodiment, the plate movable member 33 comprises a movable ring 331, a bearing 332 and a movable plate 333. One end of the screw movable grinding disc member 32 is engaged with the movable ring 331. The movable ring 331 extends away from the end of the motor 5 to form a bearing 332 portion 3311. The bearing 332 is sleeved on the bearing 332 portion 3311, and the movable plate 333 sleeves the bearing 332. The inner wall of the fixed seat 341 is formed with at least one connecting block 3413. The cylindrical surface of the movable ring 331 is formed with a connecting notch 3331 adapted to the connecting block 3413. The fixed seat 341 is fixedly connected to the movable ring 331 through the connecting block 3413 and the connecting notch 3331. When the motor 5 is started, the bean transmission rod 322 drives the connecting rod 323 to rotate, and the movable ring 331 engaged with the connecting rod 323 is also driven to rotate. The rotation of the movable ring 331 is smoother by adding the bearing 332.

[0030] In this embodiment, at least one threaded hole 21 is provided at one end of the grinding chamber 2 close to the motor 5, and a connecting through hole 51 adapted to the threaded hole 21 is provided on the motor 5; an external bolt is threadedly connected to the threaded hole 21 through the connecting through hole 51, so that the motor 5 is fixed on the grinding chamber 2.

[0031] In this embodiment, a control knob 8 electrically connected to the motor 5 is provided on the machine body 1 , and the control knob 8 is used to adjust the rotation speed of the motor 5 .

[0032] The advantages of the present invention are: The present invention uses modular quick-release design and intelligent control to not only achieve rapid disassembly of the grinding disc assembly and reduce the time cost of users in maintaining and cleaning the product, but also greatly simplifies the cleaning and maintenance process through the integrated detachable structure, thereby improving the simplicity of product disassembly, and making the grinding disc assembly easier to maintain and clean daily. At the same time, the coordinated adjustment mechanism of the telescopic spring and the motor speed effectively improves the grinding stability and the uniformity of the coffee powder, taking into account both professional-grade grinding accuracy and ease of use in home scenarios, and solving the core pain points of traditional coffee grinders, such as cumbersome maintenance and troublesome disassembly and installation.

[0033] The above disclosures are only several specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A coffee bean grinder with a quick-release grinding disc assembly for easy cleaning, characterized in that: The invention comprises a machine body, a motor, a bean inlet bin, a powder outlet bin and a bean grinding chamber, wherein the motor is fixedly arranged in the machine body, one end of the bean grinding chamber is fixedly connected to the machine body, and the other end is provided with an opening; the invention also comprises a grinding disc assembly controlled by the motor, and the grinding disc assembly is detachably connected to the bean grinding chamber along the axial direction of the output shaft of the motor; an adjusting pressure ring assembly for adjusting and locking the grinding disc assembly is also provided at the opening of the bean grinding chamber, and the adjusting pressure ring assembly is movably connected to the bean grinding chamber.

2. The coffee bean grinder with quick-release grinding disc assembly and convenient powder cleaning according to claim 1, characterized in that: The grinding disc assembly includes a fixed grinding disc bin and a screw movable grinding disc member, a plate movable member and an adjusting threaded member which are axially connected in sequence and arranged in the fixed grinding disc bin cavity, one end of the screw movable grinding disc member is sleeved on the output shaft of the motor; one end of the adjusting threaded member away from the plate movable member is movably connected to the adjusting pressure ring assembly; the adjusting pressure ring assembly controls the coarseness of the coffee powder ground by the screw movable grinding disc member through the axial position of the adjusting threaded member.

3. The coffee bean grinder with quick-release grinding disc assembly and convenient powder cleaning according to claim 2, characterized in that: The screw movable grinding disc member includes a fixed grinding disc, a movable grinding disc, a bean transmission rod and a connecting rod arranged in the fixed grinding disc bin, the fixed grinding disc is fixedly connected to the fixed grinding disc bin, the bean transmission rod, the connecting rod and the movable grinding disc are coaxially fixedly connected in sequence and controlled by the output shaft of the motor; a telescopic spring is also provided in the inner cavity of the bean transmission rod, and a fixed baffle is also provided at one end of the bean transmission rod close to the motor, the fixed baffle is sleeved on the output shaft of the motor, one end of the telescopic spring abuts against the fixed baffle, and the other end abuts against the inner wall surface of the bean transmission rod; the adjusting pressure ring assembly controls the gap between the fixed grinding disc and the movable grinding disc through the adjusting threaded member.

4. The coffee bean grinder with quick-release grinding disc assembly and convenient powder cleaning according to claim 3, characterized in that: The adjusting pressure ring assembly comprises a scale locking ring and a threaded ring, wherein the scale locking ring is fixedly sleeved on the threaded ring; a threaded structure is provided at one end of the grinding bean cavity having an opening, and the threaded ring is threadedly connected to the grinding bean cavity to limit the grinding bean assembly; the adjusting threaded member comprises a fixing seat and a threaded seat, wherein the fixing seat is sleeved on the threaded seat and threadedly connected, the inner end surface of the scale locking ring is provided with a connecting hole, and the end surface of the threaded seat is provided with a connecting column engaged with the connecting hole; a fixed baffle is sleeved on the output shaft of the motor, and a telescopic spring is provided in the screw movable grinding disc member, one end of the telescopic spring abuts against the screw movable grinding disc member, and the other end abuts against the fixed baffle; the scale locking ring controls the axial distance of the threaded seat by rotating through the connecting column, controls the extension or contraction of the telescopic spring, and thereby adjusts the gap between the fixed grinding disc and the movable grinding disc.

5. The coffee bean grinder with quick-release grinding disc assembly and convenient powder cleaning according to claim 4, characterized in that: The fixed seat is sleeved in the fixed grinding disc bin, and the cylindrical surfaces of the fixed seat and the fixed grinding disc bin are respectively provided with at least one relatively positioned fixed through hole and pin through hole; when an external pin is inserted into the pin through hole of the fixed grinding disc bin and the fixed through hole of the fixed seat, the axial movement of the fixed grinding disc bin and the fixed seat is restricted.

6. The coffee bean grinder with quick-release grinding disc assembly and convenient powder cleaning according to claim 5, characterized in that: The inner wall surface of the fixed grinding disc bin is provided with a positioning slot, the outer wall surface of the fixed seat is provided with a positioning block, and the fixed seat is embedded in the fixed grinding disc bin, and the rotation between the fixed grinding disc bin and the fixed seat is limited by the cooperation of the positioning slot and the positioning block.

7. The coffee bean grinder with quick-release grinding disc assembly and convenient powder cleaning according to claim 4, characterized in that: An abutment ring is formed on the outer wall of the threaded ring. The abutment ring is larger than the opening of the whole machine body. When the threaded seat is threadedly connected with the whole machine body, the abutment ring abuts against the end face of the whole machine body.

8. The coffee bean grinder with quick-release grinding disc assembly and convenient powder cleaning according to claim 3, characterized in that: The supporting plate movable part includes a movable ring, a bearing and a movable supporting plate, one end of the connecting rod is engaged with the movable ring, and the movable ring extends away from the end of the motor to form a bearing part, and the bearing part, the bearing and the movable supporting plate are sequentially sleeved; at least one connecting block is formed on the inner wall of the fixed seat, and a connecting notch matched with the connecting block is formed on the cylindrical surface of the movable ring, and the fixed seat is fixedly connected to the movable ring through the connecting block and the connecting notch.

9. The coffee bean grinder with quick-release grinding disc assembly and convenient powder cleaning according to claim 1, characterized in that: At least one threaded hole is provided at one end of the bean grinding chamber close to the motor, and a connecting through hole adapted to the threaded hole is provided on the motor; an external bolt is threadedly connected with the threaded hole through the connecting through hole, so that the motor is fixed on the bean grinding chamber.

10. The coffee bean grinder with quick-release grinding disc assembly and convenient powder cleaning according to claim 1, characterized in that: The whole machine body is provided with a control knob electrically connected to the motor, and the control knob is used to adjust the rotation speed of the motor.

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