Grinding barrel and grinding machine

By designing the cylinder and rotating blades at the lower end of the cover of the grinding cylinder, the problem of material residue during disassembly of the grinding module is solved, achieving material saving and ease of disassembly.

CN224671336UActive Publication Date: 2026-08-25BEAR ELECTRICAL APPLIANCE CO LTD
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Patent Information

Application Number
CN202521924131.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-08
Publication Date
2026-08-25
Estimated Expiration
2035-09-08

AI Technical Summary

Technical Problem

When disassembling the grinding module of an existing grinding machine, material remains inside the grinding cylinder even after the material outlet of the hopper is closed, resulting in material waste and inconvenience in disassembly.

Method used

A cylinder body is installed at the lower end of the cover of the grinding cylinder. A rotating plate is sleeved on the outside of the cylinder body and locked between the cover and the cylinder body. By rotating the rotating plate, the feed inlet can be connected to or blocked by the shell, thereby controlling the material.

Benefits of technology

This avoids the waste of materials entering the grinding cylinder, simplifies the disassembly process of the grinding module, saves materials, and improves ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a grinding cylinder and grinding machine, and the grinding cylinder comprises a shell, which is a hollow structure, a cover body arranged on the upper end of the shell, wherein the cover body comprises a cylinder body arranged on the lower end of the cover body and penetrating into the shell, a feeding port arranged on the cover body, a rotating piece sleeved on the outer side of the cylinder body and clamped between the cover body and the cylinder body, a first through hole formed in the rotating piece and corresponding to the feeding port in position, wherein the rotating piece rotates around the cylinder body, is rotated to at least partially coincide with the feeding port through the first through hole, so that the feeding port is communicated with the interior of the shell, is rotated to the rotating piece to block the feeding port, so that the feeding port is not communicated with the interior of the shell, at this time, the material cannot enter the grinding cylinder through the feeding port, the material entering the grinding cylinder is avoided to cause waste and affect the disassembly and cleaning of the grinding module, the material is saved, and the utility model is convenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of grinding machine technology, and in particular to grinding cylinder and grinding machine. Background Technology

[0002] A grinder, such as a coffee grinder or coffee machine, typically includes a grinding drum and a hopper located at the top of the drum. The hopper holds the material, such as coffee beans, and has an outlet at the bottom that connects to the inlet of the grinding drum, allowing the material to enter. The grinding drum is the main component of the grinder, responsible for grinding the incoming material into powder. It is the main component of a coffee grinder or coffee grinder-type coffee machine, responsible for grinding the coffee beans entering the grinding module into coffee powder.

[0003] Currently, the grinding module can be removed from the bottom of the grinding cylinder for cleaning, and the hopper can also be detached from the grinding cylinder. The hopper's lower outlet usually has a self-locking mechanism to prevent spillage. However, when the grinding cylinder is removed from the bottom of the coffee machine for cleaning, even if the outlet at the bottom of the hopper is locked, material may still remain in the channel within the grinding cylinder between the hopper and the grinding module. This causes spillage when the grinding module is removed, resulting in unnecessary waste of coffee beans and inconvenience in disassembling and cleaning the grinding module.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model discloses a grinding cylinder and a grinding machine to solve the problem that material remains in the channel of the grinding cylinder after the material outlet of the hopper is closed, resulting in material waste and affecting the disassembly and cleaning of the grinding module.

[0006] The technical solution adopted in this utility model is as follows: A grinding cylinder includes: a shell, which is a hollow structure; a cover, disposed at the upper end of the shell, the cover including: a cylinder, disposed at the lower end of the cover, passing through and extending into the shell; a feed inlet, disposed on the cover; and a rotating plate, sleeved on the outside of the cylinder, engaging between the cover and the cylinder, the rotating plate having a first through hole, the first through hole being positioned corresponding to the feed inlet; wherein, the rotating plate rotates around the cylinder, rotating until the first through hole and the feed inlet at least partially overlap, so that the feed inlet communicates with the interior of the shell, and rotating until the rotating plate blocks the feed inlet, so that the feed inlet does not communicate with the interior of the shell.

[0007] A further technical solution is that the rotating plate includes: a second through hole, which is opened in the middle of the rotating plate and communicates with the first through hole on its side; wherein the cylinder passes through the second through hole.

[0008] A further technical solution is that a top plate is provided at the upper end of the shell, and an outer edge is provided on the outer side of the cylinder; the rotating plate includes an annular groove, which is opened at the lower end of the rotating plate and is positioned corresponding to the outer side of the second through hole; wherein, the inner side of the rotating plate is engaged between the annular groove and the top plate, and the outer edge is engaged in the annular groove.

[0009] A further technical solution is that a second sliding groove is formed on the outer side of the housing; the rotating plate includes a lever, the inner side of which passes through the second sliding groove and is fixedly connected to the outer side of the rotating plate.

[0010] A further technical solution is that a third through hole is opened on the side of the rotating plate, and the lever includes: a knob; a connecting rod, the inner side of which is inserted into the third through hole and connected to the rotating plate by a screw, and the outer side of which passes through the second sliding groove and is connected to the knob.

[0011] This utility model discloses a grinding machine, which includes: a grinding cylinder as described above; a motor, fixed inside the cylinder, with the output end of the motor passing through the lower end of the cylinder and extending into the housing; a grinding module, with its outer side inserted into the lower end of the inner side of the housing and its inner side snapped into the outer side of the rotating plate, and a blade assembly rotatably disposed inside, the blade assembly being coupled to the output end of the motor.

[0012] A further technical solution is that an inner edge extending from the upper end of the grinding module is provided on the inner side of the grinding module; wherein, the housing is sleeved on the outer side of the inner edge and snapped with the outer side of the inner edge, and the outer side of the rotating plate is snapped between the inner edge and the top plate.

[0013] A further technical solution is that the grinding module includes: a first sliding groove formed on the inner wall of the inner edge; the rotating plate includes: a limiting block disposed at the lower end of the rotating plate, which is inserted into the first sliding groove and can slide within the first sliding groove.

[0014] A further technical solution is that the first slide groove has a plurality of grooves, which are circumferentially spaced on the inner wall of the inner edge, and the number and position of the limiting blocks correspond to the first slide groove.

[0015] A further technical solution is that the grinding module includes: a limiting strip, which is horizontally disposed on the inner wall of the inner edge and located in the first slide groove, with one end connected to one side of the first slide groove and the other end spaced apart from the other side of the first slide groove, and the width of the space being greater than the width of the limiting block; the limiting block includes: a slot, which is opened on the outside of the limiting block, and the limiting strip is inserted into the slot.

[0016] The beneficial effects of this utility model embodiment are as follows: (I) The grinding cylinder of this utility model is provided with a cylinder body at the lower end of the cover of the grinding cylinder. The cylinder body passes through and extends into the housing. A rotating plate is sleeved on the outside of the cylinder body and snapped between the cover and the cylinder body. The rotating plate rotates around the cylinder body. The first through hole on the rotating plate at least partially coincides with the feed port on the cover body, so that the feed port is connected to the housing. When it is necessary to disassemble the grinding module, the rotating plate is rotated until the rotating plate blocks the feed port. At this time, the first through hole and the feed port are misaligned so that the feed port is not connected to the inside of the housing. The material will not enter the grinding cylinder through the feed port, avoiding the waste caused by the material entering the grinding cylinder and affecting the disassembly and cleaning of the grinding module. It saves materials and is convenient to use.

[0017] (ii) Further, when installing the grinding module, insert the grinding module into the lower inner side of the housing. At this time, the rotating plate is in a position that completely covers the feed inlet. The limiting block of the rotating plate is inserted into the interval in the first sliding groove. Rotate the rotating plate until the first through hole and the feed inlet are at least partially overlapped. The limiting strip is inserted into the slot of the limiting block, connecting the feed inlet and the inside of the housing while fixing the grinding module, thus enabling grinding. When disassembling the grinding module, rotate the rotating plate to a position that covers the feed inlet. The limiting block disengages from the slot and enters the interval. The grinding module can then be directly removed. The grinding module is easy to install and disassemble, and the overall grinding machine uses fewer structural elements, has a small size, and low manufacturing cost. Attached Figure Description

[0018] Figure 1 This is an isometric view of the grinding machine of this utility model.

[0019] Figure 2 This is a cross-sectional view of the grinding machine of this utility model.

[0020] Figure 3 This is an axonometric view of the rotating blade in the grinding cylinder of this utility model from a first-view perspective.

[0021] Figure 4 This is an axonometric view of the rotating blade in the grinding cylinder of this utility model from a second perspective.

[0022] Figure 5 This is an isometric view of the grinding module in the grinding machine of this utility model.

[0023] In the picture: 1. Shell; 11. Top plate; 12. Second slide groove; 2. Cover; 21. Inlet; 22. Cylinder; 23. Disc; 231. Outer edge; 3. Rotating plate; 31. First through hole; 32. Second through hole; 33. Third through hole; 34. Annular groove; 35. Limiting block; 351. Slot; 4. Lever; 41. Button; 42. Connecting rod; 5. Motor; 6. Grinding module; 61. Inner edge; 611. Slot; 62. First slide groove; 63. Limiting strip; 7. Blade assembly. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0025] First embodiment: This embodiment discloses a grinding cylinder.

[0026] The grinding cylinder includes a shell 1, a cover 2, and a rotating plate 3.

[0027] Figure 1 This is an isometric view of the grinding machine of this utility model. Figure 1 As shown, the shell 1 is a hollow structure. Specifically, the shell 1 is a cylindrical body 22 with an opening at the lower end, and a top plate 11 is provided at the upper end of the shell 1.

[0028] Figure 2 This is a cross-sectional view of the grinding machine of this utility model. (See image below.) Figure 2 As shown, the cover 2 is located at the upper end of the housing 1, and the cover 2 includes a cylindrical body 22 and a feed inlet 21. The cylindrical body 22 is located at the lower end of the cover 2, passing through and extending into the housing 1. The feed inlet 21 is located on the cover 2. Figure 3 This is an axonometric view of the rotating blade in the grinding cylinder of this utility model from a first-view perspective. Figure 3 As shown, the rotating plate 3 is sleeved on the outside of the cylinder 22 and snapped between the cover 2 and the cylinder 22. A first through hole 31 is opened on the rotating plate 3, and the position of the first through hole 31 corresponds to the feed inlet 21. The rotating plate 3 rotates around the cylinder 22, rotating until the first through hole 31 and the feed inlet 21 at least partially overlap, so that the feed inlet 21 communicates with the inside of the shell 1, and rotating until the rotating plate 3 blocks the feed inlet 21, so that the feed inlet 21 does not communicate with the inside of the shell 1.

[0029] like Figure 3 As shown, exemplarily, the rotating plate 3 includes a second through hole 32. The second through hole 32 is formed in the middle of the rotating plate 3 and communicates with the first through hole 31 on its side. The cylinder 22 passes through the second through hole 32. An outer edge 231 is provided on the outer side of the cylinder 22. Figure 4 This is an axonometric view of the rotating blade in the grinding cylinder of this utility model from a second perspective. Figure 4As shown, the rotating plate 3 includes an annular groove 34, which is located at the lower end of the rotating plate 3, corresponding to the outer side of the second through hole 32. The inner side of the rotating plate 3 is engaged between the annular groove 34 and the top plate 11, restricting the axial movement of the rotating plate 3. The outer edge 231 is engaged within the annular groove 34, restricting the circumferential movement of the rotating plate 3, thus improving the stability of the rotating plate 3 during rotation. Figure 2 As shown, preferably, the lower end of the cylinder 22 is screwed to the disc 23, and the outer edge 231 is set on the outside of the disc 23. During installation, the rotating piece 3 is first inserted, and then the disc 23 is installed, which facilitates the installation, fixing and disassembly of the rotating piece 3.

[0030] like Figure 1 As shown, a second sliding groove 12 is further formed on the outer side of the housing 1. The rotating plate 3 includes a lever 4, the inner side of which passes through the second sliding groove 12 and is fixedly connected to the outer side of the rotating plate 3. By moving the lever 4, the lever 4 drives the rotating plate 3 to rotate, which is convenient for user use. At the same time, the second sliding groove 12 limits the range of movement of the lever 4, preventing the user from excessively rotating the lever 4 and the rotating plate 3, which could damage the components. Figure 4 As shown, for example, the rotating plate 3 has a third through hole 33 on its side, and the lever 4 includes a knob 41 and a connecting rod 42. The inner side of the connecting rod 42 is inserted into the third through hole 33 and connected to the rotating plate 3 with a screw, and the outer side passes through the second sliding groove 12 to connect to the knob 41. The lever 4 and the rotating plate 3 are easy to install and remove.

[0031] In this embodiment, a cylinder 22 is provided at the lower end of the cover 2 of the grinding cylinder. The cylinder 22 passes through and extends into the housing 1. A rotating plate 3 is sleeved on the outside of the cylinder 22 and engaged between the cover 2 and the cylinder 22. The rotating plate 3 rotates around the cylinder 22. The first through hole 31 on the rotating plate 3 at least partially coincides with the feed inlet 21 on the cover 2, so that the feed inlet 21 is connected to the housing 1. When it is necessary to disassemble the grinding module 6, the rotating plate 3 is rotated until the rotating plate 3 blocks the feed inlet 21. At this time, the first through hole 31 is misaligned with the feed inlet 21, so that the feed inlet 21 is not connected to the inside of the housing 1. The material will not enter the grinding cylinder through the feed inlet 21, avoiding the waste caused by the material entering the grinding cylinder and affecting the disassembly and cleaning of the grinding module 6. This saves materials and is convenient to use.

[0032] Second embodiment: This embodiment discloses a grinding machine.

[0033] For example, a grinder can be a coffee grinder, a coffee maker, or a powder grinder, etc.

[0034] like Figure 1 and Figure 2As shown, the grinding machine includes a grinding cylinder, a motor 5, and a grinding module 6 according to the first embodiment. The motor 5 is fixed inside the cylinder 22, and the output end of the motor 5 passes through the lower end of the cylinder 22 and extends into the housing 1. The outer side of the grinding module 6 is engaged with the lower inner side of the housing 1 to restrict the rotation of the grinding module 6 relative to the housing 1. The inner side of the grinding module 6 is engaged with the outer side of the rotating plate 3, and a blade assembly 7 is rotatably disposed inside, which is coupled to the output end of the motor 5. For example, the upper end of the blade assembly 7 is engaged with the output end of the motor 5.

[0035] like Figure 2 and Figure 5 As shown, further, an inner edge 61 extending from the upper end of the grinding module 6 is provided on the inner side of the grinding module 6. The housing 1 is sleeved on the outer side of the inner edge 61 and snaps into the outer side of the inner edge 61. For example, a slot 611 is vertically opened on the outer side of the inner edge 61, and an insert is provided on the inner side of the housing 1, which is inserted into the slot 611.

[0036] Figure 5 This is an isometric view of the grinding module in the grinding machine of this utility model. Figure 2 , Figure 4 and Figure 5 As shown, the grinding module 6 further includes a first groove 62. The first groove 62 is formed on the inner wall of the inner edge 61. The rotating plate 3 includes a limiting block 35, which is disposed at the lower end of the rotating plate 3, inserted into the first groove 62, and can slide within the first groove 62. The first groove 62 restricts the rotation range of the rotating plate 3. When the limiting block 35 slides to one end of the first groove 62, the first through hole 31 completely overlaps with the feed inlet 21. When the limiting block 35 slides to the other end of the first groove 62, the first through hole 31 is completely offset from the feed inlet 21, and the feed inlet 21 is covered by the rotating plate 3. Specifically, there are several first grooves 62, which are circumferentially spaced on the inner wall of the housing 1. The number and position of the limiting blocks 35 correspond to the first grooves 62.

[0037] Preferably, the grinding module 6 includes a limiting strip 63. The limiting strip 63 is horizontally disposed on the inner wall of the inner edge 61, located within the first sliding groove 62. One end of the limiting strip 63 is connected to one side of the first sliding groove 62, and the other end is spaced from the other side of the first sliding groove 62. The width of the gap is greater than the width of the limiting block 35, allowing the limiting block 35 to enter and exit the first sliding groove 62 through the gap. The limiting block 35 includes a slot 351, which is formed on the outer side of the limiting block 35. The limiting strip 63 is inserted into the slot 351.

[0038] In this embodiment, when installing the grinding module 6, the grinding module 6 is inserted into the lower inner side of the housing 1. At this time, the rotating plate 3 is in a position that completely covers the feed inlet 21. The limiting block 35 of the rotating plate 3 is inserted into the interval in the first sliding groove 62. The rotating plate 3 is rotated until the first through hole 31 at least partially overlaps with the feed inlet 21. The limiting strip 63 is inserted into the slot 351 of the limiting block 35, connecting the feed inlet 21 with the inside of the housing 1 while fixing the grinding module 6, thus enabling grinding. When disassembling the grinding module 6, the rotating plate 3 is rotated to a position that covers the feed inlet 21. The limiting block 35 disengages from the slot 351 and enters the interval, and the grinding module 6 can be directly pulled out. The grinding module 6 is easy to install and disassemble, and the overall grinding machine uses fewer structural elements, has a small size, and low manufacturing cost.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A grinding cylinder, characterized in that, The grinding cylinder includes: The shell is a hollow structure; A cover body, disposed at the upper end of the housing, the cover body comprising: A cylindrical body is located at the lower end of the cover, passing through and extending into the housing; The inlet is located on the cover. A rotating plate is sleeved on the outside of the cylinder and snapped between the cover and the cylinder. A first through hole is opened on the rotating plate, and the position of the first through hole corresponds to the feed inlet. The rotating plate rotates around the cylinder until the first through hole and the feed inlet at least partially overlap, so that the feed inlet communicates with the inside of the shell, and then rotates until the rotating plate blocks the feed inlet, so that the feed inlet does not communicate with the inside of the shell.

2. The grinding cylinder according to claim 1, characterized in that, The rotating plate includes: The second through hole is formed in the middle of the rotating plate and communicates with the first through hole on its side. The cylinder passes through the second through hole.

3. The grinding cylinder according to claim 2, characterized in that: A top plate is provided at the upper end of the shell, and an outer edge is provided on the outer side of the cylinder; the rotating plate includes: An annular groove is formed at the lower end of the rotating plate, and its position corresponds to the outer side of the second through hole; The inner side of the rotating plate is engaged between the annular groove and the top plate, and the outer edge is engaged within the annular groove.

4. The grinding cylinder according to claim 1, characterized in that, A second sliding groove is formed on the outer side of the housing; the rotating plate includes: The lever passes through the second slide groove on its inner side and is fixedly connected to the outer side of the rotating plate.

5. The grinding cylinder according to claim 4, characterized in that: The rotating plate has a third through hole on its side, and the lever includes: Toggle switch; The connecting rod is inserted into the third through hole on the inner side and connected to the rotating plate screw, and passes through the second slide groove on the outer side to connect to the knob.

6. A grinding mill, characterized in that, The grinding mill includes: The grinding cylinder as described in any one of claims 1 to 5; A motor is fixed inside the cylinder, and the output end of the motor passes through the lower end of the cylinder and extends into the housing. The grinding module is inserted into the lower end of the inner side of the housing on the outside and snapped into the outside of the rotating plate on the inside. The blade assembly is rotatably arranged inside, and the blade assembly is coupled to the output end of the motor.

7. The grinding machine according to claim 6, characterized in that: The inner edge of the grinding module extends from the upper end of the grinding module. The housing is sleeved on the outer side of the inner edge and snapped into the outer side of the inner edge, and the outer side of the rotating piece is snapped into the space between the inner edge and the top plate.

8. The grinding machine according to claim 7, characterized in that, The grinding module includes: The first groove is formed on the inner wall of the inner edge; The rotating plate includes: A limiting block is disposed at the lower end of the rotating plate, is engaged in the first sliding groove, and can slide within the first sliding groove.

9. The grinding machine according to claim 8, characterized in that: The first slide groove has a plurality of grooves, which are circumferentially spaced on the inner wall of the inner edge, and the number and position of the limiting blocks correspond to the first slide groove.

10. The grinding machine according to claim 8, characterized in that: The grinding module includes: A limiting strip is horizontally disposed on the inner wall of the inner edge, located in the first slide groove. One end is connected to one side of the first slide groove, and the other end is spaced apart from the other side of the first slide groove, and the width of the gap is greater than the width of the limiting block. The limiting block includes: A slot is provided on the outside of the limiting block, and the limiting strip is inserted into the slot.