A new sharpener
By designing a sharpener that includes a pressing component and a driving component, the problem of existing sharpeners being unable to sharpen round blades of different sizes has been solved, achieving convenient sharpening operation and structural simplification.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO XIUYI INTELLIGENT TECH CO LTD
- Filing Date
- 2025-08-19
- Publication Date
- 2026-07-14
AI Technical Summary
Existing sharpeners are difficult to use for sharpening round blades of different sizes, are inconvenient to use, and have a complex structure.
A sharpener structure including a pressing component, an upper cover, a housing, and a lower cover is designed. The drive component drives the blade clamping component to rotate, and the pressing component controls the grinding wheel to sharpen the blade. The slider can adapt to blades of different sizes, and the structure is simple.
It enables convenient grinding of circular blades, is highly adaptable, easy to operate, and has a reasonable structural design.
Smart Images

Figure CN224488667U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of knife sharpener technology, and in particular to a novel knife sharpener. Background Technology
[0002] With the continuous improvement of people's pace of life and the continuous development of the catering industry, the amount of ingredients required has increased significantly. As a result, various processing machines have emerged. However, during use, the wear and tear of the blades on the machines is inevitable.
[0003] In the existing technology, most knife sharpeners are only designed for straight knives or slightly curved knives such as common kitchen knives. For the round blades commonly found in vegetable cutters, most knife sharpeners are difficult to sharpen and are not compatible with different blade sizes, making them inconvenient to use, complex in structure, and difficult to operate.
[0004] Therefore, existing technologies need further improvement and enhancement. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of the existing technology and solve the problems that existing sharpeners have difficulty sharpening round blades of different sizes, are inconvenient to use, and have a relatively complex structure.
[0006] This utility model provides a novel knife sharpener, comprising a pressing component, an upper cover, a housing, and a lower cover arranged sequentially from top to bottom. The upper cover, housing, and lower cover enclose a cavity, and a driving component is disposed within the cavity. The driving component is connected upward to a blade clamping component. A grinding wheel is disposed on the bottom wall of the upper cover, and the pressing component is connected to the grinding wheel. By pressing, the grinding wheel is driven to approach the blade clamping component.
[0007] In a preferred embodiment of this application, the drive assembly includes a motor and a control board, the motor passing through the control board and protruding upward, and the motor output shaft being connected to the blade clamping assembly.
[0008] In a preferred embodiment of this application, the blade clamping assembly includes a clamping platform, a support platform, a threaded disc, and a slider. Two sliders are provided and are symmetrical about the center of the threaded disc. The clamping platform and the support platform clamp the threaded disc, and the slider protrudes from the clamping platform to clamp the blade.
[0009] In a preferred embodiment of this application, a notch is provided at the center of the clamping stage to connect with the threaded disc, and two opposing slots are provided on the surface of the clamping stage, with the slider protruding from the slot.
[0010] In a preferred embodiment of this application, the upper cover has an upper cavity and a lower cavity. A grinding wheel is disposed in the lower cavity, and a linear bearing is disposed in the upper cavity. The pressing component is placed on the upper part of the upper cavity and is connected to the grinding wheel through the linear bearing.
[0011] In a preferred embodiment of this application, the pressing assembly includes a pressing head and a spring, with the spring positioned between the pressing head and the upper cover. A columnar structure is provided at the center of the pressing head and is connected to the grinding wheel through a linear bearing.
[0012] In a preferred embodiment of this application, the upper surface of the threaded disc has a hexagonal boss at its center and threaded grooves that spread outward from the center. The slider moves along the threaded grooves.
[0013] The beneficial effects of this utility model are as follows:
[0014] This application uses a cavity formed by the pressing outer shell and the lower cover to facilitate the storage of the drive component. The drive component drives the blade clamping component to rotate the blade. The slider allows for easy clamping of blades of different sizes, improving the adaptability of the device. The pressing structure of the pressing component can drive the grinding wheel to move vertically, and the grinding wheel can be manually controlled to grind the blade. The grinding of round blades can be achieved through a simple structure, which is convenient to use and has a simple structure. Attached Figure Description
[0015] Figure 1 A general structural diagram of a novel knife sharpener provided for utility model purposes;
[0016] Figure 2 A schematic diagram of the disassembled structure of a novel knife sharpener provided for utility model purposes;
[0017] Figure 3 A schematic diagram of a novel blade clamping assembly for a knife sharpener provided for utility model purposes;
[0018] Figure 4 A cross-sectional view of the overall structure of a novel knife sharpener provided for utility model.
[0019] Figure label:
[0020] 1-1 Lower cover, 1-2 Control board, 1-3 Motor, 1-4 Housing, 1-5 Blade clamping assembly, 1-51 Support platform, 1-52 Threaded disc, 1-53 Slider, 1-54 Clamping platform, 2-1 Grinding wheel, 2-2 Upper cover, 2-3 Linear bearing, 2-4 Spring, 2-5 Pressure head. Detailed Implementation
[0021] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.
[0022] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.
[0023] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0024] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0025] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.
[0026] like Figures 1 to 4 As shown, this utility model provides a novel knife sharpener, including a pressing component, an upper cover 2-2, a housing 1-4, and a lower cover 1-1 arranged sequentially from top to bottom. The upper cover 2-2, the housing 1-4, and the lower cover 1-1 enclose a cavity, and a driving component is arranged inside the cavity. The driving component is connected upward to a blade clamping component 1-5. A grinding wheel 2-1 is arranged on the bottom wall of the upper cover 2-2. The pressing component is connected to the grinding wheel 2-1 and drives the grinding wheel 2-1 to approach the blade clamping component 1-5 by pressing.
[0027] As shown in the figure, the outer shell 1-4 has a cylindrical structure with a slightly larger diameter at the top to accommodate the grinding wheel 2-1. A handle structure is provided on the side wall of the outer shell 1-4 to facilitate the user's grip on the entire sharpener structure.
[0028] Furthermore, the drive assembly includes a motor 1-3 and a control board. The motor 1-3 passes through the control board and protrudes upward. The output shaft of the motor 1-3 is connected to the blade clamping assembly 1-5, so that the blade clamping assembly 1-5 can be rotated by the motor 1-3, thereby driving the clamped circular blade to move.
[0029] For ease of operation, a start switch can be installed on the side wall of the housing 1-4. The start switch can control the motor 1-3, thereby controlling the start, stop and forward / reverse rotation of the drive components in real time. The structure is simple and the operation is convenient.
[0030] In one alternative embodiment, as shown in the figure, the blade clamping assembly 1-5 includes a clamping platform 1-54, a support platform 1-51, a threaded disc 1-52, and a slider 1-53. Two sliders 1-53 are provided and are symmetrical about the center of the threaded disc 1-52. The clamping platform 1-54 and the support platform 1-51 clamp the threaded disc 1-52, and the slider 1-53 protrudes from the clamping platform 1-54 to clamp the blade.
[0031] The clamping platform 1-54 has a notch at its center to connect with the threaded disc 1-52. Two opposing slots are formed on the surface of the clamping platform 1-54, and the slider 1-53 protrudes from these slots. The threaded disc 1-52 has a hexagonal boss at the center of its upper surface, surrounded by threaded grooves that radiate outwards from the center. The slider 1-53 moves along these threaded grooves.
[0032] During use, the distance between sliders 1-53 can initially be at its shortest distance. This structure allows for the use of smaller diameter circular blades. When switching to a larger diameter circular blade, an Allen wrench can be used in conjunction with the hexagonal hole of the threaded disc 1-52. Due to the clamping of the clamping platform 1-54 and the support platform 1-51, the head of slider 1-53 protrudes from the slot on the surface of the clamping platform 1-54. The two slots are laterally extending square structures. Because slider 1-53 is restricted, under the rotation of the bottom threaded disc 1-52, the two sliders 1-53 can only move laterally along the square of the slots, thereby increasing the distance between the two sliders 1-53. The position of slider 1-53 can be controlled by manually rotating the threaded disc 1-52, thus adapting to circular blades of different diameters. The operation is simple and the adaptability is stronger.
[0033] It is understandable that there are generally standard sizes for different sized round blades, so when adjusting them, you only need to set a few specific settings.
[0034] As a preferred embodiment of this application, as shown in the figure, the upper cover 2-2 has an upper cavity and a lower cavity. A grinding wheel 2-1 is disposed in the lower cavity, and a linear bearing 2-3 is disposed in the upper cavity. The pressing component is placed on the upper part of the upper cavity and is connected to the grinding wheel 2-1 through the linear bearing 2-3.
[0035] Furthermore, the pressing assembly includes a pressure head 2-5 and a spring 2-4. The spring 2-4 is placed between the pressure head 2-5 and the upper cover 2-2. A columnar structure is set in the center of the pressure head 2-5 and is connected to the grinding wheel 2-1 through the linear bearing 2-3. In use, the appropriate circular blade can be placed first, and the motor 1-3 can be turned on to drive the blade to rotate. At this time, the user can press the pressure head 2-5, which will drive the grinding wheel 2-1 to move downward through the columnar structure of the pressure head 2-5. During this process, the grinding wheel 2-1 will gradually move downward and approach the blade. Then, the grinding wheel 2-1 will contact the cutting edge of the blade, thereby achieving the effect of sharpening. After sharpening is completed, the user releases the pressure on the pressure head 2-5. Under the action of the reaction force of the spring 2-4, the pressure head 2-5 gradually returns to its original position and drives the grinding wheel 2-1 to move slowly upward. Then, the grinding wheel 2-1 slowly moves away from the blade. The motor 1-3 is turned off, and the entire sharpening work is completed.
[0036] Understandably, the structure of the grinding wheel 2-1 has been adapted to accommodate round blades. For example, to grind two different sized blades, a grinding structure can be set at the position corresponding to the blade edge on the grinding wheel 2-1, thereby improving the grinding effect on blades of different sizes. For example, two high-hardness grinding wheels are fixed on the grinding wheel 2-1 by screws, and the two worn grinding wheels can be replaced in subsequent use.
[0037] To improve control safety, the control switch can be set as a safety switch. The safety switch is connected to the control board and can only be turned on when the pressing component of the upper cover 2-2 part is installed on the main body, thereby energizing the control board.
[0038] For any parts not mentioned in this application, existing technologies may be used or referenced.
[0039] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.
[0040] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.
Claims
1. A novel knife sharpener, characterized in that, The device includes a pressing component, an upper cover, a housing, and a lower cover arranged sequentially from top to bottom. The upper cover, the housing, and the lower cover enclose a cavity. A driving component is disposed within the cavity. The driving component is connected upward to a blade clamping component. A grinding wheel is disposed on the bottom wall of the upper cover. The pressing component is connected to the grinding wheel and moves the grinding wheel closer to the blade clamping component by pressing.
2. The novel knife sharpener as described in claim 1, characterized in that, The drive assembly includes a motor and a control board. The motor passes through the control board and protrudes upward. The motor output shaft is connected to the blade clamping assembly.
3. The novel knife sharpener as described in claim 2, characterized in that, The blade clamping assembly includes a clamping platform, a support platform, a threaded disc, and a slider. Two sliders are provided and are symmetrical about the center of the threaded disc. The clamping platform and the support platform clamp the threaded disc, and the slider protrudes from the clamping platform to clamp the blade.
4. The novel knife sharpener as described in claim 3, characterized in that, The clamping platform has a notch at its center to connect with the threaded disc, and two opposing slots are formed on the surface of the clamping platform, with the slider protruding from the slots.
5. A novel knife sharpener as described in claim 4, characterized in that, The upper cover has an upper cavity and a lower cavity. The grinding wheel is disposed in the lower cavity, and a linear bearing is disposed in the upper cavity. The pressing assembly is placed on the upper part of the upper cavity and is connected to the grinding wheel through the linear bearing.
6. A novel knife sharpener as described in claim 5, characterized in that, The pressing assembly includes a pressure head and a spring. The spring is placed between the pressure head and the upper cover. A columnar structure is provided at the center of the pressure head and passes through the linear bearing to connect with the grinding wheel.
7. A novel knife sharpener as described in claim 6, characterized in that, The upper surface of the threaded disc has a hexagonal boss at its center, surrounded by threaded grooves that spread outwards from the center. The slider moves along the threaded grooves.