Electric knife sharpener

Abstract

The utility model provides an electric knife sharpener, which relates to the technical field of household electric tools and comprises a knife sharpening equipment main body, a knife sharpening hole arranged at the top of the knife sharpening equipment main body, a motor fixed on the inner wall of the knife sharpening equipment main body, a double-sided concave grinding wheel fixed at one end of the motor and a bearing plate fixed at the bottom of the motor, the mode of installing a double-face concave grinding wheel is adopted for solving the problems that common electric knife grinders in the market mostly adopt convex grinding wheels, due to the fact that the friction coefficient between the grinding wheels and a knife edge is low, the knife grinding efficiency is low, and a motor of the electric knife grinder and a base are connected in a rigid fastening mode usually, and the knife grinding efficiency is low. Vibration generated during operation of the motor can cause large noise, the use experience of a user is affected, and negative influences are caused on the structural stability of the knife sharpener and the knife sharpening quality of a knife, in order to improve the performance of the knife sharpener and the user experience, it is necessary to optimize the design of the knife sharpening wheel, connection between the motor and the base is improved, and therefore vibration and noise are reduced; and a more efficient and quiet knife sharpening process is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of household electric tools, in particular to an electric knife sharpener. Background Art

[0002] An electric knife sharpener is an electric tool for home or professional use, designed for quickly and accurately grinding and sharpening various types of knives. It usually consists of an electric motor, one or more grinding wheels, a fixed or adjustable tool guide system, and a main structure that carries the grinding wheel. The electric knife sharpener drives the grinding wheel to rotate at high speed through the motor. When the knife passes through the grinding wheel at the appropriate angle and pressure, the blade will be ground and sharpened. The use of this tool can significantly improve the efficiency and effectiveness of knife sharpening, and is especially suitable for users who need to keep their knives sharp frequently.

[0003] In the prior art, most common electric knife sharpeners on the market use convex grinding wheels for sharpening. Although this design is simple, the grinding wheel has a low contact friction coefficient with the blade, resulting in low sharpening efficiency. The connection between the motor and the base of the electric knife sharpener is usually rigidly fastened, that is, there is no buffering or shock-absorbing measures between the two. In this way, the vibration generated when the motor is running will be directly transmitted to the base, or even the entire sharpener body, causing a lot of noise. This direct vibration transmission not only affects the user experience, but may also have a negative impact on the structural stability of the sharpener and the sharpening quality of the knife. In order to improve the performance and user experience of the electric knife sharpener, it is necessary to optimize the design of the sharpening wheel and improve the connection method between the motor and the base to reduce vibration and noise and achieve a more efficient and quiet sharpening process. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides an electric knife sharpener.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an electric knife sharpener, comprising a knife sharpening device body, a knife sharpening hole is opened at the top of the knife sharpening device body, a motor is fixed to the inner wall of the knife sharpening device body, a double-sided concave grinding wheel is fixed at one end of the motor, a pressure plate is fixed at the bottom of the motor, a limiting ring is fixed at the bottom of the pressure plate, a buffer spring is fixed at the bottom of the pressure plate, a bottom fixing plate is fixed at one end of the buffer spring, a limiting ring is fixed at the top of the bottom fixing plate, a push rod is fixed at the bottom of the pressure plate, a friction column is fixed at the bottom of the push rod, an inner friction column is slidably connected to the circumference of the friction column, and the bottom of the inner friction column is fixed to the top of the bottom fixing plate. In the prior art, most common electric knife sharpeners on the market use convex grinding wheels for sharpening. Although this design is simple, the sharpening efficiency is low due to the small contact friction coefficient between the grinding wheel and the blade. The connection between the motor and the base of the electric knife sharpener is usually rigidly fastened, that is, there is no buffering or shock-absorbing measures between the two. In this way, the vibration generated when the motor is running will be directly transmitted to the base, or even the entire knife sharpener body, thereby causing a large noise. This direct vibration transmission not only affects the user's experience, but may also have a negative impact on the structural stability of the sharpener and the sharpening quality of the knife. In order to improve the performance and user experience of the electric sharpener, it is necessary to optimize the design of the sharpening wheel and improve the connection method between the motor and the base to reduce vibration and noise and achieve a more efficient and quiet sharpening process. In response to such problems, the utility model solves the problem by installing a double-sided concave grinding wheel. When the equipment is running, by setting a double-sided concave grinding wheel in the electric sharpener, the sharpening work efficiency can be effectively improved. The design of the concave grinding wheel makes the contact area between the blade and the grinding wheel smaller during the grinding process, and increases the friction coefficient and increases the friction force to improve the sharpening efficiency, thereby speeding up the sharpening speed, improving the sharpening efficiency, and simplifying the operation process. At the same time, the vibration during the operation of the motor is absorbed by the buffer spring and converted into elastic potential energy. When the buffer spring releases the elastic potential energy, the larger friction between the friction column and the inner friction column prevents the release of the elastic potential energy, and converts the elastic potential energy into internal energy, thereby effectively reducing noise, achieving the effect of improving work efficiency and reducing noise.

[0006] Preferably, finger grooves are provided at both ends of the knife sharpening device body, and opposing buttons are provided at both ends of the knife sharpening device body. In the prior art, when a worker operates an electric knife sharpener to perform knife sharpening operations, due to the fast running speed of the grinding wheel, improper operation or insufficient safety measures may easily cause finger injuries. Once the fingers touch the rotating grinding wheel, they will be injured due to the impact force. The vibration and noise generated by the knife sharpener during operation will also distract the operator's attention and increase the risk of misoperation. To address such problems, the utility model solves the problem by installing opposing buttons, so that when the worker uses it, he must press the button on one side before the grinding wheel on the other side rotates, so that the user's hands are forcibly occupied during operation, preventing the user from misoperating, thereby achieving the effect of improving the safety of the equipment.

[0007] Preferably, a fixing nail is fixed to the side of the pressure plate, and a limiting rod is slidably connected to the circumference of the fixing nail. The inner wall of the limiting rod is slidably connected to the circumference of the fixing nail, and the fixing nail is fixed to the bottom fixing plate. In the prior art, when the equipment is subjected to a large vibration and exceeds the limit compression length of the buffer spring, the buffer spring rigidity will be deformed, resulting in the equipment being unable to be used normally, thereby reducing the service life of the equipment. To solve such problems, the utility model adopts the method of installing a limiting rod to achieve a solution, so that when the impact intensity exceeds the shock-absorbing range, the limiting rod prevents the vibration impact through its own rigid support. The limiting rod is installed on the outside through a fixing nail, which is easy to replace, thereby achieving the effect of increasing the service life of the equipment.

[0008] Preferably, a bottom rectangular groove is provided at the bottom of the main body of the knife sharpening device, and a rubber platform is fixed to the inner wall of the bottom rectangular groove to improve the shock absorbing effect of the device.

[0009] Preferably, an anti-skid groove is provided at the bottom of the rubber platform to prevent the device from slipping and improve the user experience.

[0010] Preferably, the rubber platform is configured as a quadrangular platform, which increases the contact area between the rubber platform and the desktop without increasing the material used, thereby increasing the friction and improving the user experience.

[0011] Preferably, a covering module is detachably connected to the surface of the main body of the knife sharpening device, and a knife sharpening hole is provided on the surface of the covering module. The covering module improves modular design, facilitates subsequent maintenance, and reduces subsequent maintenance costs.

[0012] Beneficial Effects

[0013] 1. In the prior art, most common electric knife sharpeners on the market use convex grinding wheels for sharpening. Although this design is simple, the grinding wheel has a low contact friction coefficient with the blade, resulting in low sharpening efficiency. The connection between the motor and the base of the electric knife sharpener is usually rigidly fastened, that is, there is no buffering or shock-absorbing measures between the two. In this way, the vibration generated when the motor is running will be directly transmitted to the base, or even the entire sharpener body, causing a lot of noise. This direct vibration transmission not only affects the user experience, but may also have a negative impact on the structural stability of the sharpener and the sharpening quality of the knife. In order to improve the performance and user experience of the electric knife sharpener, it is necessary to optimize the design of the sharpening wheel and improve the connection between the motor and the base to reduce vibration and noise. To achieve a more efficient and quiet knife sharpening process, the utility model adopts the method of installing a double-sided concave grinding wheel to solve this problem. When the equipment is running, by arranging a double-sided concave grinding wheel in the electric knife sharpener, the working efficiency of knife sharpening can be effectively improved. The design of the concave grinding wheel makes the contact area between the blade and the grinding wheel smaller during the grinding process, and increases the friction coefficient and increases the friction force to improve the sharpening efficiency, thereby speeding up the sharpening speed, improving the sharpening efficiency, and simplifying the operating process. At the same time, the vibration during the operation of the motor is absorbed by the buffer spring and converted into elastic potential energy. When the buffer spring releases the elastic potential energy, the larger friction between the friction column and the inner friction column prevents the release of the elastic potential energy, and converts the elastic potential energy into internal energy, thereby effectively reducing noise, thereby achieving the effect of improving work efficiency and reducing noise.

[0014] 2. In the prior art, when a worker operates an electric knife sharpener to perform knife sharpening operations, due to the high speed of the grinding wheel, improper operation or insufficient safety measures can easily cause finger injuries. Once the fingers touch the rotating grinding wheel, they will be injured due to the impact force. The vibration and noise generated during the operation of the knife sharpener will also distract the operator's attention and increase the risk of misoperation. To address such problems, the utility model solves this problem by installing opposing buttons, which ensures that when a worker uses the tool, he must press one side button before the other side grinding wheel rotates, forcibly occupying the user's hands during operation to prevent the user from misoperating, thereby achieving the effect of improving the safety of the equipment.

[0015] 3. In the prior art, when the equipment is subjected to a large vibration and exceeds the limit compression length of the buffer spring, the buffer spring will be deformed rigidly, causing the equipment to be unable to be used normally and reducing the service life of the equipment. To address this problem, the utility model solves it by installing a limiting rod. When the impact intensity exceeds the shock-absorbing range, the limiting rod prevents the vibration impact through its own rigid support. The limiting rod is installed on the outside through a fixing nail, which is easy to replace, thereby achieving the effect of increasing the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the rubber platform of the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the double-sided concave grinding wheel of the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the limiting rod of the utility model;

[0020] Figure 5 It is a cross-sectional view of the friction column of the utility model.

[0021] Legend:

[0022] 1. Sharpening equipment body; 101. Cover module; 102. Sharpening hole; 2. Motor; 201. Double-sided concave grinding wheel; 202. Pressure plate; 203. Buffer spring; 204. Limiting ring; 205. Push rod; 206. Friction column; 207. Inner friction column; 208. Bottom fixing plate; 3. Finger groove; 301. Opposite button; 4. Bottom moment groove; 401. Rubber table; 402. Anti-skid groove; 5. Fixing nail; 501. Limiting rod. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0024] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings. Specific embodiment:

[0026] Reference Figure 1-5The electric knife sharpener comprises a knife sharpening device body 1, a knife sharpening hole 102 is opened on the top of the knife sharpening device body 1, a motor 2 is fixed to the inner wall of the knife sharpening device body 1, a double-sided concave grinding wheel 201 is fixed to one end of the motor 2, a pressure plate 202 is fixed to the bottom of the motor 2, a limiting ring 204 is fixed to the bottom of the pressure plate 202, a buffer spring 203 is fixed to the bottom of the pressure plate 202, a bottom fixing plate 208 is fixed to one end of the buffer spring 203, a limiting ring 204 is fixed to the top of the bottom fixing plate 208, a push rod 205 is fixed to the bottom of the pressure plate 202, and a bottom of the push rod 205 A friction column 206 is fixed, and an inner friction column 207 is slidably connected to the circumference of the friction column 206. The bottom of the inner friction column 207 is fixed to the top of the bottom fixing plate 208. Most common electric knife sharpeners on the market use convex grinding wheels for sharpening. Although this design is simple, the grinding wheel and the blade have a small contact friction coefficient, resulting in low sharpening efficiency. The connection between the motor 2 and the base of the electric knife sharpener is usually rigidly fastened, that is, there is no buffering or shock-absorbing measures between the two, so that the vibration generated when the motor 2 is running will be directly transmitted to the base, and even the entire sharpener body , thus causing a lot of noise. This direct vibration transmission not only affects the user's experience, but may also have a negative impact on the structural stability of the sharpener and the sharpening quality of the knife. In order to improve the performance and user experience of the electric sharpener, it is necessary to optimize the design of the sharpening wheel and improve the connection method between the motor 2 and the base to reduce vibration and noise and achieve a more efficient and quiet sharpening process. The double-sided concave grinding wheel 201 is installed to solve the problem. When the equipment is running, the double-sided concave grinding wheel 201 is set in the electric sharpener to effectively improve the working efficiency of the knife sharpening. The design of the concave grinding wheel makes the contact area between the blade and the grinding wheel smaller during the grinding process, and increases the friction coefficient and increases the friction force to improve the sharpening efficiency, simplifying the operation process. At the same time, the vibration of the motor 2 during operation is absorbed by the buffer spring 203 and converted into elastic potential energy. When the buffer spring 203 releases the elastic potential energy, the larger friction between the friction column 206 and the inner friction column 207 prevents the release of the elastic potential energy, and converts the elastic potential energy into internal energy, thereby effectively reducing the noise, achieving the effect of improving work efficiency and reducing noise. A fixing nail 5 is fixed to the side of the pressure plate 202, and a limiting rod 501 is slidably connected to the circumference of the fixing nail 5. The inner wall of the limiting rod 501 is slidably connected to the circumference of the fixing nail 5. The fixing nail 5 is fixed to the bottom fixing plate 208. When the equipment is subjected to a large vibration and exceeds the limit compression length of the buffer spring 203, the buffer spring 203 will be rigidly deformed, resulting in the equipment being unable to be used normally, reducing the service life of the equipment. The problem is solved by installing a limiting rod 501, so that when the impact intensity exceeds the shock-absorbing range, the limiting rod 501 prevents the vibration impact through its own rigid support. The limiting rod 501 is installed on the outside through the fixing nail 5, which is easy to replace, thereby achieving the effect of increasing the service life of the equipment.

[0027] Finger grooves 3 are provided at both ends of the main body 1 of the knife sharpening device, and opposing buttons 301 are provided at both ends of the main body 1 of the knife sharpening device. When the staff operates the electric knife sharpener for knife sharpening, due to the high speed of the grinding wheel, improper operation or insufficient safety measures can easily cause finger injuries. Once the fingers touch the rotating grinding wheel, they will be injured due to the impact force. The vibration and noise generated during the operation of the knife sharpener will also distract the operator's attention and increase the risk of misoperation. The installation of opposing buttons 301 solves this problem, so that when the staff uses it, they must press the button on one side before the grinding wheel on the other side rotates, so that the user's hands are forcibly occupied during operation to prevent the user from misoperating, thereby achieving the effect of improving the safety of the equipment. A bottom square groove 4 is provided at the bottom of the main body 1 of the knife sharpening device, and a rubber platform 401 is fixed on the inner wall of the bottom square groove 4 to improve the shock absorption effect of the equipment. An anti-skid groove 402 is provided at the bottom of the rubber platform 401 to prevent the equipment from slipping and improve the user experience. The rubber platform 401 is set as a quadrangular platform, which increases the contact area between the rubber platform 401 and the desktop without increasing the material, increases the friction, and improves the user experience. The surface of the sharpening device body 1 is detachably connected with a cover module 101, and the surface of the cover module 101 is provided with a sharpening hole 102. The cover module 101 improves the modular design, facilitates subsequent maintenance, and reduces subsequent maintenance costs.

[0028] The working principle of the utility model is as follows: when the equipment is running, by arranging a double-sided concave grinding wheel 201 in the electric knife sharpener, the working efficiency of knife sharpening can be effectively improved. The design of the concave grinding wheel makes the contact area between the blade and the grinding wheel smaller during the grinding process, and increases the friction coefficient and increases the friction force to improve the knife sharpening efficiency, simplifying the operation process. At the same time, the vibration during the operation of the motor 2 is absorbed by the buffer spring 203 and converted into elastic potential energy. When the buffer spring 203 releases the elastic potential energy, the larger friction force between the friction column 206 and the inner friction column 207 prevents the release of the elastic potential energy and converts the elastic potential energy into internal energy. When the staff uses it, they must press the button on one side before the grinding wheel on the other side rotates, so that the user's hands are forcibly occupied during operation to prevent the user from operating incorrectly.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An electric knife sharpener, comprising a knife sharpening device body (1), wherein a knife sharpening hole (102) is provided on the top of the knife sharpening device body (1), and wherein: A motor (2) is fixed to the inner wall of the knife sharpening device body (1); a double-sided concave grinding wheel (201) is fixed to one end of the motor (2); a pressure plate (202) is fixed to the bottom of the motor (2); a limit ring (204) is fixed to the bottom of the pressure plate (202); a buffer spring (203) is fixed to the bottom of the pressure plate (202); a bottom fixing plate (208) is fixed to one end of the buffer spring (203); a limit ring (204) is fixed to the top of the bottom fixing plate (208); a push rod (205) is fixed to the bottom of the pressure plate (202); a friction column (206) is fixed to the bottom of the push rod (205); an inner friction column (207) is slidably connected to the circumference of the friction column (206); and the bottom of the inner friction column (207) is fixed to the top of the bottom fixing plate (208).

2. The electric knife sharpener according to claim 1, characterized in that: Finger grooves (3) are provided at both ends of the knife sharpening device body (1), and opposing buttons (301) are provided at both ends of the knife sharpening device body (1).

3. The electric knife sharpener according to claim 1, characterized in that: A fixing nail (5) is fixed to the side of the pressure plate (202), the circumference of the fixing nail (5) is slidably connected to a limiting rod (501), the inner wall of the limiting rod (501) is slidably connected to the circumference of the fixing nail (5), and the fixing nail (5) is fixed to the bottom fixing plate (208).

4. The electric knife sharpener according to claim 1, characterized in that: A bottom rectangular groove (4) is provided at the bottom of the knife sharpening device body (1), and a rubber platform (401) is fixed to the inner wall of the bottom rectangular groove (4).

5. The electric knife sharpener according to claim 4, characterized in that: The bottom of the rubber platform (401) is provided with an anti-slip groove (402).

6. The electric knife sharpener according to claim 4, characterized in that: The rubber platform (401) is configured as a quadrangular platform.

7. The electric knife sharpener according to claim 1, characterized in that: A covering module (101) is detachably connected to the surface of the knife sharpening device body (1), and a knife sharpening hole (102) is provided on the surface of the covering module (101).

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