Electric cutter for kitchen
By using beveled connecting rivets and a wear-resistant coating in electric knives, the problem of metal particles generated by blade friction has been solved, resulting in safer and more durable kitchen utensils.
Patent Information
- Application Number
- CN202520026189.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-01-06
AI Technical Summary
Existing electric cutting tools' blades and fixed structures are prone to friction, generating metal particles that can affect food safety.
The connecting rivets feature an angled design to reduce the contact area between the blade and the rivet, and the blade is coated with a wear-resistant coating to reduce friction and wear.
It effectively reduces the generation of metal particles, improves food safety, and ensures the stability and durability of the cutting tools.
Smart Images

Figure CN223617775U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of kitchenware technology, and more particularly to an electric kitchen knife. Background Technology
[0002] Electric knives are commonly used kitchen appliances. In most electric knife blade designs on the market, the rivets used to secure the blade are flat (e.g., ...). Figure 3 As shown in the figure, its contact surface is relatively large, making it prone to friction with the blade and generating metal particles. Therefore, this utility model proposes an electric kitchen knife. Utility Model Content
[0003] This application provides an electric kitchen knife that effectively avoids the generation of metal particles from friction, making food safer.
[0004] In view of this, this application provides an electric kitchen knife, including: an electric knife main unit and a blade;
[0005] The blade is fixed to the electrosurgical unit by connecting rivets;
[0006] The connecting rivet includes a head, a blade connecting part, and a rod part;
[0007] The outer surface of the blade connector is provided with a bevel;
[0008] One end of the blade connector is connected to the head, and the other end is connected to the rod.
[0009] Optionally, the tilt angle of the oblique angle is 30° to 60°.
[0010] Optionally, the tilt angle of the oblique angle is 45°.
[0011] Optionally, the blade connection portion has a frustum-shaped structure.
[0012] Optionally, the blade is coated with a wear-resistant coating.
[0013] Optionally, the wear-resistant coating is a ceramic coating.
[0014] Optionally, both the blade and the connecting rivet are made of wear-resistant materials.
[0015] Optionally, the blade is made of martensitic stainless steel;
[0016] The connecting rivets are made of 304 stainless steel.
[0017] As can be seen from the above technical solutions, the embodiments of this application have the following advantages: This electric kitchen knife includes an electric knife main unit and a blade. The blade is fixed to the electric knife main unit by a connecting rivet. The connecting rivet includes a head, a blade connecting part, and a shank. The outer surface of the blade connecting part is provided with a chamfer. One end of the blade connecting part is connected to the head, and the other end is connected to the shank. By adding a chamfer to the connecting rivet, the friction surface between it and the blade is reduced, thereby greatly reducing the probability of generating metal particles and making food safer. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of the electric kitchen knife in the embodiments of this application;
[0019] Figure 2 This is a schematic diagram of the connecting rivet structure in an embodiment of this application;
[0020] Figure 3 This is a schematic diagram of the structure of a rivet in the prior art;
[0021] The attached figures are labeled as follows:
[0022] 1-Electrosurgical unit, 2-Blade, 3-Connecting rivet, 31-Head, 32-Blade connecting part, 33-Bar part. Detailed Implementation
[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.
[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0026] This application provides an embodiment of an electric kitchen knife. Please refer to [link / reference needed]. Figure 1 and Figure 2 .
[0027] The electric kitchen knife in this embodiment includes an electric knife host 1 and a blade 2. The blade 2 is fixed to the electric knife host 1 by a connecting rivet 3. The connecting rivet 3 includes a head 31, a blade connecting part 32 and a rod part 33. The outer surface of the blade connecting part 32 is provided with an angle. One end of the blade connecting part 32 is connected to the head 31 and the other end is connected to the rod part 33.
[0028] It should be noted that this kitchen electric knife reduces the friction surface between the connecting rivet 3 and the blade 2 by adding an angle, thereby greatly reducing the chance of generating metal particles and making food safer.
[0029] The above is Embodiment 1 of an electric kitchen knife provided in this application. The following is Embodiment 2 of an electric kitchen knife provided in this application. Please refer to the following for details. Figure 1 and Figure 2 .
[0030] The electric kitchen knife in this embodiment includes an electric knife host 1 and a blade 2. The blade 2 is fixed to the electric knife host 1 by a connecting rivet 3. The connecting rivet 3 includes a head 31, a blade connecting part 32 and a rod part 33. The outer surface of the blade connecting part 32 is provided with an angle. One end of the blade connecting part 32 is connected to the head 31 and the other end is connected to the rod part 33.
[0031] It should be noted that, compared with traditional straight cylindrical rivets, the beveled connecting rivet 3 used in this application changes the contact method with the blade 2. Traditional rivets have an approximately planar contact with the blade 2, with the entire side of the shank 33 tightly fitted to the blade 2; however, due to the presence of the bevel, the contact method of the improved connecting rivet 3 becomes point contact or line contact (depending on the size of the bevel and the actual contact situation), greatly reducing the contact area.
[0032] The tilt angle of the bevel can be 30° to 60°, and preferably, the tilt angle of the bevel is 45°.
[0033] Understandably, the bevel can be a planar bevel, meaning one side of the connecting rivet 3 is cut into a plane, and this plane forms an angle with the central axis of the connecting rivet 3. The bevel can also be a curved bevel, where the surface is a smooth curve. The curved surface design can further optimize the contact between the connecting rivet 3 and the blade 2, reducing stress concentration. When the bevel is a curved bevel, the blade connection part 32 has a frustum-shaped structure.
[0034] The blade 2 is coated with a wear-resistant coating. Preferably, the wear-resistant coating can be a ceramic coating such as titanium nitride (TiN) or tungsten carbide (WC). These coatings have the characteristics of high hardness and low coefficient of friction. When the blade 2 comes into contact with food or other parts, the coating can withstand most of the friction and wear, reducing the wear of the metal blade 2 itself, thereby reducing the probability of metal powder generation. For example, the hardness of the titanium nitride coating can reach 2000-2400 HV, which is far higher than the hardness of ordinary stainless steel blades 2, and can effectively prevent the shedding of metal atoms from the surface of the blade 2.
[0035] Both the blade 2 and the connecting rivet 3 can be made of wear-resistant materials. Preferably, the blade 2 is made of martensitic stainless steel, and the connecting rivet 3 is made of 304 stainless steel.
[0036] Understandably, when the blade 2 is made of 440C martensitic stainless steel (hardness can reach 58~60HRC), the connecting rivet 3 can be made of 304 stainless steel (hardness about 187~200HB) with slightly lower hardness but better toughness. This combination of hardness can make the blade 2 and the connecting rivet 3 wear relatively evenly during operation, thereby further reducing the generation of metal powder.
[0037] This electric kitchen knife is simple to operate, safe, and has a stable structure. When you need to cut food, simply remove the packaged blade 2, insert the blade 2 into the electric knife main unit 1, and then start the appliance to cut the food.
[0038] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. An electric kitchen knife, characterized in that, include: Electrosurgical unit and blade; The blade is fixed to the electrosurgical unit by connecting rivets; The connecting rivet includes a head, a blade connecting part, and a rod part; The outer surface of the blade connector is provided with a bevel; One end of the blade connector is connected to the head, and the other end is connected to the rod.
2. The electric kitchen knife according to claim 1, characterized in that, The tilt angle of the oblique angle is 30°~60°.
3. The electric kitchen knife according to claim 2, characterized in that, The tilt angle of the oblique angle is 45°.
4. The electric kitchen knife according to claim 1, characterized in that, The blade connection part has a frustum-shaped structure.
5. The electric kitchen knife according to claim 1, characterized in that, The blade is coated with a wear-resistant coating.
6. The electric kitchen knife according to claim 5, characterized in that, The wear-resistant coating is a ceramic coating.
7. The electric kitchen knife according to claim 1, characterized in that, Both the blade and the connecting rivet are made of wear-resistant materials.
8. The electric kitchen knife according to claim 7, characterized in that, The blade is made of martensitic stainless steel. The connecting rivets are made of 304 stainless steel.