A kitchen knife

Abstract

This utility model relates to the field of knives, specifically a kitchen knife, comprising a blade, a cutting edge, a handle, and welded end faces. The blade is welded to the bottom of the blade, and welded end faces are provided at the interface between the blade and the cutting edge. The handle is connected to the side of the blade by screws. Two different materials are joined together by welding; this method saves costs, allowing the upper part to use ordinary materials while the lower part can use high-quality materials, controlling costs and improving product quality without compromising quality. The two materials can be heat-treated separately to ensure optimal performance for both.

Description

Technical Field

[0001] This utility model relates to the field of knives, and in particular to a kitchen knife. Background Technology

[0002] Most mainstream mid-to-high-end kitchen knives currently use a single-piece steel manufacturing process. While this can meet basic performance requirements through standardized heat treatment, it suffers from a core contradiction: a poor balance between material cost and performance. Traditional welded structures and flat blade designs result in excessive knife weight and uneven stress distribution, leading to significant shortcomings in cutting efficiency and handling. Furthermore, the overall heat treatment process struggles to balance blade sharpness and body toughness. Coupled with issues such as easily damaged anti-stick coatings and large manufacturing tolerances, these factors severely restrict the product's overall performance in lightweight, durable, and precision cutting scenarios. Summary of the Invention

[0003] The purpose of this utility model is to provide a kitchen knife in order to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A kitchen knife includes a blade, a blade edge, a handle, and a welding end face. The blade edge is welded to the bottom of the blade, and welding end faces are provided at the interface between the blade and the blade edge. The handle is connected to the side of the blade by screws.

[0006] The blade and the cutting edge are made of different materials, and the blade has a spindle-shaped cross-section while the cutting edge has an inverted triangular cross-section.

[0007] The two wide sides of the blade are called the blade surface, and the two wide sides of the cutting edge are called the cutting edge surface.

[0008] Preferably, the welding toe of the blade and the cutting edge is an acute-angle connection.

[0009] Preferably, the welding toe of the blade and the cutting edge is a rounded corner connection.

[0010] Preferably, the blade has one side of a curved surface and the other side of a straight surface, and the cutting edge has one side of a curved surface and the other side of a straight surface.

[0011] Preferably, one side of the blade is an arc surface and the other side is a straight surface, and both sides of the cutting edge are arc surfaces.

[0012] Preferably, one side of the blade is an arc surface and the other side is a straight surface, and both sides of the cutting edge are straight surfaces.

[0013] Preferably, the welding end face between the blade body and the cutting edge is a straight line weld.

[0014] Preferably, the welding end face between the blade and the cutting edge is an arc weld.

[0015] Compared with existing technologies, the beneficial effects are as follows:

[0016] 1. The blade has a curved surface, resulting in a larger weld joint. While the market standard is 2-25mm, this design has a 5mm weld joint, making the weld more stable. It also reduces the weight of the blade, making it more convenient and comfortable to use. The curved tip of the blade makes it easier to cut thin slices without them sticking to the blade.

[0017] 2. Two different materials are joined together by welding; this saves costs, the upper part can use ordinary materials, and the lower part can use high-quality materials, controlling costs and improving product quality without affecting product quality; the two materials can be heat-treated separately to ensure that the performance of both materials reaches its best. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a kitchen knife according to the present invention;

[0020] Figure 2 This is an exploded structural diagram of a kitchen knife according to the present invention;

[0021] Figure 3 This is a side sectional view of a kitchen knife according to the present invention;

[0022] Figure 4 This is a schematic diagram of the straight-line welding structure between the blade and the cutting edge of a kitchen knife according to the present invention;

[0023] Figure 5 This is a schematic diagram of the arc welding structure between the blade and the cutting edge of a kitchen knife according to the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of a kitchen knife of the present invention, in which the blade and the blade tip are connected at an acute angle.

[0025] Figure 7This is a schematic diagram of the structure of a kitchen knife according to the present invention, wherein the blade and the blade tip are connected by a rounded corner.

[0026] Figure 8 This is a schematic diagram of the single-arc surface of the blade and the single-arc surface of the cutting edge of a kitchen knife according to the present invention;

[0027] Figure 9 This is a schematic diagram of the single-arc surface of the blade and the double-arc surface of the cutting edge of a kitchen knife according to the present invention;

[0028] Figure 10 This is a schematic diagram of the single-arc blade and double-straight blade structure of a kitchen knife according to the present invention.

[0029] The annotations in the attached figures are explained as follows:

[0030] 1. Blade; 2. Blade edge; 3. Handle; 4. Welded end face; 11. Blade body face; 21. Blade edge face. Detailed Implementation

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The present invention will be further described below with reference to the accompanying drawings:

[0033] like Figures 1-3 As shown, a kitchen knife includes a blade 1, a blade 2, a handle 3, and a welding end face 4. The blade 2 is connected to the bottom of the blade 1 by welding. Welding end faces 4 are provided at the interface between the blade 1 and the blade 2. The handle 3 is connected to the side of the blade 1 by screws.

[0034] The blade 1 and the cutting edge 2 are made of different materials, and the cross-section of the blade 1 is spindle-shaped, while the cross-section of the cutting edge 2 is inverted triangular.

[0035] The two wide sides of the blade 1 are blade surface 11, and the two wide sides of the blade 2 are blade surface 21.

[0036] Example 1: As Figure 6 As shown, the welding toe of the blade 1 and the cutting edge 2 is an acute-angle connection.

[0037] In this embodiment, as Figure 5 As shown, the welding end face 4 between the blade 1 and the cutting edge 2 is a straight line weld.

[0038] In this embodiment, as Figure 8 As shown, one side of the blade surface 11 of the blade 1 is curved, and the other side is straight. One side of the blade surface 21 of the blade 2 is curved, and the other side is straight.

[0039] Example 2: As Figure 6 As shown, the welding toe of the blade 1 and the cutting edge 2 is an acute-angle connection.

[0040] In this embodiment, as Figure 5 As shown, the welding end face 4 between the blade 1 and the cutting edge 2 is a straight line weld.

[0041] In this embodiment, as Figure 9 As shown, one side of the blade surface 11 of the blade 1 is curved, and the other side is straight. Both sides of the blade surface 21 of the blade 2 are curved.

[0042] Example 3: As Figure 6 As shown, the welding toe of the blade 1 and the cutting edge 2 is an acute-angle connection.

[0043] In this embodiment, as Figure 5 As shown, the welding end face 4 between the blade 1 and the cutting edge 2 is a straight line weld.

[0044] In this embodiment, as Figure 10 As shown, one side of the blade surface 11 of the blade 1 is an arc surface, and the other side is a straight surface. Both sides of the blade surface 21 of the blade 2 are straight surfaces.

[0045] Example 4: Figure 6 As shown, the welding toe of the blade 1 and the cutting edge 2 is an acute-angle connection.

[0046] In this embodiment, as Figure 4 As shown, the welding end face 4 between the blade 1 and the cutting edge 2 is an arc weld.

[0047] In this embodiment, as Figure 8 As shown, one side of the blade surface 11 of the blade 1 is curved, and the other side is straight. One side of the blade surface 21 of the blade 2 is curved, and the other side is straight.

[0048] Example 5: Figure 6 As shown, the welding toe of the blade 1 and the cutting edge 2 is an acute-angle connection.

[0049] In this embodiment, as Figure 4 As shown, the welding end face 4 between the blade 1 and the cutting edge 2 is an arc weld.

[0050] In this embodiment, as Figure 9As shown, one side of the blade surface 11 of the blade 1 is curved, and the other side is straight. Both sides of the blade surface 21 of the blade 2 are curved.

[0051] Example 6: As Figure 6 As shown, the welding toe of the blade 1 and the cutting edge 2 is an acute-angle connection.

[0052] In this embodiment, as Figure 4 As shown, the welding end face 4 between the blade 1 and the cutting edge 2 is an arc weld.

[0053] In this embodiment, as Figure 10 As shown, one side of the blade surface 11 of the blade 1 is an arc surface, and the other side is a straight surface. Both sides of the blade surface 21 of the blade 2 are straight surfaces.

[0054] Example 7: As Figure 7 As shown, the weld toe of the blade 1 and the blade edge 2 is a rounded corner connection.

[0055] In this embodiment, as Figure 5 As shown, the welding end face 4 between the blade 1 and the cutting edge 2 is a straight line weld.

[0056] In this embodiment, as Figure 8 As shown, one side of the blade surface 11 of the blade 1 is curved, and the other side is straight. One side of the blade surface 21 of the blade 2 is curved, and the other side is straight.

[0057] Example 8: As Figure 7 As shown, the weld toe of the blade 1 and the blade edge 2 is a rounded corner connection.

[0058] In this embodiment, as Figure 5 As shown, the welding end face 4 between the blade 1 and the cutting edge 2 is a straight line weld.

[0059] In this embodiment, as Figure 9 As shown, one side of the blade surface 11 of the blade 1 is curved, and the other side is straight. Both sides of the blade surface 21 of the blade 2 are curved.

[0060] Example 9: As Figure 7 As shown, the weld toe of the blade 1 and the blade edge 2 is a rounded corner connection.

[0061] In this embodiment, as Figure 5 As shown, the welding end face 4 between the blade 1 and the cutting edge 2 is a straight line weld.

[0062] In this embodiment, as Figure 10 As shown, one side of the blade surface 11 of the blade 1 is an arc surface, and the other side is a straight surface. Both sides of the blade surface 21 of the blade 2 are straight surfaces.

[0063] Example 10: As Figure 7 As shown, the weld toe of the blade 1 and the blade edge 2 is a rounded corner connection.

[0064] In this embodiment, as Figure 4 As shown, the welding end face 4 between the blade 1 and the cutting edge 2 is an arc weld.

[0065] In this embodiment, as Figure 8 As shown, one side of the blade surface 11 of the blade 1 is curved, and the other side is straight. One side of the blade surface 21 of the blade 2 is curved, and the other side is straight.

[0066] Example 11: As Figure 7 As shown, the weld toe of the blade 1 and the cutting edge 2 is a rounded corner connection. (The rounded corner is not shown in the image.)

[0067] In this embodiment, as Figure 4 As shown, the welding end face 4 between the blade 1 and the cutting edge 2 is an arc weld.

[0068] In this embodiment, as Figure 9 As shown, one side of the blade surface 11 of the blade 1 is curved, and the other side is straight. Both sides of the blade surface 21 of the blade 2 are curved.

[0069] Example 12: As Figure 7 As shown, the weld toe of the blade 1 and the blade edge 2 is a rounded corner connection.

[0070] In this embodiment, as Figure 4 As shown, the welding end face 4 between the blade 1 and the cutting edge 2 is an arc weld.

[0071] In this embodiment, as Figure 10 As shown, one side of the blade surface 11 of the blade 1 is an arc surface, and the other side is a straight surface. Both sides of the blade surface 21 of the blade 2 are straight surfaces.

[0072] Working principle: In the initial stage of production, different materials are selected to process the blade 1 and the blade 2. Common materials on the market are used to produce the blade 1; high-quality, high-hardness, and expensive high-end materials are used to produce the blade 2, thereby saving materials, reducing costs and improving product quality; the arc design on both sides of the blade allows the welding joint 4 to have a larger contact surface, making the welding effect more stable, while also reducing the weight of the knife, making it lighter and more comfortable to use.

[0073] After processing the blade 1 and the cutting edge 2 separately, the welding end face 4 on the blade 1 and the cutting edge 2 is ground and dimensionally matched to ensure consistency and stability during welding. Then, the blade 1 and the cutting edge 2 are welded together using welding methods such as laser welding and argon arc welding. After welding, the blade 1 and the cutting edge 2 can be made of different materials to ensure their economy and strength.

[0074] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A kitchen knife, characterized in that: It includes a blade (1), a blade (2), a handle (3), and a welding end face (4). The blade (1) is connected to the blade (2) by welding at the bottom. The blade (1) and the blade (2) are both provided with welding end faces (4). The handle (3) is connected to the side of the blade (1) by screws. The blade (1) and the blade (2) are made of different materials, and the blade (1) has a spindle-shaped cross section while the blade (2) has an inverted triangular cross section. The two wide sides of the blade (1) are the blade surface (11), and the two wide sides of the blade (2) are the blade surface (21).

2. A kitchen knife according to claim 1, characterized in that: The welding toe positions of the blade (1) and the cutting edge (2) are connected at an acute angle.

3. A kitchen knife according to claim 1, characterized in that: The welding toe positions of the blade (1) and the cutting edge (2) are rounded.

4. A kitchen knife according to claim 1, characterized in that: The blade (1) has a curved surface on one side of the blade surface (11) and a straight surface on the other side. The blade (2) has a curved surface on one side of the blade surface (21) and a straight surface on the other side.

5. A kitchen knife according to claim 1, characterized in that: The blade (1) has one side of the blade surface (11) that is curved and the other side that is straight. The blade (2) has two sides of the blade surface (21) that are both curved.

6. A kitchen knife according to claim 1, characterized in that: The blade (1) has a curved surface on one side of the blade surface (11) and a straight surface on the other side. The blade (2) has straight surfaces on both sides of the blade surface (21).

7. A kitchen knife according to claim 1, characterized in that: The welding end face (4) between the blade (1) and the blade (2) is a straight weld.

8. A kitchen knife according to claim 1, characterized in that: The welding end face (4) between the blade (1) and the blade (2) is an arc weld.

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