A utility knife blade

Abstract

The utility model belongs to the technical field of blades, and in particular to a utility knife blade. A utility knife blade comprises a blade body, a blade edge arranged at the lower part of the blade body along the length direction thereof, and a bending structure is arranged at the upper part of the blade body opposite to the blade edge, and the bending structure is formed by bending the upper part of the blade body toward the side thereof. The utility model enhances the structural strength of the blade and improves the cutting accuracy by arranging the bending structure on the blade body.

Description

Technical Field

[0001] The utility model belongs to the technical field of blades, and in particular relates to a blade for a utility knife. Background Art

[0002] Existing utility knife blades include the Chinese invention patent application with application number 201310186781.3 and patent name "A Utility Knife Blade", and the Chinese utility model patent with application number 202120902222.8 and patent name "A Utility Knife Blade". The two respectively disclose different types of utility knife blades, which are all strip-shaped flat-plate structures as a whole. This structure has the following technical problems: when this type of blade is installed on the utility knife, when the blade is pushed out of the utility knife for a long distance, due to the thinness and greater toughness of the utility knife blade, when it is used to cut harder objects or cut deeper, the blade will swing left and right, resulting in lower cutting accuracy. In addition, it is easy to cause the blade to get stuck or even break. Utility Model Content

[0003] In order to solve the technical problems existing in the prior art, the present application provides a utility knife blade that enhances the structural strength of the blade and improves cutting accuracy by providing a bending structure on the blade body.

[0004] A utility knife blade comprises a blade body and a cutting edge arranged at the lower part of the blade body along the length direction thereof.

[0005] A bending structure is provided on the upper portion of the blade body opposite to the blade edge, and the bending structure is formed by bending the upper portion of the blade body toward the side thereof.

[0006] Preferably, the bending structure is formed by bending the upper portion of the blade body toward one side thereof.

[0007] Preferably, the bending structure is formed by connecting a plurality of bending parts in sequence. (The directions of two adjacent bending parts may be the same or different)

[0008] Preferably, the bending structure is formed by connecting a plurality of bending portions in sequence, and the bending directions of two adjacent bending portions are opposite.

[0009] Preferably, the bending structure includes a first bending portion and a second bending portion connected to the first bending portion, and the bending directions of the first bending portion and the second bending portion are opposite.

[0010] Preferably, notches are arranged at equal intervals on the blade body.

[0011] Preferably, a blade through hole for fixing the blade body is provided at one end of the blade body.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model provides a bending structure on the upper part of the blade body that bends laterally toward the blade body, thereby enhancing the structural strength of the utility knife blade. Due to the existence of the bending structure, the blade is not likely to shake toward both sides when cutting harder objects or cutting at a deeper depth. While improving the structural strength of the blade, the cutting accuracy is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the first perspective structure of Example 1 of the utility model.

[0015] Figure 2 This is a schematic diagram of the second viewing angle structure of Example 1 of the utility model.

[0016] Figure 3 This is a schematic diagram of the first perspective structure of Example 3 of the present utility model.

[0017] Figure 4 This is a schematic diagram of the second perspective structure of Example 3 of the present utility model.

[0018] Figure 5 This is a schematic diagram of the first perspective structure of Example 4 of the present utility model.

[0019] Figure 6 This is a schematic diagram of the second viewing angle structure of Example 4 of the utility model.

[0020] In the figure: 1. Blade body, 11. Blade edge, 12. Notch, 13. Blade through hole, 2. Bending structure, 21. First bending portion, 22. Second bending portion, 23. Straight surface portion. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. Example 1

[0023] See also Figure 1 、 2 As shown, a utility knife blade includes a blade body 1 and a cutting edge 11 disposed along the length of the lower portion of the blade body 1. To facilitate breaking the blade body 1 for use with a new blade, notches 12 are provided at equal intervals on the blade body 1. To facilitate secure installation of the blade body 1 on the blade core of the utility knife, a blade through-hole 13 for securing the blade body 1 is provided at the end of the blade body 1 away from the blade tip.

[0024] A bending structure 2 is provided on the upper portion of the blade body 1 opposite to the blade edge 11. The bending structure 2 is formed by bending the upper portion of the blade body 1 toward the side thereof. Figure 1 As shown, the bending structure 2 is formed by bending the upper part of the blade body 1 toward one side (right side) of the blade body 1, that is, the upper part of the blade body 1 is bent toward one side (right side) in its width direction, and the bending part is an arc transition connection. Example 2

[0025] The difference between this embodiment and embodiment 1 is that, in this embodiment, the bending structure 2 is formed by bending the upper part of the blade body 1 toward one side (left side) of the blade body 1, that is, the upper part of the blade body 1 is bent toward one side (left side) in its width direction, and the bending part is a circular arc transition connection. Example 3

[0026] A utility knife blade includes a blade body 1 and a cutting edge 11 disposed along the length of the lower portion of the blade body 1. To facilitate breaking the blade body 1 for use with a new blade, notches 12 are provided at equal intervals on the blade body 1. To facilitate secure installation of the blade body 1 on the blade blade of a utility knife, a blade through-hole 13 for securing the blade body 1 is provided at the end of the blade body 1 away from the blade tip.

[0027] A bending structure 2 is provided on the upper portion of the blade body 1 opposite to the blade edge 11. The bending structure 2 is formed by bending the upper portion of the blade body 1 toward the side thereof. Specifically, the bending structure is formed by connecting a plurality of bending portions in sequence, and the bending portions of adjacent bending portions are connected in a circular arc transition.

[0028] In other embodiments, the bending structure 2 may include two bending portions connected to each other, and the second bending portion has the same bending direction as the first bending portion, that is, the first bending portion bends toward the right side of the blade body 1, and the second bending portion bends toward the right side of the first bending portion.

[0029] In other embodiments, the bending structure 2 may include three or more bending portions connected in sequence, and the bending directions of adjacent bending portions are opposite, that is, the bending structure 2 is a wavy structure.

[0030] See also Figure 3 、 4 As shown, in order to make the structure of the blade body 1 simple and easy to process, in this embodiment, the bending structure 2 includes a first bending portion 21 and a second bending portion 22 connected to the first bending portion 21 in a circular arc transition, and the bending points of the first bending portion 21 and the second bending portion 22 are arc transition connections, and the bending directions of the first bending portion 22 and the second bending portion 23 are opposite. In this embodiment, the first bending portion 21 bends toward the left side of the blade body 1, and the second bending portion 22 bends toward the right side of the first bending portion 21. Example 4

[0031] See also Figure 5 、 6 As shown, this embodiment is further optimized on the basis of embodiment 3. In order to facilitate the installation of the utility knife blade into the utility knife housing and facilitate the reciprocating sliding of the utility knife blade in the utility knife housing, in this embodiment, the bending structure 2 includes a first bending portion 21, a second bending portion 22 connected to the first bending portion 21 in a circular arc transition, and a straight surface portion 23 connected to the second bending portion 22 in a circular arc transition. The bending point of the first bending portion 21 and the second bending portion 22 is an arc transition connection, and the bending directions of the first bending portion 22 and the second bending portion 23 are opposite. In this embodiment, the first bending portion 21 bends toward the left side of the blade body 1, and the second bending portion 22 bends toward the right side of the first bending portion 21. The straight surface portion 23 is a planar structure and the two side surfaces of the straight surface portion 23 are respectively flush with the two side surfaces of the blade body 1 below the bending structure 2.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A utility knife blade, comprising a blade body, and a blade edge arranged at the lower part of the blade body along the length direction thereof, characterized in that: A bending structure is arranged on the upper part of the blade body opposite to the blade edge, and the bending structure is formed by bending the upper part of the blade body toward the side thereof.

2. A utility knife blade according to claim 1, characterized in that: The bending structure is formed by bending the upper portion of the blade body toward one side thereof.

3. The utility knife blade according to claim 1, characterized in that: The bending structure comprises a plurality of bending parts connected in sequence.

4. A utility knife blade according to claim 3, characterized in that: The bending structure is formed by connecting a plurality of bending parts in sequence, and the bending directions of two adjacent bending parts are opposite.

5. A utility knife blade according to claim 4, characterized in that: The bending structure includes a first bending portion and a second bending portion connected to the first bending portion, and the first bending portion and the second bending portion have opposite bending directions.

6. The utility knife blade according to claim 1, characterized in that: Notches are arranged at equal intervals on the blade body.

7. The utility knife blade according to claim 1, characterized in that: A blade through hole for fixing the blade body is provided at one end of the blade body.

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