Glass knife

Abstract

The invention discloses a glass knife, which comprises a knife head (14), a knife rod (15), a backup plate, a ruler (12) and a sliding device, wherein the knife head (14) is arranged at one end of the knife rod (15); one end of the ruler (12) is fixedly connected onto the backup plate in the vertical direction; the sliding device is glidingly connected with the ruler (12); and the knife rod (15) is connected with the sliding device and perpendicular to the plane, close to the glass surface, of the ruler (12). After the structure is adopted, the ruler is combined with the knife head and the knife rod, namely the knife head can be driven by the knife rod to be in sliding fit along the ruler, so that a user only needs to carry one glass knife for performing the function of scribing lines on glass; and meanwhile, arbitrary parallel lines can be scribed by enabling a vertical drawing board of the backup plate to be propped against the edge of the glass, the operation is very convenient, and the depth of parallelism is also more accurate.

Description

technical field [0001] The invention relates to the technical field of cutting tools, in particular to a glass knife. Background technique [0002] A glass knife refers to a knife used to cut glass. Usually, the part of the glass knife used for cutting is made of diamond or alloy material that is stronger than glass. The glass cutter in the prior art includes a cutter head and a cutter rod, and the cutter head is fixed on the end of the cutter rod. During operation, the user holds the cutter rod with his hand and scratches the cutter head on the glass. But there is following shortcoming in the glass knife of this structure: [0003] 1) When the glass is cut, the marking line must be smooth and continuous, so that the cut glass section will be smooth and regular. Therefore, the glass knife needs to be equipped with a ruler or other rulers to mark the line when marking. In this way, The user must carry the required ruler or other rulers during operation, and the work cannot ...

AI Technical Summary

Problems solved by technology

[0003] 1) When the glass is cut, the marking line must be smooth and continuous, so that the cut glass section will be smooth and regular. Therefore, the glass knife needs to be equipped with a ruler or other rulers to mark the line when marking. In this way, The user must carry the required ruler or other rulers during operation, and the work cannot be carried out without these rulers;

[0004] 2) When drawing parallel lines or vertical lines on the glass surface, it is like drawing on paper. Figure 1 In the same way, several rulers need to be operated at the same time. For example, when drawing a parallel line, two rulers are needed. The first one is used as a ruler, and the second one is placed vertically on the first ruler. Move the first ruler down or up, and draw the second line after confirming the position. Therefore, this operation has two disadvantages: one is that the operation is more troublesome, and the other is that there are many parallel lines drawn due to human factors. The position of the line will deviate

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