CN-224202366-U - Combined vernier angle measuring structure

Abstract

The utility model discloses a combined vernier angle measuring structure which comprises a first structure body and a second structure body, wherein the first structure body comprises at least three edges which are connected end to end, the second structure body comprises at least two edges which are connected end to end, the first structure body is provided with a first arc edge, the second structure body is provided with a second arc edge, the radians of the first arc edge and the second arc edge are the same, one of the first arc edge and the second arc edge is a convex arc, the other one of the first arc edge and the second arc edge is a concave arc, the first structure body is at least provided with a concave angle formed by the first arc edge and an adjacent edge thereof, the surface of the first arc edge is provided with an angle scale mark or an angle vernier scale mark, and the surface of the second arc edge is provided with an angle vernier scale mark or an angle scale mark which is matched with the first arc edge.

Inventors

• ZHANG YUNHAO

Assignees

• 内蒙古随笔文具有限责任公司

Dates

Publication Date

20260505

Application Date

20250620

Claims (7)

1. 1. A combined vernier angle measuring structure is characterized by comprising a platy first structural body and platy second structural body, wherein the platy first structural body and the platy second structural body are in edge joint, the platy first structural body comprises at least three edges which are connected end to end, the second structural body comprises at least two edges which are connected end to end, the first structural body is provided with a first arc edge, the second structural body is provided with a second arc edge, at least one edge in the first structural body or the second structural body is in a straight line shape, the radian of the first arc edge is identical with that of the second arc edge, one of the first arc edge and the second arc edge is a convex arc, the first structural body is at least provided with a concave angle formed by the first arc edge and an adjacent edge thereof, the surface of the first arc edge is provided with angle scale marks or angle vernier scale marks, the surface of the second arc edge is provided with angle scale marks or angle scale marks matched with the first arc edge, the angle scale marks are uniformly distributed by a plurality of angle scale marks, and the second vernier scale marks and the second arc marks and the first arc edge and the second vernier scale marks are uniformly distributed, and the first arc marks and the second vernier structures are mutually matched.
2. 2. The combined vernier angle measuring structure of claim 1, wherein the first structure body comprises three edges which are connected end to end, the three edges of the first structure body are arc-shaped, a concave angle is formed between the first arc edge of the first structure body and the adjacent arc-shaped edges, the first arc edge is a concave arc, angle vernier scale marks are arranged on the surface of the first arc edge, the second structure body comprises two edges which are connected end to end, the second arc edge of the second structure body is a convex arc, the other edge of the second structure body is straight, and angle scale marks are arranged on the surface of the second arc edge.
3. 3. The combined vernier angle measuring structure of claim 1, wherein the first structure body comprises three edges which are connected end to end, two edges of the first structure body are arc-shaped, a third edge of the first structure body is linear, a concave angle is formed between the first arc edge and the third edge of the first structure body, the first arc edge is a concave arc, angle scale marks are arranged on the surface of the first arc edge, the second structure body comprises two edges which are connected end to end, the second arc edge of the second structure body is a convex arc, the other edge of the second structure body is linear, and angle vernier scale marks are arranged on the surface of the second arc edge.
4. 4. The combined vernier angle measuring structure of claim 1, wherein the first structure body comprises three edges which are connected end to end, two edges of the first structure body are arc-shaped, a third edge of the first structure body is linear, a concave angle is formed between the first arc edge and the third edge of the first structure body, the first arc edge is a concave arc, angle vernier scale marks are arranged on the surface of the first arc edge, the other edge adjacent to the third edge is a convex arc, angle scale marks are arranged on the surface of the other edge adjacent to the third edge, and the second structure body is identical to the first structure body.
5. 5. The combined vernier angle measuring structure of claim 1, wherein the first structure body comprises four edges and is connected end to end, only one edge of the first structure body is in a straight line shape, the other edges are arc-shaped, a concave angle is formed between the first arc edge of the first structure body and the adjacent straight line-shaped edge of the first structure body, angle scale marks are arranged on the surface of the first arc edge which is a convex arc, the second structure body comprises four edges and is connected end to end, only one edge of the second structure body is in a straight line shape, the other edges of the arc-shaped edges of the second structure body are concave arcs, and angle vernier scale marks are arranged on the surface of the second arc edge.
6. 6. The combined vernier angle measuring structure of claim 1, wherein the first structure body comprises five edges which are connected end to end, two adjacent edges of the first structure body are arc-shaped, the rest edges are linear, a concave angle is formed between a first arc edge of the first structure body and the adjacent linear edges, the first arc edge is a concave arc, angle scale marks are arranged on the surface of the first arc edge, angle vernier scale marks are arranged on the surface of the other arc edge, and the second structure body is identical to the first structure body.
7. 7. The combined vernier angle measuring structure of claim 6, wherein the longest straight edge of the second structure body is equal to the radius of the first arc edge, the two straight edges of the second structure body far from the first arc edge are perpendicular to each other, and the common end point of the two straight edges can be used as the center point of an angle scale mark of the first structure body, and the measuring angle of the angle scale mark is 0-55 degrees.

Description

Combined vernier angle measuring structure Technical field: the utility model relates to the technical field of measuring tools, in particular to a combined vernier angle measuring structure. The background technology is as follows: The drawing angle is often used in drawing engineering drawings, the current drawing mode is to draw points through a protractor, the radius of the conventional protractor is about 8 cm and cannot be placed into a writing case, the precision can only be controlled at 1 degree, the defect of low measurement precision exists, if the drawing precision is improved, the angle can only be indirectly obtained through Pythagorean theorem calculation, or a larger protractor is adopted, and the mode obviously has no practicability. If the constant protractor is to be scaled down until being put into a writing case, the precision of the angle measuring ruler can not reach 1 degree in some cases. Therefore, the contradiction between the aspect ratio and the precision of the ruler is the biggest problem of the traditional protractor. The utility model comprises the following steps: the present utility model is directed to a combined vernier angle measuring structure, which solves the above-mentioned problems in the prior art. The utility model is implemented by the following technical scheme: A combined vernier angle measuring structure comprises a platy first structural body and platy second structural body, wherein the platy first structural body and the platy second structural body are attached to each other through edges, the first structural body comprises at least three edges which are connected end to end, the second structural body comprises at least two edges which are connected end to end, the first structural body is provided with a first arc edge, the second structural body is provided with a second arc edge, at least one edge of the first structural body or the second structural body is in a straight line shape, radian of the first arc edge is identical with that of the second arc edge, one of the first arc edge and the second arc edge is a convex arc, at least one concave angle formed by the first arc edge and an adjacent edge of the first arc edge is arranged on the surface of the first structural body, angle scale marks or angle vernier scale marks matched with the first arc edge are arranged on the surface of the first arc edge, the angle scale marks are formed by a plurality of uniformly distributed angle scale marks, the first arc edge and the second arc edge are mutually matched with each other, and the first arc edge and the second arc edge are mutually matched with each other. Preferably, the first structure body comprises three edges which are connected end to end, the three edges of the first structure body are arc-shaped, a concave angle is formed between the first arc edge of the first structure body and the adjacent arc-shaped edges of the first structure body, the first arc edge is a concave arc, an angle vernier scale mark is arranged on the surface of the first arc edge, the second structure body comprises two edges which are connected end to end, the second arc edge of the second structure body is a convex arc, the other edge of the second structure body is straight, and an angle scale mark is arranged on the surface of the second arc edge. Preferably, the first structure body comprises three edges which are connected end to end, the two edges of the first structure body are arc-shaped, the third edge of the first structure body is linear, a concave angle is formed between the first arc edge and the third edge of the first structure body, the first arc edge is a concave arc, angle scale marks are arranged on the surface of the first arc edge, the second structure body comprises two edges which are connected end to end, the second arc edge of the second structure body is a convex arc, the other edge of the second structure body is linear, and angle vernier scale marks are arranged on the surface of the second arc edge. Preferably, the first structure body comprises three edges which are connected end to end, two edges of the first structure body are arc-shaped, a third edge of the first structure body is linear, a concave angle is formed between the first arc edge and the third edge of the first structure body, the first arc edge is a concave arc, an angle vernier scale mark is arranged on the surface of the first arc edge, the other edge adjacent to the third edge is a convex arc, an angle scale mark is arranged on the surface of the other edge adjacent to the third edge, and the second structure body is identical to the first structure body. Preferably, the first structure body comprises four edges which are connected end to end, only one edge of the first structure body is in a straight line shape, the other edges of the first structure body are arc-shaped, a concave angle is formed between the first arc edge of the first structure body and the adjacent strai