CN111765827B

CN111765827B - Angle measuring scale and measuring method

Info

Publication number: CN111765827B
Application number: CN202010500182.4A
Authority: CN
Inventors: 李井建; 易映强
Original assignee: Hangzhou Great Star Industrial Co Ltd
Current assignee: Hangzhou Great Star Industrial Co Ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2022-04-19
Anticipated expiration: 2040-06-04
Also published as: CN111765827A

Abstract

The invention discloses an angle measuring ruler and a measuring method, belongs to the technical field of measuring tools, and aims to overcome the defect that the conventional length measuring ruler such as a tape does not have an angle measuring function. The measuring scale is provided with a first mark, a second mark and an angle mark, the first mark and the second mark are positioned on the same straight line, the angle mark is positioned on the same straight line with the first mark and/or the second mark, and the tangent value of the angle marked by the angle mark is the ratio of the distance from the angle mark to the first mark to the distance from the second mark to the first mark. The angle measuring scale and the measuring method provided by the invention have the advantages that the structures of the scales for measuring the length, such as the tape measure, the ruler and the like, can be suitable for measuring the angle, the length measuring scale can have the angle measuring function by combining the angle measuring scale and the ruler with the length measuring scale, and the application range of the measuring scale is widened.

Description

Angle measuring scale and measuring method

Technical Field

The invention belongs to the technical field of measuring tools, and relates to an angle measuring scale and a measuring method.

Background

The existing angle measuring device is generally provided with a protractor, and can be used for measuring length but cannot be used for measuring angle aiming at common length measuring tools such as a tape measure, a straight ruler, a T-shaped ruler, an L-shaped ruler and the like. In the working process, operators often need different tools to meet different working requirements, so that the operators with experience can roughly estimate the tools if carrying various tools, and only stop corresponding working if not carrying corresponding tools. For example, in the working process of a carpenter, a length measuring tool is one of frequently used tools, but an angle is often required to be measured, the existing length measuring tool has no angle measuring function and needs to carry the angle measuring tool, so that the tool is inconvenient to carry, and a carpenter can only estimate or stop working, thereby influencing the working progress.

Disclosure of Invention

The invention provides an angle measuring ruler and a measuring method aiming at the problems in the prior art and aims to overcome the defect that the existing length measuring ruler such as a measuring tape does not have the angle measuring function.

The invention is realized by the following steps:

the utility model provides an angular surveying chi, its characterized in that, first sign, second sign and angle sign have on the dipperstick, first sign with the second sign is located same straight line, the angle sign with first sign and/or the second sign is located same straight line, the tangent value of the angle that the angle sign was identified is the angle sign arrives the distance of first sign with the second sign arrives the ratio of the distance of first sign.

Preferably, the measuring ruler is a measuring tape or a ruler, and the first mark, the second mark and the angle mark are located on the same straight line.

Preferably, the measuring scale comprises a length measuring mark, and a zero point of the length measuring mark coincides with the first mark.

Preferably, the length measuring mark and the angle mark are positioned on the same surface or different surfaces of the measuring scale.

Preferably, the angle indicator includes a plurality of angle indicators.

Preferably, the angle indication comprises 5 °, 10 °, 15 °, 20 °, 22.5 °, 30 °, 40 °, 45 °, 50 ° and/or 60 °.

Preferably, the angle mark comprises an angle scale mark, and the angle scale mark is obliquely arranged.

Preferably, the angle scale line has an inclination angle gradually increasing as the angle increases.

Preferably, the measuring scale comprises a first scale body and a second scale body which are perpendicular to each other, the first mark is located at the joint of the first scale body and the second scale body, the second mark is located on the first scale body, and the angle mark is located on the second scale body.

An angle measuring method based on the measuring scale is characterized by comprising the following steps:

determining a base line, and determining a base point and a central point on the base line according to a first identifier and a second identifier of the measuring scale;

determining a reference line perpendicular to the base line through a measuring scale, and determining an angle point corresponding to an angle identifier on the reference line, wherein the reference line and the base line are compared with the central point;

the angle to be measured is an included angle between an angle axis and a base line, the angle axis intersects with the base point, and the angle of the included angle or the angle of the estimated included angle is determined according to the intersection point of the angle axis and the reference line.

The angle measuring scale and the measuring method provided by the invention have the advantages that the structures of the scales for measuring the length, such as the tape measure, the ruler and the like, can be suitable for measuring the angle, the length measuring scale can have the angle measuring function by combining the angle measuring scale and the ruler with the length measuring scale, and the application range of the measuring scale is widened.

Drawings

FIG. 1 is a schematic view of the measuring tape when the measuring tape is a tape measure;

FIG. 2 is a first structural view of the tape measure;

FIG. 3 is a second construction of the tape measure blade;

FIG. 4 is a schematic view of a method of measuring an angle of a tape;

FIG. 5 is a schematic view of the structure of the ruler when the measuring ruler is used as a ruler;

FIG. 6 is a schematic structural view of the L-shaped measuring scale;

FIG. 7 is a schematic view of the measuring ruler in tape measure configuration;

FIG. 8 is a schematic view of the tape construction of the tape measure;

fig. 9 is a schematic structural diagram of the measuring ruler being an angle ruler.

Reference is made to the accompanying drawings in which: 100. a tape measure; 110. a tape; 120. a first identifier; 130. a second identifier; 140. identifying an angle; 150. length measurement identification; 210. a baseline; 220. a base point; 230. a center point; 240. a reference line; 241. marking at 5 degrees; 242. marking at 10 degrees; 243. marking at 15 degrees; 244. marking at 30 degrees; 245. marking at 45 degrees; 250. an angular axis; 300. a straightedge; 400. measuring tape; 500. an angle square; 610. a first ruler body; 620. a second ruler body.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in connection with the accompanying drawings for the purpose of facilitating understanding and understanding of the technical solutions of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The present embodiment provides an angle measuring ruler, as shown in fig. 1 to 9, the measuring ruler is provided with a first identifier 120, a second identifier 130 and an angle identifier 140, the first identifier 120 and the second identifier 130 are located on the same straight line, the angle identifier 140 is located on the same straight line as the first identifier 120 and/or the second identifier 130, and a tangent value of an angle identified by the angle identifier 140 is a ratio of a distance from the angle identifier 140 to the first identifier 120 to a distance from the second identifier 130 to the first identifier 120.

The angle measuring method based on the measuring ruler comprises the following steps:

determining a base line 210, and determining a base point 220 and a center point 230 on the base line 210 according to the first identifier 120 and the second identifier 130 of the measuring ruler;

determining a reference line 240 perpendicular to the base line 210 by a measuring ruler, and determining an angle point corresponding to the angle identifier 140 on the reference line 240, wherein the reference line 240 and the base line 210 are compared with the central point 230;

the angle to be measured is an included angle between the angle axis 250 and the base line 210, the angle axis 250 intersects with the base point 220, and the included angle or the estimated included angle is determined according to the intersection point of the angle axis 250 and the reference line 240.

Specifically, as shown in fig. 1 to 4, when the measuring tape is a measuring tape 100, the measuring tape 100 includes a tape 110, and the first mark 120, the second mark 130 and the angle mark 140 are located on the same straight line of the tape 110, that is, the points pointed by the first mark 120, the second mark 130 and the angle mark 140 are located on the same straight line, in this embodiment, the points pointed by the first mark 120, the second mark 130 and the angle mark 140 are all located on the edge of the tape 110.

The angle indication 140 comprises a plurality of, for example, the angle indication 140 comprises 5 °, 10 °, 15 °, 20 °, 22.5 °, 30 °, 40 °, 45 °, 50 ° and/or 60 °.

When measuring an angle with the tape measure 100, a base line 210 is determined, a base point 220 and a center point 230 are determined on the base line 210 according to the first mark 120 and the second mark 130 of the measuring tape, as shown in fig. 4, the tape 110 is transversely placed as shown in fig. 4, the base point 220 is determined according to the first mark 120 of the measuring tape, and the center point 230 is determined according to the second mark 130 of the measuring tape.

A reference line 240 perpendicular to the base line 210 is determined by measuring the ruler, the reference line 240 and the base line 210 are compared with the central point 230, the ruler strip 110 is placed in a vertical state as shown in FIG. 4, the first mark 120 and the central point 230 are coincident, and an angle point corresponding to the angle mark 140 is determined on the reference line 240.

The angle to be measured is an included angle between the angle axis 250 and the base line 210, the angle axis 250 intersects with the base point 220, and the included angle or the estimated included angle is determined according to the intersection point of the angle axis 250 and the reference line 240. As shown in fig. 4, three angular axes 250 are shown, from top to bottom, a first, a second and a third, respectively. The intersection of the first line with the reference line 240 at the 5 deg. mark 241 results in a 5 deg. angle between the first line and the baseline 210. The intersection of the second strip with the reference line 240 between the 10 deg. marker 242 and the 15 deg. marker 243 allows the second strip to be estimated to be at an angle of between 10-15 deg., such as 13 deg., to the baseline 210. The third bar intersects the reference line 240 at a 30 deg. mark 244.

The measuring scale comprises a length measuring mark 150, and the zero point of the length measuring mark 150 is coincident with the first mark 120. Thus, the measuring scale can measure the length and the angle. As shown in FIG. 2, the 45 marker 245 and the second marker 130 are located at the same point, e.g., the 45 marker 245 is located at 30.8cm of the length measurement marker 150, and the second marker 130 is also located at 30.8cm of the length measurement marker 150.

The length measuring mark 150 and the angle mark 140 are located on the same surface of the measuring scale as shown in fig. 2, or the length measuring mark 150 and the angle mark 140 are located on different surfaces of the measuring scale as shown in fig. 3.

As shown in fig. 3, the angle indicator 140 includes an angle scale line, and the angle scale line is obliquely arranged. The inclination angle of the angle scale line gradually increases with the increase of the angle. This allows for a more intuitive presentation of the different angle markings 140.

When the measuring tape is a straight rule 300, a tape 400 or an angle 500, the measuring method is consistent with the tape 100.

As shown in fig. 6, the measuring ruler is an L-shaped ruler, the measuring ruler includes a first ruler body 610 and a second ruler body 620 perpendicular to each other, the first mark 120 is located at the junction of the first ruler body 610 and the second ruler body 620, the second mark 130 is located on the first ruler body 610, and the angle mark 140 is located on the second ruler body 620. The first ruler body 610 is aligned with the base line 210 or the base line 210 is determined, the center point 230 is determined according to the first mark 120, the base point 220 is determined according to the second mark 130, the reference line 240 can be directly determined by the second ruler body 620, and the angle point corresponding to the angle mark 140 can be determined without adjusting the position of the measuring ruler. Alternatively, the first mark 120, the second mark 130 and the angle mark 140 may be provided on the same tape body, and then the angle may be measured in the same manner as the tape 100.

Claims

1. An angular measurement ruler, characterized in that the measurement ruler is provided with a first mark (120), a second mark (130) and an angle mark (140), the first mark (120) and the second mark (130) are positioned on the same straight line, the angle mark (140) is positioned on the same straight line with the first mark (120) and/or the second mark (130), and the tangent value of the angle marked by the angle mark (140) is the ratio of the distance from the angle mark (140) to the first mark (120) to the distance from the second mark (130) to the first mark (120); the measuring scale comprises a length measuring mark (150), and the zero point of the length measuring mark (150) is coincided with the first mark (120); the angle marks (140) comprise a plurality of angle marks, and the degrees of the angle marks are gradually increased from the first marks to the direction far away from the first marks.

2. The angular measurement ruler of claim 1, wherein said ruler is a tape measure (100) or a ruler (300), and said first indicator (120), said second indicator (130) and said angular indicator (140) are located on a same straight line.

3. The angular measurement scale of claim 1, wherein said length measurement indicia (150) and said angular indicia (140) are located on the same or different sides of the scale.

4. The angular measurement ruler of claim 1, wherein said angle indication (140) comprises 5 °, 10 °, 15 °, 20 °, 22.5 °, 30 °, 40 °, 45 °, 50 ° and/or 60 °.

5. The angular measuring scale according to any one of claims 1-4, wherein the angular markings (140) comprise angular graduation marks, which are arranged obliquely.

6. An angular measurement scale according to claim 5, wherein the angle of inclination of the angle scale markings increases progressively with increasing angle.

7. The angular measuring scale according to claim 1, wherein said scale comprises a first (610) and a second (620) mutually perpendicular, said first marking (120) being located at the intersection of said first (610) and said second (620) bodies, said second marking (130) being located on said first body (610), said angular marking (140) being located on said second body (620).

8. An angle measuring method based on the measuring ruler of claim 1, characterized in that the measuring ruler is provided with a first mark (120), a second mark (130) and an angle mark (140), the first mark (120) and the second mark (130) are positioned on the same straight line, the angle mark (140) is positioned on the same straight line with the first mark (120) and/or the second mark (130), and the tangent value of the angle marked by the angle mark (140) is the ratio of the distance from the angle mark (140) to the first mark (120) and the distance from the second mark (130) to the first mark (120); the measuring scale comprises a length measuring mark (150), and the zero point of the length measuring mark (150) is coincided with the first mark (120); the angle marks (140) comprise a plurality of angle marks, and the degrees of the angle marks are gradually increased from the first marks to the direction far away from the first marks; the angle measuring method comprises the following steps:

determining a base line (210) and determining a base point (220) and a center point (230) on the base line (210) based on the first identification (120) and the second identification (130) of the measuring scale;

determining a reference line (240) perpendicular to the base line (210) by measuring a scale, and determining an angle point corresponding to an angle identifier (140) on the reference line (240), the reference line (240) and the base line (210) being compared to the center point (230);

the angle to be measured is an included angle between an angle axis (250) and a base line (210), the angle axis (250) is intersected with the base point (220), and the included angle or the estimated included angle is determined according to the intersection point of the angle axis (250) and the reference line (240).