CN112229292A

CN112229292A - Paper protractor

Info

Publication number: CN112229292A
Application number: CN202011153772.0A
Authority: CN
Inventors: 聂小安; 郭方元; 王海文
Original assignee: Zhejiang Minong Century Group Co ltd
Current assignee: Zhejiang Minong Century Group Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-01-15

Abstract

The invention discloses a paper protractor, which belongs to the field of protractors and comprises a bottom plate, wherein a scale sliding guide rail is arranged on one side of the bottom plate, a sliding scale is arranged on the scale sliding guide rail, the sliding scale comprises a sliding block, a scale fixing seat and a scale, the scale fixing seat is fixed on the sliding block, the sliding block is arranged above the sliding guide rail, the scale is arranged on the scale fixing seat, and a long barrier strip and a short barrier strip which are perpendicular to each other are arranged on the bottom plate. When the invention is used for measurement, two side edges of the paper can be quickly positioned through the long barrier strips and the short barrier strips respectively, so that the measurement error caused by the deflection of manual operation gestures and the deformation of a film ruler is reduced; the right angle offset of the cut edge of the paper at different heights can be directly read by using a movable scale, and whether an arc edge exists during cutting of the seaming edge of the paper can be checked; the scale is detachable, so that the battery and the scale can be conveniently replaced; and the magnifying glass is adopted to facilitate accurate reading.

Description

Paper protractor

Technical Field

The invention relates to the field of protractors, in particular to a paper protractor.

Background

The inclination of the right-angle side of the paper cutting edge is an important index of high and low paper quality, the whole film ruler is generally used for measuring the inclination degree of the right-angle side of the paper cutting edge at present, the paper bite edge is aligned with one side of the film ruler, the inclined bottom of the right-angle side of the paper is determined by observing the offset of the body side of the paper on the film ruler, and the operation of gestures and the deformation degree of the film ruler influence the accuracy of a measuring result; and the scale is usually small, so that the reading is inconvenient and error is easy to generate.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a paper protractor.

The technical scheme of the invention is as follows: the utility model provides a paper protractor, includes the bottom plate, one side on the bottom plate is equipped with sliding guide, the last slip scale that is equipped with of sliding guide, the slip scale includes the slider, scale fixing base and scale, the scale fixing base is fixed on the slider, the slider is established in sliding guide's top, be equipped with the scale on the scale fixing base, be equipped with long blend stop and short blend stop on the bottom plate, the one end of long blend stop is equipped with short blend stop, long blend stop and short blend stop mutually perpendicular.

The scale fixing base is provided with a magnifier, and the magnifier is arranged above the scale.

The scale fixing base is provided with an LED lamp, and the LED lamp is arranged on one side of the scale.

The scale fixing seat is fixed on the sliding block through four fixing screws.

One side of scale fixed block is equipped with the switch, be equipped with the battery in the scale fixed block, LED lamp, battery and switch interconnect are in the same place.

The upper side of the bottom plate is provided with a striking coating, and the striking marks are arranged on one side of the sliding guide rail and below the sliding scale.

The long barrier strip and the short barrier strip are of an integrated structure.

The height of long barrier strip and short barrier strip is 5 mm.

When the invention is used for measurement, two side edges of the paper can be quickly positioned through the long barrier strips and the short barrier strips respectively, so that the time for aligning with the seaming edge when the film ruler is used for measurement is saved, and the measurement error caused by the deflection of manual operation gestures and the deformation of the film ruler is reduced through the barrier strip positioning; the movable ruler is used for replacing a film ruler for measurement, so that the right angle offset of the cut edge of the paper at different heights can be directly read, and whether an arc edge exists during cutting of the paper bite edge can be checked; the scale is detachable, so that the battery and the scale can be conveniently replaced; and the magnifying glass is adopted to facilitate accurate reading.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a sliding scale;

FIG. 3 is a schematic view of the present invention in use;

in the figure: 1-bottom plate, 2-sliding guide rail, 3-sliding block, 4-scale fixing seat, 5-scale, 6-magnifying glass, 7-long barrier strip, 8-short barrier strip, 9-fixing screw, 10-LED lamp, 11-eye-catching coating and 12-paper.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

as shown in fig. 1-2, a paper protractor, includes bottom plate 1, one side on the bottom plate 1 is equipped with sliding guide 2, be equipped with the slip scale on the sliding guide 2, the slip scale includes slider 3, scale fixing base 4 and scale 5, scale fixing base 4 is fixed on slider 3 through four set screw 9, slider 3 is established in sliding guide 2's top, be equipped with scale 5 on scale fixing base 4, be equipped with long blend stop 7 and short blend stop 8 on the bottom plate, the one end of long blend stop 7 is equipped with short blend stop 8, long blend stop 7 and short blend stop 8 mutually perpendicular, the height of long blend stop 7 and short blend stop 8 is 5mm, long blend stop 7 and short blend stop 8 formula structure as an organic whole. The scale fixing seat 4 is provided with the magnifying glass 6, and the magnifying glass 6 is arranged above the scale 5, so that the reading is convenient and accurate.

As shown in fig. 2, be equipped with LED lamp 10 on scale fixing base 4, LED lamp 10 is established in one side of scale 5, one side of scale fixed block 4 is equipped with the switch, be equipped with the battery in the scale fixed block 4, LED lamp 10, battery and switch interconnect are in the same place, and the scale is located the below of magnifying glass, presses the switching circuit intercommunication, and LED lamp 10 is luminous to illuminate scale 5, has solved the problem of the difficult reading when light is darker.

The top of bottom plate 1 is equipped with red striking coating 11, striking coating 11 is established in one side of sliding guide 2 and the below of sliding scale, and striking coating 11 has great difference with the colour of paper, can conveniently distinguish the boundary of paper 12, the accurate reading of being convenient for.

As shown in fig. 3, when in use, paper 12 is placed on the bottom plate 1, one side edge of the paper 12 abuts against the side surface of the short barrier strip 8, the other side edge of the paper 12 perpendicular to the other side edge abuts against the side surface of the long barrier strip 7, and if the side edge cannot be tightly attached to the long barrier strip 2, the side edge is judged to have an arc edge phenomenon; the paper 12 is positioned by the long barrier strip 7 and the short barrier strip 8, so that the time for aligning with the seaming edge when the film ruler is used for measurement is saved, the long barrier strip 7 and the short barrier strip 8 are good in stability, and the measurement error caused by the deflection of a manual operation gesture and the deformation of the film ruler is reduced; the ruler is moved after the paper 12 is positioned, and the offset angles of different positions of the right-angle edge of the paper can be conveniently and accurately read through the magnifier 6.

Claims

1. A paper protractor, comprising a base plate (1), characterized in that: one side on bottom plate (1) is equipped with sliding guide (2), be equipped with the slip scale on sliding guide (2), the slip scale includes slider (3), scale fixing base (4) and scale (5), scale fixing base (4) are fixed on slider (3), the top at sliding guide (2) is established in slider (3), be equipped with scale (5) on scale fixing base (4), be equipped with long blend stop (7) and short blend stop (8) on the bottom plate, the one end of long blend stop (7) is equipped with short blend stop (8), long blend stop (7) and short blend stop (8) mutually perpendicular.

2. The paper protractor of claim 1, wherein: the ruler fixing seat (4) is provided with a magnifier (6), and the magnifier (6) is arranged above the ruler (5).

3. The paper protractor of claim 1, wherein: the LED scale is characterized in that an LED lamp (10) is arranged on the scale fixing seat (4), and the LED lamp (10) is arranged on one side of the scale (5).

4. The paper protractor of claim 1, wherein: the scale fixing seat (4) is fixed on the sliding block (3) through four fixing screws (9).

5. The paper protractor of claim 1, wherein: one side of scale fixed block (4) is equipped with the switch, be equipped with the battery in scale fixed block (4), LED lamp (10), battery and switch interconnect are in the same place.

6. The paper protractor of claim 1, wherein: the upper side of the bottom plate (1) is provided with a striking coating (11), and the striking coating (11) is arranged on one side of the sliding guide rail (2) and below the sliding scale.

7. The paper protractor of claim 1, wherein: the long barrier strips (7) and the short barrier strips (8) are of an integrated structure.

8. The paper protractor of claim 1, wherein: the height of the long barrier strips (7) and the height of the short barrier strips (8) are 5 mm.