CN210881462U

CN210881462U - Ruler and compasses combined stationery

Info

Publication number: CN210881462U
Application number: CN201921458736.8U
Authority: CN
Inventors: 袁诗琦; 李丹; 田书铭; 刘英慧
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-06-30
Anticipated expiration: 2029-09-04

Abstract

The utility model discloses a ruler and compass combination stationery relates to the technical field of drawing utensil, including main protractor, main shaft, slip pen, ruler, the ruler is equipped with a spout, the slip pen can slide in the spout, the main shaft is located the one end of spout, main protractor locates on the main shaft, main protractor has 360 degrees two-way calibrated scale, the main shaft bottom has the steel needle for fixed centre of a circle, the spout other end is equipped with the auxiliary shaft, be equipped with the assistance protractor on the auxiliary shaft, the auxiliary shaft bottom is equipped with the refill, the auxiliary shaft can slide in the spout, the utility model discloses combine ruler and protractor as integration stationery, can draw out plane figure such as straight line, angle, circle or circular arc, the function is complete, compact structure, portable, practicality are strong.

Description

Ruler and compasses combined stationery

Technical Field

The utility model belongs to the technical field of drawing appliance's technique and specifically relates to a ruler and compasses combined stationery.

Background

Various stationeries are frequently used in schools and at home, students often take the stationeries incompletely or lose the stationeries, learning efficiency is influenced, and how to well combine the various stationeries together can also play more functions while playing respective original functions, so that learning is better assisted to solve the problem to be solved by the patent.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ruler combination stationery combines multiple stationery well together, lets them can also exert more functions when exerting original function separately to supplementary study better.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a ruler and compass combination stationery, includes main protractor, main shaft, sliding pen, ruler, the ruler is equipped with a spout, sliding pen can slide in the spout, the main shaft is located the one end of spout, main protractor is located on the main shaft, main protractor has 360 two-way calibrated scales of degree, the main shaft bottom has the steel needle for fixed centre of a circle, the spout other end is equipped with the auxiliary shaft, be equipped with the assistance protractor on the auxiliary shaft, the auxiliary shaft bottom is equipped with the refill, the auxiliary shaft can slide in the spout.

As an embodiment of the present invention, the sliding groove is located above the scale marks of the ruler, the main shaft, the auxiliary shaft, and the axis of the sliding pen are located on a straight line.

As a preferred embodiment of the present invention, the main protractor and the main shaft are detachably connected.

As a preferred embodiment of the present invention, the auxiliary protractor and the auxiliary shaft are detachably connected.

As a preferred embodiment of the present invention, the diameter of the connecting end of the sliding groove and the main shaft is greater than the width of the sliding groove, so that the main shaft is fixed.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses combine ruler, protractor and compasses as integration stationery, can carry out basic measurement function, can also draw plane figures such as straight line, angle, circle, circular arc or triangle-shaped according to required numerical value, the function is complete, compact structure, portable and practicality are strong.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a ruler and compasses combined stationery of the utility model;

fig. 2 is a schematic structural view of the straightedge of fig. 1;

FIG. 3 is a schematic view of the spindle of FIG. 1;

fig. 4 is a schematic structural view of the auxiliary shaft in fig. 1.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-4, the ruler and compasses combined stationery comprises: main protractor 1, main shaft 2, sliding pen 3, ruler 4 is used for measuring or confirms length, for example the radius of circle or circular arc, perhaps triangle-shaped's length of side, ruler 4 is equipped with a spout 41, sliding pen 3 can slide in spout 41, sliding pen can slide on the ruler for confirm the radius of circle or circular arc, can fix it after confirming the radius and then rotatory drawing, main shaft 2 locates the one end of spout 41, main protractor 1 locates on main shaft 2, main protractor 1 has 360 degree two-way calibrated scale, can measure the angle within 360 degrees, perhaps confirms the angle of circle, circular arc or triangle-shaped, and two-way scale is convenient to be measured or is drawn the angle or the circular arc of left hand opening (the 0 scale position of another group's scale is located the 180 degree scale position of basic scale group). 2 bottoms of main shaft have steel needle 21 for fixed centre of a circle, the spout 41 other end is equipped with auxiliary shaft 5, be equipped with on auxiliary shaft 5 and assist protractor 6, auxiliary shaft 5 bottom is equipped with refill 51, auxiliary shaft 5 can slide in spout 41, auxiliary shaft is used for sliding in order to confirm triangle-shaped's length of side on the ruler, assist protractor 6 is used for measuring triangle-shaped's interior angle (main protractor 1 is used for measuring another interior angle of triangle-shaped), the utility model discloses combine ruler, protractor and compasses as integration stationery, can be used for measuring line segment, angle, can also draw plane figures such as straight line, angle, circle, circular arc or triangle-shaped, and the function is complete, compact structure, portable and the practicality is strong.

Preferably, the sliding groove 41 is located above the scale marks of the ruler 4, and the axes of the main shaft 2, the auxiliary shaft 5 and the sliding pen 3 are located on a straight line.

Preferably, the main protractor 1 is detachably connected with the main shaft 2, the auxiliary protractor 6 is detachably connected with the auxiliary shaft 5, and the sliding pen 3 is detachably connected with the ruler 4, so that the portable and replaceable parts are realized.

Preferably, the diameter of the connecting end of the sliding groove 41 and the main shaft 2 is larger than the width of the sliding groove 41, so that the main shaft 2 is fixed.

The working principle is as follows:

drawing circles of constant radius

The main shaft 2 is fixed, the sliding pen 3 slides to the position with the required radius in the sliding groove 41, and then the sliding pen is fixed and rotates to draw a circle.

Drawing arcs of fixed radius and fixed angle

The main shaft 2 is fixed, the sliding pen 3 slides to the position with the required radius in the sliding groove 41, then the sliding pen is fixed, the sliding pen is rotated to the specified angle, and an arc is drawn.

Triangle with fixed drawing angle and fixed drawing side length

Drawing a triangle according to the condition that two corners and one side can uniquely determine a triangle (or converting the known condition of a given triangle into a corner-side angle condition), sliding an auxiliary shaft 5 with a pen core 51 on a sliding groove to a specified position to obtain one side of the triangle, respectively determining the angles of two corners adjacent to the side by using a main protractor 1 and an auxiliary protractor 6, and finally drawing the triangle (which can be expanded to draw a quadrangle or a polygon, and is completed by using the tool for multiple times).

the utility model discloses combine ruler and protractor as integration stationery, can draw plane figure such as straight line, angle, circle, circular arc or triangle-shaped, the function is complete, compact structure, portable and practicality are strong.

The basic principles and essential features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of being embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A ruler and compasses combined stationery, which is characterized in that the ruler and compasses combined stationery comprises: main protractor (1), main shaft (2), slip pen (3), ruler (4) are equipped with a spout (41), slip pen (3) can slide in spout (41), main shaft (2) are located the one end of spout (41), main protractor (1) are located on main shaft (2), main protractor (1) have 360 degrees two-way calibrated scale, main shaft (2) bottom has steel needle (21) for fixed centre of a circle, spout (41) other end is equipped with auxiliary shaft (5), be equipped with on auxiliary shaft (5) and assist protractor (6), auxiliary shaft (5) bottom is equipped with refill (51), auxiliary shaft (5) can slide in spout (41).

2. The ruler-gauge combination stationery of claim 1 further comprising: the sliding groove (41) is located above the scale lines of the ruler (4), and the main shaft (2), the auxiliary shaft (5) and the sliding pen (3) are located on the same straight line.

3. The ruler-gauge combination stationery of claim 1 further comprising: the main protractor (1) is detachably connected with the main shaft (2).

4. The ruler-gauge combination stationery of claim 1 further comprising: the auxiliary protractor (6) is detachably connected with the auxiliary shaft (5).

5. A ruler-combination stationery according to claim 1 or 2 wherein: the diameter of the connecting end of the sliding groove (41) and the main shaft (2) is larger than the width of the sliding groove (41), so that the main shaft (2) is fixed.