CN218616022U

CN218616022U - Rotating shaft connector of combined ruler

Info

Publication number: CN218616022U
Application number: CN202223139517.8U
Authority: CN
Inventors: 拉穷
Original assignee: Tibet University
Current assignee: Tibet University
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-03-14
Anticipated expiration: 2032-11-25

Abstract

The utility model discloses a pivot conjunction of combination chi utensil, including long chi board and set up in the angulation semicircle board of long chi board one side, the axle center of angulation semicircle board is provided with main pivot, and the outer wall axial of main pivot rotates and is provided with the swing board, the swing board along main pivot rotate and with long chi between the board form the contained angle, the screw thread rotation is provided with the tighrening ring in the main pivot. The utility model discloses a combination chi utensil that provides, utilize long chi board in order conveniently to carry out sharp measurement, the outer wall axial that utilizes the long chi board of angulation semicircle board cooperation and main pivot rotates the swing board that sets up, the contained angle between drawing swing board and the long chi board that swing board contrast angulation semicircle board can be accurate, utilize the tighrening ring to fix between swing board and the angulation semicircle board contained angle, use the round mandrel that the first end axial of long chi board rotated the setting as the centre of a circle, and then can realize the circular shape and draw, the pivot conjunction compact structure of this combination chi utensil simultaneously, integrative multi-purpose and portable.

Description

Rotating shaft connector of combined ruler

Technical Field

The utility model relates to a combination chi utensil technical field relates to a pivot conjunction of combination chi utensil particularly.

Background

The ruler is used as stationery for teaching, and particularly can help teachers draw graphs through the use of different rulers in mathematical teaching.

Most of the existing rulers are of single types, such as a set square, a straight ruler, compasses, a protractor and the like, and due to the fact that the types are various, a teacher needs to carry multiple single rulers during teaching, the single rulers are inconvenient to carry, and particularly the ruler, the compasses and the protractor need to be a combined ruler which is simple in structure, convenient to use, small in size and capable of achieving linear, angle and circular drawing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pivot conjunction of combination chi utensil can realize sharp, angle and circular shape and draw, and the design of integral type is convenient for carry it simultaneously.

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a pivot conjunction of combination chi utensil, includes long chi board and sets up in the angulation semicircle board of long chi board one side, the axle center of angulation semicircle board is provided with main pivot, and the outer wall axial of main pivot rotates and is provided with the swing board, the swing board rotate along main pivot and with long chi between the board form the contained angle, the screw thread rotates in the main pivot and is provided with the tighrening ring, the slot has been seted up to the first end of swing board, and the first end axial of long chi board rotates and is provided with the circle mandrel.

Preferably, the swing plate is provided with a transverse groove, the outer wall of the main rotating shaft is provided with a fastening thread, and the fastening ring is assembled on the fastening thread in a threaded manner.

Preferably, the angle measuring semicircular plate is provided with angle scales, and the long ruler plate is provided with wired scales.

Preferably, the first end of the round mandrel is fixedly provided with an anti-skid rubber block.

Preferably, a flexible rubber ring is fixedly mounted on the inner wall of the slot.

Preferably, the length plate and the swinging plate are transparent plastic plates respectively.

In the technical scheme, the utility model provides a pair of pivot conjunction of combination chi utensil possesses following beneficial effect: through utilizing the long chi board to conveniently carry out sharp measurement, the outer wall axial that utilizes the long chi board of angulation semicircle board cooperation and main pivot simultaneously rotates the swing board that sets up, through the zero scale of long chi board as the basis, swing board contrast angulation semicircle board can be accurate draw the contained angle between swing board and the long chi board, furthermore, utilize the tighrening ring that the screw thread rotated the setting on the main pivot, so that fix between swing board and the angulation semicircle board, insert the chalk in the slot of the first end of swing board this moment, use the round mandrel that the first end axial of long chi board rotated the setting as the centre of a circle, and then can realize the circular drawing, the pivot conjunction compact structure of this combination chi utensil simultaneously, integrative multi-purpose and portable.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic overall structural diagram provided by an embodiment of the present invention;

fig. 2 is a schematic view of a part of the structure provided by the embodiment of the present invention.

Description of the reference numerals:

1. a long ruler plate; 2. a swing plate; 3. a fastening ring; 4. a main rotating shaft; 5. an angle measuring semicircular plate; 11. line graduation; 12. a circular mandrel; 13. an anti-slip rubber block; 21. a transverse groove; 22. a slot; 23. a flexible rubber ring; 41. fastening threads; 51. and (6) angle calibration.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-2, a rotating shaft connector of a combined ruler comprises a long ruler plate 1 and a protractor semi-circular plate 5 arranged on one side of the long ruler plate 1, wherein a main rotating shaft 4 is arranged at the axis of the protractor semi-circular plate 5, an oscillating plate 2 is arranged on the outer wall of the main rotating shaft 4 in an axial rotating manner, the oscillating plate 2 rotates along the main rotating shaft 4 and forms an included angle with the long ruler plate 1, a fastening ring 3 is arranged on the main rotating shaft 4 in a threaded rotating manner, a slot 22 is formed in a first end of the oscillating plate 2, and a circular mandrel 12 is arranged on the first end of the long ruler plate 1 in the axial rotating manner. Through utilizing ruler board 1 to conveniently carry out sharp measurement, utilize simultaneously the swing board 2 that the outer wall axial rotation of protractor board 1 and main pivot 4 set up of protractor semicircle board 5 cooperation ruler board 1 and main pivot 4, through the zero scale of long ruler board 1 as the basis, swing board 2 can be accurate drawing swing board 2 and the contained angle between the ruler board 1 than protractor semicircle board 5, furthermore, utilize the tighrening ring 3 that the screw thread rotation set up on the main pivot 4, so that fixed between swing board 2 and the protractor semicircle board 5, insert the chalk in the slot 22 of swing board 2 first end this moment, use the round mandrel 12 that the first end axial rotation of ruler board 1 set up as the centre of a circle, and then can realize circular drawing, the pivot conjunction compact structure of this combination ruler utensil simultaneously, integrative multi-purpose and portable.

As shown in fig. 1, as the utility model provides a further technical scheme has seted up the cross slot 21 on the swing board 2, utilizes the cross slot 21 to in the contained angle between swing board 2 and long chi board 1 is fixed, draw along the cross slot 21, thereby reachs accurate contained angle, fastening screw 41 has been seted up to the outer wall of main pivot 4 simultaneously, utilizes the screw assembly of tighrening ring 3 on fastening screw 41, with the board 2 is swung in the extrusion, cooperation angulometry semicircle board 5 is with clamping swing board 2.

Furthermore, be provided with angle scale 51 on the angularity semicircle board 5, and be provided with line scale 11 on the long ruler board 1, through angle scale 51 so that carry out the measurement and the drawing of angle, utilize the length of the drawing line that line scale 11 can be accurate simultaneously.

Furthermore, the first end of the round mandrel 12 is fixedly provided with an anti-slip rubber block 13, and the anti-slip rubber block 13 can reduce the slip of the round mandrel 12 when contacting the blackboard, so as to better draw a round shape.

Specifically, the inner wall of the slot 22 is fixedly provided with the flexible rubber ring 23, and the flexible rubber ring 23 can be used for better clamping the chalk, so that the chalk is prevented from slipping from the slot 22.

More specifically, long chi board 1 and swing board 2 are transparent plastic plate respectively, adopt transparent plastic plate to avoid sheltering from the pattern because of long chi board 1 and angulation semicircle board 5 and lead to drawing the pattern inaccurate.

Further, the swing plate 2 is swung to be close to the long board 1 so as to store the swing plate 2, thereby facilitating the carrying of the long board 1.

The working principle is as follows: through utilizing ruler board 1 in order to conveniently carry out sharp measurement, when needing to carry out the drawing of angle, through fixed ruler board 1 and rotatory swing board 2, compare the angle scale 51 on the protractor semicircle board 5 this moment, with the contained angle between regulation ruler board 1 and the swing board 2, through twisting the tighrening ring 3 soon, with extrusion swing board 2, cooperation protractor semicircle board 5 is with clamping swing board 2, the contained angle between ruler board 1 and the swing board 2 is fixed this moment, insert the chalk in the slot 22 of swing board 2 first end when needing to draw circularly, through the interval between the chalk in adjusting round axle 12 and the slot 22 with the radius of definite circle, use round axle 12 as the centre of circle point, thereby be convenient for carry out circular drawing.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides a pivot conjunction of combination chi utensil, its characterized in that includes long chi board (1) and sets up in protractor semicircle board (5) of long chi board (1) one side, the axle center of protractor semicircle board (5) is provided with main pivot (4), and the outer wall axial rotation of main pivot (4) is provided with wobble plate (2), wobble plate (2) along main pivot (4) rotate and with long chi board (1) between form the contained angle, the screw rotation is provided with tighrening ring (3) on main pivot (4), slot (22) have been seted up to the first end of wobble plate (2), and the first end axial rotation of long chi board (1) is provided with round core axle (12).

2. The rotating shaft combination of the combined ruler and appliance according to claim 1, wherein the swinging plate (2) is provided with a transverse groove (21), the outer wall of the main rotating shaft (4) is provided with a fastening thread (41), and the fastening ring (3) is screwed on the fastening thread (41).

3. The rotating shaft combination of a combined ruler according to claim 1, wherein the angle-measuring semicircular plate (5) is provided with angle scales (51), and the long ruler plate (1) is provided with line scales (11).

4. The rotating shaft combination of a combined ruler and appliance according to claim 1, wherein the first end of the circular mandrel (12) is fixedly installed with an anti-skid rubber block (13).

5. The rotary shaft connector of a combined ruler according to claim 1, wherein the inner wall of the slot (22) is fixedly provided with a flexible rubber ring (23).

6. The rotating shaft combination of a combined ruler and appliance according to claim 1, wherein the long ruler plate (1) and the swinging plate (2) are transparent plastic plates respectively.