CN218616024U

CN218616024U - Blackboard-writing drawing rule for teaching

Info

Publication number: CN218616024U
Application number: CN202222417778.5U
Authority: CN
Inventors: 张伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-03-14
Anticipated expiration: 2032-09-13

Abstract

The utility model discloses a writing on blackboard drawing rule is used in teaching, including two the teaching set square, two the inserting groove has all been seted up on the lateral wall of teaching set square, every equal sliding connection has the grafting piece in the inserting groove, two fixed connection is on the lateral wall of two teaching set squares respectively to the grafting piece, two all rotate through the pivot on the right angle department lateral wall of teaching set square and be connected with set rule subassembly. The utility model discloses a set up two teaching set squares, inserting groove and grafting piece and can dismantle, convenient to carry through setting up set rule, can use a ruler of exclusive use when needs or need draw one section longer line segment, uses teaching set square and first straight rule to draw together, convenient and practical, simple reasonable.

Description

Blackboard-writing drawing rule for teaching

Technical Field

The utility model relates to a drawing rule technical field especially relates to a blackboard-writing drawing rule for teaching.

Background

Teaching is a human-specific talent training activity consisting of teacher's teaching and student's learning. Through the activities, teachers purposefully, programmatically and organically guide students to learn and master cultural scientific knowledge and skills, and promote the improvement of the qualities of the students, so that the students become people required by the society.

Chinese patent publication No. CN205364945U discloses a combined drawing rule for mathematical education. The second drawing rule and the third drawing rule are provided with vacuum chucks, the second drawing rule is provided with an elongated slot which is communicated with one end, the width of the elongated slot is matched with the thickness of the first drawing rule, the first drawing rule is inserted into the elongated slot and is hinged with the elongated slot, the first drawing rule is provided with a plurality of through holes which are connected with the centers and are positioned on the same horizontal line, the second drawing rule is rotatably connected with the third drawing rule, the third drawing rule is provided with a groove and is connected with a protractor which is provided with a through slot in the middle, the width of the through slot is matched with the thickness of the fourth drawing rule, and the fourth drawing rule is hinged with the protractor.

However, in the above-mentioned scheme, first drawing rule, the second drawing rule, and third drawing rule all are articulated or rotate and connect, can not take off exclusive use, when wanting the exclusive use ruler, need carry out synchronous operation with first drawing rule, second drawing rule and third drawing rule, inconvenient operation, and traditional drawing ruler length is longer, and set up for fixed integration, be not convenient for adjust and receive and release, when carrying, easily make the drawing ruler touch pedestrian or object, on the one hand easy accidental injury other people, on the other hand still can cause the drawing rule to break, the influence is used, therefore, we provide a writing on blackboard drawing rule for teaching.

SUMMERY OF THE UTILITY MODEL

The utility model provides a blackboard writing drawing rule is used in teaching to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a writing on blackboard drawing rule for teaching, includes two the teaching set square, two the inserting groove has all been seted up on the lateral wall of teaching set square, every equal sliding connection has the grafting piece in the inserting groove, two the grafting piece is fixed connection respectively on the lateral wall of two teaching set squares, two all be connected with set chi subassembly through the pivot rotation on the right angle department lateral wall of teaching set square.

As a further improvement scheme of the technical scheme: every the cover chi subassembly includes first ruler, every the sliding tray that is to run through the setting is seted up to first ruler lateral wall, every first ruler is the setting of U type, every first ruler all is connected with second ruler, every through slider width looks adaptation between the wall of the thickness of second ruler and the upper and lower both sides of sliding tray.

As a further improvement scheme of the technical scheme: every slider includes protruding slide rail and concave slide rail, every protruding slide rail all establishes the last lateral wall at the sliding tray, every concave slide rail is all established on the lateral wall of second ruler, every protruding width of protruding slide rail and the sunken width looks adaptation of concave slide rail, every protruding slide rail sliding connection is in concave slide rail.

As a further improvement scheme of the technical scheme: and a fixing block is arranged on the side wall of one end of each second ruler, and each fixing block is arranged in a cuboid shape.

As a further improvement scheme of the technical scheme: every equal fixedly connected with magnetic stripe, every on the lateral wall of teaching set square the magnetic stripe all is the setting of L type.

As a further improvement scheme of the technical scheme: arc-shaped grooves are formed in the side wall of each teaching set square, each arc-shaped groove is semicircular, and the diameters of the two arc-shaped grooves are the same.

As a further improvement scheme of the technical scheme: every teaching set square, first ruler, second ruler and plug-in block all adopt stainless steel.

Compared with the prior art, the beneficial effects of the utility model are that: can dismantle through setting up two teaching set squares, inserting groove and grafting piece, convenient to carry through setting up set rule, can use a ruler of exclusive use when needs or need draw one section longer line section, uses teaching set square and first straight rule to draw together, convenient and practical, simple reasonable.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

fig. 1 is a schematic top view of a drawing ruler for teaching blackboard writing according to the present invention;

FIG. 2 is a schematic perspective view of a set of ruler in the teaching blackboard-writing drawing ruler of the present invention;

FIG. 3 is a schematic side view of a set of ruler in the teaching blackboard-writing drawing ruler of the present invention;

fig. 4 is a schematic front sectional structural view of a first ruler in the blackboard-writing drawing ruler for teaching according to the present invention;

FIG. 5 is an enlarged view of A in FIG. 2;

fig. 6 is the structural schematic diagram of the second ruler in the blackboard-writing drawing ruler for teaching of the utility model.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a teaching set square; 2. inserting grooves; 3. a fixed block; 4. a first straightedge; 5. a second straightedge; 6. a rotating shaft; 7. an arc-shaped slot; 8. an insertion block; 9. a concave slide rail; 10. a convex slide rail; 11. a sliding groove; 12. a magnetic strip.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1-6, in an embodiment of the present invention, a writing on blackboard drawing rule for teaching, including two teaching set squares 1, inserting groove 2 has all been seted up on the lateral wall of two teaching set squares 1, and equal sliding connection has inserting block 8 in every inserting groove 2, and two inserting block 8 are fixed connection respectively on the lateral wall of two teaching set squares 1, all are connected with set rule subassembly through 6 rotations of pivot on the right angle department lateral wall of two teaching set squares 1.

Referring to fig. 1-6, each set of ruler assembly includes a first ruler 4, a sliding groove 11 is formed in a side wall of each first ruler 4 in a penetrating manner, so that each first ruler 4 is U-shaped, each first ruler 4 is connected with a second ruler 5 through a sliding device, the thickness of each second ruler 5 is adapted to the width between the upper side wall and the lower side wall of the sliding groove 11, and the second ruler 5 can be accommodated in the first ruler 4.

Referring to fig. 2-5, each sliding device includes a convex sliding rail 10 and a concave sliding rail 9, each convex sliding rail 10 is disposed on the upper side wall of the sliding groove 11, each concave sliding rail 9 is disposed on the side wall of the second ruler 5, the convex width of each convex sliding rail 10 is matched with the concave width of the concave sliding rail 9, each convex sliding rail 10 is slidably connected in the concave sliding rail 9, and the second ruler 5 can slide in the first ruler 4 by the convex sliding rail 10 sliding in the concave sliding rail 9.

Referring to fig. 1 to 6, a fixing block 3 is disposed on a side wall of one end of each second ruler 5, each fixing block 3 is disposed in a rectangular shape, and when the second ruler 5 is placed in the first ruler 4, the fixing block 3 is pulled to pull out the second ruler 5.

Referring to fig. 1, the side wall of each teaching set square 1 is fixedly connected with a magnetic stripe 12, each magnetic stripe 12 is arranged in an L shape, and the drawing rule can be fixed on the teaching blackboard by being adsorbed by a magnet in the teaching blackboard.

Referring to fig. 1, the side wall of each teaching set square 1 is provided with an arc-shaped groove 7, each arc-shaped groove 7 is semicircular, the diameters of the two arc-shaped grooves 7 are the same, and when the two teaching set squares 1 are spliced together, a circle can be drawn through the two arc-shaped grooves 7.

Referring to fig. 1-6, each teaching set square 1, the first ruler 4, the second ruler 5 and the plug block 8 are made of stainless steel, and the stainless steel has good corrosion resistance and long service life.

The utility model discloses a theory of operation is: when the drawing rule needs to be used when the teaching blackboard writing, can peg graft in inserting groove 2 with the grafting piece 8 of two teaching set squares 1, the concatenation is in the same place, place the drawing rule that splices on the teaching blackboard, accessible and the interior magnet absorption of teaching blackboard, make the drawing rule fix on the teaching blackboard, can draw circularly according to the drawing rule, square or equilateral triangle, when longer one section line section needs to be drawn, it can draw to the position that flushes with teaching set square 1 to rotate first straight rule 4 through pivot 6, if still not long enough, can pull fixed block 3, slide in concave slide rail 9 through protruding slide rail 10, pull out second ruler 5 from the sliding tray 11 of first straight rule 4, draw to required length and can draw, use an solitary ruler as needs, can pull out second ruler 5 is whole, after finishing using, put into second ruler 5 between the both sides wall of first straight rule 4, slide in concave slide rail 9 through protruding slide rail 10, push away to the inboard of first straight rule 4, then change first ruler 4 to the side wall of teaching set square 1 through pivot 6 always, convenient for carrying two blocks of the teaching set squares 2 again, the grafting is convenient for carrying.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; all the persons skilled in the art can smoothly implement the present invention as shown in the attached drawings and described above; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a writing on blackboard drawing rule for teaching, includes two teaching set squares (1), its characterized in that, two inserting groove (2) have all been seted up on the lateral wall of teaching set square (1), every equal sliding connection has plug-in block (8) in inserting groove (2), two plug-in block (8) fixed connection respectively is on the lateral wall of two teaching set squares (1), two all rotate through pivot (6) on the right angle department lateral wall of teaching set square (1) and be connected with set square subassembly.

2. The blackboard-writing drawing rule for teaching as claimed in claim 1, characterized in that each rule set component comprises a first ruler (4), a sliding groove (11) is formed in the side wall of each first ruler (4) in a penetrating mode, each first ruler (4) is arranged in a U shape, each first ruler (4) is connected with a second ruler (5) through a sliding device, and the thickness of each second ruler (5) is matched with the width between the upper side wall and the lower side wall of the sliding groove (11).

3. A teaching blackboard-writing drawing rule according to claim 2, characterized in that each sliding device comprises a convex sliding rail (10) and a concave sliding rail (9), each convex sliding rail (10) is arranged on the upper side wall of the sliding groove (11), each concave sliding rail (9) is arranged on the side wall of the second ruler (5), the convex width of each convex sliding rail (10) is matched with the concave width of the concave sliding rail (9), and each convex sliding rail (10) is slidably connected in the concave sliding rail (9).

4. A teaching blackboard-writing drawing rule as claimed in claim 3, characterised in that a fixing block (3) is provided on one end side wall of each second ruler (5), each fixing block (3) being rectangular.

5. The blackboard-writing drawing rule for teaching as claimed in claim 1, characterized in that a magnetic stripe (12) is fixedly connected to the side wall of each teaching set square (1), and each magnetic stripe (12) is arranged in an L shape.

6. The blackboard-writing drawing rule for teaching as claimed in claim 1, characterized in that the side wall of each teaching set square (1) is provided with an arc-shaped groove (7), each arc-shaped groove (7) is arranged in a semicircular shape, and the diameters of the two arc-shaped grooves (7) are the same.

7. Drawing ruler for teaching blackboard writing according to claim 1, characterized in that each of the teaching set square (1), the first ruler (4), the second ruler (5) and the plug block (8) is made of stainless steel.