CN214647188U

CN214647188U - Drawing teaching aid capable of being adsorbed on steel blackboard

Info

Publication number: CN214647188U
Application number: CN202120130393.3U
Authority: CN
Inventors: 陈余溱
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-11-09
Anticipated expiration: 2031-01-18

Abstract

A drawing teaching aid capable of being adsorbed on a steel blackboard comprises a triangular plate, wherein the triangular plate comprises a bottom plate and two groups of inclined plates, the inclined plates are hinged at one ends close to each other, an installation block is arranged at the bottom ends of the inclined plates, article placing grooves are formed in the top ends of the baffle plates close to the left side and the right side, a first opening is formed in the front end of the article placing groove, a sliding groove is formed in the rear end of the bottom plate, the rear end of the bottom plate is located at the rear end of the article placing groove, a second opening is formed in the end of the sliding groove close to the article placing groove and communicated with the article placing groove, the installation block is placed in the article placing groove, a protractor is arranged at the rear end of the bottom plate, a first through hole is formed in the front end of the installation block, a telescopic device is arranged in the first through hole, a sliding plate is arranged at the front end of the article placing groove and a limiting groove, a second through hole is formed in the sliding plate close to one end of the article placing groove, and the device can move freely according to drawing requirements, the drawing efficiency and quality can be greatly improved, the use is simple and convenient, and the method is suitable for popularization and use.

Description

Drawing teaching aid capable of being adsorbed on steel blackboard

Technical Field

The utility model relates to a drawing teaching aid field specifically is a can adsorb drawing teaching aid on steel blackboard.

Background

The ruler, the protractor and the set square are important tools for teachers to draw on the blackboard during teaching courses of geometry, physics and the like. They are bulky, and when they are used on a blackboard with an upright wall, they are difficult to draw and inefficient because they need to be pressed by hand. In addition, steel blackboards are now increasingly used. In chemical or mechanical courses, teachers need to draw a large number of geometric figures, and the existing drawing teaching aids generally have drawing functions of straight lines, circles, triangles, rectangles and the like; but because the complexity of chemical industry equipment, when needing to draw structures such as polygon, concentric circles, current drawing teaching aid can't directly draw out, perhaps draws the process complicacy, has reduced teaching efficiency.

In the prior art, for example, a patent number "CN 97227210.0" is named as "drawing teaching aid capable of being attached to a steel blackboard", and the magnet may be in the form of a bar or a block. The magnet can be bonded, riveted and fastened, and can also be embedded in the material for manufacturing the teaching aid.

This drawing teaching aid that can adsorb on steel blackboard when using, single structure only can adsorb with the blackboard, and is too troublesome when taking, is not suitable for extensive popularization.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a can adsorb the drawing teaching aid on the steel blackboard.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a drawing teaching aid capable of being adsorbed on a steel blackboard comprises a triangular plate, wherein the triangular plate comprises a bottom plate and two groups of inclined plates, the inclined plates are hinged at one ends close to each other, an installation block is arranged at the bottom ends of the inclined plates, article placing grooves are formed in the top ends of the installation block close to the left side and the right side, a first opening is formed in the front end of the article placing groove, a sliding groove is formed in the rear end of the bottom plate close to the article placing groove, a second opening is formed in one end of the sliding groove close to the article placing groove and communicated with the article placing groove, the installation block is placed in the article placing groove, a protractor is arranged at the rear side of the article placing groove at the rear end of the bottom plate, a first through hole is formed in the front end of the installation block, a telescopic device is arranged in the first through hole, a sliding plate is arranged at the front end of the article placing groove and a limiting groove, a second through hole is formed in one end of the sliding plate close to the article placing groove, and a control device is arranged at one end of the through hole far away from the article placing groove, the inclined plate and the bottom plate are internally and uniformly distributed with electromagnets, a handle is mounted at the top end of the inclined plate, an electromagnet controller is mounted at the top end of the handle, and the electromagnet controller is electrically connected with the electromagnets.

In order to can better fixed mounting piece, the utility model discloses the improvement has, the telescoping device includes first reset spring, slide and connecting rod, set up first reset spring in the first through-hole, both ends installation slide around the first reset spring, a side-mounting connecting rod is kept away from each other to the slide, the connecting rod is kept away from slide one end and is located first trompil and second trompil, the connecting rod is kept away from slide one end and is set up the spacing groove.

In order to promote the removal of installation piece, the utility model discloses the improvement has, controlling means includes drum, button, second reset spring, gag lever post, spacing ring and cardboard, set up the drum in the through-hole, the drum is kept away from and is put thing groove one end installation button, set up second reset spring in the drum, set up the gag lever post on the spacing groove, the gag lever post is kept away from and is put thing groove one end and pass second reset spring and be located the button and be close to and put thing groove one end, the gag lever post surface is located second reset spring and keeps away from and put thing groove one side installation gag lever post, the gag lever post surface is located first trompil and second trompil interior installation cardboard.

In order to promote the gag lever post that can be more convenient, the utility model discloses the improvement has, the button material is the rubber material.

In order to prevent the gag lever post from stabbing the button, the utility model discloses the improvement has, it is close to putting thing groove one end installation iron sheet to lie in the button in the through-hole.

In order to make the handle follow the swash plate and lengthen, the utility model discloses the improvement has, handle left and right sides installation expansion plate, the handle left and right sides sets up the mounting groove, the expansion plate is close to one end each other and is connected with the mounting groove one end of being close to each other.

(III) advantageous effects

Compared with the prior art, the utility model provides a can adsorb drawing teaching aid on steel blackboard possesses following beneficial effect:

this drawing teaching aid that can adsorb on steel blackboard, through the cooperation of electro-magnet, handle and electromagnet controller, make it can freely remove as required according to the drawing, can improve drawing efficiency and quality greatly, convenience simple to use is fit for using widely, through controlling means, telescoping device, installation piece and put the cooperation in thing groove, can adjust the angle of set-square, makes it possess more usability, realizes that the mechanism is simple, facilitates the use.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a top view of the present invention;

fig. 3 is a side view of the bottom plate structure of the present invention.

In the figure: 1. a set square; 2. a sloping plate; 3. a base plate; 4. mounting blocks; 5. a storage groove; 6. a first opening; 7. a sliding groove; 8. an angle measuring ruler; 9. a first through hole; 10. a telescoping device; 11. a sliding plate; 12. A control device; 13. an electromagnet; 14. a handle; 15. an electromagnet controller; 16. a first return spring; 17. a slide plate; 18. a connecting rod; 19. a button; 20. a second return spring; 21. a limiting rod; 22. A limiting ring; 23. clamping a plate; 24. a cylinder; 25. iron sheets; 26. a retractable plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a drawing teaching aid capable of being adsorbed on a steel blackboard comprises a triangular plate 1, wherein the triangular plate 1 comprises a bottom plate 3 and two groups of inclined plates 2, the inclined plates 2 are hinged near one end, the bottom ends of the inclined plates 2 are provided with mounting blocks 4, the top ends of the mounting blocks are provided with object placing grooves 5 near the left and right sides, the front ends of the object placing grooves 5 are provided with first openings 6, the rear ends of the bottom plate 3 are positioned at the rear ends of the object placing grooves 5 and are provided with sliding grooves 7, one ends of the sliding grooves 7 near the object placing grooves 5 are provided with second openings communicated with the object placing grooves 5, the mounting blocks 4 are placed in the object placing grooves 5, the rear ends of the bottom plate 3 are positioned at the rear sides of the object placing grooves 5 and are provided with angle gauges 8, the front ends of the mounting blocks 4 are provided with first through holes 9, telescopic devices 10 are arranged in the first through holes 9, the front ends of the bottom plate 3 are positioned at the front ends of the object placing grooves 5 and are provided with limiting grooves 11, the sliding plate 11 is close to one end of the object placing groove 5 and is provided with a second through hole, one end of the through hole, which is far away from the object placing groove 5, is provided with a control device 12, electromagnets 13 are uniformly distributed in the inclined plate 2 and the bottom plate 3, the top end of the inclined plate 2 is provided with a handle 14, the top end of the handle 14 is provided with an electromagnet controller 15, and the electromagnet controller 15 is electrically connected with the electromagnets 13.

Telescoping device 10 includes first reset spring 16, slide 17 and connecting rod 18, set up first reset spring 16 in the first through-hole 9, both ends installation slide 17 around first reset spring 16, slide 17 keeps away from a side-mounting connecting rod 18 each other, connecting rod 18 keeps away from slide 17 one end and is located first trompil 6 and second trompil, connecting rod 18 keeps away from slide 17 one end and sets up the spacing groove, fixed mounting piece better.

Controlling means 12 includes drum 24, button 19, second reset spring 20, gag lever post 21, spacing ring 22 and cardboard 23, set up drum 24 in the through-hole, drum 24 keeps away from and puts 5 one end installation buttons 19 in the thing groove, set up second reset spring 20 in the drum 24, set up gag lever post 21 on the gag lever post, gag lever post 21 is kept away from and is passed second reset spring 20 and be located button 19 and be close to and put 5 one end in thing groove 5 one end to put 5 one end in thing groove 5, gag lever post 21 surface is located second reset spring 20 and keeps away from and puts 5 side-mounting gag lever post 22 in thing groove, gag lever post 21 surface is located first trompil 6 and second trompil in-mounting cardboard 23, can promote the removal of installation piece.

The button 19 material is the rubber material, promotion gag lever post that can be more convenient.

The through hole is internally provided with a button 19 close to one end of the object placing groove 5, and an iron sheet 25 is arranged at one end of the button to prevent the button from being punctured by the limiting rod.

The left and right sides of the handle 14 are provided with the telescopic plates 26, the left and right sides of the handle 14 are provided with mounting grooves, one end of each telescopic plate 26 close to each other is connected with one end of each mounting groove close to each other, and the handle can be elongated along with the inclined plate.

In conclusion, when the drawing teaching aid capable of being adsorbed on the steel blackboard is used, the electromagnet 13 is adsorbed on the steel blackboard by starting the electromagnet 13 controller, so that the drawing teaching aid can move freely according to drawing requirements, the drawing efficiency and quality can be greatly improved, when the drawing teaching aid is not used, the electromagnet 13 is powered off by using the electromagnet 13 controller, the electromagnet 13 loses magnetic force, and is convenient to take down, when triangles with different sizes need to be drawn, a user simultaneously presses the buttons 19 at the front end and the rear end of one side, so that the buttons 19 press the iron sheets 25 to push the limiting rods 21, the limiting rods 21 push the second return springs 20 to move towards the object placing grooves 5, the limiting rods 21 push the connecting rods 18 to push the first return springs 16 in the first through holes, then push the sliding plates 11, so that the sliding plates 11 drive the inclined plates 2 to move towards one side, and the required angles are determined through the angle rulers 8, the extendable plate 26 is extended to the side where the extendable plate 2 slides to prevent the handle 14 from being pulled apart, and then the other end is slid to determine the necessity of use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a drawing teaching aid that can adsorb on steel blackboard, includes set square (1), its characterized in that: the triangular plate (1) comprises a bottom plate (3) and two groups of inclined plates (2), wherein the inclined plates (2) are hinged at one ends close to each other, an installation block (4) is arranged at the bottom end of each inclined plate (2), article placing grooves (5) are arranged at the top ends close to the left side and the right side of each installation block, a first opening (6) is arranged at the front end of each article placing groove (5), a sliding groove (7) is arranged at the rear end of the bottom plate (3) and is located at the rear end of each article placing groove (5), a second opening is arranged at one end of each sliding groove (7) close to each article placing groove (5) and is communicated with each article placing groove (5), the installation blocks (4) are placed in the article placing grooves (5), angle measuring rulers (8) are arranged at the rear end of the bottom plate (3) and are arranged at the rear side of each article placing groove (5), first through holes (9) are arranged at the front ends of the installation blocks (4), telescopic devices (10) are arranged in the first through holes (9), and sliding plates (11) are arranged at the front ends of the article placing grooves (5) and in limiting grooves, the portable electric water heater is characterized in that a second through hole is formed in one end, close to the object placing groove (5), of the sliding plate (11), a control device (12) is installed at one end, far away from the object placing groove (5), of the through hole, electromagnets (13) are evenly distributed in the inclined plate (2) and the bottom plate (3), a handle (14) is installed at the top end of the inclined plate (2), an electromagnet controller (15) is installed at the top end of the handle (14), and the electromagnet controller (15) is electrically connected with the electromagnets (13).

2. The drawing teaching aid capable of being adsorbed on the steel blackboard according to claim 1, characterized in that: telescoping device (10) include first reset spring (16), slide (17) and connecting rod (18), set up first reset spring (16) in first through-hole (9), both ends installation slide (17) around first reset spring (16), slide (17) keep away from one side erection joint pole (18) each other, slide (17) one end is located first trompil (6) and second trompil in keeping away from connecting rod (18), slide (17) one end is kept away from in connecting rod (18) sets up the spacing groove.

3. The drawing teaching aid capable of being adsorbed on the steel blackboard according to claim 1, characterized in that: controlling means (12) include drum (24), button (19), second reset spring (20), gag lever post (21), spacing ring (22) and cardboard (23), set up drum (24) in the through-hole, drum (24) are kept away from and are put thing groove (5) one end installation button (19), set up second reset spring (20) in drum (24), set up gag lever post (21) on the spacing groove, gag lever post (21) are kept away from and are put thing groove (5) one end and pass second reset spring (20) and be located button (19) and be close to and put thing groove (5) one end, gag lever post (21) surface is located second reset spring (20) and is kept away from and put thing groove (5) one side installation spacing ring (22), gag lever post (21) surface is located first trompil (6) and second trompil interior installation cardboard (23).

4. A drawing teaching aid capable of being adsorbed on a steel blackboard according to claim 3, wherein: the button (19) is made of rubber.

5. A drawing teaching aid capable of being adsorbed on a steel blackboard according to claim 3, wherein: an iron sheet (25) is arranged at one end, close to the object placing groove (5), of the button (19) in the through hole.

6. The drawing teaching aid capable of being adsorbed on the steel blackboard according to claim 1, characterized in that: the handle (14) left and right sides installation expansion plate (26), the handle (14) left and right sides sets up the mounting groove, expansion plate (26) are close to one end each other and the mounting groove is close to one end each other and is connected.