CN213705021U

CN213705021U - Teaching aid

Info

Publication number: CN213705021U
Application number: CN202021789028.5U
Authority: CN
Inventors: 马猛
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-07-16
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a teaching aid, which comprises a fixed shell, a first supporting arm, a second supporting arm and a clamping mechanism; one end of each of the first support arm and the second support arm is embedded into the accommodating cavity of the fixing shell and connected through a hinge shaft, the clamping mechanism is arranged at the lower end of the first support arm and comprises a fixing clamp, a clamping seat and a fastening nut; one side of the fixing clamp is connected with the first supporting arm, one end of the clamping seat is connected with the fixing clamp, and the other end of the clamping seat is provided with a limiting cavity; fixture passes through the fixing clip to be connected with first supporting arm, plays the fixed action through fastening nut, and then makes things convenient for fixture's dismantlement, guarantees the change to teaching aid, places the painting brush through spacing chamber simultaneously, prevents that the painting brush from dropping and then realizing the effect of mapping.

Description

Teaching aid

Technical Field

The invention relates to the technical field of teaching, in particular to a teaching aid.

Background

Compasses are a tool used for drawing circles or arcs in mathematics and drawing, and are commonly used for drawing rulers and compasses. Current compasses include two supporting legs usually, are equipped with sharp portion on one of them supporting leg, and sharp portion is as the centre of a circle, can adorn the painting brush on another supporting leg usually, and two parts carry out angle adjustment by a hinged joint and through the hinge, but the compasses have the problem that the structure is single, the supporting leg damages easily and is difficult to change and the painting brush of installing on the supporting leg often drops in the teaching field, very big influence the teaching quality.

Disclosure of Invention

In order to overcome the problem that the chalk that has single structure and install on the supporting leg often drops among the present technique, the utility model provides a convenient to use and the difficult teaching aid that drops of painting brush.

In order to achieve the purpose, the teaching aid adopts the following technical scheme:

a teaching aid comprises a fixed shell, a first supporting arm, a second supporting arm and a clamping mechanism; one end of each of the first supporting arm and the second supporting arm is embedded into the accommodating cavity of the fixing shell and connected through a hinge shaft, the clamping mechanism is arranged at the lower end of the first supporting arm, and the clamping mechanism comprises a fixing clamp, a clamping seat and a fastening nut; one side of the fixing clamp is connected with the first supporting arm, one end of the clamping seat is connected with the fixing clamp, and the other end of the clamping seat is provided with a limiting cavity; fixture passes through the fixing clip to be connected with first supporting arm, plays the fixed action through fastening nut, and then makes things convenient for fixture's dismantlement, guarantees the change to teaching aid, places the painting brush through spacing chamber simultaneously, prevents that the painting brush from dropping and then realizing the effect of mapping.

As a further improvement of the technical scheme, a clamping mechanism is arranged inside the limiting cavity; clamping mechanism includes spring and stopper, wherein be provided with the spacing groove in the spacing intracavity, one side of spring set up in the spacing inslot, the opposite side of spring with the stopper is connected, and the painting brush contacts with the stopper, because the flexible of spring, makes the setting that the painting brush is more firm at spacing intracavity.

As a further improvement of the above technical solution, a sucker structure is arranged on the second support arm, and the sucker structure includes a sucker shaft and a sucker; the one end of sucking disc axle and the end connection of second support arm, the other end of sucking disc axle with the sucking disc is connected, the sucking disc is used for adsorbing on the surface of drafting board to improve teaching aid's steadiness.

As a further improvement of the above technical solution, the outer side of the first support arm or the second support arm is provided with scale marks; the scale marks realize the marking in drawing.

As a further improvement of the above technical solution, the inner side of the first support arm or the second support arm is a hollow cavity, and the graduated scale is disposed in the hollow cavity of the first support arm or the second support arm through the rotating shaft, so that the teaching aid can be used as a ruler to realize drawing and scribing when the clamping mechanism is not detached.

Compared with the prior art, the invention has the beneficial effects that: the utility model discloses it has simple structure, convenient to use, and fixture passes through the fixing clip and is connected with first supporting arm, plays the fixed action through fastening nut, and then makes things convenient for fixture's dismantlement, guarantees to teaching aid's change, places the painting brush through spacing chamber simultaneously, prevents that the painting brush from dropping and then realizing the effect of mapping.

Drawings

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

fig. 2 is a schematic structural view of the first support arm of the present invention;

fig. 3 is a schematic structural view of the clamping mechanism of the present invention;

fig. 4 shows the schematic view of the installation structure of the graduated scale of the present invention.

In the drawings: 1 is, 2 is the first support arm, 3 is the second support arm, 4 is the fixing clip, 5 is the grip slipper, 6 is the fastening nut, 7 is spacing chamber, 8 is spacing screw thread, 9 is the spring, 10 is the stopper, 11 is the sucking disc axle, 12 is the sucking disc, 13 is the scale mark, 14 is the scale.

Detailed Description

The present invention will be described in further detail with reference to specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Embodiment 1, as shown in fig. 1 and 2, an educational appliance includes a stationary case 1, a first support arm 2, a second support arm 3, and a holding mechanism; one end of each of the first support arm 2 and the second support arm 3 is embedded into the accommodating cavity of the fixed shell 1 and connected through a hinge shaft, the clamping mechanism is arranged at the lower end of the first support arm 2, and the clamping mechanism comprises a fixing clamp 4, a clamping seat 5 and a fastening nut 6; one side of the fixing clip 4 is connected with the first supporting arm 2, one end of the clamping seat 5 is connected with the fixing clip 4, the other end of the clamping seat 5 is provided with a limit cavity 7, wherein, a limit thread 8 is arranged on the circumference of one end of the clamping seat 5 close to the fixing clip 4, the fastening nut 6 is matched with the limit thread 8 and fastens the fixing clip 4 and the first supporting arm 2 for connection, the utility model has the advantages of simple structure and convenient use, when in use, the clamping mechanism is connected with the first supporting arm 2 through the fixing clip 4 and plays a role of fixing through the fastening nut 6, and then make things convenient for fixture's dismantlement, guarantee the change to teaching aid, place the painting brush through spacing chamber 7 simultaneously, the painting brush can be chalk, mark pen or other article that can carry out the mark, prevents that the painting brush from dropping and then realizing the effect of mapping.

In order to further fix the stability of clamping the painting brush in the limit cavity 7, referring to fig. 3, a clamping mechanism is arranged inside the limit cavity 7; clamping mechanism includes spring 9 and stopper 10, wherein be provided with the spacing groove (not shown in the drawing) in the spacing chamber 7, the spacing groove can set up the unilateral, also can set up in both sides, one side of spring 9 set up in the spacing inslot, the opposite side of spring 9 with stopper 10 is connected, and when using, the painting brush contacts with stopper 10, because the flexible of spring 9, makes the setting that the painting brush is more firm in spacing chamber 7.

The second supporting arm 3 is provided with a sucker structure, and the sucker structure comprises a sucker shaft 11 and a sucker 12; one end of the sucking disc shaft 11 is connected with the end of the second supporting arm 3, the other end of the sucking disc shaft 11 is connected with the sucking disc 12, when in use, the sucking disc 12 is used for being adsorbed on the surface of the drawing board, obviously, the sucking disc 12 can also be magnetic so as to be adsorbed on the magnetic drawing board.

Example 2, with continued reference to figures 1 and 2, an educational appliance comprising a stationary housing 1, a first support arm 2 and a second support arm 3; one end of each of the first support arm 2 and the second support arm 3 is embedded into the accommodating cavity of the fixed shell 1 and connected through a hinge shaft, and the outer side of each of the first support arm 2 and the second support arm 3 is provided with a scale mark 13; in this embodiment, when the clamping mechanism is removed, the teaching aid can be used as a ruler, and the drawing lines are drawn through the scale marks 13 on the first support arm 2 or the second support arm 3.

Embodiment 3, as shown in fig. 1 and 4, the teaching aid includes a fixing housing 1, a first supporting arm 2, a second supporting arm 3, and a scale 14, wherein one end of the first supporting arm 2 and one end of the second supporting arm 3 are respectively embedded into an accommodating cavity of the fixing housing 1 and are connected through a hinge shaft, the inner side of the first supporting arm 2 or the inner side of the second supporting arm 3 are hollow cavities, and the scale 14 is disposed in the hollow cavity of the first supporting arm 2 or the hollow cavity of the second supporting arm 3 through a rotating shaft, so that the teaching aid can be used as a ruler to realize drawing and scribing when a clamping mechanism is not detached.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A teaching aid is characterized by comprising a fixed shell (1), a first supporting arm (2), a second supporting arm (3) and a clamping mechanism; one end of each of the first supporting arm (2) and the second supporting arm (3) is embedded into the accommodating cavity of the fixed shell (1) and connected through a hinge shaft, the clamping mechanism is arranged at the lower end of the first supporting arm (2), and the clamping mechanism comprises a fixing clamp (4), a clamping seat (5) and a fastening nut (6); one side of fixing clip (4) with first supporting arm (2) are connected, grip slipper (5) one end with fixing clip (4) are connected, the other end of grip slipper (5) is provided with spacing chamber (7), wherein, grip slipper (5) are close to the one end border of fixing clip (4) is provided with spacing screw thread (8), fastening nut (6) with spacing screw thread (8) cooperation and fastening fixing clip (4) with the connection of first supporting arm (2).

2. An educational appliance as claimed in claim 1, wherein the limiting chamber (7) is internally provided with a clamping mechanism.

3. An educational appliance according to claim 2, wherein the clamping mechanism comprises a spring (9) and a stopper (10), wherein a limiting groove is provided in the limiting cavity (7), one side of the spring (9) is provided in the limiting groove, and the other side of the spring (9) is connected to the stopper (10).

4. An educational appliance as claimed in claim 1, wherein the second support arm (3) is provided with a suction cup structure.

5. An educational appliance as claimed in claim 4, wherein the suction cup structure comprises a suction cup shaft (11) and a suction cup (12); one end of the sucker shaft (11) is connected with the end part of the second supporting arm (3), and the other end of the sucker shaft (11) is connected with the sucker (12).

6. A teaching aid as claimed in claim 1, characterized in that the first (2) or second (3) support arm is provided with graduation marks (13) on its outer side.

7. A teaching aid as claimed in claim 1, wherein the inside of the first (2) or second (3) support arm is a hollow cavity in which a scale (14) is located.

8. A teaching aid as claimed in claim 7, wherein the scale (14) is arranged within the hollow cavity of the first (2) or second (3) support arm by means of a rotary shaft.