CN215041729U

CN215041729U - Mathematics classroom is with teaching aid of drawing convenient to adjust

Info

Publication number: CN215041729U
Application number: CN202121221159.8U
Authority: CN
Inventors: 林乐平
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-07
Anticipated expiration: 2031-06-02

Abstract

The utility model relates to a mathematics instrument technical field of drawing specifically is a mathematics classroom is with drawing teaching aid convenient to adjust, including slip leg, pen clip utensil, protection groove, gag lever post and connecting block, the surface sliding connection of slip leg has first leg, the surface swivelling joint of first leg has the connecting block, connecting block surface activity fixedly connected with links up the pole, first leg and second leg are through linking up the inside of pole swing joint at the connecting block, the surface swing joint of connecting block has the second leg, second leg swing joint has first screw, the surface swing joint of first screw has the third leg, the surface swing joint of slip leg has the second screw, the inside fixedly connected with cover storehouse of slip leg. The utility model relates to a mathematics classroom is with teaching aid of drawing convenient to adjust, even length weak point also can draw great circle simultaneously convenient folding accomodating.

Description

Mathematics classroom is with teaching aid of drawing convenient to adjust

Technical Field

The utility model relates to a mathematics instrument technical field of drawing specifically is a mathematics classroom is with teaching aid of drawing convenient to adjust.

Background

In mathematics and drawing, compasses are tools for drawing circles or chords, the mathematical teaching is rigorous, and the compasses cannot be separated when circles are drawn in a mathematical classroom or other convenience.

The present student certainly is one compasses of staff, but the student is troublesome a bit when carrying the compasses, because it can't fold, does not have the way and directly puts into the stationery box, is difficult for categorizing, and the longer compasses draw the circle of drawing just can be big more, and its length has decided it can draw many big circles, but is difficult to carry more long more, therefore needs to design the mathematics classroom of being convenient for adjust and solves above-mentioned problem with drawing teaching aid.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mathematics classroom is with teaching aid of drawing convenient to adjust to solve the unable folding of proposing in the above-mentioned background art, in no way directly putting into the stationery box, be difficult for categorizing, the circle that longer compasses were painted out just can be big more, its length has decided that it can paint out big more circle, but longer but difficult carrying scheduling problem more.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a mathematics classroom is with drawing teaching aid convenient to adjust, includes slip leg, double-layered pen utensil, protection groove and gag lever post, the surface sliding connection of slip leg has first leg, the surface swivelling joint of first leg has the connecting block, connecting block surface activity fixedly connected with links up the pole, first leg and second leg are through linking pole swing joint in the inside of connecting block, the surface swing joint of connecting block has the second leg, second leg swing joint has first screw, the surface swing joint of first screw has the third leg, the surface swing joint of slip leg has the second screw, the inside fixedly connected with cover storehouse of slip leg, the inside fixedly connected with spring in cover storehouse, protection groove passes through connecting rod swing joint with the slip leg.

Preferably, the upper surface of the connecting block is movably connected with a fixing block, and the fixing block is connected to the outer surface of the connecting rod.

Preferably, the outer surface of the third leg is fixedly connected with a pen clamping tool, and the pen clamping tool is in a C shape.

Preferably, the outer surface of the pen clamping tool is movably connected with a third screw.

Preferably, the outer surface of the sliding leg is movably connected with a protection groove, and the protection groove is movably connected with the sliding leg through a connecting rod.

Preferably, the stop lever shape is the cross, the one end and the gag lever post butt of spring, and the other end of spring and the inner wall butt in cover storehouse.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a mathematics classroom is with drawing teaching aid is convenient folding accomodate convenient to adjust, even length weak point also can draw great circle simultaneously.

(1) Through having sliding leg internal surface to connect with the cover storehouse, the internal surface in cover storehouse is connected with the spring again, the one end butt cover storehouse of spring, other end butt gag lever post, the inside at the spring is connected to the gag lever post, the gag lever post can stretch out and draw back in the inside in cover storehouse, the inside of first leg is provided with the spout, the one end butt spring of gag lever post, the other end and the inside spout sliding connection of first leg, the slip leg can be in the inside of first leg like this, play flexible effect, can pull out first leg from the inside of slip leg when the great circle of needs, not push in the time spent.

(2) The outer surface of the sliding leg is connected with a second screw, the sliding leg can rotate by taking the second screw as a rotating shaft, and finally the inside of the first leg is received.

Drawings

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

FIG. 2 is a front view of the folding structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1 according to the present invention;

fig. 4 is a schematic front sectional view of the protection groove of fig. 1 according to the present invention.

In the figure: 1. a sliding leg; 2. a first leg; 3. connecting blocks; 4. a fixed block; 5. a connecting rod; 6. a second leg; 7. a first screw; 8. a third leg; 9. a second screw; 10. a pen holder; 11. a third screw; 12. a protective groove; 13. sleeving a bin; 14. a spring; 15. a limiting rod; 16. a connecting rod.

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. 1-4, the present invention provides an embodiment: a drawing teaching aid for mathematics classroom convenient to adjust, which comprises a sliding leg 1 and a pen holder 10, protection groove 12 and gag lever post 15, the surface sliding connection of slip leg 1 has first leg 2, the surface swivelling joint of first leg 2 has connecting block 3 to be convenient for connect fixedly, the surface swing joint of connecting block 3 links up pole 5 to be convenient for link up, first leg 2 and second leg 6 are through linking up pole 5 swing joint in the inside of connecting block 3, the surface swing joint of connecting block 3 has second leg 6, the rotatory drawing of being convenient for, the surface swing joint of second leg 6 swing joint of first screw 7 has third leg 8, be convenient for partially fold the compasses, the surface swing joint of slip leg 1 has second screw 9, the inside fixedly connected with cover storehouse 13 of slip leg 1, the inside fixedly connected with spring 14 of cover storehouse 13, protection groove 12 passes through connecting rod 16 swing joint with slip leg 1.

Furthermore, the upper surface of the connecting block 3 is movably connected with a fixing block 4, the fixing block 4 is connected to the outer surface of the connecting rod 5, so that a user can hold the connecting block to rotate conveniently, and meanwhile, the fixing block 4 also plays a role in regulating the distance between the second leg 6 and the first leg 2.

Furthermore, the outer surface of the third leg 8 is fixedly connected with a pen holder 10, and the pen holder 10 is in a C shape, so that the drawing pen can be flexibly replaced, and the drawing pen can be directly placed in the pen holder during replacement.

Furthermore, the outer surface of the pen holder 10 is movably connected with a third screw 11, so that the pen can be conveniently fixed and prevented from falling.

Furthermore, the outer surface of the sliding leg 1 is movably connected with a protection groove 12, the protection groove 12 is movably connected with the sliding leg 1 through a connecting rod 16, the protection groove 12 can rotate by taking the connecting rod 16 as an axis, and when the sliding leg is not used, the protection groove 12 can be rotated to the bottom of the sliding leg 1, so that the bottom of the sliding leg 1 is protected.

Further, the gag lever post 15 shape is the cross, and spring 14's one end and gag lever post 15 butt, and spring 14's the other end and the inner wall butt of cover storehouse 13 make things convenient for slip leg 1 to slide in the inside of first leg 2 to play the length of extension compasses, conveniently draw bigger circle.

The working principle is as follows: when the mathematics classroom drawing teaching aid is needed to be used, the sliding leg 1 is rotated out of the inside of the first leg 2 through the second screw 9, then the third leg 8 is rotated out of the inside of the second leg 6 through the first screw 7, the bottom of the sliding leg 1 is leaked out through outward rotation of the protection groove 12, the third screw 11 is screwed out of the inside of the pen clamp 10, a painting brush is put into the inside of the pen clamp 10 from top to bottom, the third screw 11 is screwed inwards to fix the painting brush, the fixing block 4 is rotated downwards, the sliding leg 1 is fixed on a circle center, the third leg 8 is adjusted to a proper distance, the fixing block 4 is lifted upwards to fix the distance between the second leg 6 and the first leg 2, the fixing block 4 is held to draw a circle, when the distance is insufficient, the sliding leg 1 can be pulled downwards, the sliding leg 1 is pushed upwards after the teaching aid is used, when the teaching aid is not used, the sliding leg 1 is retracted into the inside of the first leg 2, the third leg 8 is only required to be put into the second leg 6, so that the drawing is very convenient, and the foldable portable drawing device is convenient to carry.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented 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.

Claims

1. The utility model provides a mathematics classroom is with drawing teaching aid convenient to adjust, includes slip leg (1), double-layered pen utensil (10), guard slot (12) and gag lever post (15), its characterized in that: the outer surface of the sliding leg (1) is connected with a first leg (2) in a sliding way, the outer surface of the first leg (2) is connected with a connecting block (3) in a rotating way, the outer surface of the connecting block (3) is movably and fixedly connected with a joint rod (5), the first leg (2) and the second leg (6) are movably connected inside the connecting block (3) through the joint rod (5), the outer surface of the connecting block (3) is movably connected with a second leg (6), the second leg (6) is movably connected with a first screw (7), the outer surface of the first screw (7) is movably connected with a third leg (8), the outer surface of the sliding leg (1) is movably connected with a second screw (9), a sleeve bin (13) is fixedly connected inside the sliding leg (1), a spring (14) is fixedly connected inside the sleeve bin (13), the protective groove (12) is movably connected with the sliding leg (1) through a connecting rod (16).

2. The mathematics classroom of claim 1 is with drawing teaching aid convenient to adjust which characterized in that: the upper surface swing joint of connecting block (3) has fixed block (4), the surface at linking pole (5) is connected in fixed block (4).

3. The mathematics classroom of claim 1 is with drawing teaching aid convenient to adjust which characterized in that: the outer surface of the third leg (8) is fixedly connected with a pen clamping tool (10), and the pen clamping tool (10) is C-shaped.

4. The mathematics classroom of claim 1 is with drawing teaching aid convenient to adjust which characterized in that: the outer surface of the pen clamping tool (10) is movably connected with a third screw (11).

5. The mathematics classroom of claim 1 is with drawing teaching aid convenient to adjust which characterized in that: the outer surface of the sliding leg (1) is movably connected with a protection groove (12), and the protection groove (12) is movably connected with the sliding leg (1) through a connecting rod (16).

6. The mathematics classroom of claim 1 is with drawing teaching aid convenient to adjust which characterized in that: the shape of the limiting rod (15) is cross-shaped, one end of the spring (14) is connected with the limiting rod (15) in an abutting mode, and the other end of the spring (14) is connected with the inner wall of the sleeve bin (13) in an abutting mode.