CN217347298U

CN217347298U - Curve drawing device for mathematics

Info

Publication number: CN217347298U
Application number: CN202221007981.9U
Authority: CN
Inventors: 孙强
Original assignee: Jingyuan Vocational Secondary School
Current assignee: Jingyuan Vocational Secondary School
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-09-02
Anticipated expiration: 2032-04-27

Abstract

The utility model discloses a curve drawing device for mathematics relates to the mathematical education field, it has first ruler to articulate on the fixing base, and the first end of first ruler articulates there is the first end of second ruler, the second end of second ruler and the first end fixed connection of first telescopic link, the first end that is connected with first connecting rod can be dismantled to the second end of first telescopic link, the second end of first ruler and the first end fixed connection of second telescopic link, the first end that is connected with the second connecting rod can be dismantled to the second end of second telescopic link. The utility model discloses the location of coordinate is accurate, and the curve of drawing is more vivid, also can draw straight line and right angle simultaneously and use the back of using up, can dismantle folding putting into supporting receiver, easy operation, convenient to carry, it is extensive to use in the mathematical education field.

Description

Curve drawing device for mathematics

Technical Field

The utility model relates to a mathematical education field, concretely relates to curve drawing device for mathematics.

Background

At present, at advanced mathematics teaching in-process, the teacher can use mathematical curve drawing device often to need draw on the blackboard, make the student can obtain audio-visual impact, deepen student's memory, improve the teaching effect, however, current teaching tool is set-square, ruler and compasses mostly, relatively more troublesome and not enough image when drawing the curve, and the location of coordinate is accurate inadequately simultaneously, thereby influences teaching efficiency.

In view of this, the present invention is especially provided.

Disclosure of Invention

The utility model provides an above-mentioned problem, provide a curve drawing device for mathematics, solved when drawing the curve than more troublesome and not enough image, the location of coordinate is accurate problem inadequately simultaneously.

The utility model discloses a technical scheme do: a curve drawing device for mathematics is characterized by comprising a first ruler, a second ruler, a first telescopic rod, a sliding block, a first connecting rod, a second connecting rod, a chalk seat and a second telescopic rod;

a first straight ruler is hinged to the fixed seat, a first end of the first straight ruler is hinged to a first end of a second straight ruler, a second end of the second straight ruler is fixedly connected with a first end of a first telescopic rod, a second end of the first telescopic rod is detachably connected with a first end of a first connecting rod, a second end of the first straight ruler is fixedly connected with a first end of a second telescopic rod, and a second end of the second telescopic rod is detachably connected with a first end of a second connecting rod;

a fixed block is arranged on the second ruler and detachably connected with the fixed seat;

the second end of the first connecting rod penetrates through the second end of the second connecting rod, and the first connecting rod and the second connecting rod are connected in a sliding manner;

but all be equipped with sliding connection's slider on first connecting rod and the second connecting rod, be equipped with the chalk seat on the slider.

Furthermore, the first ruler and the second ruler are hinged to the fixed base through the rotating shaft.

Furthermore, a first sliding groove is formed in each of the first connecting rod and the second connecting rod, and the sliding block is connected with the first connecting rod and the second connecting rod in a sliding mode through the first sliding groove.

Furthermore, a second sliding groove is formed in the second connecting rod, and the first connecting rod is connected in the second sliding groove in a sliding mode.

Furthermore, a scale pointer is arranged on the chalk seat.

Furthermore, two suckers are arranged below the first ruler and the second ruler.

Furthermore, the first ends of the second connecting rod and the first connecting rod are both provided with grooves, one side of each groove is provided with a through hole, the second ends of the second telescopic rod and the first telescopic rod are both provided with screw holes, the second connecting rod and the second telescopic rod and the first telescopic rod are both detachably connected through screw rods, and the screw rods penetrate through the through holes and are in threaded connection with the screw holes.

Further, the length of the first straightedge is less than the length from the second end of the first telescopic rod to the first end of the second straightedge when the first telescopic rod is retracted.

The utility model has the advantages that:

the utility model discloses a first ruler and the first end of second ruler are together articulated, and the second end connects first telescopic link, second telescopic link respectively, and two telescopic links are connected first connecting rod, second connecting rod respectively again to enclose into the rectangle structure, through the removal of telescopic link, drive connecting rod position and remove, remove the slider position again, the chalk can draw the curve on the blackboard through the chalk seat on the slider, also can draw straight line and right angle simultaneously, the utility model discloses the location of coordinate is accurate, and the curve of drawing is more vivid to after making use up, can dismantle the folding supporting receiver of putting into, easy operation, convenient to carry uses extensively in mathematical education field.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

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

fig. 2 is a bottom view of the second link according to the present invention;

fig. 3 is a schematic view of the connection between the first ruler and the first telescopic rod of the present invention;

fig. 4 is a schematic view of a first chute position of the present invention;

fig. 5 is a schematic view of the position of the suction cup of the present invention;

fig. 6 is a top view of a second link of the present invention;

fig. 7 is a schematic view of the working state of the fixing block of the present invention;

fig. 8 is a top view of the rotating shaft of the present invention;

fig. 9 is a side view of the groove of the present invention;

fig. 10 is a top view of the groove of the present invention;

fig. 11 is a schematic view of the installation of the first straight rule of the present invention.

Reference numerals:

1 is a first ruler; 2 is a rotating shaft; 3 is a second ruler; 4 is a first telescopic rod; 5 is a slide block; 6 is a first connecting rod; 7 is a second connecting rod; 8 is a chalk holder; 9 is a first chute; 10 is a second chute; 11 is a second telescopic rod; 12 is a scale pointer; 13 is a sucker; 14 is a fixed block; 15 is a fixed seat; 16 is a screw hole; 17 is a screw rod; 18 is a through hole; 19 is a groove;

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1 to 11, a curve drawing device for mathematics includes a first ruler 1, a second ruler 3, a first telescopic rod 4, a sliding block 5, a first connecting rod 6, a second connecting rod 7, a chalk holder 8, a second telescopic rod 11, a fixing block 14, and a fixing base 15;

a first ruler 1 is hinged on a fixing seat 15, a first end of the first ruler 1 is hinged with a first end of a second ruler 3, the first ruler 1 and the second ruler 3 are hinged on the fixing seat 15 through a rotating shaft 2, the second ruler 3 can rotate to a required position around the fixing seat 15 through the rotating shaft 2, a second end of the second ruler 3 is fixedly connected with a first end of a first telescopic rod 4, a second end of the first telescopic rod 4 is detachably connected with a first end of a first connecting rod 6, the second end of the first telescopic rod 4 can drive the first connecting rod 6 to move up and down, and the first connecting rod 6 can also be detached and taken away; the second end of first ruler 1 and the first end fixed connection of second telescopic link 11, the first end that is connected with second connecting rod 7 can be dismantled to the second end of second telescopic link 11, and second telescopic link 11 can promote to move about second connecting rod 7, also can dismantle second connecting rod 7 and take away, as figure 1.

A fixed block 14 is arranged on the second ruler 3, the fixed block 14 is detachably connected with a fixed seat 15, the second end of the first connecting rod 6 penetrates through the second end of the second connecting rod 7, the first connecting rod 6 is slidably connected with the second connecting rod 7, and the first connecting rod 6 can slide in the second connecting rod 7; but all install sliding connection's slider 5 on first connecting rod 6 and the second connecting rod 7, and first spout 9 has all been seted up in first connecting rod 6 and the second connecting rod 7, slider 5 respectively with first connecting rod 6 through first spout 9, second connecting rod 7 sliding connection, slider 5 can slide in first spout 9 on first connecting rod 6 and the second connecting rod 7, install chalk seat 8 on the slider 5, chalk seat 8 can be adjusted to required position along with slider 5's removal, as figure 6.

Second spout 10 has been seted up on second connecting rod 7, first connecting rod 6 sliding connection in second spout 10, first connecting rod 6 can come and go in second spout 10 on second connecting rod 7 and slide, install scale pointer 12 on the chalk seat 8, directional position through scale pointer 12, conveniently confirm the position of chalk on the chalk seat 8, two sucking discs 13 are all installed to first ruler 1 and second ruler 3 below, sucking disc 13 can adsorb on the blackboard, be used for fixed blackboard and first ruler 1 simultaneously, second ruler 3, as shown in fig. 5.

Recess 19 has all been seted up to the first end of second connecting rod 7 and first connecting rod 6, through-hole 18 has been seted up to recess 19 one side, through-hole 18 runs through one side of recess 19, screw 16 has all been seted up to the second end of second telescopic link 11 and first telescopic link 4, between second connecting rod 7 and the second telescopic link 11, all can dismantle the connection through screw rod 7 between first telescopic link 4 and the first connecting rod 6, and screw rod 17 runs through-hole 18 and the 16 spiro unions of screw, first telescopic link 4, the second end of second telescopic link 11 blocks respectively in first connecting rod 6, in the recess 19 on the first end of second connecting rod 7, then screw rod 7 passes through-hole 18 and the 16 spiro unions of screw on second telescopic link 11 and the first telescopic link 4, first ruler 1 after the dismantlement, second ruler 3, first connecting rod 6, second connecting rod 7 all is placed in the receiver, as figure 9.

The utility model discloses a working process:

the storage box is opened, the first ruler 1, the second ruler 3, the first connecting rod 6 and the second connecting rod 7 are taken out, the first ruler 1 is placed in a horizontal position, the second ruler 3 is rotated to a vertical position around the fixing seat 15, the fixing block 14 on the second ruler 3 is just vertical to the fixing seat, the second end of the first connecting rod 6 is placed in the second sliding groove 10 of the second end of the second connecting rod 7, then the second ends of the first telescopic rod 4 and the second telescopic rod 11 are respectively clamped in the grooves 19 of the first end of the first connecting rod 6 and the first end of the second connecting rod 7, the screw 7 penetrates through the through hole 18 and is in threaded connection with the second telescopic rod 11 and the screw hole 16 on the first telescopic rod 4, finally the suction cups 13 on the back sides of the first ruler 1 and the second ruler 3 are adsorbed on a blackboard, chalk is placed in the chalk seat 8 on the sliding block 5, the first telescopic rod 4 and the second telescopic rod 11 are moved to drive the position change of the first connecting rod 6 and the second connecting rod 7, meanwhile, the slide block 5 is moved, so that accurate coordinate points can be drawn, curves can be drawn, and straight lines and right angles can be drawn;

when using up at that time, take off sucking disc 13 from the blackboard, not hard up screw rod 7, take out screw rod 7 from through-hole 18, take out the second end of first telescopic link 4 and second telescopic link 11 in the recess 19 on the first end with first connecting rod 6 and second connecting rod 7, first telescopic link 4 and second telescopic link 11 and first connecting rod 6 and second connecting rod 7 separation this moment, take away first connecting rod 6 and second connecting rod 7, take out first connecting rod 6 again from taking out in the second recess 10 in the second connecting rod 7, put into the receiver, also can rotate second ruler 3 around fixing base 15 to with first ruler 1 coincidence position, first ruler 1 and second ruler 3 are folding this moment, can regard as first ruler 1 and second ruler 3 to use as the ruler, put into the receiver after that will fold again, accomplish the drawing.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A curve drawing device for mathematics is characterized by comprising a first ruler (1), a second ruler (3), a first telescopic rod (4), a sliding block (5), a first connecting rod (6), a second connecting rod (7), a chalk seat (8), a second telescopic rod (11), a fixed block (14) and a fixed seat (15);

a first ruler (1) is hinged to the fixing seat (15), a first end of the first ruler (1) is hinged to a first end of a second ruler (3), a second end of the second ruler (3) is fixedly connected with a first end of a first telescopic rod (4), a second end of the first telescopic rod (4) is detachably connected with a first end of a first connecting rod (6), a second end of the first ruler (1) is fixedly connected with a first end of a second telescopic rod (11), and a second end of the second telescopic rod (11) is detachably connected with a first end of a second connecting rod (7);

a fixing block (14) is arranged on the second ruler (3), and the fixing block (14) is detachably connected with the fixing seat (15);

the second end of the first connecting rod (6) penetrates through the second end of the second connecting rod (7), and the first connecting rod (6) and the second connecting rod (7) are in slidable connection;

but all be equipped with sliding connection's slider (5) on first connecting rod (6) and second connecting rod (7), be equipped with chalk seat (8) on slider (5).

2. A curve plotting device for mathematics as claimed in claim 1, characterised in that the first (1) and second (3) straightedges are hinged on a fixed base (15) through a rotation axis (2).

3. A curve plotting device for mathematics according to claim 1, characterised in that the first connecting rod (6) and the second connecting rod (7) are both internally provided with a first sliding slot (9), and the sliding block (5) is slidably connected with the first connecting rod (6) and the second connecting rod (7) through the first sliding slot (9).

4. Curve-drawing device for mathematics according to claim 1, characterised in that said second link (7) is provided with a second runner (10), said first link (6) being slidingly coupled in said second runner (10).

5. Curve-drawing device for mathematics, in accordance with claim 1, characterised in that said chalk holder (8) is provided with a graduated pointer (12).

6. A curve plotting device for mathematics as claimed in claim 1 characterised in that two suction cups (13) are placed below each of the first (1) and second (3) straightedges.

7. The curve plotting device for mathematics as in claim 1, characterized in that the first ends of the second connecting rod (7) and the first connecting rod (6) are both provided with a groove (19), one side of the groove (19) is provided with a through hole (18), the second ends of the second telescopic rod (11) and the first telescopic rod (4) are both provided with a screw hole (16), the second connecting rod (7) and the second telescopic rod (11), the first telescopic rod (4) and the first connecting rod (6) are both detachably connected through a screw rod (17), and the screw rod (17) passes through the through hole (18) and is screwed with the screw hole (16).

8. A curve plotting device for mathematics as claimed in claim 1, characterised in that the length dimension of the first straight edge (1) is smaller than the length dimension from the second end of the first telescopic rod (4) to the first end of the second straight edge (3) when it is retracted.