CN207359938U - A kind of drawing tools for mathematics class - Google Patents

Abstract

The utility model discloses a kind of drawing tools for mathematics class, including supporting round bar, clamping rings is set with the support round bar center, the clamping rings upper surface is fixedly connected with angle display table, one group of No.1 annular groove is processed on the support round bar side surface and above clamping rings, it is all provided with rotating annulus in each No.1 annular groove, it is raised that the support round bar side surface is fixedly connected with the multigroup limitation mutually overlapped with one group of rotation annulus side surface, suit swings stretch rod on each rotation annulus side surface, equal hinge connection spring clamp hand on each swing stretch rod end face, the support round bar side surface and one group of bar shaped slot of processing below clamping rings, it is embedded in each bar shaped slot and horizontally rotates round bar.The beneficial effects of the utility model are that one kind use is more convenient, and measurement angle is more convenient, easy to draw, portable device.

Description

A kind of drawing tools for mathematics class

Technical field

Teaching equipment field is the utility model is related to, particularly a kind of drawing tools for mathematics class.

Background technology

Teaching aid be exactly teacher when giving lessons, for the auxiliary tool drawn, it will usually there is set square or straight Ruler etc.

For mathematics class, the calculating of figure is that comparison is more, and traditional teaching aid is more dispersed, and ruler cannot be drawn Circle, is usually all effectively to limit, if it is desired to straight line or circular simultaneous graphic system, it is necessary to carry at least two teaching aids, than Compared with trouble, if it is desired to the angle of figure has been finished in measurement, it is also necessary to a kind of teaching aid, it is more various, it has not been convenient to take Band, the teaching aid of traditional measurement angle, observing effect are bad, it has not been convenient to it be aligned, measurement is also inconvenient, therefore in order to solve these Problem, the teaching aid that angle can be convenient for measuring again by designing a kind of portable multiple functions is necessary.

Utility model content

The purpose of this utility model is to solve the above-mentioned problems, to devise a kind of drawing tools for mathematics class.

Realize that above-mentioned purpose the technical solution of the utility model is, a kind of drawing tools for mathematics class, including support Round bar, described support are set with clamping rings at round bar center, the clamping rings upper surface is fixedly connected with angle display table, described Support on round bar side surface and one group of No.1 annular groove is processed above clamping rings, in each No.1 annular groove It is all provided with rotating annulus, the support round bar side surface is fixedly connected with the multigroup limitation mutually overlapped with one group of rotation annulus outer surface Protrusion, each described rotate are embedded in swing stretch rod, are cut with scissors on each swing stretch rod end face on annulus side surface Chain link spring clamp hand, the support round bar side surface and one group of bar shaped slot of processing below clamping rings, it is each described It is embedded in bar shaped slot and horizontally rotates round bar, it is each described to horizontally rotate on round bar that suit swings stretching stripe board, each Described swing is fixedly connected with horizontal fixed link on stretching stripe board side surface, and vacuum is set with each horizontal fixed link Sucker, the support round bar upper surface are fixedly connected with toroidal shell, and the toroidal shell upper surface is fixedly connected with handle.

The raised quantity of multigroup limitation is 3-5 groups, is often corresponded with respect to the position that protrusion is limited described in one group, more The group limitation is raised to be angularly located on one group of circumference.

Spongy layer is set with the handle.

Limited described in one of which between protrusion and toroidal shell lower surface and be all provided with supported rod erecting.

The diameter of the clamping rings is more than the diameter of toroidal shell, and the longitudinal section of the handle is n shapes.

The position of bar shaped slot corresponds described in one group, and the support round bar lower face is fixedly connected with trapezoidal round platform.

The drawing tools for mathematics class made using the technical solution of the utility model, one kind use is more convenient, Measurement angle is more convenient, easy to draw, portable device.

Brief description of the drawings

Fig. 1 is a kind of structure diagram of drawing tools for mathematics class described in the utility model；

Fig. 2 is a kind of top view of drawing tools for mathematics class described in the utility model；

Fig. 3 is that round bar is supported in a kind of drawing tools for mathematics class described in the utility model, horizontally rotates round bar, pendulum Dynamic stretching stripe board, horizontal fixed link, vacuum cup and the matched side view of trapezoidal round platform；

Fig. 4 is that swing stretch rod and spring clip palmistry are matched somebody with somebody in a kind of drawing tools for mathematics class described in the utility model The partial enlarged view of conjunction；

In figure, 1, support round bar；2nd, clamping rings；3rd, angle shows table；4th, annulus is rotated；5th, limitation is raised；6th, swing Stretch rod；7th, spring clamp hand；8th, round bar is horizontally rotated；9th, stretching stripe board is swung；10th, horizontal fixed link；11st, vacuum cup； 12nd, toroidal shell；13rd, handle；14th, spongy layer；15th, supported rod erecting；16th, trapezoidal round platform.

Embodiment

The utility model is specifically described below in conjunction with the accompanying drawings, as shown in Figs 1-4, a kind of picture for mathematics class Instrument, including support round bar 1, described support are set with clamping rings 2 at 1 center of round bar, 2 upper surface of clamping rings, which is fixed, to be connected Angle display table 3 is connect, it is described to support on 1 side surface of round bar and process one group of No.1 annular groove positioned at the top of clamping rings 2, often It is all provided with rotating annulus 4 in a No.1 annular groove, 1 side surface of the support round bar is fixedly connected and one group of rotation annulus 4 Multigroup limitation protrusion 5 that outer surface mutually overlaps, each described rotate are embedded in swing stretch rod 6 on 4 side surface of annulus, each Equal hinge connection spring clamp hand 7, described to support 1 side surface of round bar and be located at clamping rings 2 on swing 6 end face of stretch rod Lower section processes one group of bar shaped slot, is embedded in each bar shaped slot and horizontally rotates round bar 8, each described to horizontally rotate circle Suit swings stretching stripe board 9 on bar 8, and each described swing is fixedly connected with horizontal fixation on 9 side surface of stretching stripe board Bar 10, is each set with vacuum cup 11 in the horizontal fixed link 10,1 upper surface of the support round bar is fixedly connected with toroidal shell 12,12 upper surface of toroidal shell is fixedly connected with handle 13；The quantity of multigroup limitation protrusion 5 is 3-5 groups, often with respect to one group The position of the limitation protrusion 5 corresponds, and multigroup limitation protrusion 5 is angularly on one group of circumference；The handle 13 Upper suit spongy layer 14；Limited described in one of which between protrusion 5 and 12 lower surface of toroidal shell and be all provided with supported rod erecting 15；It is described solid The diameter for determining annulus 2 is more than the diameter of toroidal shell 12, and the longitudinal section of the handle 13 is n shapes；The position of bar shaped slot described in one group Put and correspond, 1 lower face of the support round bar is fixedly connected with trapezoidal round platform 16.

In the present embodiment, clamping rings 2 is fixedly set on support round bar 1, angle display table 3 is fixedly connected In 2 upper surface of clamping rings, by rotating the rotation annulus 4 on support round bar 1 so that on each rotation annulus 4 Swing stretch rod 6 overlapped with two arms of angle of the figure drawn on blackboard, easy to show the angle of angle, wherein swing stretching Easy to stretch certain length, the spring clamp hand 7 on each swing 6 end face of stretch rod passes through bar 6 easy to gripping chalk The corresponding annulus 4 that rotates of rotation causes corresponding spring several first 7 with chalk in the corresponding effect for swinging stretch rod 6 Under rotate a circle, the drafting to being justified on blackboard, by adjusting it is each swing stretch rod 6 length, be conveniently adjusted and paint The diameter of rounding, if it is desired to draw straight line, horizontally rotate circle in corresponding by the way that one group of swing is stretched stripe board 9 Become horizontality under the action of bar 8, can be used for drawing straight line, can by adjusting each length for swinging stretching stripe board 9 To draw different length, positioned at each horizontal fixed link 10 swung on 9 side surface of stretching stripe board and positioned at each level Vacuum cup 11 on 10 end face of fixed link is when without using one group of swing tensile bars plate 9, one group of vacuum cup 11 Attract each other, this device is shunk, multigroup limitation protrusion 5 on 1 side surface of support round bar is used for limiting rotation circle Ring 4, toroidal shell 12 is fixedly connected on 1 upper surface of support round bar, the handle 13 positioned at 12 upper surface of toroidal shell is easy to hold, Spongy layer 14 on handle 13 easy to improve the comfort level held, in part limitation protrusion 5 with toroidal shell 12 it Between supported rod erecting 15 be supported and fix easy to cabinet toroidal shell 12, positioned at support round bar 1 lower surface trapezoidal round platform 16 just When angle is being measured, it will be overlapped at the center of trapezoidal round platform 16 with the center measured, easy to measure.

Above-mentioned technical proposal only embodies the optimal technical scheme of technical solutions of the utility model, the technology of the art Personnel embody some variations that some of which part may be made the principle of the utility model, belong to the utility model Protection domain within.

Claims (6)

1. a kind of drawing tools for mathematics class, including support round bar (1), it is characterised in that described support round bar (1) center Place's suit clamping rings (2), clamping rings (2) upper surface are fixedly connected with angle display table (3), the support round bar (1) One group of No.1 annular groove is processed on side surface and above clamping rings (2), is all provided with each No.1 annular groove Rotate annulus (4), it is described support round bar (1) side surface be fixedly connected mutually overlapped with one group of rotation annulus (4) outer surface it is more Group limitation is raised (5), is each embedded on described rotation annulus (4) side surface and swings stretch rod (6), each swing stretching Equal hinge connection spring clamp hand (7) on bar (6) end face, it is described to support round bar (1) side surface and below clamping rings (2) One group of bar shaped slot is processed, is embedded in each bar shaped slot and horizontally rotates round bar (8), it is each described to horizontally rotate round bar (8) suit swings stretching stripe board (9) on, and each described swing is fixedly connected with level on stretching stripe board (9) side surface Fixed link (10), is each set with vacuum cup (11) on the horizontal fixed link (10), described support round bar (1) upper surface is solid Surely toroidal shell (12) is connected, toroidal shell (12) upper surface is fixedly connected with handle (13).

2. a kind of drawing tools for mathematics class according to claim 1, it is characterised in that multigroup limitation is raised (5) quantity is 3-5 groups, is often corresponded with respect to the position that raised (5) are limited described in one group, and multigroup limitation is raised (5) Angularly on one group of circumference.

3. a kind of drawing tools for mathematics class according to claim 1, it is characterised in that covered on the handle (13) Fill spongy layer (14).

A kind of 4. drawing tools for mathematics class according to claim 1, it is characterised in that limitation described in one of which Supported rod erecting (15) is all provided between raised (5) and toroidal shell (12) lower surface.

A kind of 5. drawing tools for mathematics class according to claim 1, it is characterised in that the clamping rings (2) Diameter be more than toroidal shell (12) diameter, the longitudinal section of the handle (13) is n shapes.

A kind of 6. drawing tools for mathematics class according to claim 1, it is characterised in that bar shaped slot described in one group Position correspond, it is described support round bar (1) lower face be fixedly connected with trapezoidal round platform (16).