CN210309692U

CN210309692U - Multifunctional line drawing device for teaching

Info

Publication number: CN210309692U
Application number: CN201920208289.4U
Authority: CN
Inventors: 孔庆新
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-01
Filing date: 2019-02-01
Publication date: 2020-04-14
Anticipated expiration: 2029-02-01

Abstract

A multifunctional line drawing device for teaching. At present, teachers draw circles or ellipses by hands without professional tools, but the drawn circles or ellipses are not standard and easily influence the understanding of students. The utility model provides a teaching is with multi-functional setting-out device, its constitution includes: scriber (8), rotating ware (11) and cylindrical support (14), cylindrical support on follow supreme cover respectively down have elliptical plate (18) and the rotating ware, the rotating ware with cylindrical support pass through the bearing and connect, the rotating ware on fixed disk (13) with the scriber connect through the pivot, the elliptical plate on have round convex type groove (17), convex type inslot install sliding block (4), the sliding block on bolt (21) be located the bar groove (6) of scriber in. The utility model discloses be applied to teaching and use multi-functional setting-out device.

Description

Multifunctional line drawing device for teaching

Technical Field

The utility model relates to a teaching aid, concretely relates to teaching is with multi-functional setting-out device.

Background

The teacher often can draw circular structure or oval structure and make things convenient for student's study on the blackboard when teaching, and the teacher does not have professional instrument when drawing circle or ellipse at present, all can directly draw it with the hand, but the circular or oval of drawing like this is not standard, produces the influence to student's understanding easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the teaching that the teacher draws circle or ellipse and does not have the instrument of specialty, the circular or oval problem of irregularity of drawing provides a draw simultaneously circular and oval, and the graphic size of drawing can carry out the teaching of adjusting and uses multi-functional setting-out device.

The above purpose is realized by the following technical scheme:

the utility model provides a teaching is with multi-functional setting-out device, its constitution includes: scriber, rotating ware and cylindrical support, cylindrical support on follow supreme cover respectively from down have the elliptical plate with the rotating ware, the rotating ware with cylindrical support pass through the bearing and connect, the rotating ware on the fixed disk with the scriber connect through the pivot, the elliptical plate on have a round convex groove, convex inslot install the sliding block, the sliding block on the bolt be located the bar inslot of scriber.

The teaching multifunctional line drawing device comprises a body, the lower end of the body is provided with a circular groove, a spring is installed in the circular groove, and the upper portion of the chalk clamp is located in the circular groove and fixedly connected with the spring.

The teaching use multi-functional setting-out device, the inside fixer that is provided with of cylindrical support, the fixer include with cylindrical support fixed connection's L type shell fragment, L type shell fragment on have two fixed pins respectively and one press and move the head, the cylindrical support lateral wall on have three locating hole, the fixed pin with the pressure move the head and be located the locating hole of cylindrical support lateral wall, the elliptical plate inside recess has.

The multifunctional line drawing device for teaching is characterized in that a sucker is installed on the lower portion of the cylindrical support.

The teaching multifunctional line drawing device is characterized in that a round hole is formed in the fixed disc, and the lower end of the fixed rod penetrates through the round hole in the fixed disc and is located in the clamping groove in the upper end of the elliptical plate.

The teaching use multi-functional setting-out device, the length of pressure movable head do 2 times of fixed pin, the length of fixed pin do 3 times of cylindrical support's side wall thickness.

The teaching multifunctional line drawing device is characterized in that the width of the sliding block is 1-3 mm.

The utility model discloses the beneficial effect who reaches is:

1. the utility model discloses a theory of operation does: when a small circle is required to be drawn, the elliptical plate is located between the two fixing pins, the lower portion of the fixing rod is inserted into the clamping groove of the elliptical plate, the elliptical plate and the scriber are fixed, chalk on the chalk clamp is always kept in contact with the blackboard under the action of the spring, the sucking disc is sucked on the blackboard, the rotator is rotated, the rotator drives the elliptical plate to rotate, and the chalk draws the circle on the blackboard;

when a small ellipse needs to be drawn, the pressing head is pressed by a hand, the elliptical plate moves downwards, the pressing head is released, the fixing pin at the lower part of the fixer is positioned in the groove in the elliptical plate, the fixing rod is pulled out, the sucking disc is sucked on the blackboard, chalk on the line drawing pen keeps in contact with the blackboard under the action of the spring, the rotator is rotated, the bolt on the sliding block is positioned in the strip-shaped groove of the line drawing device, and the line drawing device rotates around the elliptical plate under the limitation of the sliding block, so that the small ellipse can be drawn;

when a large circle needs to be drawn, the elliptical plate is located on the upper portion of the fixing pin at the uppermost end, the lower portion of the fixing rod is inserted into the clamping groove of the elliptical plate, the elliptical plate and the line drawer are kept fixed, chalk on the chalk clamp is always kept in contact with the blackboard under the action of the spring, the sucking disc is sucked on the blackboard, the rotator is rotated, the rotator drives the elliptical plate to rotate, and the chalk draws the circle on the blackboard along with the chalk;

when the large ellipse needs to be drawn, the pressing head is pressed by a hand, the elliptical plate moves downwards, the pressing head is loosened at the moment, the fixing pin on the upper portion of the fixing device is located in the groove inside the elliptical plate, the fixing rod is extracted, the sucking disc is sucked on the blackboard, chalk on the line drawing pen keeps in contact with the blackboard under the action of the spring, the rotating device is rotated, the bolt on the sliding block is located in the strip-shaped groove of the line drawing device, and the line drawing device rotates around the elliptical plate under the limitation of the sliding block, so that the small ellipse can be drawn.

2. The utility model discloses set up the structure that elliptical plate and scriber combined together for the scriber can draw ellipse and circular, can draw ellipse and circular of two kinds of sizes, and the drawing is standard, improves student's learning ability and comprehension ability.

3. The utility model discloses set up the fixer, can be so that keep relative rotation and fixed two kinds of modes between elliptical plate and the cylindrical stand, can draw and switch between circular and the drawing ellipse, switch simply, conveniently draw the figure, improve teaching efficiency.

4. The utility model discloses set up the sucking disc, 5cm mushroom head vacuum chuck is selected to the sucking disc, can inhale the cylindrical support on the blackboard, and the convenience is fixed the cylindrical support, and is fixed convenient.

5. The utility model discloses simple structure adopts the plastics material, and equipment is light, can hand-carry, can draw the figure fast.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view showing a large circle;

FIG. 3 is a schematic view showing a large oval;

FIG. 4 is a schematic view of a structure depicting a small oval;

FIG. 5 is a schematic view of an elliptical plate;

in the figure: 1. a chalk clip; 2. a circular groove; 3. a spring; 4. a slider; 5. a fixing pin; 6. a strip-shaped groove; 7. a body; 8. a scriber; 9. pressing the movable head; 11. a rotator; 12. fixing the rod; 13. fixing the disc; 14. a cylindrical support; 15. a holder; 16. an L-shaped elastic sheet; 17. a convex groove; 18. an elliptical plate; 19. a suction cup; 20. positioning holes; 21. a bolt; 22. a clamping groove.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example 1:

the utility model provides a teaching is with multi-functional setting-out device, its constitution includes: scriber 8, rotating ware 11 and cylindrical support 14, cylindrical support on follow supreme cover respectively from down have elliptical plate 18 with the rotating ware, the rotating ware with cylindrical support pass through the bearing and connect, the rotating ware on fixed disk 13 with the scriber connect through the pivot, the elliptical plate on have a round convex type groove 17, convex type inslot install sliding block 4, the sliding block on bolt 21 be located the bar groove 6 of scriber.

Example 2;

according to embodiment 1 multi-functional setting-out device is used in teaching, the setting-out ware include body 7, the lower extreme of body circular slot 2 has, the circular slot in install spring 3, chalk clamp 1 upper portion be located the circular slot in with spring fixed connection, the model of chalk clamp is MYNGYO-2.

Example 3:

according to embodiment 1 or 2 teaching use multi-functional setting-out device, the inside fixer 15 that is provided with of cylindrical support, the fixer include with cylindrical support fixed connection's L type shell fragment 16, L type shell fragment on have two fixed pins 5 and one pressure respectively and move head 9, the cylindrical support lateral wall on have three locating hole 20, the fixed pin with the pressure move the head and be located the locating hole of cylindrical support lateral wall, the elliptical plate inside recess has.

Example 4:

according to the multifunctional line drawing device for teaching in the embodiment 1, the multifunctional line drawing device for teaching in the embodiment 2 or the embodiment 3, the lower part of the cylindrical support is provided with the sucking disc 19.

Example 5:

according to

embodiment

1 or 2 or 3 or 4, the fixed disk is provided with a round hole, and the lower end of the fixing rod 12 penetrates through the round hole in the fixed disk and is positioned in the clamping groove 22 at the upper end of the elliptical plate.

Example 6:

according to

embodiment

1 or 2 or 3 or 4 or 5, the length of the pressing head is 2 times that of the fixing pin, and the length of the fixing pin is 3 times that of the side wall of the cylindrical support.

Example 7:

according to

embodiment

1 or 2 or 3 or 4 or 5 or 6 the multi-functional setting-out device is used in teaching, the width of sliding block be 1-3 mm.

Claims

1. The utility model provides a teaching is with multi-functional setting-out device, its constitution includes: scriber, rotator and cylindrical stand, characterized by: cylindrical support on follow supreme cover respectively from down have an elliptical plate with the rotation ware, the rotation ware with cylindrical support pass through the bearing and connect, the rotation ware on the fixed disk with the scriber connect through the pivot, the elliptical plate on have a round convex groove, convex inslot install the sliding block, the sliding block on the bolt be located the bar inslot of scriber.

2. A multifunctional line drawing device for teaching as claimed in claim 1, wherein: the scriber include the body, the lower extreme of body the circular slot has, the circular slot in install the spring, chalk clip upper portion be located the circular slot in with spring fixed connection.

3. A multifunctional line drawing device for teaching as claimed in claim 1, wherein: the inside fixer that is provided with of cylindrical support, the fixer include with cylindrical support fixed connection's L type shell fragment, L type shell fragment on have two fixed pins and one respectively and press and move the head, the cylindrical support lateral wall on have three locating hole, the fixed pin with the pressure move the head and be located the locating hole of cylindrical support lateral wall, elliptical plate inside recess has.

4. A multifunctional line drawing device for teaching according to claim 1 or 3, wherein: and the lower part of the cylindrical support is provided with a sucker.

5. A multifunctional line drawing device for teaching as claimed in claim 1, wherein: the fixed disk is provided with a round hole, and the lower end of the fixed rod penetrates through the round hole in the fixed disk and is positioned in the clamping groove in the upper end of the elliptical plate.

6. A multifunctional line drawing device for teaching as claimed in claim 3, wherein: the length of the pressure head is 2 times that of the fixing pin, and the length of the fixing pin is 3 times that of the side wall of the cylindrical support.

7. A multifunctional line drawing device for teaching as claimed in claim 1, wherein: the width of the sliding block is 1-3 mm.