CN219312390U

CN219312390U - Triangle and circular mathematics plotter with adjustable sucking disc formula

Info

Publication number: CN219312390U
Application number: CN202223271037.7U
Authority: CN
Inventors: 齐向前; 孔利娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-07-07
Anticipated expiration: 2032-12-07

Abstract

The suction cup type adjustable triangle and circular mathematical drawing device comprises a circular main ring body, wherein a plurality of supporting feet are uniformly and fixedly connected to the periphery of the main ring body, and a horn-shaped suction cup is respectively arranged on the bottoms of the supporting feet; the inner side of the main ring body is provided with a linear main rotating arm which can rotate around the circumference of the inner side of the main ring body, and the middle part of the top end of the main rotating arm is fixed with a rotating handle; the main rotating arm is provided with an adjusting sleeve capable of moving along the length direction of the main rotating arm, and the adjusting sleeve is provided with a detachable painting brush capable of adjusting the vertical position; the rotary handle is rotationally connected with a central arm, the central arm is provided with a change sleeve capable of moving along the length direction of the central arm, and the bottom of the change sleeve is rotationally connected with a telescopic arm with adjustable length. The utility model effectively solves the problems of single function and inaccurate drawing of the existing equipment.

Description

Triangle and circular mathematics plotter with adjustable sucking disc formula

Technical Field

The utility model belongs to the field of teaching auxiliary instruments, and particularly relates to a sucker-type adjustable triangle and circular mathematical plotter.

Background

The teaching aid refers to a model, a physical object, a specimen, an instrument, a chart, a slide show and the like for explaining something, and comprises teaching equipment, a teaching instrument, practical training equipment, educational equipment, experimental equipment, a teaching specimen, a teaching model and the like.

The geometric and design teacher relates to the content of drawing in teaching, but the traditional drawing instruments such as compasses, set-square and the like are inconvenient to use in teaching practice in class. The existing compasses for mathematical education have single drawing mode, can only draw circles or straight lines without scale foundation, and in the drawing process, the position of the circle center is manually pressed and fixed by a teacher, so that the drawing process is very troublesome, and the current teaching requirements cannot be met.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the sucker type adjustable triangle and circular mathematical plotter, which effectively solves the problems of single function and inaccurate drawing of the prior equipment.

The technical scheme adopted by the utility model for solving the problems is as follows:

the suction cup type adjustable triangle and circular mathematical drawing device comprises a circular main ring body, wherein a plurality of supporting feet are uniformly and fixedly connected to the periphery of the main ring body, and a horn-shaped suction cup is respectively arranged on the bottoms of the supporting feet; the inner side of the main ring body is provided with a linear main rotating arm which can rotate around the circumference of the inner side of the main ring body, and the middle part of the top end of the main rotating arm is fixed with a rotating handle; the main rotating arm is provided with an adjusting sleeve capable of moving along the length direction of the main rotating arm, and the adjusting sleeve is provided with a detachable painting brush capable of adjusting the vertical position;

the rotary handle is rotationally connected with a central arm, the central arm is provided with a change sleeve capable of moving along the length direction of the central arm, and the bottom of the change sleeve is rotationally connected with a telescopic arm with adjustable length; the main rotating arm is provided with an experiment sleeve which can move along the length direction of the main rotating arm; the tail end of the telescopic arm is rotationally connected with the experimental sleeve.

Preferably, two ends of the main rotating arm are respectively provided with an arc-shaped limit groove, and the main rotating arm is rotationally connected with the main ring body through the limit grooves; the upper side surface of the main rotating arm is provided with scale marks; the upper side of the main rotating arm is in threaded connection with two limit screws used for fixing the main rotating arm and the main ring body.

Preferably, a through placing groove is formed in the middle of the top end of the adjusting sleeve downwards, and the painting brush is positioned in the placing groove; the upper part of the adjusting sleeve is in threaded connection with a clamping screw used for fixing the painting brush and the adjusting sleeve;

the adjusting sleeve is connected to the periphery of the main rotating arm in a sliding manner, and a fixing screw used for fixing the adjusting sleeve and the main rotating arm is connected to the side end of the adjusting sleeve in a threaded manner;

the top end of the main rotating arm is downwards provided with a through groove which is penetrated up and down, and the painting brush is positioned in the through groove.

Preferably, the telescopic arm comprises an outer sleeve rod, and the inner side of the outer sleeve rod is connected with an inner rod which can move along the length direction of the outer sleeve rod in a sliding manner; the outer sleeve rod is rotationally connected with the experiment sleeve, and the inner rod is rotationally connected with the change sleeve; the upper surfaces of the outer sleeve rod and the inner rod are respectively provided with scale marks.

Preferably, scale marks are arranged on the upper side surface of the central arm, the change sleeve is connected to the periphery of the central arm in a sliding mode, and the change sleeve is connected with a locking screw which can be used for fixing the change sleeve and the central arm in a threaded mode.

Preferably, the experiment sleeve is slidably connected to the outer periphery of the main rotating arm, and the experiment sleeve is in threaded connection with an experiment screw for fixing the experiment sleeve and the main rotating arm.

Preferably, scale marks are arranged on the upper surface of the main ring body.

Preferably, the sucking disc is made of silica gel.

The utility model has novel structure, ingenious conception and simple and convenient operation, and has the following advantages compared with the prior art:

1. the device can be fixed on the blackboard through the sucking disc, and a teacher is not required to hold the blackboard for operation, so that the accuracy and the use convenience can be improved.

2. The device has good adjustability when drawing circles, and has high accuracy: after the main ring body is fixed and the position of the adjusting sleeve on the main rotating arm is adjusted, circles with different radiuses can be drawn, and the device is convenient and high in accuracy.

3. After the change sleeve on the center arm is detached, the center arm is rotated after the main rotating arm is fixed, so that the center arm and the main rotating arm form a proper angle, the main ring body is matched to achieve the function of drawing an accurate angle, and the teaching accuracy is improved.

Drawings

Fig. 1 is a first isometric view of a suction cup adjustable triangle and circle mathematical plotter of the present utility model.

Fig. 2 is a second isometric view of a suction cup adjustable triangle and circle mathematical plotter of the present utility model.

Fig. 3 is an isometric view of a main boom of a suction cup adjustable triangle and circle mathematical plotter of the present utility model.

Fig. 4 is an isometric view of an adjustment sleeve of a suction cup adjustable triangle and circle mathematical plotter of the present utility model.

Fig. 5 is an isometric view of the center arm and telescoping arm of a suction cup adjustable triangle and circle mathematical plotter of the present utility model.

Fig. 6 is an isometric view of a telescoping arm and experimental set of a suction cup adjustable triangle and circle mathematical plotter of the present utility model.

Fig. 7 is an isometric view of the center arm and the change sleeve of a suction cup adjustable triangle and circle mathematical plotter of the present utility model.

In the accompanying drawings: 1-main ring body, 2-supporting legs, 3-sucking discs, 4-main rotating arms, 5-adjusting sleeves, 6-painting brushes, 7-rotating handles, 8-center arms, 9-telescopic arms, 10-change sleeves, 11-experiment sleeves, 12-through grooves, 13-limit grooves, 14-limit screws, 15-fixing screws, 16-clamping screws, 17-locking screws, 18-experiment screws, 19-outer sleeve rods and 20-inner rods.

Detailed Description

The following are specific embodiments of the present utility model, and the technical solutions of the present utility model are further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1-7, the utility model provides a sucker-type adjustable triangle and circular mathematical drawing device, which comprises a circular main ring body 1, wherein a plurality of supporting legs 2 are uniformly and fixedly connected to the periphery of the main ring body 1, and a horn-shaped sucker 3 is respectively arranged at the bottom of each supporting leg 2; the inner side of the main ring body 1 is provided with a linear main rotating arm 4 which can rotate around the circumference of the inner side of the main ring body 1, and the middle part of the top end of the main rotating arm 4 is fixed with a rotating handle 7; an adjusting sleeve 5 capable of moving along the length direction of the main rotating arm 4 is arranged on the main rotating arm 4, and a detachable painting brush 6 capable of adjusting the vertical position is arranged on the adjusting sleeve 5;

the rotary handle 7 is rotatably connected with a central arm 8, the central arm 8 is provided with a change sleeve 10 which can move along the length direction of the central arm 8, and the bottom of the change sleeve 10 is rotatably connected with a telescopic arm 9 with adjustable length; the main rotating arm 4 is provided with an experiment sleeve 11 which can move along the length direction of the main rotating arm 4; the tail end of the telescopic arm 9 is rotatably connected with the experiment sleeve 11.

The device can be fixed on a blackboard through the sucker 3, and a teacher does not need to hold the blackboard for operation, so that the accuracy and the use convenience can be improved.

The device has good adjustability when drawing circles, and has high accuracy: after the main ring body 1 is fixed and the position of the adjusting sleeve 5 on the main rotating arm 4 is adjusted, circles with different radiuses can be drawn, and the device is convenient and high in accuracy.

After the change sleeve 10 on the center arm 8 is detached, the center arm 8 is rotated after the main rotating arm 4 is fixed, so that the center arm 8 and the main rotating arm 4 form a proper angle, the function of drawing an accurate angle is realized by matching with the main ring body 1, and the teaching accuracy is improved.

After the main rotating arm 4 is fixed, the position of the change sleeve 10 on the center arm 8 or the position of the experiment sleeve 11 on the main rotating arm 4 is changed, so that the change of the triangle shape can be realized, and formulas such as triangle congruence can be conveniently taught in teaching, and the teaching efficiency is improved.

As shown in fig. 3, two ends of the main rotating arm 4 are respectively provided with an arc-shaped limit groove 13, and the main rotating arm 4 is rotationally connected with the main ring body 1 through the limit grooves 13; the upper side surface of the main rotating arm 4 is provided with scale marks; the upper side of the main rotating arm 4 is in threaded connection with two limit screws 14 used for fixing the main rotating arm 4 and the main ring body 1.

When a circle needs to be drawn, the limit screw 14 is unscrewed, so that the main rotating arm 4 can rotate freely, and when the main rotating arm 4 needs to be fixed, the limit screw 14 can be screwed when the fixed angle can be drawn or the side length and the inner angle of the triangle can be adjusted, and the operation is more convenient.

As shown in fig. 3-4, a through placing groove is formed in the middle of the top end of the adjusting sleeve 5 downwards, and the painting brush 6 is positioned in the placing groove; the upper part of the adjusting sleeve 5 is in threaded connection with a clamping screw 16 for fixing the painting brush 6 and the adjusting sleeve 5;

the adjusting sleeve 5 is connected to the periphery of the main rotating arm 4 in a sliding manner, and a fixing screw 15 for fixing the adjusting sleeve 5 and the main rotating arm 4 is connected to the side end of the adjusting sleeve 5 in a threaded manner;

the top end of the main rotating arm 4 is provided with a through groove 12 which is penetrated up and down, and the painting brush 6 is positioned in the through groove 12.

The position of the adjusting sleeve 5 can be accurately adjusted according to the scale marks on the main rotating arm 4, so that the circles with different radiuses can be drawn. And the vertical position of the painting brush 6 can be changed and adjusted, so that the drawing is faster and smoother.

By the provision of the slot 12, the brush 6 can be moved along the main swivel arm 4 in an adjustment position.

As shown in fig. 6, the telescopic arm 9 includes an outer sleeve rod 19, and an inner rod 20 which can move along the length direction of the outer sleeve rod 19 is slidably connected to the inner side of the outer sleeve rod 19; the outer sleeve rod 19 is rotatably connected with the experiment sleeve 11, and the inner rod 20 is rotatably connected with the change sleeve 10; the upper surfaces of the outer sleeve rod 19 and the inner rod 20 are provided with scale marks.

When the position of the changing sleeve 10 on the central arm 8 is adjusted and the position of the experimental sleeve 11 is unchanged, the length of the telescopic arm 9 is also changed, so that the triangular shape change is realized. And information such as side length can be accurately read out through scales on each side.

As shown in fig. 7, the upper surface of the central arm 8 is provided with scale marks, the change sleeve 10 is slidably connected to the outer periphery of the central arm 8, and the change sleeve 10 is in threaded connection with a locking screw 17 which can be used for fixing the change sleeve 10 and the central arm 8.

The desired adjustment can be achieved by unscrewing and tightening the locking screw 17 to effect a change in position or a fixation of the position of the change sleeve 10.

As shown in fig. 1 and 3, the experiment cover 11 is slidably connected to the outer circumference of the main rotating arm 4, and the experiment cover 11 is screwed with an experiment screw 18 for fixing the experiment cover 11 and the main rotating arm 4.

The position change and fixation of the experimental sleeve 11 can be achieved by unscrewing and screwing the experimental screw 18, thereby achieving the adjustment of the triangular shape.

As shown in fig. 1, the upper surface of the main ring body 1 is provided with scale marks.

The scale on the main ring body 1 is matched with the center arm 8, so that the device has the function of a protractor and can accurately draw a required angle.

As shown in fig. 2, the material of the suction cup 3 is silica gel.

The silica gel material adsorptivity is strong, can improve the stability in use of this device.

When the device is used, the device is fixed at a proper position through the sucker 3, the positions of the adjusting sleeve 5 and the painting brush 6 on the adjusting sleeve are adjusted according to the scales on the main rotating arm 4, and a circle with an accurate radius can be drawn; after the main rotating arm 4 is fixed, the change sleeve 10 on the central arm 8 is dismounted, so that a required angle can be drawn according to the scale on the main ring body 1; after the change sleeve 10 is installed on the center arm 8, the position of the change sleeve 10 or the experiment sleeve 11 can be adjusted, so that the triangle shape can be accurately changed according to scales, the teaching is more convenient, vivid and easy to understand, and the teaching efficiency is improved.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions, without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although the terms of the main ring body 1, the support leg 2, the suction cup 3, the main swivel arm 4, the adjustment sleeve 5, the painting brush 6, the swivel handle 7, the center arm 8, the telescopic arm 9, the change sleeve 10, the experiment sleeve 11, the pass through groove 12, the limit groove 13, the limit screw 14, the fixing screw 15, the clamping screw 16, the locking screw 17, the experiment screw 18, the outer sleeve rod 19, the inner rod 20, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. A sucking disc formula triangle and circular mathematics plotter with adjustable, its characterized in that: the novel ring-shaped support comprises a ring-shaped main ring body (1), wherein a plurality of support legs (2) are uniformly and fixedly connected to the periphery of the main ring body (1), and a horn-shaped sucker (3) is respectively arranged at the bottoms of the support legs (2); a linear main rotating arm (4) which can rotate around the circumference of the inner side of the main ring body (1) is arranged on the inner side of the main ring body (1), and a rotating handle (7) is fixed in the middle of the top end of the main rotating arm (4); an adjusting sleeve (5) capable of moving along the length direction of the main rotating arm (4) is arranged on the main rotating arm (4), and a detachable painting brush (6) capable of adjusting the vertical position is arranged on the adjusting sleeve (5);

the rotary handle (7) is rotationally connected with a central arm (8), the central arm (8) is provided with a change sleeve (10) capable of moving along the length direction of the central arm (8), and the bottom of the change sleeve (10) is rotationally connected with a telescopic arm (9) with adjustable length; the main rotating arm (4) is provided with an experiment sleeve (11) which can move along the length direction of the main rotating arm (4); the tail end of the telescopic arm (9) is rotationally connected with the experimental sleeve (11).

2. A suction cup adjustable triangle and circle math plotter as set forth in claim 1 wherein: two ends of the main rotating arm (4) are respectively provided with an arc-shaped limit groove (13), and the main rotating arm (4) is rotationally connected with the main ring body (1) through the limit grooves (13); the upper side surface of the main rotating arm (4) is provided with scale marks; the upper side of the main rotating arm (4) is in threaded connection with two limit screws (14) used for fixing the main rotating arm (4) and the main ring body (1).

3. A suction cup adjustable triangle and circle math plotter as set forth in claim 1 wherein: the middle part of the top end of the adjusting sleeve (5) is provided with a through placing groove downwards, and the painting brush (6) is positioned in the placing groove; the upper part of the adjusting sleeve (5) is in threaded connection with a clamping screw (16) for fixing the painting brush (6) and the adjusting sleeve (5);

the adjusting sleeve (5) is connected to the periphery of the main rotating arm (4) in a sliding manner, and a fixing screw (15) used for fixing the adjusting sleeve (5) and the main rotating arm (4) is connected to the side end of the adjusting sleeve (5) in a threaded manner;

the top end of the main rotating arm (4) is provided with a through groove (12) which is penetrated up and down, and the painting brush (6) is positioned in the through groove (12).

4. A suction cup adjustable triangle and circle math plotter as set forth in claim 1 wherein: the telescopic arm (9) comprises an outer sleeve rod (19), and the inner side of the outer sleeve rod (19) is connected with an inner rod (20) which can move along the length direction of the outer sleeve rod (19) in a sliding manner; the outer sleeve rod (19) is rotationally connected with the experiment sleeve (11), and the inner rod (20) is rotationally connected with the change sleeve (10); the upper surfaces of the outer sleeve rod (19) and the inner rod (20) are respectively provided with scale marks.

5. A suction cup adjustable triangle and circle math plotter as set forth in claim 1 wherein: the upper side surface of the center arm (8) is provided with scale marks, the change sleeve (10) is connected to the periphery of the center arm (8) in a sliding mode, and the change sleeve (10) is connected with a locking screw (17) which can be used for fixing the change sleeve (10) and the center arm (8) in a threaded mode.

6. A suction cup adjustable triangle and circle math plotter as set forth in claim 1 wherein: the experimental sleeve (11) is slidably connected to the periphery of the main rotating arm (4), and the experimental sleeve (11) is in threaded connection with an experimental screw (18) for fixing the experimental sleeve (11) and the main rotating arm (4).

7. A suction cup adjustable triangle and circle math plotter as set forth in claim 1 wherein: the upper surface of the main ring body (1) is provided with scale marks.

8. A suction cup adjustable triangle and circle math plotter as set forth in claim 1 wherein: the sucker (3) is made of silica gel.