CN210116303U

CN210116303U - Multifunctional plotter

Info

Publication number: CN210116303U
Application number: CN201920031870.3U
Authority: CN
Inventors: 刘星佐; 王越平
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-09
Filing date: 2019-01-09
Publication date: 2020-02-28
Anticipated expiration: 2029-01-09

Abstract

The utility model discloses a multifunctional plotter, including last plate body, lower plate body, first chalk groove, second chalk groove and handrail, rectangular hole has been seted up on the plate body down, the lower part in rectangular hole is installed through the bolt in first chalk groove, the one end fixedly connected with fixed block of plate body down, the second chalk groove is fixed to be pegged graft in the jack, the first fixed axle of lower extreme fixedly connected with of handrail, the lower extreme of first fixed axle runs through in the last plate body, and the lower extreme screw thread of first fixed axle installs on protractor coupling mechanism, the last second protractor of installing of rotating of protractor coupling mechanism, rotate on the first fixed axle and install first protractor. The functions of the ruler, the set square, the protractor and the compasses are integrated, so that drawing is facilitated; the carrying is convenient and the resources are reasonably utilized; the drawing method of the traditional compasses is changed, so that the compasses can draw on the blackboard more conveniently.

Description

Multifunctional plotter

Technical Field

The utility model relates to a teaching aid technical field specifically is a multi-functional plotter.

Background

In view of the wide application of the ruler, the set square, the protractor and the compasses in the teaching aid for drawing mathematics from small school to high school, the ruler, the set square, the protractor and the compasses are heavy and inconvenient for teachers to carry due to large volume of the ruler, and the teaching aid needs to be switched ceaselessly when the complicated graphs are drawn. When the multifunctional drawing machine is used, the drawing process is complicated, the drawing speed is reduced, and a large amount of classroom time is wasted.

Because the writing and the blackboard drawing modes are different, a tool which is more suitable for the blackboard drawing is further designed. Therefore, there is a need to provide a multifunctional plotter for teachers, which integrates multiple functions into a whole.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multifunctional plotter which integrates the functions of a ruler, a set square, a protractor and compasses into a whole and is convenient for drawing; the carrying is convenient and the resources are reasonably utilized; the drawing method of the traditional compasses is changed, so that the compasses can draw on the blackboard more conveniently, and the problems in the background technology are solved.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a multifunctional plotter, includes upper plate body, lower plate body, first chalk groove, second chalk groove and handrail, rectangular hole has been seted up on the plate body down, first chalk groove passes through the bolt and installs the lower part in rectangular hole, the one end fixedly connected with fixed block of lower plate body, the jack has been seted up to the lower part of fixed block, second chalk groove is fixed to be pegged graft in the jack, the upper portion fixedly connected with protractor coupling mechanism of fixed block, the first fixed axle of lower extreme fixedly connected with of handrail, the lower extreme of first fixed axle runs through in the upper plate body, and the lower extreme screw thread of first fixed axle installs on protractor coupling mechanism, rotate on the protractor coupling mechanism and install the second protractor, rotate on the first fixed axle and install first protractor.

Preferably, the protractor connecting mechanism comprises a fixing plate, a second fixing shaft is fixedly connected to the fixing plate, a stop block is fixedly connected to the upper end of the second fixing shaft, the second protractor is rotatably sleeved on the second fixing shaft, and the fixing plate is provided with a first threaded hole.

Preferably, the upper plate body is provided with a first through hole, the first fixing shaft penetrates through the first through hole, the lower end of the first fixing shaft is provided with a threaded portion, the threaded portion is installed in the first threaded hole in a threaded manner, and the first protractor and the second protractor are respectively provided with a second through hole convenient to rotate and install.

Preferably, the upper plate body is provided with an observation port with angle scales for convenient observation.

Preferably, chalk insertion holes are formed in the lower surfaces of the first chalk groove and the second chalk groove respectively, and the length of the first chalk groove is 0.4-0.6 times that of the second chalk groove.

Preferably, a second threaded hole is formed in the upper portion of the first chalk groove, and the lower end of the bolt penetrates through the strip hole from top to bottom and is installed in the second threaded hole in a threaded mode.

Preferably, length scale marks for measurement are respectively arranged on one side surface of the upper plate body and one side surface of the lower plate body.

Preferably, the first protractor and the second protractor are 90-degree protractors respectively, and angle scale lines are arranged on the arc surfaces of the first protractor and the second protractor respectively.

Preferably, the sliding grooves are symmetrically formed in two sides of the insertion hole, the clamping blocks are fixedly connected to the inner upper portion of each sliding groove, the elastic plastic protrusions are symmetrically connected to two sides of the upper end of the second chalk groove, and the second chalk groove is fixedly clamped in the insertion hole through the elastic plastic protrusions and the clamping blocks.

Preferably, a limit baffle is fixedly connected to one side face of one end of the lower plate body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the functions of the ruler, the set square, the protractor and the compasses are integrated, so that drawing is facilitated;

2. under the same action, the multifunctional plotter for teachers is smaller in volume than 4 conventional plotters, convenient to carry and capable of reasonably utilizing resources;

3. the drawing method of the traditional compasses is changed, so that the compasses can draw on the blackboard more conveniently.

Drawings

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

fig. 2 is a schematic top view of the present invention;

fig. 3 is a top view of the lower plate body of the present invention;

fig. 4 is a front view of the lower plate body of the present invention;

fig. 5 is a side view of the lower plate body of the present invention;

fig. 6 is a top view of the upper plate body of the present invention;

fig. 7 is a front view of the upper plate body of the present invention;

fig. 8 is a side view of the upper plate body of the present invention;

fig. 9 is a schematic structural view of the armrest of the present invention;

fig. 10 is a schematic structural view of the protractor connecting mechanism of the present invention;

fig. 11 is a schematic structural view of the first protractor of the present invention;

FIG. 12 is a schematic structural view of a first chalk groove of the present invention;

FIG. 13 is a schematic structural view of a second chalk groove of the present invention;

fig. 14 is a schematic view of the internal structure of the fixing block of the present invention;

fig. 15 is a schematic view of the fixing block according to the present invention.

In the figure: the chalk groove structure comprises a first chalk groove 1, a lower plate body 2, a long hole 21, a limit baffle 22, a bolt 3, an upper plate body 4, a first through hole 41, a fixing block 5, a sliding groove 51, a clamping block 52, an insertion hole 53, a second chalk groove 6, an elastic plastic bulge 61, a first fixing shaft 7, a threaded part 71, a first protractor 8, a second through hole 81, a second protractor 9, a handrail 10, an observation opening 11, a length scale line 12, a protractor connecting mechanism 13, a fixing plate 14, a second fixing shaft 15, a stop 16, a first threaded hole 17 and a second threaded hole 18.

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. 1-15, the present invention provides a technical solution: the multifunctional plotter comprises an upper plate body 4, a lower plate body 2, a first chalk groove 1, a second chalk groove 6 and a handrail 10, the lower plate body 2 is provided with a long hole 21, the first chalk groove 1 is arranged at the lower part of the long hole 21 through a bolt 3, one end of the lower plate body 2 is fixedly connected with a fixed block 5, the lower part of the fixed block 5 is provided with an insertion hole 53, the second chalk groove 6 is fixedly inserted in the insertion hole 53, the upper part of the fixed block 5 is fixedly connected with a protractor connecting mechanism 13, the lower end of the handrail 10 is fixedly connected with a first fixed shaft 7, the lower end of the first fixed shaft 7 penetrates through the upper plate body 4, and the lower end screw thread of first fixed axle 7 is installed on protractor coupling mechanism 13, the last second protractor 9 of rotating of protractor coupling mechanism 13, rotate and install first protractor 8 on first fixed axle 7.

Specifically, the protractor connecting mechanism 13 includes a fixing plate 14, a second fixing shaft 15 is fixedly connected to the fixing plate 14, a stop 16 is fixedly connected to the upper end of the second fixing shaft 15, the second protractor 9 is rotatably sleeved on the second fixing shaft 15, and a first threaded hole 17 is formed in the fixing plate 14. The connection of the first protractor 8 to the second protractor 9 is facilitated by a protractor connection mechanism 13.

Specifically, a first through hole 41 is formed in the upper plate body 4, the first fixing shaft 7 penetrates through the first through hole 41, a threaded portion 71 is arranged at the lower end of the first fixing shaft 7, the threaded portion 71 is installed in the first threaded hole 17 in a threaded manner, and second through holes 81 convenient to rotate and install are respectively formed in the first protractor 8 and the second protractor 9. The design of the threaded portion 71 and the first threaded hole 17 facilitates installation.

Specifically, the upper plate body 4 is provided with an observation port 11 with angle scales for convenient observation. The viewing angle is facilitated through the viewing port 11.

Specifically, chalk insertion holes are formed in the lower surfaces of the first chalk groove 1 and the second chalk groove 6 respectively, and the length of the first chalk groove 1 is 0.4-0.6 times that of the second chalk groove 6. The design of difference in height for when drawing, form the triangle-shaped structure between this plotter and the blackboard, it is more stable.

Specifically, a second threaded hole 18 is formed in the upper portion of the first chalk groove 1, and the lower end of the bolt 3 penetrates through the strip hole 21 from top to bottom and is installed in the second threaded hole 18 in a threaded manner. Through the design of bolt 3, can fix first chalk groove 1, and when bolt 3 was loose a little, first chalk groove 1 can also remove along rectangular hole 21, was convenient for adjust appointed scale.

Specifically, one side surfaces of the upper plate body 4 and the lower plate body 2 are respectively provided with length scale marks 12 for measurement. Two sets of drawing arms are formed by the upper plate body 4 and the lower plate body 2, and drawing is facilitated.

Specifically, the first protractor 8 and the second protractor 9 are 90 ° protractors respectively, and the arc surfaces of the first protractor 8 and the second protractor 9 are provided with angle scale lines respectively. Through the design of two sets of protractors, the use and the measurement are more convenient.

Specifically, the sliding grooves 51 are symmetrically formed in two sides of the insertion hole 53, the clamping blocks 52 are fixedly connected to the inner upper portions of the sliding grooves 51, the elastic plastic protrusions 61 are symmetrically connected to two sides of the upper end of the second chalk groove 6, and the second chalk groove 6 is fixedly clamped in the insertion hole 53 through the elastic plastic protrusions 61 and the clamping blocks 52. The plug-in mounting is convenient to carry out through the clamping connection mode of the elastic plastic bulges 61.

Specifically, a limit baffle 22 is fixedly connected to a side surface of one end of the lower plate body 2. The design of the limit baffle 22 prevents the protractor and the upper plate body 4 from rotating excessively.

In the specific implementation, the multifunctional plotter is composed of an acrylic plate and is fixed by matching bolts and nuts. Has the following 4 functions:

① when drawing straight line on the blackboard, since each drawing arm (refer to the upper board 4 and the lower board 2) is marked with scale lines, the two chalk grooves can be detached and pressed on the blackboard for drawing straight line.

② when drawing a triangle, the traditional triangle is not limited to the specified degrees of 30 degrees, 45 degrees, 60 degrees and 90 degrees, when drawing, a datum line is drawn firstly, the degrees are selected by a protractor, the degree mark is made when the upper drawing arm (namely the upper plate body 4) is provided with a groove, the scale line can be seen, and the drawing is completed by extending or completing the triangle side by the drawing arm.

③ when measuring the angle, slightly screwing out the bottom protractor, splicing two 90-degree sector plates (the first protractor 8 and the second protractor 9) into a 180-degree semicircle, placing the 180-degree semicircle on the same horizontal line, aligning one edge of the angle with a 0-degree scribed line, and measuring the degree of the angle to finish the angle measurement.

④ when drawing circle, installing the first and second chalk grooves, moving the first chalk groove to the specified length scale, fixing, preparing drawing, horizontally placing the plotter on the blackboard, pressing the bottom of the plotter with one hand to draw circle as the origin, and completing drawing, wherein the radius of the drawable circle is 37CM at most and 3CM at least.

The drawing instrument integrates the functions of a straight ruler, a set square, a protractor and compasses, and is reasonably designed into an integral structure, so that the drawing convenience is improved. Meanwhile, compared with the volume sum of a ruler, a set square, a protractor and compasses (market standards: the protractor is 50cm, the 45-degree set square is 40cm, the 60-degree set square is 50cm and the compasses is 45cm), the volume sum of the plotter (the whole length is 39.5cm, the width is 4.5cm, the height is MAX9.85cm and the min3cm) is smaller. The floor is made of acrylic materials, so that the firmness of the floor is increased, and the floor cannot be easily damaged when the floor is thrown on the ground at normal temperature. The traditional compasses are two arm of forces, and the deviation appears in easy atress inequality, and this plotter changes the compasses drawing from two arm of forces into an arm of force, and is more stable structurally, and an arm of force more is fit for drawing on the blackboard.

The armrest at the uppermost end of the plotter is fixed, and a circle can be drawn by a single hand. The front surface and the back surface of the double-sided double-scale ruler are provided with two sets of scales, the front surface is provided with scales of a normal ruler, the back surface is provided with a scale special for compasses, the initial numerical value is 3cm (the distance between one end of the long hole 21 and the circle center is 3cm), and the maximum radius is 37cm (the distance between the other end of the long hole 21 and the circle center is 37 cm). The longest usable length of the straight ruler is 35cm, and the protractor is 180 degrees in international standard. A triangle can be drawn up to 180 (the angle at which the drawing arm can be opened up is up to 180 because of the design of the limit stop 22). The overall length of the plotter is 39.5cm, the width is 4.5cm and the height (Max9.85cm, Min3cm) is obtained. The two chalk grooves of the plotter have height difference, and the two chalk grooves of the plotter are triangular with the blackboard when the plotter is placed on the blackboard, so that the two chalk grooves are more stable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a multi-functional plotter, includes plate body (4), lower plate body (2), first chalk groove (1), second chalk groove (6) and handrail (10), its characterized in that: the lower plate body (2) is provided with a long hole (21), the first chalk groove (1) is arranged at the lower part of the long hole (21) through a bolt (3), one end of the lower plate body (2) is fixedly connected with a fixed block (5), the lower part of the fixed block (5) is provided with an insertion hole (53), the second chalk groove (6) is fixedly inserted in the insertion hole (53), the upper part of the fixed block (5) is fixedly connected with a protractor connecting mechanism (13), the lower end of the handrail (10) is fixedly connected with a first fixed shaft (7), the lower end of the first fixed shaft (7) penetrates through the upper plate body (4), and the lower end thread of the first fixed shaft (7) is arranged on the protractor connecting mechanism (13), the protractor connecting mechanism (13) is rotatably provided with a second protractor (9), and a first protractor (8) is rotatably arranged on the first fixed shaft (7).

2. A multi-purpose plotter according to claim 1, characterized in that: the protractor connecting mechanism (13) comprises a fixing plate (14), a second fixing shaft (15) is fixedly connected to the fixing plate (14), a stop block (16) is fixedly connected to the upper end of the second fixing shaft (15), the second protractor (9) is rotatably sleeved on the second fixing shaft (15), and a first threaded hole (17) is formed in the fixing plate (14).

3. A multi-purpose plotter according to claim 2, characterized in that: the improved angle gauge is characterized in that a first through hole (41) is formed in the upper plate body (4), the first fixing shaft (7) penetrates through the first through hole (41), a threaded portion (71) is arranged at the lower end of the first fixing shaft (7), the threaded portion (71) is installed in a first threaded hole (17) in a threaded mode, and second through holes (81) convenient to rotate and install are formed in the first angle gauge (8) and the second angle gauge (9) respectively.

4. A multi-purpose plotter according to claim 1, characterized in that: an observation port (11) with angle scales convenient for observation is arranged on the upper plate body (4).

5. A multi-purpose plotter according to claim 1, characterized in that: chalk inserting holes are formed in the lower surfaces of the first chalk groove (1) and the second chalk groove (6) respectively, and the length of the first chalk groove (1) is 0.4-0.6 times that of the second chalk groove (6).

6. A multi-purpose plotter according to claim 1, characterized in that: second screw hole (18) have been seted up on the upper portion of first chalk groove (1), the lower extreme of bolt (3) is from last to running through in rectangular hole (21) and threaded mounting in second screw hole (18) down.

7. A multi-purpose plotter according to claim 1, characterized in that: and length scale marks (12) for measurement are respectively arranged on one side surfaces of the upper plate body (4) and the lower plate body (2).

8. A multi-purpose plotter according to claim 1, characterized in that: the first protractor (8) and the second protractor (9) are respectively 90-degree protractors, and angle scale lines are respectively arranged on the arc surfaces of the first protractor (8) and the second protractor (9).

9. A multi-purpose plotter according to claim 1, characterized in that: spout (51) have been seted up to the bilateral symmetry of jack (53), the interior upper portion fixedly connected with fixture block (52) of spout (51), the upper end bilateral symmetry of second chalk groove (6) is connected with elastic plastic arch (61), second chalk groove (6) are through elastic plastic arch (61) and fixture block (52) fixed joint in jack (53).

10. A multi-purpose plotter according to claim 1, characterized in that: and a limit baffle (22) is fixedly connected to one end side face of the lower plate body (2).