CN214727755U

CN214727755U - Device for drawing and demonstrating pie chart and line chart

Info

Publication number: CN214727755U
Application number: CN202120729007.2U
Authority: CN
Inventors: 刘明君; 王美; 刘明明; 何琳
Original assignee: Zhengzhou Institute of Finance and Economics
Current assignee: Zhengzhou Institute of Finance and Economics
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-11-16
Anticipated expiration: 2031-04-12

Abstract

The utility model discloses a pie chart and tangent line chart drawing demonstration device, including the U-shaped frame, the inboard middle part of U-shaped frame is provided with the baffle, baffle left part front side is provided with a plurality of lead screws, lead screw upper portion and lower extreme all rotate and are connected with the support frame, the support frame rear side is fixed with the sliding block, the sliding block middle part slides there is the guide bar, the meshing of lead screw middle part has the screw block, the front side of screw block is provided with the becket, baffle rear side middle part is fixed with the calibrated scale, calibrated scale central point position front side is fixed with the screwed pipe, the screwed pipe outside cover is equipped with a plurality of swivel rings, the swivel ring outside is fixed with the pointer, swivel ring front side and rear side all are provided with the rubber ring, the outside inboard meshing of screwed pipe has the bolt, the bolt outside cover is equipped with the pipe of straining; the utility model has the advantages of simple structure, adjust quick, convenient operation, can carry out the drawing of pie chart and tangent line picture and the drawing is efficient.

Description

Device for drawing and demonstrating pie chart and line chart

Technical Field

The utility model belongs to the technical field of statistics apparatus, in particular to presentation device is drawn with orthogram to pie chart.

Background

Pie charts are generally used for statistical models, the proportion of each part can be reflected more intuitively, straight line charts are also called as line charts, the line charts can display continuous data changing along with time, most statistical data distribution demonstration in the traditional method is to draw a data distribution diagram on a blackboard and then perform demonstration explanation, so that the data are visually represented, however, the drawing consumes long time and is not accurate enough, meanwhile, the existing device can only draw one type of graph generally, and when the device is used, the number of threaded rods is fixed, so that the statistical type on a transverse shaft cannot be adjusted, and the learning effect is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a presentation device is drawn to pie chart and tangent line picture, have simple structure, adjust quick, convenient operation, can carry out the drawing of pie chart and tangent line picture and draw efficient advantage.

In order to achieve the above object, the utility model provides a following technical scheme: a device for drawing and demonstrating pie-shaped graphs and line graphs comprises a U-shaped frame, wherein a supporting column is arranged on the lower side of the U-shaped frame, a bottom plate is arranged on the lower side of the supporting column, a partition plate is arranged in the middle of the inner side of the U-shaped frame, writing boards are symmetrically arranged on the front side and the rear side of the U-shaped frame in a left-right mode, a plurality of lead screws are arranged on the front side of the left portion of the partition plate, the upper portions and the lower ends of the lead screws are rotatably connected with a supporting frame, a hand wheel is arranged at the upper end of each lead screw, a sliding block is fixed on the rear side of the supporting frame, guide rods are arranged in the middle of the sliding block in a sliding mode, the number of the guide rods is two, a thread block is meshed in the middle of each lead screw, a rope ring is arranged on the front side of each thread block, a rope winder is arranged in the middle of the left side of the U-shaped frame, a traction rope is wound in the rope winder, the traction rope passes through the rope ring, a dial is fixed in the middle of the rear side of the partition plate, a threaded pipe is fixed on the center of the dial, the utility model discloses a screwed pipe, including screwed pipe, swivel nut, screw tube outside cover and be equipped with a plurality of swivel nut, the swivel nut outside is fixed with the pointer, swivel nut front side and rear side all are provided with the rubber ring, the outside inboard meshing of screwed pipe has the bolt, the bolt outside cover is equipped with the pipe of sticising.

Preferably, the left end and the right end of the guide rod are fixedly connected with the U-shaped frame.

Preferably, the right end of the traction rope is fixedly connected with the rope ring on the rightmost side of the partition plate.

Preferably, the number of the writing boards is 4.

Preferably, the writing board is fixedly connected with the U-shaped frame.

Preferably, the partition plate is fixedly connected with the U-shaped frame.

Preferably, the outer end of the bolt is fixedly connected with the outer end of the pressing pipe.

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

the utility model discloses a lead screw, support frame, sliding block, guide bar, thread piece, serving and haulage rope can carry out the drawing of tangent line picture, and the drawing method is simple quick, can adjust the quantity of the lead screw on the cross axle as required simultaneously, thereby make the utility model discloses a practicality is stronger, simultaneously through setting up the board, can combine together with the figure through the characters for the study personnel understand the content of figure more easily, very big improvement demonstration effect, simultaneously through setting up the calibrated scale, can make the rotation angle of pointer more accurate, thereby make the drawing of pie chart more accurate, the utility model discloses a combine the drawing of tangent line picture and pie chart, and simple structure, very big improvement the utility model discloses a practicality to and portability are consequently fit for using widely.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the screw and the guide rod of the present invention.

Fig. 3 is a schematic structural diagram of the dial and the pointer of the present invention.

Fig. 4 is a right-side view structural diagram of the threaded pipe and the rotating ring of the present invention.

Fig. 5 is a partial enlarged view of the present invention.

In the figure: 1. u-shaped frame, 2, pillar, 3, bottom plate, 4, clapboard, 5, tablet, 6, lead screw, 7, support frame, 8, hand wheel, 9, sliding block, 10, guide rod, 11, thread block, 12, rope ring, 13, hauling rope, 14, rope winder, 15, dial, 16, thread pipe, 17, rubber ring, 18, rotating ring, 19, pointer, 20, bolt, 21, pressing pipe.

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. 1-5, the present embodiment provides a device for drawing and demonstrating a pie chart and a line chart, which includes a U-shaped frame 1, a support column 2 is disposed on the lower side of the U-shaped frame 1, a bottom plate 3 is disposed on the lower side of the support column 2, a partition plate 4 is disposed in the middle of the inner side of the U-shaped frame 1, writing boards 5 are symmetrically disposed on the front side and the rear side of the U-shaped frame 1, a plurality of lead screws 6 are disposed on the front side of the left portion of the partition plate 4, a support frame 7 is rotatably connected to the upper portion and the lower portion of each lead screw 6, a hand wheel 8 is disposed at the upper end of each lead screw 6, a sliding block 9 is fixed on the rear side of each support frame 7, guide rods 10 are slidably disposed in the middle of each sliding block 9, the number of the guide rods 10 is two, a threaded block 11 is engaged with the middle of each lead screw 6, a rope loop 12 is disposed on the front side of each threaded block 11, a rope winder 14 is disposed in the middle of the left side of the U-shaped frame 1, the winding has haulage rope 13 in ropewinder 14, haulage rope 13 passes becket bridle 12, 4 rear sides middle parts of baffle are fixed with calibrated

scale

15, 15 central point of calibrated scale puts the front side and is fixed with screwed

pipe

16, 16 outside covers of screwed pipe are equipped with a plurality of swivel 18, the swivel 18 outside is fixed with pointer 19, swivel 18 front side and rear side all are provided with rubber ring 17, the outside inboard meshing of screwed pipe 16 has bolt 20, the bolt 20 outside covers and is equipped with and tightly compels pipe 21.

In order to fix the guide rod 10, in the present embodiment, it is preferable that both left and right ends of the guide rod 10 are fixedly connected to the U-shaped frame 1.

In order to move the position of the pulling rope 13 by moving the position of the rope ring 12, thereby facilitating drawing a straight line figure, in this embodiment, it is preferable that the right end of the pulling rope 13 is fixedly connected with the rope ring 12 at the rightmost side of the partition plate 4.

In order to facilitate writing, the demonstration is performed in a mode of combining pictures and texts, so that the demonstration effect is better, and in the embodiment, preferably, the number of the writing boards 5 is 4.

In order to fix the writing board 5, in the embodiment, preferably, the writing board 5 is fixedly connected with the U-shaped frame 1.

In order to fix the partition board 4, in the embodiment, preferably, the partition board 4 is fixedly connected with the U-shaped frame 1.

In order to facilitate the movement of the pressing tube 21 by rotating the bolt 20, so as to press the rubber ring 17, so that a pressure is generated between the rotating rings 18, thereby fixing the rotating rings 18, in this embodiment, it is preferable that the outer end of the bolt 20 is fixedly connected with the outer end of the pressing tube 21.

The utility model discloses a theory of operation: when the device is used for drawing a linear graph, the number of the lead screws 6 is slid out as required, the rest lead screws 6 are still stored at the left part of the U-shaped frame 1, the sliding blocks 9 at the upper part and the lower end of the slid-out lead screws 6 are then slid, the distance between the adjacent lead screws 6 is adjusted, the hand wheel 8 is then rotated, the hand wheel 8 is rotated to drive the lead screws 6 to rotate, the thread blocks 11 move along the direction of the lead screws 6 under the meshing of the lead screws 6, the thread blocks 11 drive the rope rings 12 and the traction ropes 13 to move, the height of each rope ring 12 is adjusted according to drawing data, and thus the drawing of the linear graph is completed, the mode is simple and fast, when a pie graph is required to be drawn, the U-shaped frame 1 is rotated 180 degrees, the other side of the partition plate 4 faces a learner, then the screw out is screwed through the bolts 20, the rubber ring 17 at the outer side is taken out, the rotating ring 18 fixed with the pointer 19 is sleeved in the threaded pipe 16, the screw thread of screwed pipe 16 is the internal thread, the quantity of swivel nut 18 is established to the cover as required, the completion back is established to the swivel nut 18 cover, establish the screwed pipe 16 outside with rubber ring 17 cover, then screw into screwed pipe 16 with bolt 20, bolt 20 drives and tightly forces pipe 21, tightly forces pipe 21 to extrude swivel nut 18 through rubber ring 17, then adjust pointer 19's angle according to calibrated scale 15, screw up bolt 20 after the regulation is accomplished to accomplish the drawing of pie chart, this kind of drawing mode is more high-efficient, simultaneously the utility model discloses can enough draw the graticule map, can draw the pie chart again simultaneously, make it have practicality and convenience more.

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 presentation device is drawn to pie chart and line graph, includes the U-shaped frame, its characterized in that: the lower side of the U-shaped frame is provided with a supporting column, the lower side of the supporting column is provided with a bottom plate, the middle part of the inner side of the U-shaped frame is provided with a partition plate, the front side and the rear side of the U-shaped frame are symmetrically provided with writing boards, the front side of the left part of the partition plate is provided with a plurality of lead screws, the upper parts and the lower ends of the lead screws are rotatably connected with a support frame, the upper ends of the lead screws are provided with hand wheels, the rear side of the support frame is fixed with sliding blocks, the middle parts of the sliding blocks are provided with guide rods in a sliding manner, the number of the guide rods is two, the middle parts of the lead screws are meshed with threaded blocks, the front sides of the threaded blocks are provided with rope rings, the middle part of the left side of the U-shaped frame is provided with a rope winder, a traction rope is wound in the rope winder, the traction rope passes through the rope rings, the middle part of the rear side of the partition plate is fixed with a dial, the front side of the central position of the dial is fixed with a threaded pipe, the outer side of the threaded pipe is sleeved with a plurality of rotating rings, the outside of the rotating ring is fixed with a pointer, the front side and the rear side of the rotating ring are both provided with rubber rings, the outside inner side of the threaded pipe is engaged with a bolt, and the outside of the bolt is sleeved with a pressing pipe.

2. The device for drawing and demonstrating pie-shaped graphs and line graphs according to claim 1, wherein: the left end and the right end of the guide rod are fixedly connected with the U-shaped frame.

3. The device for drawing and demonstrating pie-shaped graphs and line graphs according to claim 1, wherein: the right end of the traction rope is fixedly connected with the rope ring on the rightmost side of the partition plate.

4. The device for drawing and demonstrating pie-shaped graphs and line graphs according to claim 1, wherein: the number of the writing boards is 4.

5. The device for drawing and demonstrating pie-chart and line-chart according to claim 4, wherein: the writing board is fixedly connected with the U-shaped frame.

6. The device for drawing and demonstrating pie-shaped graphs and line graphs according to claim 1, wherein: the baffle is fixedly connected with the U-shaped frame.

7. The device for drawing and demonstrating pie-shaped graphs and line graphs according to claim 1, wherein: the outer end of the bolt is fixedly connected with the outer end of the pressing pipe.