CN214355199U

CN214355199U - Circle drawing auxiliary device for solving problems by applying mathematics

Info

Publication number: CN214355199U
Application number: CN202120085262.8U
Authority: CN
Inventors: 孙洁
Original assignee: Xian International University
Current assignee: Xian International University
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-10-08
Anticipated expiration: 2031-01-13

Abstract

The utility model discloses a circle drawing auxiliary device for solving problems by applying mathematics, which comprises a tool plate, wherein the tool plate is provided with a movable opening, a slide block is connected in the movable opening in a sliding way, one side of the tool plate is provided with a support plate, the lower surface of the support plate is provided with a limit plate, the limit plate is provided with a rotary groove, a screw rod is inserted in the rotary groove, the screw rod is in threaded connection with a nut, one end of the nut is provided with a connecting rod, one end of the connecting rod is connected on the slide block, the lower surface of the tool plate is provided with a bearing, one end of the screw rod penetrating out of an inner ring of the bearing is provided with a crank, the tool plate is provided with a scale, the slide block is provided with a pointer, the screw rod is driven to rotate by shaking the crank, the slide block slides in the movable opening, the support bearing is fixed on a blackboard by pressing the fixed handle with one hand after being adjusted to a proper radius, the rotary handle is held by the other hand to rotate by taking the support column as the center, to complete the circle drawing operation, thereby improving the drawing efficiency.

Description

Circle drawing auxiliary device for solving problems by applying mathematics

Technical Field

The utility model belongs to the technical field of teaching equipment, concretely relates to use mathematics to solve a problem with drawing circle auxiliary device.

Background

The application mathematics is very important in the teaching of advanced mathematics, and the profession cultivates and masters the basic theory and the basic method of the mathematics science, has the capability of applying mathematical knowledge and solving practical problems by using a computer, is subjected to the initial training of scientific research, and can be used as a high-level special talent for carrying out research and teaching work in scientific and technological departments, education departments and economic departments or carrying out practical application, development research and management work in production, management departments.

When using mathematical education, draw circle auxiliary device can be used often, draw the circle at current circle auxiliary device and refer to the compasses generally, when needs adopt the compasses to draw the circle to different diameters, generally need open the ink line foot and the extension rod of compasses, place after opening and measure the distance between the two on the ruler, draw the diameter of measuring the back circle, adopt above-mentioned way can appear when measuring numerical value after, touch ink line foot and extension rod carelessly and can make the measuring distance reduce or grow, cause the radius of drawing the circle inaccurate, the error appears easily, when drawing the concentric circles of a plurality of different diameters simultaneously, every circle of drawing a diameter all need be measuring the distance between ink line foot and the extension rod with the ruler again, waste time and energy, thereby the efficiency of drawing is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an use mathematics problem solving is with drawing circle auxiliary device to there is the error and draw the inefficiency problem easily to solve among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the circle drawing auxiliary device for solving the problem by applying mathematics comprises a tool plate, wherein a movable opening is formed in the tool plate, a sliding block is connected in the movable opening in a sliding mode, a supporting plate is arranged on one side of the tool plate, a limiting plate is arranged on the lower surface of the supporting plate, a rotary groove is formed in the limiting plate, a screw rod is inserted in the rotary groove, a nut is connected to the screw rod in a threaded mode, a connecting rod is arranged at one end of the nut, one end of the connecting rod is connected to the sliding block, a bearing is arranged on the lower surface of the tool plate, a crank is arranged at one end, penetrating out of an inner ring of the bearing, of the screw rod, a scale is arranged on the tool plate, a pointer is arranged on the sliding block, the sliding block is of a square block structure, a clamping pipe is arranged on one side of the sliding block, a writing pen is inserted in the clamping pipe, a supporting column is arranged on one side of the supporting plate, and a supporting bearing is arranged at the other end of the supporting column, the other side of the supporting plate is provided with a fixed handle.

Preferably, a rotating handle is provided at one side of the tool plate.

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

the utility model provides an applied mathematics is solved problem and is used drawing circle auxiliary device, drive the screw rod through waveing the crank and rotate, make the nut along being horizontal migration on the screw rod, it slides at the expansion gap to drive the slider, drive pointer horizontal migration simultaneously, the position of the directional scale of fingertip of pointer is the radius size of the circle of drawing, adjust to suitable radius size after, press down fixed handle through one hand and fix the bearing and place on the blackboard, another hand is held rotatory handle and is used the support column to rotate as the center, accomplish the operation of drawing a circle, thereby the efficiency of the drawing of improvement.

The utility model provides an applied mathematics is solved problem and is used drawing circle auxiliary device when needing to draw the concentric circles, as long as rotatory crank for the slider drives the writing pen and carries out the displacement, accomplishes the adjustment to the radius size of the circle of drawing, effectual reduction error, improved drawing efficiency.

Drawings

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

FIG. 2 is a cutaway schematic view of FIG. 1;

fig. 3 is a top view partially schematic of a-a of fig. 1.

In the figure: 1 tool plate, 2 movable openings, 3 sliding blocks, 4 supporting plates, 5 limiting plates, 6 rotary grooves, 7 screw rods, 8 nuts, 9 connecting rods, 10 bearings, 11 crank handles, 12 scales, 13 pointers, 14 clamping pipes, 15 writing pens, 16 supporting columns, 17 supporting bearings, 18 fixed handles and 19 rotary handles.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1, 2 and 3, a circle drawing auxiliary device for solving problems by applying mathematics comprises a tool plate 1, wherein a movable port 2 is arranged on the tool plate 1, the movable port 2 is of a square port structure, a slide block 3 is slidably connected in the movable port 2, the slide block 3 is of a square block structure, a support plate 4 is welded on the left side of the tool plate 1, a limit plate 5 is welded on the lower surface of the support plate 4, a rotary groove 6 is arranged on the limit plate 5, the rotary groove 6 is of a U-shaped groove structure, a screw 7 is inserted in the rotary groove 6 in a rotating manner, a nut 8 is connected on the screw 7 in a threaded manner, a connecting rod 9 is welded at the top end of the nut 8, one end of the connecting rod 9 is welded on the slide block 3, a bearing 10 is welded on the lower surface of the tool plate 1, one end of the screw 7 which is in interference connection and penetrates out of an inner ring of the bearing 10 is welded with a crank 11, a scale 12 is welded on the tool plate 1 and on the slide block 3, a pointer 13 is welded to a position corresponding to the scale 12.

Referring to fig. 1, 2 and 3, a clamping tube 14 is welded to the rear of the slider 3, a writing pen 15 is inserted into the clamping tube 14, a support column 16 is welded to the rear of the support plate 4, a support bearing 17 is welded to the other end of the support column 16, a fixed handle 18 is welded to the front of the support plate 4, and a rotary handle 19 is welded to the right side of the tool plate 1.

Drive screw rod 7 through rocking crank 11 and rotate, make nut 8 be horizontal migration along on the screw rod 7, drive slider 3 and slide at activity mouth 2, drive pointer 13 horizontal migration simultaneously, the pointed scale 12 of pointer 13 fingertip position is the radius size of the circle of drawing, adjust to suitable radius size after, press fixed handle 18 through one hand and fix and place bearing 17 on the blackboard, rotatory handle 19 is held to another hand and uses support column 16 to rotate as the center, accomplish the operation of drawing, thereby the efficiency of the drawing that improves. When concentric circles need to be drawn, the crank 11 is rotated, so that the slider 3 drives the writing pen 15 to displace, the adjustment of the radius of the drawn circle is completed, errors are effectively reduced, and the drawing efficiency is improved.

Claims

1. The utility model provides an use mathematics problem solving with drawing circle auxiliary device, includes instrument board (1), its characterized in that: the tool plate is characterized in that a movable opening (2) is formed in the tool plate (1), a sliding block (3) is connected in the movable opening (2), a supporting plate (4) is arranged on one side of the tool plate (1), a limiting plate (5) is arranged on the lower surface of the supporting plate (4), a rotary groove (6) is formed in the limiting plate (5), a screw rod (7) is inserted into the rotary groove (6), a nut (8) is connected to the screw rod (7) in a threaded manner, a connecting rod (9) is arranged at one end of the nut (8), one end of the connecting rod (9) is connected to the sliding block (3), a bearing (10) is arranged on the lower surface of the tool plate (1), a crank (11) is arranged at one end, penetrating out of an inner ring of the bearing (10), of the screw rod (7), a scale (12) is arranged on the tool plate (1), and a pointer (13) is arranged on the sliding block (3), the novel pen holder is characterized in that the sliding block (3) is of a square block structure, a clamping pipe (14) is installed on one surface of the sliding block (3), a writing pen (15) is inserted into the clamping pipe (14), a supporting column (16) is installed on one surface of the supporting plate (4), a supporting bearing (17) is installed at the other end of the supporting column (16), and a fixed handle (18) is installed on the other surface of the supporting plate (4).

2. The apparatus of claim 1, wherein the circle drawing aid comprises: one side of the tool plate (1) is provided with a rotating handle (19).