CN210526137U

CN210526137U - Drawing device convenient for drawing four-line grids for teaching

Info

Publication number: CN210526137U
Application number: CN201920962492.0U
Authority: CN
Inventors: 翟竹
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-05-15
Anticipated expiration: 2029-06-25

Abstract

The utility model discloses a drawing device convenient to draw four line check for teaching, including first support column, connecting rod, line case and motor, the bottom of first support column is connected with first suction disc, and the top inboard of first support column is provided with first recess, install inside first recess at the both ends of connecting rod, the top alternate of line case has the telescopic link, and the surface of line case is provided with the connecting hole, the dust collection box sets up in the bottom of line case, and the top of dust collection box installs the dust collection case lid, the motor is installed in the inside of motor protective housing. This drawing device for teaching is convenient for draw four line check is provided with the telescopic link, and the telescopic link is provided with three groups, and its equidistance sets up between two sets of first support columns, and this kind of setting can make the distance between first support column and second support column increase through tensile telescopic link when using the device to the distance that the chalk in the messenger's rule case was drawn on the blackboard increases, has guaranteed the teaching quality.

Description

Drawing device convenient for drawing four-line grids for teaching

Technical Field

The utility model relates to a teaching aid technical field specifically is a drawing device of four line check of being convenient for is drawn with teaching.

Background

In the teaching is put to the tradition, the teacher can only rely on instruments such as check chi to draw four lines check, and four lines check require level and interval to equal, are difficult for drawing, need spend most of time drawing four lines check at the teaching in-process for teaching efficiency greatly reduced is unfavorable for teacher's teaching. Although the types and the number of drawing devices on the market are very large, most of the drawing devices have the problems that the drawing distance is limited, the drawing is inconvenient to carry out according to the length of chalk, and the length of the chalk cannot be effectively adjusted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drawing device of four line check of being convenient for is drawn to teaching to there is the drawing distance limited in the drawing device on the existing market that the solution above-mentioned background art provided, is not convenient for draw according to the length of chalk, can not the effectual problem of the length of adjusting the chalk.

In order to achieve the above object, the utility model provides a following technical scheme: a drawing device convenient for drawing four-line grids for teaching comprises a first support column, a connecting rod, a scribing box and a motor, wherein the bottom of the first support column is connected with a first suction disc, a first groove is formed in the inner side of the top of the first support column, two ends of the connecting rod are installed in the first groove, a telescopic rod is arranged on the right side of the inner portion of the first groove, the other end of the telescopic rod is arranged in a second groove, the second groove is installed in the inner side of the top of the second support column, a second suction disc is connected with the bottom of the second support column, a telescopic rod is inserted into the top of the scribing box, a connecting hole is formed in the surface of the scribing box, a placing plate is installed on the inner side of the bottom of the scribing box, an adjusting screw is inserted into the middle of the left side of the placing plate, a rubber pad is installed at the bottom of the adjusting screw, and, the dust collection box is arranged at the bottom of the scribing box, a dust collection box cover is installed at the top of the dust collection box, an air suction opening is formed in the bottom of the dust collection box, a motor protective shell is connected to the inside of the dust collection box, the motor is installed inside the motor protective shell, and the application end of the motor is connected with fan blades.

Preferably, the connecting rods are provided with two groups, and the two groups of middle parts of the connecting rods are connected with a group of telescopic rods.

Preferably, the three groups of telescopic rods are arranged in the whole, and the telescopic rods are arranged in the middle of the scribing box at equal intervals.

Preferably, the telescopic rod and the second support column are of a telescopic integrated structure, the telescopic rod and the first support column are of a sliding structure, and the sliding distance of the telescopic rod is the length of the first groove and the second groove (6).

Preferably, the placing plates are arranged in four groups, the placing plates are arranged in the scribing box at equal intervals, and the scribing box and the telescopic rod are of a sliding structure.

Preferably, the adjusting screw is in threaded connection with the placing plate, and the distance adjusted by the adjusting screw is the difference between the distances between the placing plate and the width of the chalk.

Compared with the prior art, the beneficial effects of the utility model are that: this drawing device of four line grids is drawn with being convenient for to teaching:

1. the device is provided with three groups of telescopic rods which are arranged between two groups of first supporting columns at equal intervals, and when the device is used, the distance between the first supporting columns and the second supporting columns is increased by stretching the telescopic rods, so that the distance drawn by chalks in the scribing box on a blackboard is increased, and the teaching quality is ensured;

2. the first groove and the second groove are respectively arranged inside the first supporting column and the second supporting column, so that the length of a chalk can be reduced when the chalk is used for scribing, the telescopic rod can move inside the groove according to the length of the chalk, and the chalk can still be used for drawing on a blackboard;

3. the chalk holder is provided with the adjusting screws, the adjusting screws are inserted in the middle of the placing plate in a penetrating mode, the rubber pads are arranged at the bottoms of the adjusting screws, when chalk is placed, the chalk position and the distance can be fixed and adjusted by adjusting the length of the adjusting screws, the rubber pads can effectively protect the chalk, the chalk is prevented from being damaged in the fixing process, and the flexibility of the chalk holder is guaranteed.

Drawings

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

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic side view of the scribing box of the present invention;

fig. 5 is a schematic view of the internal structure of the dust collecting box of the present invention.

In the figure: 1. the novel vacuum cleaner comprises a first supporting column, 2, a first sucker, 3, a first groove, 4, a connecting rod, 5, a telescopic rod, 6, a second groove, 7, a second supporting column, 8, a second sucker, 9, a scribing box, 10, a connecting hole, 11, a placing plate, 12, an adjusting screw, 13, a rubber pad, 14, chalk, 15, a dust collecting box, 16, a dust collecting box cover, 17, a motor protective shell, 18, a motor, 19, fan blades, 20 and an air suction opening.

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 invention provides a technical solution: a drawing device convenient for drawing four-line grids for teaching comprises a first support column 1, a first suction disc 2, a first groove 3, a connecting rod 4, a telescopic rod 5, a second groove 6, a second support column 7, a second suction disc 8, a scribing box 9, a connecting hole 10, a placing plate 11, an adjusting screw 12, a rubber pad 13, a chalk 14, a dust collecting box 15, a dust collecting box cover 16, a motor protecting shell 17, a motor 18, a fan blade 19 and an air suction opening 20, wherein the first suction disc 2 is connected to the bottom of the first support column 1, the suction disc 2 can effectively fix the device on a blackboard, the whole device is supported, the first groove 3 is arranged on the inner side of the top of the first support column 1, two ends of the connecting rod 4 are arranged in the first groove 3, the right side of the inner part of the first groove 3 is provided with the telescopic rod 5, the connecting rods 4 are provided with two groups, and the middle parts, the three groups of telescopic rods 5 are arranged in the middle of the scribing box 9 at equal intervals, the other end of each telescopic rod 5 is arranged inside the corresponding second groove 6, the corresponding second groove 6 is arranged on the inner side of the top of the corresponding second supporting column 7, the bottom of the corresponding second supporting column 7 is connected with a second sucker 8, the telescopic rods 5 and the corresponding second supporting columns 7 are of a telescopic integrated structure, the telescopic rods 5 and the corresponding first supporting columns 1 are of a sliding structure, the sliding distance of the telescopic rods 5 is the length of the corresponding first groove 3 and the length of the corresponding second groove 6, the length of chalk can be reduced when the chalk is scribed, the telescopic rods can move inside the grooves according to the length of the chalk, the chalk can still be used for painting on the blackboard, the distance between the first supporting columns and the second supporting columns is increased by stretching the telescopic rods, the distance drawn on the chalk in the scribing box is increased, the telescopic rods 5 are inserted into the tops of the scribing box 9, the chalk 14 is drawn on the blackboard by sliding the scribing box 9 on the telescopic rod 5, the surface of the scribing box 9 is provided with connecting holes 10, the connecting holes 10 are used for inserting the telescopic rod 5, the inner side of the bottom of the scribing box 9 is provided with a placing plate 11, the placing plate 11 is used for placing the chalk 14, the placing plates 11 are provided with four groups and are equidistantly arranged in the scribing box 9, the middle part of the left side of the placing plate 11 is inserted with an adjusting screw 12, the adjusting screw 12 can fix the chalk 14 and is convenient to detach and install the chalk 14, the bottom of the adjusting screw 12 is provided with a rubber pad 13, the other end of the rubber pad 13 is provided with the chalk 14, the rubber pad 13 can effectively protect the chalk 14 when the chalk 14 is fixed and prevent the chalk 14 from being damaged, the adjusting screw 12 is in threaded connection with the placing plate 11, and the distance that adjusting screw 12 was adjusted is for placing the difference of the distance of board 11 and chalk 14 width, dust collection box 15 sets up in the bottom of drawing case 9, dust collection box 15 collects the dust that the in-process produced of drawing, dust collection box cover 16 is installed at the top of dust collection box 15, dust collection box cover 16 can handle the dust in dust collection box 15, the bottom of dust collection box 15 is provided with suction opening 20, and the internal connection of dust collection box 15 has motor protective housing 17, motor protective housing 17 can protect motor 18, motor 18 installs in the inside of motor protective housing 17, and the application end of motor 18 is connected with flabellum 19, make flabellum 19 enter dust collection box 15 through suction opening 20 to the dust that the in-process produced of drawing through motor 18, the teaching quality has been guaranteed.

The working principle is as follows: when the drawing device convenient for drawing four-line lattices for teaching is used, firstly, chalk 14 is fixed in a placing plate 11 by adjusting an adjusting screw 12, the chalk 14 is protected by a rubber pad 13, after the chalk 14 is placed, a first supporting column is fixed on a blackboard through a first sucking disc 2, a second supporting column 7 is moved to a required length by stretching a telescopic rod 5, the second supporting column 7 is fixed on the blackboard through a second sucking disc 8, so that the whole device is fixed, after the fixing, the four-line lattices are drawn on the blackboard by the chalk 14 through moving a scribing box 9, the chalk 14 can reduce the length in the drawing process, the telescopic rod 5 moves in a first groove 3 and a second groove 6 according to the length change of the chalk 14, the situation that the four-line lattices are not drawn due to insufficient length of the chalk 14 in the drawing process is prevented, and the chalk 14 can fall off dust on the blackboard in the drawing process, when the motor 18 is started, the fan blade 19 starts to rotate, and the falling dust is sucked through the suction opening 20, so that the dust enters the dust box 15, and after the drawing is finished, the dust box cover 16 is opened to process the dust in the dust box 15. This is the operation flow of the drawing device for teaching to draw four-line grids, and the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a drawing device of four line check of being convenient for is drawn in teaching, includes first support column (1) connecting rod (4), rule case (9), dust collection box (15) and motor (18), its characterized in that: the bottom of the first supporting column (1) is connected with a first sucker (2), a first groove (3) is formed in the inner side of the top of the first supporting column (1), two ends of a connecting rod (4) are installed in the first groove (3), a telescopic rod (5) is arranged on the right side of the inner portion of the first groove (3), the other end of the telescopic rod (5) is arranged in a second groove (6), the second groove (6) is installed in the inner side of the top of the second supporting column (7), a second sucker (8) is connected to the bottom of the second supporting column (7), the telescopic rod (5) is inserted into the top of the scribing box (9), a connecting hole (10) is formed in the surface of the scribing box (9), a placing plate (11) is installed on the inner side of the bottom of the scribing box (9), and an adjusting screw (12) is inserted into the middle of the left side of the placing plate (11), rubber pad (13) are installed to the bottom of adjusting screw (12), and chalk (14) are installed to the other end of rubber pad (13), dust collection box (15) set up in the bottom of marking line case (9), and dust collection box lid (16) are installed at the top of dust collection box (15), the bottom of dust collection box (15) is provided with suction opening (20), and the internal connection of dust collection box (15) has motor protective housing (17), motor (18) are installed in the inside of motor protective housing (17), and the application end of motor (18) is connected with flabellum (19).

2. The drawing device for teaching convenient drawing four-line grid according to claim 1, wherein: the connecting rods (4) are provided with two groups, and the two groups of middle parts of the connecting rods (4) are connected with a group of telescopic rods (5).

3. The drawing device for teaching convenient drawing four-line grid according to claim 1, wherein: the three groups of the telescopic rods (5) are arranged at the middle part of the scribing box (9) at equal intervals.

4. The drawing device for teaching convenient drawing four-line grid according to claim 1, wherein: the telescopic rod (5) and the second supporting column (7) are of a telescopic integrated structure, the telescopic rod (5) and the first supporting column (1) are of a sliding structure, and the sliding distance of the telescopic rod (5) is the length of the first groove (3) and the length of the second groove (6).

5. The drawing device for teaching convenient drawing four-line grid according to claim 1, wherein: the placing plates (11) are provided with four groups in all, the four groups are arranged in the scribing box (9) at equal intervals, and the scribing box (9) and the telescopic rod (5) are of a sliding structure.

6. The drawing device for teaching convenient drawing four-line grid according to claim 1, wherein: the adjusting screw (12) is in threaded connection with the placing plate (11), and the adjusting distance of the adjusting screw (12) is the difference of the width distances between the placing plate (11) and the chalks (14).