CN211617237U

CN211617237U - Mathematics drawing tool

Info

Publication number: CN211617237U
Application number: CN202020028452.1U
Authority: CN
Inventors: 陈晓宇; 李孝鹏
Original assignee: Zhejiang Normal University CJNU
Current assignee: Zhejiang Normal University CJNU
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-10-02
Anticipated expiration: 2030-01-06

Abstract

The utility model discloses a mathematics graphics primitive, including drawing mechanism and telescopic machanism, draw the mechanism including the graphics primitive slide bar, the trompil has been seted up to surface one side of graphics primitive slide bar, the inner wall surface of trompil is provided with straight board, one side of straight board is connected with the fagging, the opposite side of straight board is connected with draws the handle, the second recess has been seted up at the middle part of the surface of straight board, draw the surface of handle and seted up first recess, the spring groove has been seted up for the inner wall surface of trompil to the second recess, the inner wall surface in spring groove is connected with first spring, and its technical scheme main points are: through the mechanism of pulling at slide bar surface design for when main stay bar and the firm joint of slide bar, can directly pop out and pull the handle, can carry and hang up, can save to its inside when the instrument is used simultaneously, do not receive any influence to drawing during operation, make the shrink convenient, increased its practicality.

Description

Mathematics drawing tool

Technical Field

The utility model belongs to mathematics graphics primitive field, concretely relates to mathematics graphics primitive.

Background

The drawing tool is a simple tool for drawing figures, the drawing tool is frequently required to be used in the teaching process, the drawing tool is generally light in weight, easy to carry and simple in structure, and a ruler and compasses are commonly used by teachers as the drawing tool in mathematical teaching.

Chinese patent for CN201822130758.3, it discloses high school mathematics is with multi-functional graphics primitive, including well core rod, well core rod's one side is rotated through the pivot and is connected with the painted rod, thread groove has been seted up to the inside of painted rod, and the one end of painted rod installs the fixed cover of chalk, the third screw rod is installed to the one end of the fixed cover of chalk, and chalk splint are installed to the other end, the fourth screw rod is installed to one side of chalk splint, the china ink pen installation cover is installed to one side of painted rod, the second screw rod is installed to the one end of china ink pen installation cover, and the china ink pen jacket is installed to the other end.

The multifunctional drawing tool for mathematics has the advantages of simple and exquisite structure; however, when the drawing tool is carried and stored, the object is convenient to carry due to the handle, so that the drawing tool is inconvenient to carry, and meanwhile, when the tool is used and the main supporting rod is fixed in position, the sliding rod is overlarge in size, so that the main supporting rod can slide, the main supporting rod can incline, the central point can deviate, and the drawing accuracy is affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mathematics graphics primitive to the drawing work who proposes in solving above-mentioned background art is not convenient for carry simultaneously when slide bar size and main stay bar are inconsistent, and the main stay bar needs the slope just can operate, influences drawing degree of accuracy and accurate problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a mathematics graphics primitive, is including drawing mechanism and telescopic machanism, draw the mechanism including drawing instrument slide bar, the trompil has been seted up to surface one side of drawing instrument slide bar, the inner wall surface of trompil is provided with straight board, one side of straight board is connected with the fagging, the opposite side of straight board is connected with draws the handle, the second recess has been seted up at the surperficial middle part of straight board, draw the surface of handle and seted up first recess, the spring groove has been seted up for the inner wall surface of trompil to the second recess, the inner wall surface in spring groove is connected with first spring, the opposite side surface of first spring is connected with the slider, a side fixed surface of slider is connected with and supports the board.

Preferably, it is characterized in that: the telescopic mechanism comprises a tool main supporting rod, an inner hole is formed in the tool main supporting rod, a groove is formed in the inner wall of the inner hole relative to the tool main supporting rod, a top block is arranged on the surface of the inner wall of the groove, protruding blocks are arranged on the surfaces of the two sides of the top block, a tool front rod is arranged on the lower surface of the tool main supporting rod, a fixing groove is formed in the surface of the tool front rod, a second spring is connected to the surface of the inner wall of the fixing groove, and a stop block is connected to the other side of the second spring.

Preferably, one side surface of the supporting plate and the inner wall of the opening are of a clamping structure, and the straight plate penetrates through the surface of the inner wall of the opening and is fixedly connected to one side surface of the pull handle.

Preferably, one side of the first spring is fixedly connected with the inner wall of the spring groove, and the other side of the first spring is fixedly connected with the surface of the sliding block.

Preferably, the outer surface of the sliding block is in sliding connection with one side surface of the spring groove, and the top end surface of the abutting plate is in clamping connection with the second groove.

Preferably, one side of the second spring is fixedly connected with the inner wall surface of the fixing groove, and the other side of the second spring is fixedly connected with the stop block.

Preferably, one side surface of the stopper is in clamping connection with the surface of the inner wall of the groove, and one side of the stopper is arranged close to the surface of the top block.

Preferably, the number of the fixing grooves is two, the fixing grooves are arranged on two sides of the surface of the front rod of the tool, the number of the grooves is eight, and the grooves are equidistantly distributed on two sides of the surface of the main supporting rod of the tool.

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

(1) through the mechanism of pulling at slide bar surface design for when main stay bar and the firm joint of slide bar, can directly pop out and pull the handle, can carry and hang up, can save to its inside when the instrument is used simultaneously, do not receive any influence to drawing during operation, make the shrink convenient, increased its practicality.

(2) Through the telescopic machanism of design, can be when the operation of drawing, when the size of main stay bar is greater than the slide bar, the free side to the side is adjusted, and when main stay bar is less than the slide bar and can adjust to the outside, and then keep main stay bar perpendicular to drawing surface, the slide bar moves, has improved the precision of drawing

Drawings

FIG. 1 is a schematic diagram of a mathematical drawing tool according to the present invention;

FIG. 2 is a side view of the structure of the mathematical plotting tool of the present invention;

fig. 3 is an enlarged schematic structural view of a point a in fig. 2 according to the present invention;

fig. 4 is a sectional view of the main stay bar connecting structure of the present invention;

fig. 5 is an enlarged schematic structural diagram of the position B in fig. 4 according to the present invention.

Description of the reference numerals

1. A drawing tool slide bar; 2. a tool main stay bar; 3. a tool front bar; 4. opening a hole; 5. a supporting plate; 6. a straight plate; 7. pulling a handle; 8. a first groove; 9. a spring slot; 10. a first spring; 11. a slider; 12. a resisting plate; 13. a second groove; 14. an inner hole; 15. grooving; 16. a top block; 17. a bump; 18. fixing grooves; 19. a second spring; 20. a stop block.

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 mathematical drawing tool, wherein the technical solution is as follows: the utility model provides a mathematics graphics primitive, including drawing mechanism and telescopic machanism, draw the mechanism including drawing instrument slide bar 1, trompil 4 has been seted up to drawing instrument slide bar 1's surface one side, the inner wall surface of trompil 4 is provided with straight board 6, one side of straight board 6 is connected with fagging 5, the opposite side of straight board 6 is connected with draws 7, second recess 13 has been seted up at the middle part of the surface of straight board 6, draw and seted up first recess 8 to 7's surface, second recess 13 has seted up spring groove 9 for the inner wall surface of trompil 4, the inner wall surface of spring groove 9 is connected with first spring 10, the opposite side surface of first spring 10 is connected with slider 11, a side fixed surface of slider 11 is connected with and supports board 12.

In this embodiment, preferably, the telescopic mechanism includes a tool main supporting rod 2, an inner hole 14 is formed inside the tool main supporting rod 2, a slot 15 is formed in an inner wall of the inner hole 14 relative to the tool main supporting rod 2, a top block 16 is arranged on a surface of the inner wall of the slot 15, protruding blocks 17 are formed on surfaces of two sides of the top block 16, a tool front rod 3 is arranged on a lower surface of the tool main supporting rod 2, a fixing slot 18 is formed on a surface of the tool front rod 3, a second spring 19 is connected to a surface of an inner wall of the fixing slot 18, and a stopper 20 is connected to the other side of the.

In this embodiment, preferably, a side surface of the supporting plate 5 and an inner wall of the opening 4 are in a snap-fit structure, and the straight plate 6 penetrates through the inner wall surface of the opening 4 and is fixedly connected to a side surface of the pull handle 7.

In this embodiment, preferably, one side of the first spring 10 is fixedly connected to the inner wall of the spring slot 9, and the other side of the first spring 10 is fixedly connected to the surface of the slider 11.

In this embodiment, preferably, the outer surface of the slider 11 is slidably connected to one side surface of the spring slot 9, and the top end surface of the abutting plate 12 is connected to the second groove 13 in a snap-fit manner.

In this embodiment, preferably, one side of the second spring 19 is fixedly connected to the inner wall surface of the fixing groove 18, and the other side of the second spring 19 is fixedly connected to the stopper 20.

In this embodiment, preferably, a side surface of the stopper 20 is engaged with an inner wall surface of the slot 15, and a side of the stopper 20 is disposed to be closely attached to a surface of the top block 16.

In this embodiment, it is preferable that the number of the fixing grooves 18 is two, the fixing grooves 18 are disposed on both sides of the surface of the tool front bar 3, the number of the slots 15 is eight, and the slots 15 are disposed on both sides of the surface of the tool main stay 2 at equal intervals.

The utility model discloses a theory of operation and use flow: after the device is accomplished, pull back pole 3 before the instrument and prepare work, later slide block 11, thereby compress first spring 10, make and support board 12 and break away from the inside of second recess 13, later press and draw 7, make and draw the first recess 8 of 7 one side and aim at and support board 12 surface, and then the block is connected, make and draw the inside of being in drawing instrument slide bar 1 of mechanism and deposit, after waiting to draw the completion, slide block 11, make and support board 12 break away from the inner wall of first recess 8, again through withdrawing of instrument front rod 3, extrude fagging 5, make and support board 12 and aim at second recess 13 inside and carry out the block and fix, can directly take and draw 7 and carry, the structure is simple and convenient, and convenient to carry, the problem of unsmooth difficult carrying of surface and depositing is solved.

When drawing, because the required drawing radius is great, when drawing instrument slide bar 1 is greater than instrument main stay bar 2, can press ejector pad 16, contradict the surface of backstop 20, compress second spring 19, then can outwards adjust the distance of instrument front boom 3, fastening connection is carried out in the elasticity that has second spring 19, when the size that drawing instrument slide bar 1 is less than instrument main stay bar 2 needs to be adjusted, continue to press ejector pad 16, operate, when can freely regulate and control the distance, the area that is suitable for the drawing and then the expansion, the single characteristics of old-fashioned instrument have been solved.

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 mathematics drawing tool, includes and draws a mechanism and telescopic machanism, draw a mechanism including drawing tool slide bar (1), its characterized in that, drawing tool slide bar (1) surface one side seted up trompil (4), the inner wall surface of trompil (4) is provided with straight board (6), one side of straight board (6) is connected with fagging (5), the opposite side of straight board (6) is connected with draws a (7), the surperficial middle part of straight board (6) has seted up second recess (13), the surface of drawing a (7) has seted up first recess (8), second recess (13) have seted up spring groove (9) for the inner wall surface of trompil (4), the inner wall surface of spring groove (9) is connected with first spring (10), the opposite side surface of first spring (10) is connected with slider (11), and a pressing plate (12) is fixedly connected to the surface of one side of the sliding block (11).

2. The mathematical drawing tool according to claim 1, wherein the telescopic mechanism comprises a main tool supporting rod (2), an inner hole (14) is formed in the main tool supporting rod (2), a slot (15) is formed in the inner wall of the inner hole (14) relative to the main tool supporting rod (2), a top block (16) is arranged on the inner wall surface of the slot (15), protruding blocks (17) are arranged on the two side surfaces of the top block (16), a front tool rod (3) is arranged on the lower surface of the main tool supporting rod (2), a fixing slot (18) is formed in the surface of the front tool rod (3), a second spring (19) is connected to the inner wall surface of the fixing slot (18), and a stopper (20) is connected to the other side of the second spring (19).

3. The mathematical drawing tool as claimed in claim 1, wherein a side surface of the supporting plate (5) and an inner wall of the opening (4) are of a snap structure, and the straight plate (6) penetrates through the inner wall surface of the opening (4) and is fixedly connected to a side surface of the pull handle (7).

4. Mathematical drawing tool according to claim 1, characterised in that one side of the first spring (10) is fixedly connected to the inner wall of the spring groove (9) and the other side of the first spring (10) is fixedly connected to the surface of the slide (11).

5. The mathematical drawing tool as claimed in claim 1, wherein the outer surface of the sliding block (11) is slidably connected with one side surface of the spring groove (9), and the top end surface of the abutting plate (12) is in snap connection with the second groove (13).

6. The mathematical plotting tool of claim 2, wherein one side of the second spring (19) is fixedly connected to the inner wall surface of the fixing groove (18), and the other side of the second spring (19) is fixedly connected to the stopper (20).

7. The mathematical drawing tool according to claim 2 or 6, wherein one side surface of the stopper (20) is in snap-fit connection with the inner wall surface of the slot (15), and one side of the stopper (20) is arranged to be tightly attached to the surface of the top block (16).

8. The mathematical drawing tool according to claim 2, wherein the number of the fixing grooves (18) is two, the fixing grooves (18) are arranged on two sides of the surface of the tool front rod (3), the number of the slots (15) is eight, and the slots (15) are distributed on two sides of the surface of the tool main supporting rod (2) at equal intervals.