CN213282015U

CN213282015U - Drawing board

Info

Publication number: CN213282015U
Application number: CN202021063671.XU
Authority: CN
Inventors: 刘雨萱
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-05-28
Anticipated expiration: 2030-06-10

Abstract

The utility model discloses a drawing board, which comprises two vertical plates, the left side surface of the right side vertical plate is rotatably connected with a screw rod through a bearing, the left end of the screw rod penetrates and extends to the left side surface of the vertical plate, the outer surface thread of the screw rod is connected with a thread slider, the top end of the left side vertical plate is hinged with a drawing board, the lower surface of the drawing board is provided with a first chute, the inner part of the first chute is slidably connected with a first slider, a support rod is hinged between the first slider and the thread slider, the upper surface of the drawing board is fixedly connected with a baffle, the inner part of the drawing board is provided with a groove, the inner part of the groove is provided with a pressure rod in an inserting way, the bottom end of the pressure rod is fixedly connected with a triangular plate, the upper surface of the drawing board is provided with drawing paper, and the device can adjust the angle of, meanwhile, the drawing paper is convenient to replace and fix.

Description

Drawing board

Technical Field

The utility model relates to a teaching aid technical field specifically is a drawing board.

Background

Economics is the theory of the laws of production, circulation, distribution, and consumption that explores value. The economic research object and the natural science and social science research object are the same objective rule. Economics is a subject, an organic whole, and a science for researching various economic activities and various corresponding economic relations and operation and development laws of human society in various development stages. The core idea of economics is material scarcity and efficient utilization of resources. In economic research, various data tables and curves are required to be drawn frequently, and the data tables and curves are important auxiliary means of the economic research, so the accuracy of drawing the data tables and curves directly influences the accuracy of the economic research.

Chinese patent discloses a special drawing board of economics (grant publication No. CN 204249656U), the drawing instrument that this patent technique can solve commonly used in economics is simple set-square, compasses and ruler, efficiency is very low when drawing the data curve, and the accuracy is poor, influence the problem of analysis and computational result, but do not possess the regulation that carries out the angle to the drawing board, it is inconvenient to lead to the use, and drawing board in the reality is not fixed to drawing paper, lead to causing the incompleteness of drawing at drawing paper at the easy extrusion deformation of user. Accordingly, one skilled in the art provides a drawing board to solve the problems set forth in the background art described above.

Disclosure of Invention

An object of the utility model is to provide a drawing board to solve the problem that proposes among the above-mentioned background art.

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

the utility model provides a drawing board, includes two risers, the right side the left surface of riser is rotated through the bearing and is connected with the lead screw, the left end of lead screw runs through and extends to the left side the left surface of riser, the surface threaded connection of lead screw has the screw thread slider, the left side the top of riser articulates there is the drawing board, first spout has been seted up to the lower surface of drawing board, the inside sliding connection of first spout has first slider, first slider with it has the bracing piece to articulate between the screw thread slider, the last fixed surface of drawing board is connected with the baffle, the inside of drawing board is seted up flutedly, the inside interlude of recess is provided with the depression bar, the bottom fixedly connected with set-square of depression bar, the inner wall fixedly connected with second telescopic link of recess, the upper surface of drawing board is provided with drawing paper.

As a further aspect of the present invention: two diaphragms of fixedly connected with between the riser, two the lower surface movable mounting of riser has the universal wheel.

As a further aspect of the present invention: the left end fixedly connected with hand wheel of lead screw, the surface cover of hand wheel is equipped with the sponge cover.

As a further aspect of the present invention: the top fixedly connected with briquetting of depression bar, the surface of briquetting is provided with anti-skidding line, the first telescopic link of lower fixed surface of briquetting is connected with, the surface cover of first telescopic link is equipped with first spring, first telescopic link is kept away from the one end fixedly connected with clamp plate of briquetting.

As a further aspect of the present invention: the inner wall of the groove is provided with a second sliding groove, a second sliding block is connected to the inner portion of the second sliding groove in a sliding mode, and the second sliding block is fixedly connected with the triangular plate.

As a further aspect of the present invention: the surface cover of second telescopic link is equipped with the second spring, the second telescopic link is kept away from one side fixedly connected with wedge of recess, the wedge with the set-square is identical.

As a further aspect of the present invention: the inside interlude of recess is provided with wire rope, wire rope's one end fixed connection be in the surface of wedge, wire rope's one end fixedly connected with draws the piece, draw the piece to be located the surface of drawing board.

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

1. the left end through at the lead screw is provided with the hand wheel, rotates the hand wheel and has driven the lead screw and rotate, carries on spacingly through bracing piece and drawing board, makes the screw thread slider can remove about the surface of lead screw, and then can adjust the angle of drawing board, is fit for using with the user of different heights, simple structure, and the practicality is strong.

2. Set up flutedly through the inside at the drawing board, it is provided with the depression bar to alternate at the upper surface of recess, press the depression bar, first telescopic link and first spring downstream have been driven, until extrude drawing paper spacing, prevent that drawing paper aversion from causing the deformation, the effectual drawing paper that has protected, the set-square downstream has been driven when the depression bar downstream, and then extrude the wedge, make wedge lateral shifting, the one end of until the set-square removes to the below of wedge, at this moment, control through the elasticity of second spring, bounce the wedge rapidly, it is spacing to carry out the set-square, stop pressing the depression bar, and then can measure the depression bar and fix.

3. The drawing block is pulled outwards to stimulate, has driven wire rope and has outwards removed, and then has driven the wedge and has removed until separating with the set-square, and through the elasticity of first spring this moment, the briquetting elasticity that makes progress has driven the depression bar and outwards has removed rapidly, and then is convenient for change drawing paper, easy operation, it is more convenient to use.

Drawings

Fig. 1 is a schematic structural diagram of a drawing board.

Fig. 2 is an enlarged view of a structure a in fig. 1 in a drawing board.

Fig. 3 is a schematic top view of a drawing board.

In the figure: 1. a vertical plate; 2. a universal wheel; 3. a transverse plate; 4. a screw rod; 5. a hand wheel; 6. a threaded slider; 7. drawing boards; 8. a first chute; 9. a first slider; 10. a support bar; 11. a baffle plate; 12. a groove; 13. a pressure lever; 14. briquetting; 15. a first telescopic rod; 16. a first spring; 17. pressing a plate; 18. a set square; 19. a second chute; 20. a second slider; 21. a second telescopic rod; 22. a second spring; 23. a wedge plate; 24. a wire rope; 25. pulling the block; 26. and (5) drawing paper.

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.

Please refer to fig. 1-3, in the embodiment of the utility model, a drawing board, including two risers 1, the left surface of right side riser 1 is rotated through the bearing and is connected with lead screw 4, the left end of lead screw 4 runs through and extends to the left surface of left side riser 1, the surface threaded connection of lead screw 4 has screw slider 6, the top of left side riser 1 articulates there is drawing board 7, first spout 8 has been seted up to the lower surface of drawing board 7, the inside sliding connection of first spout 8 has first slider 9, it has bracing piece 10 to articulate between first slider 9 and the screw slider 6, the last fixed surface of drawing board 7 is connected with baffle 11, recess 12 has been seted up to the inside of drawing board 7, the inside interlude of recess 12 is provided with depression bar 13, the bottom fixedly connected with set-square 18 of depression bar 13, the inner wall fixedly connected with second telescopic link 21 of recess 12, the upper surface of drawing board 7 is provided.

Specifically, two diaphragms 3 of fixedly connected with between two risers 1, the lower surface movable mounting of two risers 1 has universal wheel 2, is convenient for make between two risers 1 more stable through diaphragm 3's effect, makes this device possess fine mobility through setting up of universal wheel 2 simultaneously, and then improves the practicality.

Specifically, the left end of the screw rod 4 is fixedly connected with a hand wheel 5, and the outer surface of the hand wheel 5 is sleeved with a sponge sleeve, so that the screw rod 4 can be conveniently rotated, and comfort is provided for hands.

Specifically, the top fixedly connected with briquetting 14 of depression bar 13, the surface of briquetting 14 is provided with anti-skidding line, the first telescopic link 15 of lower fixed surface of briquetting 14, the surface cover of first telescopic link 15 is equipped with first spring 16, the one end fixedly connected with clamp plate 17 of briquetting 14 is kept away from to first telescopic link 15, through the effect of first spring 16, be convenient for extrude drawing paper 26, and then play fixed effect to drawing paper 26, prevent that drawing paper 26 from warping.

Specifically, the inner wall of the groove 12 is provided with a second sliding groove 19, the second sliding groove 19 is connected with a second sliding block 20 in a sliding mode, the second sliding block 20 is fixedly connected with the triangular plate 18, the limiting effect is achieved, and the pressing rod 13 can stably move up and down.

Specifically, the surface cover of second telescopic link 21 is equipped with second spring 22, and one side fixedly connected with wedge 23 that recess 12 was kept away from to second telescopic link 21, and wedge 23 and set-square 18 are identical, through pressing down depression bar 13, have driven set-square 18 downstream, and then extrude wedge 23, until removing the below of wedge 23, wedge 23 can carry out spacing fixed to set-square 18, and then carry out spacing fixed to drawing paper 26.

Specifically, the inside interlude of recess 12 is provided with wire rope 24, and wire rope 24's one end fixed connection is at the surface of wedge plate 23, and wire rope 24's one end fixedly connected with draws piece 25, draws the piece 25 to be located the surface of drawing board 7, is convenient for outwards stimulate wire rope 24.

The utility model discloses a theory of operation is: before the device is used, the safety of the device is checked, after the drawing paper 26 is placed above the drawing board 7, the hand wheel 5 is arranged at the left end of the screw rod 4, the screw rod 4 is driven to rotate by rotating the hand wheel 5, the limiting is carried out by the support rod 10 and the drawing board 7, the threaded slide block 6 can move left and right on the outer surface of the screw rod 4, and further the angle of the drawing board 7 can be adjusted, so that the device is suitable for being used by users with different heights, the structure is simple, the practicability is high, the groove 12 is formed in the drawing board 7, the pressure rod 13 is arranged on the upper surface of the groove 12 in an inserting mode, the pressure rod 13 is pressed, the first telescopic rod 15 and the first spring 16 are driven to move downwards until the drawing paper 26 is extruded and limited, the deformation caused by the displacement of the drawing paper is prevented, the drawing paper is effectively protected, the triangular plate 18 is driven to move downwards when the, make wedge 23 lateral shifting, the below of wedge 23 is removed to the one end until set-square 18, this moment through about second spring 22's elasticity, bounce wedge 23 rapidly, it is spacing to set-square 18, stop pressing down depression bar 13, and then can measure depression bar 13 and fix, when the drawing paper needs to be changed, outside pulling block 25, wire rope 24 outwards removed has been driven, and then wedge 23 has been driven and has been removed until separating with set-square 18, this moment through first spring 16's elasticity, with 14 upwards elasticity of briquetting rapidly, depression bar 13 outwards removed has been driven, and then be convenient for change drawing paper 26, and the operation is thus simple, it is more convenient to use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A drawing board comprises two vertical plates (1) and is characterized in that a lead screw (4) is rotatably connected to the left side surface of the vertical plate (1) on the right side through a bearing, the left end of the lead screw (4) penetrates through and extends to the left side surface of the vertical plate (1) on the left side, a threaded slider (6) is connected to the outer surface of the lead screw (4), a drawing board (7) is hinged to the top end of the vertical plate (1) on the left side, a first sliding groove (8) is formed in the lower surface of the drawing board (7), a first slider (9) is connected to the inside of the first sliding groove (8) in a sliding manner, a supporting rod (10) is hinged between the first slider (9) and the threaded slider (6), a baffle (11) is fixedly connected to the upper surface of the drawing board (7), a groove (12) is formed in the drawing board (7), and a pressing rod (13) is arranged, the bottom fixedly connected with set-square (18) of depression bar (13), the inner wall fixedly connected with second telescopic link (21) of recess (12), the upper surface of drawing board (7) is provided with drawing paper (26).

2. A drawing board according to claim 1, characterised in that two transverse plates (3) are fixedly connected between the two vertical plates (1), and universal wheels (2) are movably mounted on the lower surfaces of the two vertical plates (1).

3. A drawing board according to claim 1, characterised in that a hand wheel (5) is fixedly connected to the left end of the screw (4), and a sponge sleeve is sleeved on the outer surface of the hand wheel (5).

4. The drawing board according to claim 1, characterized in that a pressing block (14) is fixedly connected to the top end of the pressing rod (13), anti-skid patterns are arranged on the outer surface of the pressing block (14), a first telescopic rod (15) is fixedly connected to the lower surface of the pressing block (14), a first spring (16) is sleeved on the outer surface of the first telescopic rod (15), and a pressing plate (17) is fixedly connected to one end, away from the pressing block (14), of the first telescopic rod (15).

5. The drawing board according to claim 1, wherein the inner wall of the groove (12) is provided with a second sliding groove (19), a second sliding block (20) is slidably connected inside the second sliding groove (19), and the second sliding block (20) is fixedly connected with the triangular plate (18).

6. A drawing board according to claim 1, characterized in that the outer surface of the second telescopic rod (21) is sleeved with a second spring (22), a wedge-shaped plate (23) is fixedly connected to the side of the second telescopic rod (21) far away from the groove (12), and the wedge-shaped plate (23) is matched with the triangle (18).

7. A drawing board according to claim 6, characterized in that a steel wire rope (24) is inserted into the groove (12), one end of the steel wire rope (24) is fixedly connected to the outer surface of the wedge-shaped plate (23), one end of the steel wire rope (24) is fixedly connected with a pulling block (25), and the pulling block (25) is located on the outer surface of the drawing board (7).