CN113080639B

CN113080639B - Multifunctional drawing equipment

Info

Publication number: CN113080639B
Application number: CN202110384652.XA
Authority: CN
Inventors: 黎娅; 胡斌斌
Original assignee: Chongqing College of Electronic Engineering
Current assignee: Chongqing College of Electronic Engineering
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2022-11-18
Anticipated expiration: 2041-04-09
Also published as: CN113080639A

Abstract

The invention relates to the field of drawing, in particular to a multifunctional drawing device, which comprises a base, a seat and a supporting roller, wherein the supporting roller is used for supporting paper; the seat is positioned on the base, the supporting roll is vertically arranged, the bottom end of the supporting roll is rotatably connected to the base, and the seat and the supporting roll are oppositely arranged; the edge of the bottom of the supporting roll is provided with a limiting part for abutting against the bottom end of the paper, and the supporting roll is provided with a fixing part for fixing the paper on the circumferential side surface of the supporting roll. This scheme is convenient for draw longer picture of length.

Description

Multifunctional drawing equipment

Technical Field

The invention relates to the field of drawing, in particular to multifunctional drawing equipment.

Background

Drawing is an essential basic capability for students in the art design profession. The drawing equipment that uses when drawing at present is the draft holder, is equipped with the backup pad of drawing usefulness on the draft holder, and the paper is put in the backup pad, and the backup pad supports fixedly to the paper, and the handheld painting brush of drawing personnel is carried out drawing on the paper.

But the volume of present backup pad is less, and the length of backup pad is less, can not fix great paper in the backup pad, consequently uses present draft holder students can't draw whole jumbo picture, when drawing jumbo picture again, students can only draw the less picture of a plurality of areas earlier, then splices the less picture of area again to form the great jumbo picture of area, owing to need the concatenation, the complex operation is more loaded down with trivial details.

Even if the length of backup pad is enough long, the volume is enough big, can support great paper fixedly, thereby make the student can draw huge width of cloth and draw, but when the length of backup pad is great, the student need continuous change the position of oneself when drawing in order to draw in the position of the difference of backup pad, perhaps the student is when the drawing in the position of the difference of backup pad, because the drawing position of drawing instrument and paper is not in same position, so need make a round trip to move in order to take corresponding drawing instrument, also very trouble like this.

Disclosure of Invention

The invention aims to provide a multifunctional drawing device which is convenient for drawing a picture with a long length.

In order to achieve the purpose, the invention adopts the following technical scheme: a multifunctional drawing device comprises a base, a seat and a supporting roller for supporting paper; the seat is positioned on the base, the supporting roll is vertically arranged, the bottom end of the supporting roll is rotatably connected to the base, and the seat and the supporting roll are oppositely arranged; the edge of the bottom of the supporting roll is provided with a limiting part for abutting against the bottom end of the paper, and the supporting roll is provided with a fixing part for fixing the paper on the circumferential side surface of the supporting roll.

The principle and the advantages of the scheme are as follows: when drawing, the user can sit on the chair. The supporting roller is used for supporting the paper, attaching the paper to the circumferential side face of the supporting roller, and then fixing the two end portions of the paper by using the fixing pieces, so that the paper can be prevented from falling off from the supporting roller. The limiting part at the bottom of the supporting roller is used for abutting against the bottom of the vertical paper, so that the paper can be prevented from sliding downwards on the supporting roller. When drawing, the person of drawing sits and draws on the seat, when needs are drawn to the different positions of paper, rotates the backing roll, and the backing roll takes place to rotate and drives the paper removal to make the different positions of paper relative with the person of drawing, the person of drawing like this can be drawn at the different positions on the paper.

Through this scheme, can realize through rotating the backing roll that different positions of paper are relative with the plotter, like this when the longer picture of drawing length, the plotter need not to make a round trip to walk around in order to adapt to longer paper, the plotter directly can put the drawing instrument on the next door of seat, the plotter need not to make a round trip to walk around in order to take the drawing instrument, the change of paper position can be realized through rotating the backing roll to the plotter, the plotter only need sit on the position of seat can, easy operation is convenient.

The structure that supports the paper in this scheme is the backing roll, compare the great rectangular backup pad of length among the prior art, under the same condition of length of girth and backup pad of backing roll (the biggest length of paper that backing roll and backup pad can be placed this moment equals), the diameter of backing roll is less than the length of backup pad, the backing roll can be placed in narrower space (the width in space needs to be greater than the diameter of backing roll but is less than the length of backup pad) like this, thereby the person of drawing of being convenient for can place this equipment in comparatively narrow space and draw.

Preferably, as an improvement, the base is rotatably connected with a first vertical shaft and a second vertical shaft which are vertical, a hand wheel close to the seat is fixedly arranged at the top end of the first vertical shaft, and the second vertical shaft is coaxially and fixedly connected with the supporting roll; the first vertical shaft is coaxially and fixedly connected with a first chain wheel, the second vertical shaft is coaxially and fixedly connected with a second chain wheel, and a chain is connected between the first chain wheel and the second chain wheel. Therefore, a plotter sits on the seat, rotates the hand wheel, drives the first vertical shaft to rotate, drives the first chain wheel to rotate through the first vertical shaft, drives the second chain wheel to rotate through the chain, and drives the second vertical shaft to rotate through the second chain wheel, so that the supporting roller is driven to rotate. Through the scheme, the hands of the plotter do not need to directly touch the supporting roller to realize the driving of the rotation of the supporting roller, and the phenomenon that the hands of the plotter are polluted by the patterns on the paper on the supporting roller or the paper on the supporting roller is polluted by the hands of the plotter is avoided.

Preferably, as an improvement, an annular cavity is arranged inside the hand wheel, a plurality of air bags which are uniformly distributed on the circumference are arranged in the cavity, a plurality of pressing blocks radially slide on the inner wall of the hand wheel, the plurality of pressing blocks are uniformly distributed on the circumference of the hand wheel, and the pressing blocks are opposite to and abutted against the air bags; the inner part of the first vertical shaft is vertically and movably connected with a sliding plate, the sliding plate is fixedly connected with a vertical rod, the bottom of the vertical rod is fixedly provided with a latch positioned outside the first vertical shaft, the inner part of the first vertical shaft is provided with a piston cavity, a plurality of air bags are communicated with the piston cavity, the piston cavity is internally and slidably connected with a piston, the piston is fixedly connected with a piston rod, the sliding plate is fixedly connected with the piston rod, and the sliding plate is connected with an elastic part; fixedly connected with annular snap ring on the base is equipped with the tooth that a plurality of annulars distribute on the snap ring, and latch and snap ring card are in the same place.

This scheme is passed through latch and the tooth card on the snap ring and is in the same place to can avoid the automatic rotation of first vertical axis, the second vertical axis just can not the free rotation just like this, has avoided the automatic rotation of backing roll, has guaranteed that the person of drawing is in static stable state when the drawing backing roll.

When needs make the backing roll rotate, the hand wheel can be rotated to the person's of drawing hand, the person's of drawing hand is held on the hand wheel this moment, the hand is pressed according to the briquetting, according to the radial slip of briquetting along the hand wheel, the briquetting is extruded to the gasbag according to what hold, in the extruded gasbag enters into the piston chamber, atmospheric pressure grow in the piston chamber, gas promotion piston in the piston chamber removes, the piston passes through the piston rod and drives the sliding plate and remove, the sliding plate makes the elastic component take place deformation and hold power, the sliding plate drives montant rebound, the montant drives latch rebound, thereby the separation of latch and snap ring has been realized, latch and snap ring no longer block together this moment, first vertical axis can rotate, the backing roll can take place to rotate. Need not extra messenger's latch and snap ring through this scheme and carry out the separation operation, when holding the hand wheel, latch and snap ring can separate easy operation convenience.

After the hand wheel is loosened, the sliding plate moves downwards under the action of the elastic force of the elastic piece, and the sliding plate drives the latch to move downwards through the vertical rod, so that the latch and the snap ring are automatically clamped together.

Preferably, as an improvement, a plurality of connecting pipes are connected between the hand wheel and the first vertical shaft, the connecting pipes are uniformly distributed around the center circumference of the hand wheel, the connecting pipes extend into the cavity, and the air bag is positioned between two adjacent connecting pipes; an air pipe is connected between the air bag and the piston cavity and penetrates through the connecting pipe and the first vertical shaft. The hand wheel and the first vertical shaft are fixed through the connecting pipe, and the hand wheel is rotated to drive the first vertical shaft to rotate. The trachea is arranged in the connecting pipe, and the trachea is prevented from being exposed outside the hand wheel. Every gasbag in this scheme is solitary to be located between the adjacent connecting pipe, and the gasbag offsets with the lateral wall of connecting pipe, the inner wall of hand wheel cavity, and the gasbag is spacing and can not further expand, like this when pressing one of them gasbag, atmospheric pressure grow in the piston chamber because the gasbag can not further expand, so during gas in the piston chamber can not enter into other gasbags, has guaranteed that the gas that increases in the piston chamber can promote the piston and remove.

Preferably, as an improvement, a fixed plate is fixedly connected inside the first vertical shaft, a guide rod is fixedly connected to the sliding plate, a guide hole is formed in the fixed plate, and the guide rod penetrates through the guide hole; the elastic part is a pressure spring which is connected between the fixed plate and the sliding plate, and the pressure spring is sleeved on the guide rod. Therefore, when the sliding plate moves vertically, the guide rod slides vertically in the guide hole, so that the vertical sliding of the sliding plate is guided. When the sliding plate moves towards the direction close to the fixed plate, the pressure spring is compressed, the pressure spring stores power, and when the air bag is loosened, the sliding plate moves downwards under the action of the elastic force of the pressure spring to reset.

Preferably, as an improvement, the mounting is the dead lever, is equipped with circular shape recess on the top of backing roll, and the top of dead lever is equipped with the fixture block, and the fixture block card is on the lateral wall of recess. From this, through setting up the circular shape recess for the fixture block can block on the top of backing roll, and the dead lever is located the backing roll and can not drop. Because the recess is circular, therefore the fixture block can block in the optional position at backing roll top, and the dead lever can be fixed the tip of the paper of arbitrary length that is not more than backing roll girth like this.

Drawings

Fig. 1 is a front view of a multifunction drawing device.

Fig. 2 is a perspective view of the support roller of fig. 1.

Fig. 3 is an enlarged view of a in fig. 1.

Fig. 4 is a top view of the snap ring of fig. 3.

Fig. 5 is a top cross-sectional view of the hand wheel of fig. 1.

Fig. 6 is a vertical sectional view of the first vertical shaft, mainly illustrating the structures of the piston cylinder, the sliding plate, the vertical rod, and the like.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a base 1, a seat 2, wheels 3, a supporting block 4, a hand wheel 5, a supporting roller 6, a fixing rod 7, a limiting part 8, a lifting cylinder 9, a second vertical shaft 10, a chain 11, a second chain wheel 12, a bearing 13, a first chain wheel 14, a first vertical shaft 15, a clamping ring 16, a groove 17, a clamping block 18, an air bag 19, a pressing block 20, a connecting pipe 23, an air pipe 24, a fixing plate 26, a guide rod 27, a pressure spring 28, a sliding plate 29, a vertical rod 30, a clamping tooth 31, a piston cylinder 32, a piston 33, a piston rod 34, an air hole 36 and paper 41.

The embodiment is basically as shown in the attached figures 1-6: a multifunction drawing device includes a base 1, a seat 2, and a support roller 6 for supporting a sheet 41. The wheels 3 are rotatably arranged at the bottom of the base 1, so that the equipment can move on the ground. The top of the base 1 is fixed with a supporting block 4 through a bolt, and the top of the supporting block 4 is fixed with a seat 2 through a bolt. 6 vertical settings of backing roll, backing roll 6 are located the right side of seat 2, and the bottom of backing roll 6 is rotated and is connected on base 1, and specific rotation mode is: there is second vertical axis 10 through bearing rotation on the base 1, has lift cylinder 9 through the bolt fastening on the top of second vertical axis 10, and the cylinder pole of lift cylinder 9 passes through the bolt fastening on the bottom of backing roll 6, rotates through second vertical axis 10 like this, and second vertical axis 10 drives backing roll 6 through lift cylinder 9 and rotates to backing roll 6's rotation has been realized. Because the lifting cylinder 9 is arranged between the second vertical shaft 10 and the supporting roller 6, the lifting of the supporting roller 6 is realized through the lifting of the cylinder rod of the lifting cylinder 9, and the height of the supporting roller 6 can be adjusted. As shown in fig. 2, the edge of the bottom of the supporting roller 6 is integrally formed with a limiting portion 8 for abutting against the bottom end of the paper 41, in this embodiment, the limiting portion 8 is a circular limiting plate, and the limiting plate protrudes from the edge of the bottom of the supporting roller 6. The support roller 6 is provided with two fixing members for fixing the sheet 41 on the circumferential side of the support roller 6. The fixing piece in this embodiment is a fixing rod 7, a circular groove 17 is formed in the top of the supporting roller 6, the top end of the fixing rod 7 is bent to form a clamping block 18, a gap capable of enabling the side wall of the groove 17 to be inserted is formed between the clamping block 18 and the fixing rod 7, and the clamping block 18 can be clamped on the side wall of the groove 17. In the embodiment, the paper 41 is placed on the circumferential side surface of the supporting roller 6 in a surrounding manner, the paper 41 is attached to the circumferential side surface of the supporting roller 6, the bottom of the paper 41 abuts against the limiting part 8, then the two fixing rods 7 are respectively pressed on the two end parts of the paper 41, the clamping blocks 18 at the tops of the fixing rods 7 are inserted into the grooves 17, and the fixing rods 7 press the end parts of the paper 41, so that the paper 41 on the supporting roller 6 is fixed.

Referring to fig. 1, the base 1 is rotatably connected with a first vertical shaft 15 which is vertical, specifically, the bottom of the first vertical shaft 15 is rotatably connected to the base 1 through a bearing 13, the first vertical shaft 15 is located on the left side of the second vertical shaft 10, the first vertical shaft 15 is coaxially welded with a first chain wheel 14, the second vertical shaft 10 is coaxially welded with a second chain wheel 12, and a chain 11 is connected between the first chain wheel 14 and the second chain wheel 12. Referring to fig. 5, a hand wheel 5 close to the seat 2 is fixedly disposed at the top end of the first vertical shaft 15, specifically, the hand wheel 5 is annular, five connecting pipes 23 are welded between the inner wall of the hand wheel 5 and the top end of the first vertical shaft 15, and the five connecting pipes 23 are uniformly distributed around the circumference of the central portion of the hand wheel 5. The interior of the hand wheel 5 is provided with an annular cavity into which the end of the connecting tube 23 remote from the first vertical axis 15 extends, so that the connecting tube 23 divides the cavity into five arcuate spaces. The five arc-shaped spaces are all adhered with air bags 19, and thus the five air bags 19 are evenly distributed around the circumference of the central part of the hand wheel 5. Five sliding grooves are formed in the inner wall of the hand wheel 5 and are communicated with the arc-shaped space, pressing blocks 20 are inserted into the sliding grooves, the pressing blocks 20 can slide in the radial direction of the hand wheel 5, the plurality of pressing blocks 20 are circumferentially and uniformly distributed on the hand wheel 5, one end, located in the arc-shaped space, of each pressing block 20 is opposite to and abuts against the air bag 19, and the other end of each pressing block 20 is located on the outer side of the inner side wall of the hand wheel 5.

Referring to fig. 6, the first vertical shaft 15 is hollow, a piston cylinder 32 is fixed inside the first vertical shaft 15 through a bolt, a piston cavity is formed in the piston cylinder 32, a piston 33 slides in the piston cavity in a vertical sealing manner, and a piston rod 34 is fixed on the top end of the piston 33 through a bolt. The fixed plate 26 that is located piston cylinder 32 top is fixed in the inside of first vertical axis 15 through the bolt, be equipped with two guiding holes on the fixed plate 26, the vertical swing joint in inside of first vertical axis 15 has sliding plate 29, it is concrete, the welding has two guide bars 27 on the top of sliding plate 29, guide bar 27 passes the guiding hole and can vertically slide in the guiding hole, be connected with the elastic component between sliding plate 29 and the fixed plate 26, the elastic component in this embodiment is pressure spring 28, pressure spring 28 cover is established on guide bar 27, the both ends of pressure spring 28 weld respectively on fixed plate 26 and sliding plate 29. The top end of piston rod 34 and slide plate 29 are fixedly connected by screws. The sliding plate 29 is welded with a vertical rod 30, the vertical rod 30 is located on the outer side of the piston cylinder 32, the vertical rod 30 is located inside the first vertical shaft 15, the bottom of the vertical rod 30 penetrates through the bottom end of the first vertical shaft 15, and a latch 31 located on the outer side of the bottom end of the first vertical shaft 15 is welded on the bottom of the vertical rod 30. The base 1 is welded with an annular clamping ring 16 shown in fig. 4, the latch 31 is located below the bottom end of the first vertical shaft 15, the clamping ring 16 is provided with a plurality of annularly distributed teeth, and the latch 31 and the clamping ring 16 are clamped together.

The air bags 19 in the embodiment are connected with air pipes 24, the air pipes 24 penetrate through the connecting pipes 23, and one ends of the air pipes 24 far away from the air bags 19 are communicated with the piston cavities.

The specific implementation process is as follows: at the time of drawing, the sheet 41 is placed on the circumferential side wall of the supporting roller 6, and the end of the sheet 41 is fixed by the fixing lever 7 so that the sheet 41 does not fall off the supporting roller 6. The person of drawing sits on seat 2, and the person of drawing is facing back-up roll 6, and the person of drawing is drawing on paper 41 on back-up roll 6, and latch 31 and snap ring 16 card are in the same place simultaneously, and first vertical axis 15 can not the free rotation, and the second vertical axis 10 with first vertical axis 15 linkage can not rotate yet like this, has guaranteed that the person of drawing is in static stable state when the drawing backing-up roll 6.

When different parts of the paper 41 need to be drawn, a drawer sits on the seat 2 and rotates the hand wheel 5, at the moment, the hand of the drawer holds the hand wheel 5 first, the hand presses the pressing block 20, the pressing block 20 slides along the radial direction of the hand wheel 5, the held pressing block 20 extrudes the air bag 19, the extruded air bag 19 enters the piston cavity, the air pressure in the piston cavity is increased, the piston 33 is pushed by the air in the piston cavity to move upwards, the piston 33 drives the sliding plate 29 to move upwards through the piston rod 34, the sliding plate 29 enables the pressure spring 28 to be compressed, the sliding plate 29 drives the vertical rod 30 to move upwards, the vertical rod 30 drives the latch 31 to move upwards, so that the separation of the latch 31 and the snap ring 16 is realized, at the moment, the latch 31 and the snap ring 16 are not clamped together, and the first vertical shaft 15 can rotate freely. Then, the hand wheel 5 is rotated, the hand wheel 5 drives the first vertical shaft 15 to rotate, the first vertical shaft 15 drives the first chain wheel 14 to rotate, the first chain wheel 14 drives the second chain wheel 12 to rotate through the chain 11, and the second chain wheel 12 drives the second vertical shaft 10 to rotate, so that the supporting roller 6 is driven to rotate. The supporting roller 6 rotates to move the sheet 41 so that different portions of the sheet 41 are opposed to the plotter, so that the plotter can perform the plotting at different portions on the sheet 41.

After the supporting roller 6 rotates to a proper position, the hand wheel 5 is loosened, the sliding plate 29 moves downwards under the action of the elastic force of the pressure spring 28 and the self weight, the sliding plate 29 drives the latch 31 to move downwards through the vertical rod 30, so that the latch 31 and the snap ring 16 are automatically clamped together, the first vertical shaft 15 is locked, and the supporting roller 6 cannot rotate freely. Meanwhile, the gas in the piston cylinder 32 is pressed back into the extruded air bag 19 again, the air bag 19 is deformed again, the air bag 19 enables the corresponding pressing block 20 to move towards the outer side direction of the inner wall of the hand wheel 5, and the pressing block 20 is restored to the original position.

The above description is only an example of the present invention, and the general knowledge of the known specific technical solutions and/or characteristics and the like in the solutions is not described herein too much. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. A multifunctional drawing device, characterized in that: the paper feeding device comprises a base, a seat and a supporting roller for supporting paper; the seat is positioned on the base, the supporting roll is vertically arranged, the bottom end of the supporting roll is rotatably connected to the base, and the seat and the supporting roll are oppositely arranged; the edge of the bottom of the supporting roll is provided with a limiting part for abutting against the bottom end of the paper, and the supporting roll is provided with a fixing part for fixing the paper on the circumferential side surface of the supporting roll;

a first vertical shaft and a second vertical shaft which are vertical are rotatably connected to the base, a hand wheel close to a seat is fixedly arranged at the top end of the first vertical shaft, and the second vertical shaft is coaxially and fixedly connected with the supporting roll; a first chain wheel is coaxially and fixedly connected to the first vertical shaft, a second chain wheel is coaxially and fixedly connected to the second vertical shaft, and a chain is connected between the first chain wheel and the second chain wheel;

an annular cavity is formed in the hand wheel, a plurality of air bags which are uniformly distributed on the circumference are arranged in the cavity, a plurality of pressing blocks radially slide on the inner wall of the hand wheel, the plurality of pressing blocks are uniformly distributed on the circumference of the hand wheel, and the pressing blocks are opposite to and abutted against the air bags; the inner part of the first vertical shaft is vertically and movably connected with a sliding plate, the sliding plate is fixedly connected with a vertical rod, the bottom of the vertical rod is fixedly provided with a latch positioned on the outer side of the first vertical shaft, a piston cavity is arranged inside the first vertical shaft, a plurality of air bags are communicated with the piston cavity, pistons are connected in the piston cavities in a sliding manner, piston rods are fixedly connected on the pistons, the sliding plate is fixedly connected with the piston rods, and the sliding plate is connected with an elastic piece; the base is fixedly connected with an annular clamping ring, a plurality of annularly distributed teeth are arranged on the clamping ring, and the clamping teeth and the clamping ring are clamped together.

2. The multifunctional drawing device according to claim 1, wherein: a plurality of connecting pipes are connected between the hand wheel and the first vertical shaft, the connecting pipes are uniformly distributed around the center circumference of the hand wheel, the connecting pipes extend into the cavity, and the air bag is positioned between two adjacent connecting pipes; an air pipe is connected between the air bag and the piston cavity and penetrates through the connecting pipe and the first vertical shaft.

3. The multi-function drawing device according to claim 2, wherein: a fixed plate is fixedly connected inside the first vertical shaft, a guide rod is fixedly connected to the sliding plate, a guide hole is formed in the fixed plate, and the guide rod penetrates through the guide hole; the elastic part is a pressure spring, the pressure spring is connected between the fixed plate and the sliding plate, and the pressure spring is sleeved on the guide rod.

4. The multifunctional drawing device according to claim 1, wherein: the fixing piece is a fixing rod, a circular groove is formed in the top of the supporting roll, a clamping block is arranged at the top end of the fixing rod, and the clamping block is clamped on the side wall of the groove.