CN2445937Y - Board for writing training, tracing and drawing - Google Patents

Abstract

The utility model relates to a board for writing training tracing and drawing. The utility model is composed of a main frame body, a power line, an electric light source and a bottom cover, wherein, the upper surface of the main frame body is provided with a frosting glass plate, the lower surface of the frosting glass plate is provided with a window used for receiving the electric light source, the frame sides of the right, the lower and the right of the window are provided with communicated sliding slots, a drawing tool is arranged in the sliding slots, the drawing tool can slide in the sliding slots, the drawing tool is composed of a straight rule and a protractor, two pairs of reels used for winding various training bands and light regulating film bands are arranged in the main frame body, and a reflector of the electric light source is arranged in the position against the frosting glass plate. The utility model is suitable for students to do housework and practice characters, and for engineering drawing personnel to tracing and drawing.

Description

Handwriting practicing drawing plotting board

The utility model belongs to a kind of cultural tools that is used for work such as Graphing of Engineering tracing and students' work handwriting practicing.

General read-write board all from favourable vision protection, is regulated the distance of written and sight line and angle and is set out and design, thereby make the user when reading and writing, and a correct seat appearance is arranged, and keeps best sighting distance and sight angle.Popular on the market Follow board for practicing writing then is to design from practising handwriting code requirement, and the font that favourable handwriting practicing person can learn into certain standard is a purpose.The drills to improve one's handwriting that the student uses originally generally all are printed with certain grid style on paper, so that the student can reasonably arrange Chinese character write in lattice.As will also handling with common blank sheet of paper do the calligraphy use of practising handwriting with pencil lattice on paper, increase workload, also inconvenient, also stay the person's handwriting of lattice simultaneously on paper, influence written cleaning requirement.Commonly used drawing board in the Graphing of Engineering is then drawn the requirement of engineering drawing and is made from single solution.Though the application of favourable various drawing instruments if be used for tracing, often feels that then pattern line is unintelligible, especially when the room light photograph was relatively poor, this type of problem was just more outstanding.If run into the not so good translucent drawing paper of transparency or use general slim blank sheet of paper to trace designs, just the clear shadow of the pattern line that is traced designs can not be mirrored.Make that tracing work is difficult to carry out.Secondly, in drawing or tracing designs, angle pattern that the system of picture is determined or parallel lines etc., just necessary use amount hornwork, ruler, set square, T-square etc., and when painting parallel lines, also must make of two set squares, careless slightly, will make the parallel lines distortion.Like this, make the laying on the table of instrument a pile, the operation when not only messy but also influence is drawn.

It is one with grid style and student's homework book form sample commonly used that the purpose of this utility model just provides a kind of drawing board, ruler, T-square, protractor and various ready-made calligraphy of collecting, and the drawing board light transmission is adjustable, in the handwriting practicing tracing drawing board of electric light source is arranged.

The scheme that realizes above-mentioned purpose is as follows:

The utility model is by main frame, power line, electric light source and bottom constitute, key is that the upper surface at main frame is equipped with a ground glass plate, it below the glass plate window of accepting light source, a window left side, down, be shaped on the chute of connection on right three parts's the front edge, be equipped with in the chute can in groove, slide by ruler, protractor constitutes the drawing instrument of one, two pairs of spools are installed in the framework, winding up has calligraphy commonly used on a pair of spool, the one-tenth form belt transect that operation is used, another to winding up on the spool by the light modulation film band of forming by different light transmittance blocks, over against the position of glass plate, the electric light source reflection shield is installed.

Main frame is a rectangle, and the window of accepting light source is in the positive middle part of framework, and the ground glass plate is installed on it.Be shaped on four contiguous blocks that bottom and spool are installed in the framework, on the sidewall of framework one end, open two axis holes that allow the spool front end stretch out.The centre position of two axis holes has a wire guide that power switch is installed.In the position that four spools pass through, an elastic clip of regulating the spool elasticity is installed respectively near this inside sidewalls.Respectively have a crack mouth that allows lattice belt and light modulation film tape running at the edge place on the upper and lower edge of window.The cross section semicircular in shape of the drawing instrument chute that the positive left side that makes of main frame, following, right three parts are communicated with has a translot that platen magnetic iron bar is installed on the edge above the window.

Electric light source is little by the big end of mouth, and wall is curved surface shaped, and the bottom is that the light source slot of square bucket-shaped reflection shield and the installation luminous lamp tube that is shaped on the indent evagination on its wall constitutes.

Drawing instrument by wholecircle protractor, ruler and the connecting axle of the two and be used for cooperating 0-5 ° of angle of tolerance with protractor and the graduated scale of cutting ferrule on ruler be made of one and form.The connecting portion of ruler and protractor is made round shape, and its upper semi-circle is shaped on the tolerance groove at 180 ° of angles.Be shaped on a plurality of working standard small sircle holes of 3-16mm at 20 centimeters graduation marks of ruler with interior part, with the convenient small circular pattern that is difficult to the system of drawing with compasses of drawing.The connecting portion of graduated scale and ruler also is equipped with positioning knob, and corresponding measurement point position is shaped on the recessed spherical cavity in location on the ruler, is used for graduated scale is accurately positioned in measurement point, guarantees to measure 0-5 ° accuracy.At the back side of protractor along the part that slides of two sections of the 90-270 ° of affixed branches of line; This slides part and is semicylinder, and the chute on its cylinder and the main frame coincide.Circle centre position with the protractor counterpart on protractor and the ruler all has axis hole, and the connecting axle by outer end band knob is connected as a single entity the two.

The bottom of main frame is a square plate, has above respectively to be connected and the hole with main frame with reflection shield.Earlier the reflection shield that installs luminous tube is fixed on the bottom during installation; Being printed with after various operations, handwriting practicing become lattice (as: coordinate grid, arithmetic operation lattice, writing pad lattice, English training lattice, staff lattice, Chinese phonetic alphabet lattice, composition lattice, regular script in small characters lattice, middle pattern lattice, return field word block letters lattice and the plastic film printing goods of the various double check with a cores that differ in size) band to pass two cracks on the main frame, be wound on two spools; The light modulation film band of being made up of the different block of light transmittance is passed aforesaid crack mouth, be wound on another on the spool.The bottom that has installed reflection shield is fixed on the main frame with screw, makes reflection shield place the framework inner chamber.Again the ground glass plate is contained in the window's position in main frame front, iron bar or magnetic strips are placed in the groove of top, drawing instrument is snapped in its chute according to instructions for use.So just make a handwriting practicing drawing plotting board.

The utility model has the advantages that electric light source is installed that ground glass plate and drawing instrument and magnetic platen bar are equipped with in the front in main frame.Make in drawing work, can make full use of these design features and draw engineering drawing, utilize the cooperation of ruler, chute, rotating shaft and the protractor that can rotate.Can draw various parallel lines easily, and the pattern of accurately making various angles.Also can utilize the standard round that provides on the ruler, draw the roundlet that is difficult to draw with compasses.Change orientation and the angle of ruler and the protractor drawing that can finish any geometrical pattern of drawing instrument in chute.During tracing, open electric light source, make by the lines of tracing case and can more clearly be presented in the translucent drawing paper, and also figure can be retouched with general slim blank sheet of paper and to make, especially in the environment of indoor light deficiency, all can reach this effect.Utilize the various grid styles that are printed on the lattice belt, open electric light source, use and generally write blank sheet of paper, all can reach the function that the lattice writing paper is arranged; Be rotated into the lattice spool of tape, can choose the one-tenth form sample that needs wantonly; Rotary light adjustment film spool of tape can make the block of the suitable needs of light transmittance on the film band be in the glass plate position, reaches the selection to light intensity.In tracing, when drawing, utilize spool to make the clear area of lattice belt be in the ground glass Board position and get final product.So the utility model can replace general drawing board, protractor, compasses, ruler, the partial function of T-square, set square and various effect of writing lattice commonly used.

Fig. 1, the utility model outline drawing;

Fig. 2, main frame internal structure schematic diagram;

The location drawing of Magnetic strip groove on main frame of Fig. 3, drawing instrument chute and paper;

Fig. 4, reflection shield shape and the electric light source mounting groove distribution form figure in the reflection shield inner chamber;

Fig. 5, bottom shape and with the connecting hole distribution map of reflection shield, main frame;

Fig. 6, in the main frame each component locations graph of a relation after the lateral dissection of electric light source mounting groove position;

Fig. 7, ruler, protractor and graduated scale shape and structure and interconnected relationship schematic diagram;

Fig. 8, the affixed half round post in the protractor back side slide the connected mode figure of part and protractor;

Fig. 9, protractor, ruler connecting portion and slide combination schematic diagram between part;

Figure 10, ruler, graduated scale shape of cross section and the two cutting ferrule version schematic diagram.

Below in conjunction with accompanying drawing,, such scheme is described further as an embodiment.

With reference to Fig. 1,2,3, main frame 6 is made cuboid, and four jiaos is cambered surface, and mid portion has the window 20 that glass plate is installed, and window four limits all are shaped on concave station rank 25, glass plate is packed into after, with the framework upper surface in the isoplanar.On sidewall that leans on the main frame corner location and main frame upper bottom surface inwall, be shaped on four contiguous blocks 21 that bottoms, spool 23,24 are installed, all have axis hole that spool 23,24 is installed and the installing hole 17 that bottom is installed on each contiguous block; The elastic clip 16 of regulating four spool elasticities is produced on interior spool 23, the 24 front position places of main frame, and itself and framework inwall are connected as a single entity; Open four axis holes on the corresponding main frame front end side wall.Two pairs of spools 23,24 just pass each self-corresponding three axis hole, are installed in the framework; Spool 23,24 front ends stretch out outside framework, load onto spool knob 12,11, and the end of spool stretches out on the right outside the axis hole on the contiguous block 21, inserts spacing bail from locating hole 22.For making spool 23,24 positions determine state in favourable use not move in not understanding, being shaped on the spool on the spool 23,24 at the front end place that is positioned at the contiguous block 21 in the left side is the positioning convex ring 15 of one.Each spool 23,24 also is sandwiched in the elastic clip 16 simultaneously, regulates elasticity with screw, and it is smooth and loosening easily that lattice belt 7 on the spool and light modulation film band 34 are tightened in use, makes manual spool knob 11,12 rotatable spools again.The wire guide 18 of electric light source switch 14 leaves on the framework between two light modulation film spool of tape 23 front ends, and switch 14 just is installed in wire guide 18 places.

With reference to Fig. 1,3, the chute 5 of drawing instrument be produced on main frame 6 upper surface left sides, down, on the right edge; Chute 5 cross sections are made semicircle; The chute 5 on left and right both sides is communicated with the chute 5 of below.The mounting groove 26 of the iron bar 9 that cooperates with platen magnetic strips 8 is above the main frame front, and iron bar 9 is loaded in it, so that when using, the paper that makes the Magnetic strip 8 that is pressed in its position will be positioned at the two clamps.

With reference to Fig. 4, reflection shield 27 walls are cambered surface 29, and the bottom is a rectangle, and have four connecting holes corresponding with bottom 30.Respectively make the electric light source mounting groove 28 of two indent evaginations on the inwall of two length directions, the groove inwall is an arcwall face.Leave in groove in the power line hole.Photophore adopts energy saving cold light source fluorescent tube, and lamp socket also is installed in the groove.

With reference to Fig. 5,2,4, bottom 31 is a square plate, and its size is exceeding main frame 6 backside space cappings.On the bottom except four connecting holes 31 that reflection shield 27 is installed, also have four with the corresponding installing hole 32 of installing hole 17 on interior four contiguous blocks 21 of main frame.

With reference to Fig. 1,2,3,4,5,6, after aforesaid each parts make, reflection shield 27 is packed in earlier on the bottom 33, and in electric light source mounting groove 28, install fluorescent tube 36, connect lead, power line is drawn from main frame 6 sidewall openings, the plug 10 of connecting with the mains, connect with power switch 14 simultaneously, again bottom 33 usefulness screws are fixed on the contiguous block 21 in the main frame 6.The limit, two ends of lattice belt 7 and light modulation film band 34 two crack mouths 19 from the main frame are penetrated, and make light modulation film band 34 be in lattice belt 7 below, cement on the corresponding spool 24,23.Light modulation film band 34 adopts the blockettes press mold of tinting to make, and each block size is slightly larger than the area of window 20, and that block is divided into is colourless, light green, medium green and dark green etc.Spinning reel makes lattice belt and the whole winding ups of light modulation film band on each self-corresponding two axle 24,23, and mid portion is the clear area.Bottom 33 is fixed on the main frame 6 by installing hole 32 corresponding on bottom 33 and the contiguous block 21 with screw, reflection shield 27 is right against window 20 positions again; Loosening lattice belt 7 and light modulation film band 34 are installed in the window place with ground glass plate 35, make lattice belt 7 and light modulation film band 34 place glass plate 35 upper surfaces.Promptly finished the installation of main frame and internal part.

With reference to Fig. 7,8,9,10,1, the circle centre position of the connecting portion of protractor 4 and ruler 2 has axis hole, is connected as a single entity by a concentric reducer connecting axle 42 and adjusting knob 3, loosening knob 3, and ruler 2 can rotate around axle 42.The joint portion of ruler 2 and protractor 4 is circle shapes, and the thickness sum of the two bonding part equals the thickness of remainder on the ruler.Guaranteeing one when using, wholely contact tightly with glass plate 35.To slide that part slides between part for 1, two section be exactly the center connecting hole 41 of protractor to affixed two sections half round posts on same straight line on the 90-270 ° of line at protractor 4 back sides.Like this, this drawing instrument that is combined into is stuck in the chute 5 of main frame 6 upper surfaces, the bar pattern can draw parallel lines.If loosening adjusting knob 3 rotates ruler 2 to the gradient that needs.Can draw the oblique parallel line, cooperate, can draw the angle pattern of various definite number of degrees with protractor 4.On the 90-270 ° of line of protractor 4, be shaped on four indentation cups 43 on the 0-180 ° line, correspondence position at ruler 2 and the contact site of protractor 4 is shaped on four bosselations 40, so that ruler 2 in axle 42 rotates, all can be located by knob pressurization chucking at vertical line and horizontal line position.

With reference to Fig. 7,10,1, when in measurement or 0-5 ° of angle of drafting, being accurate to 0.5 ° of angle, then adopt the cooperation of protractor 4, ruler 2, graduated scale 13 to finish.Graduated scale 13 cutting ferrules can slide between 20-40cm on ruler 2.The measurement point of measuring and draw the angle in the 0-5 ° of angle is fixed on 20cm groove place on the ruler, the forward position that is graduated scale 13 overlaps with the 20cm groove, knob 37 on the rotation graduated scale 13, its lower end is held out against in the circular positioning port 38 at the 21cm place on ruler, screw knob 37, then on the graduated scale between adjacent two graduation marks the angle to the protractor circle centre position be 0.5 °.So can draw or measure the angle in the 0-5 ° of scope.On ruler 2 in the 0-19cm, be manufactured with from 3-16mm and amount to 14 standard rounds 39, draw roundlet pattern commonly used during with convenient the drawing.The bottom surface of 20-40cm part is shaped on the dihedral groove on the ruler 2, and its front first half is shaped on the tenon platform of band dihedral groove, and counterpart then is made into dihedral tenon platform on the graduated scale 13.Like this, just graduated scale card 13 can be enclosed within on the ruler 2, and can slide in the optional position of 20-40cm; Usually when not using, it is slided to the outer end of ruler 2, screw knob 37, knob 37 lower ends are snapped in the circular bayonet socket of corresponding position on the ruler 2, make it not hinder the use of ruler 2.

With reference to Fig. 1,6, draw or during tracing, utilization hornwork 4 back sides slide part 1, drawing instrument is loaded in the chute 5 of main frame 6 upper surfaces.According to using needs, can place a left side, down, the chute 5 of right different azimuth.If need to draw the oblique line bar, then loosening adjusting knob 3.Forwarding ruler 2 to be fit to require gradient gets final product; If draw the oblique parallel line, reserve ruler 2 gradients, screw adjusting knob 3, instrument is slided in chute 5 can be realized.Just drawing, when tracing designs,, making the clear area of lattice belt 7 be in glass plate 35 positions by spinning reel 24.During tracing, master drawing is placed earlier on the glass plate 35, power-on switch 14, the some bright light source 36, just can with master drawing clearly shadow reflect in translucent drawing paper.If utilize lattice belt 7 to come operation, handwriting practice, then the spinning reel knob 11, choose corresponding lattice sample, make it place the glass plate district, open light source, take off drawing instrument, can carry out the study, operation, calligraphy etc. of standard with general blank sheet of paper; If sensation light intensity discomfort, rotary light adjustment film band knob 12.Make the printing opacity block that is fit to needs place the glass plate position to get final product.Main frame 6 of the present utility model, bottom 31 all can be made of the plastic raw materials pressing mold.

Claims (9)

1, a kind of handwriting practicing drawing plotting board, by main frame (6), power line, electric light source and bottom (33) constitute, it is characterized in that a ground glass plate (35) being installed at the upper surface of main frame (6), it below the glass plate window (20) of accepting light source, a window left side, down, be shaped on the chute (5) of connection on right three parts's the front edge, be equipped with in the chute (5) can in groove, slide by ruler (2), protractor (4) constitutes the drawing instrument of one, two pairs of spools (24 are installed in the framework, 23), spool (24) is gone up winding up calligraphy commonly used, the one-tenth form belt transect (7) that operation is used, spool (23) winding up is by the light modulation film band of being made up of different light transmittance blocks (34), over against the position of glass plate (35), electric light source reflection shield (27) is installed.

2, handwriting practicing drawing plotting board according to claim 1 is characterized in that main frame (6) is a rectangle, and the window (20) of accepting light source is in the positive middle part of framework, and ground glass plate (35) is installed on it; Be shaped on four contiguous blocks (21) that bottom (33) and spool (24,23) are installed in the framework, on the sidewall of framework one end, open two pairs of axis holes that allow spool (23,24) front end stretch out.

3, handwriting practicing drawing plotting board according to claim 1 and 2 is characterized in that main frame (6) front end madial wall is neighbouring in the position that two pairs of spools (24,23) pass through, and two pairs of elastic clips (16) of regulating spool (24,23) elasticities are installed.

4, handwriting practicing drawing plotting board according to claim 1 and 2 is characterized in that the edge place on the upper and lower edge of window (20) on the main frame (6) respectively has a crack mouth (19) that allows lattice belt (7) and light modulation film band (34) move.

5, handwriting practicing drawing plotting board according to claim 1, it is characterized in that the positive left side that makes of main frame (6), down, the cross section semicircular in shape of the right tripartite drawing instrument chute (5) that is communicated with.

6, handwriting practicing drawing plotting board according to claim 1, it is characterized in that electric light source is little by the big end of mouth, wall is curved surface shaped (29), the bottom is that the light source slot (28) of square bucket-shaped reflection shield (27) and the installation luminous lamp tube (36) that is shaped on the indent evagination on its wall constitutes.

7, handwriting practicing drawing plotting board according to claim 1 is characterized in that drawing instrument is by wholecircle protractor (4), ruler (2) and the connecting axle of the two (42) and be used for cooperating with protractor 0-5 ° of angle of tolerance and the graduated scale (13) of cutting ferrule on ruler to be made of one forming.

8, according to claim 1 or 7 described handwriting practicing drawing plotting boards, it is characterized in that the connecting portion of ruler (2) and protractor (4) is made round shape, its upper semi-circle is shaped on the tolerance groove at 180 ° of angles.

9,, it is characterized in that at the back side of protractor (4) sliding part (1) along two sections of the 90-270 ° of affixed branches of line according to claim 1 or 7 described handwriting practicing drawing plotting boards; This slides part (1) and is semicylinder, and the chute (5) on its cylinder and the main frame (6) coincide.

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