CN2892500Y

CN2892500Y - Four-line lattice and stave draughting instrument

Info

Publication number: CN2892500Y
Application number: CN 200620020589
Authority: CN
Inventors: 隗立福
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-13
Filing date: 2006-04-13
Publication date: 2007-04-25
Anticipated expiration: 2016-04-13

Abstract

The utility model relates to one kind of four-grid, five-grid staff instrument, including chalk-hole bracket, control straight-line wheel stand. On the chalk-hole bracket is a base plate and a handle with five same through holes with same distance on the base plate; within the through holes are installed screw nuts and a wheel stand groove is opened in the junction of the base plate and the handle; on both ends of the control straight-line wheel stand are wheels, vertically placed in the wheel stand groove on the base plate and fixed with the base plate and handle by a metal rod in the direction of through holes; and a rigid metal wire spring is placed between the control straight-line wheel stand and the handle by the metal rod. The utility model can draw four-grid or five-grid staff neatly on the blackboard for one time and solve the problem of time-waste, untidiness and nonstandard when using chalks and ruler to draw four-grid or five-grid staff on the blackboard, thus enhancing the efficiency and teaching density in classroom.

Description

Four line lattice, staff lattice instrument

One, technical field

The utility model relates to a kind of teaching aid, specifically is a kind of line-drawing instrument of drawing equidistant parallel line (four line lattice, five line lattice) with chalk on blackboard.

Two, background technology

In teaching, the teacher wishes own write carefully and neatly done, standard on blackboard, with the communication convenient and student, especially for the beginner.On the teaching classroom of begining to learn music score, the Chinese phonetic alphabet, English, to on blackboard, demonstrate the literary style and the order of strokes observed in calligraphy of standard repeatedly, just need comparing ruler setting-out lattice on blackboard with chalk repeatedly, the Chinese phonetic alphabet, English need be with four line lattice, staff need be with five line lattice, and therefore four line lattice, the five line lattice that draw seem not parallel, inhomogeneous, lack of standardization, so not only waste time and energy, and influence teaching efficiency.

Three, summary of the invention

The purpose of this utility model is to provide four line lattice, staff lattice instrument at the problems referred to above, is used to solve on blackboard directly to draw than ruler with chalk many problem that the line lattice seem not parallel, inhomogeneous, not carefully and neatly done when being parallel to each other the line lattice.

The technical solution of the utility model is achieved in that four line lattice, staff lattice instrument are configured to by chalk hole support, control straight line wheel; On the support of chalk hole substrate, handle are arranged, substrate has equally spaced five identical open-works, and the nut of band screw rod is housed in the open-work, and substrate is vertically having the wheel support groove with the handle junction; The two ends of control straight line wheel carrier have wheel, vertically place in the wheel support groove on the substrate and also fix in open-work direction and substrate, handle with metallic rod, and metallic rod part between control straight line wheel carrier and handle is equipped with the spring that supports the rigid metal silk down.

These four lines lattice, staff lattice instrument can be without ruler auxiliary disposable carefully and neatly done draw on blackboard four line lattice or five line lattice, and having solved free-handly on blackboard wastes time and energy when drawing four line lattice or five line lattice with chalk and ruler and draw not carefully and neatly, nonstandard problem.

The beneficial effect that the utlity model has:

1, the utility model solved the teacher when the letter that teaches English, the Chinese phonetic alphabet and staff when the demonstration standard literary style and the order of strokes observed in calligraphy are drawn four line lattice, five line lattice with ruler repeatedly on blackboard repeatedly each line not parallel, lack of standardization and be subjected to the problem of ruler length restriction, improve classroom efficiency, increased classroom instruction density.

2, the utility model can use the last short and small chalk head that writes, and has avoided the chalk waste, economizes on resources, and is environmental.

Four, description of drawings

Fig. 1 is a generalized section of the present utility model;

Fig. 2 is the schematic diagram of the utility model substrate;

Fig. 3 is the upward view of Fig. 1;

Fig. 4 is that the A of Fig. 1 is to view.

Among the figure: 1 wheel carrier, 2 substrates, 3 handles, 4 open-works, 5 nuts, 6 wheel support grooves, 7 wheels, 8 metallic rod, 9 springs, 10 wires, 11 rubber cushions, 12 springs

Five, the specific embodiment

Be further described this use is novel below in conjunction with accompanying drawing:

Fig. 1 provides generalized section of the present utility model, and as shown in the figure, four line lattice, staff lattice instrument are made of chalk hole support, control straight line wheel carrier 1.Substrate 2, handle 3 are arranged on the support of chalk hole, have equally spaced five identical open-works 4 on the substrate 2, the nut 5 of band screw rod is housed in the open-work 4, its structure is consulted Fig. 2 and Fig. 3.Substrate 2 is vertically having a wheel support groove 6 with handle 3 junctions, as shown in Figure 4, the control straight line wheel carrier 1 that two ends have a wheel 7 vertically places in the wheel support groove 6 on the substrate and is fixing with substrate 2, handle 3 on open-work 4 directions with metallic rod 8, and metallic rod 8 is equipped with down spring 9 to rigid metal silk 10 in control straight

line wheel carrier

1 and 3 parts of handle.

When drawing four line lattice, four chalks are inserted respectively in four adjacent open-works 4 on the substrate 2.If the chalk of packing into comes off when writing, can paste rubber cushion 11 in the lower surface of substrate 2, be used for fixing chalk, make chalk be difficult for dropping out open-work 4.Chalk spills the length unanimity of open-work 4 lower surfaces, open-work mouth upper end surface is fixed with the nut 5 of strap bolt, nut on the turn bolt, bolt is contacted with chalk, the promotion chalk moves forward, between chalk and bolt, also can place spring, with the depth of the dynamics that contacts of regulating chalk and blackboard and lines and maintenance chalk head at grade, the wheel 7 at control straight line wheel carrier 1 two ends and four chalks are at grade, control straight line wheel carrier 1 frictionally control chalk at blackboard upper edge straight ahead and equidistant parallel lines that do not draw with not being subjected to length restriction, deflection does not no longer rely on ruler, is not subjected to the ruler length restriction.The dynamics that passive rigid metal silk 10 control wheels 7 contacts with blackboard below spring 9 on the metallic rod 8 and the spring also keeps the chalk straight line that draws, the chalk that makes the shortening of wearing and tearing back simultaneously all the time with control straight line wheel place at grade.Hold handle like this, use line-drawing instrument on blackboard, just can draw four evenly carefully and neatly done line lattice.

When drawing the staff lattice, five chalks are inserted in five adjacent open-works on the stent substrate of chalk hole just passable respectively, its method of operating is identical during with picture four line lattice.

Claims

1, four line lattice, staff lattice instrument, it is characterized in that: it is by chalk hole support, control straight line wheel carrier (1) constitutes, substrate (2) is arranged on the support of chalk hole, handle (3), substrate (2) has equally spaced five identical open-works (4), the nut (5) of band screw rod is housed in the open-work (4), substrate (2) is vertically having wheel support groove (6) with handle (3) junction, the two ends of control straight line wheel carrier (1) have wheel (7), vertically place in the wheel support groove (6) on the substrate and with metallic rod (8) on open-work (4) direction with substrate (2), handle (3) is fixing, and metallic rod (8) part between control straight line wheel carrier (1) and handle (3) is equipped with the spring (9) that supports rigid metal silk (10) down.

2, four line lattice according to claim 1, staff lattice instrument is characterized in that: rubber cushion (11) is pasted in described substrate (2) lower surface.

3, four line lattice according to claim 1 and 2, staff lattice instrument is characterized in that: place spring (12) between the nut (5) of the band screw rod that is equipped with in the described open-work (4) and the chalk.