CN203004810U

CN203004810U - Four wire grid drawing device in English teaching

Info

Publication number: CN203004810U
Application number: CN 201220673414
Authority: CN
Inventors: 李跃宇; 王晓日; 李冬梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-12-10
Filing date: 2012-12-10
Publication date: 2013-06-19
Anticipated expiration: 2022-12-10

Abstract

The utility model discloses a four wire grid drawing device in English teaching, and aims to provide the four wire grid drawing device in English teaching which is convenient to use and operate, capable of reducing labor intensity, beneficial for improving teaching efficiency and teaching quality. The four wire grid drawing device in English teaching comprises four pieces of chalk, a drawing device body which fixedly holds the four pieces of chalk, and a horizontal locator which is arranged on the drawing device body. The drawing device body is composed of a base plate, a platen, fixed bolts and compression nuts. Four semicircle grooves which correspond to each other are formed in one side of the attached surface of the base plate and the platen at equal intervals. Four pieces of chalk are inserted into four round holes, wherein the platen is pressed and attached on the base plate to form the four round holes. The four pieces of chalk pass through the platen through the two fixed bolts which are arranged on the base plate vertically and are fastened and fixed through the two compression nuts. The four wire grid drawing device in English teaching is suitable for four wire grid drawing in primary and secondary school English teaching.

Description

English teaching four line lattice renderers

Technical field

The utility model relates to a kind of English teaching aid, especially relates to a kind of English teaching four line lattice renderers.

Background technology

In middle and primary schools' English teaching, the teacher often will draw four line lattice and be used for teaching students writing English on blackboard, and the method for drawing at present four rulings is all generally to be drawn with ruler manual line-by-line on blackboard by the teacher.Some teachers, are tiled in during use and draw four line lattice on blackboard from making four line erythrophloeum ferdii frame chis with batten.Adopt ruler this traditional approach of setting-out one by one on blackboard, not only waste time and energy but also the degree of accuracy of compartment distance is difficult for guaranteeing, directly affect efficiency of teaching and quality of instruction; Adopt four line erythrophloeum ferdii frame chis to draw four line lattice on blackboard, although improved work efficiency, the part that still has some deficits, yoke chi size is large, and during use, a people often is difficult to operation and heavy, makes troubles to teaching.

The utility model content

The purpose of this utility model is for the problems referred to above that exist, and a kind of English teaching four line lattice renderers easy to operate, that reduce labor intensity, be conducive to improve efficiency of teaching and quality of instruction that use are provided.

for achieving the above object, the utility model adopts following technical proposals: English teaching four line lattice renderers of the present utility model, comprise chalk and the renderer body that is fixedly mounted with this chalk, also comprise the horizontal location device that is arranged on this renderer body, this renderer body is by base plate, pressing plate, set bolt, clamp nut forms, one side of veneer mutually of this base plate and pressing plate equidistantly is respectively equipped with four semi arch grooves of mutual correspondence, four chalks are inserted to be overlayed in four circular holes that consist of on base plate by pressing plate, and pass pressing plate by two set bolts that are vertically set on base plate, be locked by two clamp nuts.

As preferred version of the present utility model, described horizontal location device is comprised of strut, tight fixed bolt, stage clip, expansion link, roller, dog screw, edge and chalk center line vertical direction, this strut passes the front end of this base plate, and be fixed by tight fixed bolt, the two ends of this strut are provided with cylindrical bore, establish stage clip in this vestibule, expansion link is sleeved in vestibule, and top, the inner of this expansion link is pressed on stage clip, and be fixed by the dog screw that is arranged on strut, the outer end of this expansion link is provided with roller.

As improvement of the present utility model, described base plate rear end is provided with hand hole and handle.

As further improvement of the utility model, described base plate and pressing plate adopt the engineering plastics manufacturing.

After adopting technique scheme, the beneficial effect that the English teaching four line lattice renderers that the utility model provides have is:

Overlayed in four circular holes that consist of on base plate by pressing plate because four chalks insert, and pass pressing plate by two set bolts that are vertically set on base plate, be locked by two clamp nuts.The strut of described horizontal location device passes the front end of this base plate, and be fixed by tight fixed bolt, the two ends of this strut are provided with cylindrical bore, establish stage clip in this vestibule, expansion link is sleeved in vestibule, and top, the inner of this expansion link is pressed on stage clip, and is fixed by the dog screw that is arranged on strut, and the outer end of this expansion link is provided with roller.So, when drawing four line lattice on blackboard, unclamp dog screw, the expansion link of both sides outwards ejects under the effect of stage clip, holds the handle of renderer body base plate rear end, four chalk heads are pressed on blackboard, the roller of expansion link outer end, both sides keeps rolling along the blackboard upper and lower side frame, and such people once will draw one group of four line lattice fast, and is easy and simple to handle, time saving and energy saving, and the four ruling spacings of drawing are accurate, improved efficiency of teaching and quality of instruction.In a word, obtained using effect easy to operate, that reduce labor intensity, be conducive to improve efficiency of teaching and quality of instruction.

Description of drawings

Fig. 1 is the structure front view of the utility model English teaching four line lattice renderers;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is along the cutaway view of A-A line in Fig. 1;

Fig. 4 is along the cutaway view of B-B line in Fig. 1;

Fig. 5 is the partial enlarged drawing of I in Fig. 1.

In figure: base plate 1; Chalk 2; Pressing plate 3; Set bolt 4; Clamp nut 5; Strut 6; Tight fixed bolt 7; Stage clip 8; Expansion link 9; Roller 10; Dog screw 11; Handle 12; Hand hole 13.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:

As shown in Figure 1 and Figure 2, provide the organigram of the utility model English teaching four line lattice renderers, comprised chalk 2 and the renderer body that is fixedly mounted with this chalk 2, also comprised the horizontal location device that is arranged on this renderer body.In Fig. 3, Fig. 4, this renderer body is comprised of base plate 1, pressing plate 3, set bolt 4, clamp nut 5, one side of veneer mutually of this base plate 1 and pressing plate 3 equidistantly is respectively equipped with four semi arch grooves of mutual correspondence, four chalks 2 are inserted to be overlayed in four circular holes that consist of on base plate 1 by pressing plate 3, and pass pressing plate 3 by two set bolts 4 that are vertically set on base plate 1, be locked by two clamp nuts 5.

as preferred embodiment of the present utility model, at Fig. 1, Fig. 2, in Fig. 5, described horizontal location device is by strut 6, tight fixed bolt 7, stage clip 8, expansion link 9, roller 10, dog screw 11 forms, edge and chalk 2 center line vertical direction, this strut 6 passes the front end of this base plate 1, and be fixed by tight fixed bolt 7, the two ends of this strut 6 are provided with cylindrical bore, establish stage clip 8 in this vestibule, expansion link 9 is sleeved in vestibule, and top, the inner of this expansion link 9 is pressed on stage clip 8, and be fixed by the dog screw 11 that is arranged on strut 6, the outer end of this expansion link 9 is provided with roller 10.

As preferred embodiment of the present utility model, as Fig. 1, shown in Figure 4, described base plate 1 rear end is provided with hand hole 13 and handle 12.

As further improvement of the utility model, described base plate 1 and pressing plate 3 adopt the engineering plastics manufacturing.

When using English teaching four line lattice renderer, at first unclamp the fixedly tight fixed bolt 7 of strut 6, height and position according to blackboard width actual conditions and preparation drafting four line lattice moves axially strut 6 and meets the requirements of extension elongation position, left and right, then is locked by tight fixed bolt 7.Unclamp again the dog screw 11 that is arranged on strut 6, the expansion link 9 that is sleeved in strut 6 two ends vestibules is outwards ejected under stage clip 8 effects, hold the handle 12 of renderer body base plate 1 rear end, with four chalk 2 heads by being pressed on blackboard, the roller 10 of both sides expansion link 9 outer ends keeps rolling along the blackboard upper and lower side frame, and such people once will draw one group of four line lattice fast.

Described base plate 1 of the present utility model and pressing plate 3 adopt the engineering plastics manufacturing.Lightweight, carry and use operation all more convenient, be applicable to the drafting of middle and primary schools' English teaching four line lattice.

Claims

1. English teaching four line lattice renderers, comprise chalk (2) and be fixedly mounted with the renderer body of this chalk (2), it is characterized in that: also comprise the horizontal location device that is arranged on this renderer body, this renderer body is by base plate (1), pressing plate (3), set bolt (4), clamp nut (5) forms, one side of veneer mutually of this base plate (1) and pressing plate (3) equidistantly is respectively equipped with four semi arch grooves of mutual correspondence, four chalks (2) are inserted by pressing plate (3) to be overlayed in upper four circular holes that consist of of base plate (1), and pass pressing plate (3) by two set bolts (4) that are vertically set on base plate (1), be locked by two clamp nuts (5).

2. English teaching four line lattice renderers according to claim 1, it is characterized in that: described horizontal location device is by strut (6), tight fixed bolt (7), stage clip (8), expansion link (9), roller (10), dog screw (11) forms, edge and chalk (2) center line vertical direction, this strut (6) passes the front end of this base plate (1), and be fixed by tight fixed bolt (7), the two ends of this strut (6) are provided with cylindrical bore, establish stage clip (8) in this vestibule, expansion link (9) is sleeved in vestibule, and top, the inner of this expansion link (9) is pressed on stage clip (8), and be fixed by the dog screw (11) that is arranged on strut (6), the outer end of this expansion link (9) is provided with roller (10).

3. English teaching four line lattice renderers according to claim 1 and 2 is characterized in that: described base plate (1) rear end is provided with hand hole (13) and handle (12).

4. English teaching four line lattice renderers according to claim 1 and 2, is characterized in that: described base plate (1) and the manufacturing of pressing plate (3) employing engineering plastics.