Used in English writing assistant teaching aid
Technical field
The utility model relates to a kind of teaching aid, relates in particular to a kind of used in English writing assistant teaching aid.
Background technology
English is an international language, very little just beginning of students studies English, English is the same with Chinese, be divided into reading, write, the part such as hearing, in the process of writing, student can not well adapt to the special tectonic of English letter, needs by the exercise-book of line auxiliary, but but crooked unavoidably while writing on blackboard, even connecting teacher can not very neat writing.
Utility model content
The purpose of this utility model: a kind of used in English writing assistant teaching aid is provided, can recycles chalk dust line, economize on resources, be conducive to English writing on the blackboard.
To achieve these goals, the technical solution of the utility model is:
A kind of used in English writing assistant teaching aid, comprises chalk ash containers, framework, a pair of chute, a pair of handle, multiple sucker, multiple pulley and four cotton ropes of taking; Described chalk ash containers is the hollow box of upper end open, described framework is arranged in described chalk ash containers, described framework is the frame type structure of hollow, described a pair of chute is separately positioned on two madial walls of described framework, described a pair of top of taking handle and be separately positioned on described framework, the described handle of taking is vertical with described framework, the described height of taking handle is greater than the degree of depth of described chalk ash containers, described multiple suckers are separately positioned on the rear end face of described framework, on the two side of described framework, are respectively equipped with graduation mark; Described multiple pulleys are separately positioned in described a pair of chute, and described cotton rope and described framework are isometric, and the two ends of four described cotton ropes are connected with described pulley respectively, the chute described in being positioned at, described cotton rope and described pulley synchronous slide; In described cotton rope, be provided with elongated cavity, in described cavity, be provided with spring, described cotton rope and described spring are isometric, and the outer wall of described cotton rope is provided with many lines, and many described lines mutually intersect and are latticed; The bottom of described chalk ash containers is provided with projection, described projection is dome shape, described protruding height is no more than the half of the degree of depth of described chalk ash containers, described protruding area is less than the area of described framework, described projection is provided with many wire casings, many described wire casings are horizontally set and are parallel to each other, and four described cotton ropes are corresponding being embedded in many described wire casings respectively.
Above-mentioned used in English writing assistant teaching aid, wherein, the outer surface of described cotton rope can be also that the surperficial honeycomb hole of cellular, described cotton rope is no more than 2mm.
Above-mentioned used in English writing assistant teaching aid, wherein, described chalk ash containers is provided with lid, and described lid is flexibly connected with described chalk ash containers.
Above-mentioned used in English writing assistant teaching aid, wherein, is provided with Air Filter in described lid, and one end of described Air Filter is fixedly connected with described lid, and described Air Filter cover cap is on described chalk ash containers.
The utility model can be recycled chalk dust, reduces the airborne dust of the wasting of resources and chalk dust; Can help English teacher to write writing on the blackboard, in good order being conducive to of writing on the blackboard imparts knowledge to students.
Accompanying drawing explanation
Fig. 1 is the top view of the utility model used in English writing assistant teaching aid.
Fig. 2 is the structural representation of the chalk ash containers of the utility model used in English writing assistant teaching aid.
Fig. 3 is the structural representation of the cotton rope of the utility model used in English writing assistant teaching aid.
The specific embodiment
Further illustrate embodiment of the present utility model below in conjunction with accompanying drawing.
Refer to accompanying drawing 1 to shown in accompanying drawing 3, a kind of used in English writing assistant teaching aid, comprises chalk ash containers 1, framework 2, a pair of chute 3, a pair of handle 4, multiple sucker 5, multiple pulley 6 and four cotton ropes 7 of taking, described chalk ash containers 1 is the hollow box of upper end open, described framework 2 is arranged in described chalk ash containers 1, described framework 2 is frame type structures of hollow, described a pair of chute 3 is separately positioned on two madial walls of described framework 1, described a pair of top of taking handle 4 and be separately positioned on described framework 2, the described handle 4 of taking is vertical with described framework 2, the described height of taking handle 4 is greater than the degree of depth of described chalk ash containers 1, be convenient to take out fast framework 2, described multiple suckers 5 are separately positioned on the rear end face of described framework 2, when use, can framework 2 be adsorbed on blackboard by sucker 5, on the two side of described framework 2, be respectively equipped with graduation mark 8, can be used for regulating the spacing distance of cotton rope 7, described multiple pulleys 6 are separately positioned in described a pair of chute 3, described cotton rope 7 is isometric with described framework 2, the two ends of four described cotton ropes 7 are connected with described pulley 6 respectively, be positioned at described chute 3, described cotton rope 7 and described pulley 6 synchronous slides, according to the position of graduation mark adjusting cotton rope 7, in described cotton rope 7, be provided with elongated cavity, in described cavity, be provided with spring 9, described cotton rope 7 is isometric with described spring 9, the outer wall of described cotton rope 7 is provided with many lines 10, and described many lines 10 mutually intersect and are latticed, and chalk dust is embedded in the lines 10 of cotton rope 7, pull-up cotton rope 7, due to the elasticity of spring 9, cotton rope 7 in the process of blackboard of rebounding by chalk dust springing on blackboard, form lines, the bottom of described chalk ash containers 1 is provided with projection 11, described projection 11 is dome shape, the height of described projection 11 is no more than the half of the degree of depth of described chalk ash containers 1, the area of described projection 11 is less than the area of described framework 2, described projection 11 is provided with many wire casings 12, and described many wire casings 12 are horizontally set and are parallel to each other, and four described cotton ropes 7 are corresponding being embedded in described many wire casings 12 respectively, cotton rope 7 can fully contact with chalk dust, is convenient to line and uses.
The outer surface of described cotton rope 7 can be also cellular, identical with lines 10 functions, and for chalk dust being adsorbed on to the surface of cotton rope 7, the surperficial honeycomb hole of described cotton rope 7 is no more than 2mm.
Described chalk ash containers 1 is provided with lid 13, and described lid 13 is flexibly connected with described chalk ash containers 1, and can prevent from dropping time, chalk dust spills.
In described lid 13, be provided with Air Filter 14, one end of described Air Filter 14 is fixedly connected with described lid 13, and described Air Filter 14 cover caps, on described chalk ash containers 1, can prevent chalk dust airborne dust.
In sum, the utility model can be recycled chalk dust, reduces the airborne dust of the wasting of resources and chalk dust; Can help English teacher to write writing on the blackboard, in good order being conducive to of writing on the blackboard imparts knowledge to students.