Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
An English teaching and blackboard technology, applied in the field of English teaching appliances, can solve problems such as unclear, laborious, and inconvenient writing, and achieve the effect of preventing deformation
Active Publication Date: 2016-06-22
NANYANG INST OF TECH
View PDF11 Cites 10 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
Its shortcoming is: this kind of blackboard eraser needs people to hold the slider to slide, people are more laborious in the pulling process, and the degree of automation is not high. The volume is large, the operation is time-consuming and laborious, and the drawn lines are inconsistent and unclear; more importantly, the drawn lines are not straight due to uneven force during the drawing process, which makes it difficult to control the strength and balance , not beautiful, greatly affecting the quality of teaching
But it still has the following problems: 1. The handwriting on the blackboard cloth is cleaned by lotion, and the blackboard cloth needs to be completely immersed in the lotion. After cleanin
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0030] Embodiment 1: as figure 1 , 2 , 3, 4, 5, and 6, an English teaching device includes several magnet strips 9 arranged in the blackboard and slide rails 1 arranged at the left and right ends of the blackboard 3, and a roller 2 is arranged in the slide rail. Sliding plate 7, the upper side of described sliding plate 7 is provided with a scraper, the lower side of described sliding plate 7 is provided with base plate 24, and one end of described base plate 24 contacting with blackboard is provided with soft wool 25, and described sliding plate 7 two ends are provided with baffle plate , the baffle plate, base plate 24, scraper 18 contact with the blackboard to form an iron particle accommodating cavity 19, in which several iron particles 20 with white paint on the outer periphery are arranged in the iron particle accommodating cavity, and the upper part of the blackboard is provided with a drive for driving The driving mechanism for the slide plate to move up and down, the...
Embodiment 2
[0043] The difference between Embodiment 2 and Embodiment 1 is that the suction force of the iron particles 20 after being absorbed is greater than the radial bending force of the soft hairs 25, and the iron particles are placed in the iron particle holding chamber, and the radial bending force of the soft hairs 25 The force is greater than the pressure of the iron particles on the soft bristles 25.
[0044] The wear-resistant rubber layer is composed of the following raw materials in parts by weight, 50 parts of chloroprene rubber, 20 parts of styrene-butadiene rubber, 6 parts of magnesium oxide, 8 parts of carbon black, 7 parts of paraffin, 3 parts of stearic acid, 6 parts of amine.
Embodiment 3
[0045] The difference between embodiment 3 and embodiment 1 is that a collection tank 10 is provided under the blackboard to prevent chalk or collect individual falling iron particles. The wear-resistant rubber layer is composed of the following raw materials in parts by weight, 70 parts of chloroprene rubber, 25 parts of styrene-butadiene rubber, 8 parts of magnesium oxide, 10 parts of carbon black, 11 parts of paraffin, 6 parts of stearic acid, 8 parts of amine.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses an English teaching device. The English teaching device comprises a plurality of magnet strips arranged in a blackboard and sliding rails arranged at left and right ends of the blackboard, wherein a sliding plate provided with rollers is arranged in the sliding rails; a scraper plate is arranged on the upper side of the sliding plate; a bottom plate is arranged on the lower side of the sliding plate; soft bristles are arranged at one end, in contact with the blackboard, of the bottom plate; baffles are arranged at two ends of the sliding plate; the baffles, the bottom plate and the scraper plate are in contact with the blackboard to form an iron particle accommodating cavity; a plurality of iron particles with the peripheries coated with a white coating are arranged in the iron particle accommodating cavity; a driving mechanism used for driving the sliding plate to move up and down is arranged at the upper part of the blackboard; a blackboard wiping mechanism is arranged on the sliding plate and connected with a vibratory dust collection mechanism; and a rod body of an electric telescopic rod is provided with a guide sleeve. A teacher can perform line drawing in a long distance to draw a four-line-grid specification, the blackboard can be wiped while the line drawing is carried out, and dust can be collected, so that the teacher and students can be prevented from absorbing the dust; and the device runs stably and does not damage the blackboard.
Description
technical field [0001] The invention relates to the technical field of English teaching tools, in particular to an English teaching device. Background technique [0002] At present, the traditional English blackboard teaching is still dominant. In basic writing training and writing teaching, English standard blackboard writing is widely used. In order to write standardly, teachers need to draw the corresponding English four-line grid on the blackboard. When drawing the grid, use a long ruler to draw four lines line by line There are also teaching equipment such as a four-line grid device, an English three-line marking device, a parallel line marking aid, a blackboard with a ruler, and a blackboard for English and music teaching, although the purpose of drawing a grid can be achieved. , but it is a waste of time to carry utensils and draw grids with them at all times. [0003] The English teaching four-grid drawing tool in the prior art, such as a teaching blackboard disclo...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more