Adsorption type raise dust suppression blackboard eraser
A blackboard eraser and adsorption technology, applied in the field of blackboard eraser, can solve the problems of blackboard loss, hazards, dust splashing, etc., and achieve the effect of not being lost
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Embodiment 1
[0044] see Figure 1-Figure 5 As shown, the purpose of this embodiment is to provide an adsorption type dust suppression type blackboard eraser, comprising a blackboard body 100, and the blackboard body 100 at least includes:
[0045] Fixed plate 1001, fixed plate 1001 is installed on the end of blackboard body 100, and the surface of fixed plate 1001 is provided with chute 10012, and the inside of chute 10012 is provided with several groups of positioning springs 10013, and one end of locating spring 10013 is installed with fixed block 10014 , the fixed block 10014 is fixedly connected with the chute 10012, the other end of the positioning spring 10013 is provided with a stopper 10015, and the stopper 10015 is slidably connected with the chute 10012, and the surface close to the chute 10012 is provided with a slide cavity 10011, and the slide cavity 10011 A slide plate 111 is slidingly connected inside, and a shaft is provided on one side of the bottom of the slide plate 111,...
Embodiment 2
[0051] In order to facilitate personnel to move the position of the blackboard eraser body 112, the difference between this embodiment and Embodiment 1 is that please refer to Figure 6 and Figure 7 Shown:
[0052] The surface of the fixed plate 1001 is provided with a mounting block 116, the surface of the mounting block 116 is equipped with a connecting spring 1161, and one end of the connecting spring 1161 is fixedly installed on the surface of the slide plate 111, the side of the slide plate 111 is connected with a rope body 1162, and the side of the blackboard body 100 A mounting frame 1164 is provided, and a shaft ring 1165 is installed on the surface of the mounting frame 1164. The shaft ring 1165 is fixedly connected with the rope body 1162. The other end of the shaft ring 1165 is equipped with a shaft disc 1166. When the shaft disc 1166 rotates, the shaft ring 1165 Rotate, the shaft ring 1165 rotates and wraps around the rope body 1162, and the rope body 1162 is pul...
Embodiment 3
[0056] In order to make the blackboard eraser body 112 further assist the teaching, the difference between this embodiment and Embodiment 1 is that please refer to Figure 8-Figure 10 Shown:
[0057] The side of blackboard eraser body 112 is provided with slide rail 1122, and the inside of slide rail 1122 is slidingly connected with slide block 117, and the surface of slide block 117 is provided with fixed cavity 1171, and fixed spring 1172 is installed in the inside of fixed cavity 1171, and the fixed cavity 1171 There is a chalk body 1173 plugged inside, which cannot satisfy the use of teaching tools for schools in poor mountainous areas. When teaching drawing on the surface of the blackboard body 100, for example: when drawing a circle or arc, the teacher cannot Accurately draw a circle, the chalk can be inserted into the fixed cavity 1171, the blackboard eraser body 112 rotates, that is, the blackboard eraser body 112 drives the slider 117 to rotate in an arc, the chalk bo...
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