Device for repetitive exercises of English letters
An English alphabet and repetitive technology, which is applied to the cleaning device of blackboard or slate, printing, office supplies, etc., can solve the problem that the English alphabet practice device cannot be reused, so as to improve the practice effect, good reusability and convenient use. Effect
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specific Embodiment approach 1
[0027] Such as Figure 1-10 Shown, a kind of English letter repetitive practice device comprises practice board 1, practice board fixing mechanism 2, horizontal bracket 3, vertical support 4, erasing mechanism 5, drawing line mechanism 6, word board holder 7 and angle Adjusting seat 8, described practice board 1 is connected in the practice board fixing mechanism 2, and practice board fixing mechanism 2 is connected on the horizontal bracket 3; The described horizontal bracket 3 is fixedly connected on the upper end of the vertical support 4, and the The lower end is fixedly connected to the angle adjustment seat 8; the upper end of the erasing mechanism 5 is slidably connected to the horizontal bracket 3, the middle end of the erasing mechanism 5 is slidably connected to the vertical support 4, and the lower end of the erasing mechanism 5 is fixed Be connected on the angle adjustment seat 8; Described line-drawing mechanism 6 and word board holder 7 are respectively provided ...
specific Embodiment approach 2
[0028] Such as Figure 1-10As shown, the practice board fixing mechanism 2 includes an L-shaped side plate 2-1, a base plate 2-2, a front baffle plate 2-3, a screw rod 2-4, a turning block 2-5 and a fixed plate 2-6; The left and right ends of the top surface of the base plate 2-2 are respectively fixedly connected to an L-shaped side plate 2-1, and the front end of the top surface of the base plate 2-2 is fixedly connected to the front baffle plate 2-3; -2 and two L-shaped side plates 2-1 in the sliding groove; the front end of the screw 2-4 is fixedly connected to the rotary block 2-5, and the middle end of the screw 2-4 is screwed to the fixed plate 2-6 Above, the fixed plate 2-6 is fixedly connected to the horizontal bracket 3; the rear end of the screw rod 2-4 is connected to the front baffle 2-3 through a bearing with seat for rotation fit; the bottom plate 2-2 is connected by sliding fit On the top surface of the cross bracket 3. When the practice board fixing mechanis...
specific Embodiment approach 3
[0029] Such as Figure 1-10 As shown, the front end of the horizontal bracket 3 is provided with a front sliding hole, and the middle end of the horizontal bracket 3 is provided with a horizontal sliding hole penetrating left and right, and the horizontal sliding hole is connected to the front sliding hole.
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