| 摘要 |
An electronic blackboard, comprising a board (1), four frames (2) and four corners (3), wherein the board (1) contains a writable pre-coated layer (11), a foamed layer (13) and a back board (15); each frame (2) comprises a frame body (21), and several clamping stop blocks (25); the frame body (21) contains a top cover board (211), a light filtering board (213), an upper baffle (215), and a side baffle (217); the light filtering board (213) is welded between the top cover board (211) and the upper baffle (215) to form a whole; the side baffle (217) extends outwards perpendicularly and is provided with a fixed plugboard (2171); the back end of the fixed plugboard (2171) extends downwards perpendicularly and is provided with a locking board (2175); the clamping stop blocks (25) are installed at the lower end of the locking board (2175), wherein each clamping stop block (25) comprises an engagement part (251), a stop part (255) is provided at the lower end of the engagement part (251); each corner (3) comprises a lower corner cover (31) and an upper corner cover (35); the lower corner cover (31) contains a lower cover body (311); and the upper corner cover (35) contains an upper cover body (351), wherein the outer side of the upper cover body (351) is bent downwards and is provided with a side board (353), and a sealing strip (355) is provided at the contact position between the inner-side end of the upper cover body (351) and the writable pre-coated layer (11). The electronic blackboard is firm in structure, does not deform in an operating environment, has a good water-proof function and is safe in use. |
