Dry-wet dual-purpose flow-guiding and dust-removing device of blackboard for English teaching

Abstract

The invention discloses a dry-wet dual-purpose flow-guiding and dust-removing device of a blackboard for English teaching. The dry-wet dual-purpose flow-guiding and dust-removing device mainly comprises an outer frame, a filter shell, an air pump, sliding frames, a dust remover, a double-acting head, a water tank, a water pump and a side plate, a decorative plate is fixedly installed on the frontside of the outer frame through bolts, the length size of the decorative plate is consistent with the outline of the blackboard, a sliding sleeve is fixedly mounted at the bevel of the front side of the outer frame, a sliding rod is installed in the middle of the sliding sleeve in a penetrating and sliding connection mode, the sliding frames are fixedly installed at the end of the sliding rod, andthe side plate is installed between the two sliding frames in a sliding connection mode. The dry-wet dual-purpose flow-guiding and dust-removing device is reasonable in structural design, rapid in clamping and assembling, capable of being rapidly and reliably installed and more convenient to disassemble, a conventional blackboard can be directly expanded, and the upgrading and updating cost of aschool is saved; and suction dust removal during use and water spraying cleaning during class can be carried out, smooth suction is guaranteed through an unpowered vibration structure, and through thearrangement of the double-acting head and the utilization effect of the device and space, stable internal operation is guaranteed, few driving elements are used, the control process is more convenient, and the manufacturing cost can be reduced.

Description

technical field [0001] The invention relates to a diversion and dust removal device, in particular to a diversion and dust removal device for both dry and wet English teaching blackboards. Background technique [0002] Teaching English is the process of teaching English to people who may or may not be their first language. English teaching involves a variety of professional theoretical knowledge, including linguistics, second language acquisition, lexicology, syntax, stylistics, corpus theory, cognitive psychology, etc. English teaching is a step-by-step process, whether it is for people whose first language is English or not, English learning is crucial in today's rapid globalization. [0003] When carrying out English teaching, because there are many blackboard writings, the blackboard is wiped frequently, which leads to powder pollution and affects the teacher's health. The existing blackboard structure is simple, its own air drainage and cleaning are inconvenient, and t...

AI Technical Summary

Problems solved by technology

[0003] During English teaching, because there are many writing on the blackboard, the number of times to clean the blackboard will lead to powder pollution and affect the teacher's health. The existing blackboard structure is simple, its own air drainage and cleaning are inconvenient, and the environment is poor

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