Multi-functional environmentally friendly dust absorbing blackboard device
A multifunctional, blackboard technology, applied in the field of teaching aids, can solve problems such as endangering the lungs, and achieve the effect of reducing injuries
Inactive Publication Date: 2018-12-07
柏涛涛 +1
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Problems solved by technology
[0002] Existing schools still use chalk and blackboards in the use of blackboards, but this blackboard will produce a lot of dust when it is wiped. If this dust is inhaled, it will harm the lungs. Therefore, a new type of Blackboard device to reduce dust generation
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[0023] The present invention is specifically described below in conjunction with accompanying drawing, as Figure 1-7 As shown, a multifunctional environment-friendly vacuuming blackboard device includes a blackboard frame 1, the four corners of the rear of the blackboard frame 1 are provided with fixing devices, the front surface of the blackboard frame 1 is provided with a blackboard device, and the left and right sides of the blackboard frame 1 The ventilation plate 2 is fixedly installed on the side, and the ventilation plate 2 is evenly opened with three ventilation holes 3 from top to bottom. Connect with the main pipe 6, the left and right ends of the lower part of the blackboard frame 1 are provided with lifting devices, the lower part of the lifting device is provided with a receiving plate 7, and the upper part of the receiving plate 7 is provided with a dust holding box device, and the blackboard device includes mobile double slots 8, The mobile double slot 8 is fix...
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The invention discloses a multi-functional environmentally friendly dust absorbing blackboard device. The multi-functional environmentally friendly dust absorbing blackboard device comprises a blackboard frame body. The four corners of the rear portion of the blackboard frame body are provided with fixing devices. A blackboard device body is arranged on the front surface of the blackboard frame body. Ventilating plates are fixedly installed on the left and right sides of the blackboard frame body. Three ventilating holes are evenly formed in each ventilating plate from top to bottom and provided with ventilating nets. An air intake pipe is arranged in each ventilating net. The air intake pipes are connected with header pipes. Lifting devices are arranged at the left and right ends of the lower portion of the blackboard frame body. A bearing plate is arranged on the lower portions of the lifting devices. A dust accommodating box device is arranged on the upper portion of the bearing plate. A particle detecting device is arranged on the upper left side of the blackboard frame body. An automatic control device is arranged beside the particle detecting device and comprises an automaticcontrol box body. An automatic control chip is arranged in the automatic control box body. A blackboard control device is arranged on the left side of the blackboard frame body. The multi-functionalenvironmentally friendly dust absorbing blackboard device has the advantages of being simple in structure and strong in practicability.
Description
technical field [0001] The invention relates to the related field of teaching appliances, in particular to a multifunctional environment-friendly dust-absorbing blackboard device. Background technique [0002] Existing schools still use chalk and blackboards in the use of blackboards, but this blackboard will produce a lot of dust when it is wiped. If this dust is inhaled, it will harm the lungs. Therefore, a new type of Blackboard device to reduce dust generation. Contents of the invention [0003] The purpose of the present invention is to solve the above-mentioned problems, and has designed a kind of multifunctional environment-friendly dust-absorbing blackboard device. [0004] To achieve the above object, the technical solution of the present invention is a multi-functional environmental protection dust-absorbing blackboard device, comprising a blackboard frame, the four corners of the rear of the blackboard frame are provided with fixing devices, the front surface o...
Claims
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IPC IPC(8): B43L21/02B43L1/04
Inventor 柏涛涛柏伟伟
Owner 柏涛涛