阅读说明：本技术 压力静电吸尘黑板擦 (Pressure electrostatic dust-absorbing blackboard eraser ) 是由 姚雨妍 于 2018-07-23 设计创作，主要内容包括：本发明公开压力静电吸尘黑板擦,包括装置本体,装置本体的上侧设计有压敏电阻,装置本体的内部一侧设置有电池盒,在装置本体的内部设计有粉笔灰收集装置：顶部设计有收集室,收集室上侧设计有后盖,收集室两侧设计有滤网,滤网连接排气管道,在收集室的下侧收集管道内设计有风扇,风扇下侧是漏斗集气仓,漏斗集气仓下侧为收集进气孔,收集进气孔位于毛刷根部。在装置毛刷根部设计有吸风孔,在擦拭的时候吸粉尘；装置的吸入槽设计为漏斗模式,可以提高吸入效率。(The invention discloses a pressure electrostatic dust collection blackboard eraser, which comprises a device body, wherein a piezoresistor is designed on the upper side of the device body, a battery box is arranged on one side inside the device body, and a chalk dust collection device is designed inside the device body: the design of top has the collection room, and the design of collection room upside has the back lid, and the design of collection room both sides has the filter screen, and exhaust duct is connected to the filter screen, is designed with the fan in the downside collection pipeline of collection room, and the fan downside is funnel gas collection storehouse, and funnel gas collection storehouse downside is for collecting the inlet port, collects the inlet port and is located the brush root. The root of the hairbrush of the device is provided with an air suction hole for sucking dust during wiping; the suction groove of the device is designed into a funnel mode, so that the suction efficiency can be improved.)

1. Pressure static dust absorption blackboard eraser, its characterized in that, including the device body, the upside design of device body has piezo-resistor, and inside one side of device body is provided with the battery case, has chalk dust collection device in the internal design of device body: the design of top has the collection room, and the design of collection room upside has the back lid, and the design of collection room both sides has the filter screen, and exhaust duct is connected to the filter screen, is designed with the fan in the downside collection pipeline of collection room, and the fan downside is funnel gas collection storehouse, and funnel gas collection storehouse downside is for collecting the inlet port, collects the inlet port and is located the brush root.

2. A pressure electrostatic dust collection blackboard eraser according to claim 1, wherein the battery is disposed in the case and replaceable, and the battery is electrically connected to the fan and the varistor.

3. A pressure electrostatic suction blackboard eraser according to claim 1, wherein the collection air inlet holes are discretely provided at the brush root.

4. A pressure electrostatic suction blackboard eraser according to claim 1, wherein the rear cover of the collecting chamber is detachable.

Technical Field

The invention relates to a pressure electrostatic dust collection blackboard eraser device, and belongs to the field of design and application of blackboard erasers.

Background

The blackboard eraser device used at present is simple in structure, but chalk powder can scatter in the air when the blackboard eraser device is used every time, and the chalk powder can be sucked into the body by teachers and students in front rows, so that health is affected.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a pressure electrostatic dust collection blackboard eraser, wherein a piezoresistor is designed in a rectangular hollow long plate of the device, and the resistance value is reduced when the device is used every time; the root of the hairbrush of the device is provided with an air suction hole for sucking dust during wiping; the suction groove of the device is designed into a funnel mode, so that the suction efficiency can be improved.

The invention thus relates to the following:

pressure static dust absorption blackboard eraser, including the device body, the upside design of device body has piezo-resistor, and inside one side of device body is provided with the battery case, has chalk dust collection device in the inside design of device body: the design of top has the collection room, and the design of collection room upside has the back lid, and the design of collection room both sides has the filter screen, and exhaust duct is connected to the filter screen, is designed with the fan in the downside collection pipeline of collection room, and the fan downside is funnel gas collection storehouse, and funnel gas collection storehouse downside is for collecting the inlet port, collects the inlet port and is located the brush root.

The pressure electrostatic dust collection blackboard eraser is characterized in that the battery box is internally provided with a storage battery which is replaceable, and the storage battery is electrically connected with the fan and the piezoresistor.

The pressure electrostatic dust collection blackboard eraser as described above, wherein the collection air inlet is discretely arranged at the root of the brush.

The pressure electrostatic dust collection blackboard eraser as described above, wherein the rear cover of the collection chamber is detachable.

Compared with the prior art, the method has the following advantages:

1. according to the pressure electrostatic dust collection blackboard eraser, the air suction hole is formed in the root of the brush of the blackboard eraser, and dust is sucked in the wiping process.

2. According to the pressure electrostatic dust collection blackboard eraser, the suction groove of the device is designed to be in a funnel mode, and the suction efficiency can be improved.

Drawings

FIG. 1 is a schematic view of a pressure electrostatic dust collection blackboard eraser;

in the figure: 1-the apparatus body; 2-a voltage dependent resistor; 3-an exhaust duct; 4-a battery box; 5, a funnel gas collecting bin; 6, a hairbrush; 7-a fan; 8, a rear cover; 9-a collection chamber; 10, filtering by using a filter screen; 11-collection intake.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present application more clear and obvious, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

As shown in fig. 1, the pressure electrostatic dust collection blackboard eraser comprises an apparatus body 1, wherein a piezoresistor 2 is designed on the upper side of the apparatus body 1, when the apparatus body is used, the resistance value is reduced, a circuit is connected, a battery box 4 is arranged on one side inside the apparatus body 1, and a chalk dust collection device is designed inside the apparatus body 1: the design of top has collection chamber 9, and the design of the 9 upside of collection chamber has back lid 8, and the design of the 9 both sides of collection chamber has filter screen 10, and exhaust duct 3 is connected to filter screen 10, and the design has fan 7 in collecting the pipeline at the downside of collection chamber 9, and 7 downside of fan are funnel gas collecting bin 5, and 5 downside in funnel gas collecting bin are for collecting inlet port 11, collect inlet port 11 and be located the brush root, and this structure is used for absorbing the dust.

The pressure electrostatic dust collection blackboard eraser is characterized in that the battery box 4 is internally provided with a storage battery which can be replaced and supplies power to the device, and the storage battery is electrically connected with the fan 7 and the piezoresistor 2.

The pressure electrostatic dust collection blackboard eraser as described above, wherein the collection air inlet holes 11 are discretely arranged at the root of the brush.

According to the pressure electrostatic dust collection blackboard eraser, the rear cover 8 of the collection chamber 9 can be detached, so that dust in the collection chamber 9 can be conveniently and intensively treated.

The working principle of the application is as follows: when the pressure electrostatic dust collection blackboard eraser is used every time, the resistance value of the piezoresistor 2 is reduced, the fan 7 is powered on, dust enters the collection chamber after entering the funnel air collection bin 5 through the collection air inlet hole 11, the two sides of the collection chamber 9 are provided with the exhaust pipelines, and the exhaust pipelines 3 are provided with the filter screens 10.

The foregoing is illustrative of one or more embodiments provided in connection with the detailed description and is not intended to limit the disclosure to the particular forms disclosed. Similar or identical methods, structures, etc. as used herein, or several technical derivations or substitutions made on the basis of the conception of the present application, should be considered as the protection scope of the present application.