CN85203567U - Electric dust catching eraser - Google Patents
Electric dust catching eraser Download PDFInfo
- Publication number
- CN85203567U CN85203567U CN 85203567 CN85203567U CN85203567U CN 85203567 U CN85203567 U CN 85203567U CN 85203567 CN85203567 CN 85203567 CN 85203567 U CN85203567 U CN 85203567U CN 85203567 U CN85203567 U CN 85203567U
- Authority
- CN
- China
- Prior art keywords
- collecting box
- ash collecting
- power drive
- electric dust
- grid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses an improved electric dust catching device, which is an electric dust catching eraser. The utility model is composed of a casing, an erasing device, a filtering device, a dust collecting box, a power drive device and a power supply, wherein, air inlet holes arranged uniformly are arranged on a supporting board of an erasing body, and a chamber is arranged between the supporting board and a base board of the power drive mechanism, the centre of the base board is provided with an air inlet, an involute-shaped blade hood is arranged outside blades of the power drive device board, the power drive device is provided with an air outlet communicated with the dust collecting box, an air exhausting mesh is arranged on the bottom part of the dust collecting box, and one side of the air exhausting mesh is provided with an air outlet mesh and is lined with the filter material.
Description
The utility model relates to a kind of improvement of electronic wiping dust exhaust apparatus, is a kind of electric dust absorption blackboard eraser specifically.
Existing electric dust absorption blackboard eraser is made up of housing, wiping arrangement, ash collecting box, Power Drive Unit and power supply.When erasing the board, start power switch, the limit air that will contain chalk dust that is close to sucks via the air admission hole on the wiping body gripper shoe, and chalk dust is gathered on the filter before the motor fan blade, fall into ash collecting box by the gravity effect, filtered air is discharged by steam vent.The fan blade of Power Drive Unit is a turbo blade, and motor is carbon-bearing brush, continuous excitation type.The shortcoming of (seeing GB2108434A) this electric dust absorption blackboard eraser is, chalk dust can be adsorbed and be blocked in because of the suction that rotation produced of turbo blade on screen pack and the filtering material when work, chalk dust is depended merely on gravity and is difficult to fall in the ash collecting box, after being blocked full chalk dust, filter screen and filtering material certainly will influence pick-up performance, and Power Drive Unit is a high-speed motor, thereby need shockproof structure, and causing complex process, monomer is heavy, cost is high, price is expensive.
Task of the present utility model be seek a kind of simple in structure, easily manufactured, pick-up performance is good, monomer weight is light, low-cost electric dust absorption blackboard eraser.
Task of the present utility model realizes in the following manner, between the base plate of the gripper shoe of wiping body and Power Drive Unit, establish a chamber, base plate central authorities open an air inlet, the fan blade outside of Power Drive Unit is provided with the blade cover of the involute-type of taking gas port out of, and this gas outlet communicates with ash collecting box.Ash collecting box bottom and one side have the exhaust grid and the grid of giving vent to anger, and lining is with the dust-absorbing filtering material on the exhaust grid and the grid of giving vent to anger.
Below in conjunction with accompanying drawing the utility model is described in detail.
Fig. 1 is the utility model structural representation, and (1) is motor among the figure, and (2) are blade cover, (3) be fan blade, (4) are the exhaust grid, and (5) are base plate, (6) be housing, (7) are power pack, and (8) are the power supply lid, (9) be the grid of giving vent to anger, (10) are gripper shoe, and (11) are wiping body, (12) be air admission hole, (13) are cavity, and (14) are air inlet, (15) be the gas outlet, (16) are ash collecting box.
Implementation method is, wiping body (11) is made with fabric, it can be felt, plastic foam, it also can be fibers material, be bonded on the gripper shoe (10) with strip or bulk, have air admission hole arranged in a uniform (12) on the gripper shoe (10), wiping body (11) and air admission hole (12) are alternately, gripper shoe (10) edge also has air admission hole (12), the diameter of each air admission hole (12) is between 2～3 millimeters, the area of all air admission holes (12) must not be gone up the area of air inlet (14) greater than base plate (5), gripper shoe (10) can also be enclosed all around with the shirt rim, its height is identical with wiping body thickness, and chalk dust spills when preventing to erase the board; Power Drive Unit adopts commercially available eddy current type motor (1) as WZY-1-131, and centrifugal fan (3) also is provided with the involute-type blade cover (2) of taking gas port (15) out of.Gas outlet (15) communicates with ash collecting box (16).Motor (1) per minute rotating speed is not less than 3000 to be changeed, and motor (1) axle is vertically mounted on the blade cover (2) by the centre bore of blade cover (2), and blade cover (2) is installed on the base plate (5).There is an air inlet (14) in base plate (5) central authorities over against motor (1) axle place, in the one side that blade cover (2) is installed, are the boss that central point has an involute-type with air inlet (14) center, and the boss size is coincide with blade cover (2) borderline phase.There are one 2～4 millimeters chimbs and gripper shoe (10) to join around the lower edge of base plate (5), make and form a chamber (13) between gripper shoe (10) and the base plate (5), when electric dust absorption blackboard eraser is in running order, form certain even negative pressure in the chamber (13).Ash collecting box (16) is cuboid, and the bottom has exhaust grid (4), and one side has the grid of giving vent to anger (9), and the inner face lining of exhaust grid (4) is with the material of adsorption filtration chalk dust.As felt or chemical ﹠ blended fabric, the inner face of the grid of giving vent to anger (9) serves as a contrast with woven wire or nylon wire, and ash collecting box (16) links to each other with guide groove by guide rail with base plate (5), and can move relative to each other.Ash collecting box (16) and blade cover (2) be close-fitting mutually.One side of housing (6) has steam vent, the inboard filtering material that covers of steam vent, as nylon wire or woven wire, the opposite side of housing (6) is equipped with power switch and switch frame, power supply can be interior storage, also external, supply voltage is selected 3～6 volts for use, selects duty or halted state by power switch.
Housing (6), gripper shoe (10), base plate (5), fan blade (3), blade cover (2), ash collecting box (16), power pack (7), power supply lid (8), power switch and switch frame are made of plastics.
When erasing the board, start power switch,, chalk dust is sucked via air admission hole (12), enter blade cover (2) by air inlet (14) because the rotation of fan blade (3) forms even negative pressure state in the chamber (13).Because the rotation of the orientation of fan blade (3) makes chalk dust be got rid of into ash collecting box (16) by the gas outlet (15) of blade cover (2), because of being lined with filtering material on the ash collecting box base bleed grid (4), chalk dust just is trapped within the ash collecting box; And filtered air is discharged by the exhaust grid (4) of ash collecting box (16) and the steam vent of housing (6).
This electric dust absorption blackboard eraser dust collection efficiency height, simple in structure, it is convenient to implement, and helps to ensure teachers and students' health.
Claims (3)
1, a kind of by housing, wiping arrangement, the electric dust absorption blackboard eraser that filter, ash collecting box, Power Drive Unit and power supply are formed, it is characterized in that: between the gripper shoe [10] of wiping body [11] and the base plate [5] of Power Drive Unit a chamber [13] is arranged, there is an air inlet [14] in base plate [5] central authorities, the fan blade of Power Drive Unit [3] outside is provided with the blade cover [2] of the involute-type of taking gas port [15] out of, and gas outlet [15] communicate with ash collecting box [16].
2, a kind of electric dust absorption blackboard eraser according to claim 1, the bottom that it is characterized in that ash collecting box (16) has exhaust grid (4), the one side of ash collecting box (16) has the grid of giving vent to anger (9), goes up lining with the dust-absorbing filtering material at exhaust grid (4) and the grid of giving vent to anger (9).
3, a kind of electric dust absorption blackboard eraser according to claim 1 and 2 is characterized in that housing (6), wiping body (11), gripper shoe (10), base plate (5), fan blade (3), blade cover (2), ash collecting box (16), power pack (7), power supply lid (8), power switch and switch frame are made of plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85203567 CN85203567U (en) | 1985-08-30 | 1985-08-30 | Electric dust catching eraser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85203567 CN85203567U (en) | 1985-08-30 | 1985-08-30 | Electric dust catching eraser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85203567U true CN85203567U (en) | 1986-05-07 |
Family
ID=4799085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85203567 Ceased CN85203567U (en) | 1985-08-30 | 1985-08-30 | Electric dust catching eraser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85203567U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106142939A (en) * | 2015-04-14 | 2016-11-23 | 刘乐凝 | A kind of chalkboard eraser with chalk ash collection storehouse |
| CN106142938A (en) * | 2015-03-26 | 2016-11-23 | 刘乐凝 | A kind of suction powder formula chalkboard eraser automatically |
| CN109624559A (en) * | 2019-01-28 | 2019-04-16 | 王晨羽 | Multifunction dust removing box |
| CN110228315A (en) * | 2019-07-03 | 2019-09-13 | 上海理工大学 | A kind of turbine centrifugal negative pressure absorbent blackboard eraser using vibrating reed vibration hairbrush |
-
1985
- 1985-08-30 CN CN 85203567 patent/CN85203567U/en not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106142938A (en) * | 2015-03-26 | 2016-11-23 | 刘乐凝 | A kind of suction powder formula chalkboard eraser automatically |
| CN106142939A (en) * | 2015-04-14 | 2016-11-23 | 刘乐凝 | A kind of chalkboard eraser with chalk ash collection storehouse |
| CN109624559A (en) * | 2019-01-28 | 2019-04-16 | 王晨羽 | Multifunction dust removing box |
| CN110228315A (en) * | 2019-07-03 | 2019-09-13 | 上海理工大学 | A kind of turbine centrifugal negative pressure absorbent blackboard eraser using vibrating reed vibration hairbrush |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right |
Termination date: 19861119 |
|
| CE01 | Termination of patent right |