CN2515040Y

CN2515040Y - Automatic chalk dust absorption type blackboard eraser

Info

Publication number: CN2515040Y
Application number: CN 01257992
Authority: CN
Inventors: 邢长生
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-11-16
Filing date: 2001-11-16
Publication date: 2002-10-09
Anticipated expiration: 2011-11-16

Abstract

The utility model relates to an automatic chalk dust absorption type blackboard eraser which belongs to the technical field of teaching articles, particularly an automatic chalk dust absorption type blackboard eraser which sucks the dust for preventing the dust from floating. The utility model has the technical proposal that a wiper plate is fixed to a wiper plate frame; a ventilating separation net is arranged in a hollow bracket; the bracket on one side of the separation net is connected with the wiper plate frame provided with a plurality of small holes; the bracket on the other side is provided with an induced draught plant. The utility model can automatically suck the dust wiped by the wiper plate by making use of the induced draught plant to avoid the float of the dust and ensure the clean environment, the dust can not be sucked by people either, and the utility model is profitable for users' health.

Description

Automatic dust absorption formula chalkboard eraser

Technical field:

The utility model relates to the realia technical field, refers in particular to a kind of dust the suction in order to avoid its automatic dust absorption formula chalkboard eraser that arbitrarily descends slowly and lightly, floats.

Background technology:

At daily aspects such as teaching, people can use chalk, utilize chalk to write on blackboard; After being write completely, the place of writing the dust that is attached on the blackboard can be wiped out, so that write once more; But with the chalkboard eraser wiping time, dust can descend slowly and lightly everywhere, so, not only influences the health of surrounding environment at present, and often making surrounding environment is the dust of white everywhere, also can make the attached dust of having expired on user's clothes; And, owing to the dust lighter weight, can in air, float, may part be sucked by people on every side, have influence on the healthy of people.

Summary of the invention:

The purpose of this utility model is to provide a kind of and dust can be sucked in the chalkboard eraser, in order to avoid dust arbitrarily descends slowly and lightly, the automatic dust absorption formula chalkboard eraser that floats.

The utility model is achieved by the following technical solution: Wiper plate is fixed on the wiping grillage, be connected with a breathable separation net in the support of hollow, on the support of separation net one side, be connected with the wiping grillage, the support of opposite side is provided with an extractor fan, and is provided with some apertures on the wiping grillage; The end cap of extractor fan is connected with the ora terminalis of support, and end cap is provided with some air-vents; Motor is connected with end cap by motor fixing frame, and places in the hole that end cap surrounds, and the fan that is connected with motor output shaft also places in this hole; Power supply is connected with motor by power switch; Aperture on the wiping grillage is positioned at the periphery of wiping grillage.

The utility model utilizes extractor fan that Wiper plate is wiped away the dust that falls and sucks automatically in it, has avoided arbitrarily the descending slowly and lightly of dust, has floated, and guarantees the neat and tidy of environment, and dust can not sucked by the people, helps guaranteeing that the user's is healthy.

Description of drawings:

Below in conjunction with accompanying drawing the utility model is further specified:

Accompanying drawing 1 is the utility model stereogram;

Accompanying drawing 2 is another visual angle stereogram of the utility model;

Accompanying drawing 3 is the utility model partial exploded view;

Accompanying drawing 4 is the utility model three-dimensional exploded view;

Accompanying drawing 5 is another embodiment schematic diagram of the utility model.

The specific embodiment:

See accompanying drawing 1～5, Wiper plate 1 of the present utility model is fixed on the wiping grillage 2, is connected with a breathable separation net 4 in the support 3 of hollow, and this separation net 4 can stop that tiny dust passes; Be connected with wiping grillage 2 on the support 3 of separation net 4 one sides, the support of opposite side is provided with an extractor fan 5, and is provided with some apertures 21 on wiping grillage 2; Wiping grillage 2, support 3, separation net 4 surround a space, and this space is used for the ccontaining dust that is inhaled into, and also a hole can be set on the support 3 that surrounds this space, when the dust of this collection space reaches certain amount, this hole can be opened, dust is poured out, so that utilize next time; Extractor fan 5 comprises end cap 51, motor 52, motor fixing frame 53, power supply 54, power switch 55, fan 56; End cap 51 is connected with the ora terminalis of support 3, and end cap 51 is provided with some air-vents 511; Motor 52 is connected with end cap 51 by motor fixing frame 53, and places in the hole that end cap 51 surrounds, and the fan 56 that is connected with motor 52 output shafts also places in this hole; Power supply 54 is connected with motor 52 by power switch 55; Aperture 21 on the wiping grillage 2 is positioned at the periphery of wiping grillage 2.

When using the utility model, earlier with power switch 55 closures, the power supply 54 of motor 52 is connected, motor 52 starts, its output shaft drives fan 56 and rotates, after fan 56 rotates, the air in the space that wiping grillage 2, support 3, separation net 4 are surrounded take out to, the opposite side of separation net 4, and the air-vent 511 from end cap 51 is extracted out; Thereby make the air pressure in the space that wiping grillage 2, support 3, separation net 4 are surrounded reduce, for keeping the air pressure in this space, new air is drawn into from the aperture 21 on the wiping grillage 2, therefore, when with Wiper plate 1 with dust after attachment wiping down, dust is promptly along with air is drawn in the space that wiping grillage 2, support 3, separation net 4 surround; Because the buffer action of separation net 4, can guarantee that dust can not extract out with air from the air-vent on the end cap 51 511.

The utility model can adopt direct current or AC power as power supply, can decide according to the field of employment during actual the use; When using alternating current, can be as shown in Figure 5, AC power is inserted AC power supply jack on the support 3 promptly can be motor 52 power supply is provided.

Claims

1, automatic dust absorption formula chalkboard eraser, Wiper plate (1) is fixed on the wiping grillage (2), it is characterized in that: be connected with a breathable separation net (4) in the support of hollow (3), on the support (3) of separation net (4) one sides, be connected with wiping grillage (2), the support of opposite side (3) is provided with an extractor fan (5), and is provided with some apertures (21) on wiping grillage (2).

2, automatic dust absorption formula chalkboard eraser according to claim 1 is characterized in that: extractor fan (5) comprises end cap (51), motor (52), motor fixing frame (53), power supply (54), power switch (55), fan (56); End cap (51) is connected with the ora terminalis of support (3), and end cap (51) is provided with some air-vents (511); Motor (52) is connected with end cap (51) by motor fixing frame (53), and places in the hole that end cap (51) surrounds, and the fan (56) that is connected with motor (52) output shaft also places in this hole; Power supply (54) is connected with motor (52) by power switch (55).

3, automatic dust absorption formula chalkboard eraser according to claim 1, it is characterized in that: the aperture (21) on the wiping grillage (2) is positioned at the periphery of wiping grillage (2).