CN211251999U - Water mist dust fall blackboard eraser - Google Patents

Abstract

The utility model provides a water smoke dust fall blackboard eraser, box at the bottom of the rectangle that is equipped with the cavity including an inside, end box downside is equipped with a plurality of apertures that communicate with the cavity, and end box upside is equipped with trilateral upper shed that has the slot, and dry brush and wet brush are installed respectively to the both sides of aperture, installs humidification mechanism in the end box cavity, and end box upper shed inserts through the slot and closes to be connected with handheld handle, is equipped with the wind channel that communicates with end box cavity in the handheld handle, and the rear end in wind channel is equipped with the fan. The utility model adopts a water mist dust removal mode, dry dust generated when the blackboard is erased is reduced to the maximum extent by the air around the wet blackboard eraser in the water mist environment, and the wet dust can be cleaned, so that secondary dust can not be generated; the brush and the dry brush are used in a double-matched mode, so that the blackboard can be quickly erased and can be immediately used after being erased.

Description

Water mist dust fall blackboard eraser

Technical Field

The utility model relates to a teaching aid technical field, concretely relates to water smoke dust fall blackboard eraser.

Background

The blackboard eraser is a necessary teaching tool, but dust flies to seriously pollute the environment when the blackboard is erased, and the aeipathia is easily suffered by long-term dust suction. In order to improve the teaching environment and ensure the physical health of teachers, a plurality of designers make efforts to design various simple and practical dustproof blackboard erasers.

For example, chinese patent CN102241222A discloses a dust-removing blackboard eraser, which comprises a blackboard eraser body and a brush, wherein a dust-collecting fan driven by a dust-collecting motor is disposed in the blackboard eraser body, an absorption layer is disposed in the body at the rear of the dust-collecting motor, and a plurality of exhaust holes are disposed on the body outside the absorption layer.

Chinese patent CN102689555A discloses an electrostatic dust removal blackboard eraser, which comprises a eraser and a casing, wherein the front end of the casing is provided with a dust falling hole; the dust collecting device also comprises an electrostatic generator, a starting switch and a dust collecting tank.

Chinese patent CN206528250U discloses a mechanical dust-removing blackboard eraser, which comprises a casing, wherein the casing is provided with a wiping surface, brushes are arranged on the wiping surface, and dust-collecting holes are distributed in an array; the driving roller is rotatably arranged on the shell, at least one part of the driving roller penetrates out of the wiping surface, and the shell can drive the driving roller to rotate when moving; a dust suction impeller rotatably installed in the housing and facing the dust suction hole; and a transmission mechanism installed in the housing, capable of transmitting the rotational kinetic energy of the driving roller to the dust collection impeller to drive the dust collection impeller to rotate.

Although the blackboard eraser can play a role in dedusting to a certain extent, the blackboard eraser adopts a dry adsorption dedusting mode, only can adsorb dust passing through a dust absorption hole, cannot adsorb dust flying in the air, has low dust absorption efficiency, and is easy to generate secondary dust during the treatment of dust accumulated in a dust groove.

SUMMERY OF THE UTILITY MODEL

For the blackboard eraser dust absorption inefficiency of the mode of solving among the prior art adoption dry process absorption dust removal, and easily produce the technical problem of secondary raise dust when handling the dust that accumulates in the dust groove, the utility model provides a water smoke dust fall blackboard eraser builds a water smoke environment around the blackboard eraser through humidification mechanism, utilizes the moist dust of water smoke to play the effect of dust fall, and dust collection efficiency is high, and can not produce secondary pollution.

The utility model adopts the technical scheme that:

the utility model provides a water smoke dust fall blackboard eraser, box at the bottom of the rectangle that includes an inside cavity that is equipped with, the middle part of end box downside is equipped with a plurality of apertures that communicate with the cavity, and end box side is equipped with trilateral upper shed that has the slot, and dry brush and wet brush are installed respectively to the both sides of aperture, installs humidification mechanism in the end box cavity, humidification mechanism includes water tank and humidification membrane, and the water tank is installed in end box cavity, and the middle part of side is equipped with the opening on the water tank, installs humidification membrane in the opening, and humidification membrane separates water tank inner chamber for preceding cavity and back cavity, and preceding cavity downside is equipped with a plurality of limbers that communicate with end box cavity, and end box upper shed is connected with handheld handle through slot interpolation, is equipped with the wind channel with end box cavity intercommunication in the handheld handle, and the.

Wind power generated by the fan is transmitted to the humidifying mechanism through the air duct, water of a humidifying film in the humidifying mechanism is blown out from small holes in the bottom of the bottom box under the action of the wind power to form water mist, a water mist environment is formed around the blackboard eraser, the wet hair brush is used for erasing characters on the blackboard, dust generated in the erasing process is wetted by the water mist to form wet dust which falls off, the dry brush is used for erasing the blackboard surface wetted by the water mist, and the wet hair brush and the dry brush are matched to realize quick erasing of the blackboard and immediate use after the erasing.

Furthermore, a switch is arranged at the front end of the handheld handle, a battery box is arranged in the handheld handle, a battery pack is installed in the battery box, and the battery pack is connected with the switch and the fan through wires. The battery pack provides power for the humidifying mechanism, the switch is used for controlling the starting and stopping of the fan, and the design of the battery pack and the switch facilitates the use of the blackboard eraser.

Furthermore, the air duct is of a variable cross-section rectangular structure with a small front end and a large rear end. The wind power generated by the fan gradually accelerates the wind speed through the variable cross-section air duct, and the water mist generation effect is improved.

Furthermore, a water inlet is formed in the upper side face of the water tank rear cavity, and a sealing cover is arranged on the water inlet. The water tank is convenient to be filled with water, and the use is convenient.

Further, the dry brush comprises a handle and a brush head fixed on the handle, wherein the brush head is made of moisture absorption material. The dehumidifying capacity of the dry brush is improved. The hygroscopic material may be cotton yarn, sponge or foam rubber.

Further, the wet hair brush comprises a brush handle and bristles fixed to the brush handle, wherein the bristles are made of an abrasion-resistant material. The service life of the wet hairbrush is prolonged. The wear resistant material may be plastic, nylon or organic fiber.

Furthermore, the humidifying membrane is formed by superposing water absorbing materials with good air permeability in a hexagonal honeycomb structure, and micropores are communicated among the honeycomb structures. The structure can form water mist with the water in the humidifying membrane when wind power passes through, and the dust removal efficiency is improved. Materials with good air permeability such as cotton yarn, air permeable paper, etc.

Furthermore, the bottom box, the water tank and the hand-held handle can be made of waste plastics. The plastic has light weight and convenient use, and the waste plastic is recycled, economic and environment-friendly.

The utility model has the advantages that:

1. the utility model adopts a water mist dust removal mode, dry dust generated when the blackboard is erased is reduced to the maximum extent by the air around the wet blackboard eraser in the water mist environment, and the wet dust can be cleaned, so that secondary dust can not be generated; the brush and the dry brush are used in a double-matched mode, so that the blackboard can be quickly erased and can be immediately used after being erased.

2. The utility model discloses the structure is retrencied, and handheld handle has reduced the component part as user's the portion of gripping again as the wind transmission wind channel, handheld handle and end box are inserted and are closed and be connected, pieces the convenience of tearing open.

3. The design of humidification membrane not only plays the effect that dispersed rivers formed the water smoke, still plays the effect of intercommunication water tank front and back cavity.

Drawings

Fig. 1 is a schematic view showing the installation structure of a water mist dust fall blackboard eraser according to an embodiment of the present invention.

Fig. 2 is an exploded view of fig. 1.

Detailed Description

For a better understanding of the present invention, the following examples are provided to further illustrate the present invention, but the present invention is not limited to the following examples.

Referring to fig. 1 and 2, the embodiment provides a water mist dust-settling blackboard eraser, which comprises a bottom box 3, a water tank 6, a humidifying membrane 7, a wet hair brush 4, a dry brush 5, a handheld handle 1, a fan 2, a switch 8 and a battery pack 9; the water tank 6 and the humidifying membrane 7 form a humidifying mechanism.

The bottom box 3 is rectangular and can be made of waste plastics. The inside cavity that is equipped with of end box, the middle part of end box downside is equipped with a plurality of intensive apertures 32 that communicate with the cavity, and the side is equipped with trilateral upper shed 31 that has the slot on the end box, and the both sides of end box downside are equipped with wet brush mounting groove and dry brush mounting groove not communicate with the cavity respectively, and wet brush mounting groove and dry brush mounting groove are located the both sides of aperture 32 respectively, parallel arrangement. The wet hair brush 4 is embedded in the wet hair brush mounting groove, the wet hair brush 4 comprises a strip-shaped brush holder 42 and bristles 41 fixed on the lower side of the strip-shaped brush holder, and the bristles 41 can be made of anti-abrasion materials such as plastics or nylon. The brush holder 42 is over-fitted into the wet-brush mounting slot. The wet brush 4 is prior art and is commercially available. The dry brush 5 is embedded in the dry brush mounting groove, the dry brush 5 comprises a strip-shaped brush holder 52 and a brush head 51 fixed on the lower side of the strip-shaped brush holder, and the brush head 51 is made of moisture absorption materials such as cotton yarn, sponge or foam rubber. The handle 52 is over-fitted into the dry brush mounting slot.

The water tank 6 is rectangular and can be made of waste plastics. The middle part of side is equipped with rectangle opening 61 on the water tank, and humidification membrane 7 places in the rectangle opening, and humidification membrane 7 is connected with water tank interference fit, and humidification membrane 7 separates the water tank inner chamber for preceding cavity and back cavity, and the downside of preceding cavity is equipped with the limbers with end box cavity intercommunication, and the side of going up of back cavity is equipped with water inlet 62, and the water inlet seals through sealed lid. The water tank 6 is arranged in the cavity of the bottom box and is in excessive fit connection with the bottom box, and a gap is formed between the bottom of the water tank and the inner bottom wall of the bottom box. The humidifying membrane 7 is a prior art and is commercially available. The humidifying membrane is formed by superposing moisture absorption materials with good air permeability, such as veil and materials, in a hexagonal honeycomb structure, and micropores are communicated among the honeycomb structures.

The handle 1 is cuboid and can be made of waste plastics. Two side surfaces of the bottom of the handle protrude outwards to form two strip-shaped lugs 13, and the lugs 13 are matched with the slots of the upper opening 31. The handle 1 is inserted into the insertion groove from one end of the upper opening 31 through the ear portion 13 thereof. The central part of the handle 1 is provided with a variable-section rectangular air duct with a small front end and a large rear end along the length direction, the rear end of the air duct is open, and the fan 2 is installed at the open end of the rectangular air duct through screws to provide wind power. The fan 2 is prior art, and the preferred embodiment is a turbine straight flow type blade fan. The upper side face of the front end of the handheld handle 1 is provided with a groove 11 for installing a battery pack, and a partition wall is arranged between the groove 11 and the air duct. The battery pack 9 is mounted in the recess 11, and the cover 10 is mounted above the recess 11 by screws for protection of the battery pack 9. The front side of the handheld handle 1 is provided with a switch mounting hole, the switch 8 is mounted in the mounting hole, and the switch 8 is electrically connected with the battery pack 9 and the fan 2 through a cable passing through an air channel and used for controlling the starting and stopping of the fan 2.

The blackboard eraser of the utility model can be made of recycled plastics, is economical and environment-friendly and is convenient to use.

The utility model discloses a theory of operation is:

water is injected into the rear cavity of the water tank through the water inlet 62 for storage, when the blackboard eraser is not used, the front end of the bottom box 3 is placed upwards, and the water is reserved in the rear cavity of the water tank; when the blackboard eraser is used, the switch 8 is pressed, the fan 2 is started, the handle 1 is held by hand to enable the front end of the bottom box 3 to face downwards and the rear end of the bottom box to face upwards, water in the rear cavity of the water tank flows into the humidifying membrane 7 under the action of gravity, moisture in the humidifying membrane 7 is dispersed into water mist through micropores in the humidifying membrane under the action of wind power and reaches the front cavity of the water tank, the water mist enters the cavity of the bottom box through a through hole in the bottom of the front cavity and is blown out from dense pores 32 in the bottom of the bottom box finally, a water mist environment is formed around the blackboard eraser, the wet hair brush 4 and the dry brush 5 act simultaneously, the wet hair brush 4 is used for erasing characters on the blackboard, dust generated in the erasing process is wetted by the water mist to become wet dust and falls off, the dry brush 5 is used for erasing the board wetted by the water mist, and the.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. The utility model provides a water smoke dust fall blackboard eraser, its characterized in that, box at the bottom of the rectangle that is equipped with the cavity including an inside, the middle part of end box downside is equipped with a plurality of apertures that communicate with the cavity, and end box side is equipped with trilateral upper shed that has the slot, and dry brush and wet brush are installed respectively to the both sides of aperture, installs humidification mechanism in the end box cavity, humidification mechanism includes water tank and humidification membrane, and the water tank is installed in end box cavity, and the middle part of side is equipped with the opening on the water tank, installs humidification membrane in the opening, and humidification membrane separates the water tank inner chamber for preceding cavity and back cavity, and preceding cavity downside is equipped with a plurality of limbers that communicate with end box cavity, and end box upper shed is connected with handheld handle through slot interpolation, is equipped with the wind channel that communicates with end box cavity in the handheld handle.

2. The water mist dust-settling blackboard eraser as claimed in claim 1, wherein a switch is arranged at the front end of the hand-held handle, a battery box is arranged in the hand-held handle, a battery pack is arranged in the battery box, and the battery pack is connected with the switch and the fan through wires.

3. The water mist dust-settling blackboard eraser as claimed in claim 1 or 2, wherein the air duct is of a variable cross-section rectangular structure with a small front end and a large rear end.

4. The water mist dust-settling blackboard eraser as claimed in claim 1 or 2, wherein a water inlet is formed in the upper side surface of the water tank rear cavity, and a sealing cover is arranged on the water inlet.

5. A water mist dust fall blackboard eraser according to claim 1 or 2, wherein the dry brush comprises a handle and a brush head fixed to the handle, the brush head being made of a moisture absorbent material.

6. The water mist dust suppression blackboard eraser according to claim 1 or 2, wherein the wet-bristle brush comprises a brush handle and bristles fixed on the brush handle, and the bristles are made of an abrasion-resistant material.

7. The water mist dust-settling blackboard eraser as claimed in claim 1 or 2, wherein the humidifying membrane is formed by stacking water absorbing materials with good air permeability in a hexagonal honeycomb structure, and micropores are communicated among the honeycomb structures.

8. The water mist dust-reducing blackboard eraser as claimed in claim 1 or 2, wherein the bottom box, the water tank and the hand-held handle are all made of waste plastics.

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