CN2182079Y

CN2182079Y - Health eraser

Info

Publication number: CN2182079Y
Application number: CN 93216087
Authority: CN
Inventors: 姜宁
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-06-15
Filing date: 1993-06-15
Publication date: 1994-11-09
Anticipated expiration: 2003-06-15

Abstract

The utility model discloses a health eraser, and an outer frame 18 is covered outside the blackboard eraser 21. The number of the sucking grooves is four, and the sucking grooves are mutually communicated around the blackboard eraser 21 and in the inner side of the outer frame 18 and are communicated with a middle strip groove 20 in the middle of the blackboard eraser 21, are communicated with three pairs of corresponding positional strip-shaped grooves 40 on the back side of an erasing body 7 and a pair of corresponding positional middle long groove 39 and is communicated with a circular hole 38 in the central position of the back side of the erasing body 7. When the blackboard is erased, the gap between the bottom side of the outer frame 18 and the blackboard is adjusted not to rub against the blackboard to make the dust be easy to be sucked in. The motor drives a vane wheel to rotate, and the dust passes the strip-shaped grooves 40 and the middle long groove 39 form a sucking groove 22 and the middle strip groove 20 and then is sucked into a dust box to store by the circular hole 38.

Description

Health eraser

The utility model relates to a kind of health care formula blackboard eraser, says so more specifically that it is a kind of when erasing the board to relate to, and makes the device of chalk dust by the bothrium on blackboard eraser four limits, middle cylindrical void, suction dust box.

What use at present is the blackboard eraser that is bonded by felt and plank, and when erasing the board, chalk dust descends slowly and lightly, flies upward around blackboard eraser, influences teacher and classmate's health.

The purpose of this utility model is: provide a kind of when erasing the board, can suck chalk dust the blackboard eraser of dust box.

For achieving the above object, the scheme that the present invention adopts is: a kind of health care formula blackboard eraser, it comprises: impeller 9, motor 10, dust box 31, dust blocking lid 32, felt wipe 24, it is characterized in that: it also comprises housing 18, it is rectangular, be enclosed within the outside of blackboard eraser 21, bothrium 22 4 samples, it is around blackboard eraser 21, the inboard of housing 18, communicate mutually, and communicate with discal patch groove 20 in the middle of the blackboard eraser 21, with the circular hole 38 of center, rub body 7 back side, and bar-shaped trough 40, the middle elongated slot 39 of circular correspondence position communicate.

Iron plate 23 on the housing 18 and the long magnetic stripe 35 on inner panel 30 outsides are on correspondence position.

Screw hole 27 on the blackboard eraser 21 is corresponding with the screw silk mouth 37 on the inner panel 30.

Its operation principle is: when blackboard eraser erases the board, and compressing ball, inner prop, suitable cylinder indentation, the felt that ball contracts to blackboard eraser is wiped the plane, and inner prop makes dust blocking lid open simultaneously, and circular hole is communicated with the dust box.When felt wiping subsides blackboard moved, ball rolled, and makes the wiping conveniently moving.When blackboard is left in wiping, under the effect of spring, cylinder, inner prop salient point, inner prop is moved down, lean out felt and wipe the plane, dust blocking lid is enclosed on the circular hole wall, prevent that a dirt leaks outside in the dust box.The iron plate on housing four limits is held on the relevant position by the long magnetic stripe on the inner panel, guarantee at the bottom of the housing along with the adjustable gaps of blackboard.Chalk dust after the wiping sucks bar-shaped trough by four limit bothriums and middle strip hole, enters circular hole by bar-shaped trough, enters the dust box by circular hole, and every down, a dirt is stored in this box in the filter of dust hood.Motor is battery-powered, and the direct drives impeller of motor shaft produces suction at circular outer cover one end, and other end blast pipe and steam vent constitute exhaust channel.Respectively there is a power switch box body both sides, make wiping easy to use.Steam vent when hand takes box body to erase the board, touch less than the position, guarantee that exhaust is unimpeded.Screw hole on the blackboard eraser is corresponding with screw silk mouth on the inner panel, so that with screw it is fused, after the felt scouring is decreased, can pull down screw, more renews blackboard eraser.Projection on four jiaos of the lids, the corresponding spill circular hole that inserts on the inner panel, two magnetic stripes on the lid hold long iron plate corresponding on the inner panel, make it convenient disassembly, in order to a dirt, change battery.

Because above-mentioned blackboard eraser has solved chalk dust when the erasing the board problem of waving, clean classroom air is beneficial to numerous teachers, numerous students' health, is a kind of culture and education health products.

Be described further below in conjunction with drawings and Examples:

Fig. 1 is that Health blackboard is wiped outside drawing.

Fig. 2 is the box component position view.

Fig. 3 is the cover assembly position view.

Fig. 4 is a rub body module position schematic diagram.

Fig. 5 is the housing structural map.

Fig. 6 is a blackboard eraser front structural map.

Fig. 7 is a blackboard eraser back side structural map.

Fig. 8 is an inner panel back side structural map.

Fig. 9 is an inner panel front structural map.

Figure 10 is dust blocking lid when erasing the board, ball, inner prop view.

Figure 11 is dust blocking lid when not erasing the board, ball, inner prop view.

This Health blackboard is wiped, and is made up of box body 2, lid 3, rub body 7 three parts.

Shown in Fig. 1,2, the outer upside of box body 2 has the steam vent 1 of symmetry, communicates with two blast pipes 11, and there is the shallow slot 4 of symmetry on the two sides, is beneficial to hold and takes.Power switch 5 each one of two shallow slots, 4 upside, is beneficial to finger by opening, and makes the wiping use that can commutate.Gap 6 is looped around between lid 3 and the rub body 7, makes housing adjustable about in the of 18.Establish motor 10 in the cylinder outer cover 8,, produce suction with axle drives impeller 9.

By shown in Figure 3, the dust hood 12 on the lid 3 is rounded, covers on dust hood frame 14, so that filter is every a dirt.Power switch 5, two power switches 13 on the power switch 13 corresponding box bodys 2 are on connecting, and by opening that, motor 10 all will be worked.For making the weight both sides equilibrium of wiping, 15 two of battery cases are located on the symmetric position, and two magnetic stripes 16 also are located on the symmetric position.Projection 17 all around, the magnetic stripe 16 on both sides is established for lid 3 is connected with rub body 7.

Shown in Fig. 4,5,6,7,8,9, rub body 7 is made up of housing 18, blackboard eraser 21, inner panel 30.Housing 18 is enclosed within on the inner panel 30, hold iron plate 23 on housing 18 correspondence positions by four block length magnetic stripes 35 of inner panel 30 4 sides, housing 18 lower edges and felt are wiped 24 and are put down, the upper edge is narrower than inner panel 30 back side plane, assembling back gap 6, pack with rubber housing 18 inboards, makes with inner panel 30 outside contact-making surfaces seamless.Discal patch groove 20 is arranged on the blackboard eraser 21, makes felt wipe 24 and be divided into two, have on the wiping board 29 strip hole 26 several, be positioned on discal patch groove 20 center lines.Pipe mouth 25 is positioned at wiping board 29, discal patch groove 20 centers, and ball 45 and inner prop 42 lean out thus.27 4 of screw holes are corresponding with screw silk mouth 37 on the inner panel 30, and the screw 19 of screwing on fuses blackboard eraser 21 and inner panel 30.The dust box 31 at inner panel 30 back sides is rounded, dust blocking lid 32 is also rounded to be covered on circular hole wall 33, circular hole 38 is positioned at dust box 31 centers, lead to inner panel 30 fronts, circular hole 38 both sides symmetries respectively have a middle elongated slot 39, each communicates with bothrium 22, communicates with circular hole 39, with wiping board 29 on strip hole 26 corresponding communicating, circular hole 38 both sides also respectively have three symmetrical bar-shaped troughs 40 also to communicate with bothrium 22, circular hole 38.The four jiaos of spill circular holes 36 in inner panel 30 back sides are corresponding with 3 four jiaos of projections 17 of lid, two long iron plates 34 are corresponding with 3 liang of magnetic stripes 16 of lid, when projection 17 inserts spill circular hole 36, when magnetic stripe 16 holds long iron plate 34, lid 3 just fuses with rub body 7, connection makes two body convenient disassemblies like this, in order to outwelling a dirt, changing battery.

Shown in Figure 10,11, inner prop 42 cover upper springs 44, insert by pipe mouth 25, be fixed on dust blocking lid 32 centers by screw 41, spring 44 is because pipe 28 upper end holes are little spacing, can only support the salient point 43 on the inner prop 42 down, make dust blocking lid 32 Mi Gai on circular hole wall 33, make ball 45 and inner prop 42 lean out felt simultaneously and wipe 24 planes.

Full wiping assembling process is as follows: the pipe 28 at blackboard eraser 21 back sides is aimed at inner panels 30 front circular holes 38 insert, screw hole 27 is aimed at screw silk mouth 37, make strip hole 26 be arranged in elongated slot 39 centers, the screw 19 of screwing on is fixing.Spring 44 is enclosed within inner prop 42 salient points 43 upper ends, inserts, press ball 45 and inner prop 42, dust blocking lid 32 is placed on the circular hole wall 33 by pipe mouth 25.Tighten the screws 41.Housing 18 is enclosed within on the inner panel 30, makes long magnetic stripe 35 hold iron plate 23, so far rub body assembles.Lid 3 is placed on the box body 2, cylinder outer cover 8 impellers 9 ends are inserted in the dust hood frame 14, fix, so far lid 3 assembles with box body 2.With the spill circular hole 36 of the 17 aligning rub bodies of the projection on the lid 3, magnetic stripe 16 is aimed at long iron plates 34, and it is promptly good that dust hood 12 aligning dust boxes 31 insert, and so far wipes entirely and assembled.

Claims

1, a kind of health care formula blackboard eraser, it comprises: impeller [9], motor [10], dust box [31], dust blocking lid [32], felt are wiped [24], it is characterized in that: it also comprises housing [18], it is rectangular, be enclosed within the outside of blackboard eraser [21], bothrium [22] four samples, it is around blackboard eraser [21], the inboard of housing [18], communicate mutually, and communicate with discal patch groove [20] in the middle of the blackboard eraser [21], with the circular hole [38] of rub body [7] center, the back side, and bar-shaped trough [40], the middle elongated slot [39] of circular correspondence position communicate.

2, blackboard eraser according to claim 1 is characterized in that: the long magnetic stripe ［ 35 ］ on the iron plate ［ 23 ］ on the housing ［ 18 ］ and inner panel ［ 30 ］ outside is on correspondence position.

3, blackboard eraser according to claim 1 is characterized in that: the screw hole ［ 27 ］ on the blackboard eraser ［ 21 ］ is corresponding with the screw silk mouth ［ 37 ］ on the inner panel ［ 30 ］.