CN203805561U - Novel blackboard rapid to erase - Google Patents

Abstract

The utility model relates to a novel blackboard rapid to erase. The novel blackboard comprises a blackboard main body (10); two strip plates (101) are respectively nailed at both sides of the blackboard main body (10); a vertical neck (104) is formed in the inner side face of each strip plate (101); a transverse erasure strip (102) is clamped between the two vertical necks (104); a spring (103) is connected between each end of the transverse erasure strip (102) and the top end of the interior of the corresponding neck (104); an expansion link (105) is clamped in a groove in the middle of the erasure strip (102). The novel blackboard provided by the utility model is simple in structure and convenient to use; when chalk characters on the blackboard are erased, only the expansion link needs to be pulled repeatedly; a line of hairbrushes on the erasure strip repeatedly rubs the surface of the blackboard main body, and therefore, the efficiency that the chalk characters are erased is improved; moreover, the expansion link can be taken down and used as a pointer.

Description

The blackboard that a kind of Novel rapid is wiped

Technical field:

The utility model relates to a kind of blackboard, the blackboard of wiping more specifically to a kind of Novel rapid.

Background technology:

Blackboard not refers in particular to the plate face of black, in traditional sense, say be it one can repeated writing plane, plate face is hard, is used for teaching, mostly is black, blackish green, white.After complete on a class, student on duty understands the conscious letter written with chalk going on erasing blackboard, to be abandoned or divorced by one's husband, class teacher writes on blackboard, student on duty is when wiping erasing chalk word by traditional blackboard, the speed of wiping is slower, chalk dust is larger on student on duty's impact, if design the device of the quick erasing chalk word of a kind of energy, just can address this problem, so design the blackboard that a kind of Novel rapid wipes, be very useful.

Utility model content:

The purpose of this utility model is exactly for the deficiencies in the prior art, and the blackboard that provides a kind of Novel rapid to wipe.The utlity model has simple in structure, easy to use, during letter written with chalk on erasing blackboard, only need repeatedly pull expansion link, the row of one in scrubber bar hairbrush, repeatedly in the friction of blackboard body surfaces, has improved the efficiency of erasing chalk word, expansion link can take off in addition, is used as the advantage that teacher's pointer uses.

Technology solution of the present utility model is as follows:

The blackboard that a kind of Novel rapid is wiped, comprise blackboard main body, described blackboard main body both sides nail has two strip plates, article two, strip plate medial surface has a vertical draw-in groove, between two clamp bar slots, card has a horizontal scrubber bar, between scrubber bar two ends and two clamp bar slot inner tip, be connected with a spring, in the middle of scrubber bar, be connected with an expansion link, blackboard bottom part body is connected with a chalk dust ledge.

In technique scheme, described scrubber bar inner side is fixed with row's hairbrush.

In technique scheme, described expansion link top is square fixture block, and square fixture block is stuck in the groove in the middle of scrubber bar.

The beneficial effects of the utility model are:

The utility model is simple in structure, easy to use, during letter written with chalk on erasing blackboard, only need repeatedly pull expansion link, the row of one in scrubber bar hairbrush, repeatedly in the friction of blackboard body surfaces, has improved the efficiency of erasing chalk word, expansion link can take off in addition, is used as teacher's pointer and uses.

Accompanying drawing explanation:

Fig. 1 is the utility model structural representation;

Fig. 2 is the structure for amplifying schematic diagram of a-quadrant in Fig. 1;

Fig. 3 is Telescopic rod structure schematic diagram.

Below in conjunction with Figure of description, the utility model is further described;

In figure: 10, blackboard main body; 101, strip plate; 102, scrubber bar; 1021, hairbrush; 103, spring; 104, draw-in groove; 105, expansion link; 1051, square fixture block; 106, chalk dust ledge.

The specific embodiment:

The following stated is only preferred embodiment of the present utility model, not scope of the present utility model is limited.

Embodiment: see shown in Fig. 1, Fig. 2 and Fig. 3, the blackboard that a kind of Novel rapid is wiped, comprise blackboard main body 10, described blackboard main body 10 both sides nails have two strip plates 101, article two, strip plate 101 medial surfaces have a vertical draw-in groove 104, between two clamp bar slots 104, card has a horizontal scrubber bar 102, between scrubber bar 102 two ends and two clamp bar slot 104 inner tip, be connected with a spring 103, in the middle of scrubber bar 102, be connected with an expansion link 105, blackboard main body 10 bottoms are connected with a chalk dust ledge 106.

Described scrubber bar 102 inner sides are fixed with row's hairbrush 1021.

Described expansion link 105 tops are square fixture block 1051, and square fixture block 1051 is stuck in the groove in the middle of scrubber bar 102.

Operation principle:

The blackboard that a kind of Novel rapid is wiped, blackboard main body 10 both sides nails have two strip plates 101, article two, strip plate 101 medial surfaces have a vertical draw-in groove 104, between two clamp bar slots 104, card has a horizontal scrubber bar 102, between scrubber bar 102 two ends and two clamp bar slot 104 inner tip, be connected with a spring 103, in the middle of scrubber bar 102, be connected with an expansion link 105, blackboard main body 10 bottoms are connected with a chalk dust ledge 106, scrubber bar 102 inner sides are fixed with row's hairbrush 1021, expansion link 105 tops are square fixture block 1051, square fixture block 1051 is stuck in the groove in the middle of scrubber bar 102, during letter written with chalk on erasing blackboard, only need repeatedly pull expansion link 105, in scrubber bar 102 one row hairbrush 1021 is repeatedly in 10 mantle frictions of blackboard main body, after moving bottommost to, effect due to spring 103, scrubber bar 102 is the letter written with chalk on erasing blackboard main body 10 surfaces up, easily laborsaving, improved the efficiency of erasing chalk word, expansion link 105 can take off in addition, being used as teacher's pointer uses.

Claims (3)

1. the blackboard that Novel rapid is wiped, comprise blackboard main body (10), it is characterized in that: described blackboard main body (10) both sides nail has two strip plates (101), article two, strip plate (101) medial surface has a vertical draw-in groove (104), between two clamp bar slots (104), card has a horizontal scrubber bar (102), between scrubber bar (102) two ends and two clamp bar slots (104) inner tip, be connected with a spring (103), in the middle of scrubber bar (102), be connected with an expansion link (105), blackboard main body (10) bottom is connected with a chalk dust ledge (106).

2. the blackboard that a kind of Novel rapid according to claim 1 is wiped, is characterized in that: described scrubber bar (102) inner side is fixed with row's hairbrush (1021).

3. the blackboard that a kind of Novel rapid according to claim 1 is wiped, is characterized in that: described expansion link (105) top is square fixture block (1051), and square fixture block (1051) is stuck in the groove in the middle of scrubber bar (102).