CN2289683Y - Chalk special used for blackboard - Google Patents

Abstract

The utility model discloses a chalk specially used for a blackboard, which comprises an upper cover, a middle sleeve, a chalk head, a sponge, a valve, a valve body, a flower basket, a spring and a housing. A reverse switch valve is used for regulating the flow of the ink. The piece of sponge is arranged in the middle sleeve to store the ink and prevent the ink from overflowing. In the housing, an ink chamber can be arranged between the middle and the flower basket to form an ink chamber changing writing chalk. Water dosage type ink is used by the utility model, and thus, the chalk specially used for a blackboard has no dust pollution. The length and the outer diameter of the chalk specially used for a blackboard are similar to those of a chalk used for teaching commonly, and the writing habit is coincident. Thus, the utility model has the advantages of free moving of the wrist and convenient use.

Description

The blackboard special pens

The utility model relates to a kind of writing implement, a kind of blackboard special pens of more specifically saying so.

For a long time, submit a written statement to a higher authority to write at blackboard with chalk and carry out education activities, dust from flying, harmful teachers and students are healthy.Existing all kinds of plate pen, can only be used on the white plate, can not extensively be used on the blackboard of existing teaching usefulness as traditional teaching writing, and existing all kinds of plate pens are longer, only imitate general pencil or stylographic application mode, thereby the wrist of writing on wall or link plate the user needs crooked certain angle, wrist must stiffly be ached when writing for a long time on wall formula link plate like this, for teacher's very inconvenience of demonstration of giving lessons continuously, some plate pen also exists to be write agent and supplies water not freely or the shortcoming of overflowing easily.

The purpose of this utility model provides a kind of blackboard special pens, can regulate the prepared Chinese ink output, and is easy to use.

Taked following technical scheme for realizing the purpose of this utility model: the blackboard special pens includes loam cake, middle cover, nib, sponge, valve, valve body, the gaily decorated basket, spring and shell, nib and sponge are put into the front portion of cover, be equipped with by valve at its rear portion, valve body, the sub-assembly that the gaily decorated basket and spring constitute, in this sub-assembly, one end of the gaily decorated basket is enclosed within valve portion and divides on the outer round surface, valve body and spring are housed in the gaily decorated basket, the front portion of valve body contacts with valve, and making valve be subjected to being enclosed within the spring applied pressure at valve body rear portion, loam cake and shell are enclosed within respectively on the outer round surface of the middle front and rear that overlaps.Between the middle cover and the gaily decorated basket, can load onto a black courage to constitute a lettering pen that changes the courage formula.

The utility model adopts water aqua type prepared Chinese ink, has solved dust pollution, and it is healthy to be of value to teachers and students, and the blackboard that profile is short and traditional is close with chalk, and the custom of writing with writing by chalk of holding a pen is consistent, and the wrist activity freely.Can control the flow of prepared Chinese ink, can adopt perfusion prepared Chinese ink form also can adopt the black courage form that changes the outfit, easy to use.

Below in conjunction with embodiment and accompanying drawing thereof the utility model is further described:

Fig. 1 is the schematic diagram of perfusion prepared Chinese ink formula blackboard special pens

Fig. 2 is the change the outfit schematic diagram of formula blackboard special pens of black courage

Consult accompanying drawing, the blackboard special pens includes loam cake 1, middle cover 2, nib 3, sponge 4, valve 5, valve body 6, the gaily decorated basket 7, spring 8 and shell 9 (Fig. 1).Nib 3 and sponge 4 are put into the front portion of cover 2, be equipped with by valve 5 at its rear portion, valve body 6, the assembly that the gaily decorated basket 7 and spring 8 constitute, in this assembly, one end of the gaily decorated basket 7 is enclosed within on the part outer round surface of valve 5, valve body 6 and spring 8 are housed in the gaily decorated basket 7, the front portion of valve body 6 contacts with valve 5, and make valve 5 be subjected to being enclosed within spring 8 applied pressures at valve body 6 rear portions, during loam cake 1 and shell 9 are enclosed within respectively on the outer round surface of cover 2 front and rear, nib 3 adopts composite fibre materials, therefrom overlapping the hole of 2 fronts injects, the hole of passing sponge 4 and valve 5 contacts with valve body 6, the side of the gaily decorated basket or bottom surface have groove and are convenient to prepared Chinese ink and flow in it from the shell 9 that prepared Chinese ink is housed, except that nib and sponge other in addition parts make by plastics, when writing owing to written 3 pressurizeds, its afterbody is with top on the valve body 6, valve 5 is opened, and prepared Chinese ink promptly flows in the cavity of valve body 6 from the gap that valve 5 and valve body 6 back down, and is write the end that prepared Chinese ink is drawn to nib 3 as font by nib 3.When not writing, spring 8 resets valve body 6 and seals valve 5, makes prepared Chinese ink no longer flow into the cavity of valve body 6, and sponge 4 can absorb and store prepared Chinese ink, prevents that prepared Chinese ink from leaking outside, and writing finishes tightens loam cake 1 to keep nib 3 moist and protection nibs.

In shell 9, between the middle cover 2 and the gaily decorated basket 7, load onto a black courage 10, promptly constituted the change the outfit blackboard special pens (Fig. 2) of formula of black courage, other structure is identical with the blackboard special pens of perfusion prepared Chinese ink formula except that installing a black courage 10 additional.The hand of holding shell 9 has temperature, and black courage 10 plays heat insulation effect, prevents from that prepared Chinese ink is heated to overflow.The China ink courage is disposable peripheral hardware separate accessories, having red, yellow, Bai Sanse prepared Chinese ink can be for selecting for use, the black courage lid that will fill prepared Chinese ink during use is opened and is taken away, back out shell 9 black courage 10 is packed between cover 2 and the gaily decorated basket 7 and suppress the gaily decorated basket 7, the shell 9 of screwing on then can use.

Claims (2)

1, a kind of blackboard special pens, it is characterized in that: this special pens includes loam cake (1), middle cover (2), nib (3), sponge (4), valve (5), valve body (6), the gaily decorated basket (7), spring (8) and shell (9), nib (3) and sponge (4) are put into the front portion of cover (2), valve (5) is equipped with at its rear portion, valve body (6), the sub-assembly that the gaily decorated basket (7) and spring (8) constitute, in this sub-assembly, one end of the gaily decorated basket (7) is enclosed within on the part outer round surface of valve (5), valve body (6) and spring (8) are housed in the gaily decorated basket (7), the front portion of valve body (6) contacts with valve (5), and making valve (5) be subjected to being enclosed within spring (8) applied pressure at valve body (6) rear portion, loam cake (1) and shell (9) are enclosed within respectively on the outer round surface of front and rear of middle cover (2).

2, blackboard special pens according to claim 1 is characterized in that: in shell (9), load onto a black courage (10) between the middle cover (2) and the gaily decorated basket (7).

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