CN206623573U - A kind of Portable chalk blackboard-writing device - Google Patents

Abstract

A kind of Portable chalk blackboard-writing device, including pen container, shell fragment, push jack and buckle, the front end of pen container is provided with shell fragment, shell fragment can insert chalk and fix chalk, and push jack is provided with behind shell fragment, buckle is provided with push jack, buckle can be such that push jack is promoted up and down in groove, promote push jack that chalk is pushed into shell fragment by being buckled in teeth groove, lock is housed on buckle, at the desired position can be locked push jack by buckle.Distance between the utility model teeth groove is certain, allow neck promote when can be freely motion.It thus can preferably promote chalk.So product can be made to seem compact.Structure very simple is feasible, and manufacture installation is very easy.

Description

A kind of Portable chalk blackboard-writing device

Technical field

The utility model belongs to classroom teaching aid class engineering goods, i.e., a kind of Portable chalk blackboard-writing device.

Technical background

Chalk is the education of extremely difficult popularization originally, via convenient instrument, allows more great number of disciples, is able to learn enough Knowledge, the masses for ignorant of eliminating illiteracy.Although being now the society of information expansion, society is developing rapidly, and goes out in terms of teaching Show multimedia teaching, oil pike writing, but can not still substitute the fact that chalk-writing teaching is remained under Chinese overall background. The facility of chalk teaching is cheap, easy to repair, the easy to operate favor had no requirement to technology and receive numerous leaders and teacher. But due to being hand-held writing, so the generation of some total unavoidable problems, such as：Chalk is frangible, chalk end, dust cause to teach The hand of teacher ftractures most etc..The generation of substantial amounts of chalk end does not meet the development of conservation-minded society under our in big epoch.Institute Still extremely there is Research Significance with this problem.

In the market with the presence of the engineering goods that can solve the problem that this problem.

1st, oil fountain pen；

2nd, common chalk sleeve；

3rd, blackboard is replaced using projection device；

Oil fountain pen used many markings of the blackboard that can repeatedly do, and highly necessary changed blank into, was all at present blackboard on classroom, So unrealistic, general chalk clamp is when using common chalk, the defects of due to itself, it is impossible to clamps the thin of common chalk Head, can only use chalk thick head, so chalk can only use it is a bit of, and be left one big section of chalk can not use, cause Very big waste, and fit on be inconvenient to cause the substantial amounts of time be wasted in dress chalk on.And projecting apparatus capital intensive, if Standby environmental requirement is high, complex operation, can not handle very skillfully in a short time, illumination is insufficient or it is reflective do not see heel row, front row can not It is too near and dumb, unavoidably using chalk.And this portable typesetter that we develop, not only simple in construction, material It is light cheap, it is easy to use, moreover it is possible to reduce the influence of dust opponent, while meet wanting for conservation-minded society with saving chalk The demand for more meeting market is sought, so the research of such product is meaningful.

The content of the invention

In order to overcome the drawbacks of using chalk in teaching at present, the utility model proposes a kind of Portable chalk blackboard-writing device New design.

This Portable chalk blackboard-writing device, including pen container, shell fragment, push jack and buckle, the front end of pen container are provided with shell fragment, bullet Piece can insert chalk and fix chalk, and push jack is provided with behind shell fragment, and buckle is provided with push jack, and buckle can make push jack in groove It is interior to promote up and down, promote push jack that chalk is pushed into shell fragment by being buckled in teeth groove, lock is housed on buckle, can be in the position of needs Put and locked push jack by buckle.

Pen container is the cylinder of longitudinal grooved, and in addition to being provided with the position of shell fragment except front end, the both sides of groove are zigzag, with Just promote or fix push jack.

Shell fragment rear portion is split ring, and there are symmetrical 4 flexure strips front portion, can be very good to clamp chalk.

Push jack front portion is two panels pushing hands, and pushing hands can send chalk in shell fragment, and push jack rear portion is annular sleeve, in annular sleeve There is an aperture, snap through aperture on push jack, user's hand push buckle can be such that push jack is moved on pen container.

Buckle rear portion is lock, and lock top is pressing plate, and lock bottom is two symmetrical dops, user's hand pressure pressure Plate, dop leave the sawtooth of pen container, and user unclamps pressing plate, and dop is stuck in the serrated slot of pen container.

Shell fragment is inlayed in the utility model pen container lower end, is sent chalk in shell fragment with push jack, and chalk can be with when releasing Fasten well.It is buckled in teeth groove and promotes, can be loose when pushing down on, than clamping when loosing one's grip upwards, chalk will not when writing Loosen, lock locking can be used, teeth groove can preferably play firm effect, will not be slid as the meeting that other are pushed away, and be The product of shaping.Distance between teeth groove is certain, allow neck promote when can be freely motion.It thus can preferably promote powder Pen.So product can be made to seem compact.Structure very simple is feasible, and manufacture installation is very easy.

The utility model is easy to use so that can be smooth when writing or drawing on blackboard.The long 110mm of this pen container, external diameter 16mm, internal diameter 12mm, size are no different with common oil pen, and writing is convenient.Application method is just and common mechanical pencil is similar. Shell fragment built in its nib front end, fixed protective effect is played to chalk, and the buckle being provided with the middle part of pen container, lock play to chalk Promote, the effect of anti-back and fixation, the design of the uncovered at pen container rear can not only add before chalk promotes piece of chalk but also can be with The time is saved to recycle.

The pen container of Portable writing device is designed to uncovered, adds its sustainability, and it is straight to reduce user The time contacted with chalk is connect, so as to reach the hand of protection user.A built-in shell fragment and push jack are in order that chalk exists Stress equalization during use, external buckle and lock are even more to prevent that the power that should be increased of chalk is then in writing Sliding, simply and easily locking function can facilitate the use length of teacher oneself regulation chalk.

Brief description of the drawings

Fig. 1 is the utility model front view

Fig. 2 is the utility model top view

In figure：1st, pen container, 2, lock, 3, buckle, 4, push jack, 5, shell fragment, 6, split ring, 7, flexure strip, 8, pushing hands, 9, ring Shape set, 10, aperture, 11, pressing plate, 12, dop.

Embodiment

The utility model is described in detail below in conjunction with the accompanying drawings as follows：

This Portable chalk blackboard-writing device, including pen container 1, shell fragment 5, push jack 4 and buckle 3, the front end of pen container 1 are provided with bullet Piece 5, shell fragment 5 can insert chalk and fix chalk, and shell fragment 5 is provided with push jack 4 below, and buckle 3, buckle 3 are provided with push jack 4 Push jack 4 can be made to be promoted up and down in groove, promote push jack 4 that chalk is pushed into shell fragment 5 in teeth groove by buckle 3, be equipped with buckle Lock 2, at the desired position can be locked push jack 4 by buckle 3.

Pen container 1 is the cylinder of longitudinal grooved, and in addition to being provided with the position of shell fragment except front end, the both sides of groove are zigzag, To promote or fix push jack 4.

The rear portion of shell fragment 5 is split ring 6, and there are symmetrical 4 flexure strips 7 front portion, can be very good to clamp chalk.

The front portion of push jack 4 is two panels pushing hands 8, and pushing hands can send chalk in shell fragment 5, and the rear portion of push jack 4 is annular sleeve 9, ring There is an aperture 10 on shape set 9, buckle 3 is arranged on push jack 4 by aperture 10, and user's hand push buckle 3 can make push jack 4 in pen container Moved on 1.

The rear portion of buckle 3 is lock 2, and 2 tops of lock are pressing plate 11, and 2 bottoms of lock are two symmetrical dops 12, user Hand pressure pressing plate 11, dop 12 leave the sawtooth of pen container 1, and user unclamps pressing plate 11, and dop 12 is stuck in the serrated slot of pen container 1.

Claims (1)

1. a kind of Portable chalk blackboard-writing device, it is characterised in that including pen container, shell fragment, push jack and buckle, the front end of pen container is installed There is shell fragment, shell fragment can insert chalk and fix chalk, and push jack is provided with behind shell fragment, and buckle, buckle energy are provided with push jack Push jack is promoted up and down in groove, equipped with lock on buckle, at the desired position can be locked push jack by buckle；

Pen container is the cylinder of longitudinal grooved, and in addition to being provided with the position of shell fragment except front end, the both sides of groove are zigzag, to push away Dynamic or fixed push jack；

Shell fragment rear portion is split ring, and there are symmetrical 4 flexure strips front portion, can be very good to clamp chalk；

Push jack front portion is two panels pushing hands, and pushing hands can send chalk in shell fragment, and push jack rear portion is annular sleeve, has one in annular sleeve Aperture, aperture is snapped through on push jack；

Buckle rear portion is lock, and lock top is pressing plate, and lock bottom is two symmetrical dops, user's hand pressure pressing plate, is blocked Head leaves the sawtooth of pen container, and user unclamps pressing plate, and dop is stuck in the serrated slot of pen container.