CN206589507U - Chalk tube - Google Patents

Abstract

The utility model discloses a kind of chalk tube, including body, body has penetrating tube chamber, and one end of body is to go out the tip of the brushstyle of a writing or painting for what chalk stretched out, go out the relative both sides of the tip of the brushstyle of a writing or painting and be respectively equipped with the breach being connected with tube chamber, the outer surface of body is provided with chalk fixed mechanism corresponding with breach；Chalk fixed mechanism includes rod like parts, rod like parts are rotated by the outer surface of fulcrum and body and connected, and the force side of rod like parts is fixed with clamping part, and clamping part is stretched into breach, the force side of rod like parts is fixed with handle portion, and flexible member is provided between force side and the outer surface of body.During teacher's chalk-writing, finger is fitted in a pipe grip zone, is not contacted directly with chalk, health；The setting of form friction pattern so that teacher just can be lived body secure grip with less power, and the injury to finger is small, ensure that teacher's is healthy.

Description

Chalk tube

Technical field

The utility model is related to teaching aid technical field, specifically, is related to a kind of easy to use and health Chalk tube.

Background technology

Chalk is that, using a kind of extremely frequently instrument in teaching process, but the use of chalk has following drawback：

1st, during teacher's chalk-writing, finger directly contacts chalk, not only unhygienic, and is attached to chalk dust on hand Skin can be corroded.

2nd, when teacher directly grips chalk-writing with hand, chalk dust can be attached to teacher on hand, when teacher helps on classroom Glasses, when stretching clothes or doing other action, chalk dust is attached to the clothes of teacher, face and on hand, influences the image of teacher.

3rd, because chalk dust is attached on hand, teachers association is unconsciously clapped hands or rubbed hands, to remove chalk dust, and these are moved Make inadequate gentleman, prestige of the reduction teacher in student.

4th, because chalk is thin and hard, finger force could firmly hold chalk, after writing for a long time, finger can be caused to extrude Deformation, pain is even numb, the daily teaching work of influence teacher.

5th, chalk was used after a period of time, can not be continuing with because chalk is too short, be caused the unnecessary wasting of resources, Add instruction cost.

For above-mentioned drawback, it is badly in need of a kind of easy to use, environmentally-friendly sanitary, and chalk small to body harm wastes few chalk Aid.

The content of the invention

Technical problem to be solved in the utility model is：A kind of easy to use and health chalk tube is provided.

In order to solve the above technical problems, the technical solution of the utility model is：

Chalk tube includes body, and the body has penetrating tube chamber, and one end of the body is to be used to chalk stretch out Go out the tip of the brushstyle of a writing or painting, it is described go out the relative both sides of the tip of the brushstyle of a writing or painting be respectively equipped with the breach being connected with the tube chamber, the outer surface of the body It is provided with chalk fixed mechanism corresponding with the breach；The chalk fixed mechanism includes rod like parts, and the rod like parts pass through Fulcrum is rotated with the outer surface of the body and is connected, and the force side of the rod like parts is fixed with clamping part, and the clamping part is stretched Enter in the breach, the force sides of the rod like parts is fixed with handle portion, the outer surface of the force side and the body it Between be provided with flexible member.

It is preferred that, the rod like parts, the clamping part and the handle portion are wholely set.

It is preferred that, the clamping part is in needle-like, the clamping part the radially extending along the body of needle-like.

It is preferred that, the flexible member is helical spring or rubber spring.

It is preferred that, the handle portion from a distance from the fulcrum be less than the clamping part from the fulcrum with a distance from.

It is preferred that, it is described go out the relative other both sides of the tip of the brushstyle of a writing or painting be respectively equipped with the groove being connected with the tube chamber, it is described logical Length direction extension of the groove along the body.

It is preferred that, the outer surface of the body is provided with a pipe grip zone, and described pipe grip zone is what is be adapted to finger Concave structure, the concave structure is provided with anti-skid structure.

It is preferred that, the anti-skid structure is form friction pattern.

Employ after above-mentioned technical proposal, the beneficial effects of the utility model are：

Because chalk fixed mechanism includes rod like parts, rod like parts are rotated by the outer surface of fulcrum and body and connected, rod The force side of part is fixed with clamping part, and clamping part is stretched into breach, and the force side of rod like parts is fixed with handle portion, force side Flexible member is provided between the outer surface of body；When chalk is installed, handle portion is pressed, rod like parts are around fulcrum, clamping part Move out, chalk be put into body, release handle portion, flexible member pushes out force side, clamping part inwardly motion from And the chalk that is clamped, during teacher's chalk-writing, body is held, finger is not contacted directly with chalk, chalk dust is not Skin can be corroded, not only health, and it is easy to use.

Because breach abuts the end of body so that clamping part is capable of the chalk of clamping length very little, so as to improve chalk Utilization rate, reduce instruction cost.

Because the outer surface of body is provided with the pipe grip zone being adapted to finger, a pipe grip zone is what is be adapted to finger Concave structure, concave structure is provided with anti-skid structure；So that finger not only can comfortably hold body, finger uses less Power just can firmly hold chalk, reduce the injury to finger, and the body harm to teacher is small.

Because body is provided with the groove being connected with tube chamber, it is easy to observe the use progress of chalk, improving a pipe makes Convenience.

Brief description of the drawings

Fig. 1 is the structural representation of chalk tube of the present utility model；

Fig. 2 is chalk tube use state schematic diagram of the present utility model；

Fig. 3 is the enlarged diagram in A portions in Fig. 2；

In figure：1- bodys；11- breach；12- grooves；13- pipe grip zone；14- form friction patterns；2- chalk fixed mechanisms； 21- rod like parts；22- clamping parts；23- handle portions；24- fulcrums；3- flexible members；4- chalks.

Embodiment

In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain The utility model, and it is not used in restriction the utility model.

As Fig. 1 and Fig. 2 jointly shown in, a kind of chalk tube, including body 1, body 1 has the penetrating tube chamber in two ends, pipe One end of body 1 be chalk stretch out go out the tip of the brushstyle of a writing or painting, be arranged with the breach 11 that is connected with tube chamber going out the relative both sides of the tip of the brushstyle of a writing or painting, Go out the relative both sides of the tip of the brushstyle of a writing or painting and be arranged with the chalk fixed mechanism 2 corresponding with breach 11.

Jointly shown with Fig. 3 as shown in Figure 1, Figure 2, chalk fixed mechanism 2 includes rod like parts 21, and rod like parts 21 pass through 24 turns of fulcrum Dynamic to be located on the outer surface of body 1, the force side of rod like parts 21 is integrally formed with clamping part 22, and the force side of rod like parts 21 is integrally set There is handle portion 23, support has elastic component 3 between handle portion 23 and the outer surface of body 1.Wherein, handle portion 23 and body 1 The distance between outer surface is more than rod like parts 21 close to the distance between one end of clamping part 22 and the outer surface of body 1.

A pipe grip zone 13 is arranged with the outer surface of body 1, a pipe grip zone 13 is the concave surface being adapted to finger Structure, concave structure is provided with anti-skid structure, and anti-skid structure is the form friction pattern 14 on protrusion or the outer surface of recessed body 1, is rubbed Line 14 is wiped provided with a plurality of, along the directional spreding parallel with the axial direction of body 1.

As Fig. 1 and Fig. 2 jointly shown in, clamping part 22 be in needle-like, along body 1 radial direction set.

Flexible member 3 is preferably helical spring, it would however also be possible to employ the element of other flexible functions such as rubber spring.

The length of body 1 so can both make chalk 4 between the length of chalk 4 and 3/4ths length of chalk 4 It is mostly in body 1, again the extension elongation of chalk 4 can be enable adjusted at any time.

When chalk 4 is installed, handle portion 23 is pressed, rod like parts 21 are rotated around fulcrum 24 so that clamping part 22 is displaced outwardly, powder Pen 4 is inserted in body 1, and release handle portion 23, the driving handle portion 23 of flexible member 3 is displaced outwardly so that clamping part 22 is inwardly moved Move chalk 4 being clamped, chalk 4 is clamped in body 1.During writing, finger is fitted in a pipe grip zone 13, do not contacted directly with chalk 4, chalk dust will not be allowed to corrode skin, health is easy to use.

It is the concave structure being adapted to finger due to a pipe grip zone 13, finger can comfortably hold body 1, form friction pattern 14 setting, finger is difficult to produce relative motion with body 1, can firmly hold body 1 thereby using less power, reduce Injury to finger, has ensured that teacher's is healthy.

The groove 12 that is connected with tube chamber is arranged with going out the relative both sides of the tip of the brushstyle of a writing or painting, groove 12 and a pipe grip zone 13 are same The use progress of instructor view's chalk 4 is easy in side, the setting of groove 12, improves the convenience that a pipe is used.

Breach 11 goes out the tip of the brushstyle of a writing or painting against body 1 so that can also obtain the folder of clamping part 22 even if the chalk of length very little Hold fixation so that chalk 4 is utilized, substantially increase the utilization rate of chalk, reduce instruction cost.

Handle portion 23 from a distance from hinged place be less than clamping part 22 from hinged place with a distance from, in this way, handle portion 23 is moved Moving less distance just can realize the larger displacement of clamping part 22, so that needle-like clamping part 22 gos deep into chalk 4, firm grip.

Citing described above for the utility model preferred forms, wherein the part do not addressed in detail is this area The common knowledge of those of ordinary skill.Protection domain of the present utility model is defined by the content of claim, any to be based on this reality The equivalent transformation carried out with new technical inspiration, also within protection domain of the present utility model.

Claims (8)

1. chalk tube, including：Body, the body has penetrating tube chamber, and one end of the body is to be used to chalk stretch out Go out the tip of the brushstyle of a writing or painting, it is characterised in that it is described go out the relative both sides of the tip of the brushstyle of a writing or painting be respectively equipped with the breach being connected with the tube chamber, the pipe The outer surface of body is provided with chalk fixed mechanism corresponding with the breach；

The chalk fixed mechanism includes rod like parts, and the rod like parts are rotated with the outer surface of the body by fulcrum and are connected, The force side of the rod like parts is fixed with clamping part, and the clamping part is stretched into the breach, the force side of the rod like parts Handle portion is fixed with, flexible member is provided between the force side and the outer surface of the body.

2. chalk tube as claimed in claim 1, it is characterised in that：The rod like parts, the clamping part and the handle portion It is wholely set.

3. chalk tube as claimed in claim 1, it is characterised in that：The clamping part is in needle-like, the clamping part of needle-like Along radially extending for the body.

4. chalk tube as claimed in claim 1, it is characterised in that：The flexible member is helical spring or rubber bullet Spring.

5. chalk tube as claimed in claim 1, it is characterised in that：The handle portion is described from being less than with a distance from the fulcrum Clamping part from the fulcrum with a distance from.

6. chalk tube as claimed in claim 1, it is characterised in that：It is described go out the relative other both sides of the tip of the brushstyle of a writing or painting be respectively equipped with The groove that the tube chamber is connected, length direction extension of the groove along the body.

7. the chalk tube as described in any one of claim 1 to 6, it is characterised in that：The outer surface of the body is provided with pen Pipe grip zone, described pipe grip zone is the concave structure being adapted to finger, and the concave structure is provided with anti-skid structure.

8. chalk tube as claimed in claim 7, it is characterised in that：The anti-skid structure is form friction pattern.