CN204845226U - Save material takes mouth chalk - Google Patents

Abstract

The utility model relates to a chalk especially relates to a save material takes mouth chalk. This save material takes mouth chalk, including the handwriting, a pot head of handwriting be equipped with the pen socket, the pen socket includes inlayer, skin and lies in the hollow layer between the inlayer skin, profile that the position was pressed down along forefinger, middle finger and thumb to the outer inside stay cord of wearing to be equipped with, stay cord is worn to establish and inside and wear out to constitute a threading return circuit by the position that penetrates with outer, the tip of stay cord is provided with to fix a position to be buckled. The utility model discloses the handheld short and small chalk of can being convenient for has, avoid pointing the atress inhomogeneous, prevent that the finger warp, saves effectively beneficial effect such as chalk material cost.

Description

Save the band mouth chalk of material

Technical field

The utility model relates to a kind of chalk, especially relates to a kind of band mouth chalk saving material.

Background technology

Existing chalk in use, when chalk remain shorter time, usually all to abandon, cause the waste of material, also want the manpower and materials of overspending even if reclaim.And chalk is generally the thin truncated cone-shaped structure in thick one end, one end, the structural strength of whole chalk diverse location is different, ruptures than being easier to, post-rift chalk length is shorter, be not easy to hand-held, hand-held shorter chalk easily causes finger pressure uneven for a long time, makes fingers deformed; And do not use post-rift chalk easily to cause the waste of material yet.

Utility model content

The utility model mainly for the problems referred to above, the band mouth chalk providing a kind of and can be convenient to hand-held short and small chalk, avoid pointing discontinuity, prevent fingers deformed, effectively save chalk material cost.

The purpose of this utility model is mainly achieved by following proposal: a kind of band mouth chalk saving material, comprise handwriting, one end of described handwriting is arranged with the pen cap, the pen cap comprises internal layer, skin and the hollow layer between internal layer skin, outer inside is equipped with stay cord, stay cord wears inner with skin along the profile of forefinger, middle finger and thumb press position and is passed by the position penetrated and form a threading loop, and the end of stay cord is provided with locating button.The sheathed pen cap in one end of handwriting, only remain shorter part when chalk fracture or through using, can be extended the total length of chalk by the pen cap, the hand-held pen cap can be convenient to use the chalk of shorter part, saves the material of chalk.The pen cap is the double-decker be made up of internal layer, skin, has hollow layer between internal layer and skin, hollow layer can by internal layer and skin spaced apart.Outer inside wears stay cord, and stay cord wears along the profile of forefinger, middle finger and thumb press position, when pulling the end of stay cord, the part that stay cord stretches out in outside the pen cap is elongated, the part being positioned at pen cap inside is tightened up, after stay cord tightens up, stay cord around scope in skin be recessed to form pit towards internal layer direction, by locating button to stretch out stay cord location.Internal layer can not only be made to be fitted in closely on chalk, and the pressing pit of forefinger, middle finger and thumb can be formed on the pen cap, and when forefinger, middle finger and thumb press are in pit, can be spacing to finger by pit, ensure finger uniform force, avoid fingers deformed.After chalk is fully used, loosen stay cord by locating button, stay cord is positioned at part outside the pen cap to be shortened, the outer reinstatement of the pen cap, and the outer pressure that tightens up to internal layer reduces, and then reduces internal layer to the pressure of chalk, can clamping chalk again.

As preferably, described hollow layer is by pore and turned on outside.When straining stay cord, the air in hollow layer is discharged by pore, is convenient to outer towards internal layer direction depressed deformation; When loosening stay cord, extraneous air can enter hollow layer by pore, is convenient to outer reinstatement.

As preferably, described gas cell distribution is on the end face of the pen cap.Gas cell distribution, on the end face of the pen cap, can be convenient to extraneous air and evenly enter hollow layer.

As preferably, outer outer surface be positioned at stay cord around scope be provided with several anti-skidding salient points.Stay cord around scope be the position of finger presses, when straining without the need to using stay cord, anti-skidding salient point also can increasing friction force anti-skidding to finger; When using stay cord tension, anti-skidding salient point can coordinate pit spacing anti-skidding to finger.

Therefore, the band mouth chalk of saving material of the present utility model possesses following advantage: when chalk fracture or through using only surplus shorter part, can be extended the total length of chalk by the pen cap, the hand-held pen cap can be convenient to use the chalk of shorter part, saves the material of chalk.The pen cap is the double-decker be made up of internal layer, skin, has hollow layer between internal layer and skin, hollow layer can by internal layer and skin spaced apart.Outer inside wears stay cord, and stay cord wears along the profile of forefinger, middle finger and thumb press position, when pulling the end of stay cord, the part that stay cord stretches out in outside the pen cap is elongated, the part being positioned at pen cap inside is tightened up, after stay cord tightens up, stay cord around scope in skin be recessed to form pit towards internal layer direction, by locating button to stretch out stay cord location.Internal layer can not only be made to be fitted in closely on chalk, and the pressing pit of forefinger, middle finger and thumb can be formed on the pen cap, and when forefinger, middle finger and thumb press are in pit, can be spacing to finger by pit, ensure finger uniform force, avoid fingers deformed.。

Accompanying drawing explanation

Accompanying drawing 1 is the utility model a kind of structural representation in its natural state;

Accompanying drawing 2 is the utility model a kind of structural representations under the state of tightening up;

Accompanying drawing 3 is partial sectional views of pen cap sidewall;

Accompanying drawing 4 is the utility model a kind of structural representations in example 2.

Illustrate: 1-handwriting, the 2-pen cap, 21-internal layer, 22-is outer, 23-hollow layer, 24-pore, 3-stay cord, 4-pit, 5-locating button, the anti-skidding salient point of 6-.

Detailed description of the invention

Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.

Embodiment 1: as shown in Figure 1, a kind of band mouth chalk saving material, comprise handwriting 1, one end of handwriting is arranged with the pen cap 2.As shown in Figure 3, the pen cap comprises internal layer 21, skin 22 and the hollow layer 23 between internal layer skin, and hollow layer is by pore 24 and turned on outside, and gas cell distribution is on the end face of the pen cap.Outer inside is equipped with stay cord 3, and stay cord wears inner with skin along the profile of forefinger, middle finger and thumb press position and passed by the position penetrated and form a threading loop, and the end of stay cord is provided with locating button 5.

The sheathed pen cap in one end of handwriting, only remain shorter part when chalk fracture or through using, can be extended the total length of chalk by the pen cap, the hand-held pen cap can be convenient to use the chalk of shorter part, saves the material of chalk.The pen cap is the double-decker be made up of internal layer, skin, has hollow layer between internal layer and skin, hollow layer can by internal layer and skin spaced apart.Outer inside wears stay cord, and stay cord wears along the profile of forefinger, middle finger and thumb press position, when pulling the end of stay cord, as shown in Figure 2, the part that stay cord stretches out in outside the pen cap is elongated, and the part being positioned at pen cap inside is tightened up, after stay cord tightens up, stay cord around scope in skin be recessed to form pit 4 towards internal layer direction, by locating button to stretch out stay cord location.Internal layer can not only be made to be fitted in closely on chalk, and the pressing pit of forefinger, middle finger and thumb can be formed on the pen cap, and when forefinger, middle finger and thumb press are in pit, can be spacing to finger by pit, ensure finger uniform force, avoid fingers deformed.After chalk is fully used, loosen stay cord by locating button, stay cord is positioned at part outside the pen cap to be shortened, the outer reinstatement of the pen cap, and the outer pressure that tightens up to internal layer reduces, and then reduces internal layer to the pressure of chalk, can clamping chalk again.When straining stay cord, the air in hollow layer is discharged by pore, is convenient to outer towards internal layer direction depressed deformation; When loosening stay cord, extraneous air can enter hollow layer by pore, is convenient to outer reinstatement.Gas cell distribution, on the end face of the pen cap, can be convenient to extraneous air and evenly enter hollow layer.

Embodiment 2: the present embodiment is substantially identical with the structure of embodiment 1, and difference is, as shown in Figure 4, outer outer surface be positioned at stay cord around scope be provided with several anti-skidding salient points 6.Stay cord around scope be the position of finger presses, when straining without the need to using stay cord, anti-skidding salient point also can increasing friction force anti-skidding to finger; When using stay cord tension, anti-skidding salient point can coordinate pit spacing anti-skidding to finger.

Should be understood that this embodiment is only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model instruction.

Claims (4)

1. save the band mouth chalk of material for one kind, comprise handwriting, it is characterized in that, one end of described handwriting is arranged with the pen cap, the pen cap comprises internal layer, skin and the hollow layer between internal layer skin, outer inside is equipped with stay cord, and stay cord wears inner with skin along the profile of forefinger, middle finger and thumb press position and passed by the position penetrated and form a threading loop, and the end of stay cord is provided with locating button.

2. the band mouth chalk of saving material according to claim 1, it is characterized in that, described hollow layer is by pore and turned on outside.

3. the band mouth chalk of saving material according to claim 2, is characterized in that, described gas cell distribution is on the end face of the pen cap.

4. the band mouth chalk of the saving material according to claim 1 or 2 or 3, is characterized in that, outer outer surface be positioned at stay cord around scope be provided with several anti-skidding salient points.