KR101653289B1

KR101653289B1 - Air pressure liquid chalk

Info

Publication number: KR101653289B1
Application number: KR1020150165333A
Authority: KR
Inventors: 최진오
Original assignee: 최진오
Priority date: 2015-11-25
Filing date: 2015-11-25
Publication date: 2016-09-01

Abstract

The present invention relates to a liquid container comprising: a body capable of receiving a liquid phase; A tip coupled to a lower end of the main body and adapted to absorb a liquid phase in the main body and to flow out to the outside; A closure cap coupled to an upper end of the main body and formed in an elastic rubber material or a bellows shape and having a through hole for allowing air to flow into an upper end thereof and supplying air pressure into the main body; A backflow preventing device coupled to an upper side of the main body and having a cut-off portion opened at the lower end by elasticity and opened by an air pressure supplied from the finishing cap; And a spring coupled to the inside of the finishing cam such that the upper end abuts against the upper end of the inside of the finishing cap and the lower end abuts against the upper end of the backflow preventing device to maintain elasticity, The cut portion is closed by the pressure difference of the cut portion and the self-elasticity, and the degree of opening of the cut portion is adjusted according to the degree of blocking the through-hole with the fingers. According to the present invention, by engaging an elastic finishing cap for supplying air pressure to the inside of the main body at the upper part of the liquid chalk, the user presses the finishing cap to supply the air pressure to the inside of the main body, It is possible to provide an air-pressure liquid-phase chalk which can prevent the outflow of the liquid phase or the loss of writing and blurring of the writing.

Description

Air pressure liquid chalk {

More particularly, the present invention relates to an air pressure liquid chuck, and more particularly, to an air pressure liquid chuck, which includes an elastic finishing cap for supplying air pressure to the inside of a main body of a liquid chuck, The present invention is to provide an air-pressure liquid-phase chalk which is capable of preventing the liquid phase outflowed to the outside from being blown out with little or no writing by blurring the liquid phase to the bottom.

The present invention relates to liquid chalks.

Generally, chalk is used mainly as a writing instrument for education in schools and academies.

Chalk is mainly made of chalkboard writing material, made of calcined gypsum, and made by adding water to cleansing soil, solidifying and curing it in a molding machine and drying it .

However, since such chalks are made by solidifying the powder, there is a problem that the chalks are easily broken even by a weak external impact.

In addition, the chalk powder is scattered around in the process of writing the chalkboard on the chalkboard after chalking it. The chalk powder may enter the body through the respiration of the educator and cause respiratory or ophthalmic diseases. Problems may arise.

Accordingly, recently, a liquid chalk made of a liquid ink has been proposed as disclosed in Korean Utility Model Registration No. 20-0324341.

Liquid chalk is a method of putting a liquid inside the body and flowing out through the tip at the bottom.

However, when the liquid phase is mostly exhausted, the pressure of the liquid phase is decreased and the amount of the liquid phase which is absorbed into the tip is absorbed and the amount of the liquid phase to be discharged to the outside is decreased.

In addition, the liquid inside the main body can not be used at all, and is discarded.

An object of the present invention, which has been devised to solve the above-mentioned problems, is to provide an air conditioner, which comprises a liquid-tight chuck, and an elastic finishing cap for supplying air pressure to the inside of the main body, The present invention is to provide an air-pressure liquid-phase chalk which is capable of preventing the liquid phase outflowed to the outside from being blown out with little or no writing by blurring the liquid phase to the bottom.

Another object of the present invention is to provide an air-pressure liquid-phase chalk capable of preventing a liquid phase from leaking to the upper end when air pressure is supplied into the main body by combining a backflow prevention device at the lower end of a finishing cap for supplying air pressure.

According to an aspect of the present invention, there is provided a liquid container comprising: a body capable of accommodating a liquid; A tip coupled to a lower end of the main body and adapted to absorb a liquid phase in the main body and to flow out to the outside; A closure cap coupled to an upper end of the main body and formed in an elastic rubber material or a bellows shape and having a through hole for allowing air to flow into an upper end thereof and supplying air pressure into the main body; A backflow preventing device coupled to an upper side of the main body and having a cut-off portion opened at the lower end by elasticity and opened by an air pressure supplied from the finishing cap; And a spring coupled to the inside of the finishing cam with an upper end thereof abutting the upper end of the inside of the finishing cap and a lower end abutting against the upper end of the backflow preventing device to maintain elasticity, The incision part is closed by the pressure difference of the incision part and the self-elasticity, and the degree of opening of the incision part is adjusted according to the degree of blocking the through-hole with the finger.

Further, the present invention is characterized in that the finishing cap is formed in a rubber material or a bellows shape.

As described above, according to the present invention, an elastic finishing cap for supplying air pressure to the inside of the main body is attached to the upper part of the liquid chalk, so that the user presses the finishing cap to supply the air pressure to the inside of the main body, Thereby providing a pneumatic liquid-phase chalk that can prevent the outflow of liquid from the outside, or to prevent writing with a small amount of writing.

Further, according to the present invention, it is possible to provide an air-pressure liquid-phase chalk capable of preventing the liquid phase from leaking to the upper end when air pressure is supplied into the main body by combining the backflow prevention device at the lower end of the finishing cap for supplying air pressure.

1 is a perspective view illustrating an air-pressure liquid chalk according to a preferred embodiment of the present invention.
2 is a cross-sectional view of a pneumatic liquid chuck according to a preferred embodiment of the present invention.
FIG. 3 is an enlarged cross-sectional view showing a state in which a finishing cap is pressed according to a preferred embodiment of the present invention.
4 is a cross-sectional enlarged view of a spring-coupled finish cap in accordance with a preferred embodiment of the present invention.
FIG. 5 is a cross-sectional enlarged view showing a state where a spring-coupled finish cap is pressed according to a preferred embodiment of the present invention.
6 is a cross-sectional enlarged view of a bellows closure cap according to a preferred embodiment of the present invention.
FIG. 7 is an enlarged cross-sectional view of a bellows closure cap according to a preferred embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the drawings for explaining an air pressure liquid chuck according to embodiments of the present invention.

1 is a perspective view showing an air-pressure liquid chalk 100 according to a preferred embodiment of the present invention.

A pneumatic liquid chalk 100 according to a preferred embodiment of the present invention includes a main body 110, a tip 120, a finishing cap 140, a check valve 130, and a spring 150.

The main body 110 accommodates a liquid phase in a space therein.

The tip 120 is coupled to the tip holder 122 and is coupled to the lower end of the main body 110 to absorb the liquid in the main body 110 and to discharge the liquid.

The finishing cap 140 is coupled to the upper end of the main body 110 and has elasticity. A through hole 142 is formed in the upper end of the main body 110 to allow air to flow therein.

The backflow prevention device 130 is coupled to the upper portion of the main body 110. The lower end of the backflow prevention device 130 is formed with an incision 132 that is closed by elasticity and opened by air pressure supplied from the finishing cap 140. [

The spring 150 is coupled to the inside of the finishing cam, the lower end of the spring 150 abuts against the upper end of the check valve 130, and the upper end thereof abuts against the inner upper end of the closing cap 140 to maintain elasticity.

2 is a cross-sectional view of an air pressure liquid chalk 100 according to a preferred embodiment of the present invention.

The finishing cap 140 introduces air into the through hole 142 and the air introduced through the through hole 142 is supplied into the main body 110 through the finishing cap 140. [ So that the liquid inside the main body is compressed in the direction of the tip 120.

However, since the liquid phase inside the main body 110 can be leaked to the outside through the through hole 142 when the main body 110 is positioned upside down, ).

The cut-off portion 132 is formed at the lower end of the backflow prevention device 130. The cut-out portion 132 is elastically closed, and the finish cap 140 compresses the air pressure into the main body 110 The cut-off portion 132 is opened by the air pressure supplied by the finishing cap 140.

In addition, the pneumatic liquid chalk 100 of the present invention may further include a steel ball 170.

The steel ball (170) is provided inside the main body (110).

The liquid in the main body 110 gradually becomes hardened when it is not used for a long time. When the liquid is slowly hardened, the viscosity increases and the user may blur or break out on the board. Therefore, It is preferable to disperse the inside liquid phase.

3 is a cross-sectional enlarged view showing a state in which the finishing cap 140 is pressed according to the preferred embodiment of the present invention.

When the liquid phase in the main body 110 is mostly exhausted, the pressure for discharging the liquid phase from the main body 110 to the tip 120 is reduced, and the user may blur or break out on the blackboard.

Therefore, it is preferable that air pressure is supplied to the inside of the main body 110 through the finishing cap 140 to press the liquid inside the main body 110 toward the tip 120.

Preferably, the finishing cap 140 supplies air pressure to the inside of the main body 110 by pressing the upper end of the finishing cap 140 with the thumb of the main body 110 as if the thumb is used with a thumb when using the sharpener.

When the finishing cap 140 is pressed with the thumb, the through hole 142 is naturally pressed and pressed after the finishing cap 140 is pushed, so that the air pressure is supplied into the main body 110.

At this time, the incision part 132 is opened by air pressure.

When the thumb is released from the finishing cap 140, the cutout portion 132 is closed by the elasticity, and the finishing cap 140 is inserted into the through-hole 142 by the pressure difference of the finishing cap 140. [ The air is introduced again.

When the thumb is released from the finishing cap 140, the cutout 132 is closed by the pressure difference and elasticity, and the inside of the finishing cap 140 is closed by the pressure difference, Respectively.

4 to 5 are enlarged sectional views showing a finishing cap 140 coupled with a spring 150 according to a preferred embodiment of the present invention and a sectional view showing a state in which the finishing cap 140 having the spring 150 coupled thereto is pressed Fig.

Air pressure is supplied to the inside of the main body 110 by pressing the finishing cap 140 with the thumb and the air pressure is supplied to the inside of the main body 110 again after the outer shape of the finishing cap 140 is restored by elasticity .

However, if the user desires to continuously supply the air pressure to the inside of the main body 110, the user must wait until the finishing cap 140 is restored from the pressed state. The restoring force of the finishing cap 140 .

The spring 150 is coupled to the inside of the finishing cap 140 and the upper end of the spring 150 is in contact with the inner upper end of the finishing cap 140 and the lower end of the spring 150 is in contact with the upper end of the backflow prevention device 130 to maintain elasticity.

6 through 7 are enlarged cross-sectional views of a bellows 160 closure cap 140 and a bellows 160 closure cap 140, respectively, according to a preferred embodiment of the present invention.

The closure cap 140 may be formed as a bellows 160.

The bellows 160 preferably presses the upper end of the bellows 160 with the thumb to supply the air pressure to the inside of the main body 110 as if the bellows 160 is used with a thumb when using the sharpener.

When the bellows 160 is pressed with a thumb, the bellows 160 is naturally pressed and then the air pressure is supplied into the main body 110 by pressing the through-hole 142.

At this time, the incision part 132 is opened by air pressure.

The bellows 160 may supply air pressure to the inside of the main body 110 by pressing with the thumb of the bellows 160 and the air pressure may be supplied to the inside of the main body 110 again after the outer shape of the bellows 160 is restored by elasticity.

However, if the user continuously tries to supply the air pressure to the inside of the main body 110, it is necessary to wait until the bellows 160 is restored from the pressed state, and the restoring force of the bellows 160 is raised .

The spring 150 is coupled to the inside of the bellows 160 and the upper end of the spring 150 abuts against the inner upper end of the bellows 160 while the lower end thereof abuts against the upper end of the backflow prevention device 130 to maintain elasticity.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and range of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

100: Chalk 110: Body
120: Tip 122: Tip holder
130: backflow prevention device 132: incision part
140: Finishing cap 142: Through-hole
150: spring 160: bellows
170: Steel ball

Claims

A body capable of receiving a liquid phase;
A tip coupled to a lower end of the main body and adapted to absorb a liquid phase in the main body and to flow out to the outside;
A closure cap coupled to an upper end of the main body and formed in an elastic rubber material or a bellows shape and having a through hole for allowing air to flow into an upper end thereof and supplying air pressure into the main body;
A backflow preventing device coupled to an upper side of the main body and having a cut-off portion opened at the lower end by elasticity and opened by an air pressure supplied from the finishing cap;
And a spring connected to the inside of the finishing cam and having an upper end abutting the upper end of the inside of the finishing cap and a lower end abutting against the upper end of the backflow preventing device to maintain elasticity,
Wherein when the through hole of the finishing cap is pressed and released by a finger, the incision portion is closed by the pressure difference of the incision portion and the self-elasticity, and the degree of opening of the incision portion is adjusted according to the degree of blocking the through- Air pressure liquid chalk.

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