CN210454235U - Portable water writing demonstration device - Google Patents

Abstract

The utility model relates to the field of water writing cloth, in particular to a portable water writing demonstration device, which comprises a water writing pen and water writing cloth; the water writing cloth comprises a water writing cloth main body, and the corners of the water writing cloth main body are provided with hanging holes; a sucker hook for hooking the water writing cloth is arranged in the hooking hole; the water writing cloth main body comprises an adsorption layer, a graphite layer, a water absorption layer and a white coating layer; the adsorption layer, the graphite layer, the water absorption layer and the white coating layer are sequentially laid; the adsorption layer is positioned below the graphite layer; the graphite layer is positioned below the water absorbing layer; the water absorbing layer is arranged below the white coating layer. The utility model discloses a novel water writing demonstration device; the actual operation of an operator can be facilitated through the cooperation of the water writing pen and the water writing cloth; ensuring the actual demonstration function; simultaneously the utility model discloses design 4 layer structures to water writing cloth, through effect each other, when realizing showing the effect of typeface, still make typeface display time prolong, guarantee the actual demonstration effect.

Description

Portable water writing demonstration device

Technical Field

The utility model relates to a water writing cloth field is a portable water writing presentation device particularly.

Background

At present, the national education system, especially the daily teaching of schools at all levels, usually adopts a blackboard and chalks as main teaching tools, and the teaching tools certainly save many advantages of the blackboard, such as good identification degree, convenient writing and low price. The white writing board is relatively used in common scientific research units, companies or departments, but has certain limitations, such as unsatisfactory recognition degree in the teaching and treasure scope, only can be used in a small scope, high price and easy environmental pollution caused by organic pigments. In companies, slide projectors or projectors are commonly used by scientific research units, and projection screens are required, so that the space is occupied, and the space limitation is large. In the next common phenomenon, in a classroom, the blackboard, the whiteboard and the slide show or projection occupy space and are messy, and the display effect is not ideal enough for users; a new type of water-writing demonstration device that is wiping free and has a long retention time of writing is now needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a novel water writing demonstration device which is free from wiping and has long writing retention time.

In order to realize the purpose, the utility model discloses a technical scheme be:

a portable water writing demonstration device comprises a water writing pen and water writing cloth; the water writing cloth comprises a water writing cloth main body, and the corners of the water writing cloth main body are provided with hanging holes; a sucker hook for hooking the water writing cloth is arranged in the hooking hole; the water writing cloth main body comprises an adsorption layer, a graphite layer, a water absorption layer and a white coating layer; the adsorption layer, the graphite layer, the water absorption layer and the white coating layer are sequentially laid; the adsorption layer is positioned below the graphite layer; the graphite layer is positioned below the water absorbing layer; the water absorbing layer is arranged below the white coating layer.

The adsorption layer is a PVR adsorption film.

A hanging notch is arranged on the side wall of the hanging hole; and a steel clamping ring is attached to the inner wall of the hanging hole.

The steel collar cross-section is the U type.

The water writing pen comprises a pen body and a pen point; the pen point comprises a pen point body, and the width of one end, far away from the pen body, of the pen point body is larger than that of one end, close to the pen body, of the pen point body; the end part of the pen point body, which is far away from one end of the pen body, is arc-shaped.

The utility model has the advantages that: a

The utility model discloses a novel water writing demonstration device; the actual operation of an operator can be facilitated through the cooperation of the water writing pen and the water writing cloth; ensuring the actual demonstration function; simultaneously the utility model discloses design 4 layer structures to water writing cloth, through effect each other, when realizing showing the effect of typeface, still make typeface display time prolong, guarantee the actual demonstration effect.

Drawings

The contents of the various figures of the specification and the labels in the figures are briefly described as follows:

fig. 1 is a front view of the present invention.

Fig. 2 is a schematic structural view of the middle water writing cloth main body of the present invention.

Fig. 3 is a schematic structural view of the medium water writing pen of the present invention.

The labels in the above figures are:

1. water writing cloth main part, 2, hookup hole, 3, the handwriting, 4, nib.

Detailed Description

The following description of the preferred embodiments of the present invention will be made in further detail with reference to the accompanying drawings.

A portable water writing demonstration device comprises a water writing pen and water writing cloth; the water writing cloth is characterized by comprising a water writing cloth main body 1, wherein the corners of the water writing cloth main body 1 are provided with hanging holes 2; a sucker hook for hooking the water writing cloth is arranged in the hooking hole 2; the water writing cloth main body 1 comprises an adsorption layer 101, a graphite layer 102, a water absorption layer 103 and a whitening layer 104; the adsorption layer 101, the graphite layer 102, the water absorption layer 103 and the white coating layer 104 are sequentially laid; the adsorption layer 101 is positioned below the graphite layer 102; the graphite layer 102 is positioned below the water absorption layer 103; the water absorption layer 103 is arranged below the white coating layer 104; the utility model discloses a novel water writing demonstration device; the actual operation of an operator can be facilitated through the cooperation of the water writing pen and the water writing cloth; ensuring the actual demonstration function; preferably, the edge of the water writing cloth is provided with the sucker hook, the sucker hook is a known technology, and the water writing cloth can be hooked through the sucker hook, so that the longitudinal arrangement of the water writing cloth is ensured; meanwhile, the utility model optimizes the whole structure of the water writing cloth, the water writing cloth is divided into four layers, the bottom layer is the adsorption layer 101, the adsorption layer 101 is a PVR adsorption film, and the design can not only effectively protect the water writing cloth, but also be easily attached to the wall surface, the blackboard surface and the like, so that the application range of the demonstration device is wider; the adsorption layer 101 is provided with a graphite layer 102, the graphite layer 102 is an optimization of the traditional black cloth layer, the performance of the graphite layer 102 is relatively stable due to the characteristics of the graphite layer, and meanwhile, after water penetrates through the upper white coating layer 104 and the water absorption layer 103, the ink color font can be presented on the surface of the water writing cloth according to the refraction principle, so that the font displaying function is realized; the graphite layer 102 is provided with a water absorption layer 103, and the water absorption layer 103 can be replaced by water absorption paper in practice; the water absorption layer 103 can prolong the display time of the water-written characters, the thickness of the water absorption paper can be selected individually according to specific conditions, and the thicker the water absorption paper is, the longer the display time of the water-written characters is; therefore, the thickness of the layer can be adjusted to achieve different effects of writing retention time, the top layer of the water writing cloth is a white coating layer 104, and the water writing cloth is required to be soft and smooth and is easy to write; the whitening layer 104 is known in the art and will not be described in detail herein.

Preferably, the side wall of the hitching hole 2 in the utility model is provided with a hitching notch 21; the arrangement of the hanging gap 21 plays a role in limiting, and the hanging gap 21 is matched with the bulge on the sucker hook, so that the positioning operation of the water writing cloth can be better realized; the connection between the water writing cloth and the sucker hook is more convenient; meanwhile, a steel collar is attached to the inner wall of the hanging hole 2 in the utility model; the steel clamping ring is clamped at the edge of the water writing cloth hanging hole 2, so that the strength of the hanging hole 2 can be increased, and the problem that the hanging hole 2 on the water writing cloth is damaged is basically avoided; as preselection, the section of the steel clamping ring in the utility model is U-shaped; u type opening joint is on water writing cloth, and then realizes such setting of being connected of steel rand and water writing cloth, makes things convenient for being connected of steel rand and water writing cloth.

Preferably, the water writing pen of the utility model comprises a pen body 3 and a pen point 4; the pen tip 4 comprises a pen tip body 41, and the width of one end of the pen tip body 41 far away from the pen body 3 is larger than that of one end close to the pen body 3; the end part of the pen point body 41 far away from one end of the pen body 3 is arc-shaped 42; through the structure, the structure of the ink pen is optimized, the ink pen adopts the pen body metal structure of a common pen, and belongs to the known technology, the hollow pen tube is used for containing writing liquid, and the writing requirement is realized through the gravity and the capillary action; the optimization of the pen point 4 is to optimize the structure of the pen point 4, the pen point 4 of the reclaimed water pen of the utility model adopts a smooth round structure, namely the end part is in an arc-shaped 42 structure, and the concrete structure is shown in the attached drawing; through the structural design, the smoothness of writing on the surface of the water writing cloth by the water writing pen can be better ensured; because the utility model discloses the optimization to the water writing pen concentrates on nib 4, has adopted original technique to handwriting 3, so in the utility model discloses only statement in detail to nib 4, to this well-known technique of pen-holder, no longer describe here, though do not describe in detail, because the pen-holder of traditional pen is the well-known technique, so the utility model discloses well pen-holder need not introduce too much, the utility model discloses well water writing pen is exactly the improvement that goes on with traditional pen as the template, has only changed the writing liquid in nib 4 and the brush tube; meanwhile, in order to increase the retention time of writing after writing, the utility model adds writing materials matched with the water writing paper, and the compound water writing liquid mainly containing butyl acetate, the butyl acetate has the characteristics of no color, no toxicity, higher boiling point, weaker volatility and the like, and the novel water writing paper disclosed by the utility model is matched with the water writing liquid; make the utility model discloses a presentation device, the handwriting save time on water writing paper can reach about 1 hour, can satisfy the demand of most demonstration scenes.

Obviously the specific implementation of the present invention is not limited by the above-mentioned manner, and various insubstantial improvements made by the method concept and technical solution of the present invention are all within the protection scope of the present invention.

Claims (5)

1. A portable water writing demonstration device comprises a water writing pen and water writing cloth; the water writing cloth is characterized by comprising a water writing cloth main body, wherein the corners of the water writing cloth main body are provided with hanging holes; a sucker hook for hooking the water writing cloth is arranged in the hooking hole; the water writing cloth main body comprises an adsorption layer, a graphite layer, a water absorption layer and a white coating layer; the adsorption layer, the graphite layer, the water absorption layer and the white coating layer are sequentially laid; the adsorption layer is positioned below the graphite layer; the graphite layer is positioned below the water absorbing layer; the water absorbing layer is arranged below the white coating layer.

2. The portable water-writing demonstration device of claim 1, wherein the adsorption layer is a PVR adsorption film.

3. The portable water writing demonstration device according to claim 1, wherein a hanging notch is provided on a side wall of the hanging hole; and a steel clamping ring is attached to the inner wall of the hanging hole.

4. A portable water-writing demonstration device according to claim 3 wherein the steel collar is U-shaped in cross-section.

5. A portable water-writing demonstration apparatus according to claim 1 wherein the water-writing pen comprises a pen body and a pen tip; the pen point comprises a pen point body, and the width of one end, far away from the pen body, of the pen point body is larger than that of one end, close to the pen body, of the pen point body; the end part of the pen point body, which is far away from one end of the pen body, is arc-shaped.

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