TWM594544U - Wet and dry combination blackboard eraser - Google Patents

Abstract

A dry and wet combination blackboard wiper, at least comprising: a first wiper with a cotton layer at the bottom for dry wiping the blackboard; and a second wiper connected to the first wiper and a sponge at the bottom of the second wiper Layer to wipe the blackboard wet. This creation can prevent dust from harming the human body through people's respiratory system. The use of wet and dry design can prevent the trouble of dust flying on the face, hair, and clothing surface caused by the flying of chalk foam. Hand-held design can bring a more convenient, healthier and more concise user experience for erasing blackboards.

Description

Wet and dry combination blackboard eraser

This creation is about a kind of eraser, especially about a combination of wet and dry blackboard eraser.

According to national data, the occupational disease rate of teachers is increasing year by year. Among them, pneumoconiosis caused by dust and various acute and chronic respiratory diseases are the most important, most harmful and most widespread occupational diseases in China. The common blackboard eraser just puts the felt in the metal box, which has the following disadvantages: the pollution of the chalk foam cannot be controlled, the blackboard cannot be wiped clean, and the chalk dust on the wool layer of the blackboard wiper cannot be removed. When the teacher wipes the blackboard in class, the chalk dust flying in the air is sucked into the lungs, and long-term use will cause great damage to the health of teachers and students. Dust affects the health of teachers and students, and it is difficult for users to remove the dust.

In view of the problems of the above-mentioned conventional skills, one of the purposes of this creation is to provide a combination of wet and dry blackboard erasers to prevent dust from harming the human body through people's respiratory systems. The use of wet and dry design can prevent chalk foam from flying around. Dust falling on the face, hair, and troubles on the surface of the clothes. This creative humanized hand design can bring a more convenient, healthier, and more concise user experience for erasing blackboards.

In order to achieve the aforementioned purpose, this creation proposes a dry-wet combination blackboard eraser, which at least includes: a first wiper with a cotton cloth layer at the bottom for dry erasing the blackboard; and a second wiper connected to the first wiper, the first 2. A sponge layer is provided on the bottom of the wiper to wipe the blackboard wet.

The second wiping member is connected to the first wiping member via a connecting member.

The first wiping member has a first grip portion disposed on the cotton cloth layer.

The second wiping member has a second grip portion disposed on the sponge layer.

The two ends of the connecting piece are connected to the first holding portion and the second holding portion.

The connecting piece is detachably connected to the first grip portion and the second grip portion.

According to the above, the dry and wet combination blackboard eraser according to this creation may have one or more of the following advantages:

(1) Put the wet part (second wiper) in front to wipe the font. The sponge on the wet side can effectively take away the powder on the blackboard, play a dustproof role, and it is clean without leaving white.

(2) Subsequently, using the cotton cloth's water absorption characteristics, use the cotton cloth layer of the first wiper to absorb a small amount of moisture left on the blackboard to achieve the effect of still drying the board surface after wiping.

In order to better understand the technical features, content and advantages of this creation and the achievable effects, the creation is combined with the drawings, and the expressions of the embodiments are described in detail below. The purpose of the drawings used is only For the purpose of illustration and supplementary instruction, it may not be the true proportion and precise configuration after the implementation of the creation, so the proportion and configuration relationship of the attached drawings should not be interpreted and limited to the scope of the actual rights of the creation. In addition, for ease of understanding, the same elements in the following embodiments are described with the same symbols.

Please refer to FIG. 1 and FIG. 2 together. FIG. 1 is a schematic side view of a dry-wet combination blackboard eraser created in FIG. 2 and FIG. 2 is a perspective schematic view of a dry-wet combination blackboard eraser created in it.

The dry and wet combination blackboard eraser of this creation includes at least: a first wiping member 10 with a cotton cloth layer 12 at the bottom for dry wiping the blackboard; and a second wiping member 20 connected to the first wiping member 10 and the second wiping member 20 A sponge layer 22 is provided at the bottom to wipe the blackboard wet.

The second wiper 20 may be connected to the first wiper 10 via the connection 30, for example.

The first wiper 10 may, for example, have a first grip 14 disposed on the cotton layer 12. By wiping the blackboard with the cotton cloth layer 12 by holding the first grip portion 14 in hand, it is possible to avoid soiling the hand.

The second wiper 20 may have a second grip portion 24 disposed on the sponge layer 22, for example. By holding the second grip portion 24 in hand and using the sponge layer 22 to wipe the blackboard wet, it is possible to prevent the water in the sponge layer 22 from flowing out and getting the hands wet.

Both ends of the connecting member 30 can be connected to the first grip portion 14 and the second grip portion 24, for example. The connector 30 may be a flexible member such as a spring or a hard member such as a rod.

The connecting member 30 may, for example, detachably connect the first grip portion 14 and the second grip portion 24.

The method of use of this creation is as follows: when the user wants to wipe the blackboard in a wet first and then dry way, the user can first wet the blackboard by holding the second grip portion 24 by pressing the second grip portion 24 allows the water in the sponge layer 22 at the bottom to be squeezed out to wipe the blackboard wet. Then, the first grip 14 is taken by hand to dry wipe the blackboard, thereby wiping off the water remaining on the blackboard. The above wiping method is only an example, and the user can adjust the usage according to actual needs or usage habits.

In summary, the dry-wet combination blackboard eraser according to this creation can have one or more of the following advantages: (1) Put the wet part (second wiper) in front to wipe the font, damp The sponge on the surface can effectively take away the powder on the blackboard, play a dustproof role, and it is clean and does not leave white. (2) Subsequently, using the cotton cloth's water absorption characteristics, use the cotton cloth layer of the first wiper to absorb a small amount of moisture left on the blackboard to achieve the effect of still drying the board surface after wiping.

The above is only exemplary, and not restrictive. Any equivalent modifications or changes made without departing from the spirit and scope of this creation shall be included in the scope of the attached patent application.

10: The first wiper 12: cotton layer 14: The first grip 20: Second wiper 22: Sponge layer 24: Second grip 30: connector

Figure 1 is a schematic side view of the dry-wet combination blackboard eraser.

Figure 2 is a three-dimensional schematic diagram of the dry and wet combination blackboard eraser.

10: The first wiper

12: cotton layer

14: The first grip

20: Second wiper

22: Sponge layer

24: Second grip

30: connector

Claims (6)

A wet and dry combination blackboard eraser, at least contains: A first wiper with a layer of cotton cloth at the bottom for dry wiping the blackboard; and A second wiper is connected to the first wiper. A sponge layer is provided at the bottom of the second wiper to wipe the blackboard wet. The wet and dry combination blackboard eraser as described in item 1 of the patent application scope, wherein the second wiping member is connected to the first wiping member via a connecting member. The wet and dry combination blackboard eraser as described in item 2 of the patent application scope, wherein the first wiping member has a first grip portion disposed on the cotton cloth layer. The wet and dry combination blackboard eraser as described in item 3 of the patent application scope, wherein the second wiping member has a second grip portion disposed on the sponge layer. The wet and dry combination blackboard eraser as described in item 4 of the patent application scope, wherein both ends of the connecting member are connected to the first grip portion and the second grip portion. The wet and dry combination blackboard eraser as described in item 5 of the patent application scope, wherein the connecting member is detachably connected to the first grip portion and the second grip portion.

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