CN202022016U - Novel blackboard eraser - Google Patents

Abstract

The utility model discloses a new type of chalk eraser, which comprises a connecting rod, the connecting rod includes a left rod and a right rod, one end of the left rod is provided with an insertion groove, and one end of the right rod is provided with a The plug connector is inserted into the slot; the other end of the left rod is provided with a container for accommodating chalk, the right rod is provided with a cavity, and the other end of the right rod is provided with a socket, which communicates with the cavity. A wiping head made of high-adsorption cotton balls is plugged into the socket. In the utility model, through the structure of the connecting rod, the chalk and the rubbing head are respectively arranged on the left rod and the right rod. When the teacher makes a mistake in writing, he can directly correct the mistake with the new chalk eraser, and the teacher does not need to separate it. Finding the chalk eraser saves the time for the instructor to correct mistakes, improves the use efficiency of the chalk eraser, and facilitates the operation of the instructor.

Description

A new type of chalk eraser

technical field

The utility model relates to a stationery, in particular to a novel chalk eraser.

Background technique

Chalk eraser is commonly called as blackboard eraser, and the chalk eraser in the prior art generally adopts a plate body, and one deck cleaning cotton cloth is arranged on the plate body, and its structure is relatively simple, and function is more single, and the lecturer uses chalk to write on board bodies such as blackboard or When making a drawing, if there is a mistake, you need to pick up the chalk eraser to correct the error, which is easy to interrupt the trainer's train of thought, and often the chalk eraser is placed far away, which wastes the lecturer's time and brings a lot of inconvenience to the lecturer .

This shows that the prior art needs further improvement and development.

Utility model content

The utility model provides a new type of chalk eraser to solve the above-mentioned defects in the prior art, and scientifically and rationally improves the chalk eraser in the prior art to improve the use efficiency of the chalk eraser and facilitate the operation of the instructor.

In order to solve the above-mentioned technical problems, the utility model scheme includes:

A new type of chalk eraser, which includes a connecting rod, wherein the connecting rod includes a left rod and a right rod, one end of the left rod is provided with an insertion slot, and one end of the right rod is provided with a plug joint matching the insertion slot, The plug connector is inserted into the socket; the other end of the left rod is provided with a receiving groove for accommodating chalk, the right rod is provided with a cavity, and the other end of the right rod is provided with a socket, which communicates with the cavity, and the socket is Inserted with a wipe head made of high-absorption cotton balls.

In the new type of chalk eraser, a rubber layer is provided on the inner wall of the accommodating tank.

The novel chalk eraser, wherein, the length of the above-mentioned left rod is three centimeters to five centimeters, and the length of the right rod is five centimeters to ten centimeters.

The utility model provides a new type of chalk eraser, through the structure of the connecting rod, the left rod and the right rod are respectively provided with chalk and erasers, so that when a teacher makes a mistake in writing, he can directly modify the new type of chalk eraser In addition, the instructor does not need to look for the chalk eraser alone, which saves the time for the instructor to correct mistakes, improves the efficiency of the use of the chalk eraser, facilitates the operation of the instructor, and will not interrupt the trainer's train of thought, especially when the head is wiped off. The chalk powder can enter the cavity of the right rod by rubbing the head, which reduces the concentration of the chalk powder when the instructor is revising, and makes the environment where the instructor lives cleaner.

Description of drawings

Fig. 1 is a schematic sectional structure diagram of the left rod in the utility model;

Fig. 2 is a schematic sectional structure diagram of the right rod in the utility model.

Detailed ways

The utility model provides a new type of chalk eraser. In order to make the purpose, technical solution and advantages of the utility model clearer and clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

The utility model provides a new type of chalk eraser. The two ends of the connecting rod are respectively provided with accommodating grooves for accommodating chalk and wipe heads made of high-adsorption cotton balls, so that the chalk eraser has both writing functions and wiping chalk characters. The function improves the use efficiency of the chalk eraser and facilitates the operation of the instructor. As shown in Figure 1 and Figure 2, the new type of chalk eraser includes a connecting rod, the connecting rod includes a left rod 1 and a right rod 2, one end of the left rod 1 is provided with an insertion slot 3, and one end of the right rod 2 is provided with a plug-in groove 3. The plug connector 4 matched with the slot 3, the plug connector 4 is inserted into the slot 3 to form an integrated structure; the other end of the left rod 1 is provided with a storage tank 5 for accommodating chalk, and the right rod 2 is provided with a cavity 6. The other end of the right rod 2 is provided with a socket 7, which communicates with the cavity 6, and the socket 7 is inserted with a wipe head 8 made of high-adsorption cotton balls, thereby realizing the writing function of the chalk eraser With the function of erasing chalk characters, the application space of chalk erasing is expanded.

In order to further improve the performance of the utility model, a rubber layer is provided on the inner wall of the accommodation groove 5, which can make the connection between the chalk and the left rod 1 more stable, and facilitates the use of the lecturer. And the length of left pole 1 is three centimeters to five centimeters, and the length of right pole 2 is five centimeters to ten centimetres, makes things convenient for the lecturer to hold this novel chalk eraser and write.

Of course, the above description is not a limitation of the present utility model, and the present utility model is not limited to the above-mentioned examples, and changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the present utility model are also acceptable. Should belong to the protection scope of the present utility model.

Claims (3)

1. A new type of chalk eraser, which comprises a connecting rod, is characterized in that: the connecting rod comprises a left rod and a right rod, one end of the left rod is provided with a socket, and one end of the right rod is provided with a socket that matches the socket. The plug joint is inserted into the slot; the other end of the left rod is provided with a storage slot for accommodating chalk, the right rod is provided with a cavity, and the other end of the right rod is provided with a socket, which communicates with the cavity , a wiping head made of high-adsorption cotton balls is plugged into the socket. 2. The novel chalk eraser according to claim 1, characterized in that: a rubber layer is provided on the inner wall of the accommodating groove. 3. The novel chalk eraser according to claim 1 or 2, characterized in that: the length of the left rod is three centimeters to five centimeters, and the length of the right rod is five centimeters to ten centimeters.

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