CN204414975U - Blackboard for English teaching is wiped - Google Patents

Abstract

The utility model provides a blackboard eraser for English teaching, which comprises: a blackboard eraser body, characterized in that: a blackboard eraser cover is installed on the upper end of the blackboard eraser body, and a chalk clip is installed on the blackboard eraser cover The chalk holding device includes 4 chalk clips arranged in parallel, chalk is installed in the chalk clip, and there is a dust suction device in the blackboard eraser body, and the dust suction device includes a dust suction device A dust collection tank is installed at the lower end of the dust suction pump through an exhaust pipe, and a filter grating is installed on the exhaust pipe between the dust suction pump and the dust collection tank. The utility model can save time, and is more labor-saving and portable.

Description

blackboard eraser for english teaching

Technical field:

The utility model relates to a blackboard eraser for English teaching.

Background technique:

The current teaching blackboard erasers on the market are simple in structure, and most of them do not have the function of vacuuming, or some blackboard erasers have the function of vacuuming but need to carry a large vacuuming cylinder, which not only takes up a lot of space but is also very inconvenient to use. When teaching English, the teacher has to draw a four-line grid on the blackboard. Usually, the teacher has to draw each line one by one along the ruler. It is difficult to ensure the same spacing between each line, and a lot of waste is wasted when drawing lines teaching time. Blackboard erasers on the market usually do not have a cover, so that a large amount of dust falls around the blackboard eraser, which pollutes the teaching environment of teachers and affects the quality of teaching.

Invention content:

The purpose of the utility model is to provide a blackboard eraser for English teaching.

Above-mentioned purpose realizes by following technical scheme:

A blackboard eraser for English teaching, comprising: a blackboard eraser body, a blackboard eraser cover is installed on the upper end of the blackboard eraser body, a chalk holding device is installed on the blackboard eraser cover, and the chalk clip The holding device includes 4 chalk clips arranged in parallel, chalk is installed in the chalk clip, there is a dust suction device in the blackboard eraser body, and the dust suction device includes a dust suction pump, and the dust suction pump The lower end is equipped with an ash collection tank through the exhaust pipe, and a filter grid plate is installed on the exhaust pipe between the dust suction pump and the ash collection tank.

In the blackboard eraser for English teaching, the ash collecting tank is connected to the ash suction hole on the upper end of the blackboard eraser body through a suction pipe, and around the ash suction hole, on the upper end of the blackboard eraser A sponge pad is installed; a power supply unit is installed on the right side of the ash collecting tank, and a chalk storage device is installed on the right side of the power supply unit.

In the blackboard eraser for English teaching, a chalk storage device push cover is installed on the side of the blackboard eraser body, a power supply push cover is installed on the back of the blackboard eraser body, and a fixing device is installed above the power supply push cover. handle.

Beneficial effect:

1. This utility model is easy to use and easy to operate. Install 4 pieces of chalk on the chalk holder to draw 4 equidistant four-line grids at one time, saving time. You can also take off the upper cover of the blackboard eraser and use it alone This function is more labor-saving and lighter.

． The utility model has the function of automatically removing chalk dust when in use. The dust suction pump is driven by the built-in power supply to suck the generated chalk dust into the ash collecting tank. When there is a lot of chalk dust, take out the dust collecting tank from the side and remove Much chalk dust is poured out.

The utility model can put the chalk into the storage tank, and the sliding cover can be pushed away from the side to store and take out the chalk, which is convenient and quick, and the function of the chalk box is omitted.

Description of drawings:

Accompanying drawing 1 is the structural representation of the utility model.

Accompanying drawing 2 is a schematic diagram of the internal structure of the blackboard eraser body.

Accompanying drawing 3 is the rear view of accompanying drawing 1.

Detailed ways:

Example 1:

A kind of blackboard eraser for English teaching, its composition comprises: blackboard eraser body 1, described blackboard eraser body upper end is installed with blackboard eraser upper cover 2, described blackboard eraser upper cover is equipped with chalk clamping device 3, described The chalk clamping device comprises 4 chalk clips 4 arranged in parallel, chalk 5 is installed in the described chalk clip, there is a dust suction device in the described blackboard eraser body, and the described dust suction device includes a dust suction pump 6, The lower end of the dust suction pump is equipped with an ash collection tank 8 through the exhaust pipe 7, and a filter grid plate 9 is installed on the exhaust pipe between the dust suction pump and the dust collection tank.

Example 2:

According to the blackboard eraser for English teaching described in Embodiment 1, the ash collecting tank is connected to the ash suction hole 11 on the upper end of the blackboard eraser body through an air suction pipe 10, and around the ash suction hole, the A sponge pad 12 is installed on the upper end of the blackboard eraser; a power unit 13 is installed on the right side of the ash collecting tank, and a chalk storage device 14 is installed on the right side of the power unit.

Example 3:

According to the blackboard eraser for English teaching described in embodiment 1 or 2, a chalk storage device push cover 15 is installed on the side of the blackboard eraser body, and a power supply device push cover 16 is installed on the back of the blackboard eraser body. A fixed handle 17 is installed above the push cover of the power supply unit.

Claims (3)

1. a kind of blackboard eraser for English teaching, its composition comprises: blackboard eraser body, it is characterized in that: described blackboard eraser body upper end is equipped with blackboard eraser loam cake, and described blackboard eraser loam cake is equipped with chalk clamping device , the chalk clamping device includes 4 chalk clips arranged in parallel, chalk is installed in the chalk clip, a dust suction device is provided in the blackboard eraser body, and the dust suction device includes a dust suction pump, The lower end of the dust suction pump is equipped with an ash collection tank through the exhaust pipe, and a filter grid is installed on the exhaust pipe between the dust suction pump and the dust collection tank. 2. The blackboard eraser for English teaching according to claim 1, characterized in that: the ash collecting tank is connected with the ash suction hole on the upper end of the blackboard eraser body through an air suction pipe, A sponge pad is installed around the upper end of the blackboard eraser; a power supply device is installed on the right side of the ash collecting tank, and a chalk storage device is installed on the right side of the power supply device. 3. The blackboard eraser for English teaching according to claim 1 or 2, characterized in that: a chalk storage device push cover is installed on the side of the blackboard eraser body, and a power supply device push cover is installed on the back of the blackboard eraser body , a fixed handle is installed above the push cover of the power supply unit.