CN201745301U - Multipurpose chalk jacket - Google Patents

Abstract

The utility model provides a multipurpose chalk jacket, belonging to the field of teaching appliances. the chalk jacket comprises a sleeve, the upper end of the sleeve is provided with a split opening, a locking ring sleeves the lower part of the split opening, namely the upper part of the sleeve, an infrared irradiation apparatus is connectedly disposed at the lower end of the sleeve, one side of the infrared irradiation apparatus is provided with a sucker. The chalk jacket, compared with the prior art, is characterized by reasonable design, convenient use, improving chalk utilization rate, and dual uses in one body.

Description

A kind of chalk sleeve of using more

Technical field

The utility model relates to a kind of teaching aid, specifically a kind of chalk sleeves of using more.

Background technology

Chalk is the instrument that widely uses in the daily teaching life, generally is used for book and writes on the blackboard.Because need of work, the teacher often need write on blackboard, draw and explain.Chalk fractures easily, and the chalk head is write inconvenience, is often thrown away by the teacher, and directly contacts with chalk for a long time, can damage skin.The time also need usually to teach bar to assist in teaching, after the use, chalk, religion bar are put together, put relatively like this to mix, and are easy to tumble and put ground.

Summary of the invention

Technical assignment of the present utility model is at the deficiencies in the prior art, and a kind of chalk sleeves of using reasonable in design, simple in structure are provided more.

The technical scheme that its technical problem that solves the utility model adopts is: comprise sleeve, it is uncovered that the sleeve upper end is provided with distinguish, the uncovered bottom of distinguish is that upper cartridge is with retaining ring, the sleeve lower end is provided with infrared radiation device and coupled, and infrared radiation device one side is provided with sucker.

Retaining ring is that rubber is made, and retaining ring is provided with anti-skidding line.

Infrared radiation device bottom end surface is provided with irradiation light.

Infrared radiation device one side is provided with button.

During use, push away, chalk from the uncovered sleeve of packing into of distinguish, will be pushed away on the retaining ring again, chalk can be fixed under the retaining ring.Sleeve is inverted, and hand touches the button, and irradiation light can emit beam.When not using, the sucker on the infrared radiation device is adsorbed on the top layer, placed side, prevents that it from tumbling.

Of the present utility model a kind of many with chalk sleeve compared with prior art, the beneficial effect that is produced is:

1, prevents that chalk from fractureing, avoid the chalk head to be dropped, improved the utilization rate of chalk, also reduced human body simultaneously and directly contacted with chalk.

2, can use as the religion bar, and volume is little, easy to carry, the operation is comparatively simple.Can hold when putting and put ground surface, prevent that it from tumbling.

3, have characteristics such as reasonable in design, simple in structure, easy to use, practicality, thereby have excellent popularization and use prospect.

Description of drawings

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

Among the figure, 1, chalk, 2, distinguish is uncovered, 3, retaining ring, 4, anti-skidding line, 5, sleeve, 6, the infrared radiation device, 7, button, 8, irradiation light, 9, sucker.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is done following detailed description the in detail.

As shown in drawings, a kind of chalk sleeves of using of the present utility model more, its structure comprises sleeve 5, sleeve 5 upper ends are provided with distinguish uncovered 2, uncovered 2 bottoms of distinguish are that sleeve 5 tops are with retaining ring 3, sleeve 5 lower ends are provided with infrared radiation device 6 and coupled, and infrared radiation device 6 one sides are provided with sucker 9.

Retaining ring 3 is made for rubber, and retaining ring 3 is provided with anti-skidding line 4.

Infrared radiation device 6 bottom end surfaces are provided with irradiation light 8.

Infrared radiation device 6 one sides are provided with button 7.

Can guarantee chalk 1 head is fixed on the upper end of sleeve 5 by retaining ring 3.

Of the present utility model a kind of how simple and convenient with its processing and fabricating of chalk sleeve, processing and fabricating gets final product shown in the by specification accompanying drawing.

Except that the described technical characterictic of specification, be those skilled in the art's known technology.

Claims (4)

1. use chalk sleeve one kind more, comprise sleeve, it is uncovered to it is characterized in that the sleeve upper end is provided with distinguish, and the uncovered bottom of distinguish is that upper cartridge is with retaining ring, the sleeve lower end is provided with infrared radiation device and coupled, and infrared radiation device one side is provided with sucker.

2. according to claim 1 a kind ofly use chalk sleeve more, it is characterized in that retaining ring is that rubber is made, retaining ring is provided with anti-skidding line.

3. according to claim 1 a kind ofly use chalk sleeve more, it is characterized in that infrared radiation device bottom end surface is provided with irradiation light.

4. according to claim 1 a kind ofly use chalk sleeve more, it is characterized in that infrared radiation device one side is provided with button.