A retractable teaching laser bar with a laser head
A laser rod and laser head technology, used in educational appliances, instruments, reading aids, etc., can solve the problems of inability to realize teachers' data storage, carrying and recreation, inability to store data, and inability to interact with users, and achieve good practical value. Effect
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[0018] In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.
[0019] See figure 1 , figure 2 and image 3 , the present embodiment provides a laser head retractable laser rod for teaching, including a cylindrical laser rod body 1, the cylindrical laser rod body is provided with a laser head 2 that can be stretched back and forth, and a sleeve is provided at the end of the laser head 2 4. The sleeve is sleeved on a reciprocating screw rod 5, and the reciprocating screw rod 5 is driven by a stepping motor 6 to facilitate the reciprocating movement of the sleeve 4 on the reciprocating screw rod; thus, the laser head 2 Driven by the reciprocating screw mandrel, it can expand and contract back and forth; a circuit board 7 and a battery 8 for powering the circuit board are also arranged in the cylindrical laser rod body 1; t...
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