CN202487013U

CN202487013U - Multifunctional pointer

Info

Publication number: CN202487013U
Application number: CN2012200487733U
Authority: CN
Inventors: 张立伟
Original assignee: 张立伟
Priority date: 2012-02-15
Filing date: 2012-02-15
Publication date: 2012-10-10
Anticipated expiration: 2022-02-15

Abstract

The utility model relates to a multifunctional pointer, belonging to teaching tools, which mainly solves the problem that the conventional pointer has a single function. The multifunctional pointer comprises a pointer body and is characterized in that: the pointer body is a telescopic pole consisting of an outer tube and an inner tube; one side of the outer tube is provided with scales; the tail end of the outer tube is provided with a chalk clamp connecting shaft; one end of an chalk clamp is fixed to the chalk clamp connecting shaft; a chalk is arranged in a chalk clamp; one side of the chalk clamp is provided with a fastening screw; the tail end of the inner tube is provided with a rotating shaft; the rotating shaft is connected with a compasses leg; and one end of the compasses leg is fixedly connected with a steel needle. The multifunctional pointer can be straightened and used as a pointer when used, can be regulated and used as a straight scale and a compass when straight lines or circles are required to be drawn on a blackboard and is extremely convenient.

Description

A kind of multi-functional teacher's pointer

Technical field

The utility model relates to a kind of teacher's pointer, specifically a kind of multi-functional teacher's pointer.

Background technology

Teacher be unable to do without teacher's pointer when classmates explain knowledge on the classroom, when blackboard upper drawing circle shape, will use the teaching aid compasses, draws straight line and will use long chi; It is pretty troublesome to switch instrument back and forth; Influenced the process that teacher teaches, traditional teacher's pointer function singleness can't satisfy more demands.

The utility model content

The purpose of the utility model is to provide a kind of multi-functional teacher's pointer, and this teacher's pointer has the function of common teacher's pointer, can also use as teaching aid compasses and ruler.

The technical scheme that its technical matters of the utility model solution is taked is: a kind of multi-functional teacher's pointer, comprise the teacher's pointer body, and described teacher's pointer body is the expansion link that outer tube and interior pipe constitute; Described outer tube one side is provided with scale, and the outer tube end is established chalk folder coupling shaft, and chalk presss from both sides an end and is fixed on the chalk folder coupling shaft, in the chalk folder chalk is installed, and chalk presss from both sides a side establishes a holding screw; The pipe end is provided with rotating shaft in described, and rotating shaft connects the compasses supporting leg, and compasses supporting leg one end is fixed with draw point.

The beneficial effect of the utility model is: can use as teacher's pointer when should multi-functional teacher's pointer stretching, and when needs are drawn straight line or when circular, can made it as ruler and compasses use through the adjustment teacher's pointer on blackboard, very convenient.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Among the figure: 1 teacher's pointer body, 2 chalks folder coupling shaft, 3 rotating shafts, 4 compasses supporting legs, 5 chalks, 6 holding screws, 7 draw points, 8 chalks folder.

Embodiment

As shown in Figure 1.A kind of multi-functional teacher's pointer comprises teacher's pointer body 1, and described teacher's pointer body 1 is the expansion link that outer tube and interior pipe constitute; Described outer tube one side is provided with scale, and the outer tube end is established chalk folder coupling shaft 2, and chalk presss from both sides 8 one ends and is fixed on the chalk folder coupling shaft 2, in the chalk folder 8 chalk 5 is installed, and chalk presss from both sides 8 one sides establishes a holding screw 6; The pipe end is provided with rotating shaft 3 in described, and rotating shaft 3 connects compasses supporting leg 4, and compasses supporting leg 4 one ends are fixed with draw point 7.

Can this multi-functional teacher's pointer is stretching when teachers impart knowledge to students, use as teacher's pointer; When needs are drawn straight line on blackboard, according to the scale line segment of standard length that can draw; When the needs picture is circular, chalk folder 8 and compasses supporting leg 4 are rotated to vertical with teacher's pointer body 1, draw point 7 is fixed on the blackboard; The circular size of drawing as required; Regulate teacher's pointer body 1 to appropriate length, can pin draw point 7 one ends, rotation chalk 5 one ends carry out the picture circle.

Claims

1. a multi-functional teacher's pointer comprises the teacher's pointer body, it is characterized in that, described teacher's pointer body is the expansion link that outer tube and interior pipe constitute; Described outer tube one side is provided with scale, and the outer tube end is established chalk folder coupling shaft, and chalk presss from both sides an end and is fixed on the chalk folder coupling shaft, in the chalk folder chalk is installed, and chalk presss from both sides a side establishes a holding screw; The pipe end is provided with rotating shaft in described, and rotating shaft connects the compasses supporting leg, and compasses supporting leg one end is fixed with draw point.