CN206726540U

CN206726540U - Teaching pole

Info

Publication number: CN206726540U
Application number: CN201720377280.7U
Authority: CN
Inventors: 杨长余
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-04-11
Filing date: 2017-04-11
Publication date: 2017-12-08
Anticipated expiration: 2027-04-11

Abstract

The utility model discloses a kind of teaching pole, belongs to the tutor auxiliary platform fixture fields used in teaching process, to solve the problems, such as that existing teaching pole use range is limited.The utility model includes expansion link, the expansion link includes first body of rod, second body of rod and the 3rd body of rod, one section of internal thread is provided with first body of rod, hollow lead screw is provided with second body of rod, the outer surface of the hollow lead screw is provided with the external screw thread worked in coordination with the first body of rod internal thread, the inner surface of hollow lead screw is provided with internal thread, 3rd body of rod is provided with screw mandrel, screw mandrel is provided with the external screw thread worked in coordination with hollow lead screw internal thread, infrared display ball is provided with the top of 3rd body of rod, battery is provided with first body of rod, first body of rod is externally provided with switch, the switch, battery and infrared display ball form loop.The writing on the blackboard instruction and content of multimedia instruction that the utility model is used in teaching process.

Description

Teaching pole

Technical field

The tutor auxiliary platform utensil used in a kind of teaching process is the utility model is related to, specifically, is related to a kind of teaching pole.

Background technology

In field research practice, teaching pole is capable of the position of clear indication writing on the blackboard, especially indicates the writing on the blackboard of eminence.Shen Asked someone upper class hour, teacher is often using the instrument of the simple functions such as books, waddy, but such instrument is because of its own attribute, past It is past to be used for all teachers.With the propulsion of the reform in education, with the introducing of multimedia technology, some new teaching poles Such as the use of multimedia Pen for turning page, teaching is greatly facilitated, but multimedia Pen for turning page is only used for multimedia curtain Instruction, effect is poor during for indicating the writing on the blackboard on blackboard.

Utility model content

To solve the above problems, the utility model, which provides one kind, can either be used for multimedia teaching, and can is enough traditional The teaching pole used in teaching.

The utility model, including expansion link, the expansion link include first body of rod, second body of rod and the 3rd body of rod, and first One section of internal thread is provided with the body of rod, hollow lead screw is provided with second body of rod, the outer surface of the hollow lead screw is provided with and the first bar The external screw thread that internal screw thread is worked in coordination, the inner surface of hollow lead screw are provided with internal thread, and the 3rd body of rod is interior to be provided with screw mandrel, on screw mandrel Provided with the external screw thread worked in coordination with hollow lead screw internal thread, infrared display ball is provided with the top of the 3rd body of rod, is set in first body of rod There is battery, first body of rod is externally provided with switch, and switch, battery and the infrared display ball form loop.

Innovative point of the present utility model is the concrete structure of expansion link, and expansion link is mostly directly socketed in the prior art Sleeve together, this class formation have two defects：(1) frictional force is big, stretches laborious；(2) expansion link is easily made to produce abrasion.This Utility model connects together three bodies of rod, using hollow lead screw structure, can be more prone to three the flexible of the body of rod, rub Wipe power to reduce, while the infringement to body of rod outer wall reduces.

Further, the both ends of hollow lead screw are separately fixed at the both ends of second body of rod.

Further, spring caps are provided with the top of the 3rd body of rod, the spring caps are preferably quality of rubber materials, elastic crown Portion is infrared display ball.

Further, first body of rod is provided with hand grip portion, and the hand grip portion is provided with anti-skidding grain.

Further, in order to more convenient when storing teaching pole, the expansion link is provided with link, and link, which is provided with, to be inhaled Disk.

Further, the free end of first body of rod is provided with chalk clamp structure, and concrete structure is：First body of rod Free end is hollow structure, and the outer wall of the first body of rod free end is provided with opening.

Compared with prior art, the beneficial effects of the utility model are：It is of the present utility model flexible more convenient, more save Shi Shengli, the abrasion to body of rod outer wall can be reduced, keep the attractive in appearance of teaching pole appearance, extend its useful life；Coordinate infrared aobvious Show ball, can either be applied in conventional teaching, can also apply in multimedia teaching；Held in addition, the utility model is provided with Portion, it is convenient to grasp, and can also be used in folded state as chalk chucking device, dirt of the chalk to teacher's hand can be reduced Dye.

Brief description of the drawings

Fig. 1 is the utility model receiving state figure；

Fig. 2 is that the utility model deploys use state figure；

In figure, the bodies of rod of 1- first；The bodies of rod of 2- second；The bodies of rod of 3- the 3rd；4- hollow lead screws；The infrared display balls of 5-；6- elasticity Cap；7- hand grip portions；8- screw mandrels；9- is switched.

Embodiment

The utility model is further explained below in conjunction with the accompanying drawings.

A kind of teaching pole, including expansion link, as shown in Fig. 2 the expansion link includes first body of rod 1, second body of rod 2 and the 3rd The body of rod 3, be provided with one section of internal thread in first body of rod 1, hollow lead screw 4 be provided with second body of rod 2, the both ends of hollow lead screw 4 are distinguished The both ends of second body of rod 2 are fixed on, the outer surface of the hollow lead screw 4 is outer provided with being worked in coordination with the internal thread of first body of rod 1 Screw thread, the inner surface of hollow lead screw 4 are provided with internal thread, screw mandrel 8 are provided with the 3rd body of rod 3, screw mandrel 8 is provided with and hollow lead screw 4 The external screw thread that internal thread is worked in coordination, the top of the 3rd body of rod 3 are provided with spring caps 6, are infrared display ball 5 at the top of spring caps 6, and first Battery is provided with the body of rod 1, first body of rod 1 is externally provided with switch 9, and switch 9, battery and the infrared display ball 5 form loop.First The free end of the body of rod 1 is provided with chalk clamp structure, and concrete structure is：The free end of first body of rod 1 is hollow structure, and the The outer wall of the free end of one body of rod 1 is provided with opening.

To increase the convenience used, first body of rod 1 is provided with hand grip portion 7, and the hand grip portion 7 is provided with anti-skidding grain, is More convenient when storing teaching pole, the expansion link is provided with link, link is provided with sucker.

The utility model when not in use, as shown in Figure 1；When needing to use expansion, as shown in Figure 2.

Claims

1. a kind of teaching pole, including expansion link, it is characterised in that the expansion link includes first body of rod（1）, second body of rod（2）With 3rd body of rod（3）, first body of rod（1）Inside it is provided with one section of internal thread, second body of rod（2）It is interior to be provided with hollow lead screw（4）, it is described hollow Leading screw（4）Outer surface be provided with and first body of rod（1）The external screw thread that internal thread is worked in coordination, hollow lead screw（4）Inner surface set There are internal thread, the 3rd body of rod（3）It is interior to be provided with screw mandrel（8）, screw mandrel（8）It is provided with and hollow lead screw（4）Upper internal thread is worked in coordination External screw thread, the 3rd body of rod（3）Top is provided with infrared display ball（5）, first body of rod（1）It is interior to be provided with battery, first body of rod（1）Outside Provided with switch（9）, the switch（9）, battery and infrared display ball（5）Form loop.

2. teaching pole according to claim 1, it is characterised in that hollow lead screw（4）Both ends be separately fixed at second body of rod （2）Both ends.

3. teaching pole according to claim 1, it is characterised in that the 3rd body of rod（3）Top is provided with spring caps（6）, bullet Property cap（6）Top is infrared display ball（5）.

4. teaching pole according to claim 1, it is characterised in that first body of rod（1）It is provided with hand grip portion（7）, it is described Hand grip portion（7）It is provided with anti-skidding grain.

5. teaching pole according to claim 1, it is characterised in that the expansion link is provided with link.

6. teaching pole according to claim 5, it is characterised in that the link is provided with sucker.

7. according to the teaching pole described in claim 1-6 any claims, it is characterised in that first body of rod（1）Freedom End is provided with chalk clamp structure.

8. teaching pole according to claim 7, it is characterised in that the concrete structure of the chalk clamp structure is：First bar Body（1）Free end be hollow structure, and first body of rod（1）The outer wall of free end is provided with opening.