CN206097578U

CN206097578U - Telescopic pointer

Info

Publication number: CN206097578U
Application number: CN201620730537.8U
Authority: CN
Inventors: 张晓宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-07-12
Filing date: 2016-07-12
Publication date: 2017-04-12
Anticipated expiration: 2026-07-12

Abstract

The utility model discloses a telescopic pointer, including inside hollow dead lever, the inside of dead lever is provided with the hollow telescopic link, the fixed slider in bottom of telescopic link, the inner wall sliding connection of slider and dead lever, the inner wall bottom of dead lever still is equipped with interconnect's motor and dwang, the dwang is vertical upwards to pass the inside of stretching into the telescopic link behind the slider, and dwang and slider threaded connection, and still be equipped with on the lateral surface of dead lever and stretch out button and withdrawal button, it is connected with the motor with the withdrawal button to stretch out the button, and be used for the corotation and the reversal of control motor respectively. The utility model discloses a press and stretch out button or withdrawal button, control motor corotation or reversal to drive dwang forward or reverse rotation, make slider and telescopic link upwards stretch out or retract downwards, thus effective length that can the freedom adjustment teacher's pointer, its not only compact structure and also use simply convenient more.

Description

A kind of Telescopic pointer

Technical field

This utility model is related to teaching aid technical field, more particularly to a kind of Telescopic pointer.

Background technology

At present, all than larger, especially lecture theater uses that double-deck blackboard to the blackboard of school, if using fixing The teacher's pointer of length, it is just not very convenient.

Utility model content

This utility model mainly solves the technical problem in the presence of prior art, freely can stretch so as to provide one kind Contracting, Telescopic pointer easy to use.

What above-mentioned technical problem of the present utility model was mainly addressed by following technical proposals：

The Telescopic pointer that this utility model is provided, including the fix bar of inner hollow, the inside of the fix bar are arranged A slide block is fixed in the bottom for having hollow expansion link, the expansion link, and the slide block is slidably connected with the inwall of the fix bar, The inwall bottom of the fix bar is additionally provided with the motor and rotating bar being connected with each other, and the rotating bar passes through the cunning straight up The inside of the expansion link is extend into after block, and the rotating bar is threadedly coupled with the slide block, and the fix bar is outer It is additionally provided with side and stretches out button and retract button, button and the retract button of stretching out is connected with the motor, and respectively For controlling rotating and reverse for the motor.

Further, the upper and lower both sides in the inside of the fix bar further respectively have upper limit block arc and lower limiting board, The upper limit block arc and lower limiting board be respectively used to the expansion link move up and move down carry out it is spacing.

Further, the bottom of the motor is provided with battery case, is provided with battery in the battery case.

Further, the bottom outside of the fix bar is additionally provided with grip sleeve, and the grip sleeve is provided with matrix gripping surface.

Further, graininess is provided with the matrix gripping surface raised.

Further, the fix bar and expansion link are made using working of plastics.

The beneficial effects of the utility model are：Button or retract button are stretched out by pressing, controlled motor is rotated forward or anti- Turn, so as to drive rotating bar to rotate forward or backwards, slide block and expansion link is protruded upward or is retracted downwards, so as to free tune The effective length of whole teacher's pointer, its not only compact conformation but also using convenient simple.

Description of the drawings

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work Under, can be with according to these other accompanying drawings of accompanying drawings acquisition.

Fig. 1 is the structural representation of Telescopic pointer of the present utility model.

In figure:1- fix bars, 2- expansion links, 3- slide blocks, 4- motors, 5- rotating bars, 6- stretch out button, 7- retract buttons, 8- upper limit block arcs, 9- lower limiting boards, 10- battery cases, 11- batteries, 12- grip sleeves, 13- matrix gripping surfaces, 14- granules Shape is raised.

Specific embodiment

Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model Can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to make to protection domain of the present utility model Define.

Refering to shown in Fig. 1, Telescopic pointer of the present utility model, including the fix bar 1 of inner hollow, fix bar 1 it is interior Portion is provided with hollow expansion link 2, and a slide block 3 is fixed in the bottom of expansion link 2, and slide block 3 is slidably connected with the inwall of fix bar 1, The inwall bottom of fix bar 1 is additionally provided with the motor 4 and rotating bar 5 being connected with each other, and rotating bar 5 is stretched through after slide block 3 straight up Enter the inside to expansion link 2, and rotating bar 5 be threadedly coupled with slide block 3, and be additionally provided with the lateral surface of fix bar 1 stretch out by Button 6 and retract button 7, stretch out button 6 and retract button 7 is connected with motor 4, and be respectively used to controlled motor 4 rotating forward and Reversion.

This utility model stretches out button 6 or retract button 7 by pressing, 4 forward or reverse of controlled motor, turns so as to drive Lever 5 rotates forward or backwards, slide block 3 and expansion link 2 is protruded upward or is retracted downwards, so as to freely adjust having for teacher's pointer Effect length, its not only compact conformation but also using convenient simple.

Preferably, in order to avoid the expansion link 2 that the maloperation of motor 4 causes drops or collides with, the inside of fix bar 1 is upper and lower Both sides further respectively have upper limit block arc 8 and lower limiting board 9.It is right that upper limit block arc 8 and lower limiting board 9 are respectively used to Expansion link 2 move up and move down carry out it is spacing.

In this utility model, the bottom of motor 4 is provided with battery case 10, is provided with battery 11 in battery case 10.Battery 11 is main For being powered to motor 4, wherein, student can be attracted to note to install laser lamp, buzzer etc. at the top of expansion link 2 The components and parts of power, are powered to these components and parts by battery 11.

In the present embodiment, fix bar 1 is gripped for convenience, the bottom outside of fix bar 1 is additionally provided with grip sleeve 12, grip sleeve 12 are provided with matrix gripping surface 13.The hand of human body is held in matrix gripping surface 13, can increase gripping feel, slows down gripping tired Labor.And in order to further increase frictional force, prevent from skidding, in matrix gripping surface 13, it is provided with graininess projection 14.

Further, in order to lower the overall weight of teacher's pointer and the gripping labor intensity of teacher, use more comfortably, Fix bar 1 and expansion link 2 are made using working of plastics.Certainly, other light material fabrication and processing may also be employed.

More than, specific embodiment only of the present utility model, but protection domain of the present utility model is not limited thereto, Any change or replacement expected without creative work, should all cover within protection domain of the present utility model.Therefore, The protection domain that protection domain of the present utility model should be limited by claims is defined.

Claims

1. a kind of fix bar (1) of Telescopic pointer, including inner hollow, it is characterised in that：The inside of the fix bar (1) sets Hollow expansion link (2) is equipped with, a slide block (3), the slide block (3) and the fix bar are fixed in the bottom of the expansion link (2) (1) inwall is slidably connected, and the inwall bottom of the fix bar (1) is additionally provided with the motor (4) and rotating bar (5) being connected with each other, The rotating bar (5) extend into the inside of the expansion link (2), and the rotating bar straight up through after the slide block (3) (5) it is threadedly coupled with the slide block (3), and is additionally provided with the lateral surface of the fix bar (1) and stretches out button (6) and retraction is pressed Button (7), it is described to stretch out button (6) and retract button (7) is connected with the motor (4), and be respectively used to control the motor (4) rotate and reverse.

2. Telescopic pointer as claimed in claim 1, it is characterised in that：The upper and lower both sides in inside of the fix bar (1) are also divided Upper limit block arc (8) and lower limiting board (9) are not provided with, the upper limit block arc (8) and lower limiting board (9) are used respectively In to the expansion link (2) move up and move down carry out it is spacing.

3. Telescopic pointer as claimed in claim 1 or 2, it is characterised in that：The bottom of the motor (4) is provided with battery case (10), battery (11) is provided with the battery case (10).

4. Telescopic pointer as claimed in claim 3, it is characterised in that：The bottom outside of the fix bar (1) is additionally provided with holds Set (12) is held, the grip sleeve (12) is provided with matrix gripping surface (13).

5. Telescopic pointer as claimed in claim 4, it is characterised in that：Graininess is provided with the matrix gripping surface (13) convex Rise (14).

6. Telescopic pointer as claimed in claim 1, it is characterised in that：The fix bar (1) and expansion link (2) adopt plastics Part is made.