CN209312279U

CN209312279U - A kind of aobvious braille electronic reading device of point

Info

Publication number: CN209312279U
Application number: CN201821057092.7U
Authority: CN
Inventors: 刘剑夫
Original assignee: Shanghai Weiyan Education Technology Co Ltd
Current assignee: Shanghai Weiyan Education Technology Co Ltd
Priority date: 2018-07-04
Filing date: 2018-07-04
Publication date: 2019-08-27
Anticipated expiration: 2028-07-04

Abstract

The utility model discloses a kind of points to show braille electronic reading device, use for reference binary coding principle, utilize multiple power cam combinations, multiple blind aobvious points can be driven simultaneously by realizing a driving motor, other opposite driving methods, the driving method of the utility model greatly reduces the quantity of driver, reduces blind aobvious point to the rigors of driver size, and then effectively reduce the manufacturing cost of Braille display.

Description

A kind of aobvious braille electronic reading device of point

Technical field

The utility model belong to a little aobvious braille technology, more particularly to a kind of point show braille electronic reading device.

Background technique

According to related data statistics, there are 12,330,000 blind persons in China, every year newly-increased 450,000 people of blind person.All the time, blind person obtains employment Problem is difficult to solve always, and wherein cultural knowledge scarcity is a key factor for hindering blind person to enter more extensive industry.Blind person Read books tradition is by papery books for the blind, braille identification trouble, and information content is small.And Braille display on the market, price It wants more than 10,000 yuan, blind aobvious point is the basic display element of braille, and according to international standard, the point of braille is away from for 2.2-2.5mm, side It being made of away from the side for 3.5-3.8mm, braille 6 points, it is assumed that disposably 8 Chinese characters of display then need the side 2X8=16, 16X6=96 point, each point is all made of independent driving, due to the rigors of braille geometric dimension, so that so narrow sky Between drive so many blind aobvious point, be a very big problem, this is also the original for causing the price of Braille display high Cause.

Existing Braille display driving method is mainly include the following types: Piezoelectric Ceramic, memorial alloy drive on the market Dynamic, solenoid actuated, Piezoelectric Ceramic and memorial alloy driving belong to extraordinary driving method, and volume is light and handy, but involves great expense； Solenoid actuated belongs to conventional driving, but is restricted by size, complex manufacturing technology, and weight and energy consumption are higher.Above-mentioned drive Flowing mode has been all made of one-to-one independent driving method, that is, fine and close blind aobvious point, results in the difficulty of its driving very Height, eventually leading to disabled person family generally can't afford.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of points to show braille electronic reading device, is driven by changing Dynamic form reduces the geometric dimension requirement of driver, to reduce cost.

In order to solve the above-mentioned technical problem, the utility model adopts the following technical solutions:

A kind of aobvious braille electronic reading device of point, including multiple sides, each party include a pair of Mang Xian mechanism, each blind aobvious machine Structure include three coaxial arrangement cams, be divided on cam face three mandrils, be divided on mandril three blind aobvious points, And a driver to drive three cam synchronous rotaries, have corresponding concaveconvex shape with full in each cam radial direction cambered surface Be enough lower design: when driver driving cam make synchronous rotary in set angle when, the first cam act on the first mandril with Driving the first blind aobvious point is in the continuous state of 0-1-0-1-0-1-0-1, and it is second blind to drive that the second cam acts on the second mandril Aobvious point is in the continuous state of 0-0-1-1-0-0-1-1, and third cam acts on third mandril to drive the blind aobvious point of third in 0-0- The continuous state of 0-0-1-1-1-1, wherein 1 convex for representing corresponding cam moves up blind aobvious point, 0 represents the spill of corresponding cam Move down blind aobvious point.

The Mang Xian mechanism of multiple sides is arranged side by side, and is located at the driver of the Mang Xian mechanism of odd bits, cam set It is in be shifted to install above and below corresponding with the driver for the Mang Xian mechanism for being located at even bit, cam set, the Mang Xian mechanism of even bit Mang Xian mechanism from adjacent two odd bits of mandril and blind aobvious point cam set between be pierced by gap upwards, and with odd bits The mandril of Mang Xian mechanism is with blind aobvious point in corresponding parallel.The mandril bottom is pointed in triangle.

The quantity of the side is 8.

Braille electronic reading device is shown using a kind of point of the utility model, is had the advantages that several:

1, change traditional one-to-one independent driving method, weigh principle using binary digit, realize a driver Multiple blind aobvious points are driven, so that number of drives is reduced 2/3, to reduce the manufacturing cost of braille display device；

2, using cam ejection pin mechanism, so that blind aobvious point is made driver show area far from braille, is reduced by actuated by cams Requirement to driver geometric dimension, to use conventional drive element, to further reduce manufacturing cost.

3, the installation space of driver is further reduced in shifting to install with two drivers of a pair of Mang Xian mechanism.

Detailed description of the invention

The utility model is described in detail with reference to the accompanying drawings and detailed description:

Fig. 1 is that the point of the utility model shows the stereoscopic schematic diagram of braille electronic reading device.

Fig. 2 is the schematic top plan view (shifting to install) of the reading device of an embodiment of the utility model.

Fig. 3 is the schematic side view of the reading device shifted to install of the utility model.

Fig. 4 is the stereoscopic schematic diagram (shifting to install) of a side in Fig. 3.

Fig. 5 is the stereoscopic schematic diagram of a Ge Mangxian mechanism of the utility model.

Fig. 6 is the stereoscopic schematic diagram of a cam set of the utility model.

Fig. 7 a, 7b, 7c are the radial view of three cams of the same Mang Xian mechanism of the utility model respectively.

Specific embodiment

The point of the utility model shows braille electronic reading device as shown in Figure 1, including multiple sides 1, and each party 1 includes a pair Mang Xian mechanism 2, the cam set 3 constituted incorporated by reference to the cam that each Mang Xian mechanism 2 of Fig. 4-7c includes three coaxial arrangements set up separately In three mandrils 4, three blind aobvious points 5 being divided on mandril 4 and to drive three cam synchronous rotaries on cam face One driver 6, have in each cam radial direction cambered surface accordingly with the pointed concaveconvex shape being in contact of 4 bottom triangle of mandril with Meet following design: when driver 6 drives cam to make synchronous rotary in set angle, the first cam bit0 acts on the One mandril 41 is in the continuous state of 0-1-0-1-0-1-0-1 to drive the first blind aobvious point 51, and the second cam bit1 acts on second Mandril 42 is in the continuous state of 0-0-1-1-0-0-1-1 to drive the second blind aobvious point 52, and third cam bit2 acts on third top Bar 43 is in the continuous state of 0-0-0-0-1-1-1-1 to drive the blind aobvious point 53 of third, wherein 1 convex for representing corresponding cam make it is blind Aobvious point moves up, and 0 spill for representing corresponding cam moves down blind aobvious point.

The utility model weighs principle using binary digit, using position Quan Zuhe, a driver can drive three it is blind aobvious Point.And there are six blind aobvious points by a side 1, form the array of 3X2, left semi-square and right semi-square, the blind aobvious structure that there are three each semi-squares At, there are two types of states for each blind aobvious point, are equivalent to binary zero -1, pass through each cam arc as shown in Fig. 7 a, 7b, 7c Face concave-convex design, the contact action with mandril lower end, can there is 2³=8 kinds of combinations, are equivalent to 3 (bit) 2 binary numbers, Cam has different position weights.When a certain set angle of driver drives cam set (such as 0-180 °) rotation, cam set Three blind aobvious points are driven, realize above-mentioned 8 kinds of assembled states, to achieve the purpose that a driver drives eight blind aobvious points.

Cam rotates angle and the corresponding relationship of blind aobvious point is as shown in the table:

Since blind aobvious point is by actuated by cams, driver may be located remotely from blind aobvious region, to reduce to driver size Requirement, the driving motors such as miniature steering engine can be used.

There are 6 blind aobvious points in one side 1 of the aobvious braille electronic reading device of point, so one side 1 of display needs two drivers, 8 sides 1, i.e. 16 drivers are needed if showing 4 Chinese characters.Certainly, according to the size of entire reading device and primary need Chinese character quantity to be shown carrys out the quantity of corresponding selecting party 1.

Furthermore it is also possible to which the Mang Xian mechanism using multiple sides as in Figure 2-4 is arranged side by side, and it is located at the blind of odd bits The driver 6 of aobvious mechanism, cam set 3 are with the driver 6 for the Mang Xian mechanism for being located at even bit, cam set 3 in corresponding upper and lower Shift to install, the cam set 3 of the mandril 4 of the Mang Xian mechanism of even bit and Mang Xian mechanism of the blind aobvious point 5 from adjacent two odd bits it Between be pierced by gap upwards, and with the mandril 4 of the Mang Xian mechanism of odd bits with blind aobvious point 5 in corresponding parallel.It so can be further Installation space needed for reducing driver 6, so that total is more compact.

By the way that the driving method is used for single-chip microcontroller control, produces and can store the electronics that a large amount of normal persons read Book to become there is the point of many advantages, such as at low cost, compact-sized to show braille electronic reading dress by its Content Transformation at braille Set device.

But those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate this Utility model, and being not used as the restriction to the utility model, if in the spirit of the utility model, to Variation, the modification of the upper embodiment will all be fallen in the Claims scope of the utility model.

Claims

1. a kind of point shows braille electronic reading device, it is characterised in that: including multiple sides, each party includes a pair of Mang Xian mechanism, Each Mang Xian mechanism includes the cam of three coaxial arrangements, three mandrils being divided on cam face, is divided on mandril Three blind aobvious points and a driver to drive three cam synchronous rotaries have in each cam radial direction cambered surface corresponding Concaveconvex shape is to meet following design: when driver driving cam makees synchronous rotary in set angle, the effect of the first cam In the first mandril to drive the first blind aobvious point in the continuous state of 0-1-0-1-0-1-0-1, the second cam acts on the second mandril It is in the continuous state of 0-0-1-1-0-0-1-1 to drive the second blind aobvious point, third cam acts on third mandril to drive third Blind aobvious point is in the continuous state of 0-0-0-0-1-1-1-1, wherein 1 convex for representing corresponding cam moves up blind aobvious point, 0 representative pair The spill of cam is answered to move down blind aobvious point.

2. a kind of point according to claim 1 shows braille electronic reading device, it is characterised in that: multiple sides' is blind Aobvious mechanism is arranged side by side, and is located at the driver of the Mang Xian mechanism of odd bits, cam set and the Mang Xian mechanism positioned at even bit Driver, cam set are in shift to install above and below corresponding, and the mandril of the Mang Xian mechanism of even bit and blind aobvious point are odd from adjacent two It is pierced by upwards in gap between the cam set of the Mang Xian mechanism of numerical digit, and is in the mandril of the Mang Xian mechanism of odd bits and blind aobvious point It is corresponding parallel.

3. a kind of point according to claim 1 shows braille electronic reading device, it is characterised in that: the mandril bottom is in Triangle is pointed.

4. a kind of point according to claim 1 shows braille electronic reading device, it is characterised in that: the quantity of the described side is 8.