CN210574527U - Touch reproduction rotation self-locking type braille dot matrix display device - Google Patents
Touch reproduction rotation self-locking type braille dot matrix display device Download PDFInfo
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- CN210574527U CN210574527U CN201920079106.3U CN201920079106U CN210574527U CN 210574527 U CN210574527 U CN 210574527U CN 201920079106 U CN201920079106 U CN 201920079106U CN 210574527 U CN210574527 U CN 210574527U
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- permanent magnet
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- 239000011159 matrix material Substances 0.000 title claims abstract description 19
- 230000033001 locomotion Effects 0.000 claims abstract description 17
- 239000011796 hollow space material Substances 0.000 claims abstract description 4
- 241001422033 Thestylus Species 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000011120 plywood Substances 0.000 abstract description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 1
- 206010047571 Visual impairment Diseases 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 208000029257 vision disease Diseases 0.000 description 4
- 230000004393 visual impairment Effects 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Abstract
The utility model discloses a rotatory from locking-type braille dot matrix display device is reappeared to sense of touch. The bottom plate, well plywood, touch pad and single point drive unit, the bottom plate, well plywood, the touch pad links to each other from top to bottom in proper order through the round pin axle that passes respective round pin shaft hole, the touch pad, well plywood, the bottom plate encloses into the hollow space that is used for installing the single point drive unit jointly, the single point drive unit includes the contact pilotage, the rotator, the permanent magnet, a pedestal, base center pin and base edge pin, two pins in single point drive unit bottom pass two pin holes that the bottom plate corresponds respectively and fix in the bottom plate bottom surface, its upper contact pilotage changes rotary motion into linear motion through with rotator threaded connection, and pass the protruding and the auto-lock of locating hole in order to realize the braille point of touch. The utility model has the characteristics of compact structure, auto-lock and each single-point drive unit independent control, can realize large tracts of land, intensive braille dot matrix arrangement, provide hardware support for braille and graphic touch display.
Description
Technical Field
The utility model relates to a tactile display technical field especially relates to a tactile reproduction rotation is from locking-type braille dot matrix display device.
Background
According to the global population data statistics of the World Health Organization (WHO) in 2010, about 2.85 hundred million people have visual impairment in different degrees worldwide, wherein the number of the blind people with serious visual impairment is about 3900 ten thousand, which accounts for 13.7% of the total visual impairment. China is the country with the largest population in the world and the largest number of blind people in the world. The growing population and the aging of the society are aggravated, people have a weak eye-loving and eye-protecting consciousness, professional ophthalmic medical personnel are lacked in the aspect of medical treatment, the distribution of medical resources among cities is uneven, and the like. With the development of the situation, the total number of the blind people in China will be enlarged by 4 times by 2020.
The blind can only feel external information through hearing and touch because of visual impairment. At present, the blind mainly learns by touching the Braille book with fingers, and the traditional Braille book has lag information and is not easy to carry. With the development of the times and the advancement of science and technology, in order to improve the reading and education problems of the blind, the rights of the blind are respected, and the blind is also fair and positive in society, so that a barrier-free knowledge and information reading device is urgently needed.
Researchers at home and abroad develop braille point displays in various driving forms, and partial results are converted into products facing the market, but the problems of high power consumption and the like still exist and cannot be popularized due to high price all the time. Therefore, the Braille dot matrix display device with the characteristics of self locking, relatively low cost, small volume, portability and the like is researched and developed, and the Braille dot matrix display device has very important value for the development of Braille dot displays.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the background art, the utility model provides a rotatory from locking-type braille dot matrix display device is reappeared to sense of touch, the device provides one kind and presses eight structural design of point for the party of braille, and the effect of low-power consumption is reached to the mode of screw thread auto-lock simultaneously in easy extensive assembly.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model discloses a bottom plate, well plywood, touch pad and single-point drive unit, touch pad, well plywood, bottom plate link to each other in proper order from top to bottom through the round pin axle that passes round pin shaft hole separately, and touch pad, well plywood, bottom plate enclose into inside hollow space that is used for installing single-point drive unit jointly, and single-point drive unit upper end, lower extreme stretch out touch pad, bottom plate respectively.
The single-point driving unit comprises a contact pin, a rotating body, a permanent magnet and a base, wherein the base is fixed in a base plate groove arranged on the upper end surface of the base plate, a central groove is formed in the top surface of the base, a through hole provided with a base central pin is formed in the middle of the bottom of the central groove, a circle of annular metal sheet is arranged on the top surface of the base around the central groove, and the annular metal sheet is connected with one end of a base edge pin arranged in the base around the central groove; the permanent magnet is embedded in a central groove of the base, and a core rod arranged at the lower end of the permanent magnet is inserted into a positioning hole formed at one end of a central pin of the base; the other end of the base edge pin and the other end of the base center pin penetrate through the base and the bottom plate and are connected to an external driving circuit; the square projection that the permanent magnet upper end was equipped with inserts the rotator bottom square groove that the rotator lower extreme was opened, and the rotator up end is equipped with the screw thread axle, and the cover is equipped with the screw thread axle in the cavity that the contact pilotage lower part was equipped with and links to each other through the screw thread with the screw thread axle, and the contact pilotage round axis activity of contact pilotage upper end is arranged in the square groove of touch pad.
The eight single-point driving units are distributed in a 2 x 4 array mode, namely one square in the Braille display can be combined with displays of different sizes randomly by taking the one square as a unit, and eight-point Braille touch control is formed.
The middle of the touch pad is provided with an installation through hole which is matched with contact pins of the eight single-point driving units for installation, and the installation through hole is mainly formed by butting a square groove and a positioning hole positioned on the upper end surface of the square groove; the contact pin is mainly formed by connecting a contact pin main body with a contact pin circular shaft positioned on the upper end surface of the contact pin main body; the round axis of the contact pin is in clearance fit with the positioning hole of the touch pad, and the main body of the contact pin is in clearance fit with the square groove to limit the circumferential rotation motion of the contact pin.
The bottom surface of the bottom plate groove is provided with edge pin holes and center pin holes corresponding to the eight single-point driving units, and each bottom plate center pin hole and the positioning hole of the touch plate are located on the same axis.
The lower ends of the base edge pin and the base center pin of each single-point driving unit respectively penetrate out of the lower bottom surface of the bottom plate through the edge pin hole and the center pin hole of the bottom plate.
The permanent magnet is electrically conductive.
The touch driving units are all connected with the control circuit board, the control circuit board controls current to flow in from the edge pins of the base and flow out from the center pins of the base through the permanent magnets, namely the current flows in from the center of the permanent magnets and flows out along each radial direction of the permanent magnets, or controls current to flow in from the center pins of the base and flow out from the edge pins of the base through the permanent magnets, namely the current flows in from the outer rings of the edges of the lower end faces of the permanent magnets and then flows out along. The current is vertical to the inherent axial magnetic field in the permanent magnet, so that the edges of the permanent magnet generate tangential ampere force, the permanent magnet is driven to rotate axially, and the rotating body is driven to rotate.
The contact pin is in threaded fit with the rotating body, the rotating motion of the rotating body is converted into the vertical linear motion of the contact pin, a thread self-locking structure is adopted between the thread shaft and the internal thread of the contact pin, and the contact pin has a thread self-locking characteristic.
The contact pin main part up end supports the square groove top surface and restricts the last spacing of contact pin rectilinear motion, and contact pin main part down terminal surface supports the lower spacing that the rotator up end restricted contact pin rectilinear motion.
The beneficial effects of the utility model are mainly embodied in that:
(1) the utility model discloses a screw thread auto-lock structure has increased reliability and stability of mechanical work time, has guaranteed the protruding high uniformity of braille point, the reduction the consumption of very big degree, and can realize large tracts of land, intensive braille dot matrix arrangement, provide hardware support for braille and graphic touch display.
(2) The utility model discloses single-point drive unit has been designed according to ampere force generation principle, can drive the up-and-down motion of a braille contact. The single-point driving unit has the characteristics of simple mechanism, small volume, high response speed and the like.
Drawings
Fig. 1 is an overall appearance diagram of the device structure of the present invention.
Fig. 2 is an internal assembly view of the device structure of the present invention.
Fig. 3 is a sectional view of the structure of the device of the present invention.
Fig. 4 is a schematic structural diagram of a single-point driving unit of the present invention.
Fig. 5 is a schematic diagram of the structure of the center pin and the edge pin of the base according to the present invention.
Fig. 6 is a schematic view of the structure of the contact pin of the present invention.
Fig. 7 is a schematic view of the structure of the rotating body of the present invention.
Fig. 8 is a schematic view of the bottom plate structure of the present invention.
Fig. 9 is a schematic diagram of a touch panel structure according to the present invention.
In the figure: the touch panel 10, the middle layer board 20, the bottom plate 30, the single point drive unit 40, the stylus 50, the rotator 60, the permanent magnet 70, the base 80, the base edge pin 90, the base center pin 100, the touch panel lower end surface 101, the positioning hole 102, the square groove top surface 103, the touch panel pin hole 104, the square groove 105, the bottom plate upper end surface 301, the bottom plate groove 302, the bottom plate pin hole 303, the bottom plate center pin 304, the bottom plate edge pin 305, the stylus round shaft 501, the stylus body upper end surface 502, the stylus body 503, the stylus internal thread 504, the stylus body lower end surface 505, the screw shaft 601, the rotator upper end surface 602, and the rotator bottom square groove 603.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the utility model discloses a bottom plate 30, middle level board 20 and touch pad 10, middle level board 20, bottom plate 30 from top to bottom link to each other in proper order through the round pin axle, and the round pin axle passes touch pad round pin shaft hole 104, middle level board round pin shaft hole, bottom plate round pin shaft hole 303 in proper order, and terminal surface 101, middle level board 20 and bottom plate up end 301 enclose into the hollow space that is used for installing single-point drive unit 40 of inside jointly under the touch pad.
As shown in fig. 2, the present invention further includes eight single-point driving units 40, wherein the eight single-point driving units 40 are distributed in a 2 x 4 array, i.e. one "square" in the braille display can be combined with displays of different sizes at will by using one "square" as a unit to form eight-point braille touch control. The eight single-point driving units 40 extend out of the touch panel 10 and the bottom plate 30 at the upper and lower ends thereof, respectively.
As shown in fig. 4 and 7, the single point driving unit 40 includes a stylus 50, a rotator 60, a permanent magnet 70, and a base 80, the base 80 is fixed in a bottom plate groove 302 formed on an upper end surface of a bottom plate 30, a central groove is formed on a top surface of the base 80, a square protrusion formed on an upper end of the permanent magnet 70 is inserted into a rotator bottom square groove 603 formed on a lower end of the rotator 60, a threaded shaft 601 is formed on an upper end surface of the rotator 60, a threaded shaft 601 is sleeved in a cavity formed on a lower portion of the stylus 50 and is connected with the threaded shaft 601 through a thread, and a round shaft 501 on an upper end of the stylus 50 is movably disposed.
As shown in fig. 3 and 5, a central groove is formed on the top surface of the base 80, a through hole provided with a base central pin 100 is formed in the middle of the bottom of the central groove, a ring of annular metal sheet is arranged on the top surface of the base 80 around the central groove, and the annular metal sheet is connected with one end of a base edge pin 90 arranged in the base 80 around the central groove; the permanent magnet 70 is embedded in a central groove of the base 80, and a core rod arranged at the lower end of the permanent magnet 70 is inserted into a positioning hole formed at one end of a central pin 100 of the base; the other end of base edge pin 90 and the other end of base center pin 100 both pass through base 80 and bottom plate 30 and are connected to external drive circuitry.
As shown in fig. 6, the stylus 50 is mainly composed of a stylus body 503 and a stylus round shaft 501 located on the upper end surface of the stylus body 503; the stylus round shaft 501 is fitted with a clearance fit with the positioning hole of the touch panel, and the stylus body 503 is fitted with a clearance fit with the square groove 105 to restrict the circumferential rotational movement of the stylus 50.
As shown in fig. 5 and 6, the upper end surface 502 of the contact body abuts against the top surface 103 of the square groove to limit the upper limit of the linear movement of the contact pin 50, and the lower end surface 505 of the contact body abuts against the upper end surface 602 of the rotating body to limit the lower limit of the linear movement of the contact pin 50.
As shown in fig. 8, the bottom surface of the bottom plate groove 302 is provided with edge pin holes 305 and center pin holes 304 corresponding to eight single-point drive units 40, and each bottom plate center pin hole 304 is located at the same axis as the positioning hole 102 of the touch pad. The lower ends of the base edge pin 90 and the base center pin 100 of each single-point driving unit 40 respectively pass through the edge pin hole 305 and the center pin hole 304 of the bottom plate 30 and then pass out of the bottom surface of the bottom plate 30.
As shown in fig. 9, the middle of the touch panel is provided with a mounting through hole for fitting the contact pins 50 of the eight single-point drive units 40, and the mounting through hole is mainly formed by butting a square groove 105 and a positioning hole 102 located on the upper end face of the square groove 105.
In specific implementation, the single-side braille structure comprises eight braille points, namely a square point, which are formed by eight single-point driving units distributed in 2 x 4, when the single-point driving unit 40 is located at a working position, the braille points are convex, when the single-point driving unit 40 is located at a non-working position, the braille points are concave, and braille characters can be arranged by controlling the concave-convex of each point. By controlling the directions of current flow into and out of base center pin 100 and base edge pin 90, opposite ampere forces can be generated, and the permanent magnet 70 can be positively and negatively rotated, so that the stylus 50 can be moved up and down.
The specific embodiment is as follows:
taking one of the single-point driving units 40 as an example, when current flows in from the base center pin 100 and flows out from the base edge pin 90 through the conduction of the permanent magnet 70, because the upper end of the permanent magnet 70 is the N pole and the lower end is the S pole, the direction of the magnetic induction line inside the permanent magnet 70 is vertical and upward, as can be seen according to left-hand rules, the edge point of the lower end face of the permanent magnet 70 is subjected to tangential ampere force, and the permanent magnet 70 is wholly subjected to clockwise ampere force (from top to bottom overlooking view angle), the permanent magnet 70 is driven to rotate in the clockwise direction, so that the rotator 60 is driven to rotate in the clockwise direction, because the threaded shaft 601 of the rotator 60 adopts right-handed threads, the rotation of the threaded shaft 601 drives the stylus 50 to move upward, and when the upper end face 502 of the stylus contacts with the top surface 103 of the square. Similarly, when current flows in from the base edge pin 90 and flows out from the base center pin 100 through the permanent magnet 70, the permanent magnet 70 receives an ampere force in the counterclockwise direction, and the contact pin 50 moves downward, and reaches a stroke lower limit, i.e., a concave state, when the contact pin lower end surface 505 contacts with the rotating body upper end surface 602. This is a complete operating cycle of one braille dot, and as shown in fig. 3, the single-dot driving units 40 of left 1 and left 3 indicate an operating state of the single-dot driving unit 40, and the single-dot driving units 40 of left 2 and left 4 indicate a non-operating state of the single-dot driving unit 40.
Therefore, the utility model discloses can realize the up-and-down motion of braille point and have self-locking function, the consumption that significantly reduces can realize large tracts of land, intensive braille dot matrix and arrange, provides hardware support for braille and graphic touch display.
Claims (9)
1. A touch reproduction rotation self-locking Braille dot matrix display device is characterized in that: the touch pad comprises a bottom plate (30), a middle layer plate (20), a touch pad (10) and a single-point driving unit (40), wherein the touch pad (10), the middle layer plate (20) and the bottom plate (30) are sequentially connected from top to bottom through pin shafts penetrating through respective pin shaft holes, the touch pad (10), the middle layer plate (20) and the bottom plate (30) jointly enclose a hollow space for installing the single-point driving unit (40), and the upper end and the lower end of the single-point driving unit (40) respectively extend out of the touch pad (10) and the bottom plate (30);
the single-point driving unit (40) comprises a contact pin (50), a rotating body (60), a permanent magnet (70) and a base (80), the base (80) is fixed in a base plate groove (302) formed in the upper end surface of a base plate (30), a central groove is formed in the top surface of the base (80), a through hole provided with a base central pin (100) is formed in the middle of the bottom of the central groove, a circle of annular metal sheet is arranged on the top surface of the base (80) around the central groove, and the annular metal sheet is connected with one end of a base edge pin (90) arranged in the base (80) around the central groove; the permanent magnet (70) is embedded in a central groove of the base (80), and a core rod arranged at the lower end of the permanent magnet (70) is inserted into a positioning hole formed at one end of a central pin (100) of the base; the other end of the base edge pin (90) and the other end of the base center pin (100) penetrate through the base (80) and the bottom plate (30) and are connected to an external driving circuit; the square bump arranged at the upper end of the permanent magnet (70) is inserted into a square groove (603) at the bottom of the rotator (60) and formed at the lower end of the rotator, a threaded shaft (601) is arranged on the upper end face of the rotator (60), the threaded shaft (601) is sleeved in a cavity arranged at the lower part of the contact pin (50) and is connected with the threaded shaft (601) through threads, and a round contact pin shaft (501) at the upper end of the contact pin (50) is movably arranged in the square groove of the touch pad (10).
2. A rotary self-locking braille dot matrix display device of tactile representation according to claim 1, characterized in that: the eight single-point driving units (40) are distributed in a 2-4 array to form eight-point Braille touch control.
3. A rotary self-locking braille dot matrix display device of tactile representation according to claim 2, characterized in that: the middle of the touch pad is provided with an installation through hole which is matched with the contact pins (50) of the eight single-point driving units (40) for installation, and the installation through hole is mainly formed by butting a square groove (105) and a positioning hole which is positioned on the upper end surface of the square groove (105); the contact pin (50) is mainly formed by connecting a contact pin body (503) and a contact pin round shaft (501) positioned on the upper end face of the contact pin body (503); the round stylus shaft (501) is in clearance fit with the positioning hole of the touch pad, and the main stylus body (503) is in clearance fit with the square groove (105) to limit the circumferential rotation motion of the stylus (50).
4. A rotary self-locking braille dot matrix display device of tactile representation according to claim 2, characterized in that: the bottom surface of the groove of the bottom plate (30) is provided with edge pin holes (305) and center pin holes (304) corresponding to the eight single-point drive units (40), and each bottom plate center pin hole (304) and the positioning hole (102) of the touch pad are positioned on the same axis.
5. The rotary self-locking braille dot matrix display device of claim 4, characterized in that: the lower ends of the base edge pin (90) and the base center pin (100) of each single-point driving unit (40) respectively penetrate out of the lower bottom surface of the bottom plate (30) through the edge pin hole (305) and the center pin hole (304) of the bottom plate (30).
6. A rotary self-locking braille dot matrix display device of tactile representation according to claim 1, characterized in that: the permanent magnet (70) is electrically conductive.
7. A rotary self-locking braille dot matrix display device of tactile representation according to claim 1, characterized in that: the single-point driving units (40) are connected with a control circuit board, the control circuit board controls current to flow into the base from the base edge pin (90) and flow out of the base center pin (100) through the permanent magnet (70), or controls current to flow into the base from the base center pin (100) and flow out of the base edge pin (90) through the permanent magnet (70), the current and an inherent axial magnetic field in the permanent magnet (70) are perpendicular to each other, tangential ampere force is generated on the edge of the permanent magnet (70), the permanent magnet (70) is driven to rotate axially, and therefore the rotating body (60) is driven to rotate.
8. A rotary self-locking type braille dot matrix display device of tactile representation according to claim 7, characterized in that: the contact pin (50) is in threaded fit with the rotating body (60), so that the rotating motion of the rotating body (60) is converted into the vertical linear motion of the contact pin (50), and a thread self-locking structure is adopted between the threaded shaft (601) and the internal thread (504) of the contact pin.
9. A rotary self-locking braille dot matrix display device of tactile representation according to claim 3, characterized in that: the upper end face of the contact pin main body (503) is abutted against the top face (103) of the square groove to limit the upper limit of the linear motion of the contact pin (50), and the lower end face of the contact pin main body (503) is abutted against the upper end face (602) of the rotating body to limit the lower limit of the linear motion of the contact pin (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920079106.3U CN210574527U (en) | 2019-01-17 | 2019-01-17 | Touch reproduction rotation self-locking type braille dot matrix display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920079106.3U CN210574527U (en) | 2019-01-17 | 2019-01-17 | Touch reproduction rotation self-locking type braille dot matrix display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210574527U true CN210574527U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920079106.3U Withdrawn - After Issue CN210574527U (en) | 2019-01-17 | 2019-01-17 | Touch reproduction rotation self-locking type braille dot matrix display device |
Country Status (1)
| Country | Link |
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| CN (1) | CN210574527U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110033674A (en) * | 2019-01-17 | 2019-07-19 | 浙江理工大学 | Tactile sense reproduction rotary self-locking formula braille dot matrix display device |
| CN116719443A (en) * | 2023-08-02 | 2023-09-08 | 中清思源科技(北京)有限公司 | Touch display device |
-
2019
- 2019-01-17 CN CN201920079106.3U patent/CN210574527U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110033674A (en) * | 2019-01-17 | 2019-07-19 | 浙江理工大学 | Tactile sense reproduction rotary self-locking formula braille dot matrix display device |
| CN110033674B (en) * | 2019-01-17 | 2024-02-23 | 浙江理工大学 | Touch sense reproduction rotary self-locking braille lattice display device |
| CN116719443A (en) * | 2023-08-02 | 2023-09-08 | 中清思源科技(北京)有限公司 | Touch display device |
| CN116719443B (en) * | 2023-08-02 | 2023-10-27 | 中清思源科技(北京)有限公司 | Touch display device |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200519 Effective date of abandoning: 20240223 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200519 Effective date of abandoning: 20240223 |