CN111218874A - Induction sounding type blind road floor tile - Google Patents
Induction sounding type blind road floor tile Download PDFInfo
- Publication number
- CN111218874A CN111218874A CN202010032281.4A CN202010032281A CN111218874A CN 111218874 A CN111218874 A CN 111218874A CN 202010032281 A CN202010032281 A CN 202010032281A CN 111218874 A CN111218874 A CN 111218874A
- Authority
- CN
- China
- Prior art keywords
- supporting seat
- uniform pressure
- groove
- telescopic sleeve
- pedal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C5/00—Pavings made of prefabricated single units
- E01C5/04—Pavings made of prefabricated single units made of bricks
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C15/00—Pavings specially adapted for footpaths, sidewalks or cycle tracks
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
- E01F9/529—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users specially adapted for signalling by sound or vibrations, e.g. rumble strips; specially adapted for enforcing reduced speed, e.g. speed bumps
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
The invention discloses an induction sounding type blind road floor tile which comprises a tile body, wherein a supporting seat is embedded in the tile body, a pedal is arranged on the supporting seat in a sealing and sliding mode, a plurality of reset springs are arranged between the pedal and the supporting seat, a groove body communicated with the supporting seat is formed in the tile body, an annular telescopic sleeve is fixedly arranged on the lower surface of the supporting seat, the annular telescopic sleeve is cylindrical, a permanent magnet plate is connected to the lower end of the annular telescopic sleeve in a sealing mode, a plurality of sounding balls are elastically connected to the inner bottom wall of the groove body through light springs, a plurality of uniform pressure grooves are symmetrically formed in the tile body, each uniform pressure groove is communicated with the groove body, and a blocking edge is arranged in each uniform pressure groove in a sealing and sliding mode. The blind sidewalk can make a sound to remind the visually impaired when the visually impaired walks, the visually impaired can be helped to determine the position of the visually impaired, and the flanges can rise and fall along with the walking of people, so that the visually impaired can be helped to judge the boundary of the blind sidewalk and the advancing direction of the road.
Description
Technical Field
The invention relates to the technical field of municipal road construction, in particular to an induction sounding type blind road floor tile.
Background
China is the country with the most blind people in the world, along with the development of economy and the construction of urbanization, the traffic trip problem of the blind people is more and more emphasized in all social circles, the construction of blind roads is more and more emphasized, and the blind roads are like static eyes of people with visual impairment, so that great convenience is brought to the trip of the people with visual impairment.
The blind road that now drops into use is mostly to have bar or circular bellied stereoplasm brick, and the sole can be because the extrusion lasts the ache when the visually impaired person walks for a long time to bring not good trip experience for the visually impaired person, in addition, under night or bad light environment, the pedestrian often can unconsciously occupy the blind road, has caused inconvenience for the action of visually impaired person, for this reason, we provide a response sound production formula blind road ceramic tile.
Disclosure of Invention
The invention aims to solve the defects that in the prior art, when a person with visual impairment walks on a blind road for a long time, the sole of a foot is very sore and pain, and when light is poor, surrounding pedestrians unconsciously occupy the blind road and inconvenience is brought to the travel of the person with visual impairment.
In order to achieve the purpose, the invention adopts the following technical scheme:
an induction sounding type sidewalk for the blind comprises a brick body, wherein a supporting seat is embedded in the brick body, a pedal is installed on the supporting seat in a sealing and sliding mode, a plurality of reset springs are arranged between the pedal and the supporting seat, a groove body communicated with the supporting seat is formed in the brick body, an annular telescopic sleeve is fixedly arranged on the lower surface of the supporting seat, and the annular telescopic sleeve is cylindrical and is connected with a permanent magnet plate at the lower end in a sealing mode;
a plurality of sounding balls are elastically connected to the inner bottom wall of the groove body through light springs, a plurality of uniform pressure grooves are symmetrically formed in the brick body, each uniform pressure groove is communicated with the groove body, and each uniform pressure groove is internally provided with a flange in a sealing sliding mode.
Preferably, the lower surface of the permanent magnet plate is provided with a hollow plate, and the permanent magnet plate, the hollow plate and the annular telescopic sleeve are all located in the groove body.
Preferably, a flexible film is hot-melted at the notch of each uniform pressure groove.
Preferably, the lower surface of the pedal is provided with a weak magnetic plate, and the magnetic poles of the permanent magnetic plate and the weak magnetic plate on the opposite side are the same.
The invention has the beneficial effects that:
1. through setting up devices such as footboard, supporting seat, annular telescope tube, permanent magnetism board, when visual disorder person trampled the footboard, the footboard can extrude the air, makes its direction that flows to the cell body to force annular telescope tube extension, permanent magnetism board to move down, thereby make the sound production ball and well hollow plate collision sound and help visual disorder person to differentiate the position, also can remind peripheral pedestrian to dodge.
2. On one hand, the hollow plate can protect the permanent magnet plate from being damaged, and on the other hand, the cavity inside the hollow plate can also play the roles of amplifying sound and increasing resonance, so that the sound emitted by collision is clearer, and the visual impairment person can easily distinguish and listen.
3. The uniform pressure groove can share the pressure of gas in the groove body when the permanent magnet plate moves downwards, and the flanges in the uniform pressure groove can help the vision-impaired people to judge the boundary of the blind road when rising, so that the vision-impaired people can avoid deviating from the road, and the vision-impaired people can judge the direction of the road through the direction of the flange at a turning or road intersection.
4. The opposite sides of the weak magnetic plate and the permanent magnetic plate repel each other, when the weak magnetic plate moves downwards along with the pedal, the repulsion force between the weak magnetic plate and the permanent magnetic plate can accelerate the downward movement speed of the permanent magnetic plate and provide an upward supporting force for the pedal, so that the 'stepping-on feeling' of a person with visual impairment during walking is reduced.
5. The notch of each uniform pressure groove is provided with a flexible film made of wear-resistant rubber, so that sundries or rainwater can be blocked outside the uniform pressure groove, and the flanges can still move up and down quickly after long-time use.
6. Through setting up the guide arm, can avoid the tensile, in-process unstability that recovers of light spring to guarantee that the sound production ball moves in vertical direction all the time, when sound production ball and cavity board forward collision, the inertial impact force of sound production ball just can be the biggest, and the impact sound is bigger promptly.
7. When the visually impaired walks on the blind road, the pedal can slightly move downwards, so that the impact force between the blind road and the human body is reduced, the comfort level of the visually impaired during walking is increased, and the aching and pain feeling of the sole of the visually impaired is relieved.
In conclusion, the blind road prompting device can make a sound to prompt a vision-impaired person when the vision-impaired person walks, help the vision-impaired person to determine the position of the vision-impaired person, and enable the flanges to rise and fall along with the walking of the person, so that the vision-impaired person is helped to judge the boundary of the blind road and the advancing direction of the road.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment 1 of an induction sounding type blind sidewalk floor tile according to the present invention;
fig. 2 is a schematic structural view illustrating a pedal of an induction sounding type blind sidewalk floor tile according to an embodiment 1 of the present invention when being stepped on;
FIG. 3 is an enlarged view of FIG. 1 at A;
FIG. 4 is an enlarged view of FIG. 2 at B;
fig. 5 is a schematic structural diagram of an embodiment 2 of an induction sounding type blind sidewalk floor tile according to the present invention.
In the figure: 1 brick body, 2 flanges, 3 return springs, 4 pedals, 5 supporting seats, 6 uniform pressure grooves, 7 permanent magnetic plates, 8 sounding balls, 9 hollow plates, 10 annular telescopic sleeves, 11 guide rods, 12 light springs and 13 weak magnetic plates.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1.
Referring to fig. 1-4, an induction sounding type blind sidewalk floor tile comprises a tile body 1, wherein a supporting seat 5 is embedded in the tile body 1, a pedal 4 is installed on the supporting seat 5 in a sealing and sliding mode, a plurality of reset springs 3 are arranged between the pedal 4 and the supporting seat 5, a groove body communicated with the supporting seat 5 is formed in the tile body 1, an annular telescopic sleeve 10 is fixedly arranged on the lower surface of the supporting seat 5, the annular telescopic sleeve 10 is cylindrical, and a permanent magnet plate 7 is connected to the lower end of the annular telescopic sleeve 10 in a sealing mode;
there are a plurality of sounding balls 8 through 12 elastic connections of light spring on the interior diapire of cell body, and the axis department of every light spring 12 all is equipped with the guide arm 11 that links to each other with the cell body, set up guide arm 11 in order to avoid light spring 12 unstability, sounding ball 8 is made for ferromagnetic metal, and a plurality of uniform pressure grooves 6 have been seted up to the symmetry in the brick body 1, and every uniform pressure groove 6 all is linked together with the cell body, and the equal sealed slip in every uniform pressure groove 6 is provided with flange 2.
In this embodiment, the lower surface of the permanent magnet plate 7 is provided with a hollow plate 9, and the permanent magnet plate 7, the hollow plate 9 and the annular telescopic sleeve 10 are all located in the groove body.
The notch of each uniform pressure groove 6 is hot-melted with a flexible film, and the flexible film is made of wear-resistant rubber and can prevent sundries or rainwater from entering the uniform pressure grooves 6.
When the device is used, when a person with visual impairment walks, the pedal 4 is pressed down, so that air between the pedal 4 and the supporting seat 5 flows into the groove, namely above the permanent magnetic plate 7, the annular telescopic sleeve 10 is forced to be elongated under the action of the air flow, the permanent magnetic plate 7 and the hollow plate 9 are quickly close to the sounding ball 8, the magnetic force applied to the sounding ball 8 is gradually increased, the sounding ball 8 quickly moves upwards and collides with the hollow plate 9 (the sounding ball 8 is made of ferromagnetic materials), and the sound generated by the collision of the sounding ball 8 and the hollow plate 9 is transmitted to the ground, so that the device can help the person with visual impairment to determine the position of the person and remind surrounding pedestrians to avoid; in addition, the hollow plate 9 can protect the permanent magnet plate 7 from being damaged on one hand, and on the other hand, the cavity inside the hollow plate can play a role in amplifying sound and increasing resonance, so that the sound generated by collision is clearer, and the visual impairment person can easily distinguish and listen;
along with the downward movement of the permanent magnet plate 7, the air in the groove body is also extruded into the uniform pressure groove 6, and the flange 2 is pushed upwards, so that the upper end of the flange extends out of the uniform pressure groove 6, and therefore, a person with visual impairment can be helped to judge the boundary of a blind road and avoid deviating from the road;
along with the walking of the person with visual impairment, the pedal 4 is reset under the action of the reset spring 3, the annular telescopic sleeve retracts, the permanent magnet plate 7 is away from the sounding ball 8 again, the sounding ball 8 falls back under the action of gravity and the light spring 12, and at the moment, the distance between the sounding ball 8 and the permanent magnet plate 7 is long, so that the sounding ball 8 is not subjected to enough magnetic field force to move upwards;
on the straight road, the flanges 2 can be arranged on two sides of the brick body 1 and are parallel to the road advancing direction, and at the turning or intersection, the flanges 2 can be arranged according to the road direction, so that the vision-impaired people can be helped to judge the road direction.
Example 2
Referring to fig. 5, the present embodiment is different from embodiment 1 in that: the lower surface of the pedal 4 is provided with a weak magnetic plate 13, and the permanent magnetic plate 7 has the same magnetic pole with the opposite side of the weak magnetic plate 13.
When the pedal 4 moves downwards, the permanent magnet plate 7 and the weak magnet plate 13 repel each other, so that the permanent magnet plate 7 can be moved faster by virtue of the repulsive force, the collision speed of the sounding ball 8 and the hollow plate 9 is increased, and a person with visual impairment can hear the sound generated by the sounding ball 8 when stepping on the pedal 4;
in addition, because the permanent magnet plate 7 can also generate an upward acting force on the weak magnet plate 13 to prevent the weak magnet plate 13 from approaching the permanent magnet plate 7, when a person with visual impairment treads the pedal 4, the pedal 4 can simultaneously receive the deformation force of the return spring 3 and the upward acting force, thereby increasing the supporting force for the human body and reducing the 'treading empty feeling' of the person with visual impairment.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. An induction sounding type blind sidewalk floor tile comprises a tile body (1), and is characterized in that a supporting seat (5) is embedded in the tile body (1), a pedal (4) is installed on the supporting seat (5) in a sealing and sliding mode, a plurality of reset springs (3) are arranged between the pedal (4) and the supporting seat (5), a groove body communicated with the supporting seat (5) is formed in the tile body (1), an annular telescopic sleeve (10) is fixedly arranged on the lower surface of the supporting seat (5), the annular telescopic sleeve (10) is cylindrical, and a permanent magnet plate (7) is connected to the lower end of the annular telescopic sleeve in a sealing mode;
a plurality of sounding balls (8) are elastically connected to the inner bottom wall of the groove body through light springs (12), a plurality of uniform pressure grooves (6) are symmetrically formed in the brick body (1), each uniform pressure groove (6) is communicated with the groove body, and each uniform pressure groove (6) is internally provided with a flange (2) in a sealing and sliding mode.
2. The induction sounding type blind sidewalk floor tile according to claim 1, wherein the lower surface of the permanent magnet plate (7) is provided with a hollow plate (9), and the permanent magnet plate (7), the hollow plate (9) and the annular telescopic sleeve (10) are all positioned in the groove body.
3. The induction sounding type blind road floor tile according to claim 1, wherein the flexible film is hot-melted at the notch of each uniform pressure groove (6).
4. The induction sounding type blind road floor tile according to claim 1, wherein the lower surface of the pedal (4) is provided with a weak magnetic plate (13), and the permanent magnetic plate (7) has the same magnetic pole with the side opposite to the weak magnetic plate (13).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010032281.4A CN111218874A (en) | 2020-01-13 | 2020-01-13 | Induction sounding type blind road floor tile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010032281.4A CN111218874A (en) | 2020-01-13 | 2020-01-13 | Induction sounding type blind road floor tile |
Publications (1)
Publication Number | Publication Date |
---|---|
CN111218874A true CN111218874A (en) | 2020-06-02 |
Family
ID=70808792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010032281.4A Withdrawn CN111218874A (en) | 2020-01-13 | 2020-01-13 | Induction sounding type blind road floor tile |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111218874A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111749154A (en) * | 2020-07-07 | 2020-10-09 | 靳祖俊 | Safety reminding device for underground parking lot outlet |
CN112114613A (en) * | 2020-09-03 | 2020-12-22 | 吴乃贺 | Volume diffusion pedal for triggering corridor voice control lamp |
Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060102816A (en) * | 2005-03-25 | 2006-09-28 | 합자회사 동일콘크리트 | A walking guide device for blind person |
CN202610681U (en) * | 2012-04-05 | 2012-12-19 | 成都鑫赏电子科技有限公司 | Blind sidewalk facilitating walking of the blind |
CN206110007U (en) * | 2016-08-26 | 2017-04-19 | 浙江方圆市政工程有限公司 | Take sound prompt device's sidewalk for visually impaired people |
CN106638228A (en) * | 2016-11-14 | 2017-05-10 | 北京交通大学 | Blind road floor tile based on voice guide |
CN206887671U (en) * | 2017-07-13 | 2018-01-16 | 山东鲁碧建材有限公司 | A kind of slag water-permeable brick combination for being used to lay sidewalk for visually impaired people |
JP2018106657A (en) * | 2016-12-26 | 2018-07-05 | 隆 高口 | Apparatus for identifying road for people with visual impairment |
CN108277718A (en) * | 2018-01-24 | 2018-07-13 | 北京铂阳顶荣光伏科技有限公司 | A kind of solar energy sidewalk for visually impaired people system for prompting and sidewalk for visually impaired people |
CN108978381A (en) * | 2018-09-19 | 2018-12-11 | 周雅婷 | Town road safeguard construction |
CN109208422A (en) * | 2018-10-30 | 2019-01-15 | 郝诗敏 | Touch type magnetic induction alarm blind road floor tile |
CN109338849A (en) * | 2018-10-31 | 2019-02-15 | 周大兆 | A kind of oscillatory type positioning blind road floor tile |
CN109440593A (en) * | 2018-10-31 | 2019-03-08 | 张登柏 | A kind of formula auxiliary positioning blind road floor tile of pneumatically ringing a bell |
CN109914194A (en) * | 2019-04-18 | 2019-06-21 | 张根民 | The blind way that road brick and road brick are laid with |
AU2017364476A1 (en) * | 2016-11-23 | 2019-07-11 | Jason Ayoub Pty Limited | Transportation pathway and method of forming same |
CN110273342A (en) * | 2019-07-09 | 2019-09-24 | 顾海明 | A kind of dot matrix blind road floor tile |
CN110306403A (en) * | 2019-07-09 | 2019-10-08 | 何佳俊 | A kind of blind road floor tile |
CN110541337A (en) * | 2019-09-29 | 2019-12-06 | 温州普锐智能科技有限公司 | safety blind road floor tile |
CN110565467A (en) * | 2019-08-27 | 2019-12-13 | 新昌县大菠萝农业发展有限公司 | Anti-occupation safety blind road floor tile |
CN110593037A (en) * | 2019-09-19 | 2019-12-20 | 温州浩僧服饰有限公司 | Walk deviation prevention blind road floor tile |
-
2020
- 2020-01-13 CN CN202010032281.4A patent/CN111218874A/en not_active Withdrawn
Patent Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060102816A (en) * | 2005-03-25 | 2006-09-28 | 합자회사 동일콘크리트 | A walking guide device for blind person |
CN202610681U (en) * | 2012-04-05 | 2012-12-19 | 成都鑫赏电子科技有限公司 | Blind sidewalk facilitating walking of the blind |
CN206110007U (en) * | 2016-08-26 | 2017-04-19 | 浙江方圆市政工程有限公司 | Take sound prompt device's sidewalk for visually impaired people |
CN106638228A (en) * | 2016-11-14 | 2017-05-10 | 北京交通大学 | Blind road floor tile based on voice guide |
AU2017364476A1 (en) * | 2016-11-23 | 2019-07-11 | Jason Ayoub Pty Limited | Transportation pathway and method of forming same |
JP2018106657A (en) * | 2016-12-26 | 2018-07-05 | 隆 高口 | Apparatus for identifying road for people with visual impairment |
CN206887671U (en) * | 2017-07-13 | 2018-01-16 | 山东鲁碧建材有限公司 | A kind of slag water-permeable brick combination for being used to lay sidewalk for visually impaired people |
CN108277718A (en) * | 2018-01-24 | 2018-07-13 | 北京铂阳顶荣光伏科技有限公司 | A kind of solar energy sidewalk for visually impaired people system for prompting and sidewalk for visually impaired people |
CN108978381A (en) * | 2018-09-19 | 2018-12-11 | 周雅婷 | Town road safeguard construction |
CN109208422A (en) * | 2018-10-30 | 2019-01-15 | 郝诗敏 | Touch type magnetic induction alarm blind road floor tile |
CN109338849A (en) * | 2018-10-31 | 2019-02-15 | 周大兆 | A kind of oscillatory type positioning blind road floor tile |
CN109440593A (en) * | 2018-10-31 | 2019-03-08 | 张登柏 | A kind of formula auxiliary positioning blind road floor tile of pneumatically ringing a bell |
CN109914194A (en) * | 2019-04-18 | 2019-06-21 | 张根民 | The blind way that road brick and road brick are laid with |
CN110273342A (en) * | 2019-07-09 | 2019-09-24 | 顾海明 | A kind of dot matrix blind road floor tile |
CN110306403A (en) * | 2019-07-09 | 2019-10-08 | 何佳俊 | A kind of blind road floor tile |
CN110565467A (en) * | 2019-08-27 | 2019-12-13 | 新昌县大菠萝农业发展有限公司 | Anti-occupation safety blind road floor tile |
CN110593037A (en) * | 2019-09-19 | 2019-12-20 | 温州浩僧服饰有限公司 | Walk deviation prevention blind road floor tile |
CN110541337A (en) * | 2019-09-29 | 2019-12-06 | 温州普锐智能科技有限公司 | safety blind road floor tile |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111749154A (en) * | 2020-07-07 | 2020-10-09 | 靳祖俊 | Safety reminding device for underground parking lot outlet |
CN112114613A (en) * | 2020-09-03 | 2020-12-22 | 吴乃贺 | Volume diffusion pedal for triggering corridor voice control lamp |
CN112114613B (en) * | 2020-09-03 | 2022-03-15 | 吴乃贺 | Volume diffusion pedal for triggering corridor voice control lamp |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111218874A (en) | Induction sounding type blind road floor tile | |
CN110565467B (en) | Anti-occupation safety blind road floor tile | |
CN109208422B (en) | Touch type magnetic induction alarm blind road floor tile | |
CN111235996A (en) | Acousto-optic auxiliary walking-out type flexible blind road brick | |
CN110541337B (en) | Safety blind road floor tile | |
CN110512481B (en) | Anti-splashing enhanced sensing type blind road floor tile | |
KR101884001B1 (en) | pedestrians and drivers attention system and its operation method | |
CN103963865A (en) | Method for judging condition of lifting telescopic type corridor cleaning robot to walk up and down stairs | |
CN111235995A (en) | Induction type blind road floor tile convenient to pass | |
CN106344357A (en) | Electronic blind guiding cart and blind guiding method | |
CN101649593A (en) | Blind-guiding tile | |
CN101627948A (en) | Magnetic path-exploring stick for blind person | |
CN107988874B (en) | Intelligent blind road with higher safety performance | |
KR101072943B1 (en) | Sight disabled stick | |
CN111719382A (en) | Blind road floor tile with vibration indication function | |
CN113026611B (en) | Self-lifting crossing-proof guardrail for sidewalk | |
JP2006063793A (en) | Barrier-free block | |
CN105133519B (en) | One-way path with deceleration mark line and construction method for same | |
CN111549616A (en) | Splash-proof music floor tile | |
KR20170071722A (en) | Crosswalk for the safety of handicapped and visually impaired | |
CN103956048A (en) | Blind person brick with road occupation prompting function | |
CN218116009U (en) | Wear-resistant and compression-resistant blind road brick | |
EP1327718A1 (en) | Road light signs | |
KR20060102816A (en) | A walking guide device for blind person | |
CN218900101U (en) | Blind crutch |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WW01 | Invention patent application withdrawn after publication | ||
WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200602 |