CN111305100A - Speed-reducing flexible plate - Google Patents
Speed-reducing flexible plate Download PDFInfo
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- CN111305100A CN111305100A CN202010194019.XA CN202010194019A CN111305100A CN 111305100 A CN111305100 A CN 111305100A CN 202010194019 A CN202010194019 A CN 202010194019A CN 111305100 A CN111305100 A CN 111305100A
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- plate
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- flexible
- honeycomb holes
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- 230000009467 reduction Effects 0.000 claims abstract description 13
- 239000011148 porous material Substances 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000741 silica gel Substances 0.000 claims description 7
- 229910002027 silica gel Inorganic materials 0.000 claims description 7
- 241000510097 Megalonaias nervosa Species 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 239000010920 waste tyre Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229920001109 fluorescent polymer Polymers 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000002952 polymeric resin Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 206010036603 Premature rupture of membranes Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The flexible speed plate for speed reduction is a rectangular rubber plate with the width of 1.6-2.2 m and the length of 3.0-5.0 m, the maximum thickness of the rectangular rubber plate is 50-70 mm, the periphery of the flexible speed plate is provided with a slope of 0.1-0.13, the periphery of the flexible speed plate with the slope is provided with a row of bolt holes, bolts are arranged in the bolt holes and used for fixing the flexible speed plate on the ground, the back of the flexible speed plate is provided with a plurality of honeycomb holes, the honeycomb holes are paved on the bottom surface of the flexible speed plate except the periphery of the flexible speed plate, the honeycomb holes are blind holes, the height of the honeycomb holes is 0.5-0.6 times of the maximum thickness of the flexible speed plate, the pore diameter of the honeycomb holes is 10-50 mm, the interval between the honeycomb holes is 0.5-1.5 times of the pore diameter of the honeycomb holes, and the honeycomb holes are uniformly distributed on the bottom surface of the flexible speed plate in a linear, oblique line or geometric figure shape. It is suitable for the road with speed limit of 30 km/h or 40 km/h.
Description
Technical Field
The invention relates to the field of road safety facilities, in particular to a speed-reducing flexible plate. In some special road sections, such as doorways of schools, hospitals and the like, such as villages, toll stations, continuous curves or downhill road sections, in order to guarantee safe driving of motor vehicles and pedestrian safety to the maximum extent, forced deceleration belts are arranged on the road sections, and the purpose of forcing the motor vehicle driver to decelerate slowly is achieved, so that the purpose of safely passing the motor vehicles is achieved.
Background
Most deceleration strips in the prior art are hard car stoppers, and the functions of the deceleration strips do not achieve the effect of deceleration. Due to the arrangement of the radian and the width of the speed bump, the vehicle can only run at a speed of 0.5 kilometer per hour, and hard bump is not caused. Otherwise, the deceleration strip is uniformly and rigidly bumpy, so that drivers and passengers who pass through the deceleration strip have extremely uncomfortable feelings, and particularly, when the old, patients, pregnant women and children are carried on the deceleration strip, the deceleration strip is likely to cause body damage and is extremely humanized; in addition, the deceleration strip can cause irreversible damage to a motor vehicle suspension system after being frequently used; meanwhile, the scales of buses, trucks and slow-moving vehicles are not considered in the conventional speed bump, so that all vehicles suffer from jolt as usual.
The existing speed reduction speed retarder has the following defects:
1. on domestic roads, rubber and concrete entity deceleration strips are the most common, the rubber deceleration strips are newly produced rubber products, the rubber deceleration strips are not recycled, the production process is polluted, and water resources are wasted in the vulcanization and cooling processes (90% of enterprises adopt disposable water for cooling). The domestic rubber deceleration strip is easy to pollute the air. During the use process, the pungent smell is released.
2. The cement deceleration strip has no uniform system, the chassis is easily damaged by the fact that the slope surface is too high, and the deceleration effect is poor if the slope surface is too low. The shock resistance is poor, and the car can have strong jolt through the cement deceleration strip.
3. The deceleration function of the domestic deceleration strip on the high-grade vehicle is very small; the low-grade vehicle is required to step on the brake, which wastes energy. Four or five deceleration strips are installed on a common road section, great inconvenience is caused, great damage is caused to a vehicle, inconvenience is brought to a driver and passengers, and safety of the road section can be further reduced due to unscientific arrangement.
4. The structural design of the speed bump is unreasonable. The deceleration strip is designed to decelerate the vehicle and improve the safety, but the domestic deceleration strip has the length of about 35cm, the height of 30-100mm and no buffer zone. Firstly, the design is easy to cause damage to the vehicle, the light person can hurt the shock absorbing spring, and the heavy person can hang the oil pan. Secondly, the tire is the only part on the car that directly contacts with the ground, and the deceleration strip structure of width can form a pressure to the side of tire like this, causes the atress of child wall, and the child wall is a weakest position in the tire again, and such deceleration strip causes the condition such as tire bulge. And thirdly, the suspension damage is caused, the tire does not have too much shock absorption capacity, most of shock can be absorbed by the suspension, so that the loss of certain degree can be brought to each suspended part by the domestic deceleration strip, and the suspension durability can be greatly influenced after long-term storage.
5. When a vehicle passes through the speed bump, abnormal noise often occurs.
6. Domestic deceleration strip bearing is low, and crashworthiness is not good, and is yielding after long-term the use, damages, needs periodic replacement, and the replacement cost is high.
7. The deceleration strip is outstanding and narrow, has no buffer zone, is easy to cause severe vibration, forms severe jolting feeling to passengers, is easy to cause adverse effects on old people, infants and pregnant women, and is especially easy to induce premature rupture of membranes in pregnant women in late pregnancy.
Disclosure of Invention
The invention aims to overcome the defects that the existing hard car arrester causes hard jolt to an automobile and causes extremely uncomfortable feeling to drivers and passengers, and provides a soft speed plate for speed reduction.
In order to achieve the purpose of the invention, the following technical scheme is adopted in the application:
a speed-reduction flexplate of the present invention, wherein: the flexible speed plate is a rectangular rubber plate with the width of 1.6-2.2 m and the length of 3.0-5.0 m, the maximum thickness of the rectangular rubber plate is 50-70 mm, the periphery of the flexible speed plate is provided with the gradient of 0.1-0.13, the periphery of the flexible speed plate with the gradient is respectively provided with a row of bolt holes, bolts are arranged in the bolt holes and used for fixing the flexible speed plate on the ground, a plurality of honeycomb holes are arranged on the back surface of the flexible speed plate, the honeycomb holes are paved with the bottom surface of the flexible speed plate except the periphery of the flexible speed plate, the honeycomb holes are blind holes, the height of the honeycomb holes is 0.5-0.6 times of the maximum thickness of the flexible speed plate, the pore diameter of the honeycomb holes is 10-50 mm, the interval between the honeycomb holes is 0.5-1.5 times of the pore diameter of the honeycomb holes, and the honeycomb holes are straight lines on the bottom surface of the flexible speed plate, oblique lines or geometric figures are uniformly distributed.
A speed-reduction flexplate of the present invention, wherein: the minimum distance between the honeycomb holes and the bolt holes on the flexible speed plate or the honeycomb hole diameter on the flexible speed plate without the honeycomb hole boundary is 0.5-1.5 times.
A speed-reduction flexplate of the present invention, wherein: the rectangular rubber plate is made by one-time injection molding of waste tires.
A speed-reduction flexplate of the present invention, wherein: the surface of the flexible speed plate is coated with a 0.5-2mm silica gel layer.
A speed-reduction flexplate of the present invention, wherein: washboard type streamline lines are pressed on the silica gel layer.
A speed-reduction flexplate of the present invention, wherein: gentle fast board comprises four rectangle sideboard, all has two sideboard on gentle fast board's length and width direction, and two adjacent limits of every sideboard have the slope of 0.1 ~ 0.13 inclination, and it has one row of bolt hole to open at above-mentioned two edges that have above-mentioned slope, and other two limits are perpendicular with the bottom surface of sideboard, and it has one row of bolt hole to open at least one edge on other two limits, and the bolt is adorned in above-mentioned bolt hole for fix subaerial with every sideboard.
A speed-reduction flexplate of the present invention, wherein: the speed-softening plate further comprises: the flexible speed plate comprises two middle plates, wherein the two middle plates are arranged among four side plates along the length direction of the flexible speed plate, one side of each middle plate is provided with a slope of 0.1-0.13, one side with the slope is provided with a row of bolt holes, the other three sides are vertical to the bottom surface of the side plate, at least two sides of the other three sides are provided with a row of bolt holes, and bolts are arranged in the bolt holes and used for fixing each middle plate on the ground.
A speed-reduction flexplate of the present invention, wherein: the speed-softening plate further comprises: the flexible speed plate comprises four middle plates, wherein the four middle plates are arranged among four side plates along the length direction of the flexible speed plate, one side of each middle plate is provided with a slope of 0.1-0.13, one side with the slope is provided with a row of bolt holes, the other three sides are vertical to the bottom surface of the side plate, at least two sides of the other three sides are provided with a row of bolt holes, and bolts are arranged in the bolt holes and used for fixing each middle plate on the ground.
According to the characteristic that the motor vehicle needs to be decelerated and passed through the section provided with the deceleration strip, the slope, the radian, the length and the width of the flexible speed plate are specially designed through professional calculation, so that the motor vehicle does not have improper bumpiness when passing at the specified speed per hour. The design refers to the approved and mature practical products of French and European traffic departments, and traffic facilities created by China traffic designers are redesigned according to the current situation of Chinese roads and application scenes.
Compared with the conventional speed bump, the speed-reducing soft plate for reducing the speed has the following advantages:
1. according to the French public construction and city regulations, transportation, network research center (CERTU requires the acquisition of approved laboratory certifications by the French Commission on accreditation (COFRAC)).
2. The safety of the fluorescent polymer resin strip is greatly improved after the ultraviolet-proof treatment and the fluorescent polymer resin strip are matched.
3. The speed limit method is suitable for roads with speed limits of 30 km/h or 40 km/h.
The 'flexible speed plate' can play a role in reducing the speed of the motor vehicle, and the special specification and the trapezoidal structure of the flexible speed plate enable the bus, the motorcycle and the bicycle to smoothly pass through the flexible speed plate.
5. The noise of the speed-reducing plate is one of the smallest speed-reducing plates in the market.
6. The installation only needs 1 hour, and gentle fast board is fixed through wing nylon screw and thread track nail, and it is also very convenient to remove.
7. The flexible and quick plate is made of sulfur rubber, mainly recycled rubber or plastic, and can bear 40 tons of load.
8. Can be used in severe cold and hot weather, and can bear the temperature range of minus 40 ℃ to minus 60 ℃.
9. Elongation at break: the elongation at break of the surface material of the flexible speed board is not less than 200%, and the elongation at break of the surface material of the rubber speed reducing board used on roads and urban roads is not less than 250%.
10. The tensile strength is that the tensile strength of the surface material of the flexible speed plate is not less than 6.OMPa, and the tensile strength of the surface material of the rubber speed reducing plate used on roads and urban roads is not less than 8.5 MPa.
11. Hardness in Share A: the tear strength of the surface material of the flexplate should not be less than 20 KN/m.
12. And (3) wear reduction: the abrasion loss of the surface material of the flexible plate is not more than 0.8cm3/1.61km
13. System reaction time coefficient: 1.07 in the dry state and 0.50 in the wet state.
Drawings
FIG. 1 is a top down view of the speed reduction flexplate of the present invention;
FIG. 2 is a bottom schematic view of FIG. 1;
FIG. 3 is a schematic view taken in elevation from A-A of FIG. 2;
FIG. 4 is a schematic view taken in elevation from B-B of FIG. 2;
fig. 5 is a side view of fig. 1.
In fig. 1 to 5, reference numeral 1 denotes a side plate; reference numeral 2 is a middle plate; reference numeral 3 is a bolt hole; reference numeral 4 is a honeycomb hole; reference numeral 5 denotes a silica gel layer.
Detailed Description
As shown in FIGS. 1 to 5, the speed-reducing soft plate of the present invention is a rectangular rubber plate having a width of 1.6 to 2.2m and a length of 3.0 to 5.0m, and has a maximum thickness of 50mm to 70mm, have the slope of 0.1 ~ 0.13 inclination around gentle fast board, it has a plurality of honeycomb holes 4 to open at the back of gentle fast board, honeycomb holes 4 have been paved with except gentle fast board bottom surface all around, honeycomb holes 4 are the blind hole, honeycomb holes 4 highly be 0.5 ~ 0.6 times gentle fast board maximum thickness, honeycomb holes 4's aperture is 10mm ~ 50mm, the interval between honeycomb holes 4 is 0.5 ~ 1.5 times honeycomb holes 4 apertures, honeycomb holes 4 is apart from gentle fast board on bolt hole 3 or gentle fast board not opened the minimum distance that has honeycomb holes border and is 0.5 ~ 1.5 times honeycomb holes 4's aperture, honeycomb holes 4 is the straight line on gentle fast board bottom surface, slash or geometric figure's shape evenly distributed. The surface of the flexible speed plate is coated with a silica gel layer 5 with the thickness of 0.5-2mm, washboard type streamline grains are pressed on the silica gel layer 5, and the rectangular rubber plate is manufactured by one-time injection molding of waste tires.
The speed-flexible plate of the invention takes 8 side plates 1 and middle plates 2 as an example, the speed-flexible plate comprises four rectangular side plates 1 and four middle plates 2, two side plates 1 are arranged at both ends of the speed-flexible plate in the length and width directions, the four middle plates 2 are arranged in the middle of the four side plates 1 along the length direction of the speed-flexible plate, two adjacent sides of each side plate 1 have gradients of 0.1-0.13, a row of bolt holes 3 are arranged on the two sides with the gradients, the other two sides are vertical to the bottom surface of the side plate 1, a row of bolt holes 3 are arranged on one side of the other two sides, and bolts are arranged in the bolt holes 3 and are used for fixing each side plate 1 on the ground. One edge of each middle plate 2 is provided with a slope of 0.1-0.13, one edge with the slope is provided with a row of bolt holes 3, the other three edges are vertical to the bottom surface of the side plate 1, two edges of the other three edges are provided with a row of bolt holes 3, and bolts are arranged in the bolt holes 3 and used for fixing each middle plate 2 on the ground.
The speed-reducing flexible plate of the invention is arranged on: the city and suburbs thereof, the internal roads, roads or highways in residential areas, service areas or rest areas, and the subarea roads or parking lots outside residential points specified in the traffic regulations; the method is characterized in that a road which is not allowed to be provided with a speed bump but needs to be decelerated is regulated because buses often pass; the speed per hour is limited to the area of 30 km/h and 40 km/h, the inner road or the edge of the speed-limited area.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (8)
1. A speed reduction plate for reducing speed, comprising: the flexible speed plate is a rectangular rubber plate with the width of 1.6-2.2 m and the length of 3.0-5.0 m, the maximum thickness of the rectangular rubber plate is 50-70 mm, the periphery of the flexible speed plate is provided with a slope of 0.1-0.13, the periphery of the flexible speed plate with the slope is respectively provided with a row of bolt holes (3), be equipped with the bolt in bolt hole (3), be used for fixing gentle fast board subaerial, it has a plurality of honeycomb holes (4) to open at the back of gentle fast board, honeycomb holes (4) have been paved with except gentle fast board bottom surface all around, honeycomb holes (4) are the blind hole, honeycomb holes (4) highly be 0.5 ~ 0.6 times gentle fast board maximum thickness, honeycomb holes's (4) aperture is 10mm ~ 50mm, the interval between honeycomb holes (4) is honeycomb holes (4) aperture of 0.5 ~ 1.5 times, honeycomb holes (4) are the straight line on gentle fast board bottom surface, slash or geometric figure's shape evenly distributed.
2. A speed reduction plate according to claim 1, wherein: the minimum distance between the honeycomb holes (4) and the bolt holes (3) on the flexible speed plate or the pore diameter of the honeycomb holes (4) on the flexible speed plate, which is not provided with the boundaries of the honeycomb holes (4), is 0.5-1.5 times.
3. A speed reduction plate according to claim 2, wherein: the rectangular rubber plate is made of waste tires through one-time injection molding.
4. A speed reduction plate according to claim 3, wherein: the surface of the flexible speed plate is coated with a 0.5-2mm silica gel layer (5).
5. A speed reduction plate according to claim 4, wherein: washboard type streamline lines are pressed on the silica gel layer (5).
6. A speed reduction plate according to claim 5, wherein: gentle fast board comprises four rectangle sideboard (1), all has two sideboard (1) in gentle fast board's length and width direction, and two adjacent limits of every sideboard (1) have the slope of 0.1 ~ 0.13 inclination, and it has one row of bolt hole (3) to open on above-mentioned two edges that have above-mentioned slope, and other two limits are perpendicular with the bottom surface of sideboard (1), and it has one row of bolt hole (3) to open on at least one edge on other two limits, and the bolt is adorned in above-mentioned bolt hole (3), is arranged in fixing subaerial every sideboard (1).
7. A speed reduction plate according to claim 6, wherein: the speed-softening plate further comprises: the flexible speed plate comprises two middle plates (2), wherein the two middle plates (2) are arranged among four side plates (1) along the length direction of the flexible speed plate, one side of each middle plate (2) is provided with a slope of 0.1-0.13, one side with the slope is provided with a row of bolt holes (3), the other three sides are perpendicular to the bottom surface of the side plate (1), at least two sides of the other three sides are provided with a row of bolt holes (3), and bolts are arranged in the bolt holes (3) and used for fixing each middle plate (2) on the ground.
8. A speed reduction plate according to claim 6, wherein: the speed-softening plate further comprises: the flexible speed plate comprises four middle plates (2), wherein the four middle plates (2) are arranged among four side plates (1) along the length direction of the flexible speed plate, one side of each middle plate (2) is provided with a slope of 0.1-0.13, one side with the slope is provided with a row of bolt holes (3), the other three sides are perpendicular to the bottom surface of the side plate (1), at least two sides of the other three sides are provided with a row of bolt holes (3), and bolts are arranged in the bolt holes (3) and used for fixing each middle plate (2) on the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010194019.XA CN111305100B (en) | 2020-03-19 | 2020-03-19 | Flexible plate for deceleration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010194019.XA CN111305100B (en) | 2020-03-19 | 2020-03-19 | Flexible plate for deceleration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111305100A true CN111305100A (en) | 2020-06-19 |
| CN111305100B CN111305100B (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010194019.XA Active CN111305100B (en) | 2020-03-19 | 2020-03-19 | Flexible plate for deceleration |
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| CN (1) | CN111305100B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030069007A (en) * | 2002-02-18 | 2003-08-25 | 이예순 | Construct car going over prevention chin |
| EP2439338A2 (en) * | 2010-10-07 | 2012-04-11 | Zign-Up ApS | Road print |
| CN106758913A (en) * | 2016-11-22 | 2017-05-31 | 长沙理工大学 | A kind of reduction apparatus for roadway |
| CN208235362U (en) * | 2018-03-20 | 2018-12-14 | 南安市明誓汽配贸易有限公司 | A kind of deceleration device for road and bridge |
| CN109736219A (en) * | 2019-02-18 | 2019-05-10 | 白烨 | Road non-motor vehicle current limliting channel-dividing device |
| CN209428988U (en) * | 2019-01-18 | 2019-09-24 | 肖倩 | A kind of traffic engineering reduction apparatus for roadway |
| CN212895987U (en) * | 2020-03-19 | 2021-04-06 | 北京佛朗斯创意咨询有限公司 | Speed-reducing flexible plate |
-
2020
- 2020-03-19 CN CN202010194019.XA patent/CN111305100B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030069007A (en) * | 2002-02-18 | 2003-08-25 | 이예순 | Construct car going over prevention chin |
| EP2439338A2 (en) * | 2010-10-07 | 2012-04-11 | Zign-Up ApS | Road print |
| CN106758913A (en) * | 2016-11-22 | 2017-05-31 | 长沙理工大学 | A kind of reduction apparatus for roadway |
| CN208235362U (en) * | 2018-03-20 | 2018-12-14 | 南安市明誓汽配贸易有限公司 | A kind of deceleration device for road and bridge |
| CN209428988U (en) * | 2019-01-18 | 2019-09-24 | 肖倩 | A kind of traffic engineering reduction apparatus for roadway |
| CN109736219A (en) * | 2019-02-18 | 2019-05-10 | 白烨 | Road non-motor vehicle current limliting channel-dividing device |
| CN212895987U (en) * | 2020-03-19 | 2021-04-06 | 北京佛朗斯创意咨询有限公司 | Speed-reducing flexible plate |
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| CN111305100B (en) | 2024-03-12 |
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