CN111305100B - Flexible plate for deceleration - Google Patents
Flexible plate for deceleration Download PDFInfo
- Publication number
- CN111305100B CN111305100B CN202010194019.XA CN202010194019A CN111305100B CN 111305100 B CN111305100 B CN 111305100B CN 202010194019 A CN202010194019 A CN 202010194019A CN 111305100 B CN111305100 B CN 111305100B
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- Prior art keywords
- plate
- flexible
- holes
- bolt holes
- sides
- 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.)
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- 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
- 230000009467 reduction Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000035939 shock Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 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
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002952 polymeric resin Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 208000003107 Premature Rupture Fetal 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
- 230000002411 adverse Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method 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
- 239000004033 plastic Substances 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004064 recycling Methods 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
- 239000002699 waste material Substances 0.000 description 1
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
Landscapes
- 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 gradient, 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 surface of the flexible speed plate is provided with a plurality of honeycomb holes, the honeycomb holes are paved with the maximum thickness 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 aperture of the honeycomb holes is 10-50 mm, the interval between the honeycomb holes is 0.5-1.5 times of the aperture of the honeycomb holes, and the honeycomb holes are uniformly distributed on the bottom surface of the flexible speed plate in a straight line, oblique line or geometric figure shape. It is suitable for roads 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 flexible plate for decelerating. In some special road sections, such as gates of schools, hospitals and the like, such as villages, toll booths and continuous curve or downhill road sections, forced deceleration strips are arranged on the road sections to maximally ensure the safe running of motor vehicles and the safety of pedestrians, so that the purpose of forcing the drivers of the motor vehicles to decelerate and slowly run is achieved, and the purpose of ensuring the safe passing of the motor vehicles is achieved.
Background
The deceleration strip in the prior art is a hard car arrester, and the function of the deceleration strip does not achieve the effect of deceleration. Because of the radian and the width of the deceleration strip, the passing vehicle can only drive at a speed of 0.5 km/h without causing rigid bump. Otherwise, the driver and the passenger passing through the deceleration strip feel uncomfortable, and especially when the old, the patient, the pregnant woman and the child are carried on the vehicle, the body is likely to be damaged, so that the driver and the passenger are very humanized; in addition, irreversible damage can be caused to a motor vehicle suspension system by frequent passing through the deceleration strip; meanwhile, the current deceleration strip does not consider the dimensions of buses, trucks and slow-running vehicles, and all vehicles suffer jolting as usual.
The existing speed reduction resistor has the following defects:
1. on domestic roads, rubber and concrete entity deceleration strips are most common, the rubber deceleration strips are newly produced rubber products, recycling is avoided, pollution is generated in the production process, and water resources are wasted in the vulcanizing and cooling processes (90% of enterprises use disposable water for cooling). Domestic rubber deceleration strip manufacturing is easy to pollute air. During use, the pungent odor is released.
2. The cement deceleration strip has no uniform system, the chassis is easy to be bumped by the too high slope, and the deceleration effect is poor if the slope is too low. Poor shock resistance, and the automobile can be jolted strongly through the cement deceleration strip.
3. The domestic deceleration strip has little deceleration effect on the high-grade vehicle; the low-grade vehicle needs to step on the brake, which wastes energy. The road section is provided with four or five deceleration strips, so that great inconvenience is caused, great damage is caused to the vehicle, inconvenience is brought to drivers and passengers, and the safety of the road section is further reduced due to unscientific arrangement.
4. The structural design of the speed reducing belt is unreasonable. The purpose of the deceleration strip design is to make the vehicle slow down, improve the security, but the length of domestic deceleration strip is about 35cm, and the height is 30-100mm, does not have the buffer area. Firstly, the design is easy to damage the vehicle, a light person hurts the shock-absorbing spring, and a heavy person can hang up the oil pan. Secondly, the tire is the only part on the automobile which is in direct contact with the ground, so that the width of the deceleration strip structure can form a pressure on the side face of the tire to cause the stress of the tire wall, however, the tire wall is the weakest part in the tire, and the deceleration strip can cause the conditions of tire bulge and the like. And the tire itself does not have too much shock absorbing capacity, most of shock can be absorbed by the suspension, so that the domestic deceleration strip can bring a certain degree of loss to each suspended component, the daily accumulation and the daily accumulation are realized, and the suspension durability can be greatly influenced.
5. When a vehicle passes through a deceleration strip, abnormal noise is often generated.
6. The domestic deceleration strip has low bearing and poor anti-collision performance, is easy to deform and damage after long-term use, needs to be replaced regularly, and has high replacement cost.
7. The speed reducing belt is high and narrow, has no buffer zone, is easy to cause relatively severe vibration, forms severe bumpy feeling for passengers, is easy to cause adverse effects on the old, infants and pregnant women, and is especially easy to induce premature rupture of fetal membranes and the like for pregnant women in late pregnancy.
Disclosure of Invention
The invention aims to overcome the defects that the existing hard car stopper causes hard jolt to a car and causes uncomfortable feeling to drivers and passengers, and provides a flexible plate for decelerating.
In order to accomplish the object of the present application, the present application adopts the following technical scheme:
the invention relates to a flexible plate for deceleration, 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 a slope of 0.1-0.13 gradient, each 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 surface of the flexible speed plate is provided with a plurality of honeycomb holes, the honeycomb holes are fully 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 aperture of the honeycomb holes is 10-50 mm, the spacing between the honeycomb holes is 0.5-1.5 times of the aperture of the honeycomb holes, and the honeycomb holes are uniformly distributed on the bottom surface of the flexible speed plate in a straight line, oblique line or geometric figure shape.
The invention relates to a flexible plate for deceleration, wherein: the minimum distance between the honeycomb holes and the bolt holes on the flexible plate or the boundaries of the honeycomb holes which are not opened on the flexible plate is 0.5-1.5 times of the aperture of the honeycomb holes.
The invention relates to a flexible plate for deceleration, wherein: the rectangular rubber plate is manufactured by one-time injection molding of waste tires.
The invention relates to a flexible plate for deceleration, wherein: the surface of the flexible plate is coated with a silica gel layer with the thickness of 0.5-2 mm.
The invention relates to a flexible plate for deceleration, wherein: and a washboard type streamline pattern is pressed on the silica gel layer.
The invention relates to a flexible plate for deceleration, wherein: the flexible speed plate is composed of four rectangular side plates, two side plates are arranged in the length direction and the width direction of the flexible speed plate, two adjacent sides of each side plate are provided with slopes with 0.1-0.13 slope, a row of bolt holes are formed in the two sides with the slopes, the other two sides are perpendicular to the bottom surface of the side plate, a row of bolt holes are formed in at least one side of the other two sides, and the bolts are arranged in the bolt holes and are used for fixing each side plate on the ground.
The invention relates to a flexible plate for deceleration, wherein: the flexible board further includes: the two middle plates are arranged in the middle of four side plates along the length direction of the flexible speed plate, one side of each middle plate is provided with a slope with 0.1-0.13 slope, one side with the slope is provided with a row of bolt holes, the other three sides are perpendicular 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 the bolts are arranged in the bolt holes and are used for fixing each middle plate on the ground.
The invention relates to a flexible plate for deceleration, wherein: the flexible board further includes: four intermediate plates, four intermediate plates are installed in the middle of four side plates along the length direction of the flexible speed plate, one side of each intermediate plate is provided with a slope with 0.1-0.13 slope, one side with the slope is provided with a row of bolt holes, the other three sides are perpendicular 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 installed in the bolt holes and used for fixing each intermediate plate on the ground.
According to the characteristic that the motor vehicle passes through the road section provided with the speed reducing zone and needs to pass through in a speed reducing mode, the gradient, radian, length and width of the flexible speed plate are specially designed through professional calculation, so that the motor vehicle does not have unsuitable bumpy feeling when passing through at a specified speed per hour. The design refers to the approved and mature practical products of French and European transportation departments, and traffic facilities created by middle-law traffic designers are redesigned according to the current situation of China roads and application scenes.
Compared with the existing speed reducing belt, the flexible plate for speed reduction has the following advantages:
1. laboratory certification approved by the french institutional and urban regulations, traffic, network research center (CERTU requirement for acquisition of the french certification committee (COFRAC).
2. The safety of the ultraviolet-proof fluorescent polymer resin strip is greatly improved by ultraviolet-proof treatment and the fluorescent polymer resin strip.
3. Is suitable for roads with speed limit of 30 km/h or 40 km/h.
The flexible plate can achieve the effect of decelerating the motor vehicle, and the special specification and the trapezoid structure of the flexible plate enable buses, motorcycles and bicycles to pass through smoothly.
5. The noise of the flexible plate is also one of the smallest in the reduction plates on the market.
6. The installation only needs 1 hour, and the flexible plate is fixed through the wing-shaped nylon screw and the threaded spike, and the movement is also very convenient.
7. The flexible plate material is sulfur rubber, mainly reclaimed rubber or plastic, and the bearing capacity can reach 40 tons.
8. Can be used in no matter how severe it is in 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 plate is not less than 200 percent, and the elongation at break of the surface material of the rubber speed reduction plate used on roads and urban roads is not less than 250 percent.
10. 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 reduction plate used on roads and urban roads is not less than 8.5MPa.
11. Shore a hardness: the tearing strength of the surface material of the flexible plate should not be less than 20KN/m.
12. Abrasion loss: the abrasion loss of the surface material of the flexible plate is not more than 0.8cm 3 /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 schematic plan view of a flexplate for deceleration according to the present invention;
FIG. 2 is a schematic elevation view of FIG. 1;
FIG. 3 is a schematic forward view taken from A-A of FIG. 2;
FIG. 4 is a schematic forward view taken from B-B of FIG. 2;
fig. 5 is a schematic side view of fig. 1.
In fig. 1 to 5, reference numeral 1 denotes a side plate; reference numeral 2 is an intermediate 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 fig. 1 to 5, the flexible plate for deceleration according to 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, the maximum thickness of the rectangular rubber plate is 50 to 70mm, the periphery of the flexible plate is provided with a slope of 0.1 to 0.13 slope, the back surface of the flexible plate is provided with a plurality of honeycomb holes 4, the honeycomb holes 4 are spread with the bottom surface of the flexible plate except the periphery of the flexible plate, the honeycomb holes 4 are blind holes, the height of the honeycomb holes 4 is 0.5 to 0.6 times the maximum thickness of the flexible plate, the aperture of the honeycomb holes 4 is 10 to 50mm, the interval between the honeycomb holes 4 is 0.5 to 1.5 times the aperture of the honeycomb holes 4, the minimum distance between the honeycomb holes 4 and the bolt holes 3 on the flexible plate or the flexible plate is not provided with the aperture of the honeycomb holes 4 of 0.5 to 1.5 times the minimum distance between the honeycomb holes boundary, and the honeycomb holes 4 are uniformly distributed in a straight line, oblique line or geometric pattern shape on the bottom surface of the flexible plate. 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 lines are pressed on the silica gel layer 5, and the rectangular rubber plate is manufactured by one-time injection molding of waste tires.
The flexible speed board takes 8 side boards 1 and an intermediate board 2 as an example, the flexible speed board comprises four rectangular side boards 1 and four intermediate boards 2, two side boards 1 are arranged at two ends of the flexible speed board in the length and width directions, the four intermediate boards 2 are arranged in the middle of the four side boards 1 along the length direction of the flexible speed board, adjacent two side boards 1 are provided with slopes with 0.1-0.13 slope, one row of bolt holes 3 are formed in the two sides with the slopes, the other two sides are perpendicular to the bottom surface of the side boards 1, one row of bolt holes 3 are formed in one side of the other two sides, and bolts are arranged in the bolt holes 3 and are used for fixing each side board 1 on the ground. One side of each intermediate plate 2 is provided with a slope with 0.1-0.13 gradient, one side with the slope is provided with a row of bolt holes 3, the other three sides are vertical to the bottom surface of the side plate 1, 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 are used for fixing each intermediate plate 2 on the ground.
The flexible plate for decelerating is arranged on: urban and suburban areas, residential areas, internal roads, roads or highways in service areas or rest areas, and regional roads or parking areas outside residential points specified in the traffic regulations; since buses are usually running, the speed reducing belts are not allowed to be installed, but the roads need to be decelerated; the speed per hour is limited to an area of 30 km/h, 40 km/h, the edges of an internal road or a speed limit area.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the design of the present invention.
Claims (8)
1. A flexible board for deceleration, characterized in that: 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 gradient of 0.1-0.13 gradient, each periphery of the flexible speed plate with the gradient is provided with a row of bolt holes (3), bolts are arranged in the bolt holes (3) and used for fixing the flexible speed plate on the ground, the back surface of the flexible speed plate is provided with a plurality of honeycomb holes (4), the honeycomb holes (4) are paved on the bottom surface of the flexible speed plate except the periphery of the flexible speed plate, the honeycomb holes (4) are blind holes, the height of the honeycomb holes (4) is 0.5-0.6 times of the maximum thickness of the flexible speed plate, the aperture of the honeycomb holes (4) is 10-50 mm, the spacing between the honeycomb holes (4) is 0.5-1.5 times of the aperture, and the honeycomb holes (4) are uniformly distributed in a straight line, oblique line or geometric shape on the bottom surface of the flexible speed plate.
2. A flexplate for deceleration as defined in claim 1, wherein: the minimum distance between the honeycomb holes (4) and the bolt holes (3) on the flexible plate or the boundary of the honeycomb holes (4) which are not formed in the flexible plate is 0.5-1.5 times of the aperture of the honeycomb holes (4).
3. A flexplate for deceleration as defined in claim 2, wherein: the rectangular rubber plate is manufactured by one-time injection molding of waste tires.
4. A flexplate for deceleration according to claim 3 wherein: the surface of the flexible plate is coated with a silica gel layer (5) with the thickness of 0.5-2 mm.
5. A flexplate for deceleration according to claim 4, wherein: and washboard type streamline lines are pressed on the silica gel layer (5).
6. A flexplate for deceleration according to claim 5, wherein: the flexible speed plate is composed of four rectangular side plates (1), two side plates (1) are arranged on the length direction and the width direction of the flexible speed plate, two adjacent sides of each side plate (1) are provided with slopes with 0.1-0.13 slope, a row of bolt holes (3) are formed in the two sides with the slopes, the other two sides are perpendicular to the bottom surface of the side plate (1), a row of bolt holes (3) are formed in at least one side of the other two sides, and the bolts are arranged in the bolt holes (3) and are used for fixing each side plate (1) on the ground.
7. A flexplate for deceleration according to claim 6, wherein: the flexible board further includes: two intermediate plates (2), two intermediate plates (2) are installed in the middle of four sideboards (1) along the length direction of the flexible speed plate, one side of each intermediate plate (2) is provided with a slope with 0.1-0.13 gradient, 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 sideboard (1), at least two sides of the other three sides are provided with a row of bolt holes (3), and bolts are installed in the bolt holes (3) and are used for fixing each intermediate plate (2) on the ground.
8. A flexplate for deceleration according to claim 6, wherein: the flexible board further includes: four intermediate plates (2), four intermediate plates (2) are arranged in the middle of four side plates (1) along the length direction of the flexible speed plate, one side of each intermediate plate (2) is provided with a slope with 0.1-0.13 gradient, 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 the bolts are arranged in the bolt holes (3) and are used for fixing each intermediate 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 CN111305100A (en) | 2020-06-19 |
| CN111305100B true CN111305100B (en) | 2024-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010194019.XA Active CN111305100B (en) | 2020-03-19 | 2020-03-19 | Flexible plate for deceleration |
Country Status (1)
| Country | Link |
|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111305100A (en) | 2020-06-19 |
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