CN112832161A - Road protection fence for preventing rear-end collision - Google Patents
Road protection fence for preventing rear-end collision Download PDFInfo
- Publication number
- CN112832161A CN112832161A CN202110216259.XA CN202110216259A CN112832161A CN 112832161 A CN112832161 A CN 112832161A CN 202110216259 A CN202110216259 A CN 202110216259A CN 112832161 A CN112832161 A CN 112832161A
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- 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
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
-
- 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
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/14—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention relates to the field of municipal roads and discloses a rear-end collision prevention road protection fence which comprises a base, wherein a buffer cavity is formed in the upper end face of the base, pressure reducing plates which are symmetrical in the front and back are fixedly arranged on the two side wall faces of the buffer cavity, two guide rods which are symmetrical to each other are fixedly arranged between the pressure reducing plates, and stand columns which can extend out of the ground and move are arranged on the guide rods. The protective fence can effectively avoid the transverse impact and the straight impact of the vehicle by utilizing the rotary drum to guide the direction of the out-of-control vehicle, can reduce the speed of the accident vehicle, and reduces the damage to the vehicle and a driver.
Description
Technical Field
The invention relates to the technical field of municipal roads, in particular to a road protection fence for preventing rear-end collision.
Background
Current road protection rail is fixed mounting in the road both sides usually, only have the buffering effect of slowing down to the accident vehicle, after vehicle striking protection rail causes the traffic accident, can not carry out effectual warning to the vehicle of coming and going, cause interlinkage traffic accident to take place easily, support with fixed stay between the current rail simultaneously, can not change the automobile striking direction, cause the rail to damage easily, rail stand fixed mounting is subaerial, the buffering effect of playing is not obvious, can not reduce the accident risk.
Disclosure of Invention
The rear-end collision prevention road protection fence has the function of safety warning of rear vehicles, solves the problem of interlinked traffic accidents, can guide and reduce the speed of accident vehicles, surrounds and isolates the accident vehicles, and prevents the occurrence of secondary accidents caused by rear-end collision of the rear vehicles.
The invention provides the following technical scheme: a road protection fence for preventing rear-end collision comprises a base, wherein a buffer cavity is arranged on the upper end surface of the base, pressure reducing plates which are symmetrical front and back are fixedly arranged on the two side wall surfaces of the buffer cavity, two guide rods which are symmetrical to each other are fixedly arranged between the pressure reducing plates, stand columns which can extend out of the ground and move are arranged on the guide rods, an anti-collision guide device is arranged between the two stand columns on the upper side of the ground surface, a hydraulic cavity is arranged in the base on one side of the lower end of each stand column, a locking channel which is communicated with the buffer cavity is arranged on the front side of the hydraulic cavity, a hydraulic power device is arranged in the hydraulic cavity, a locking device is arranged in the locking channel, a turnover early warning device is arranged on one side, close to the road surface, of each stand column, a turnover power device and a warning device are arranged in, the dustproof device can prevent dust from entering the buffer cavity, and the locking device can prevent the turnover device from resetting when in work.
The anti-collision guide device comprises a bottom plate fixed between two adjacent stand columns, a positioning plate is fixedly arranged between the stand columns on the upper side of the bottom plate, positioning grooves are uniformly distributed in the upper end face of the bottom plate, a rotary drum shaft penetrating through the upper end face and the lower end face of the positioning plate is rotatably arranged on the lower end face of each positioning groove, a rotary drum is fixedly arranged on the outer circular surface of the rotary drum shaft between the bottom plate and the positioning plate, and the diameter of the rotary drum is larger than the width of the stand columns.
Carefully, dust keeper including being located the pressure reduction board upside and with the translation groove of cushion chamber intercommunication each other, translation inslot portion is equipped with a plurality of dust guards that can take place the translation, the fixed synchronizing bar that is equipped with of terminal surface under the dust guard, the synchronizing bar can drive dust guard simultaneous movement.
And a buffer spring sleeved outside the guide rod is fixedly arranged between the end surface of one side of the pressure reducing plate and the end surface of the upright post, and the buffer spring can realize the reset of the upright post.
The hydraulic power device comprises a hydraulic plunger capable of sliding in a hydraulic cavity, a push rod capable of extending into the buffer cavity is fixedly arranged on the end face of one side, close to the road surface, of the hydraulic plunger, and a reset spring sleeved on the outer side of the push rod is fixedly arranged between the end face of one side, close to the road surface, of the hydraulic plunger and the wall surface of the hydraulic cavity.
Carefully, be located inside the cushion chamber the outer disc of catch bar is fixed and is equipped with the lock board, locking passageway internal face intercommunication is equipped with the locking chamber, the locking chamber is kept away from the fixed locking electromagnetic core that is equipped with of locking passageway side wall, the locking intracavity portion be equipped with can slide and extend to the trapezoidal plate of locking passageway inside, the homonymy is kept away from to the trapezoidal plate locking passageway side end face with the fixed locking spring that is equipped with between the locking chamber wall, the trapezoidal plate can the piece the lock board locking.
Carefully, upset early warning device is including fixing near road surface one side the protection support of stand terminal surface and longitudinal symmetry, homonymy be equipped with the guard plate pivot that can rotate between the protection support, the outer disc of guard plate pivot is fixed and is equipped with the guard plate, the guard plate overturn to with when the stand is in vertical state, can slow down the early warning to the car.
Carefully, upset power device is including being located the inside arc hydraulic pressure chamber of stand, the inside protection plunger that can slide that is equipped with of arc hydraulic pressure intracavity portion, protection plunger a side end with the fixed arc pole that is equipped with between the guard plate terminal surface, protection plunger another side terminal surface with fixed return spring that is equipped with between the arc hydraulic pressure chamber wall.
Carefully, warning device including being located arc hydraulic pressure chamber one side and in the chamber is accomodate in the warning of terminal surface intercommunication before the stand, the warning is accomodate the intracavity wall and is equipped with the warning push pedal that can slide, the warning push pedal is close to the fixed fluorescence warning light that is equipped with of road surface side end face, the warning push pedal keep away from road surface side end face with the warning is accomodate and is fixed between the chamber wall and be equipped with the warning spring, the fixed defeated oil pipe that is divided into two that is equipped with of hydraulic pressure chamber wall, defeated oil pipe both ends respectively with the warning is accomodate the chamber and arc hydraulic pressure chamber wall communicates each other.
The invention has the following beneficial effects:
1. the invention effectively avoids the transverse impact and the straight impact of the vehicle by utilizing the rotary drum to guide the direction of the out-of-control vehicle, and can reduce the speed of the accident vehicle and reduce the damage to the vehicle and the driver.
2. The invention utilizes the power of the collision between the automobile and the fence to convert into the energy expanded by the protective device, effectively protects the front side and the rear side of the accident vehicle, warns the rear vehicle and simultaneously can prevent the occurrence of the secondary rear-end accident, reduces the accident damage degree and ensures the life safety of the driver.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view taken at A-A in FIG. 2;
FIG. 4 is a schematic view at B-B of FIG. 2;
FIG. 5 is an enlarged view of FIG. 3 at C;
FIG. 6 is an enlarged view of FIG. 4 at D;
fig. 7 is a schematic view at E-E in fig. 5.
In the figure: 11. A base; 12. A buffer chamber; 13. A column; 14. A base plate; 15. Positioning a plate; 16. Positioning a groove; 17. A drum shaft; 18. A rotating drum; 19. A translation slot; 20. A dust-proof plate; 21. A synchronization lever; 22. A protective support; 23. A protective plate rotating shaft; 24. A protection plate; 25. A decompression plate; 26. A guide bar; 27. A buffer spring; 28. A hydraulic chamber; 29. A locking channel; 30. Hydraulic plunger, 31, push rod; 32. A lock plate; 33. A return spring; 34. A lock cavity; 35. An oil delivery pipe; 36. An arc-shaped hydraulic cavity; 37. A guard plunger; 38. A return spring; 39. An arcuate bar; 40. A warning storage cavity; 41. A fluorescent warning light; 42. Locking the electromagnetic iron core; 43. A trapezoidal plate; 44. A locking spring; 45. A warning spring; 46. A warning push plate.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, a road protection fence for preventing rear-end collision comprises bases 11 located at both sides of a road, a buffer chamber 12 is arranged on the upper end surface of each base 11, pressure reducing plates 25 which are symmetrical front and back are fixedly arranged on both side wall surfaces of each buffer chamber 12, two guide rods 26 which are symmetrical to each other are fixedly arranged between the pressure reducing plates 25, a vertical column 13 which can extend out of the ground and move is arranged on each guide rod 26, an anti-collision guide device is arranged between the two vertical columns 13 located on the upper side of the ground surface, a hydraulic chamber 28 is arranged in each base 11 at one side of the lower end of each vertical column 13, a locking channel 29 which is communicated with the buffer chamber 12 is arranged on the front side of each hydraulic chamber 28, a hydraulic power device is arranged in each hydraulic chamber 28, a locking device is arranged in each locking channel 29, a turnover early warning device is arranged at one side of each vertical column 13 close to the road surface, a turnover, the base 11 on the upper side of the guide rod 26 is internally provided with a dustproof device which can prevent dust from entering the buffer cavity 12, and the locking device can prevent the turnover device from resetting when in work.
The anti-collision guide device comprises a bottom plate 14 fixed between two adjacent upright columns 13, positioning plates 15 are fixedly arranged between the upright columns 13 on the upper side of the bottom plate 14, positioning grooves 16 which are uniformly distributed are formed in the upper end surface of the bottom plate 14, a rotary drum shaft 17 penetrating through the upper end surface and the lower end surface of the positioning plate 15 is rotatably arranged on the lower wall surfaces of the positioning grooves 16, a rotary drum 18 is fixedly arranged on the outer circular surface of the rotary drum shaft 17 between the bottom plate 14 and the positioning plate 15, and the diameter of the rotary drum 18 is larger than the width of the upright columns 13.
Wherein, dust keeper including be located decompression board 25 upside and with the translation groove 19 of buffer chamber 12 intercommunication each other, translation groove 19 is inside to be equipped with a plurality of dust guards 20 that can take place the translation, the fixed synchronizing bar 21 that is equipped with of terminal surface under the dust guard 20, synchronizing bar 21 can drive dust guard 20 simultaneous movement.
A buffer spring 27 sleeved outside the guide rod 26 is fixedly arranged between one side end face of the pressure reducing plate 25 and the end face of the upright post 13, and the buffer spring 27 can realize the reset of the upright post 13.
The hydraulic power device comprises a hydraulic plunger 30 capable of sliding in the hydraulic cavity 28, a push rod 31 capable of extending into the buffer cavity 12 is fixedly arranged on the end face of the hydraulic plunger 30 close to one side of the road surface, and a return spring 33 sleeved on the outer side of the push rod 31 is fixedly arranged between the end face of the hydraulic plunger 30 close to one side of the road surface and the wall surface of the hydraulic cavity 28.
Wherein, be located inside the cushion chamber 12 the outer disc of catch bar 31 is fixed and is equipped with lock plate 32, locking channel 29 internal face intercommunication is equipped with locking chamber 34, locking chamber 34 is kept away from the fixed locking electromagnet core 42 that is equipped with of locking channel 29 side wall, locking chamber 34 is inside to be equipped with and to slide and extend to the trapezoidal plate 43 inside the locking channel 29, the homonymy is kept away from to trapezoidal plate 43 locking channel 29 a side end face with the fixed locking spring 44 that is equipped with between the locking chamber 34 wall, trapezoidal plate 43 can the piece lock plate 32 locking.
Wherein, upset early warning device is including fixing near road surface one side the protection support 22 of stand 13 terminal surface and longitudinal symmetry, homonymy be equipped with can pivoted guard plate pivot 23 between the protection support 22, the outer disc of guard plate pivot 23 is fixed and is equipped with guard plate 24, guard plate 24 overturn to with when stand 13 is in vertical state, can slow down the early warning to the car.
The overturning power device comprises an arc-shaped hydraulic cavity 36 located inside the upright column 13, a protective plunger 37 capable of sliding is arranged inside the arc-shaped hydraulic cavity 36, an arc-shaped rod 39 is fixedly arranged between the end surface of one side of the protective plunger 37 and the end surface of the protective plate 24, and a return spring 38 is fixedly arranged between the end surface of the other side of the protective plunger 37 and the wall surface of the arc-shaped hydraulic cavity 36.
Wherein, warning device is including being located 36 one side of arc hydraulic pressure chamber and in chamber 40 is accomodate in the warning of terminal surface intercommunication before stand 13, the warning is accomodate the intracavity 40 internal face and is equipped with gliding warning push pedal 46, warning push pedal 46 is close to the fixed fluorescence warning light 41 that is equipped with of road surface side end face, warning push pedal 46 keep away from road surface side end face with the warning is accomodate and is fixed between the chamber 40 wall and be equipped with warning spring 45, the fixed defeated oil pipe 35 that is divided into two that is equipped with of hydraulic pressure chamber 28 wall, defeated oil pipe 35 both ends respectively with chamber 40 is accomodate in the warning and the 36 walls of arc hydraulic pressure chamber communicate each other.
Initial state: the protection plate 24 is attached to the rotary drum 18 at the corresponding position, the hydraulic plunger 30 and the push rod 31 are positioned at one side close to the upright post 13, the return spring 33, the return spring 38 and the warning spring 45 are all in a free state, and the locking electromagnetic core 42 is in a power-off state.
The working principle is as follows: when the vehicle direction is uncontrolled, the vehicle strikes to the outer disc of the rotary drum 18, and then the rotary drum shaft 17 can be driven to rotate, in the automobile driving process, under the rolling action of the rotary drum 18, the driving direction generates tiny deviation, the driving direction of the automobile is gradually kept consistent with the arrangement direction of a road fence, when the automobile strikes to the upper side of the fence, the upright post 13 at the rear of the automobile moves to one side far away from the road along the guide rod 26 under the action of the striking force, and then the buffer spring 27 is compressed, the upright post 13 moves to one side far away from the road and simultaneously pushes the push rod 31 at the corresponding position to move to one side far away from the road, and then the hydraulic plunger 30 inside the hydraulic cavity 28 is pushed to move to one side far away from the road, the hydraulic plunger 30 pushes the hydraulic oil inside the hydraulic cavity 28 to respectively flow to the arc-shaped hydraulic cavity 36 and the warning storage cavity 40 through the oil pipeline 35, when the hydraulic oil flows to The return spring 38 is moved and stretched, the arc-shaped rod 39 is further pushed to extend out of the arc-shaped hydraulic cavity 36, the protection plate 24 on the same side is further pushed to rotate clockwise around the axis of the protection plate rotating shaft 23 to a position perpendicular to the upright post 13 on the same side, meanwhile, hydraulic oil flows into the warning accommodating cavity 40 through the oil pipeline 35, the fluorescent warning lamp 41 is further pushed to extend out of the end face of the upright post 13 on one side close to the road surface, and a vehicle early warning effect can be achieved, at the moment, the protection plate 24 on the rear side of the automobile is unfolded to warn a rear vehicle, when the push rod 31 moves towards one side far away from the road, the locking plate 32 moves into the locking channel 29 and is abutted against the inclined plane of the trapezoidal plate 43 on one side close to the buffer cavity 12 and continues moving, at the moment, the locking plate 32 pushes the trapezoidal plate 43 to move towards the inside of the locking, the trapezoidal plate 43 is pushed into the translation groove 19 again under the elastic force of the locking spring 44 and locks the locking plate 32, the upright post 13 at the tail part of the automobile moves towards one side close to the road surface again under the elastic force of the buffer spring 27 after the automobile is impacted, so that the integral reset of the upright post 13 is realized, the fence has the buffer effect and can reduce the damage after the automobile is impacted, the automobile moves forwards and drives the upright post 13 at the head part of the automobile to move towards one side far away from the road, so that the protection plate 24 on the upright post 13 at one side of the head part can be turned over, the advancing speed of the automobile can be effectively reduced, and the accident automobile is surrounded in the protection plates 24 at two adjacent sides, so that the accident automobile can be effectively protected, the invention can protect the rear automobile while protecting the accident automobile and prevent the secondary accident, when accident handling personnel come to the scene after, switch on locking electromagnetic core 42, and then produce magnetic force and attract trapezoidal plate 43 to retrieve and compress locking spring 44 to locking chamber 34 is inside, locking spring 44 removes the restriction to locking plate 32 this moment, hydraulic pressure plunger 30 and catch bar 31 move to being close to buffer chamber 12 one side under hydraulic pressure plunger 30's pulling force, and then inhale back to hydraulic pressure chamber 28 inside with the inside hydraulic oil of arc hydraulic pressure chamber 36 and 0 again through defeated oil pipe 35 respectively, fluorescence warning light 41 resets under the pulling force of warning spring 45, protection plunger 37 and arc pole 39 reset around protection plate pivot 23 anticlockwise rotation under return spring 38 pulling force, and then drive protection plate 24 and rotate and realize resetting around protection plate pivot 23.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (9)
1. The utility model provides a road protection rail of preventing knocking into back, includes base (11), its characterized in that: the anti-collision safety protection device is characterized in that a buffer cavity (12) is arranged on the upper end face of the base (11), pressure reducing plates (25) which are symmetrical front and back are fixedly arranged on the two side wall faces of the buffer cavity (12), two guide rods (26) which are symmetrical to each other are fixedly arranged between the pressure reducing plates (25), stand columns (13) which can extend out of the ground and move are arranged on the guide rods (26), an anti-collision guide device is arranged between the two stand columns (13) which are positioned on the upper side of the ground surface, a hydraulic cavity (28) is arranged in the base (11) on one side of the lower end of each stand column (13), a locking channel (29) which is communicated with the buffer cavity (12) is arranged on the front side of the hydraulic cavity (28), a hydraulic power device is arranged in the hydraulic cavity (28), a locking device is arranged in the locking channel (29), a turnover early warning device is arranged on one side, which is close to the road, the inner part of the base (11) on the upper side of the guide rod (26) is provided with a dustproof device, the dustproof device can prevent dust from entering the buffer cavity (12), and the locking device can prevent the turnover device from resetting when in work.
2. A rear-end collision preventing road protection fence as claimed in claim 1, wherein: the anti-collision guide device comprises a bottom plate (14) fixed between two adjacent upright columns (13), a positioning plate (15) is fixedly arranged between the upright columns (13) on the upper side of the bottom plate (14), positioning grooves (16) which are uniformly distributed are formed in the upper end face of the bottom plate (14), a rotary drum shaft (17) penetrating through the upper end face and the lower end face of the positioning plate (15) is rotatably arranged on the lower wall face of each positioning groove (16), a rotary drum (18) is fixedly arranged on the outer circular face of the rotary drum shaft (17) between the bottom plate (14) and the positioning plate (15), and the diameter of the rotary drum (18) is larger than the width of each upright column (13).
3. A rear-end collision preventing road protection fence as claimed in claim 1, wherein: the dustproof device comprises a translation groove (19) which is located on the upper side of the pressure reducing plate (25) and is communicated with the buffer cavity (12), a plurality of dustproof plates (20) capable of translating are arranged inside the translation groove (19), a synchronizing rod (21) is fixedly arranged on the lower end face of each dustproof plate (20), and the synchronizing rod (21) can drive the dustproof plates (20) to move synchronously.
4. A rear-end collision preventing road protection fence as claimed in claim 1, wherein: and a buffer spring (27) sleeved outside the guide rod (26) is fixedly arranged between the end surface of one side of the pressure reducing plate (25) and the end surface of the upright post (13).
5. A rear-end collision preventing road protection fence as claimed in claim 1, wherein: the hydraulic power device comprises a hydraulic plunger (30) capable of sliding in a hydraulic cavity (28), the hydraulic plunger (30) is close to one side end face of the road surface and is fixedly provided with a push rod (31) capable of extending to the interior of the buffer cavity (12), the hydraulic plunger (30) is close to one side end face of the road surface and is fixedly provided with a reset spring (33) sleeved on the outer side of the push rod (31) between the wall faces of the hydraulic cavity (28).
6. A rear-end collision preventing road protection fence as claimed in claim 5, wherein: be located inside cushion chamber (12) the outer disc of catch bar (31) is fixed and is equipped with lock plate (32), locking passageway (29) internal face intercommunication is equipped with locking chamber (34), locking chamber (34) are kept away from locking passageway (29) a lateral wall face is fixed and is equipped with locking electromagnetic core (42), locking chamber (34) are inside to be equipped with and to slide and extend to trapezoidal plate (43) inside locking passageway (29), the homonymy is kept away from trapezoidal plate (43) locking passageway (29) a lateral wall face with it is fixed and is equipped with locking spring (44) to lock between chamber (34) the wall, trapezoidal plate (43) can the piece lock plate (32) locking.
7. A rear-end collision preventing road protection fence as claimed in claim 1, wherein: upset early warning device is including fixing near road surface one side protection support (22) of stand (13) terminal surface and longitudinal symmetry, homonymy be equipped with between protection support (22) can pivoted guard plate pivot (23), the outer disc of guard plate pivot (23) is fixed and is equipped with guard plate (24), guard plate (24) overturn extremely with when stand (13) is in vertical state, can slow down the early warning to the car.
8. A rear-end collision preventing road protection fence as claimed in claim 7, wherein: upset power device is including being located inside arc hydraulic pressure chamber (36) of stand (13), arc hydraulic pressure chamber (36) inside is equipped with can gliding protection plunger (37), protection plunger (37) a side end with fixed arc pole (39) that are equipped with between guard plate (24) the terminal surface, protection plunger (37) another side end with fixed return spring (38) that are equipped with between arc hydraulic pressure chamber (36) the wall.
9. A rear-end collision preventing road protection fence as claimed in claim 7, wherein: warning device is including being located arc hydraulic pressure chamber (36) one side and in chamber (40) are accomodate in the warning of terminal surface intercommunication before stand (13), chamber (40) internal face is accomodate in the warning is equipped with gliding warning push pedal (46), warning push pedal (46) are close to a fixed fluorescent warning lamp (41) that is equipped with of road surface side end face, warning push pedal (46) keep away from a road surface side end face with warning is accomodate and is fixed between chamber (40) the wall and is equipped with warning spring (45), hydraulic pressure chamber (28) wall is fixed to be equipped with defeated oil pipe (35) that is divided into two, defeated oil pipe (35) both ends respectively with chamber (40) are accomodate in the warning and arc hydraulic pressure chamber (36) wall communicates each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110216259.XA CN112832161A (en) | 2021-02-26 | 2021-02-26 | Road protection fence for preventing rear-end collision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110216259.XA CN112832161A (en) | 2021-02-26 | 2021-02-26 | Road protection fence for preventing rear-end collision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112832161A true CN112832161A (en) | 2021-05-25 |
Family
ID=75933732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110216259.XA Withdrawn CN112832161A (en) | 2021-02-26 | 2021-02-26 | Road protection fence for preventing rear-end collision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112832161A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114438933A (en) * | 2022-01-25 | 2022-05-06 | 山东高速股份有限公司 | Road safety device |
| CN115012343A (en) * | 2022-07-08 | 2022-09-06 | 李智 | Highway guardrail that anti striking ability is strong |
| CN115234082A (en) * | 2022-09-26 | 2022-10-25 | 中铁十九局集团第三工程有限公司 | Protection fence with pull-back function for bridge construction |
-
2021
- 2021-02-26 CN CN202110216259.XA patent/CN112832161A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114438933A (en) * | 2022-01-25 | 2022-05-06 | 山东高速股份有限公司 | Road safety device |
| CN115012343A (en) * | 2022-07-08 | 2022-09-06 | 李智 | Highway guardrail that anti striking ability is strong |
| CN115012343B (en) * | 2022-07-08 | 2024-01-16 | 李智 | Highway guardrail that crashworthiness is strong |
| CN115234082A (en) * | 2022-09-26 | 2022-10-25 | 中铁十九局集团第三工程有限公司 | Protection fence with pull-back function for bridge construction |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210525 |
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| WW01 | Invention patent application withdrawn after publication |