CN110607745B - Anticollision structure of road and bridge - Google Patents
Anticollision structure of road and bridge Download PDFInfo
- Publication number
- CN110607745B CN110607745B CN201910907468.1A CN201910907468A CN110607745B CN 110607745 B CN110607745 B CN 110607745B CN 201910907468 A CN201910907468 A CN 201910907468A CN 110607745 B CN110607745 B CN 110607745B
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- rod
- ring
- fixedly connected
- vertical rod
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
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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
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
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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
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0461—Supports, e.g. posts
-
- 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
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0492—Provisions for guiding in combination with rails, e.g. tire-gutters
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention relates to an anti-collision structure of a road and a bridge, belonging to the technical field of anti-collision structures, comprising a stand column, wherein the stand column is fixedly connected to the ground, the stand column is fixedly connected with a horizontal cross rod, the cross rod is provided with an impact transfer component, the impact transfer component comprises a vertical rod and a connecting ring, the vertical rod is hinged to the bottom of the cross rod, the hinge axis of the vertical rod is parallel to the length direction of the cross rod, the vertical rod is vertically arranged, the connecting ring is pre-embedded in the ground, the bottom of the vertical rod is hinged with the connecting ring, and a buffer part is fixedly connected between the cross rod and the stand column.
Description
Technical Field
The invention relates to the technical field of anti-collision structures, in particular to an anti-collision structure of a road bridge.
Background
At present, with the continuous development of economic construction, the traffic and transportation are increasingly busy. Traffic accidents are the most frequent occurrences in the current road sections or road bridge sections. In order to reduce the occurrence of traffic accidents, various guard railings are respectively arranged at the two sides of the road.
Existing crash structures are typically constructed with posts arranged upright from the ground and cross bars perpendicular to the posts.
The above prior art solutions have the following drawbacks: when receiving the striking of vehicle out of control, the impact energy who applies most of railing directly transmits the pillar, and the impact energy that the pillar received is great, and the pillar is impaired deformation easily, and the pillar is impaired the back and is weakened the holding power of horizontal pole, and makes the overall protective capacities to the vehicle of crashproof structure reduce.
Disclosure of Invention
The invention aims to provide an anti-collision structure of a road bridge, which reduces the possibility of damage of a strut and improves the protection capability of a vehicle.
The above object of the present invention is achieved by the following technical solutions:
an anti-collision structure of a road and bridge comprises a stand column, wherein the stand column is fixedly connected to the ground, the stand column is fixedly connected with a horizontal cross rod, the cross rod is provided with an impact transfer assembly, the impact transfer assembly comprises a vertical rod and a connecting ring, the vertical rod is hinged to the bottom of the cross rod, the hinge axis of the vertical rod is parallel to the length direction of the cross rod, the vertical rod is vertically arranged, the connecting ring is embedded in the ground, the bottom of the vertical rod is hinged to the connecting ring, a connecting piece is connected between the vertical rod and the connecting ring, and a buffer piece is; the connecting piece includes mounting and lower mounting, it all is provided with the pole of stretching into, one of them to go up one side that mounting and lower mounting are close to each other stretch into pole and last mounting fixed connection, another stretch into pole and lower mounting fixed connection, the one end fixedly connected with retainer plate of the pole of stretching into of going up the mounting is close to lower mounting, the pole of stretching into of mounting is close to the also fixedly connected with retainer plate of one end of last mounting down, stretches into a plurality of annular protruding circles of outer wall fixedly connected with of pole, and the outer wall of annular protruding circle upwards slopes gradually and keeps away from the pole of stretching into, stretches into welded connection between pole and the retainer plate.
By adopting the technical scheme, when an out-of-control vehicle collides with the cross rod, part of the impact force received by the cross rod is transmitted to the stand column through the buffer part, the buffer part can play a certain buffer role to generate deformation, so that the impact force received by the stand column is reduced, part of the impact force received by the cross rod is transmitted to the fixing ring through the vertical rod and then transmitted to the ground, so that the impact force received by the cross rod can be transmitted in two directions, thereby reducing the impact force received by the stand column, the vertical rod is hinged with the cross rod and the fixing ring, the buffer part is deformed, when the cross rod moves towards the direction close to the stand column, the vertical rod and the cross rod are not easy to break, so that the tension of the vertical rod on the cross rod is ensured, the impact force received by the cross rod can be transmitted to the vertical rod and then transmitted to the ground, the impact force, the vehicle bumps the buffer part to deform, so that the cross rod is close to the upright post, and the vehicle can completely bump the upright post only after the vertical rod and the cross rod are integrally pulled or the vertical rod is broken; when the vertical rod and the connecting ring are connected, after the upper fixing piece is inserted into the vertical rod and the lower fixing piece is inserted into the fixing ring, the upper fixing piece and the lower fixing piece are close to each other, the extending rod extends into the fixing ring, then the upper fixing piece and the lower fixing piece are knocked, the extending rod gradually moves in the fixing ring until the vertical rod is tensioned, then the extending rod and the fixing ring are welded, and the firmness of the connecting piece for the connection between the vertical rod and the connecting ring is guaranteed; the setting of annular protruding circle makes and stretches into the pole and playing the guide effect stretching into the in-process of retainer plate, and is difficult for removing to the direction that stretches out the retainer plate, has guaranteed that last mounting and lower mounting can be taut the montant.
The invention is further configured to: the buffer piece comprises a fixing bolt, a resistance cylinder and an elastic piece, the resistance cylinder is located between the stand column and the cross rod, the fixing bolt penetrates through the stand column and the resistance cylinder to connect the stand column and the cross rod together, and the elastic piece is located in the resistance cylinder and sleeved outside the fixing bolt.
Through adopting above-mentioned technical scheme, fixing bolt arrives the stand in earlier stage, the effect that resistance section of thick bamboo and horizontal pole are connected, when the horizontal pole receives the striking, the impact force that the horizontal pole received transmits a resistance section of thick bamboo, a resistance section of thick bamboo receives the impulsive force and produces the deformation, play certain cushioning effect, and great impulsive force makes a resistance section of thick bamboo produce the impulsive force that warp and also can consume a part of vehicle, the impulsive force that makes the stand receive reduces and not fragile, the cushioning effect of a resistance section of thick bamboo has been strengthened to the elastic component, it just can produce the deformation to make a resistance section of thick bamboo receive great impulsive force.
The invention is further configured to: fixedly connected with connecting rod between the stand, fixedly connected with resistance bar between connecting rod and the horizontal pole, resistance bar and resistance cylinder fixed connection.
Through adopting above-mentioned technical scheme, the impact of the vehicle that the horizontal pole received can be transmitted for the connecting rod, and the impulsive force that the connecting rod produced to the vehicle striking plays the dispersion effect simultaneously, and the connecting rod can further transmit the impulsive force that self received for other stands of its connection, makes the impulsive force that the stand that the vehicle striking position is closest to received can transmit for its adjacent stand, reduces the possibility that the stand damaged.
The invention is further configured to: the vertical rod is rotatably connected with a roller, the roller is sleeved outside the vertical rod, and the rotating axis of the roller is vertical.
Through adopting above-mentioned technical scheme, when the vehicle struck the gyro wheel, usually and the gyro wheel within a definite time have certain angle, the vehicle drives the gyro wheel and rotates, and the gyro wheel rotates and drives the vehicle and change striking direction, makes the striking strength of vehicle shift rapidly, and difficult messenger's vehicle receives the resilience force of horizontal pole and is rebounded and produce and strike repeatedly, can alleviate the injury degree that the vehicle striking led to the fact.
The invention is further configured to: the outer fixed connection of montant has two spacing rings, and two spacing rings are located the top of gyro wheel respectively, and the outside threaded connection of montant has solid fixed ring, gu fixed ring and gyro wheel fixed connection are provided with the speed reduction piece between solid fixed ring and the spacing ring, and the outside of montant is located to the speed reduction piece cover.
Through adopting above-mentioned technical scheme, the vehicle drives the gyro wheel and rotates, the gyro wheel rotates and drives solid fixed ring and rotate, gu fixed ring rotates the degree that compresses tightly the gear reduction gradually and increases, and the gear reduction is spacing by the spacing ring, can not further remove to the direction of keeping away from the spacing ring of self butt, thereby gu fixed ring's rotation slows down gradually, and there is great frictional force between gyro wheel and the vehicle, the gyro wheel rotates and slows down the frictional force of giving the vehicle a gradual grow opposite with vehicle moving direction, help carrying out slow deceleration to the vehicle, can be very fast slow down and stop after making the vehicle striking.
The invention is further configured to: the speed reducing part is a rubber column.
By adopting the technical scheme, the rubber column is pressed by the fixing ring, so that the movement of the fixing ring can be decelerated, and the rotating speed of the fixing ring is reduced; and the rubber column has certain cushioning effect, can absorb some strange extrusion force that trades when the rubber column is by solid fixed ring extrusion deformation, makes the fixed ring reduce the extrusion force of spacing ring, and the spacing ring is difficult for producing the damage.
The invention is further configured to: the gyro wheel is the PE material, and the gyro wheel intussuseption is filled with rubber.
Through adopting above-mentioned technical scheme, make the gyro wheel have better elasticity to can play better cushioning effect to the vehicle.
In conclusion, the beneficial technical effects of the invention are as follows:
1. by arranging the impact transfer assembly, the impact force applied to the cross rod can be transmitted in two directions, the impact force applied to the stand column is reduced, the stand column is not easy to damage, the vehicle protection capability is improved, and the stand column is not easy to break and rush out of a road by a vehicle;
2. through the arrangement of the connecting rod and the resistance rod, the impact force of the vehicle on the cross rod can be transmitted to the connecting rod, the connecting rod can further transmit the impact force on the connecting rod to other connected upright columns, so that the impact force on the upright column closest to the impact position of the vehicle can be further dispersed, and the possibility of damage to the upright column is reduced;
3. through setting up spacing ring and speed reduction member, the gyro wheel rotates the degree that compresses tightly the speed reduction member and increases gradually, and solid fixed ring's rotation slows down gradually, and the gyro wheel rotates and slows down for a frictional force with the gradual grow of vehicle moving direction opposite, can be very fast slow down and stop after making the vehicle striking.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;
fig. 3 is a cross-sectional view of the present invention.
In the figure, 1, a column; 11. a connecting rod; 12. a resistance bar; 2. a cross bar; 3. an impulse transfer assembly; 31. a vertical rod; 311. a roller; 312. a limiting ring; 313. a fixing ring; 314. a speed reducer; 32. a connecting ring; 4. a buffer member; 41. fixing the bolt; 42. a resistance cylinder; 43. an elastic member; 5. a connecting member; 51. an upper fixing member; 511. extending into the rod; 512. an annular convex ring; 52. a lower fixing member; 521. and a fixing ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the anti-collision structure for roads and bridges disclosed by the invention comprises an upright post 1, wherein the upright post 1 is fixedly connected to the ground, the upright post 1 is fixedly connected with a horizontal cross rod 2, the cross rod 2 is provided with an impact transfer component 3, and the impact transfer component 3 can transfer part of impact of an out-of-control vehicle on the cross rod 2 to the ground, so that the possibility that the upright post 1 is directly damaged is reduced, the stable supporting force of the cross rod 2 of the upright post 1 is ensured, and the protective capability of the vehicle is improved.
The impulsive force transferring assembly 3 comprises a vertical rod 31 and a connecting ring 32, the vertical rod 31 is hinged to the bottom of the cross rod 2, the hinged axis of the vertical rod 31 is parallel to the length direction of the cross rod 2, the vertical rod 31 is vertically arranged, the connecting ring 32 is embedded in the ground, the bottom of the vertical rod 31 is hinged to the connecting ring 32, a connecting piece 5 is connected between the vertical rod 31 and the connecting ring 32, and a buffer piece 4 is fixedly connected between the cross rod 2 and the stand column 1. When an out-of-control vehicle impacts the cross rod 2, part of the impact force received by the cross rod 2 is transmitted to the upright post 1 through the buffer piece 4, and part of the impact force is transmitted to the fixing ring 313 through the vertical rod 31 and then transmitted to the ground, so that the impact force received by the cross rod 2 is divided into two parts for transmission, and the impact force received by the upright post 1 is reduced; the hinge joint of the vertical rod 31, the cross rod 2 and the fixing ring 313 ensures that when the cross rod 2 is impacted and moves towards the direction close to the upright post 1, the vertical rod 31 and the cross rod 2 rotate relatively, the joint of the vertical rod 31 and the cross rod 2 is not easy to break, the tension of the vertical rod 31 on the cross rod 2 is ensured, and the impact force received by the cross rod 2 can be transmitted to the vertical rod 31 and then transmitted to the ground.
The connecting piece 5 comprises an upper fixing piece 51 and a lower fixing piece 52, wherein the upper fixing piece 51 and the lower fixing piece 52) are provided with an extending rod 511 at one side close to each other, one of the extending rods 511 is fixedly connected with the upper fixing piece 51, the other extending rod 511 is fixedly connected with the lower fixing piece 51, one end of the extending rod 511 of the upper fixing piece, close to the lower fixing piece 52, is fixedly connected with a fixing ring 521, one end of the extending rod 511 of the lower fixing piece 52, close to the upper fixing piece 52, is also fixedly connected with a fixing ring 521, the outer wall of the extending rod 511 is fixedly connected with a plurality of annular convex rings 512, the outer wall of each annular convex ring 512 inclines upwards gradually to be far away from the extending rod 511, and the extending rod 511 is welded with the. When connecting montant 31 and go-between 32, insert last mounting 51 in montant 31, lower mounting 52 inserts back in the solid fixed ring 313, be close to last mounting 51 and lower mounting 52 each other, the messenger stretches into in pole 511 stretches into retainer plate 521, then strike mounting 51 and lower mounting 52, annular protruding circle 512 plays the guide effect stretching into pole 511 in the in-process that stretches into retainer plate 521, annular protruding circle 512 is difficult to remove to the direction that stretches out retainer plate 521, it can be taut with montant 31 to have guaranteed to go up mounting 51 and lower mounting 52, after montant 31 is taut, will stretch into and weld between pole 511 and the retainer plate 521, the fastness of being connected between connecting piece 5 to montant 31 and go-between 32 has been guaranteed.
Rotate on the montant 31 and be connected with gyro wheel 311, the outside of montant 31 is located to gyro wheel 311 cover, the axis of rotation of gyro wheel 311 is vertical, two spacing rings 312 of the outside fixedly connected with of montant 31, two spacing rings 312 are located the top of gyro wheel 311 respectively, the outside threaded connection of montant 31 has solid fixed ring 313, gu fixed ring 313 and gyro wheel 311 fixed connection, gu fixed ring 313 is the metal material, guaranteed to rotate smoothly between solid fixed ring 313 and the montant 31, gu be provided with speed reduction part 314 between fixed ring 313 and the spacing ring 312, speed reduction part 314 cover locates the outside of montant 31, speed reduction part 314 is the rubber column, gyro wheel 311 is the PE material, and the intussuseption of gyro wheel. When a runaway vehicle impacts the roller 311, a certain angle is formed between the roller 311 and the vehicle, the impact of the vehicle drives the roller 311 to rotate, the roller 311 rotates to guide the vehicle to change the impact direction, so that the impact force of the vehicle is rapidly transferred, the vehicle is not easily rebounded by the resilience force of the cross rod 2 to generate repeated impact, and the damage degree caused by the vehicle impact can be reduced; the roller 311 rotates to drive the fixing ring 313 to rotate, the fixing ring 313 rotates to gradually press the speed reducer 314, so that the rotation of the fixing ring 313 is gradually slowed, a large friction force exists between the roller 311 and the vehicle, the roller 311 rotates slowly to provide the vehicle with a gradually increased friction force opposite to the moving direction of the vehicle, the vehicle is favorably decelerated slowly, and the vehicle can be decelerated quickly to stop after being collided.
The implementation principle of the embodiment is as follows: when the uncontrolled vehicle collides with the cross bar 2, part of the impact force applied to the cross bar 2 is transmitted to the fixing ring 313 through the vertical bar 31 and then transmitted to the ground; one part of the impact force is transmitted to the upright post 1 through the resistance cylinder 42, the resistance cylinder 42 and the elastic piece 43 in the resistance cylinder 42 play a role in buffering the upright post 1 to generate deformation, so that a part of the impact force of the vehicle is consumed, and the impact force applied to the upright post 1 is reduced; meanwhile, the impact force received by the cross rod 2 is transmitted to the connecting rod 11 through the resistance rod 12 and further transmitted to other adjacent upright columns 1 through the connecting rod 11, so that the impact force received by the upright column 1 closest to the impact position can be better dispersed; to sum up, the impact that horizontal pole 2 received is divided into the three part and is transmitted to reduce the impact that stand 1 received, guaranteed the stable holding power of stand 1's horizontal pole 2, the protective capacities of the vehicle of improvement.
When a vehicle collides with the roller 311, the roller 311 is driven to rotate by the collision of the vehicle, the roller 311 rotates to guide the vehicle to change the collision direction, so that the collision force of the vehicle is rapidly transferred, the vehicle is not easily rebounded by the resilience force of the cross rod 2 to generate repeated collision, and the injury degree caused by the vehicle collision can be reduced; and the roller 311 rotates to drive the fixing ring 313 to rotate, the fixing ring 313 rotates to gradually press the speed reducer 314, so that the rotation of the fixing ring 313 is gradually slowed, a large friction force exists between the roller 311 and the vehicle, the roller 311 rotates slowly to provide the vehicle with a gradually increased friction force opposite to the moving direction of the vehicle, the vehicle is favorably decelerated slowly, and the vehicle can be decelerated quickly to stop after being collided.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. The utility model provides an anticollision structure of road and bridge, includes stand (1), stand (1) fixed connection in ground, stand (1) fixed connection has horizontally horizontal pole (2), its characterized in that: the horizontal rod (2) is provided with an impact transfer assembly (3), the impact transfer assembly (3) comprises a vertical rod (31) and a connecting ring (32), the vertical rod (31) is hinged to the bottom of the horizontal rod (2), the hinge axis of the vertical rod (31) is parallel to the length direction of the horizontal rod (2), the vertical rod (31) is vertically arranged, the connecting ring (32) is embedded in the ground, the bottom of the vertical rod (31) is hinged to the connecting ring (32), a connecting piece (5) is connected between the vertical rod (31) and the connecting ring (32), and a buffer piece (4) is fixedly connected between the horizontal rod (2) and the upright post (1); the connecting piece (5) comprises an upper fixing piece (51) and a lower fixing piece (52), one sides of the upper fixing piece (51) and the lower fixing piece (52) which are close to each other are provided with an extending rod (511), one of the extending rods (511) is fixedly connected with the upper fixing piece (51), the other extending rod (511) is fixedly connected with the lower fixing piece (51), one end of the extending rod (511) of the upper fixing piece, which is close to the lower fixing piece (52), is fixedly connected with a fixing ring (521), one end of the extending rod (511) of the lower fixing piece (52) close to the upper fixing piece (52) is also fixedly connected with a fixing ring (521), the outer wall of the extending rod (511) is fixedly connected with a plurality of annular convex rings (512), and the outer wall of the annular convex ring (512) is inclined upwards gradually and is far away from the extending rod (511), and the extending rod (511) is connected with the fixed ring (521) in a welding way.
2. The anti-collision structure of the road and bridge according to claim 1, wherein: the buffer piece (4) comprises a fixing bolt (41), a resistance cylinder (42) and an elastic piece (43), the resistance cylinder (42) is located between the upright post (1) and the cross rod (2), the fixing bolt (41) penetrates through the upright post (1) and the resistance cylinder (42) to connect the upright post (1) and the cross rod (2) together, and the elastic piece (43) is located in the resistance cylinder (42) and sleeved outside the fixing bolt (41).
3. The anti-collision structure of the road and bridge according to claim 2, wherein: fixedly connected with connecting rod (11) between stand (1), fixedly connected with resistance bar (12) between connecting rod (11) and horizontal pole (2), resistance bar (12) and resistance cylinder (42) fixed connection.
4. The anti-collision structure of the road and bridge according to claim 1, wherein: the vertical rod (31) is rotatably connected with a roller (311), the roller (311) is sleeved outside the vertical rod (31), and the rotating axis of the roller (311) is vertical.
5. The anti-collision structure of the road and bridge according to claim 4, wherein: the outer fixed connection of montant (31) has two spacing rings (312), and two spacing rings (312) are located the top of gyro wheel (311) respectively, and the outside threaded connection of montant (31) has solid fixed ring (313), gu fixed ring (313) and gyro wheel (311) fixed connection are provided with speed reduction spare (314) between solid fixed ring (313) and spacing ring (312), and the outside of montant (31) is located in speed reduction spare (314) cover.
6. The anti-collision structure of the road and bridge according to claim 5, wherein: the speed reducing part (314) is a rubber column.
7. The anti-collision structure of the road and bridge according to claim 4, wherein: the roller (311) is made of PE materials, and rubber is filled in the roller (311).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910907468.1A CN110607745B (en) | 2019-09-24 | 2019-09-24 | Anticollision structure of road and bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910907468.1A CN110607745B (en) | 2019-09-24 | 2019-09-24 | Anticollision structure of road and bridge |
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| CN110607745A CN110607745A (en) | 2019-12-24 |
| CN110607745B true CN110607745B (en) | 2021-03-19 |
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| CN113529616A (en) * | 2021-06-21 | 2021-10-22 | 新疆石河子职业技术学院（石河子市技工学校） | Highway central authorities median anticollision barrier |
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| KR20170076209A (en) * | 2015-12-24 | 2017-07-04 | 안석주 | Rotating device using waste materials and preparing method thereof |
| CN207452779U (en) * | 2017-10-31 | 2018-06-05 | 安徽皓泉实业有限公司 | A kind of flexible impact type crash barrier for roads |
| CN208517816U (en) * | 2018-07-12 | 2019-02-19 | 赵娟芳 | A kind of road and bridge anticollision barrier |
| CN208717800U (en) * | 2018-07-16 | 2019-04-09 | 四川瀚科建设有限公司 | A kind of town road safety guide rail |
| CN209040027U (en) * | 2018-07-24 | 2019-06-28 | 北京易成市政工程有限责任公司 | A kind of through street anticollision barrier |
| CN208995915U (en) * | 2018-09-19 | 2019-06-18 | 中交二公局第四工程有限公司 | A kind of bridge security type protective fence |
| CN210766533U (en) * | 2019-07-22 | 2020-06-16 | 哈尔滨交研交通工程有限责任公司 | Antidetonation energy-absorbing road bed guardrail |
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