CN114214984A - Road safety isolation device - Google Patents
Road safety isolation device Download PDFInfo
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- CN114214984A CN114214984A CN202111606446.5A CN202111606446A CN114214984A CN 114214984 A CN114214984 A CN 114214984A CN 202111606446 A CN202111606446 A CN 202111606446A CN 114214984 A CN114214984 A CN 114214984A
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- 238000002955 isolation Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 92
- 239000010959 steel Substances 0.000 claims abstract description 92
- 238000004804 winding Methods 0.000 claims abstract description 5
- 238000013016 damping Methods 0.000 claims description 21
- 230000007935 neutral effect Effects 0.000 abstract description 6
- 230000006378 damage Effects 0.000 abstract description 5
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 8
- 239000002861 polymer material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 241001391944 Commicarpus scandens Species 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 239000006223 plastic coating Substances 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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Classifications
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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
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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
- E01F15/06—Continuous barriers extending along roads or between traffic lanes essentially made of cables, nettings or the like
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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
A road safety isolation device belongs to the technical field of road safety isolation and comprises a tightening device, a middle upright rod and a fixing plate; the left side and the right side of the tightening device along the length direction of the road are respectively provided with a winding steel wire rope capable of applying prestress tension; a buckle is reserved at the upper end of the middle upright rod, and the lower end of the middle upright rod is of a ball joint structure; two ends of the fixing plate can be fixedly connected with the lower end of the tightening device; in the invention, when the isolation fence is impacted by an automobile with the upper part vertical to the length direction of the road, the steel wire rope is broken, and the neutral rods on the two sides of the breaking point of the steel wire rope are respectively and sequentially laid down towards the two sides, so that the isolation fence is prevented from being integrally overturned, broken and seriously deformed, and causing chain damage to oppositely running vehicles and personnel; when the isolated column is impacted by the automobile from the length direction of the upper road, the neutral rods are sequentially laid down, so that the upper cross rod can be prevented from sliding along the engine and being inserted into the automobile, the safety is improved, and the injury to personnel in the automobile is reduced.
Description
Technical Field
The invention belongs to the technical field of road safety isolation, and particularly relates to a road safety isolation device and an implementation method thereof.
Background
With the rapid development of economy in China, the living standard of people is continuously improved, the traffic infrastructure is continuously improved, more and more families use private cars as travel tools, urban and rural roads are basically provided with road barriers, when a traffic accident happens, a vehicle which runs suddenly is easy to collide or slide the barrier, and the barrier can play a certain role in buffering, reducing speed and stopping urgently.
At present, most of common isolation fences on municipal roads are two main cross bars at the upper part and the lower part, the middle of each main cross bar is continuously provided with a plastic steel hollow tube structure with short vertical bars at intervals, all the parts are connected by adopting plug-in mounting or bolts, when the isolation bars are collided by automobiles in the length direction of the cross bars, the vertical bars are separated from the upper cross bars and lodged, the upper cross bars still keep the original posture at the initial stage of collision, and for small and medium-sized automobiles, as the position of an engine cover in front of a cockpit is lower, the upper cross bars fall on the engine cover, and along with the high-speed advance of the automobiles, the upper cross bars puncture front windshield glass, and then stab personnel in the automobiles to cause serious injury; when the isolating rod is collided by the automobile vertical to the length direction of the cross rod, the transverse interval section of the isolating rod which is collided can be broken or overturned, and the automobile and the pedestrian running on the other side are damaged.
Disclosure of Invention
The invention aims to overcome the defects of the existing road isolation technology and provide a road safety isolation device and an implementation method thereof.
The invention is realized by the following technical scheme:
a road safety isolation device comprises a tightening device, a middle upright rod and a fixing plate; the left side and the right side of the tightening device along the length direction of the road are respectively provided with a winding steel wire rope capable of applying prestress tension; a buckle is reserved at the upper end of the middle upright rod, and the lower end of the middle upright rod is of a ball joint structure; the two ends of the fixing plate along the length direction of the road can be fixedly connected with the lower end of the tightening device, bolt holes are formed in the fixing plate along the length direction of the road at intervals, and the bolt holes are screwed with the screw rod at the lower end of the middle vertical rod.
The tightening device comprises a clockwork spring device, a clockwork spring driving rod, a tightening rod, a steel wire rope, a rope arranger, a locking pin, a damping rod and a base; the spring driving rod comprises a middle vertical rod and a middle gear, a spring device is arranged at the lower end of the spring driving rod, the upper end of the spring driving rod is fixedly connected with the middle gear, the spring device is connected with the middle gear through the middle vertical rod, two damping rods are sleeved on the middle vertical rod, the damping rods can horizontally rotate around the middle vertical rod but cannot slide up and down, and the spring device can drive the middle vertical rod to rotate; the tightening rod comprises side gears, side vertical rods and extension springs, the side gears are arranged on the left and right sides of the tightening rod respectively, the side gears are arranged at the upper ends of the tightening rods and can be meshed with intermediate gears on a spring driving rod, the lower ends of the tightening rods are in rotary contact with the base, the side gears are connected with the base through the side vertical rods with spiral grooves, the side gears are sleeved on the side vertical rods, the extension springs are connected between the lower ends of the side gears and the side vertical rods, the two ends of each extension spring are respectively and fixedly connected to the side gears and the side vertical rods, and the lower ends of the side gears are in contact with the damping rods in a quasi-working state; the horizontal length of each steel wire rope when the steel wire ropes are completely tensioned is one half of the net span length between two adjacent tightening devices, and the two steel wire ropes between the two adjacent tightening devices are fixedly connected in a socket buckle or a lock catch or other modes.
The rope guider is of an L-shaped structure, a round hole through which a steel wire rope can pass is formed in the left side of the structure, and the lower side of the structure is sleeved on a spiral groove of a side vertical rod; the side vertical rod is provided with a horizontal round hole, the right side of the side vertical rod is fixedly connected with a compression spring, a locking pin can simultaneously penetrate through the left round hole of the L-shaped structure and the horizontal round hole of the side vertical rod and then is in contact with the right side of the compression spring, the left side of the locking pin is fixedly connected with a steel wire rope, when the steel wire rope is tensioned, the compression spring between the locking pin and the side vertical rod is compressed, the right side of the locking pin is adjacent to a damping rod, when the steel wire rope is disconnected, the locking pin moves towards the right side under the action of the compression spring and further impacts the damping rod, the damping rod rotates around the middle vertical rod, and is separated from the lower end of the side gear along with the deflection of the damping rod, the side gear slides downwards along the side vertical rod under the tension of the extension spring, and finally the side gear is disengaged from the middle gear; the rope guider is screwed in the spiral groove of the side vertical rod, and when the side vertical rod rotates, the rope guider can move downwards along the spiral groove on the side vertical rod.
The middle vertical rod comprises a buckle, a whole vertical rod, a telescopic vertical rod and a ball joint structure, and the whole vertical rod and the telescopic vertical rod can be respectively fastened with the steel wire rope by the buckle to realize fixed connection; the middle lower end of the whole vertical rod is provided with a rotating wheel, the whole vertical rod is divided into an upper section vertical rod and a lower section vertical rod, the upper section vertical rod and the lower section vertical rod are rotatably connected in a certain range in a direction perpendicular to the length direction of a road through the rotating wheel, and the height of the lower section vertical rod is not less than the horizontal interval length of the whole vertical rod; the telescopic vertical rod is formed by sleeving a plurality of sections of vertical rods, the sections of vertical rods are connected in a sliding mode, the length of the stretched vertical rod is equal to the length of the whole vertical rod, and the length of the compressed vertical rod is not more than one half of the projection length of the tightening device perpendicular to the length direction of the road.
The distribution range of the whole upright post in the road length direction is as follows: the horizontal length between the two tightening devices and the distance from the tightening devices is larger than the vertical height of the whole vertical rod.
The distribution range of the telescopic vertical rods in the length direction of the road is as follows: the interval is positioned between the two tightening devices and is not more than the vertical height of the whole vertical rod from the horizontal length of the tightening devices.
The upper end of the ball joint structure is a ball bearing groove, a left gap and a right gap are formed in the ball bearing groove, when the middle upright rod is toppled under the combined action of vehicle impact force and steel wire rope tension, the gaps can guide the toppling angle of the middle upright rod, the lower end of the ball bearing groove is sequentially provided with a nut and a screw, and the nut and the screw are mutually screwed.
The fixed plate can be fixedly connected with the tightening devices at two ends along the length direction of the road, after the fixed plate and the tightening devices are assembled, the horizontal distance between every two adjacent tightening devices is equal to the total length of the two tightening devices after being connected with the steel wire ropes, bolt holes are arranged at intervals along the length direction of the fixed plate, and the bolt holes are screwed with screws at the lower ends of the ball bearing grooves.
The other preferable tightening device comprises a clockwork spring device, a tightening rod, a rope arranger, a steel wire rope, a connecting bridge and a base; the two clockwork spring devices are respectively arranged at the bottom ends of the two tightening rods; the surface of each tightening rod is provided with a spiral groove, the spiral grooves of the tightening rods are screwed with the rope arrangers, the upper ends of the two tightening rods are connected in an overlapping way through a connecting bridge, and the two tightening rods can respectively and independently rotate under the action of respective spring devices; the rope guider is of a U-shaped structure, a round hole through which a steel wire rope can pass is formed in the left side, an opening is not formed in the right side, and the lower side of the rope guider is screwed on the spiral groove of the tightening rod; and the steel wire rope penetrates through the rope guider and then is fixedly connected to the tightening rod.
Preferably, a high polymer material with excellent bending resistance is adopted between the middle vertical rod and the fixing plate to replace a ball joint structure.
Preferably, a weak part which is easy to break is arranged in the middle of the length of each steel wire rope (11) or the steel wire ropes are fixedly connected by using the lock catches after being cut off, and the breaking tension of the steel wire ropes is greater than the tensile strength of the lock catches.
Preferably, when the tightening device leaves a factory, prestress is applied to completely pull out the steel wire rope for limiting, the limiting is removed after the on-site installation is finished, and the quasi-working state is recovered.
Preferably, after the isolating device is installed along the length direction of the road, the habit of driving the vehicle from the near end to the far end on the right side of the isolating device is followed, and the steel wire rope traction connection sequence of the tightening rod is as follows: the near-end right steel wire rope is connected with the far-end left steel wire rope in a traction manner, the far-end right steel wire rope is connected with the next tightening device left steel wire rope in a traction manner, and the near-end right steel wire rope and the far-end left steel wire rope are sequentially connected in a traction manner until the installation is finished.
Preferably, the steel wire rope is subjected to outer layer treatment in a plastic coating or plastic wrapping mode.
The implementation method of the road safety isolation device in the technical scheme comprises the following steps:
the tightening device and the fixing plate are fixedly connected through a buckle or a bolt and the like, the tightening device and the fixing plate are alternately installed and fixed on a road section where the guardrail needs to be installed, and the tightening device is installed at the first section and the terminal of the road section.
Screwing the screw at the lower end of the middle vertical rod into the bolt hole, adjusting the notch on the ball bearing groove of the ball joint structure in place, ensuring that the middle vertical rod does not exceed the side line of the fixing plate along the length direction of the road after toppling along the notch under the tension of the steel wire rope, and then screwing the nut on the screw downwards; if the lower end of the middle upright rod is made of high polymer materials, threads can be made and directly screwed in the bolt holes.
And connecting the steel wire rope on the right side of the tightening device with the steel wire rope on the left side of the next tightening device along the length direction of the road until the installation is finished.
After the upper end of the middle vertical rod is fixedly connected with the steel wire rope buckle in sequence, the limiting of the steel wire rope is relieved, and the accurate working state is recovered.
When the road isolation fence is laid along the length direction of the road, when the isolation fence is impacted by an automobile with the upper part vertical to the length direction of the road, after the steel wire rope is broken, the neutral rods at two sides of the breaking point of the steel wire rope are respectively and sequentially laid towards two sides, so that the isolation fence is prevented from being overturned, broken and seriously deformed integrally, and secondary damage is caused to oppositely running vehicles and personnel; when the isolation fence is impacted by an automobile from the length direction of the upper road, the tightening device is connected with the middle vertical rod and falls down, so that the upper cross rod can be prevented from sliding along the engine and being inserted into the automobile, and the injury to people in the automobile can be prevented.
Drawings
Fig. 1 is a schematic structural view of a tightening device in embodiment 1 of the present invention;
fig. 2 is a schematic structural view of the position of the rope guider in the embodiment 1 of the invention;
FIG. 3 is a schematic view of a damping rod according to embodiment 1 of the present invention;
FIG. 4 is a schematic view of a structure of a middle vertical rod in the present invention;
FIG. 5 is a schematic view of the assembly and structure of the ball joint structure and the fixing plate according to the present invention;
fig. 6 is a schematic structural view of a tightening device in embodiment 2 of the present invention;
FIG. 7 is a schematic view of a position structure of a rope guider in embodiment 2 of the invention;
in the figure: 1-a tightening device; 11-steel wire rope; 12-a clockwork spring device; 13-spring driven rod; 131-a middle vertical bar; 14-tightening rod; 141-side vertical bar; 15-rope guider; 151-vertical circular hole; 152-horizontal circular hole; 16-a locking pin; 17-a damping rod; 181 — side gear; 182 — an intermediate gear; 19-a base; 191 — a connecting bridge; 2-middle upright pole; 21-buckling; 22-ball joint configuration; 221-ball bearing groove; 222-a notch; 223-a nut; 224-screw; 23-arranging the rods; 231-upper section upright stanchion; 232-lower section upright pole; 24-telescopic vertical rod; 25-a rotating wheel; 3, fixing a plate; 31-bolt hole.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples.
Example 1:
referring to fig. 1 to 5, a road safety isolating device includes a tightening device (1), a neutral lever (2) and a fixing plate (3); the left side and the right side of the tightening device (1) along the length direction of a road are respectively provided with a winding steel wire rope (11) capable of applying prestress tension; a buckle (21) is reserved at the upper end of the middle upright rod (2), and a ball joint structure (22) is arranged at the lower end; the two ends of the fixing plate (3) along the length direction of the road can be fixedly connected with the lower end of the tightening device (1), bolt holes (31) are arranged on the fixing plate (3) along the length direction of the road at intervals, and the bolt holes correspond to the lower end of the neutral rod.
The tightening device (1) comprises a clockwork device (12), a clockwork driving rod (13), a tightening rod (14), a steel wire rope (11), a rope arranger (15), a locking pin (16), a damping rod (17) and a base (19); the clockwork spring driving rod (13) comprises a middle vertical rod (131) and a middle gear (182), a clockwork spring device (12) is arranged at the lower end, the middle gear (182) is fixedly connected at the upper end, the clockwork spring device (12) is connected with the middle gear (182) through the middle vertical rod (131), two damping rods (17) are sleeved on the middle vertical rod (131), the damping rods (17) can horizontally rotate around the middle vertical rod (131) but cannot slide up and down, and the clockwork spring device (12) can drive the middle vertical rod (131) to rotate; the tightening rod (14) comprises a side gear (181), a side vertical rod (141) and an extension spring, the left side and the right side of the tightening rod are respectively provided with one set, the upper end of the tightening rod (14) is provided with the side gear (181) which can be meshed with a middle gear (182) on a spring driving rod (13), the lower end of the tightening rod is in rotary contact with the base (19), the side gear (181) is connected with the base (19) through the side vertical rod (141) with a spiral groove, the side gear (181) is sleeved on the side vertical rod (141) and can slide downwards, the extension spring is connected between the lower end of the side gear (181) and the side vertical rod (141), two ends of the extension spring are respectively and fixedly connected to the side gear (181) and the side vertical rod (141), the extension spring is extended when the tightening rod is in a quasi-working state, and the lower end of the side gear (181) is in contact with the damping rod (17); the horizontal length of each steel wire rope (11) when the steel wire ropes are fully tensioned is one half of the net span length between the spring driving rods (13), and the left steel wire rope and the right steel wire rope (11) between the spring driving rods (13) are fixedly connected in a socket buckle or locking buckle mode and the like.
The rope guider (15) is of an L-shaped structure, a vertical round hole (151) through which a steel wire rope (11) can pass is formed in the left side of the structure, and the lower side of the structure is sleeved on a spiral groove of a side vertical rod (141); a horizontal round hole (152) is formed in the side vertical rod (141), a compression spring is fixedly connected to the right side of the side vertical rod (141), a locking pin (16) can simultaneously penetrate through the left side vertical round hole (151) of the L-shaped structure and the horizontal round hole (152) of the side vertical rod (141) and then is in contact with the right side of the compression spring, a steel wire rope (11) is fixedly connected to the left side of the locking pin (16), when the steel wire rope (11) is tensioned, the compression spring between the locking pin (16) and the side vertical rod (141) is compressed, the right side of the locking pin (16) is adjacent to a damping rod (17), when the steel wire rope (11) is disconnected, the locking pin (16) moves towards the right side under the action of the compression spring and further impacts the damping rod (17), the damping rod (17) rotates around the middle vertical rod (131), and is separated from the lower end of the side gear (181) along with the deflection of the damping rod (17), and the side gear (181) slides down along the side vertical rod (141) under the tension of the tension spring, the final side gear (181) is disengaged from the intermediate gear (182); the rope arranging device (15) is screwed in the spiral groove of the side vertical rod (141), and when the side vertical rod (141) rotates, the rope arranging device (15) can move downwards along the spiral groove on the side vertical rod (141).
The middle vertical rod (2) comprises a buckle (21), a whole vertical rod (23), a telescopic vertical rod (24) and a ball joint structure (22), and the buckle (21) can be used for fixedly connecting the whole vertical rod (23), the telescopic vertical rod (24) and the steel wire rope (11) in a buckle manner; the middle lower end of the whole upright rod (23) is provided with a rotating wheel (25), the whole upright rod (23) is divided into an upper section upright rod (231) and a lower section upright rod (232), the upper section upright rod (231) and the lower section upright rod (232) are rotatably connected in a certain range in a direction perpendicular to the length direction of the road through the rotating wheel (25), and the height of the lower section upright rod (232) is not less than the horizontal interval length of the whole upright rod (23); the telescopic vertical rod (24) is formed by sleeving a plurality of sections of vertical rods, the sections of vertical rods are connected in a sliding mode, the length after stretching is equal to that of the whole vertical rod (23), and the length after compression is not more than one half of the projection length of the tightening device (1) in the direction perpendicular to the length direction of the road.
The distribution range of the whole upright rod (23) in the length direction of the road is as follows: is positioned between the two tightening devices (1) and is more than the interval of the vertical height of the whole upright rod (23) from the horizontal length of the tightening devices (1).
The distribution range of the telescopic vertical rod (24) in the length direction of the road is as follows: is positioned between the two tightening devices (1) and is not more than the interval of the vertical height of the whole upright rod (23) from the horizontal length of the tightening devices (1).
A ball bearing groove (221) of the ball joint structure (22) is provided with a left gap (222) and a right gap (222), when the middle upright rod (23) is inclined under the combined action of vehicle impact force and the tensile force of the steel wire rope (11), the gaps (222) can guide the inclination angle of the lower section upright rod (232), and the lower end of the ball bearing groove (221) is sequentially provided with a nut (223) and a screw rod (224).
The fixing plate (3) can be fixedly connected with the tightening devices (1) at two ends along the length direction of a road, after the fixing plate (3) and the tightening devices (1) are assembled, the distance between every two adjacent tightening devices (1) is equal to the total length after the steel wire ropes (11) on the two tightening devices (1) are connected, bolt holes (31) are arranged on the fixing plate (3) at intervals along the length direction, and the bolt holes (31) correspond to screw rods (224) at the lower ends of the ball bearing grooves (221).
Preferably, a high polymer material with excellent bending resistance can be adopted between the middle vertical rod (2) and the fixing plate (3) to replace the ball joint structure (22).
Preferably, a weak part which is easy to break is arranged at the middle position of the length of each steel wire rope (11) or the steel wire ropes are fixedly connected by adopting a lock catch after being cut.
Preferably, the breaking force of the steel wire rope is greater than the tensile strength of the lock catch connection.
Preferably, when the tightening device (1) leaves a factory, prestress is applied to completely pull out the steel wire rope (11) for limiting, and the limiting is released after the on-site installation is finished.
Preferably, after the isolation device is installed along the length direction of the road, the vehicle driving habit is that the right side of the isolation device runs from the near end to the far end, and the traction sequence of the steel wire rope (11) of the tightening rod (14) is as follows: the near-end right-side steel wire rope (11) is connected with the far-end left-side steel wire rope (11) in a traction manner, the far-end right-side steel wire rope (11) is connected with the next tightening device (1) left-side steel wire rope (11) in a traction manner, and the two steel wire ropes are sequentially connected in a traction manner until the installation is finished.
Preferably, the steel wire rope (11) is subjected to outer layer treatment in a plastic coating or plastic wrapping mode.
Example 2:
referring to fig. 4 to 7, a road safety isolating apparatus includes a tightening device (1), a neutral lever (2), and a fixing plate (3); the left side and the right side of the tightening device (1) along the length direction of a road are respectively provided with a winding steel wire rope (11) capable of applying prestress tension; a buckle (21) is reserved at the upper end of the middle upright rod (2), and a ball joint structure (22) is arranged at the lower end; the two ends of the fixing plate (3) along the length direction of the road can be fixedly connected with the lower end of the tightening device (1), bolt holes (31) are arranged on the fixing plate (3) along the length direction of the road at intervals, and the bolt holes are screwed with the screw rod at the lower end of the middle rod.
The tightening device (1) comprises a clockwork device (12), a tightening rod (14), a rope arranger (15), a steel wire rope (11), a connecting bridge (191) and a base (19); the two clockwork spring devices (12) are respectively arranged at the bottom ends of the two tightening rods (14); the surface of each tightening rod (14) is provided with a spiral groove, the spiral grooves of the tightening rods (14) are screwed with a rope guider (15), the upper ends of the two tightening rods (14) are overlapped through a connecting bridge (191), and the two tightening rods (14) can respectively and independently rotate under the action of respective clockwork spring devices (12); the rope guider (15) is of a U-shaped structure, a vertical round hole (151) through which a steel wire rope (11) can pass is formed in the left side, an opening is not formed in the right side, and the lower side of the rope guider is screwed on a spiral groove of the tightening rod (14); the steel wire rope (11) penetrates through the rope guider (15) and then is fixedly connected to the tightening rod (14).
The middle vertical rod (2) comprises a buckle (21), a whole vertical rod (23), a telescopic vertical rod (24) and a ball joint structure (22), and the buckle (21) can be used for fixedly connecting the whole vertical rod (23) and the telescopic vertical rod (24) with the steel wire rope (11) in a buckle mode; the middle lower end of the whole upright rod (23) is provided with a rotating wheel (25), the whole upright rod (23) is divided into an upper section upright rod (231) and a lower section upright rod (232), the upper section upright rod (231) and the lower section upright rod (232) are rotatably connected in a certain range in a direction perpendicular to the length direction of the road through the rotating wheel (25), and the height of the lower section upright rod (232) is not less than the horizontal interval length of the whole upright rod (23); the telescopic vertical rod (24) is formed by sleeving a plurality of sections of vertical rods, the sections of vertical rods are connected in a sliding mode, the length after stretching is equal to that of the whole vertical rod (23), and the length after compression is not more than one half of the projection length of the tightening device (1) in the direction perpendicular to the length direction of the road.
The distribution range of the whole upright rod (23) in the length direction of the road is as follows: is positioned between the two tightening devices (1) and is more than the interval of the vertical height of the whole upright rod (23) from the horizontal length of the tightening devices (1).
The distribution range of the telescopic vertical rod (24) in the length direction of the road is as follows: is positioned between the two tightening devices (1) and is not more than the interval of the vertical height of the whole upright rod (23) from the horizontal length of the tightening devices (1).
A ball bearing groove (221) of the ball joint structure (22) is provided with a left gap (222) and a right gap (222), when the middle upright rod (23) is toppled under the combined action of vehicle impact force and steel wire rope (11), the gaps (222) can guide the toppling angle of the lower upright rod (232), the lower end of the ball bearing groove (221) is sequentially provided with a nut (223) and a screw rod (224), and the nut and the screw rod are screwed together.
The fixing plate (3) can be fixedly connected with the tightening devices (1) at two ends along the length direction of a road, after the fixing plate (3) and the tightening devices (1) are assembled, the distance between every two adjacent tightening devices (1) is equal to the total length after the steel wire ropes (11) on the two tightening devices (1) are connected, bolt holes (31) are arranged on the fixing plate (3) at intervals along the length direction, and the bolt holes (31) correspond to screw rods (224) at the lower ends of the ball bearing grooves (221).
Preferably, a high polymer material with excellent bending resistance can be adopted between the middle vertical rod (2) and the fixing plate (3) to replace the ball joint structure (22).
Preferably, a weak part which is easy to break is arranged at the middle position of the length of each steel wire rope (11) or the steel wire ropes are fixedly connected by adopting a lock catch after being cut.
Preferably, the breaking force of the steel wire rope is greater than the tensile strength of the lock catch connection.
Preferably, when the tightening device (1) leaves a factory, prestress is applied to completely pull out the steel wire rope (11) for limiting, and the limiting is released after the on-site installation is finished.
Preferably, after the isolation device is installed along the length direction of the road, the vehicle driving habit is that the right side of the isolation device runs from the near end to the far end, and the traction sequence of the steel wire rope (11) of the tightening rod (14) is as follows: the near-end right-side steel wire rope (11) is connected with the far-end left-side steel wire rope (11) in a traction manner, the far-end right-side steel wire rope (11) is connected with the next tightening device (1) left-side steel wire rope (11) in a traction manner, and the two steel wire ropes are sequentially connected in a traction manner until the installation is finished.
Preferably, the steel wire rope (11) is subjected to outer layer anticorrosion and antirust treatment in a plastic coating or plastic wrapping mode.
The implementation method of the road safety isolation device in the technical scheme comprises the following steps:
the guardrail mounting device is characterized in that the tightening device (1) is fixedly connected with the fixing plate (3) through a buckle or a bolt and the like, the tightening device (1) and the fixing plate (3) are alternately mounted and fixed on a road section where a guardrail needs to be mounted, and the tightening device (1) is mounted at the first section and the terminal of the road section.
A screw rod (224) at the lower end of the middle upright rod (131) is screwed into the bolt hole (31), a notch (222) on a ball bearing groove (221) of the ball joint structure (22) is adjusted in place, the middle upright rod (131) does not exceed a side line of the fixing plate (3) along the length direction of the road after being inclined along the notch (222) under the tension of the steel wire rope (11), and then a nut (223) on the screw rod (224) is screwed downwards; if the lower end of the middle upright rod (2) is made of high polymer materials, threads can be made and directly screwed in the bolt holes (31).
And (3) the steel wire rope (11) on the right side of the tightening device (1) is fixedly connected with the steel wire rope (11) on the left side of the next tightening device (1) in a traction manner along the length direction of the road, and the steel wire ropes are sequentially connected in a traction manner until the installation is finished.
After the upper end of the middle upright rod (131) is fixedly connected with the steel wire rope (11) in a buckling mode, the limiting of the steel wire rope (11) is released, and the accurate working state is recovered.
Having thus described the invention by way of example and not by way of limitation, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and therefore, the embodiments are to be considered in all respects as illustrative and not restrictive, and all changes coming within the meaning and range of equivalency of the claims are intended to be embraced therein.
Claims (6)
1. A road safety isolation device is characterized by comprising a tightening device, a middle upright rod and a fixing plate; the left side and the right side of the tightening device along the length direction of the road are respectively provided with a winding steel wire rope capable of applying prestress tension; a buckle is reserved at the upper end of the middle upright rod, and the lower end of the middle upright rod is of a ball joint structure; the two ends of the fixing plate along the length direction of the road can be fixedly connected with the lower end of the tightening device, bolt holes are formed in the fixing plate along the length direction of the road at intervals, and the bolt holes are screwed with the screw rod at the lower end of the middle vertical rod.
2. A road safety isolating device according to claim 1, wherein the tightening device comprises a clockwork spring device, a clockwork spring driving rod, a tightening rod, a wire rope, a rope arranger, a locking pin, a damping rod and a base; the spring driving rod comprises a middle vertical rod and a middle gear, a spring device is arranged at the lower end of the spring driving rod, the upper end of the spring driving rod is fixedly connected with the middle gear, the spring device is connected with the middle gear through the middle vertical rod, two damping rods are sleeved on the middle vertical rod, the damping rods can horizontally rotate around the middle vertical rod but cannot slide up and down, and the spring device can drive the middle vertical rod to rotate; the tightening rod comprises a side gear, a side vertical rod and an extension spring, the tightening rod is left and right sleeved with the side gear, the upper end of the tightening rod can be meshed with an intermediate gear on a spring driving rod, the lower end of the tightening rod is in rotary contact with the base, the side gear is connected with the base through the side vertical rod with a spiral groove, the side gear is sleeved on the side vertical rod, the extension spring is connected between the lower end of the side gear and the side vertical rod, and two ends of the extension spring are respectively and fixedly connected to the side gear and the side vertical rod.
3. A road safety isolating device according to claim 1, wherein the tightening device comprises a clockwork, a tightening rod, a rope arranger, a wire rope, a connecting bridge and a base; the two clockwork spring devices are respectively arranged at the bottom ends of the two tightening rods; the surface of each tightening rod is provided with a spiral groove, the spiral grooves of the tightening rods are screwed with the rope guider, the upper ends of the two tightening rods are in lap joint through a connecting bridge, and the two tightening rods can respectively and independently rotate under the action of respective clockwork spring devices.
4. The road safety isolating device according to claim 1, wherein the horizontal length of each of the steel cables when the steel cables are fully tensioned is one half of the net span length between two adjacent tightening devices, and two steel cables between two adjacent tightening devices are fixedly connected through a socket buckle or a lock buckle.
5. The road safety isolating device of claim 1, wherein the middle upright comprises a buckle, a rectifying upright, a telescopic upright and a ball joint structure; the middle lower end of the whole upright rod is provided with a rotating wheel, the whole upright rod is divided into an upper section upright rod and a lower section upright rod, and the upper section upright rod and the lower section upright rod are rotatably connected in a certain range in a direction perpendicular to the length direction of the road through the rotating wheel; the telescopic vertical rod is formed by sleeving a plurality of sections of vertical rods, the sections of vertical rods are connected in a sliding mode, the length of the stretched vertical rod is equal to the length of the whole vertical rod, and the length of the compressed vertical rod is not more than one half of the projection length of the tightening device perpendicular to the length direction of the road.
6. The road safety isolating device according to claim 1, wherein the upper end of the ball joint structure is a ball receiving groove, and the ball receiving groove is provided with a left gap and a right gap, so that when the whole vertical rod is toppled under the combined action of vehicle impact force and steel cable tension, the gaps can guide the toppling angle of the middle vertical rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111606446.5A CN114214984A (en) | 2021-12-26 | 2021-12-26 | Road safety isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111606446.5A CN114214984A (en) | 2021-12-26 | 2021-12-26 | Road safety isolation device |
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| CN114214984A true CN114214984A (en) | 2022-03-22 |
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| CN202111606446.5A Pending CN114214984A (en) | 2021-12-26 | 2021-12-26 | Road safety isolation device |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100090014A (en) * | 2009-02-05 | 2010-08-13 | 우성안전 주식회사 | Guard rail for roads |
| CN105926495A (en) * | 2016-04-26 | 2016-09-07 | 杜玲玲 | Security partition fence used for road |
-
2021
- 2021-12-26 CN CN202111606446.5A patent/CN114214984A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100090014A (en) * | 2009-02-05 | 2010-08-13 | 우성안전 주식회사 | Guard rail for roads |
| CN105926495A (en) * | 2016-04-26 | 2016-09-07 | 杜玲玲 | Security partition fence used for road |
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