CN112211135A - Energy-absorbing impact-resistant road guardrail for smart city - Google Patents
Energy-absorbing impact-resistant road guardrail for smart city Download PDFInfo
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- CN112211135A CN112211135A CN202010925071.8A CN202010925071A CN112211135A CN 112211135 A CN112211135 A CN 112211135A CN 202010925071 A CN202010925071 A CN 202010925071A CN 112211135 A CN112211135 A CN 112211135A
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- waveform
- guard
- collision
- connecting seat
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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
- E01F15/0407—Metal rails
- E01F15/0415—Metal rails with pivoting members
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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
- E01F15/0407—Metal rails
- E01F15/0423—Details of rails
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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
- E01F15/0492—Provisions for guiding in combination with rails, e.g. tire-gutters
Abstract
The invention discloses an energy-absorbing type impact-resistant road guardrail for a smart city, and particularly relates to the field of the smart city. According to the invention, the deceleration buffer mechanism is arranged, the rotation of the collision energy absorption mechanism caused by accidental collision of the vehicle is utilized to realize redirection of vehicle collision, the kinetic energy of the vehicle is slowly reduced by utilizing the rotational friction of the collision energy absorption mechanism between the vehicle and the guardrail, and the outer protective layer structure is utilized to avoid high temperature and spark during friction, thus avoiding the fire and explosion accidents of the vehicle and improving the safety performance of the protective guard.
Description
Technical Field
The invention relates to the technical field of smart cities, in particular to an energy-absorbing type impact-resistant road guardrail for a smart city.
Background
Under the background of the great era of the interconnection of everything, the novel smart city takes the main aims of serving people for full time, efficient and orderly city management, open and co-fused data sharing, green and open source of economic development and safe and clear network space as well as promotes the deep fusion and iterative evolution of the new generation of information technology and city modernization through system planning, information leading and innovation, realizes the coordinated development of the country and the city, and combines road supervision and the Internet of things to realize the intelligent, efficient and safe smart city.
However, the speed of the construction of the Chinese roads cannot keep up with the rapid increase of the reserved quantity of the automobiles, the actual traffic load of the first-line ultra-large city is close to or even exceeds the design value, and how to improve the utilization rate of the existing roads is the first choice for solving the traffic jam.
The road guardrail is also called as a galvanized plastic-sprayed steel guardrail for urban traffic, is beautiful and novel, easy to install, safe and reliable, and low in price, and can be arranged among different lanes to ensure the well-known order of vehicles coming and going, thereby playing the roles of isolation and protection; however, the traditional guardrail is fragile and can only play a role in visual isolation, when a traffic accident occurs, a vehicle can crash the guardrail and even fly to the opposite lane, and great harm is caused; sometimes, the broken guardrail can be inserted into the vehicle body, which causes great damage to the vehicle and even endangers the life safety of the driver; in addition, when the vehicle rubs against the guardrail, high temperature and sparks are generated, and vehicle fire and explosion are possibly caused, so that great potential safety hazards exist.
Two independent functions can be realized by means of modern road guardrails, the two functions are mutually restricted to a certain extent, urban traffic main roads, green isolation belts in the middle of expressways, bridges, secondary roads, village roads, toll gates of all roads and the like are used for isolation, and secondly, the guardrail preferably has enough tensile strength in the longitudinal direction, so that a vehicle impacting on a certain section in the middle of the guardrail at an oblique angle cannot rush out of the guardrail but is reoriented along the length direction of the guardrail, and the function requires that the guardrail has quite high tensile strength.
But the smart road guardrail for smart city that has shock-resistant function on the existing market is not only complicated in structure, and the function is single moreover, and among the current road guardrail technique, the vehicle is not convenient for cushion the vehicle after striking road guardrail, and in addition, the fence can preferably decelerate the vehicle that strikes at its tip with a suitable deceleration rate to can not exert a very high deceleration to the vehicle, avoid the guardrail to pierce vehicle inside.
Therefore, it is highly desirable to provide an energy-absorbing impact-resistant road guardrail for smart cities, which can reduce traffic accident injuries.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide an energy-absorbing type impact-resistant road guardrail for a smart city, wherein a deceleration buffer mechanism is provided, the rotation of the impact energy-absorbing mechanism caused by an accidental impact of a vehicle is used to redirect the vehicle impact, the kinetic energy of the vehicle is slowly reduced by using the rotational friction of the impact energy-absorbing mechanism between the vehicle and the guardrail, the flow limiting effect of an internal damping fluid inside a deceleration roller mechanism during the rotation of the impact energy-absorbing mechanism is used to slow down the mechanical energy of the vehicle and the impact protection outer cylinder, so as to slow down the kinetic energy of the vehicle, and the deceleration and damping effect is more moderate, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the energy-absorbing impact-resistant road guardrail for the smart city comprises an installation stand column and a waveform protective guard, wherein a fixed sleeve seat is fixedly sleeved on the surface of the installation stand column, a supporting and connecting seat is fixedly installed on the inner side of the fixed sleeve seat, an impact energy-absorbing mechanism is fixedly installed on the top surface of the supporting and connecting seat, a deformation connecting lug seat is fixedly installed on the inner side of the waveform protective guard, a top connecting seat is fixedly installed on the inner side of the deformation connecting lug seat, the bottom surface of the top connecting seat is fixedly connected with the top end of the impact energy-absorbing mechanism, a protective layer is fixedly sleeved on the outer side of the impact energy-absorbing mechanism, and the inner side of the waveform protective guard is fixedly;
the end part of the waveform protective guard is fixedly sleeved with an inner clamping and connecting mechanism, the inner clamping and connecting mechanism comprises an outer protection protecting block, an inner support resisting block and a retaining screw rod, the inner sides of the outer protection protecting block and the inner support resisting block are provided with grooves matched with the waveform protective guard, the inner sides of the outer protection protecting block and the inner support resisting block are respectively butted with two sides of the waveform protective guard, the inner side of the outer protection protecting block is fixedly pasted with an anti-dropping gasket, and the end part of the retaining screw rod penetrates through the surfaces of the inner support resisting block and the waveform protective guard to be in threaded connection with one side of the outer protection protecting block;
the collision energy absorption mechanism comprises a collision protection outer cylinder, a speed reduction roller mechanism, a deformation corrugated sleeve, an appearance variable cylinder shell and a fixed shaft, wherein the deformation corrugated sleeve is fixedly sleeved on the outer side of the collision protection outer cylinder;
one side of the hydraulic speed reduction blocking edge is of a vertical plane structure, the other side of the hydraulic speed reduction blocking edge is of a cambered surface structure, a sealing abutting edge is arranged on the outer side of the hydraulic speed reduction blocking edge, the outer side of the sealing abutting edge is fixedly connected with the inner side of the collision protection outer cylinder, grooves are formed in the inner side of the hydraulic speed reduction blocking edge and the outer side of the movement blocking strip, piston strips are embedded and installed in the grooves, the outer sides of the piston strips are in interference fit with the side face of the fixed rotating strand and the inner side of the collision protection outer cylinder respectively, and a plurality of convex teeth are arranged on the inner side of the flow-limiting speed reduction hole and are distributed on the inner;
the outer side of the fixed shaft is rotatably sleeved with a mechanical sealing element, the upper end and the lower end of the collision protection outer barrel are provided with through holes and fixedly provided with sealing shaft sleeves, the upper end and the lower end of the fixed shaft are embedded with anti-rotation pin rods, and the supporting connecting seat and the top connecting seat are fixedly sleeved at the upper end and the lower end of the fixed shaft.
In a preferred embodiment, the number of the wave-shaped guard rails is two, the wave-shaped guard rails are symmetrically arranged on two sides of the top connecting seat, and the wave-shaped guard rails are in a corrugated structure; the diameter of the collision energy absorption mechanism is larger than the arrangement distance of the waveform protective guards on the two sides.
In a preferred embodiment, the inner clamping and connecting mechanism is arranged at the end of the wave-shaped guard rail, the outer side of the outer protection block is in a circular arc blunt structure, and the wave-shaped guard rail and the inner clamping and connecting mechanism are steel members.
In a preferred embodiment, the number of the mounting posts is several, the mounting posts are uniformly distributed on the inner side of the wave-shaped guard rail, and the mounting posts are in a hollow circular tube structure.
In a preferred embodiment, the deformation ripple cover is formed by bending an elastic metal strip, the outer deformation shell is fixedly sleeved outside the deformation ripple cover, the outer deformation shell is a high polymer plastic component, the protective layer is a rubber component, and the outer side of the protective layer is of a frosted surface structure.
In a preferred embodiment, the number of the flow-limiting decelerating holes is a plurality of flow-limiting decelerating holes which are vertically and uniformly distributed on the side surface of the hydraulic decelerating blocking edge, the flow-limiting decelerating holes penetrate through the surface of the hydraulic decelerating blocking edge, and the cambered surface structure of the hydraulic decelerating blocking edge is tangent to the outer side of the fixed rotating strand in a counterclockwise direction.
In a preferred embodiment, the inner side of the sealing sleeve and the outer side of the mechanical seal are in mutual abutment, and the sealing ring is arranged on the inner side of the sealing sleeve.
In a preferred embodiment, the supporting and connecting base and the top connecting base are in a C-shaped tool steel structure, and the outer sides of the mounting upright posts, the wave-shaped guard rails, the supporting and connecting base and the top connecting base are coated with anti-rust paint layers.
The invention has the technical effects and advantages that:
1. according to the invention, the deceleration buffer mechanism is arranged, the rotation of the collision energy absorption mechanism caused by accidental collision of the vehicle is utilized to realize redirection of vehicle collision, the kinetic energy of the vehicle is slowly reduced by utilizing the rotational friction of the collision energy absorption mechanism between the vehicle and the guardrail, and the outer protective layer structure is utilized to avoid high temperature and spark during friction, thus avoiding the fire and explosion accidents of the vehicle and improving the safety performance of the protective guard;
2. according to the invention, by arranging the damping rotation buffering structure, the motion mechanical energy of the vehicle and the collision protection outer cylinder is slowed down by utilizing the current limiting effect of the internal damping liquid in the decelerating roller mechanism when the collision energy absorption mechanism rotates, so that the kinetic energy of the vehicle is slowed down, the deceleration energy absorption effect is more gentle by adopting a damping deceleration mode, the personnel shock damage caused by the overlarge deceleration inertia of the vehicle body is prevented, and the protection performance is further improved;
3. according to the invention, through the internal clamping connection and the deformation energy absorption structure, the waveform protective guard is connected continuously by using the internal clamping connection mechanism, the easily-broken joint is protected at the inner side of the connection structure, the protective guard is prevented from being inserted into the vehicle body when an accident happens, and the deformation of the deformation corrugated sleeve and the protection layer structure is used for realizing the primary absorption of collision kinetic energy, so that the vehicle body and the protective guard are protected together, and the maintenance workload of the protective guard is reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic top view of the present invention.
FIG. 3 is a schematic view of the impact energy absorbing mechanism of the present invention.
Fig. 4 is a schematic view of the structure of the collision protection outer cylinder of the invention.
FIG. 5 is a schematic view of the decelerating fixed roll structure of the present invention.
Fig. 6 is a schematic structural diagram of the invention at a in fig. 5.
Fig. 7 is a schematic structural view of the internal clamping connection mechanism of the present invention.
The reference signs are: 1. mounting the upright post; 2. a waveform guard rail; 3. a collision energy-absorbing mechanism; 4. an inner clamping connection mechanism; 5. supporting the connecting seat; 6. a top connection base; 7. a protective layer; 31. a collision protection outer cylinder; 32. a retard roller mechanism; 33. a deformable corrugated sleeve; 34. the shape of the cylinder shell is changed; 35. fixing a fixed shaft; 36. a movement barrier strip; 311. sealing the shaft sleeve; 321. fixing the strand; 322. hydraulic deceleration blocking edge; 323. a flow-limiting speed-reducing orifice; 324. sealing and abutting; 351. a mechanical seal; 352. an anti-rotation pin; 41. an outer protective protection block; 42. an inner supporting block; 43. a holding screw; 44. an anti-drop gasket; 51. a fixed sleeve seat; 61. the deformation is connected with the ear seat.
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.
1-7, an energy-absorbing impact-resistant road guardrail for a smart city, as shown in the accompanying drawings, comprises a mounting upright post 1 and a waveform guard rail 2, wherein a fixed sleeve seat 51 is fixedly sleeved on the surface of the mounting upright post 1, a supporting and connecting seat 5 is fixedly installed on the inner side of the fixed sleeve seat 51, an impact energy-absorbing mechanism 3 is fixedly installed on the top surface of the supporting and connecting seat 5, a deformation connecting lug seat 61 is fixedly installed on the inner side of the waveform guard rail 2, a top connecting seat 6 is fixedly installed on the inner side of the deformation connecting lug seat 61, the bottom surface of the top connecting seat 6 is fixedly connected with the top end of the energy-absorbing mechanism 3, a protective layer 7 is fixedly sleeved on the outer side of the impact energy-absorbing mechanism 3, and;
an inner clamping and connecting mechanism 4 is fixedly sleeved at the end part of the waveform protective guard 2, the inner clamping and connecting mechanism 4 comprises an outer protection block 41, an inner support abutting block 42 and a retaining screw 43, grooves matched with the waveform protective guard 2 are formed in the inner sides of the outer protection block 41 and the inner support abutting block 42, the inner sides of the outer protection block 41 and the inner support abutting block 42 are respectively abutted against the two sides of the waveform protective guard 2, an anti-dropping gasket 44 is fixedly adhered to the inner side of the outer protection block 41, and the end part of the retaining screw 43 penetrates through the surfaces of the inner support abutting block 42 and the waveform protective guard 2 to be in threaded connection with one side of the outer protection;
the collision energy-absorbing mechanism 3 comprises a collision protection outer cylinder 31, a speed reducing roller mechanism 32, a deformation corrugated sleeve 33, an appearance variable cylinder shell 34 and a fixed shaft 35, the deformation corrugated sleeve 33 is fixedly sleeved on the outer side of the collision protection outer cylinder 31, the collision protection outer cylinder 31 is rotatably sleeved on the outer side of the speed reducing roller mechanism 32, the speed reducing roller mechanism 32 comprises a fixed rotating strand 321 and a hydraulic speed reducing blocking edge 322, the fixed rotating strand 321 is rotatably sleeved on the inner side of the hydraulic speed reducing blocking edge 322, a plurality of flow-limiting speed reducing holes 323 are formed in the inner side of the hydraulic speed reducing blocking edge 322, damping liquid is filled in the collision protection outer cylinder 31, a moving blocking strip 36 is fixedly installed on one side of the fixed rotating strand 321, and the outer side of the moving blocking strip 36 is in sliding and abutting;
one side of the hydraulic deceleration blocking edge 322 is of a vertical plane structure, the other side of the hydraulic deceleration blocking edge 322 is of an arc surface structure, the outer side of the hydraulic deceleration blocking edge 322 is provided with a sealing abutting edge 324, the outer side of the sealing abutting edge 324 is fixedly connected with the inner side of the collision protection outer cylinder 31, the inner side of the hydraulic deceleration blocking edge 322 and the outer side of the movement blocking strip 36 are provided with grooves and are embedded with piston strips, the outer sides of the piston strips are in interference fit with the side surface of the fixed rotating strand 321 and the inner side of the collision protection outer cylinder 31 respectively, and the inner side of the flow-limiting deceleration hole 323 is provided with a plurality of convex teeth which are relatively distributed on the inner side of;
the mechanical sealing element 351 is sleeved on the outer side of the fixed shaft 35 in a rotating mode, through holes are formed in the upper end and the lower end of the collision protection outer barrel 31, the sealing shaft sleeve 311 is fixedly installed on the upper end and the lower end of the fixed shaft 35, anti-rotation pin rods 352 are installed at the upper end and the lower end of the fixed shaft 35 in an embedded mode, and the supporting connecting seat 5 and the top connecting seat 6 are fixedly sleeved on the upper end and the.
The implementation mode is specifically as follows: by arranging the speed reduction buffer mechanism, the rotation of the collision energy absorption mechanism 3 caused by the accidental collision of the vehicle is utilized to realize the redirection of the vehicle collision, the kinetic energy of the vehicle is slowly reduced by utilizing the rotational friction of the collision energy absorption mechanism 3 between the vehicle and the guardrail, and the generation of high temperature and spark is avoided by utilizing the protective layer structure at the outer side during the friction, thereby avoiding the fire hazard and explosion accidents of the vehicle and improving the safety performance of the protective guard; in addition, the damping rotation buffering structure is arranged, the motion mechanical energy of the vehicle and the collision protection outer cylinder 31 is slowed down by utilizing the flow limiting effect of the internal damping liquid in the speed reducing roller mechanism 32 when the collision energy absorption mechanism 3 rotates, the kinetic energy of the vehicle is slowed down, the speed reducing and energy absorption effects are more smooth by the damping speed reducing mode, the personnel shock damage caused by the overlarge vehicle body speed reducing inertia is prevented, and the protection performance is further improved.
Referring to the accompanying drawings 1 and 2 in the specification, the number of the waveform protective guards 2 is two, the waveform protective guards 2 are symmetrically arranged on two sides of the top connecting seat 6, the waveform protective guards 2 are in a corrugated structure, and the diameter of the collision energy absorption mechanism 3 is larger than the arrangement distance of the waveform protective guards 2 on the two sides, so that the collision energy absorption mechanism 3 can be firstly contacted with a vehicle after the vehicle collides, the vehicle moves to be guided again, and the protective guards are protected.
Referring to the accompanying drawings 2 and 7 in the specification, the inner clamping and connecting mechanism 4 is arranged at the end of the corrugated protective guard 2, the outer side of the outer protective guard 41 is in a circular arc blunt structure, the corrugated protective guard 2 and the inner clamping and connecting mechanism 4 are steel members, and the easy-to-break joint is protected at the inner side of the connecting structure to prevent the protective guard from being inserted into the vehicle body in case of an accident.
Referring to the attached drawing 1 of the specification, the number of the installation upright posts 1 is several, the installation upright posts 1 are uniformly distributed on the inner side of the waveform guard rail 2, and the installation upright posts 1 are in a hollow circular tube structure, so that part of collision potential energy can be absorbed through the bending deformation of the hollow circular tube after a vehicle is violently collided at a high speed.
Referring to the attached fig. 4 in the specification, the deformed corrugated sleeve 33 is formed by bending an elastic metal strip, the shape-changing cylinder shell 34 is fixedly sleeved outside the deformed corrugated sleeve 33, the shape-changing cylinder shell 34 is a high polymer plastic component, the protective layer 7 is a rubber component, and the outer side of the protective layer 7 is of a frosted surface structure, so that the friction force between the protective layer 7 and a vehicle is increased, and the deceleration effect on the vehicle is improved.
Referring to the description and shown in fig. 3, 5 and 6, the number of the flow-limiting decelerating holes 323 is a plurality of flow-limiting decelerating holes which are vertically and uniformly distributed on the side surface of the hydraulic decelerating barrier edge 322, the flow-limiting decelerating holes 323 penetrate through the surface of the hydraulic decelerating barrier edge 322, the cambered surface structure of the hydraulic decelerating barrier edge 322 is tangent to the outer side of the fixed rotating strand 321 anticlockwise, and the damping fluid is used for limiting the speed at the inner side of the flow-limiting decelerating holes 323 to realize the potential energy absorption of the hedging collision protection outer cylinder 31.
The inner side of the seal sleeve 311 and the outer side of the mechanical seal 351 are in contact with each other, and a seal ring is provided inside the seal sleeve 311, thereby improving the sealing effect of the collision protection outer cylinder 31.
Wherein, supporting connection seat 5 and top connecting seat 6 are C font instrument steel construction, and the outside spraying of installation stand 1, wave form rail guard 2, supporting connection seat 5 and top connecting seat 6 has anti-rust paint layer, improves the structural strength and the life of this rail guard.
The working principle of the invention is as follows:
installation and construction: selecting a mounting position, inserting the mounting upright posts 1 into the ground at equal intervals through a pile driver for mounting and fixing, fixing the waveform protective guard 2 through screws, and respectively mounting, assembling and impacting the energy absorbing mechanism 3 by using the fixed sleeve seats 51 and the deformation connecting lug seats 61 to support the connecting seats 5 and the top connecting seats 6, wherein when continuously laying, the end parts of the adjacent waveform protective guards 2 are sleeved on the inner sides by using the outer protective protection blocks 41 and the inner support resisting blocks 42 for continuous mounting;
energy absorption and protection: the vehicle which impacts a certain section of the middle part of the guardrail at a certain oblique angle in the lateral direction of the vehicle absorbs energy through the deformation of the deformation corrugated sleeve 33 and the protection layer 7, so that the vehicle body is prevented from being damaged too much, the impact protection outer barrel 31 is driven to rotate through the lateral friction with the protection layer 7, the impact protection outer barrel 31 drives the hydraulic speed reduction baffle edge 322 to rotate along the outer side of the fixed rotating strand 321 in the rotating process, so that damping liquid on one side is extruded through the hydraulic speed reduction baffle edge 322, the damping liquid passes through the inside of the current-limiting speed reduction hole 323 and then is blocked to enable the rotation of the impact protection outer barrel 31 to absorb energy, the vehicle absorbs energy through the friction energy absorption, the impact potential energy is reduced, the vehicle is prevented from impacting out of the guardrail, the vehicle is enabled to be reoriented to move along the length direction of the guardrail, and the impact buffering is sequentially performed through the plurality of, the damage of traffic accidents is reduced until the vehicle stops moving;
when a vehicle impacts the joint of the waveform protective guard 2, the inner clamping and connecting mechanism 4 is used for protecting to prevent the protective guard from being broken and penetrated into the vehicle to cause huge casualties, and when the impact force is high, energy absorption and buffering can be performed through the deformation of the deformation connecting lug seat 61 and the mounting upright post 1, so that the protection strength is improved; after a traffic accident happens, manual repair is carried out, and the collision energy absorption mechanism 3 is rotated to restore and repair.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (8)
1. The utility model provides a wisdom city is with energy-absorbing formula resistant clash road guardrail, includes installation stand (1) and waveform rail guard (2), its characterized in that: the surface of the mounting upright post (1) is fixedly sleeved with a fixed sleeve seat (51), the inner side of the fixed sleeve seat (51) is fixedly provided with a support connecting seat (5), the top surface of the support connecting seat (5) is fixedly provided with an impact energy-absorbing mechanism (3), the inner side of the waveform guard rail (2) is fixedly provided with a deformation connecting lug seat (61), the inner side of the deformation connecting lug seat (61) is fixedly provided with a top connecting seat (6), the bottom surface of the top connecting seat (6) is fixedly connected with the top end of the impact energy-absorbing mechanism (3), the outer side of the impact energy-absorbing mechanism (3) is fixedly sleeved with a protective layer (7), and the inner side of the waveform guard rail (2) is fixedly connected with the top end of the outer side of the mounting;
the end part of the waveform protective guard (2) is fixedly sleeved with an inner clamping and connecting mechanism (4), the inner clamping and connecting mechanism (4) comprises an outer protection block (41), an inner support abutting block (42) and a retaining screw rod (43), the inner sides of the outer protection block (41) and the inner support abutting block (42) are provided with grooves matched with the waveform protective guard (2), the inner sides of the outer protection block (41) and the inner support abutting block (42) are respectively abutted against the two sides of the waveform protective guard (2), the inner side of the outer protection block (41) is fixedly adhered with an anti-falling gasket (44), and the end part of the retaining screw rod (43) penetrates through the surfaces of the inner support abutting block (42) and the waveform protective guard (2) to be in threaded connection with one side of the outer protection block (41);
the collision energy-absorbing mechanism (3) comprises a collision protection outer cylinder (31), a speed reducing roller mechanism (32), a deformation corrugated sleeve (33), an appearance variable cylinder shell (34) and a fixed dead axle (35), the deformation corrugated sleeve (33) is fixedly sleeved on the outer side of the collision protection outer cylinder (31), the collision protection outer cylinder (31) is rotatably sleeved on the outer side of the speed reducing roller mechanism (32), the decelerating roller mechanism (32) comprises a fixed rotating strand (321) and a hydraulic decelerating edge (322), the fixed rotating strand (321) is rotatably sleeved on the inner side of the hydraulic speed reduction retaining edge (322), the inner side of the hydraulic speed-reducing blocking edge (322) is provided with a plurality of current-limiting speed-reducing holes (323), damping liquid is filled in the collision protection outer cylinder (31), a moving barrier strip (36) is fixedly arranged on one side of the fixed rotating strand (321), the outer side of the moving barrier strip (36) is in sliding contact with the inner side of the collision protection outer cylinder (31);
one side of the hydraulic speed reduction blocking edge (322) is of a vertical plane structure, the other side of the hydraulic speed reduction blocking edge (322) is of an arc surface structure, a sealing abutting edge (324) is arranged on the outer side of the hydraulic speed reduction blocking edge (322), the outer side of the sealing abutting edge (324) is fixedly connected with the inner side of the collision protection outer barrel (31), grooves are formed in the inner side of the hydraulic speed reduction blocking edge (322) and the outer side of the movement blocking strip (36) and are embedded with piston strips, the outer sides of the piston strips are in interference fit with the side face of the fixed rotating strand (321) and the inner side of the collision protection outer barrel (31) respectively, and a plurality of convex teeth are arranged on the inner side of the current-limiting speed reduction hole (323) and are distributed on the inner side of the current-limiting speed reduction;
mechanical seal (351) have been cup jointed in the outside rotation of fixed dead axle (35), through-hole and fixed mounting have been seted up at the upper and lower both ends that collide protection urceolus (31) have sealed axle sleeve (311), the upper and lower both ends embedding of fixed dead axle (35) is installed and is prevented changeing pin pole (352), support connecting seat (5) and top connecting seat (6) are fixed cup joints in the upper and lower both ends of fixed dead axle (35).
2. The energy-absorbing impact-resistant road guardrail for the smart city as claimed in claim 1, wherein: the number of the waveform guard rails (2) is two, the waveform guard rails (2) are symmetrically arranged on two sides of the top connecting seat (6), and the waveform guard rails (2) are of a corrugated structure; the diameter of the collision energy absorption mechanism (3) is larger than the arrangement distance of the waveform protective guards (2) on the two sides.
3. The energy-absorbing impact-resistant road guardrail for the smart city as claimed in claim 1, wherein: the inner clamping and connecting mechanism (4) is arranged at the end part of the waveform protective guard (2), the outer side of the outer protective guard block (41) is of a circular arc blunt structure, and the waveform protective guard (2) and the inner clamping and connecting mechanism (4) are steel components.
4. The energy-absorbing impact-resistant road guardrail for the smart city as claimed in claim 1, wherein: the quantity of installation stand (1) is a plurality of, installation stand (1) is evenly distributed in the inboard of wave form rail guard (2), installation stand (1) is hollow pipe structure.
5. The energy-absorbing impact-resistant road guardrail for the smart city as claimed in claim 1, wherein: deformation ripple cover (33) are the formation of buckling of elastic metal strip, the appearance becomes the fixed outside of cup jointing in deformation ripple cover (33) of shell (34), outer deformation shell (34) are high polymer plastics material component, inoxidizing coating (7) are the rubber material component, the outside of inoxidizing coating (7) is dull polish matte structure.
6. The energy-absorbing impact-resistant road guardrail for the smart city as claimed in claim 1, wherein: the quantity of current-limiting speed reducing hole (323) be a plurality of and be vertical evenly arrange with the side that hydraulic pressure speed reduction kept off along (322), current-limiting speed reducing hole (323) run through the surface that hydraulic pressure speed reduction kept off along (322), the cambered surface structure that hydraulic pressure speed reduction kept off along (322) is anticlockwise tangent with the outside of fixed commentaries on classics thigh (321).
7. The energy-absorbing impact-resistant road guardrail for the smart city as claimed in claim 1, wherein: the inner side of the sealing shaft sleeve (311) is abutted against the outer side of the mechanical sealing element (351), and a sealing ring is arranged on the inner side of the sealing shaft sleeve (311).
8. The energy-absorbing impact-resistant road guardrail for the smart city as claimed in claim 1, wherein: support connecting seat (5) and top connecting seat (6) are C font instrument steel construction, the outside spraying of installation stand (1), wave form rail guard (2), support connecting seat (5) and top connecting seat (6) has the anti rust paint layer.
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| CN202010925071.8A CN112211135B (en) | 2020-09-06 | 2020-09-06 | Energy-absorbing impact-resistant road guardrail for smart city |
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| CN113308992A (en) * | 2021-06-21 | 2021-08-27 | 韩德旺 | Vehicle buffering safety protective guard for bridge protection |
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