CN117888443A - Anti-collision protective fence for road and bridge - Google Patents
Anti-collision protective fence for road and bridge Download PDFInfo
- Publication number
- CN117888443A CN117888443A CN202410288106.XA CN202410288106A CN117888443A CN 117888443 A CN117888443 A CN 117888443A CN 202410288106 A CN202410288106 A CN 202410288106A CN 117888443 A CN117888443 A CN 117888443A
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- collision
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- blocking
- plate
- pressure release
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- 230000001681 protective effect Effects 0.000 title claims abstract description 31
- 230000000903 blocking effect Effects 0.000 claims abstract description 104
- 238000013016 damping Methods 0.000 claims description 34
- 230000007246 mechanism Effects 0.000 claims description 30
- 238000004891 communication Methods 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 18
- 239000010720 hydraulic oil Substances 0.000 claims description 18
- 238000001125 extrusion Methods 0.000 claims description 15
- 238000010008 shearing Methods 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 4
- 241000252254 Catostomidae Species 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 230000003313 weakening effect Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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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 discloses an anti-collision protective fence for roads and bridges, and relates to the technical field of road and bridge protective fences. The invention comprises a plurality of support bottom plates; the support frame part is used for integrally supporting the anti-collision protective fence; the pressure release anti-collision part comprises two pushing side plates which are slidably arranged among the plurality of warning guardrails; the blocking anti-collision part comprises two connecting guide rods fixedly arranged between the two pushing side plates; and the positioning and locking part comprises a fixing frame fixedly arranged on the lower warning guardrail. The advantages are that: the vehicle can be subjected to targeted anti-collision protection according to different impact forces, and through utilization and conversion of the impact force, the multi-stage blocking anti-collision modes such as pressure release buffering, high-strength blocking, and rigid stopping can be realized according to the different impact forces, so that the vehicle can be effectively prevented from rushing out of the road or the bridge to cause larger harm.
Description
Technical Field
The invention relates to the technical field of road and bridge protective barriers, in particular to an anti-collision protective barrier for a road and bridge.
Background
The anti-collision protection fence is arranged on the road and bridge and is used as a necessary facility on the expressway and the bridge, and is mainly used for anti-collision protection of vehicles on the road and bridge, so that the vehicles are prevented from rushing out of the road and bridge due to overlarge impact force when collision occurs, and the life safety of a driver is improved;
the anti-collision protection fence on the existing road and bridge has various patterns, for example, chinese patent application No. CN202311467840.4 discloses a multifunctional road and bridge anti-collision protection fence, which comprises: the device comprises a first contact surface, a second contact surface, a third contact surface, a support frame and a buffer device; the first contact surface and the second contact surface are fixedly connected to the third contact surface, the support frame is connected with the contact surface through the first buffer plate, the second buffer plate, the third buffer plate and the fourth buffer plate, and the buffer device comprises: the device comprises a buffer device shell, a first spring, a sliding block, a limiting block, a locking piece and a releasing piece;
although the anti-collision protective fence can play a role in anti-collision protection to a certain extent, the anti-collision protective fence can perform blocking protection in a multistage elastic deformation mode, a larger reaction force can be generated after the anti-collision protective fence is compressed in an elastic buffering mode, the reaction force can act on a vehicle reversely, larger secondary damage can be caused to the vehicle, the actual anti-collision protective effect is poor, and the anti-collision protective fence has certain limitation;
therefore, there is a need to design a crash barrier for roads and bridges to solve the above problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an anti-collision protection fence for roads and bridges, which solves the problems in the background art.
In order to achieve the above purpose, the invention is realized by the following technical scheme: an anti-collision protection fence for roads and bridges comprises a plurality of supporting bottom plates;
the anti-collision guardrail comprises a supporting frame part and a plurality of warning guardrails, wherein the supporting frame part is used for integrally supporting the anti-collision guardrails, the supporting frame part comprises a plurality of supporting columns fixedly installed on a plurality of supporting bottom plates, each supporting bottom plate is fixedly installed on the ground through a plurality of fastening bolts, side guardrails are fixedly installed between two groups of supporting columns in the vertical direction, and two warning guardrails are fixedly installed between two groups of supporting columns in the horizontal direction;
the pressure release anti-collision part comprises two pushing side plates which are slidably arranged among a plurality of warning guardrails, an anti-collision square plate is slidably arranged between the two pushing side plates through two square plate moving grooves, a guide mechanism is arranged on the anti-collision square plate, two pushing guardrails are slidably arranged between the two pushing side plates through a plurality of moving sliding grooves, and a pressure release mechanism is arranged between the two pushing guardrails and the anti-collision square plate;
the pressure release mechanism comprises a plurality of middle position interception plates fixedly arranged between two pushing railings, two pressure release cylinders are fixedly arranged on each middle position interception plate, and an energy absorption structure is arranged on each pressure release cylinder;
preferably, the energy absorbing structure comprises a first piston disc slidably arranged in the pressure release cylinder, air is filled between the pressure release cylinder and the first piston disc, a pressure release spring rod is fixedly arranged on the first piston disc, and one end, far away from the first piston disc, of the pressure release spring rod is fixedly arranged on the anti-collision square plate;
the blocking anti-collision part comprises two connecting guide rods fixedly arranged between the two pushing side plates, and a plurality of blocking disks are arranged on the two connecting guide rods through a plurality of groups of blocking mechanisms;
the positioning and locking part comprises a fixed frame fixedly installed on the lower warning guardrail, a transmission roller shaft is rotatably installed on the fixed frame, a driving mechanism is installed between the transmission roller shaft and two pushing side plates, a plurality of blocking positioning drills are fixedly installed on the transmission roller shaft, and a shearing mechanism is installed between each pushing side plate and the corresponding side guard rail.
Preferably, the guiding mechanism comprises a built-in groove formed in the anti-collision square plate, a plurality of guiding rollers are rotatably mounted in the built-in groove, an anti-collision guiding barrel is fixedly mounted on each guiding roller, and anti-collision rubber columns are fixedly mounted on two supporting columns located on the outer side.
Preferably, the blocking mechanism comprises a plurality of blocking elbows fixedly mounted on the connecting guide rod, a fixed box is fixedly mounted on the blocking elbows together, the blocking elbows are communicated with the fixed box, and damping hydraulic oil is filled in each blocking elbows and the fixed box;
and each blocking bent pipe is internally provided with a piston inner push rod in a sliding manner, each piston inner push rod is matched with the pushing railing, a piston push disc is slidably arranged in the fixed box, the blocking disc is fixedly arranged on the piston push disc, and the blocking disc is matched with the anti-collision square plate.
Preferably, the driving mechanism comprises two pushing plates fixedly installed on two pushing side plates, a driven plate is fixedly installed on the transmission roll shaft, and the two pushing side plates are matched with the driven plate.
Preferably, the shearing mechanism comprises a plurality of communication pipes fixedly communicated with a plurality of blocking bent pipes, each communication pipe is internally provided with a blocking valve, a plurality of communication pipes are fixedly communicated with a middle transverse pipe together, a plurality of conducting vertical pipes are fixedly communicated with each middle transverse pipe, an extrusion piston piece is slidably arranged in each conducting vertical pipe, a stress bowl is fixedly arranged between each two blocking positioning drills at adjacent positions, and each stress bowl is matched with the corresponding extrusion piston piece;
and a triggering structure is arranged between each pushing side plate and the corresponding side guard rail, and an extrusion structure is arranged between each pushing side plate and two pushing handrails.
Preferably, the triggering structure comprises a plurality of blocking shear nails fixedly arranged on the side guard rail, a pushing plate is fixedly arranged on the pushing side plate, a shear knife is fixedly arranged on the pushing plate, and the shear knife is matched with the blocking shear nails.
Preferably, the extrusion structure comprises a communication opening formed in the pushing side plate, a trapezoidal pressing plate is slidably mounted in the communication opening, damping suckers are fixedly mounted on the blocking scissors respectively, each damping sucker is in extrusion fit with the trapezoidal pressing plate, a pushing frame is fixedly mounted on the pushing railing, and the pushing frame is matched with the trapezoidal pressing plate.
Preferably, the two anti-collision rubber columns and the plurality of anti-collision guide barrels are fixedly provided with a plurality of buffer rubber strips, and the warning guardrail at the upper part of the rear side is fixedly provided with a shielding protective cover.
The invention provides an anti-collision protective fence for roads and bridges. The beneficial effects are as follows:
1. the anti-collision protective fence has the advantage of releasing pressure by the slight impact force when the anti-collision protective fence collides with a vehicle, and can better release pressure and buffer the slight impact force by utilizing the self anti-collision effect of the anti-collision guide barrel, the compressed energy storage of the pressure release spring rod and the buffer mode of the damping effect generated by air when the anti-collision protective fence is slightly impacted, so that the vehicle and a driver can be well protected.
2. The anti-collision guardrail has the advantages that the anti-collision guardrail can rapidly block the received moderate impact force when the anti-collision guardrail collides with a vehicle, the anti-collision guardrail can push the blocking disc to move to block the vehicle by utilizing the impact force generated during the collision when the primary anti-collision is invalid, and the high-strength external thrust generated during the flow conversion of damping hydraulic oil is fully utilized according to the Pascal law, so that the vehicle can be blocked and stopped at high strength, the secondary anti-collision is realized, and the vehicle and a driver are protected.
3. This anticollision protection guardrail when taking place the striking with the vehicle, have the advantage that can receive high strength impact force to intercept and stop, this anticollision protection guardrail can utilize the high strength impact force that the striking produced to drive a plurality of stop location borers when one, second grade anticollision is inefficacy to make its slope smash into subaerial inside, thereby can strengthen the bulk strength of this anticollision protection guardrail, and then utilize the itself of anticollision protection guardrail to carry out rigid interception to the vehicle, thereby avoid this anticollision protection guardrail to be bumped away by the vehicle, and then play the purpose of interception vehicle, prevent that the vehicle from dashing out the outside of road or bridge and causing bigger harm.
In summary, the anti-collision protection fence can carry out targeted anti-collision protection on vehicles according to the differences of the impact forces received by the anti-collision protection fence, can realize multi-stage blocking anti-collision modes such as pressure release buffering, high-strength blocking, and rigid stopping by increasing the overall strength according to the differences of the impact forces by utilizing and converting the impact forces, can effectively avoid greater harm caused by the fact that the vehicles rush out of the road or the bridge, and can carry out better anti-collision protection on the vehicles and drivers.
Drawings
The invention is described in further detail below with reference to the attached drawing figures, wherein:
fig. 1 is a schematic structural view of an anti-collision protection fence for roads and bridges according to the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 rotated by a certain angle;
FIG. 3 is a schematic diagram of a connection structure between two side guard rails;
FIG. 4 is a schematic view of the structure of FIG. 3 rotated by a certain angle;
FIG. 5 is a schematic view of a connection between two push rails;
FIG. 6 is a side view of a median interceptor plate, two pressure release cartridge upper attachment structures;
FIG. 7 is a schematic view of the rear structure of the impact panel, two push rails of FIG. 2;
FIG. 8 is a side view of the middle cross tube and its upper connection structure of FIG. 7;
FIG. 9 is a schematic view of the structure of two pushing side plates, a middle horizontal pipe and the upper connecting structure thereof;
FIG. 10 is a side view of a conductive standpipe, drive roller shaft and superstructure thereof;
FIG. 11 is an exploded view of the plurality of baffle bends, the middle cross tube and the upper structure of the middle cross tube of FIG. 9;
FIG. 12 is an enlarged view of the pusher shoe, pusher carriage and upper structure thereof;
fig. 13 is a top view of the pusher plate and its upper structure of fig. 12.
In the figure: 1 supporting bottom plate, 2 fastening bolts, 3 supporting columns, 4 side protective rails, 5 anti-collision rubber columns, 6 warning guardrails, 7 anti-collision guide barrels, 8 shielding protective covers, 9 blocking positioning drills, 10 anti-collision square plates, 11 pushing side plates, 12 pushing handrails, 13 middle position interception plates, 14 communication openings, 15 pressure release spring rods, 16 pressure release cylinders, 17 piston discs I, 18 air, 19 connecting guide rods, 20 blocking bent pipes, 21 middle position transverse pipes, 22 fixed boxes, 23 blocking discs, 24 piston inner push rods, 25 piston push discs, 26 damping hydraulic oil, 27 blocking valves, 28 moving sliding grooves, 29 fixing frames, 30 conducting vertical pipes, 31 pushing plates, 32 blocking shear nails, 33 damping sucker discs, 34 transmission roll shafts, 35 extruding piston pieces, 36 driven plates, 37 pushing plates, 38 stress bowls, 39 communication guide pipes, 40 trapezoidal pressing plates, 41 shear cutters, 42 pushing frames and 43 square plate moving grooves.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1, an anti-collision protection fence for roads and bridges comprises a plurality of support bottom plates 1, wherein each support bottom plate 1 is fixedly installed on the ground through a plurality of fastening bolts 2, and the anti-collision protection fence can be firmly and stably installed on the ground of a bridge road in a fastening installation mode through the fastening bolts 2, so that the overall stability of the anti-collision protection fence can be increased;
referring to fig. 1-2, the support frame part is used for carrying out overall support of the crash barrier, so that the overall frame firmness and stability of the crash barrier are improved;
the support frame part comprises a plurality of support columns 3 fixedly arranged on a plurality of support bottom plates 1, a side guard rail 4 is fixedly arranged between two groups of support columns 3 in the vertical direction (the vertical direction is the direction from the reference numeral 1 to the reference numeral 2 in the figure 1 of the specification), the side guard rail 4 is used for side protection, a plurality of ventilation openings are formed in the side guard rail 4 and can be used for rapid ventilation, and the size of wind resistance pressure is reduced;
in a further embodiment, two warning guardrails 6 (the horizontal direction is the direction from the reference numeral 3 to the reference numeral 4 in the drawing 1 of the specification) are fixedly arranged between the two groups of support columns 3 in the horizontal direction, and the reflective strips are attached to the outer parts of the warning guardrails 6 and can play a role of road warning, so that the attention of an automobile driver is drawn, and the driving attention of the automobile driver is improved.
Referring to fig. 1 and fig. 3 to 6, the pressure release anti-collision part is used for weakening the impact of the anti-collision protection fence with small force, namely realizing primary anti-collision protection;
the pressure release anti-collision part comprises two pushing side plates 11 which are slidably arranged among the plurality of warning guardrails 6, and an anti-collision square plate 10 is slidably arranged between the two pushing side plates 11 through two square plate moving grooves 43.
In a further embodiment, a guiding mechanism is arranged on the anti-collision square plate 10, the guiding mechanism comprises a built-in groove formed on the anti-collision square plate 10, a plurality of guiding rollers are rotatably arranged in the built-in groove, an anti-collision guiding barrel 7 is fixedly arranged on each guiding roller, and anti-collision rubber columns 5 are fixedly arranged on two support columns 3 at the outer side;
when the automobile runs out of control and collides with the anti-collision protective fence, if the collision force is smaller, the automobile firstly collides with the anti-collision guide barrels 7, and the anti-collision guide barrels 7 primarily weaken and offset the collision force;
when the impact force is smaller, the automobile can move and walk along the plurality of rotary anti-collision guide barrels 7 and finally collide on the anti-collision rubber column 5 at the side part after being deflected at an angle, so that the impact can be further weakened and counteracted;
a plurality of buffer rubber strips are fixedly arranged outside the two anti-collision rubber columns 5 and the plurality of anti-collision guide barrels 7, and can play a role in buffering, releasing and absorbing pressure, so that the anti-collision effect is improved.
In a further embodiment, two pushing rails 12 are slidably mounted between the two pushing side plates 11 through a plurality of moving sliding grooves 28, and a pressure release mechanism is mounted between the two pushing rails 12 and the anti-collision square plate 10, wherein the pressure release mechanism comprises a plurality of middle position interception plates 13 fixedly mounted between the two pushing rails 12, and two pressure release cylinders 16 are fixedly mounted on each middle position interception plate 13;
an energy absorption structure is arranged on each pressure release cylinder 16, the energy absorption structure comprises a first piston disc 17 which is slidably arranged in the pressure release cylinder 16, air 18 is filled between the pressure release cylinder 16 and the first piston disc 17, a pressure release spring rod 15 is fixedly arranged on the first piston disc 17, and one end, far away from the first piston disc 17, of the pressure release spring rod 15 is fixedly arranged on the anti-collision square plate 10;
the impact force is transmitted to the anti-collision square plate 10 when the anti-collision guide barrels 7 are stressed, the anti-collision square plate 10 is pushed to move inwards, the anti-collision square plate 10 is pushed to press the pressure release spring rods 15 behind the anti-collision square plate 10, the pressure release spring rods 15 are subjected to impact force to be compressed at the moment, the impact force is primarily released, the pressure release spring rods 15 are compressed when being pressed, and simultaneously the piston disc 17 behind the pressure release spring rods are pushed to move inwards (the inner side is the direction of the reference numeral 15-the reference numeral 16 shown in fig. 6), so that air 18 in the pressure release barrel 16 is extruded, and the air 18 is compressed and generates heat when being extruded, so that energy generated by the impact force is absorbed and converted, and the impact force is primarily released.
Referring to fig. 2 and fig. 7-8, the blocking anti-collision part is used for weakening the medium-strength impact received by the anti-collision protective fence, namely the impact strength received by the blocking anti-collision part is larger than the small-strength impact received by the primary anti-collision, so that the secondary anti-collision protection is realized;
the blocking anti-collision part comprises two connecting guide rods 19 fixedly arranged between the two pushing side plates 11, and a plurality of blocking disks 23 are arranged on the two connecting guide rods 19 through a plurality of groups of blocking mechanisms.
In a further embodiment, the blocking mechanism comprises a plurality of blocking elbows 20 fixedly mounted on the connecting guide rod 19, a fixed box 22 is fixedly mounted on the plurality of blocking elbows 20 together, the plurality of blocking elbows 20 are communicated with the fixed box 22, and damping hydraulic oil 26 is filled in each blocking elbows 20 and the fixed box 22;
an inner piston push rod 24 is slidably arranged in each blocking elbow pipe 20, each inner piston push rod 24 is matched with the pushing railing 12, and an outer piston push disc 25 is slidably arranged in the fixed box 22;
when the impact force received by the anti-collision protective fence is large and the primary anti-collision cannot completely release pressure: when the primary anti-collision is performed, the deformation of the pressure release spring rod 15 and the movement of the piston disc one 17 are used for compressing air to release the pressure, and a certain stroke and time are needed for the deformation of the pressure release spring rod 15 and the movement of the piston disc one 17, namely when the pressure release spring rod 15 is deformed and the piston disc one 17 is moving and does not move to the maximum value, the impact force is not conducted to the pushing rail 12 at the moment, namely the pushing rail 12 is not stressed (or the force is smaller and cannot overcome the friction force of the movement), only when the piston disc one 17 is moved and cannot move, the impact force at the upper part of the piston disc one is directly conducted to the pushing rail 12, and the impact force is larger and can overcome the friction resistance of the pushing rail 12 to move, so that the pushing rod 24 in the piston is pushed;
at this time, the anti-collision square plate 10 moves in the whole of the plurality of pressure release spring rods 15, the plurality of pressure release cylinders 16, the plurality of middle position interception plates 13 and the two pushing rails 12.
When the two pushing rails 12 move integrally, the pushing rods 24 in the pistons matched with the pushing rails are pushed to move inwards (the moving direction is the direction from the reference numeral 12 to the reference numeral 24 in fig. 8), when the pushing rods 24 in the pistons move inwards, the damping hydraulic oil 26 in the blocking elbow pipe 20 is pushed to flow and finally enter the fixed box 22, and when the damping hydraulic oil 26 in the fixed box 22 increases, the piston pushing disc 25 in the fixed box is pushed to move outwards, so that the blocking discs 23 are driven to move outwards integrally.
The blocking disc 23 is fixedly arranged on the piston push-out disc 25, and the blocking discs 23 are matched with the anti-collision square plate 10, and as the area of the fixed box 22 is larger than that of the plurality of blocking bent pipes 20, the push-out pressure on the plurality of blocking discs 23 can be increased according to Pascal's law (namely that the pressures of all the liquid are consistent), namely according to the principle that the pressure applied on the small-area liquid is small and the pressure applied on the large-area liquid is large in a balance system, namely that the applied pressure on the large-area piston push-out disc 25 is large;
the blocking disc 23 is matched with the anti-collision square plate 10, so that the anti-collision square plate 10 is blocked by a plurality of blocking discs 23 when moving inwards, and the anti-collision square plate 10 is blocked under the matching of larger external thrust on the blocking disc 23, namely, the anti-collision square plate 10 is prevented from moving inwards continuously, and the blocking and stopping of the anti-collision square plate 10 are realized, so that the anti-collision protection effect is realized.
Referring to fig. 9-13, the positioning locking part is used for weakening the impact of the large force received by the anti-collision protection fence, namely the received impact force is larger than the impact of the medium force of the second-level anti-collision and the small force of the first-level anti-collision, so that three-level anti-collision protection is realized;
namely, the impact force is three-level force (large impact) and is larger than two-level force (medium impact) and is larger than one-level force (small impact).
The location locking part includes fixed mount 29 of fixed mounting on lower part warning guardrail 6, all installs extrusion structure between every pass curb plate 11 and the two pass railing 12, extrusion structure is including seting up the intercommunication opening 14 in passing curb plate 11, and slidable mounting has trapezoidal clamp plate 40 in the intercommunication opening 14, all fixed mounting has damping sucking disc 33 on every blocking shear pin 32, and every damping sucking disc 33 all extrudees the laminating mutually with trapezoidal clamp plate 40, and fixed mounting has on the pass railing 12 and passes frame 42, and passes frame 42 and trapezoidal clamp plate 40 to cooperate.
In the anti-collision protective fence in an initial state, the plurality of damping suckers 33 are clung to the trapezoidal pressing plate 40, at the moment, the plurality of damping suckers 33 can apply a horizontal thrust to the trapezoidal pressing plate 40, and as the trapezoidal pressing plate 40 is arranged in the pushing side plate 11, the horizontal thrust is transmitted to the pushing side plate 11, so that the friction resistance of the pushing side plate 11 can be increased, and the impact force required by the movement of the anti-collision protective fence is increased;
when the first-stage anti-collision and the second-stage anti-collision reach the limit and the anti-collision cannot be continued, the external impact force drives the pushing rail 12 to move downwards (downwards moving is the direction from the reference numeral 42 to the reference numeral 28 in the drawing 13), the pushing rail 12 drives the pushing frame 42 on the pushing rail to move downwards, and the pushing frame 42 is matched with the trapezoidal pressing plate 40, so that the trapezoidal pressing plate 40 is extruded to move outwards when the pushing frame 42 moves downwards, the plurality of damping suckers 33 are extruded when the trapezoidal pressing plate 40 moves outwards, the horizontal thrust exerted by the damping suckers 33 on the pushing side plate 11 is further increased, the friction resistance required by sliding of the pushing side plate 11 is increased, and the anti-collision protection function is further achieved.
A triggering structure is arranged between each pushing side plate 11 and the corresponding side guard rail 4, the triggering structure comprises a plurality of blocking shear nails 32 fixedly arranged on the side guard rail 4, a pushing plate 31 is fixedly arranged on the pushing side plate 11, a shear knife 41 is fixedly arranged on the pushing plate 31, and the shear knife 41 is matched with the plurality of blocking shear nails 32;
when the external impact force is large, the pushing side plate 11 moves against the friction resistance to move, the pushing plate 31 and the rapid shearing blade 41 are driven to move when the pushing side plate 11 moves, and the shearing blade 41 can strike a plurality of blocking shearing nails 32 to break when rapidly moving;
the blocking shear pins 32 are used for blocking the shear blades 41 and the pushing side plates 11, when the impact force is small, the movement of the shear blades 41 can be contacted with the blocking shear pins 32, at the moment, the blocking shear pins 32 can block the shear blades 41 and the pushing side plates 11 and cannot move inwards continuously, so that a hard impact resistance effect is achieved, when the impact force is too large, the movement of the shear blades 41 can directly cut off the blocking shear pins 32 and cannot block the same, the part can play a role of protecting the pushing side plates 11 and the side guard rails 4, impact force can be directly applied to the side guard rails 4 to prevent the impact force from being bent and broken due to the impact force when the impact force is too large and the blocking shear pins 32 cannot cut off, and the impact force can be transmitted to the rear part due to the breaking effect so as to trigger a subsequent anti-collision device.
In a further embodiment, a transmission roll shaft 34 is rotatably mounted on the fixed frame 29, a driving mechanism is mounted between the transmission roll shaft 34 and the two pushing side plates 11, a plurality of blocking positioning drills 9 are fixedly mounted on the transmission roll shaft 34, the driving mechanism comprises two pushing plates 37 fixedly mounted on the two pushing side plates 11, a driven plate 36 is fixedly mounted on the transmission roll shaft 34, and the two pushing side plates 11 are matched with the driven plate 36;
the pushing side plate 11 can continue to move backwards after cutting off the blocking shear pin 32, and can drive the pushing plate 37 on the pushing plate to move, the pushing plate 37 can push the driven plate 36 matched with the pushing plate to move and deflect when moving, so that the whole transmission roller shaft 34 is driven to rotate rapidly, the transmission roller shaft 34 can drive the blocking positioning rods 9 on the transmission roller shaft to rotate rapidly, the blocking positioning rods 9 are enabled to be smashed into the ground rapidly, and then the impact force of a vehicle is utilized to increase the rigid support connection between the anti-collision protection rail and the ground, so that the whole support stability of the anti-collision protection rail is further increased.
In a further embodiment, a shearing mechanism is arranged between the two pushing side plates 11 and the corresponding side guard rails 4, the shearing mechanism comprises a plurality of communication pipes 39 fixedly communicated with a plurality of blocking bent pipes 20, a blocking valve 27 is arranged in each communication pipe 39, a middle transverse pipe 21 is fixedly communicated with the plurality of communication pipes 39 together, damping hydraulic oil 26 is filled in the middle transverse pipe 21, a plurality of conducting vertical pipes 30 are fixedly communicated with the middle transverse pipe 21, an extrusion piston piece 35 is slidably arranged in each conducting vertical pipe 30, a stress bowl 38 is fixedly arranged between every two blocking positioning drills 9 at adjacent positions, and each stress bowl 38 is matched with the corresponding extrusion piston piece 35;
when the external impact force is larger, the first-stage anti-collision and the second-stage anti-collision cannot offset and weaken the impact force, the external impact force drives the anti-collision square plate 10 to move inwards and collide with the plurality of blocking disks 23 to move inwards, so that the damping hydraulic oil 26 in the fixed box 22 and the blocking bent pipe 20 is pushed to break the blocking valves 27 in the plurality of communication pipes 39, at the moment, the damping hydraulic oil 26 enters the middle transverse pipe 21 through the plurality of communication pipes 39 and can extrude the damping hydraulic oil 26 in the middle transverse pipe 21 to enter the plurality of conducting vertical pipes 30, the damping hydraulic oil 26 in the conducting vertical pipes 30 drives the extruding piston piece 35 to move downwards and smash into the corresponding stress bowl 38 when the stress bowl 38 is stressed, the extrusion force between the blocking positioning rods 9 and the ground is increased, and the overall supporting stability of the anti-collision protection fence is further increased, and the anti-collision protection fence is prevented from being separated from the original position when the impact force is overlarge, so that the vehicle and a driver are better protected.
The warning guardrail 6 positioned at the upper part of the rear side is fixedly provided with a shielding protective cover 8, and the shielding protective cover 8 is used for shielding and protecting a plurality of blocking bent pipes 20 at the lower part and the upper structure of the shielding protective cover.
The specific anti-collision mode of the anti-collision protective fence is as follows:
the protection (namely, primary protection) of the anti-collision protection fence when being subjected to slight collision force: when the automobile runs out of control and collides to the anti-collision protection fence, if the collision force is smaller, the automobile firstly contacts and collides with the anti-collision guide barrels 7, the anti-collision guide barrels 7 can primarily weaken and offset the collision force, and when the collision force is smaller, the automobile can move and walk along the anti-collision guide barrels 7 and finally collide to the anti-collision rubber column 5 at the side part after angle deflection, so that the collision can be further weakened and offset;
the impact force is transmitted to the anti-collision square plate 10 when the anti-collision guide barrels 7 are stressed, the anti-collision square plate 10 is pushed to move inwards, the anti-collision square plate 10 is pushed to move, the pressure release spring rods 15 at the rear part of the anti-collision square plate 10 are pressed, the pressure release spring rods 15 are compressed by the impact force, the impact force is primarily released, the pressure release spring rods 15 move inwards (in the direction shown in fig. 6) and push the piston disc I17 inwards when reaching the compression limit, air 18 in the pressure release barrel 16 is extruded, the air 18 is compressed and generates heat when being extruded, and energy generated by the impact force is absorbed and converted, so that the impact force is primarily released.
The anti-collision protection fence is protected (namely, secondary protection) when being subjected to medium collision force: when the impact force of the anti-collision guardrail is large and the first-stage anti-collision cannot completely release pressure, the anti-collision square plate 10 moves inwards to drive the anti-collision spring rods 15, the anti-collision cylinders 16, the middle-position interception plates 13 and the two pushing railings 12 to move inwards integrally, the pushing rods 24 in the pistons matched with the anti-collision square plate 12 are pushed to move inwards when the pushing rods 12 move integrally, damping hydraulic oil 26 in the blocking elbow pipe 20 is pushed to flow and finally enter the fixed box 22 when the pushing rods 24 move inwards, the piston push plates 25 in the fixed box 22 are pushed to move outwards when the damping hydraulic oil 26 increases, so that the plurality of blocking disks 23 are driven to move outwards integrally, the anti-collision square plate 10 is blocked by the plurality of blocking disks 23 when the anti-collision square plate 10 moves inwards, namely the anti-collision square plate 10 is prevented from moving inwards continuously under the matching of the large external pushing force on the blocking disks 23, and the anti-collision square plate 10 is prevented from being blocked.
The anti-collision protection fence is protected when being subjected to stronger collision force (namely three-level protection): in the anti-collision protective fence in an initial state, the plurality of damping suckers 33 are clung to the trapezoidal pressing plate 40, at the moment, the plurality of damping suckers 33 can apply a horizontal thrust to the trapezoidal pressing plate 40, and as the trapezoidal pressing plate 40 is arranged in the pushing side plate 11, the horizontal thrust is transmitted to the pushing side plate 11, so that the friction resistance of the pushing side plate 11 can be increased, and the impact force required by the movement of the anti-collision protective fence is increased;
when the first-stage anti-collision and the second-stage anti-collision reach the limit and the anti-collision cannot be continued, the external impact force can drive the pushing rail 12 to move downwards (in the direction shown in fig. 13), the pushing frame 42 on the pushing rail 12 can be driven to move when the pushing rail 12 moves downwards, and as the pushing frame 42 is matched with the trapezoidal pressing plate 40, the trapezoidal pressing plate 40 can be extruded to move outwards to make the trapezoidal pressing plate 40 move leftwards when the pushing frame 42 moves downwards, the plurality of damping suckers 33 can be further extruded when the trapezoidal pressing plate 40 moves outwards, so that the horizontal thrust exerted by the damping suckers 33 on the pushing side plate 11 is further increased, the friction resistance required by sliding of the pushing side plate 11 is increased, and the anti-collision protection function is further played.
When the external impact force is larger, the pushing side plate 11 moves against the friction resistance to move, the pushing plate 31 and the shearing knife 41 on the pushing side plate 11 are driven to move quickly when the pushing side plate 11 moves, the shearing knife 41 impacts the plurality of blocking shearing nails 32 to break when moving quickly, the pushing plate 37 on the pushing side plate 11 moves backwards after the blocking shearing nails 32 are sheared, the pushing plate 37 moves, the driven plate 36 matched with the pushing plate 37 is pushed to move and deflect, the whole transmission roll shaft 34 is driven to rotate quickly, the transmission roll shaft 34 drives the plurality of blocking positioning rods 9 on the transmission roll shaft 34 to rotate quickly when rotating quickly, the plurality of blocking positioning rods 9 are enabled to be smashed into the ground quickly, and the impact force of a vehicle is utilized to increase hard support connection between the anti-collision protection fence and the ground, so that the whole support stability of the anti-collision protection fence is further increased;
when the external impact force is larger, and the first-stage anti-collision and the second-stage anti-collision can not continue to collide when the first-stage anti-collision and the second-stage anti-collision reach the limit, the external impact force drives the anti-collision square plate 10 to move inwards, and then the plurality of blocking disks 23 are impacted to move inwards, so that the damping hydraulic oil 26 in the fixed box 22 and the blocking bent pipe 20 is pushed to break the blocking valves 27 in the plurality of communication pipes 39, at the moment, the damping hydraulic oil 26 enters the middle-position transverse pipe 21 through the plurality of communication pipes 39, and can extrude the damping hydraulic oil 26 in the middle-position transverse pipe 21 to enter the plurality of conducting vertical pipes 30, the damping hydraulic oil 26 in the conducting vertical pipes 30 can drive the extruding piston piece 35 to move downwards and smash into the corresponding stress bowl 38 when being increased, and the stress bowl 38 can be conducted to the blocking positioning drill rod 9 when being stressed, so that the extrusion force between the blocking positioning 9 and the ground is increased, and the whole supporting stability of the anti-collision protection fence is further increased, so that the anti-collision protection fence breaks away from the original position when the impact force is avoided, and the vehicle is better protected for a driver.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (8)
1. The anti-collision protection fence for roads and bridges is characterized by comprising a plurality of support bottom plates (1);
the anti-collision guardrail comprises a supporting frame part, wherein the supporting frame part is used for integrally supporting the anti-collision guardrail, the supporting frame part comprises a plurality of supporting columns (3) fixedly installed on a plurality of supporting bottom plates (1), each supporting bottom plate (1) is fixedly installed on the ground through a plurality of fastening bolts (2), a side guardrail (4) is fixedly installed between two groups of supporting columns (3) in the vertical direction, and two warning guardrails (6) are fixedly installed between two groups of supporting columns (3) in the horizontal direction;
the anti-collision part for releasing pressure comprises two pushing side plates (11) which are slidably arranged among a plurality of warning guardrails (6), an anti-collision square plate (10) is slidably arranged between the two pushing side plates (11) through two square plate moving grooves (43), a guide mechanism is arranged on the anti-collision square plate (10), two pushing railings (12) are slidably arranged between the two pushing side plates (11) through a plurality of moving sliding grooves (28), and a pressure releasing mechanism is arranged between the two pushing railings (12) and the anti-collision square plate (10);
the pressure release mechanism comprises a plurality of middle position interception plates (13) fixedly arranged between two pushing railings (12), two pressure release cylinders (16) are fixedly arranged on each middle position interception plate (13), and an energy absorption structure is arranged on each pressure release cylinder (16);
the energy absorption structure comprises a first piston disc (17) which is slidably arranged in a pressure release cylinder (16), air (18) is filled between the pressure release cylinder (16) and the first piston disc (17), a pressure release spring rod (15) is fixedly arranged on the first piston disc (17), and one end, far away from the first piston disc (17), of the pressure release spring rod (15) is fixedly arranged on the anti-collision square plate (10);
the blocking anti-collision part comprises two connecting guide rods (19) fixedly arranged between the two pushing side plates (11), and a plurality of blocking discs (23) are arranged on the two connecting guide rods (19) through a plurality of groups of blocking mechanisms;
the positioning and locking part comprises a fixing frame (29) fixedly installed on the lower warning guardrail (6), a transmission roller shaft (34) is rotatably installed on the fixing frame (29), a driving mechanism is installed between the transmission roller shaft (34) and two pushing side plates (11), a plurality of blocking positioning drills (9) are fixedly installed on the transmission roller shaft (34), and a shearing mechanism is installed between each pushing side plate (11) and the corresponding side guard rail (4).
2. The anti-collision protection fence for roads and bridges according to claim 1, characterized in that the guiding mechanism comprises a built-in groove formed in the anti-collision square plate (10), a plurality of guiding rollers are rotatably mounted in the built-in groove, an anti-collision guiding barrel (7) is fixedly mounted on each guiding roller, and anti-collision rubber columns (5) are fixedly mounted on two supporting columns (3) on the outer side.
3. The anti-collision protection fence for roads and bridges according to claim 2, wherein a plurality of buffer rubber strips are fixedly installed outside the anti-collision rubber columns (5) and the anti-collision guide barrels (7), and a shielding protection cover (8) is fixedly installed on the warning fence (6) located at the upper part of the rear side.
4. The anti-collision protection fence of a road and bridge according to claim 1, characterized in that the driving mechanism comprises two pushing plates (37) fixedly installed on two pushing side plates (11), the driving roll shaft (34) is fixedly installed with a driven plate (36), and both pushing side plates (11) are matched with the driven plate (36).
5. The anti-collision protection fence for roads and bridges according to claim 1, wherein the blocking mechanism comprises a plurality of blocking elbows (20) fixedly mounted on a connecting guide rod (19), a fixed box (22) is fixedly mounted on the blocking elbows (20), the blocking elbows (20) are communicated with the fixed box (22), and damping hydraulic oil (26) is filled in each blocking elbows (20) and the fixed box (22);
and each blocking bent pipe (20) is internally provided with a piston inner push rod (24) in a sliding manner, each piston inner push rod (24) is matched with the pushing railing (12), a piston outer push plate (25) is internally provided with a fixed box (22) in a sliding manner, a blocking disc (23) is fixedly arranged on the piston outer push plate (25), and the blocking disc (23) is matched with the anti-collision square plate (10).
6. The anti-collision protection fence for roads and bridges according to claim 5, wherein the shearing mechanism comprises a plurality of communication pipes (39) fixedly communicated with a plurality of blocking bent pipes (20), a blocking valve (27) is arranged in each communication pipe (39), a plurality of middle transverse pipes (21) are fixedly communicated with each other on the communication pipes (39), a plurality of conductive vertical pipes (30) are fixedly communicated with each middle transverse pipe (21), an extrusion piston piece (35) is slidably arranged in each conductive vertical pipe (30), a stress bowl (38) is fixedly arranged between each two blocking positioning pins (9) in adjacent positions, and each stress bowl (38) is matched with the corresponding extrusion piston piece (35);
a triggering structure is arranged between each pushing side plate (11) and the corresponding side guard rail (4), and an extrusion structure is arranged between each pushing side plate (11) and two pushing handrails (12).
7. The anti-collision protection fence for roads and bridges according to claim 6, wherein the triggering structure comprises a plurality of blocking shear pins (32) fixedly installed on the side guard rail (4), a pushing plate (31) is fixedly installed on the pushing side plate (11), a shear blade (41) is fixedly installed on the pushing plate (31), and the shear blade (41) is matched with the plurality of blocking shear pins (32).
8. The anti-collision protective fence for roads and bridges according to claim 7, wherein the extrusion structure comprises a communication opening (14) formed in a pushing side plate (11), a trapezoidal pressing plate (40) is slidably mounted in the communication opening (14), damping suction cups (33) are fixedly mounted on each blocking shear pin (32), each damping suction cup (33) is extruded and attached to the trapezoidal pressing plate (40), a pushing frame (42) is fixedly mounted on the pushing railing (12), and the pushing frame (42) is matched with the trapezoidal pressing plate (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410288106.XA CN117888443B (en) | 2024-03-14 | 2024-03-14 | Anti-collision protective fence for road and bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410288106.XA CN117888443B (en) | 2024-03-14 | 2024-03-14 | Anti-collision protective fence for road and bridge |
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| CN117888443A true CN117888443A (en) | 2024-04-16 |
| CN117888443B CN117888443B (en) | 2024-06-18 |
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| KR20020090039A (en) * | 2001-05-26 | 2002-11-30 | 김봉근 | Guard rail for bridge and overpass |
| CN208201726U (en) * | 2018-05-08 | 2018-12-07 | 泉州市明阳化工科技有限公司 | A kind of new road bridge-collision-avoidance wall guardrail |
| CN213061697U (en) * | 2020-08-18 | 2021-04-27 | 袁福才 | Anti-collision protection fence for road and bridge |
| CN213142785U (en) * | 2020-06-16 | 2021-05-07 | 孟俊青 | A anticollision guardrail for road and bridge |
| CN214831922U (en) * | 2021-07-09 | 2021-11-23 | 龙岩市隆顺金属工程有限公司 | Guardrail connecting piece with anti-seismic and anti-collision effects for steel structure bridge |
| CN218322508U (en) * | 2022-08-15 | 2023-01-17 | 赵红丽 | Anti-collision guardrail |
| CN117248477A (en) * | 2023-11-07 | 2023-12-19 | 中交建筑集团第五工程有限公司 | Multi-functional road and bridge anticollision guard rail |
-
2024
- 2024-03-14 CN CN202410288106.XA patent/CN117888443B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020090039A (en) * | 2001-05-26 | 2002-11-30 | 김봉근 | Guard rail for bridge and overpass |
| CN208201726U (en) * | 2018-05-08 | 2018-12-07 | 泉州市明阳化工科技有限公司 | A kind of new road bridge-collision-avoidance wall guardrail |
| CN213142785U (en) * | 2020-06-16 | 2021-05-07 | 孟俊青 | A anticollision guardrail for road and bridge |
| CN213061697U (en) * | 2020-08-18 | 2021-04-27 | 袁福才 | Anti-collision protection fence for road and bridge |
| CN214831922U (en) * | 2021-07-09 | 2021-11-23 | 龙岩市隆顺金属工程有限公司 | Guardrail connecting piece with anti-seismic and anti-collision effects for steel structure bridge |
| CN218322508U (en) * | 2022-08-15 | 2023-01-17 | 赵红丽 | Anti-collision guardrail |
| CN117248477A (en) * | 2023-11-07 | 2023-12-19 | 中交建筑集团第五工程有限公司 | Multi-functional road and bridge anticollision guard rail |
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| Publication number | Publication date |
|---|---|
| CN117888443B (en) | 2024-06-18 |
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