CN112095509A - Bridge warning height limiting device - Google Patents
Bridge warning height limiting device Download PDFInfo
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- CN112095509A CN112095509A CN202010893118.7A CN202010893118A CN112095509A CN 112095509 A CN112095509 A CN 112095509A CN 202010893118 A CN202010893118 A CN 202010893118A CN 112095509 A CN112095509 A CN 112095509A
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- limiting
- top end
- height
- bridge road
- bridge
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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
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
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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
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
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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
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
- E01F9/615—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings illuminated
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention discloses a height limiting device for bridge warning, which comprises: the bridge road comprises a bridge road body, ramps, height limiting rods, a horizontal moving mechanism, a limiting mechanism and a blocking mechanism; the height limiting rod is arranged on the rear side of the top end of the bridge road main body in the left-right direction; the horizontal moving mechanism is arranged at the top ends of the bridge road main body and the ramp along the left-right direction inner cavity and is positioned on the front side of the height limiting rod; the limiting mechanism is arranged at the top end of the horizontal moving mechanism along the front-back direction; the two blocking mechanisms are respectively arranged at the top end of the bridge road main body and positioned at the front side and the rear side of the limiting mechanism, and the other blocking mechanism is arranged at the front side of the top end of the ramp. The height limiting device for bridge warning can remind and block ultrahigh vehicles, prevent traffic accidents caused by the fact that drivers of the ultrahigh vehicles do not pay attention to collision of the height limiting rods in time, can quickly move the ultrahigh vehicles in front of the height limiting rods, is convenient to timely recover traffic, and prevents traffic jam.
Description
Technical Field
The invention relates to the technical field of bridges, in particular to a height limiting device for bridge warning.
Background
The bridge is generally a structure which is erected on rivers, lakes and seas and allows vehicles, pedestrians and the like to smoothly pass through. In order to adapt to the modern traffic industry with high-speed development, bridges are also extended to be constructed to span mountain stream, unfavorable geology or meet other traffic needs so as to enable the buildings to pass more conveniently, and the height limiting frame is mainly used for door-shaped frames at the entrances of bridges, culverts and tunnels, is generally formed by welding steel structures and plays a role in protecting the bridges, the culverts and the tunnels; the sign board is provided with a limit height meter for prompting vehicles;
in the prior art, the invention with the similar authorized bulletin number of CN104060558B is adopted by a height limiting device for bridge warning, and an improved superplasticity safety height limiting rod is disclosed, which comprises two upright post bases, two upright posts, two pull rods, a cross beam, a buffer beam and two pull rod bases. The upright post base and the pull rod base are fixed to a foundation; the first end of the upright post is rotatably connected to the upright post base, and the second end of the upright post is fixedly connected to the cross beam; the pull rod is made of superplastic materials, the first end of the pull rod is rotatably connected to the second end of the upright post, and the second end of the pull rod is rotatably connected with the pull rod base; the bumper beam has honeycomb structure, and it is connected to the crossbeam and, when installing the vehicle that drives to the head-on after target in place, but current limit for height pole simple structure is not obvious to vehicle suggestion effect, and the vehicle driver can't notice the height sign and then cause the car accident phenomenon to frequently take place to the super high vehicle before the limit for height pole of driving can't in time drive away from, causes traffic jam easily.
Disclosure of Invention
The invention aims to provide a height limiting device for bridge warning, which at least solves the problems that in the prior art, the height limiting rod is simple in structure and has an unobvious vehicle prompting effect, a vehicle driver cannot notice a height mark to further cause frequent vehicle accidents, and an ultrahigh vehicle driving to the front of the height limiting rod cannot timely drive away to easily cause traffic jam.
In order to achieve the purpose, the invention provides the following technical scheme: a bridge warning height limiting device comprises:
a bridge road body;
the ramp is arranged on the right side of the bridge road main body along the front-back direction;
the height limiting rod is arranged on the rear side of the top end of the bridge road main body in the left-right direction;
the horizontal moving mechanism is arranged at the top ends of the bridge road main body and the ramp along the left-right direction inner cavity and is positioned on the front side of the height limiting rod;
the limiting mechanism is arranged at the top end of the horizontal moving mechanism along the front-back direction;
the number of the blocking mechanisms is three, two of the blocking mechanisms are respectively arranged at the top end of the bridge road main body and positioned at the front side and the rear side of the limiting mechanism, and the other blocking mechanism is arranged at the front side of the top end of the ramp.
Preferably, the bridge road body further includes: the device comprises a mounting rack, a height sensor, a signal lamp, a pressure sensor, a control box and a panoramic camera; the mounting frame is arranged on the front side of the top end of the bridge road main body in the left-right direction; the number of the height sensors is a plurality, and the height sensors are respectively installed at the top end of the installation rack; the signal lamp is arranged at the center of the front side of the top end of the mounting rack; the pressure sensor is embedded at the top end of the bridge road main body along the left and right directions and is positioned right below the mounting frame; the control box is arranged at the left end of the front side of the mounting rack and is electrically connected with the height sensor, the signal lamp and the pressure sensor respectively; the panoramic camera passes through the support mounting and is in the top right side of bridge road main part, panoramic camera and control box electric connection.
Preferably, the horizontal movement mechanism includes: the device comprises a horizontal moving mechanism shell, a first motor, a first rotating shaft, a first belt pulley, a second belt pulley, a transmission belt, a limiting slide block and a limiting groove; the horizontal moving mechanism shell is arranged at the top ends of the bridge road main body and the ramp along the left-right direction inner cavity, and the horizontal moving mechanism shell is U-shaped; the first motor is arranged at the left rear part of the inner cavity of the horizontal moving mechanism shell along the front-back direction and is electrically connected with the control box; the first rotating shaft is connected to the output end of the first motor along the front-back direction through screws; the number of the first belt pulleys is two, and the two first belt pulleys are respectively in interference fit with the front side and the rear side of the outer wall of the first rotating shaft; the two second belt pulleys are rotatably connected to the front end and the rear end on the right side of the inner cavity of the horizontal moving mechanism shell through pin shafts respectively; the number of the transmission belts (46) is two, and the left end and the right end of the inner sides of the two transmission belts are respectively sleeved on the outer walls of the front first belt pulley and the rear first belt pulley and the outer walls of the rear second belt pulley; the number of the limiting slide blocks is two, and the two limiting slide blocks are fixedly connected to the top ends of the front transmission belt and the rear transmission belt respectively; the number of the limiting grooves is two, the two limiting grooves are respectively arranged on the front side and the rear side of the top end of the horizontal movement mechanism shell in the left-right direction, the upper side and the lower side of the inner cavity of each limiting groove are respectively communicated with the outer wall and the inner cavity of the horizontal movement mechanism shell, and the top end of the limiting sliding block extends out of the inner cavity of each limiting groove.
Preferably, the limiting mechanism comprises; the limiting mechanism comprises a limiting mechanism shell, a speed reducing slope, a mounting groove, a stop block and a first conical gear; the limiting mechanism shell is arranged at the top end of the horizontal moving mechanism shell along the front-back direction; the number of the deceleration slopes is two, and the two deceleration slopes are respectively arranged on the front side and the rear side of the limiting mechanism shell; the number of the mounting grooves is two, the two mounting grooves are respectively arranged on the front side and the rear side of the top end of the limiting mechanism shell, and the upper side and the lower side of an inner cavity of each mounting groove are respectively communicated with the outer wall and the inner cavity of the limiting mechanism shell; the number of the stop blocks is two, the two stop blocks are respectively connected to the front side and the rear side of an inner cavity of the limiting mechanism shell in a rotating mode along the left-right direction through pin shafts, the top ends of the front stop block and the rear stop block respectively extend into the inner cavities of the front mounting groove and the rear mounting groove, and the longitudinal sections of the stop blocks are triangular; the number of the first conical gears is two, and the two first conical gears are in interference fit with the left sides of the front stop block and the rear stop block respectively.
Preferably, the limiting mechanism further comprises; the second motor, the second rotating shaft and the second bevel gear; the second motor is arranged in front of the left of the inner cavity of the limiting mechanism shell along the front-back direction and is electrically connected with the control box; the front and back direction screws of the second rotating shaft are connected to the output end of the second motor; the number of the second bevel gears is two, the two second bevel gears are respectively in interference fit with the front side and the rear side of the second rotating shaft, and the front second bevel gears and the rear second bevel gears rotate for 180 degrees and are arranged in a superposition mode and are respectively meshed with the front first bevel gears and the rear first bevel gears.
Compared with the prior art, the invention has the beneficial effects that: this limit for height device is used in bridge warning:
1. monitoring vehicles running on a bridge road main body at a distance through a height sensor and sending alarm signals to a control box to remind a current vehicle and subsequent vehicles of decelerating, triggering a pressure sensor by the vehicle when a driver of the ultrahigh vehicle does not notice a reminding mark, and sending the alarm signals to the interior of the control box by the pressure sensor;
2. the warning lamp a sends a light signal to the outside to remind a vehicle to come and go, the motor a drives the worm to rotate in the anticlockwise direction to enable the worm to drive the stop lever a to rotate in the anticlockwise direction under the action of the rotation force of the worm and the cooperation of the rotating shaft a so as to respectively block vehicles on the main body of the bridge road and the surface of the ramp, the laser sensor a carries out laser scanning in the descending process of the stop lever a, and when the vehicle exists below the stop lever a, the network controller a timely controls the motor a to stop rotating so as to avoid damaging the vehicle;
3. two second bevel gears around driving self through second motor drive second pivot all rotate, make two first bevel gears around the messenger rotate to anticlockwise and clockwise respectively under the effect of corresponding position second bevel gear rotatory power, dog upset in two first bevel gear drive corresponding position on the front and back so that its inclined plane stretches out the mounting groove inner chamber in order to carry on spacingly to the vehicle, prevent that the vehicle from dashing the card or backing a car and causing traffic jam, two first belt pulleys around first motor drive first pivot drive self rotate, make two driving belt drive two spacing slider around the effect of first belt pulley rotatory power on corresponding position around the messenger drive two spacing slider drive stop gear casing and top limit for height vehicle and move to the ramp surface and go and leave, and then make bridge road main part and ramp road conditions resume again.
Therefore, the ultrahigh vehicle can be reminded and blocked, the accident caused by the fact that a driver of the ultrahigh vehicle does not timely pay attention to collision with the height limiting rod is prevented, the ultrahigh vehicle in front of the height limiting rod can be quickly moved away, the traffic can be conveniently recovered in time, and traffic jam is prevented.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the horizontal movement mechanism of FIG. 1;
FIG. 3 is an exploded view of the spacing mechanism of FIG. 1;
FIG. 4 is an exploded view of the embodiment of the arresting mechanism of FIG. 1;
FIG. 5 is an exploded view of a second embodiment of the arresting mechanism of FIG. 1;
fig. 6 is a schematic circuit diagram of fig. 1.
In the figure: 1. bridge road body, 2, ramp, 3, height limiting rod, 4, horizontal moving mechanism, 41, horizontal moving mechanism shell, 42, first motor, 43, first rotating shaft, 44, first belt pulley, 45, second belt pulley, 46, transmission belt, 47, limiting slider, 48, limiting groove, 5, limiting mechanism, 51, limiting mechanism shell, 52, speed reducing slope, 53, mounting groove, 54, stop block, 55, first conical gear, 56, second motor, 57, second rotating shaft, 58, second conical gear, 6, blocking mechanism, 611, blocking mechanism shell a, 612, rotating shaft a, 613, blocking rod a, 614, laser sensor a, 615, motor a, 616, worm, 617, worm gear, 618, network controller a, 619, alarm lamp a, 621, blocking mechanism shell b, rotating shaft b, 623, blocking rod b, 624, laser sensor b, 625, Motor b, 626, first gear, 627, second gear, 628, network controller b, 629, warning light b, 7, mounting bracket, 8, height sensor, 9, signal light, 10, pressure sensor, 11, control box, 12, panoramic camera.
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.
The first embodiment is as follows: referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 6, the present invention provides a technical solution: a bridge warning height limiting device comprises: the bridge road comprises a bridge road main body 1, ramps 2, height limiting rods 3, a horizontal moving mechanism 4, a limiting mechanism 5 and a blocking mechanism 6; the ramp 2 is arranged on the right side of the bridge road main body 1 along the front-back direction; the height limiting rod 3 is arranged on the rear side of the top end of the bridge road main body 1 along the left-right direction, and an electronic sign indication board or a fixed sign indication board can be arranged on the surface of the height limiting rod 3 according to actual needs; the horizontal moving mechanism 4 is arranged at the top ends of the bridge road main body 1 and the ramp 2 along the left-right direction inner cavity and is positioned at the front side of the height limiting rod 3; the limiting mechanism 5 is arranged at the top end of the horizontal moving mechanism 4 along the front-back direction; the number of the blocking mechanisms 6 is three, two of the blocking mechanisms 6 are respectively arranged at the top end of the bridge road main body 1 and located on the front side and the rear side of the limiting mechanism 5, the other blocking mechanism 6 is arranged on the front side of the top end of the ramp 2, the two blocking mechanisms 6 on the front side and the rear side of the surface of the bridge road main body 1 can block ultrahigh vehicles on the surface of the blocking mechanisms 5, and the blocking mechanisms 6 on the top end of the ramp 2 can block and throttle vehicles running in the ramp 2.
Preferably, the bridge road body 1 further includes: the device comprises a mounting rack 7, a height sensor 8, a signal lamp 9, a pressure sensor 10, a control box 11 and a panoramic camera 12; the mounting rack 7 is arranged on the front side of the top end of the bridge road main body 1 along the left-right direction; the number of the height sensors 8 is a plurality, the height sensors 8 are respectively installed at the top ends of the installation frames 7, the height sensors 8 are specifically purchased and installed and used from the market according to actual use requirements, and the height sensors 8 can be controlled by the control box 11 to monitor the height of a vehicle running on the bridge road main body 1 from a distance; the signal lamp 9 is installed at the center of the front side of the top end of the installation frame 7, the signal lamp 9 is directly purchased, installed and used from the market according to actual use requirements, and the signal lamp 9 can be controlled by the control box 11 to remind the current ultrahigh vehicle and the subsequent vehicles of reducing the speed; the pressure sensor 10 is embedded at the top end of the bridge road main body 1 in the left-right direction and is positioned right below the mounting frame 7, the pressure sensor 10 is directly purchased, installed and used from the market according to actual use requirements, the pressure sensor 10 can be controlled by the control box 11, when an ultrahigh vehicle driver does not notice a reminding mark, the vehicle triggers the pressure sensor 10, and the pressure sensor 10 sends an alarm signal to the inside of the control box 11; the control box 11 is arranged at the left end of the front side of the mounting rack 7, the control box 11 is electrically connected with the height sensor 8, the signal lamp 9 and the pressure sensor 10 respectively, the specific usage model of the control box 11 is directly purchased, installed and used from the market according to the actual usage requirement, and a preset program is arranged in the control box 11; panoramic camera 12 passes through the support mounting on the top right side of bridge road main part 1, panoramic camera 12 and 11 electric connection of control box, panoramic camera 12 specifically uses the model to require directly to purchase the installation and use from the market according to the in-service use, panoramic camera 12 can be controlled by control box 11 in order to monitor bridge road main part 1 and 2 road conditions on the ramp, and the inside network module that is provided with of panoramic camera 12 can feed back in order in time to traffic police command center with municipal road traffic police command center remote network connection.
Preferably, the horizontal movement mechanism 4 further includes: the device comprises a horizontal moving mechanism shell 41, a first motor 42, a first rotating shaft 43, a first belt pulley 44, a second belt pulley 45, a transmission belt 46, a limiting slide block 47 and a limiting groove 48; the horizontal moving mechanism shell 41 is arranged at the top ends of the bridge road main body 1 and the ramp 2 along the left-right direction inner cavity, and the horizontal moving mechanism shell 41 is U-shaped; the first motor 42 is arranged at the left rear part of the inner cavity of the horizontal moving mechanism shell 41 along the front-back direction, the first motor 42 is electrically connected with the control box 11, the specific usage model of the first motor 42 is directly purchased, installed and used from the market according to the actual usage requirement, and the first motor 42 can be controlled by the control box 11 to drive the first rotating shaft 43 to rotate anticlockwise or clockwise; the first rotating shaft 43 is screwed to the output end of the first motor 42 in the front-rear direction; the number of the first belt pulleys 44 is two, and the two first belt pulleys 44 are respectively in interference fit on the front side and the rear side of the outer wall of the first rotating shaft 43; the number of the second belt pulleys 45 is two, the two second belt pulleys 45 are respectively and rotatably connected to the front end and the rear end of the right side of the inner cavity of the horizontal moving mechanism shell 41 through pin shafts, and the second belt pulleys 45 can play a role in tensioning and limiting the transmission belt 46; the number of the transmission belts 46 is two, and the left end and the right end of the inner side of each of the two transmission belts 46 are respectively sleeved on the outer walls of the front and the rear first belt pulleys 44 and the second belt pulleys 45; the number of the limiting slide blocks 47 is two, and the two limiting slide blocks 47 are respectively and fixedly connected to the top ends of the front transmission belt 46 and the rear transmission belt 46; the number of the limiting grooves 48 is two, the two limiting grooves 48 are respectively arranged on the front side and the rear side of the top end of the horizontal movement mechanism shell 41 in the left-right direction, the upper side and the lower side of the inner cavity of the limiting groove 48 are respectively communicated with the outer wall and the inner cavity of the horizontal movement mechanism shell 41, the top end of the limiting slide block 47 extends out of the inner cavity of the limiting groove 48, and the limiting slide block 47 further slides left and right in the inner cavity of the limiting groove 48.
As a preferable scheme, further, the limiting mechanism 5 comprises; a limiting mechanism shell 51, a speed reducing slope 52, a mounting groove 53, a stop block 54 and a first bevel gear 55; the limiting mechanism shell 51 is arranged at the top end of the horizontal moving mechanism shell 41 along the front-back direction; the number of the deceleration slopes 52 is two, and the two deceleration slopes 52 are respectively arranged on the front side and the rear side of the limiting mechanism shell 51; the number of the mounting grooves 53 is two, the two mounting grooves 53 are respectively arranged on the front side and the rear side of the top end of the limiting mechanism shell 51, and the upper side and the lower side of the inner cavity of each mounting groove 53 are respectively communicated with the outer wall and the inner cavity of the limiting mechanism shell 51; the number of the stop blocks 54 is two, the two stop blocks 54 are respectively connected to the front side and the rear side of the inner cavity of the limiting mechanism shell 51 in a rotating mode along the left-right direction through pin shafts, the top ends of the front stop block 54 and the rear stop block 54 respectively extend into the inner cavities of the front mounting groove 53 and the rear mounting groove 53, and the longitudinal sections of the stop blocks 54 are triangular; the number of the first bevel gears 55 is two, the two first bevel gears 55 are respectively in interference fit with the left sides of the front stop dog 54 and the rear stop dog 54, and the front stop dog 55 and the rear stop dog 55 can drive the corresponding positions to turn over in the inner cavity of the mounting groove 53 so that the inclined surfaces of the upper stop dogs stretch out of the inner cavity of the mounting groove 53 to limit the vehicle, and the vehicle is prevented from being jammed or backed to cause traffic jam.
As a preferred scheme, furthermore, the limiting mechanism 5 further comprises; a second motor 56, a second rotating shaft 57 and a first bevel gear 58; the second motor 56 is arranged in the front left of the inner cavity of the limiting mechanism shell 51 along the front-back direction, the second motor 56 is electrically connected with the control box 11, the specific usage model of the second motor 56 is directly purchased, installed and used from the market according to the actual usage requirement, and the second motor 56 can be controlled by the control box 11 to drive the second rotating shaft 57 to rotate anticlockwise or clockwise; the second rotating shaft 57 is screwed to the output end of the second motor 56 in the front-rear direction; the number of the first conical gears 58 is two, the two first conical gears 58 are respectively in interference fit with the front side and the rear side of the second rotating shaft 57, the front first conical gear 58 and the rear first conical gear 58 rotate for 180 degrees and are overlapped and respectively meshed with the front first conical gear 55 and the rear first conical gear 55, and the front first conical gear 55 and the rear first conical gear 55 respectively rotate in the counterclockwise direction and the clockwise direction under the action of the rotating force of the second conical gear 58 at the corresponding position.
Preferably, the blocking mechanism 6 further includes: the blocking mechanism comprises a blocking mechanism shell a611, a rotating shaft a612, a gear lever a613, a laser sensor a614, a motor a615, a worm 616, a worm wheel 617, a network controller a618 and an alarm lamp a 619; the stopping mechanism shell a611 is arranged at the top end of the bridge road body 1 or the ramp 2 along the up-down direction; the rotating shaft a612 is rotatably connected to the rear side of the top end of the blocking mechanism shell a611 through a bearing in the front-back direction, an outer ring of the bearing is in interference fit with the outer wall of the blocking mechanism shell a611, an inner ring of the bearing is fixedly connected with the outer wall of the rotating shaft a612, and the front side of the rotating shaft a612 extends into the inner cavity of the blocking mechanism shell a 611; the lever a613 is arranged at the rear side of the rotating shaft a612 in the left-right direction; the laser sensor a614 is embedded at the bottom end of the gear lever a613, the laser sensor a614 is directly purchased, installed and used from the market according to the actual use requirement, the laser sensor a614 can be controlled by the network controller a618 to perform laser scanning in the descending process of the gear lever a613, and when a vehicle exists below the gear lever a613, the laser sensor a614 sends an alarm signal to the inside of the network controller a618, so that the network controller a618 timely controls the motor a615 to stop rotating; the motor a615 is arranged in the inner cavity of the blocking mechanism shell a611 along the left-right direction, the specific use model of the motor a615 is directly purchased, installed and used from the market according to the actual use requirement, and the motor a615 can be controlled by the network controller a618 to drive the worm 616 to rotate anticlockwise or clockwise; the worm 616 is screwed at the output end of the motor a615 along the left-right direction; the worm wheel 617 is connected with the front end of the rotating shaft a612 in a key mode, the worm wheel 617 is meshed with the worm 616, and the worm 617 can rotate in the counter-clockwise direction or the clockwise direction under the action of the rotating force of the worm 616; the network controller a618 is arranged at the bottom end of the inner cavity of the blocking mechanism shell a611, the network controller a618 is respectively and electrically connected with the control box 11, the laser sensor a614 and the motor a615, the specific use model of the network controller a618 is directly purchased, installed and used from the market according to the actual use requirement, and the network controller a618 can be controlled and started by the control box 11; the alarm lamp a619 is arranged at the top end of the blocking mechanism shell a611, the alarm lamp a619 is electrically connected with the network controller a618, the type of the alarm lamp a619 is directly purchased from the market and installed and used according to actual use requirements, and the alarm lamp a619 can be controlled by the network controller a618 to send a light signal to the outside to remind a driver of coming and going vehicles.
Example two: referring to fig. 1, fig. 2, fig. 3, fig. 5 and fig. 6, the present invention provides a technical solution: a technical scheme is as follows: a bridge warning height limiting device comprises: the bridge road comprises a bridge road main body 1, ramps 2, height limiting rods 3, a horizontal moving mechanism 4, a limiting mechanism 5 and a blocking mechanism 6; the ramp 2 is arranged on the right side of the bridge road main body 1 along the front-back direction; the height limiting rod 3 is arranged on the rear side of the top end of the bridge road main body 1 along the left-right direction, and an electronic sign indication board or a fixed sign indication board can be arranged on the surface of the height limiting rod 3 according to actual needs; the horizontal moving mechanism 4 is arranged at the top ends of the bridge road main body 1 and the ramp 2 along the left-right direction inner cavity and is positioned at the front side of the height limiting rod 3; the limiting mechanism 5 is arranged at the top end of the horizontal moving mechanism 4 along the front-back direction; the number of the blocking mechanisms 6 is three, two of the blocking mechanisms 6 are respectively arranged at the top end of the bridge road main body 1 and located on the front side and the rear side of the limiting mechanism 5, the other blocking mechanism 6 is arranged on the front side of the top end of the ramp 2, the two blocking mechanisms 6 on the front side and the rear side of the surface of the bridge road main body 1 can block ultrahigh vehicles on the surface of the blocking mechanisms 5, and the blocking mechanisms 6 on the top end of the ramp 2 can block and throttle vehicles running in the ramp 2.
Preferably, the bridge road body 1 further includes: the device comprises a mounting rack 7, a height sensor 8, a signal lamp 9, a pressure sensor 10, a control box 11 and a panoramic camera 12; the mounting rack 7 is arranged on the front side of the top end of the bridge road main body 1 along the left-right direction; the number of the height sensors 8 is a plurality, the height sensors 8 are respectively installed at the top ends of the installation frames 7, the height sensors 8 are specifically purchased and installed and used from the market according to actual use requirements, and the height sensors 8 can be controlled by the control box 11 to monitor the height of a vehicle running on the bridge road main body 1 from a distance; the signal lamp 9 is installed at the center of the front side of the top end of the installation frame 7, the signal lamp 9 is directly purchased, installed and used from the market according to actual use requirements, and the signal lamp 9 can be controlled by the control box 11 to remind the current ultrahigh vehicle and the subsequent vehicles of reducing the speed; the pressure sensor 10 is embedded at the top end of the bridge road main body 1 in the left-right direction and is positioned right below the mounting frame 7, the pressure sensor 10 is directly purchased, installed and used from the market according to actual use requirements, the pressure sensor 10 can be controlled by the control box 11, when an ultrahigh vehicle driver does not notice a reminding mark, the vehicle triggers the pressure sensor 10, and the pressure sensor 10 sends an alarm signal to the inside of the control box 11; the control box 11 is arranged at the left end of the front side of the mounting rack 7, the control box 11 is electrically connected with the height sensor 8, the signal lamp 9 and the pressure sensor 10 respectively, the specific usage model of the control box 11 is directly purchased, installed and used from the market according to the actual usage requirement, and a preset program is arranged in the control box 11; panoramic camera 12 passes through the support mounting on the top right side of bridge road main part 1, panoramic camera 12 and 11 electric connection of control box, panoramic camera 12 specifically uses the model to require directly to purchase the installation and use from the market according to the in-service use, panoramic camera 12 can be controlled by control box 11 in order to monitor bridge road main part 1 and 2 road conditions on the ramp, and the inside network module that is provided with of panoramic camera 12 can feed back in order in time to traffic police command center with municipal road traffic police command center remote network connection.
Preferably, the horizontal movement mechanism 4 further includes: the device comprises a horizontal moving mechanism shell 41, a first motor 42, a first rotating shaft 43, a first belt pulley 44, a second belt pulley 45, a transmission belt 46, a limiting slide block 47 and a limiting groove 48; the horizontal moving mechanism shell 41 is arranged at the top ends of the bridge road main body 1 and the ramp 2 along the left-right direction inner cavity, and the horizontal moving mechanism shell 41 is U-shaped; the first motor 42 is arranged at the left rear part of the inner cavity of the horizontal moving mechanism shell 41 along the front-back direction, the first motor 42 is electrically connected with the control box 11, the specific usage model of the first motor 42 is directly purchased, installed and used from the market according to the actual usage requirement, and the first motor 42 can be controlled by the control box 11 to drive the first rotating shaft 43 to rotate anticlockwise or clockwise; the first rotating shaft 43 is screwed to the output end of the first motor 42 in the front-rear direction; the number of the first belt pulleys 44 is two, and the two first belt pulleys 44 are respectively in interference fit on the front side and the rear side of the outer wall of the first rotating shaft 43; the number of the second belt pulleys 45 is two, the two second belt pulleys 45 are respectively and rotatably connected to the front end and the rear end of the right side of the inner cavity of the horizontal moving mechanism shell 41 through pin shafts, and the second belt pulleys 45 can play a role in tensioning and limiting the transmission belt 46; the number of the transmission belts 46 is two, and the left end and the right end of the inner side of each of the two transmission belts 46 are respectively sleeved on the outer walls of the front and the rear first belt pulleys 44 and the second belt pulleys 45; the number of the limiting slide blocks 47 is two, and the two limiting slide blocks 47 are respectively and fixedly connected to the top ends of the front transmission belt 46 and the rear transmission belt 46; the number of the limiting grooves 48 is two, the two limiting grooves 48 are respectively arranged on the front side and the rear side of the top end of the horizontal movement mechanism shell 41 in the left-right direction, the upper side and the lower side of the inner cavity of the limiting groove 48 are respectively communicated with the outer wall and the inner cavity of the horizontal movement mechanism shell 41, the top end of the limiting slide block 47 extends out of the inner cavity of the limiting groove 48, and the limiting slide block 47 further slides left and right in the inner cavity of the limiting groove 48.
As a preferable scheme, further, the limiting mechanism 5 comprises; a limiting mechanism shell 51, a speed reducing slope 52, a mounting groove 53, a stop block 54 and a first bevel gear 55; the limiting mechanism shell 51 is arranged at the top end of the horizontal moving mechanism shell 41 along the front-back direction; the number of the deceleration slopes 52 is two, and the two deceleration slopes 52 are respectively arranged on the front side and the rear side of the limiting mechanism shell 51; the number of the mounting grooves 53 is two, the two mounting grooves 53 are respectively arranged on the front side and the rear side of the top end of the limiting mechanism shell 51, and the upper side and the lower side of the inner cavity of each mounting groove 53 are respectively communicated with the outer wall and the inner cavity of the limiting mechanism shell 51; the number of the stop blocks 54 is two, the two stop blocks 54 are respectively connected to the front side and the rear side of the inner cavity of the limiting mechanism shell 51 in a rotating mode along the left-right direction through pin shafts, the top ends of the front stop block 54 and the rear stop block 54 respectively extend into the inner cavities of the front mounting groove 53 and the rear mounting groove 53, and the longitudinal sections of the stop blocks 54 are triangular; the number of the first bevel gears 55 is two, the two first bevel gears 55 are respectively in interference fit with the left sides of the front stop dog 54 and the rear stop dog 54, and the front stop dog 55 and the rear stop dog 55 can drive the corresponding positions to turn over in the inner cavity of the mounting groove 53 so that the inclined surfaces of the upper stop dogs stretch out of the inner cavity of the mounting groove 53 to limit the vehicle, and the vehicle is prevented from being jammed or backed to cause traffic jam.
As a preferred scheme, furthermore, the limiting mechanism 5 further comprises; a second motor 56, a second rotating shaft 57 and a first bevel gear 58; the second motor 56 is arranged in the front left of the inner cavity of the limiting mechanism shell 51 along the front-back direction, the second motor 56 is electrically connected with the control box 11, the specific usage model of the second motor 56 is directly purchased, installed and used from the market according to the actual usage requirement, and the second motor 56 can be controlled by the control box 11 to drive the second rotating shaft 57 to rotate anticlockwise or clockwise; the second rotating shaft 57 is screwed to the output end of the second motor 56 in the front-rear direction; the number of the first conical gears 58 is two, the two first conical gears 58 are respectively in interference fit with the front side and the rear side of the second rotating shaft 57, the front first conical gear 58 and the rear first conical gear 58 rotate for 180 degrees and are overlapped and respectively meshed with the front first conical gear 55 and the rear first conical gear 55, and the front first conical gear 55 and the rear first conical gear 55 respectively rotate in the counterclockwise direction and the clockwise direction under the action of the rotating force of the second conical gear 58 at the corresponding position.
Preferably, the blocking mechanism 6 further includes: a blocking mechanism casing b621, a rotating shaft b622, a gear lever b623, a laser sensor b624, a motor b625, a first gear 626, a second gear 627, a network controller b628 and an alarm lamp b 629; the blocking mechanism shell b621 is arranged at the top end of the bridge road body 1 or the ramp 2 along the up-down direction; the rotating shaft b622 is rotatably connected to the rear side of the top end of the blocking mechanism housing b621 through a bearing in the front-back direction, an outer ring of the bearing is in interference fit with the outer wall of the blocking mechanism housing b621, an inner ring of the bearing is fixedly connected with the outer wall of the rotating shaft b622, and the front side of the rotating shaft b622 extends into the inner cavity of the blocking mechanism housing b 621; the shift lever b623 is arranged at the rear side of the rotating shaft b622 in the left-right direction; the laser sensor b624 is embedded at the bottom end of the gear lever b623, the laser sensor b624 is directly purchased, installed and used from the market according to the actual use requirement, the laser sensor b624 can be controlled by the network controller b628 to perform laser scanning in the descending process of the gear lever b623, and when a vehicle exists below the gear lever b623, the laser sensor b624 sends an alarm signal to the inside of the network controller b628 so that the network controller b628 timely controls the motor b625 to stop rotating; the motor b625 is arranged in the inner cavity of the blocking mechanism housing b621 along the left-right direction, the motor b625 is specifically purchased, installed and used from the market according to the actual use requirement, and the motor b625 can be controlled by the network controller b628 to drive the worm 616 to rotate counterclockwise or clockwise; the first gear 626 is screwed at the output end of the motor b 625; a second gear 627 is keyed on the front end of the rotating shaft b622, the second gear 627 is meshed with the first gear 626, and the second gear 627 can rotate in a counterclockwise direction or a clockwise direction under the rotation force of the first gear 626; the network controller b628 is arranged at the bottom end of the inner cavity of the blocking mechanism housing b621, the network controller b628 is electrically connected with the control box 11, the laser sensor b624 and the motor b625 respectively, the specific use model of the network controller b628 is directly purchased from the market and installed and used according to the actual use requirement, and the network controller b628 can be controlled and started by the control box 11; the warning lamp b629 is arranged at the top end of the blocking mechanism shell b621, the warning lamp b629 is electrically connected with the network controller b628, the specific use model of the warning lamp b629 is directly purchased and installed from the market according to the actual use requirement, and the warning lamp b629 can be controlled by the network controller b629 to send a light signal to the outside to remind the vehicles coming and going.
All the electrical components in the present application can be connected with an external adaptive power supply through a wire, and an adaptive external controller should be selected to connect according to specific actual use conditions to meet the control requirements of all the electrical components, and the specific connection mode and the control sequence thereof should be referred to in the following working principle that the electrical components are electrically connected in sequence, the detailed connection means thereof is a known technology in the art and is not described, and the following main description of the working principle and the process specifically works as follows.
Step 1: when the system is used, a worker sequentially controls the control box 11 to start the height sensor 8, the signal lamp 9, the pressure sensor 10 and the panoramic camera 12, the panoramic camera 12 monitors the current road condition, the height sensor 8 monitors the height of a vehicle running on the bridge road main body 1 at a distance, when the height of the vehicle exceeds the limit height of the height limiting rod 3, the height sensor 8 sends an alarm signal to the control box 11 to prompt a preset program in the control box 11 to control the signal lamp 9 to start, so that the signal lamp 9 reminds the current ultrahigh vehicle and the subsequent vehicles to decelerate, when a driver of the ultrahigh vehicle does not notice a reminding mark, the vehicle triggers the pressure sensor 10, the pressure sensor 10 sends the alarm signal to the inside of the control box 11, and the control box 11 sequentially activates the three blocking mechanisms 6;
step 2: the first embodiment is as follows: the control box 11 controls the network controller a618 to start, so that the network controller a618 sequentially starts an alarm lamp a619, a motor a615 and a laser sensor a614, the alarm lamp a619 sends a light signal to the outside to remind a vehicle to go and go, the motor a615 drives the worm 616 to rotate in the counterclockwise direction, the worm 617 rotates in the counterclockwise direction under the action of the rotating force of the worm 616 due to the meshing of the worm 616 and the worm 617, the worm 617 drives the stop lever a613 to rotate in the counterclockwise direction under the matching of the rotating shaft a612 to respectively block the vehicles on the surfaces of the bridge road body 1 and the ramp 2, the front blocking mechanism and the rear blocking mechanism 6 on the surface of the bridge road body 1 block the ultrahigh vehicle on the surface of the blocking mechanism 5, the stop mechanism 6 on the surface of the ramp 2 throttles the vehicles on the ramp 2, the laser sensor a614 performs laser scanning in the descending process of the stop lever a613, when the vehicle exists below the stop lever a613, the laser sensor a614 sends an alarm signal to the inside of the network controller a618, so that the network controller a618 timely controls the motor a615 to stop rotating, and the gear lever a613 is prevented from damaging the vehicle;
example two: the control box 11 controls the network controller b628 to start, so that the network controller b628 sequentially starts the warning lamp b629, the motor b625 and the laser sensor b624, the warning lamp b629 sends a light signal to the outside to remind a vehicle coming from or going to notice, the rotating shaft b622 drives the first gear 626 to rotate clockwise, the first gear 627 is driven to rotate counterclockwise under the action of the rotating force of the first gear 626 due to the meshing of the first gear 626 and the first gear 627, the first gear 627 further drives the stop lever b623 to rotate counterclockwise under the coordination of the rotating shaft b622 so as to respectively stop the vehicles on the surfaces of the bridge road body 1 and the ramp 2, two stop mechanisms 6 at the front and the back of the surface of the bridge road body 1 stop the ultrahigh vehicle on the surface 5, the stop mechanism 6 on the surface of the ramp 2 throttles the vehicles on the ramp 2, the laser sensor b624 performs laser scanning during the descending of the stop lever b623, when a vehicle exists below the stop lever 623 b, the laser sensor b624 sends an alarm signal to the inside of the laser sensor b628, so that the laser sensor b628 timely controls the motor b625 to stop rotating, and the damage of the gear lever b to the vehicle is avoided 623;
and step 3: the control box 11 sequentially controls the second motor 56 and the first motor 42 to start, the second motor 56 drives the second rotating shaft 57 to rotate clockwise, and further the second rotating shaft 57 drives the front and rear two second bevel gears 58 to rotate clockwise, because the front and rear two second bevel gears 58 are respectively engaged with the front and rear two first bevel gears 55, and the front and rear two second bevel gears 58 are overlapped after rotating 180 degrees, the front and rear two first bevel gears 55 are respectively driven to rotate counterclockwise and clockwise under the action of the rotating force of the second bevel gear 58 at the corresponding position, and further the front and rear two first bevel gears 55 drive the stopper 54 at the corresponding position to turn over in the inner cavity of the mounting groove 53 so that the inclined surface thereof extends out of the inner cavity of the mounting groove 53 to limit the vehicle, thereby preventing traffic jam caused by vehicle jam or reversing, the first motor 42 drives the first rotating shaft 43 to rotate counterclockwise, and the first rotating shaft 43 drives the front and rear first belt pulleys 44 to rotate anticlockwise, so that the front and rear transmission belts 46 rotate anticlockwise under the action of the rotating force of the first belt pulleys 44 at corresponding positions and under the limiting action of the second belt pulleys 45 at corresponding positions, and drive the front and rear limiting slide blocks 47 to move to the right under the limiting action of the limiting grooves 48 at corresponding positions, so that the limiting slide blocks 47 drive the limiting mechanism shell 51 and height-limiting vehicles above the limiting mechanism shell 51 to move to the surface of the ramp 2 to run away, and the control box 11 sequentially controls the limiting mechanism 5 to reset and stops the three limiting mechanisms 6, so that the road conditions of the bridge road body 1 and the ramp 2 are restored again.
Therefore, the ultrahigh vehicle can be reminded and blocked, the accident caused by the fact that a driver of the ultrahigh vehicle does not timely pay attention to collision with the height limiting rod is prevented, the ultrahigh vehicle in front of the height limiting rod can be quickly moved away, the traffic can be conveniently recovered in time, and traffic jam is prevented.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a bridge warning is with limit for height device which characterized in that includes:
a bridge road body (1);
the ramp (2) is arranged on the right side of the bridge road main body (1) along the front-back direction;
the height limiting rod (3) is arranged on the rear side of the top end of the bridge road main body (1) along the left-right direction;
the horizontal moving mechanism (4) is arranged at the top ends of the bridge road main body (1) and the ramp (2) along the left-right direction inner cavity and is positioned on the front side of the height limiting rod (3);
the limiting mechanism (5) is arranged at the top end of the horizontal moving mechanism (4) along the front-back direction;
the number of the blocking mechanisms (6) is three, two of the blocking mechanisms (6) are respectively arranged at the top end of the bridge road main body (1) and located on the front side and the rear side of the limiting mechanism (5), and the other blocking mechanism (6) is arranged on the front side of the top end of the ramp (2).
2. The height limiting device for bridge warning as claimed in claim 1, wherein: the bridge road body (1) further comprises:
the mounting rack (7) is arranged on the front side of the top end of the bridge road main body (1) in the left-right direction;
the number of the height sensors (8) is a plurality, and the height sensors (8) are respectively installed at the top end of the mounting rack (7);
the signal lamp (9) is arranged at the center of the front side of the top end of the mounting rack (7);
the pressure sensor (10) is embedded into the top end of the bridge road main body (1) along the left-right direction and is positioned right below the mounting rack (7);
the control box (11) is arranged at the left end of the front side of the mounting rack (7), and the control box (11) is electrically connected with the height sensor (8), the signal lamp (9) and the pressure sensor (10) respectively;
panoramic camera (12), install through the support the top right side of bridge road main part (1), panoramic camera (12) and control box (11) electric connection.
3. The height limiting device for bridge warning as claimed in claim 1, wherein: the horizontal movement mechanism (4) includes:
the horizontal moving mechanism shell (41) is arranged at the top ends of the bridge road main body (1) and the ramp (2) along the left-right direction inner cavity, and the horizontal moving mechanism shell (41) is U-shaped;
the first motor (42) is arranged at the left rear part of the inner cavity of the horizontal moving mechanism shell (41) along the front-back direction, and the first motor (42) is electrically connected with the control box (11);
a first rotating shaft (43) which is connected to the output end of the first motor (42) along the front and back direction by screws;
the number of the first belt pulleys (44) is two, and the two first belt pulleys (44) are respectively in interference fit with the front side and the rear side of the outer wall of the first rotating shaft (43);
the number of the second belt pulleys (45) is two, and the two second belt pulleys (45) are respectively and rotatably connected to the front end and the rear end of the right side of the inner cavity of the horizontal moving mechanism shell (41) through pin shafts;
the number of the transmission belts (46) is two, and the left end and the right end of the inner sides of the two transmission belts (46) are respectively sleeved on the outer walls of the front first belt pulley (44) and the rear first belt pulley (45);
the number of the limiting sliding blocks (47) is two, and the two limiting sliding blocks (47) are respectively and fixedly connected to the top ends of the front transmission belt (46) and the rear transmission belt (46);
the number of spacing groove (48), spacing groove (48) is two, two spacing groove (48) are seted up along the left and right direction respectively and are in the both sides around the top of horizontal migration mechanism casing (41), both sides link up with the outer wall and the inner chamber of horizontal migration mechanism casing (41) respectively about the inner chamber of spacing groove (48) mutually, the inner chamber of spacing groove (48) is extended on the top of spacing slider (47).
4. The height limiting device for bridge warning as claimed in claim 1, wherein: the limiting mechanism (5) comprises;
a limiting mechanism shell (51) which is arranged at the top end of the horizontal moving mechanism shell (41) along the front and back direction
The number of the deceleration slopes (52) is two, and the two deceleration slopes (52) are respectively arranged on the front side and the rear side of the limiting mechanism shell (51);
the number of the mounting grooves (53) is two, the two mounting grooves (53) are respectively arranged on the front side and the rear side of the top end of the limiting mechanism shell (51), and the upper side and the lower side of the inner cavity of each mounting groove (53) are respectively communicated with the outer wall and the inner cavity of the limiting mechanism shell (51);
the number of the stop blocks (54) is two, the two stop blocks (54) are respectively connected to the front side and the rear side of an inner cavity of the limiting mechanism shell (51) in a left-right direction in a rotating mode through pin shafts, the top ends of the front stop block (54) and the rear stop block (54) extend into the inner cavities of the front mounting groove (53) and the rear mounting groove (53) respectively, and the longitudinal sections of the stop blocks (54) are triangular;
the number of the first bevel gears (55) is two, and the two first bevel gears (55) are respectively in interference fit with the left sides of the front and rear stoppers (54).
5. A bridge warning height limiting device according to claim 41, wherein: the limiting mechanism (5) further comprises;
the second motor (56) is arranged in front of the left of the inner cavity of the limiting mechanism shell (51) along the front-back direction, and the second motor (56) is electrically connected with the control box (11);
a second rotating shaft (57) which is connected with the output end of the second motor (56) through a screw in the front-back direction;
the first conical gear second conical gear (58) is two, the first conical gear second conical gear (58) is in interference fit with the front side and the rear side of the second rotating shaft (57) respectively, and the first conical gear second conical gear (58) rotates for 180 degrees to be overlapped and is meshed with the front first conical gear (55) and the rear first conical gear (55) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010893118.7A CN112095509A (en) | 2020-08-31 | 2020-08-31 | Bridge warning height limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010893118.7A CN112095509A (en) | 2020-08-31 | 2020-08-31 | Bridge warning height limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112095509A true CN112095509A (en) | 2020-12-18 |
Family
ID=73756693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010893118.7A Withdrawn CN112095509A (en) | 2020-08-31 | 2020-08-31 | Bridge warning height limiting device |
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| Country | Link |
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| CN (1) | CN112095509A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3936412A1 (en) * | 1989-11-02 | 1991-05-08 | Kurt Dipl Ing Karl | Blocking device for restricted parking place - uses blocking lever operated upon entry of vehicle to prevent unauthorised removal |
| JP2012052321A (en) * | 2010-08-31 | 2012-03-15 | Japan Carlit Co Ltd:The | Method of setting guarding instrument for road work and security system for road work |
| CN204589854U (en) * | 2015-04-11 | 2015-08-26 | 温州东联市政工程有限公司 | A kind of road and bridge height limiter |
| CN206039844U (en) * | 2016-09-27 | 2017-03-22 | 成都信息工程大学 | Bridge traffick limit for height limit heavily detects and controlling means |
| CN206956590U (en) * | 2017-05-04 | 2018-02-02 | 西安市政一路桥建设有限公司 | A kind of road and bridge height limiter |
| CN108060642A (en) * | 2017-05-20 | 2018-05-22 | 呼和浩特市市政工程设计研究院 | A kind of intelligent height-limiting early warning system |
-
2020
- 2020-08-31 CN CN202010893118.7A patent/CN112095509A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3936412A1 (en) * | 1989-11-02 | 1991-05-08 | Kurt Dipl Ing Karl | Blocking device for restricted parking place - uses blocking lever operated upon entry of vehicle to prevent unauthorised removal |
| JP2012052321A (en) * | 2010-08-31 | 2012-03-15 | Japan Carlit Co Ltd:The | Method of setting guarding instrument for road work and security system for road work |
| CN204589854U (en) * | 2015-04-11 | 2015-08-26 | 温州东联市政工程有限公司 | A kind of road and bridge height limiter |
| CN206039844U (en) * | 2016-09-27 | 2017-03-22 | 成都信息工程大学 | Bridge traffick limit for height limit heavily detects and controlling means |
| CN206956590U (en) * | 2017-05-04 | 2018-02-02 | 西安市政一路桥建设有限公司 | A kind of road and bridge height limiter |
| CN108060642A (en) * | 2017-05-20 | 2018-05-22 | 呼和浩特市市政工程设计研究院 | A kind of intelligent height-limiting early warning system |
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Application publication date: 20201218 |
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