CN115027357A - Automatic triangular warning board for expressway - Google Patents

Abstract

The invention discloses a self-propelled triangular warning board for a highway, which comprises: the mounting rack is fixedly mounted at the bottom of the automobile; the baffle is arranged on the front side of the bottom of the mounting rack; the mounting plates are arranged on the left side and the right side of the rear end of the bottom of the mounting frame respectively; the PLC is fixedly arranged on the inner walls of the two mounting plates; and the releasing mechanism is fixedly arranged on the outer walls of the two mounting plates and is electrically connected with the PLC. This highway is with triangle warning sign by oneself has realized when emergency vehicle way emergency stop back, and automatic release self-propelled mechanism need not personnel and gets off the operation, avoids the rear to come the car and causes the injury to the personnel of getting off, can expand automatically and fold, is convenient for release and retrieve to can follow emergency vehicle way traffic marking accurately and remove, avoid misoperation to get into other lanes, guarantee the safety of traveling that the rear came the car, satisfy the demand that highway used.

Description

Automatic triangular warning board for expressway

Technical Field

The invention relates to the technical field of traffic safety warning boards, in particular to a self-propelled triangular warning board for an expressway.

Background

Along with the rapid development of global economy, the number of motor vehicles also rapidly increases, the problem of vehicle failure occurs occasionally, according to the relevant regulations of the national road traffic safety law, when the motor vehicles have failure on the expressway, the triangular warning board is arranged at the position 50 meters to 100 meters behind the vehicle on the conventional road, and on the expressway, the warning mark is arranged at the position 150 meters away from the vehicle; if the distance is increased to 200 m in rainy and foggy weather, the triangular warning board needs to be placed at the entrance of the curve when an accident occurs in the curve; when a fault occurs on a slope, the warning board is required to be placed at the top or bottom of the accident slope;

the automobile triangular warning board is a passive reflector made of plastic reflective materials, and if a driver encounters sudden failure, parking and maintenance or an accident on the road, other vehicles can be reminded of avoiding by utilizing the return reflective performance of the triangular warning board so as to avoid secondary accidents;

the existing warning board still has the following problems when in use: when the vehicle breaks down and stops on an emergency lane, the warning board needs to be manually released, the vehicle cannot be operated in the vehicle, and a driver has certain risk when opening a vehicle door; need manual control moving direction and distance, unable direction automatic movement according to the road if personnel misoperation, lead to the warning sign to remove to other lanes, cause the traffic accident easily, have certain potential safety hazard, in addition, current warning sign is unable automatic folding and expand, can't satisfy the demand that highway used.

Disclosure of Invention

The invention aims to provide a self-propelled triangular warning board for a highway, which at least solves the problems that the prior art cannot be automatically released and folded and needs manual control to move.

In order to achieve the purpose, the invention provides the following technical scheme: a self-propelled triangular warning board for a highway comprises: the mounting rack is fixedly mounted at the bottom of the automobile; the baffle is arranged on the front side of the bottom of the mounting rack; the mounting plates are arranged on the left side and the right side of the rear end of the bottom of the mounting frame respectively; the PLC is fixedly arranged on the inner walls of the two mounting plates; the releasing mechanism is fixedly arranged on the outer walls of the two mounting plates and is electrically connected with the PLC; the self-moving mechanism is arranged at the bottom of the releasing mechanism, is connected with the PLC through a wireless signal and limits the self-moving mechanism through the baffle;

the release mechanism includes: the two lifting assemblies are fixedly arranged on the outer walls of the two mounting plates respectively and are electrically connected with the PLC; the lifting seats are fixedly arranged at the bottom ends of the two lifting components, and the self-propelled mechanism is arranged in an inner cavity of the lifting seat.

As a further improvement of this technical solution, the lifting assembly comprises: the two connecting blocks are fixedly arranged on the outer sides of the mounting plate and the lifting seat respectively; the connecting rods are rotatably arranged on the front side of the top and the rear side of the bottom of the outer side of the connecting block respectively, and the two connecting rods are parallel to each other; one end of the pneumatic spring rod is rotatably installed at the rear side of the connecting rod positioned at the top, the other end of the pneumatic spring rod is rotatably installed at the front side of the connecting rod positioned at the bottom and is electrically connected with the PLC, the pneumatic spring rod comprises a pressure cylinder, a piston rod, a piston, a sealing guide sleeve and fillers, and the pneumatic spring rods of the two lifting assemblies are parallel to each other.

As a further improvement of the present technical solution, the self-propelled mechanism includes: the base is arranged at the bottom of the inner cavity of the lifting seat; the first omnidirectional wheels are four in number and are respectively and rotatably arranged in the middle of the peripheral outer wall of the base; the four first motors are fixedly arranged at the bottom of the base respectively, and the output ends of the four first motors are fixedly connected with the four first omnidirectional wheels respectively; the batteries are fixedly arranged at the bottom of the inner cavity of the base respectively; the signal transmission module is fixedly arranged on the rear side of the inner cavity of the base, and the four first motors and the plurality of batteries are electrically connected with the signal transmission module; the tracing assembly is arranged at the bottom of the inner cavity of the base and is electrically connected with the signal transmission module; the top cover is fixedly arranged at the top of the base; the folding assembly is fixedly arranged at the top of the top cover and is electrically connected with the signal transmission module; the camera, quantity is two, set up respectively in both ends about the front side of base, and with signal transmission module electric connection.

As a further improvement of the present technical solution, the tracking assembly includes: the sliding rail is fixedly arranged at the bottom of the inner cavity of the base; the first telescopic rod is slidably mounted at the rear side of the sliding rail; the second telescopic rod is slidably arranged at the rear side of the first telescopic rod; the mounting frame is fixedly mounted at the left end of the second telescopic rod; the second omnidirectional wheel is rotatably arranged on the side wall of the inner cavity of the mounting frame; the output end of the second motor is fixedly connected with the second omnidirectional wheel and is electrically connected with the signal transmission module; the two gray level sensors are respectively fixedly arranged on the left side and the right side of the second motor and are electrically connected with the signal transmission module; the groove is formed in the rear end of the left side of the bottom of the base, and the second omnidirectional wheel is connected with the groove in an adaptive inserting mode.

As a further improvement of the present solution, the folding assembly includes: the rotating frame is rotatably arranged on the front side of the top cover; one end of the electric telescopic rod is rotatably arranged at the bottom end of the rear side of the inner cavity of the top cover, and the other end of the electric telescopic rod is rotatably arranged at the rear side of the rotating frame and is electrically connected with the signal transmission module; the number of the telescopic frames is three, every two telescopic frames are connected in a sliding manner and are arranged at the bottom of the rotating frame in a sliding manner; the two support blocks are fixedly arranged on the front side and the rear side of the bottom of the inner cavity of the rotating frame respectively, and the two telescopic frames positioned at the bottom are limited, so that the two telescopic rods can slide left and right; the number of the teeth is a plurality, and the teeth are divided into two groups and are respectively arranged on the outer sides of the two telescopic frames positioned at the bottom from left to right; the first gears are rotatably arranged at the tops of the two supporting blocks respectively and are matched and meshed with the two groups of teeth respectively; the second gear is rotatably arranged at the top of the inner cavity of the rotating frame and is in fit engagement with the two first gears; the output end of the third motor is fixedly connected with the second gear and is electrically connected with the signal transmission module; the two end covers are respectively arranged at the left end and the right end of the rotating frame; and the flashing light is fixedly arranged on the front side of the rotating frame and is electrically connected with the signal transmission module.

As a further improvement of the technical scheme, the main body of the telescopic frame is composed of two straight plates, an included angle between the straight plates is 60 degrees, the two adjacent straight plates of the telescopic frame are slidably connected, and the telescopic frame is three and forms a triangular structure capable of stretching.

As a further improvement of the technical scheme, the outer surface of the telescopic frame is provided with a lamp strip and a reflective coating.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the PLC 7 controls the two pneumatic spring rods 423 to push the two connecting rods 422, so that the two connecting rods 422 rotate downwards, the lifting seat 41 descends until the bottom of the lifting seat 41 is contacted with the ground, the self-propelled mechanism 5 can be pulled out from the lifting seat 41, and the two groups of first omnidirectional wheels 52 in different directions can drive the self-propelled mechanism 5 to move in any direction, so that the self-propelled mechanism is automatically released after emergency stop in an emergency lane is realized, personnel do not need to get off the vehicle for operation, and the injury of coming vehicles at the rear to get off the vehicle is avoided.

2. According to the invention, the camera 59 is used for searching the traffic marking of the emergency lane, the PLC 7 controls the output end of the second motor 566 through the signal transmission module 55 to drive the second omnidirectional wheel 565 to rotate, so that the first telescopic rod 562 and the second telescopic rod 563 are pulled to slide and unfold to the left, the two gray sensors 567 can detect the traffic marking of the emergency lane, and the two gray sensors 576 are kept above the traffic marking, so that the self-propelled mechanism 5 can accurately move to the vehicle, therefore, the self-propelled mechanism can accurately move along the traffic marking of the emergency lane, the phenomenon that operation errors enter other lanes is avoided, and the driving safety of vehicles coming from the rear is ensured.

3. According to the invention, the PLC 7 controls the output end of the electric telescopic rod 582 to push the rotating frame 581 to rotate upwards through the signal transmission module 55, the output end of the third motor 587 drives the second gear 587 to rotate, under the meshing action of the first gear 586 and the teeth 585, the two telescopic frames 583 positioned at the bottom can be driven to move inwards or outwards at the same time, when the two telescopic frames 583 positioned at the bottom move outwards at the same time, the extension of the triangular structure becomes larger, and the lamp belt and the reflective coating on the surface of the telescopic frames 583 can warn a vehicle coming from behind, so that the telescopic frame can be unfolded and folded automatically, release and recovery are facilitated, and the use requirement of an expressway is met.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a storage state of the present invention;

FIG. 3 is a right side view of the present invention;

FIG. 4 is a structural diagram of a storage state of the bicycle mechanism;

FIG. 5 is a schematic view of the working state of the bicycle;

FIG. 6 is a right side view of the operating state of the bicycle mechanism;

FIG. 7 is a top view of the bicycle mechanism in the operating state;

FIG. 8 is a top view of the base mounting location;

FIG. 9 is a top cross-sectional view of the folding assembly;

fig. 10 is a schematic structural view of the telescopic frame.

In the figure: 2. mounting block, 3, baffle, 4, release mechanism, 41, lifting seat, 42, lifting component, 421, connecting block, 422, connecting rod, 423, pneumatic spring rod, 5, self-propelled mechanism, 51, base, 52, first omni-directional wheel, 53, first motor, 54, battery, 55, signal transmission module, 56, tracking component, 561, sliding rail, 562, first telescopic rod, 563, second telescopic rod, 564, mounting frame, 565, second omni-directional wheel, 566, second motor, 567, gray sensor, 568, groove, 57, top cover, 58, folding component, 581, rotating frame, 582, electric telescopic rod, 583, telescopic frame, 584, supporting block, 585, tooth, 586, first gear, 587, second gear, 588, third motor, 589, end cover, 5810, flashing light, 59, camera, 6, mounting plate, 7, PLC controller.

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.

Referring to fig. 1-10, the present invention provides a technical solution: a self-propelled triangular warning board for a highway comprises: the automobile self-propelled mechanism comprises a mounting frame 2, baffles 3, a releasing mechanism 4, a self-propelled mechanism 5, mounting plates 6 and a PLC (programmable logic controller) 7, wherein the mounting frame 2 is fixedly installed at the bottom of an automobile, the baffles 3 are arranged on the front side of the bottom of the mounting frame 2, the two mounting plates 6 are respectively arranged on the left side and the right side of the rear end of the bottom of the mounting frame 2, the PLC 7 is fixedly installed on the inner walls of the two mounting plates 6, the releasing mechanism 4 is fixedly installed on the outer walls of the two mounting plates 6 and is electrically connected with the PLC 7, the self-propelled mechanism 5 is installed at the bottom of the releasing mechanism 4, the self-propelled mechanism 5 is connected with the PLC 7 through a wireless signal, and the baffles 3 limit the self-propelled mechanism 5;

the release mechanism 4 includes: lift seat 41 and lifting unit 42, lifting unit 42 quantity is two, respectively fixed mounting in the outer wall of two mounting panels 6, and all with PLC controller 7 electric connection, lift seat 41 fixed mounting in the bottom of two lifting unit 42, and self-propelled mechanism 5 installs in the inner chamber of lift seat 41.

As shown in fig. 1-3, in order to realize the automatic release function, in this embodiment, the lifting assembly 42 further includes: connecting block 421, connecting rod 422 and pneumatic spring rod 423, the number of connecting block 421 is two, fixed mounting is respectively in the outside of mounting panel 6 and lift seat 41, the number of connecting rod 422 is two, rotatably install respectively in the top front side and the bottom rear side in the outside of connecting block 421, and two connecting rods 422 are parallel to each other, pneumatic spring rod 423 one end rotatably installs in the rear side of the connecting rod 422 that is located the top, the other end rotatably installs in the front side of the connecting rod 422 that is located the bottom, and with PLC controller 7 electric connection, pneumatic spring rod 423 includes the pressure cylinder, the piston rod, the piston, sealed uide bushing and filler, and two pneumatic spring rods 423 of lift subassembly 52 are parallel to each other, PLC controller 7 controls two pneumatic spring rods 423 and promotes two connecting rods 422, thereby make two connecting rods 422 rotate downwards, lift seat 41 descends.

Preferably, the self-propelled mechanism 5 further comprises: the base 51, the first omni wheel 52, the first motor 53, the battery 54, the signal transmission module 55, the tracking assembly 56, the top cover 57, the folding assembly 58 and the camera 59, wherein the base 51 is installed at the bottom of the inner cavity of the lifting seat 41, the number of the first omni wheels 52 is four, the first omni wheels are respectively and rotatably installed at the middle positions of the peripheral outer walls of the base 51, the first omni wheel 52 comprises a hub and a driven wheel, 3 or more than 3 hub teeth are uniformly arranged at the outer circumference of the hub, a driven wheel is installed between every two hub teeth, the radial direction of the driven wheel is vertical to the tangential direction of the outer circumference of the hub, the rotation of the hub can be driven to move towards the rotation direction of the hub, the direction of the driven wheel can be freely moved, the two groups of the first omni wheels 52 in different directions can drive the base 51 to move in any direction, the number of the first motors 53 is four, and are respectively and fixedly installed at the bottom of the base 51, the output ends of the four first motors 53 are respectively fixedly connected with the four first omni wheels 52, the batteries 54 are respectively fixedly installed at the bottom of the inner cavity of the base 51, the signal transmission module 55 is fixedly installed at the rear side of the inner cavity of the base, the four first motors and the batteries 54 are electrically connected with the signal transmission module 55, the tracing component 56 is arranged at the bottom of the inner cavity of the base 51 and is electrically connected with the signal transmission module 55, the top cover 57 is fixedly installed at the top of the base 51, the folding component 58 is fixedly installed at the top of the top cover 57 and is electrically connected with the signal transmission module 55, the number of the cameras 59 is two, the cameras are respectively arranged at the left end and the right end of the front side of the base 51 and are electrically connected with the signal transmission module 55.

5-8, to effect automatic movement along an emergency lane traffic line, in this embodiment, the tracking assembly 56 further includes: a slide rail 561, a first extension rod 562, a second extension rod 563, a mounting frame 564, a second omni wheel 565, a second motor 566, a gray sensor 567 and a groove 568, wherein the slide rail 561 is fixedly mounted at the bottom of an inner cavity of the base 51, the first extension rod 562 is slidably mounted at the rear side of the slide rail 561, the second extension rod 563 is slidably mounted at the rear side of the first extension rod 562, the mounting frame 564 is fixedly mounted at the left end of the second extension rod 563, the second omni wheel 565 is rotatably mounted at the sidewall of the inner cavity of the mounting frame 564, the second motor 566 is fixedly mounted at the rear side of the mounting frame 564, an output end of the second motor 566 is fixedly connected with the second omni wheel 565 and electrically connected with the signal transmission module 55, the number of the gray sensors 567 is two, the two gray sensors are respectively and fixedly mounted at the left and right sides of the second motor 566 and electrically connected with the signal transmission module 55, the groove 568 is arranged at the rear end of the left side of the bottom of the base 51, and second omniwheel 565 and recess 568 looks adaptation are pegged graft, and PLC controller 7 passes through the output of signal transmission module 55 control second motor 566 and drives second omniwheel 565 rotatory to the sliding expansion of left side is moved to the pulling first telescopic link 562 and second telescopic link 563, and two grey level sensor 567 can detect the traffic marking in emergent lane.

As shown in fig. 9-10, in order to automatically fold and unfold the warning board, in this embodiment, the folding assembly 58 further comprises: the rotating frame 581, the electric telescopic rod 582, the telescopic frame 583, the supporting block 584, the teeth 585, the first gear 586, the second gear 587, the third motor 588, the end cover 589 and the flashing light 5810, wherein the rotating frame 581 is rotatably installed at the front side of the top cover 57, one end of the electric telescopic rod 582 is rotatably installed at the bottom end of the rear side of the inner cavity of the top cover 57, the other end of the electric telescopic rod 582 is rotatably installed at the rear side of the rotating frame 581, and is electrically connected with the signal transmission module 55, the PLC controller 7 controls the output end of the electric telescopic rod 582 to push the rotating frame 581 to rotate upwards through the signal transmission module 55, the number of the telescopic frames 583 is three, the two telescopic frames are slidably connected and slidably installed at the bottom of the rotating frame 581, the number of the supporting blocks 584 is two and is respectively fixedly installed at the front side and the rear side of the bottom of the inner cavity of the rotating frame 581, and limits the two telescopic frames 583 at the bottom, so that the two telescopic rods 583 can slide left and right, the number of the teeth 584 is several, the teeth 584 are divided into two groups which are respectively arranged at the outer sides of the two telescopic frames 583 at the bottom from left to right, the number of the first gears 586 is two, the first gears 586 are respectively and rotatably arranged at the tops of the two supporting blocks 584 and are respectively and adaptively engaged with the two groups of teeth 584, the second gear 587 is rotatably arranged at the top of the inner cavity of the rotating frame 581 and is adaptively engaged with the two first gears 586, the third motor 588 is fixedly arranged at the top end of the rotating frame 581, the output end of the third motor 588 is fixedly connected with the second gear 587 and is electrically connected with the signal transmission module 55, the number of the end covers 589 is two and are respectively arranged at the left end and the right end of the rotating frame 581, the output end of the third motor 587 drives the second gear 587 to rotate, under the engagement action of the first gears 586 and the teeth 585, the two telescopic frames 583 at the bottom can be simultaneously driven to move towards the inner side or the outer side, the explosion lamp 5810 is fixedly installed on the front side of the rotating frame 581, and is electrically connected with the signal transmission module 55.

As preferred scheme, furthermore, the main part of expansion bracket 583 constitutes for two straight boards, and the contained angle is 60 degrees between two straight boards, connects between two adjacent expansion bracket 583's the straight board slidable, and three expansion bracket 583 constitutes a triangle-shaped structure that can stretch out and draw back, moves to the inboard simultaneously when two expansion bracket 583 that are located the bottom, and the triangle-shaped structure reduces, moves to the outside simultaneously when two expansion bracket 583 that are located the bottom, and the triangle-shaped structure grow, and the surface of expansion bracket 583 is provided with the lamp area to be provided with reflective coating.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

Step one, when an automobile breaks down at a high speed and stops at an emergency lane, the PLC 7 controls the two pneumatic spring rods 423 to push the two connecting rods 422, so that the two connecting rods 422 rotate downwards, the lifting seat 41 descends until the bottom of the lifting seat 41 is contacted with the ground, the self-propelled mechanism 5 can be pulled out from the lifting seat 41, and the two groups of first omnidirectional wheels 52 in different directions can drive the self-propelled mechanism 5 to move in any direction;

step two, after the self-propelled mechanism 5 is driven out, the camera 59 is used for searching a traffic marking of an emergency lane, the PLC 7 controls the output end of the second motor 566 through the signal transmission module 55 to drive the second omnidirectional wheel 565 to rotate, so that the first telescopic rod 562 and the second telescopic rod 563 are pulled to slide and unfold to the left, the two gray level sensors 567 can detect the traffic marking of the emergency lane, the two gray level sensors 576 are kept above the traffic marking, and therefore the self-propelled mechanism 5 can be ensured to accurately move to the vehicle;

step three, the PLC controller 7 controls the output end of the electric telescopic rod 582 through the signal transmission module 55 to push the rotating frame 581 to rotate upward, the output end of the third motor 587 drives the second gear 587 to rotate, under the meshing action of the first gear 586 and the teeth 585, the two telescopic frames 583 located at the bottom can be driven to move to the inner side or the outer side simultaneously, when the two telescopic frames 583 located at the bottom move to the outer side simultaneously, the extension of the triangular structure becomes large, and the lamp strip and the reflective coating on the surface of the telescopic frame 583 can warn a vehicle coming from the rear;

the invention can be automatically released, folded and unfolded, does not need personnel to get off, ensures the safety of personnel, can accurately move along the traffic marking of the emergency lane, avoids misoperation to enter other lanes, and ensures the driving safety of a vehicle coming from the rear.

The foregoing embodiments are provided merely to illustrate the technical concept and features of the present invention and to enable those skilled in the art to understand the present invention and implement the present invention, and not to limit the scope of the present invention, wherein in the description of the present invention, it is to be understood that the indicated orientation or position relationship is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.

Claims (8)

1. A self-propelled triangular warning board for a highway comprises: mounting bracket (2), baffle (3), two mounting panels (6) and PLC controller (7), mounting bracket (2) fixed mounting is in the car bottom, baffle (3) set up in the bottom front side of mounting bracket (2), two mounting panel (6) set up respectively in the bottom rear end left and right sides of mounting bracket (2), PLC controller (7) fixed mounting is in the inner wall of two mounting panels (6), its characterized in that still includes: a release mechanism (4) and a self-moving mechanism (5);

the releasing mechanism (4) is fixedly arranged on the outer walls of the two mounting plates (6) and is electrically connected with the PLC (7), the self-running mechanism (5) is arranged at the bottom of the releasing mechanism (4), the self-running mechanism (5) is connected with the PLC (7) through a wireless signal, and the self-running mechanism (5) is limited by the baffle (3);

the release mechanism (4) comprises: a lifting seat (41) and a lifting component (42);

the number of the lifting components (42) is two, the lifting components are respectively and fixedly installed on the outer wall of the two mounting plates (6) and are electrically connected with the PLC (7), the lifting seats (41) are fixedly installed on the bottom ends of the two lifting components (42), and the self-propelling mechanisms (5) are installed in the inner cavities of the lifting seats (41).

2. The triangular warning sign for expressway of claim 1, wherein: the lift assembly (42) includes:

the number of the connecting blocks (421) is two, and the two connecting blocks are respectively and fixedly arranged on the outer sides of the mounting plate (6) and the lifting seat (41);

the connecting rods (422) are rotatably arranged on the front side of the top and the rear side of the bottom of the outer side of the connecting block (421), and the two connecting rods (422) are parallel to each other;

and one end of the pneumatic spring rod (423) is rotatably arranged at the rear side of the connecting rod (422) positioned at the top, the other end of the pneumatic spring rod is rotatably arranged at the front side of the connecting rod (422) positioned at the bottom, and the pneumatic spring rod is electrically connected with the PLC (7).

3. The triangular warning sign for expressway of claim 2, wherein: the pneumatic spring rods (423) comprise pressure cylinders, piston rods, pistons, sealing guide sleeves and fillers, and the pneumatic spring rods (423) of the two lifting assemblies (52) are parallel to each other.

4. The triangular warning sign for expressway according to claim 1, wherein: the self-running mechanism (5) comprises:

the base (51) is arranged at the bottom of the inner cavity of the lifting seat (41);

the number of the first omnidirectional wheels (52) is four, and the first omnidirectional wheels are respectively and rotatably arranged in the middle of the peripheral outer wall of the base (51);

the number of the first motors (53) is four, the first motors are respectively and fixedly arranged at the bottom of the base (51), and the output ends of the four first motors (53) are respectively and fixedly connected with the four first omnidirectional wheels (52);

a plurality of batteries (54) which are respectively and fixedly arranged at the bottom of the inner cavity of the base (51);

the signal transmission module (55) is fixedly arranged on the rear side of the inner cavity of the base, and the four first motors and the plurality of batteries (54) are electrically connected with the signal transmission module (55);

the tracing component (56) is arranged at the bottom of the inner cavity of the base (51) and is electrically connected with the signal transmission module (55);

a top cover (57) fixedly mounted on the top of the base (51);

the folding assembly (58) is fixedly arranged on the top of the top cover (57) and is electrically connected with the signal transmission module (55);

the number of the cameras (59) is two, the cameras are respectively arranged at the left end and the right end of the front side of the base (51), and the cameras are electrically connected with the signal transmission module (55).

5. The triangular warning sign for expressway of claim 4, wherein: the tracking assembly (56) includes:

a slide rail (561) fixedly mounted at the bottom of the inner cavity of the base (51);

a first telescopic rod (562) slidably mounted to a rear side of the slide rail (561);

a second expansion link (563) slidably mounted to a rear side of the first expansion link (562);

a mounting frame (564) fixedly mounted at the left end of the second telescopic rod (563);

a second omni wheel (565) rotatably mounted to a sidewall of the inner cavity of the mounting frame (564);

the second motor (566) is fixedly arranged at the rear side of the mounting frame (564), and the output end of the second motor (566) is fixedly connected with the second omnidirectional wheel (565) and is electrically connected with the signal transmission module (55);

two gray level sensors (567) which are respectively fixedly arranged at the left side and the right side of the second motor (566) and are electrically connected with the signal transmission module (55);

the groove (568) is formed in the rear end of the left side of the bottom of the base (51), and the second omnidirectional wheel (565) is connected with the groove (568) in a matched and inserting mode.

6. The triangular warning sign for expressway according to claim 4, wherein: the folding assembly (58) comprises:

a rotating frame (581) rotatably mounted on the top front side of the top cover (57);

the electric telescopic rod (582), one end is installed on the bottom end of the rear side of the cavity of the top cover (57) rotatably, another end is installed on the rear side of the rotating frame (581) rotatably, and connect with the electrical behavior of the said signal transmission module (55);

the number of the expansion frames (583) is three, every two expansion frames are connected in a sliding mode, and the expansion frames are installed at the bottom of the rotating frame (581) in a sliding mode;

two supporting blocks (584) are respectively fixedly mounted on the front side and the rear side of the bottom of the inner cavity of the rotating frame (581), and the two expansion frames (583) positioned at the bottom are limited, so that the two expansion rods (583) can slide left and right;

a plurality of teeth (584) are arranged on the outer sides of the two expansion brackets (583) at the bottom in two groups from left to right;

the number of the first gears (586) is two, the first gears are respectively rotatably installed at the tops of the two supporting blocks (584), and the first gears are respectively engaged with the two groups of teeth (584) in a matching manner;

the second gear (587) is rotatably arranged at the top of the inner cavity of the rotating frame (581), and is matched and meshed with the two first gears (586);

the third motor (588) is fixedly arranged at the top end of the rotating frame (581), and the output end of the third motor (588) is fixedly connected with the second gear (587) and is electrically connected with the signal transmission module (55);

the number of the end covers (589) is two, and the two end covers are respectively arranged at the left end and the right end of the rotating frame (581);

and the flashing light (5810) is fixedly arranged on the front side of the rotating frame (581), and is electrically connected with the signal transmission module (55).

7. The triangular warning sign for expressway of claim 6, wherein: the main part of expansion bracket (583) constitutes for two straight boards, two contained angle is 60 degrees between the straight board, and two are adjacent connect slidable between the straight board of expansion bracket (583), and is three one can carry out the triangle-shaped structure that stretches out and draws back in expansion bracket (583) constitution.

8. The triangular warning sign for expressway of claim 7, wherein: the outer surface of the telescopic frame (583) is provided with a lamp strip and a reflective coating.

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