KR20220040283A - Road Traffic Signal Equipment - Google Patents

Abstract

The present invention relates to a road traffic indicator, which informs a driver of road conditions so as to induce safe driving of the driver and protect a worker at the same time when various works including repair or pavement of various roads including highways. The configuration includes: a body which can be mounted on a container of a freight vehicle or put down from the container to the ground; a rotating body with a height adjustable boom installed on an upper part of the body; a signal means installed in connection with the height adjustable boom located on a top; and a control unit for controlling the body, the rotating body, and the signal means.

Description

Road Traffic Signal Equipment

The present invention relates to a road traffic display device that informs the driver of the road condition so as to induce safe driving of the driver and protect the worker at the same time when constructing various roads on which automobiles, including highways, travel.

In general, during pavement and repair work on roads such as highways and national roads, various types of safety driving indicators (travel stop and warning lights, direction indicators) are mounted at the rear of the construction site for the safety of drivers.

However, the rear vehicle can recognize that work is being carried out in the front by looking at the safety driving indicator light, but when a large vehicle or an obstacle obstructs the driver's front view, the driver does not receive guidance on the available lane and causes an instantaneous collision with the work vehicle. is occurring

Therefore, when controlling the vehicle, workers in the workplace with walkie-talkies exchange traffic conditions with each other and use a method to directly signal hand or use a robot to guide the driving direction of the vehicle. There is a limitation in recognizing it, and there are disadvantages in that the risk of safety accidents is large.

In consideration of the above, a mobile traffic signal device (registration number 10- 1347543) is provided, but there was a problem in that it was not possible to clearly guide the control and drivable lanes for roads with three or more lanes.

Accordingly, in recent years, in order to solve the above problems, the mobile traffic signal device of Korean Patent No. 10-1931178 as shown in FIGS. 1 and 2 has been provided, and its configuration is as follows.

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It consists of a lower link 12 rotatably mounted on the base frame 11 and an upper link 13 hinged to the upper end of the lower link 12, and is vertically extended by hydraulic pressure. boom (10);

The hollow main frame 21 hinged to the upper end of the upper link 13 of the elevating vertical boom 10 through the first connection bracket 14, and the main frame 21 inside the main frame 21 to slide forward and backward A horizontal slide boom 20 consisting of a hollow first sub-frame 22 and a second sub-frame 23 that is internally installed to be able to slide forward and backward in the first sub-frame 22;

a rotary boom 30 that is angularly rotatably mounted to the front end of the second sub-frame 23 of the slide horizontal boom 20;

It is connected between the second sub-frame 23 of the slide horizontal boom stand 20 and the rotary boom stand 30, and the rotation radius of the rotary boom stand 30 forms an acute angle with the second sub-frame 23, or parallel Rotating boom stand driving device 40 for adjusting the use position forming the;

a first traffic signal guide plate 50 mounted on the first connection bracket 14 mounted on the upper end of the upper link 13 of the elevating vertical boom 10;

a second traffic signal guide plate (60) mounted on the front end of the first sub-frame (22) of the slide horizontal boom (20);

A third traffic signal guide plate 70 mounted on the front end of the rotary boom stand (30);

Crane hydraulic and electric driving unit 80 for providing a driving force to the lifting vertical boom stand 10, the slide horizontal boom stand 20 and the rotary boom stand 30; and

a signal controller 90 for applying a lane closing signal or a signal for a drivable lane to the first traffic signal guide plate 50, the second traffic signal guide plate 60, and the third traffic signal guide plate 70; It consists of including

The conventional mobile traffic signal device having the above configuration can be used only in a state of being mounted on a vehicle and has a problem that it cannot be put down on the ground, and a cylinder must be used to operate the vertical boom 10 and the horizontal boom 20. Accordingly, there was a problem in that the load of the vertical boom stand 10 and the horizontal boom stand 20 becomes heavy.

Korea Patent Publication No. 10-1347543: Mobile traffic signal device Korean Patent Publication No. 10-1931178: Mobile Traffic Signal Device Korea Patent Publication No. 10-1703493: Urban traffic light pole mounting bracket

The present invention was invented to solve the above problems, the purpose of which is

First, the main body of the road traffic display device can be operated by mounting it in the loading box of the truck, or by placing it on the ground from the loading box of the truck and rotating it in a desired direction,

Second, it is possible to facilitate transport of the road traffic display device by folding the multi-stage height adjustable boom and horizontal boom to ensure that the floor height (volume) is minimized and secured to the rotating body.

Third, the management agency can visually check and instruct the construction site or traffic condition of the road under construction;

Fourth, by simplifying the structure of the horizontal boom located on the road to reduce the weight and maximize the length extension at the same time to provide a road traffic display device that can give a signal whether driving due to construction or not to each of a plurality of lanes. there is.

The problem solving means configuration of the present invention for achieving the above object is,

A first body cylinder 110 for drawing in and withdrawing rods in both directions is installed at the front and rear sides, and a second body cylinder 120 for drawing in and withdrawing rods in the vertical direction is installed in the first body cylinder. The body 100 is mounted on the loading box or configured to be put down to the ground from the loading box;

It is installed to be rotated by the rotating means 240 on the upper part of the main body, and a plurality of height adjustment boom stands 210 are installed in the front, and the upper and lower ends of each height adjustment boom stand are angled by the joint 220 so as to be rotated. The rotating body 200 is installed, and the height adjustment cylinder 230 is connected and installed between the height adjustment booms of each stage;

A traffic light 320 installed in connection with the height adjustable boom located at the top to inform whether the vehicle in the corresponding lane is proceeding is installed in each of the plurality of stages of the horizontal boom 310, and the horizontal boom of the plurality of stages is installed so as to be adjustable in length. and the signal means 300 are installed to overlap each other without colliding with each other when the length of each horizontal boom is adjusted;

a control unit 400 for controlling the main body, the rotating body, and the signal means; It consists of a composition comprising

As described above, the road traffic display device having the above configuration reduces the weight by simplifying the structure of the horizontal boom stand located on the road, and at the same time maximizes the length extension, so that the driving due to the presence or absence of construction in each of a plurality of lanes. Possible signal can be given, and the main body of the road traffic indicator can be mounted and operated in the loading box of the truck, or it can be operated by placing it on the ground from the loading box of the truck and rotating it in a desired direction. By folding the horizontal boom so that it can be secured and protected on the rotating body with the minimum floor height (volume), it is possible to facilitate transport of the road traffic display device and visually check the construction site or traffic condition of the road under construction at the management agency. and has a directing effect.

1 is a perspective view showing a state of use of a conventional road traffic display device;
2 is a perspective view of a state in which a conventional road traffic display device is loaded in a vehicle;
3 is a perspective view of the road traffic display device of the present invention before use in a state mounted on a vehicle;
4 is a perspective view showing the use of the road traffic display device of the present invention in a state mounted on a vehicle;
5 is a perspective view showing a state in which the road traffic display device of the present invention is used on the ground;
6 is an excerpted perspective view for explaining the configuration of the main body and the rotating body in the road traffic display device of the present invention;
7a and 7b are an excerpted perspective view for explaining the action of the folding means in the road traffic display device of the present invention;
8a and 8b are an excerpted perspective view for explaining the positional movement relationship of the traffic light installed on the horizontal boom in the road traffic display device of the present invention;
9a and 9b are excerpted side views for explaining the configuration of the wire support means in the road traffic display device of the present invention;
10 is a block diagram showing the configuration of a road traffic display device control unit according to the present invention.

The present invention relates to a road traffic display device that informs a driver of road conditions so as to induce safe driving of the driver and protect workers when constructing various roads on which automobiles, including highways, run, and the accompanying drawings An embodiment will be described with reference to the following.

- under -

In the road traffic display device of the present invention, as shown in FIGS. 3 to 10 , a first body cylinder 110 for drawing in and withdrawing a rod in both directions is installed at the front and rear sides, and the rod is installed in the first body cylinder in the vertical direction. a main body 100 configured to be mounted on the loading box of a freight vehicle by installing a second body cylinder 120 that is drawn in and withdrawn into or to be put down from the loading box to the ground;

It is installed to be rotated by the rotating means 240 on the upper part of the main body, and a plurality of height adjustment boom stands 210 are installed in the front, and the upper and lower ends of each height adjustment boom stand are angled by the joint 220 so as to be rotated. The rotating body 200 is installed, and the height adjustment cylinder 230 is connected and installed between the height adjustment booms of each stage;

A traffic light 320 installed in connection with the height adjustable boom located at the top to inform whether the vehicle in the corresponding lane is proceeding is installed in each of the plurality of stages of the horizontal boom 310, and the horizontal boom of the plurality of stages is installed so as to be adjustable in length. and the signal means 300 are installed to overlap each other without colliding with each other when the length of each horizontal boom is adjusted;

a control unit 400 for controlling the main body 100, the rotating body 200, and the signal means 300; is composed of

In the above configuration, the main body 100, as shown in FIGS. 3 to 5, can be mounted on the loading box of a freight vehicle or put down to the ground from the loading box to be used. In one embodiment when laying down, by operating the hydraulic pressure supply means 260 from the control unit 400, the rod of the first main body cylinder 110 is drawn out from both ends of the front and rear sides of the main body 100, that is, both ends of the loading box of the freight car, and , after which the second body cylinder 120 is operated to draw out the rod of the second body cylinder 120 in the ground direction, and then the rod of the second body cylinder 120 is supported on the ground and the body 100 is also If it is lifted from the loading box of the cargo vehicle of 4 and separated from the loading box, drive the truck to remove the loading box from the main body 100 and use it as it is, or adjust the height of the second body cylinder 120 to use it.

In addition, when the body 100 placed on the ground is to be mounted in the loading box of the freight vehicle, the operation may be reversed to when the body 100 mounted in the loading box of the freight vehicle is put down on the ground.

And the first body cylinder 110 and the second body cylinder 120 can use both a hydraulic cylinder or an air cylinder, and the second body cylinder 120 is the front end of the rods on both sides of the first body cylinder 110 . It is preferably installed so as to be detachably coupled through the fixing means 130 to the second body cylinder 120, and a support plate 140 supported on the bottom surface is installed at the lower end of the rod of the second body cylinder 120.

It is preferable that the fixing means 130 use a clamp for fixing the first body cylinder 110 and the second body cylinder 120 . In addition, the first body cylinder 110 and the second body cylinder 120 may be any structural surface capable of being detachably installed.

In addition, the support plate 140 installed at the lower end of the rod of the second body cylinder 120, in consideration of the uneven ground, the support plate 140 is angled from the lower end of the rod of the second body cylinder 120. The support plate 140. It is preferable to install

In addition, the first body cylinder 110 is provided with a case 150 for accommodating and protecting the first body cylinder 110 at the front and rear sides of the body 100 , and the first body cylinder inside the case 150 . (110) can be installed to be accommodated, and the case 150 as described above can be used as a staircase going up from the ground or the floor of the loading box of the freight car to the main body 100 and the rotating body 200.

In addition, the rotating body 200 of the present invention is installed to be rotated by a rotating means 240 on the upper portion of the main body 100 as shown in FIG. The height adjustment boom stand 210 of the stage is installed, and the upper and lower ends of each height adjustment boom stand 210 are installed to be angularly adjusted by the joint part 220, and a height adjustment cylinder is installed between the height adjustment boom stands 210 of each stage. (230) is connected and installed to adjust the height of the height adjustment boom stand 210 according to the construction site, as well as after the construction is finished, as shown in FIG. 3, the height adjustment boom stand 210 of each stage and described below By folding the horizontal boom stand 310 to minimize the floor height, that is, the volume, it was made to be conveniently and easily loaded in the loading box of the freight car.

In the rotating body 200 as described above, the rotating means 240 includes a rotating shaft 241 that is fixedly installed by connecting the main body 100 and the rotating body 200, as shown in FIG. 6, and the rotating shaft 241. It is composed of a forward/reverse motor 242 which rotates the rotating body 200 by transmitting rotational power to the rotating shaft 241 to rotate the rotating shaft 241 .

In addition, in the rotating body 200, the height adjusting boom 210 and the horizontal boom stand 310 of the plurality of stages are folded and seated, and the floor height (volume) of the folded height adjusting bar 210 and the horizontal boom stand 310 is added. A seating portion 250 for minimizing is formed from one end to the other end of the rotating body 200, and the front end of the seating portion 250 has a height located at the bottom of the plurality of height adjustable boom bars 210. As the adjustable boom stand 210 is installed to be rotated by the joint 220, the lower part of the height adjustable boom 210 and the horizontal boom 310 are seated on the seating part 250 in the folded state, so the floor height (volume) It has the advantage of being able to minimize

The reason for installing a plurality of height adjustable boom bars 210 at the front end of the seating part 250 is that it is seated on the seating part 250 in a state in which the height adjustable boom bracket 210 and the horizontal boom support 310 are folded. This is to accommodate the length of the folded height adjustable boom stand 210 and the horizontal boom stand 310 as much as possible.

And in the rotating body 200, a height adjustment cylinder 230 for operating the height adjustment boom stand 210, a rotation means 240, and a hydraulic pressure supply means 260 for operating the traffic light 320 and the horizontal boom stand 310 ), the electricity supply means 270, the driving unit 280 and the control unit 400 for controlling them are installed.

In addition, the signal means 300 of the present invention, as shown in Figs. 4 and 5, is installed in connection with the height adjustable boom 210 located at the uppermost portion, and the signal light 320 for informing whether the vehicle proceeds in the corresponding lane has a plurality of stages. is installed on each of the horizontal boom stands 310, and the horizontal boom stand 310 of the plurality of stages is installed to be adjustable in length, and each of the traffic lights 320 does not collide with each other when the length of each horizontal boom stand 310 is adjusted. overlap

As described above, when the length of each horizontal boom 310 is adjusted, the reason that the traffic lights 320 installed on each horizontal boom 310 overlap each other without colliding with each other is, in order to be reduced to

One embodiment of the multiple-stage horizontal boom stand 310 as described above is composed of three stages, and the rear end and the second horizontal boom stage ( 312) Between the distal end, the third horizontal boom stand 313 and the second horizontal boom stand 312 are interconnected and fixed, and the third horizontal boom stand ( 313) is folded to the opposite side where the traffic light 320 is installed, so that when the length of the horizontal boom stand 310 is reduced, the reduced length can be minimized.

And the second horizontal boom unit 312 is a second horizontal boom unit 312 using a cylinder or a motor for operating the second horizontal boom unit 312 installed in the first horizontal boom unit 311, the first horizontal boom unit 311 ) was allowed to enter and exit from the inside.

In addition, as shown in FIGS. 7a and 7b, between the rear end of the third horizontal boom stand 313 located in the front of the three-stage horizontal boom stand 310 and the front end of the second horizontal boom stand 312, the third horizontal boom stand 313 ) and the second horizontal boom stand 312 are interconnected and fixed, and the reduced length is minimized when the horizontal boom stand 310 is reduced in length by installing a folding means 330 that folds to the opposite side where the traffic light 320 is installed. made it possible

In one embodiment configuration of the folding means 330 as described above, each bracket 331 is fixedly installed at the rear end of the third horizontal boom stand 313 and the front end of the second horizontal boom stand 312, and each bracket A shaft 332 is installed at the central portion where 331 meets, a forward/reverse motor 333 is installed at one end of the shaft 332, and the rear end of the third horizontal boom stand 313 and the second horizontal boom stand 312 ) is made by installing a locking member 334 on the other side of the tip.

The reason for installing the bracket 331 in the configuration of the folding means 330 is so that the rear end of the third horizontal boom stand 313 and the front end of the second horizontal boom stand 312 are interconnected through the shaft 332 to be installed. In order to do this, the forward/reverse motor 333 rotates the third horizontal boom stand 313 to the opposite side where the traffic light 320 of the second horizontal boom stand 312 is installed to fold it or to operate it to return to its original position after folding, The locking member 334 is to maintain a firm coupling and fixing force when the rear end of the third horizontal boom stand 313 and the front end of the second horizontal boom stand 312 are kept in a straight line.

The above description of the folding means 330 is an embodiment according to the present invention, and in addition, any configuration is possible as long as the third horizontal boom stand 313 is folded from the second horizontal boom stand 312, and the locking member 334 ) is also possible as long as the third horizontal boom stand 313 and the second horizontal boom stand 312 are coupled to maintain a straight line and then can maintain the coupling force.

In addition, the traffic light 320 installed in the first horizontal boom 311 of the three-stage horizontal boom 310 and the traffic light 320 installed in the second horizontal boom 312 are shown in FIGS. 8a and 8b. When the length of the first and second horizontal booms (311.312) is adjusted, that is, when the length is reduced to a minimum, in order to install so that they do not collide with each other and overlap each other, a traffic light on the upper or lower portion of any one of the first and second horizontal booms (311.312) A traffic light support bracket (B) of a length that can accommodate 320 is installed, and a corresponding signal light 320 is installed in the traffic light support bracket (B) so that the other side of the signal light 320 is the traffic light support bracket (B) When the length of the horizontal boom stand 310 is reduced by placing it in the position, the reduced length can be minimized.

In addition, in the rear of the first horizontal boom 311 of the three-stage horizontal boom 310, a wire operating cylinder 340 is installed as shown in FIGS. 9A and 9B, and the rod of the wire operating cylinder 340 has A wire support means 350 for supporting the first and second horizontal boom stands 311 and 312 is installed to be rotated according to the operation direction of the wire operation cylinder 340, and the wire support means 350 has FIGS. 4 and 5. As shown in, the wire 360 supporting either or both of the first and second horizontal booms 311 and 312 is installed to prevent the heavy horizontal boom 310 from being shaken by wind, etc., as well as the horizontal booms (310) was firmly supported and supported.

However, the other end of the wire 360 may be fixedly installed on the rotating body 200 or installed at the rod end of the wire operating cylinder 340 for use.

The reason why the wire support means 350 is rotated according to the operating direction of the wire operation cylinder 340 is that when the horizontal boom 310 is used, the wire support means 350 is exposed to the top so that the wire 360 is This is to firmly support the horizontal boom 310, and when the horizontal boom 310 is not used, the wire support means 350 exposed to the upper portion is the inlet hole 370 as shown in FIGS. 4 and 5. in order to be accepted in

The inlet hole 370 as described above is formed so that the wire operation cylinder 340 and the wire support means 350 are drawn in and out of the rear of the first horizontal boom stand 311 .

The configuration of an embodiment in which the wire support means 350 rotates according to the operating direction of the wire operation cylinder 340 is a first horizontal boom stand ( 311) is installed side by side in the vertical direction of two pinions 351 that are teeth-engaged with each other on one rear side of 311), and a support bar 352 is installed on the pinion 351 installed on the upper part, and the wire operation cylinder 340 The rod has a pinion 351 located at the lower portion and a rack 353 that is engaged with the teeth, so that the two pinions 351 rotate in the forward and reverse directions according to the operation direction of the wire operation cylinder 340 while a support bar ( 352 is vertically exposed to the outside of the inlet hole 370 or accommodated in the inlet hole 370 .

The configuration of the wire support means 350 is only one embodiment according to the present invention, and in addition, any configuration capable of rotating the wire support means 350 according to the operation direction of the wire operation cylinder 340 is possible. .

And it is preferable to install a pulley (F) at the end of the rod of the support bar (352) and the wire operation cylinder (340) for smooth guide of the wire (360).

In addition, the horizontal boom 310 of the present invention is selected, as shown in FIGS. 4 and 5, a camera 380 for photographing a construction site or traffic condition of a road is installed, and the camera 380 is the control unit 400 ) and installed to transmit the construction site or traffic condition of the road to the situation room of a road management agency or the situation room of a construction company, and install the communication module 410 to check the construction site or traffic situation of the road in the recovery room In the event of an incident, the action situation was communicated to the work site.

In addition, in the selected place of the horizontal boom stand 310, a display unit 420 that notifies the driver of road construction or traffic conditions with text, symbols, pictures, etc. can be installed to inform the driver of the situation of the road construction site. In the selected place of the horizontal boom stand 310, a warning light 390 informing the driver of road construction or traffic conditions was installed so that the driver can drive with caution.

As described above, the road traffic display device of the present invention, as described in the above effect, reduces the weight by simplifying the structure of the horizontal boom stand located on the road and at the same time maximizes the length extension to determine whether or not construction is being performed on each of a plurality of lanes. It is possible to give a signal whether the vehicle is drivable or not, and it can be operated by mounting the main body of the road traffic display device in the loading box of the truck, or placing it on the ground from the loading box of the truck and rotating it in a desired direction to operate it, and it can be operated by adjusting the height of multiple stages By folding the boom and horizontal booms to ensure that they are secured and protected on the rotating body in a state where the floor height (volume) is minimized, the transportation of road traffic display devices can be facilitated, and the construction site or traffic condition of the road under construction can be monitored from the management agency. It has the advantage of being able to confirm and instruct.

100: body 110: first body cylinder
120: second body cylinder 130: fixing means
140: support plate 200: rotating body
210: height adjustable boom stand 220: joint
230: height adjustment cylinder 240: rotation means
241: rotation shaft 242: forward and reverse motor
250: seating part 260: hydraulic supply means
270: electricity supply means 280: driving unit
300: signal means 310: horizontal boom stand
311: first horizontal boom unit 312: second horizontal boom unit
313: third horizontal boom 320: traffic light
330: folding means 331: bracket
332: shaft 333: forward and reverse motor
334: locking member 340: wire operating cylinder
350: wire support means 360: wire
370: inlet hole 380: camera
390: warning light 400: control unit
410: communication module 420: display unit

Claims (16)

A first body cylinder 110 for drawing in and withdrawing rods in both directions is installed at the front and rear sides, and a second body cylinder 120 for drawing in and withdrawing rods in the vertical direction is installed in the first body cylinder. The body 100 is mounted on the loading box or configured to be put down to the ground from the loading box;
It is installed to be rotated by the rotating means 240 on the upper part of the main body, and a plurality of height adjustment boom stands 210 are installed in the front, and the upper and lower ends of each height adjustment boom stand are angled by the joint 220 so as to be rotated. The rotating body 200 is installed, and the height adjustment cylinder 230 is connected and installed between the height adjustment booms of each stage;
A traffic light 320 installed in connection with the height adjustable boom located at the top to inform whether the vehicle in the corresponding lane is proceeding is installed in each of the plurality of stages of the horizontal boom 310, and the horizontal boom of the plurality of stages is installed so as to be adjustable in length. and the signal means 300 are installed to overlap each other without colliding with each other when the length of each horizontal boom is adjusted;
a control unit 400 for controlling the main body, the rotating body, and the signal means; Road traffic display device, characterized in that it comprises a.
According to claim 1,
The second body cylinder 120 is installed to be detachably coupled to the ends of the rods on both sides of the first body cylinder via the fixing means 130, and the lower end of the rod of the second body cylinder is a support plate supported on the bottom surface. (140) Road traffic display device, characterized in that installed.
According to claim 1,
The rotating means 240 is composed of a rotating shaft 241 that is fixedly installed by connecting the main body and the rotating body, and a forward/reverse motor 242 that rotates the rotating body by transmitting rotational power to the rotating shaft to rotate the rotating shaft. A road traffic indicator.
According to claim 1,
In the rotating body 200, a seating portion 250 for minimizing the height (volume) of the folded height adjusting bar and the horizontal boom stand is folded and seated in the plurality of stages of the height adjustable boom stand and the horizontal boom stand is provided on one side of the rotating body. A road traffic display device, characterized in that formed from one end to the other end, and at the front end of the seating unit, a height adjusting boom located at the bottom of the plurality of stages of the height adjusting boom is installed to be rotated by the joint.
5. The method of claim 4,
In the rotating body 200, a hydraulic supply means 260 for operating a height adjustment cylinder and rotation means and a traffic light and a horizontal boom for operating the height adjustment boom, electricity supply means 270, and a driving unit 280 are installed Road traffic indicator, characterized in that.
According to claim 1,
The plurality of stages of the horizontal boom stand 310 is composed of three stages, and between the rear end of the third horizontal boom unit 313 located at the forefront among the three stages of the horizontal boom unit and the front end of the second horizontal boom unit 312, the third horizontal boom unit A road traffic display device, characterized in that a folding means (330) for connecting and fixing the second horizontal boom and folding the third horizontal boom to the opposite side where the traffic light is installed is installed.
7. The method of claim 6,
In the folding means 330, each bracket 331 is fixed to the rear end of the third horizontal boom and the front end of the second horizontal boom, and a shaft 332 is installed at the center where each bracket meets, and the A road traffic display device, characterized in that a forward/reverse motor (333) is installed at one end of the shaft, and a locking member (334) is installed on the other side of the rear end of the third horizontal boom and the leading end of the second horizontal boom.
According to claim 1,
The plurality of stages of the horizontal boom stand 310 is composed of three stages, and among the three stages of the horizontal boom stage, the traffic lights installed on the first horizontal boom stage 311 and the traffic lights installed on the second horizontal boom stage 312 are the first and first Road traffic display device, characterized in that the two horizontal booms are installed so that they do not collide with each other when the length is adjusted.
9. The method of claim 8,
A traffic light support bracket (B) having a length that can accommodate a traffic light is installed on the upper or lower portion of any one of the first or second horizontal boom stand, and the corresponding signal light is installed on the traffic light support bracket so that the traffic light of the other side is the above A road traffic display device, characterized in that it is configured to be positioned above or below the traffic light support bracket.
According to claim 1,
The horizontal boom stand 310 of the plurality of stages is composed of three stages, and a wire operation cylinder 340 is installed behind the first horizontal boom stage among the three stages of the horizontal boom stage, and the first and first rods of the wire operation cylinder are installed. 2 A wire support means 350 for supporting the horizontal boom is installed to rotate according to the operating direction of the wire operation cylinder, and the wire support means includes a wire ( 360) road traffic display device, characterized in that it is installed.
11. The method of claim 10,
A road traffic display device, characterized in that, at the rear of the first horizontal boom, an inlet hole (370) through which the wire operating cylinder and the wire support means are drawn in and out is formed.
11. The method of claim 10,
The wire support means 350 is installed side by side in the vertical direction of the two pinions 351 that are tooth-engaged with each other on one rear side of the first horizontal boom, and the support bar 352 is installed on the pinion installed on the upper part, The rod of the wire operated cylinder is formed with a pinion and a tooth-engaged rack located at the lower portion, and the two pinions rotate in a mutually forward and reverse direction according to the operating direction of the wire operating cylinder, thereby moving the support bar to the outside of the inlet hole 370. A road traffic display device, characterized in that it is vertically exposed or configured to be accommodated in an inlet hole.
According to claim 1,
A camera 380 for photographing a construction site or traffic situation of a road is installed in a selected place of the horizontal boom 310, and the camera is installed in connection with the control unit to monitor the construction site or traffic situation of the road by a road management agency Road traffic display device, characterized in that the communication module 410 for transmitting to the situation room of the situation room or the construction company's situation room is installed.
According to claim 1,
A road traffic display device, characterized in that a display unit (420) is installed in the selected place of the horizontal boom stand (310) to inform the driver of road construction or traffic conditions with characters, symbols, pictures, and the like.
According to claim 1,
A road traffic display device, characterized in that a warning light (390) for informing the driver of road construction or traffic conditions, etc. is installed in the selected place of the horizontal boom stand (310).
According to claim 1,
A case 150 for accommodating and protecting the first body cylinder is installed in the front and rear of the body 100, and the case is configured to be used as a stairway from the ground or the floor of the cargo car loading box to the body and the rotating body. road traffic indicator.

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