Easy-to-install and maintain duct-type smart LED road sign studs.

Abstract

This invention relates to a duct-type smart LED road sign stud that can be installed on roads to clearly guide the gaze of drivers and pedestrians, thereby ensuring safety, and is easy to maintain. [Solution] The duct-type smart LED road sign stud 1, which is easy to install and maintain, consists of a cover member 10 that is a rod-shaped structure with a long length in one direction, and has one or more insertion holes formed on its upper surface that penetrate vertically, with a mounting space 15 formed inside that is long in the longitudinal direction and communicates with the insertion holes; a frame 20 that is coupled to the lower part of the cover member 10; one or more light-emitting units 30 that are arranged in the mounting space 15 and whose upper parts are inserted into the insertion holes; and a cable 40 that is inserted along the longitudinal direction of the mounting space 15 and electrically connects a number of light-emitting units 30, with the upper parts of the light-emitting units 30 being exposed to the outside through the insertion holes.

Description

[Technical Field]

[0001] The present invention relates to a smart LED road stud, and in particular to a duct-type smart LED road stud that is installed on a road, can clearly guide the sight of vehicle drivers and / or pedestrians to achieve safety, and is easy to install and maintain. [Background Art]

[0002] Road studs, as road accessories specified in Article 3 of the South Korean Road Act and Article 30 of the Regulations on Structural / Facility Standards for Roads, refer to sight-guiding facilities that complement the alignment of painted road surface markings which suffer from severe visibility degradation at night or in rainy days, and clearly guide drivers' sight to achieve traffic safety and smooth traffic.

[0003] Such road studs complement the function of road surface markings such as road center lines, lane boundaries, exclusive lanes, road obstacles and safety zones, and are installed in sections where it is necessary to improve drivers' awareness of alignment guidance and changes in road environment.

[0004] Typical installation sections include road edge lines, curved roads, tunnels, lane reduction / separation / merge sections, traffic lane change sections, traffic islands, interchanges, two-lane roads including left-turn lanes, multi-lane roads and narrow bridges.

[0005] In addition, according to their driving modes, road studs are divided into reflective type, which reflects light entering from outside like the headlights of automobiles, and light-emitting type, which has its own light-emitting function; the light-emitting type is further subdivided into constant-on type, switching type and the like.

[0006] Reflective road studs do not have a self-luminous function, and compensate for the corresponding function by reflecting the headlights of automobiles.

[0007] Therefore, while relatively inexpensive and easy to install, reflective road markers have the drawback of having to protrude to a certain extent from the road surface in order to achieve a reflective surface at a predetermined angle. This reduces road stability and drivability, and the wear and tear on the reflective surface shortens their lifespan, leading to an increasing trend in the use of luminous road markers.

[0008] Conventional road markers are generally made up of circular or square shapes.

[0009] Therefore, in order to install road marker studs on the road, circular or square-shaped installation grooves had to be formed in the road at intervals from one another, and the road marker studs had to be installed one by one in these grooves, which required a lot of construction time.

[0010] Furthermore, conventional road sign studs have limitations in improving visibility for drivers and pedestrians, and their durability against external forces from vehicles is also unsatisfactory. [Prior art documents] [Patent Documents]

[0011] [Patent Document 1] Korean Registered Patent Publication No. 10-2520607 [Patent Document 2] Korean Registered Patent Publication No. 10-2200549 [Overview of the project] [Problems that the invention aims to solve]

[0012] The present invention aims to solve the aforementioned problems and provides a duct-type smart LED road sign stud that is easy to install and maintain, allowing for rapid installation of road sign studs on roads, easy maintenance, and improved visibility and durability. [Means for solving the problem]

[0013] To achieve the above objective, the present invention provides an easy-to-install and maintain duct-type smart LED road sign stud, comprising: a cover member having a long rod shape in one direction, with one or more insertion holes formed on its upper surface that penetrate vertically, and a mounting space formed inside that is elongated in the longitudinal direction and communicates with the insertion holes; a frame coupled to the lower part of the cover member; one or more light-emitting units arranged in the mounting space, with their upper parts inserted into the insertion holes; and a cable electrically connecting a number of light-emitting units while being inserted and arranged along the longitudinal direction of the mounting space; wherein the upper parts of the light-emitting units are exposed to the outside through the insertion holes.

[0014] The cover member has openings on both sides in the longitudinal direction that allow the mounting space to communicate with the outside, adjacent cover members are arranged adjacent to each other so that the openings communicate with each other, and a cable placed in one mounting space is connected to a cable placed in an adjacent mounting space through the openings.

[0015] The cover member comprises a cover upper surface portion in which the insertion hole is formed, and cover side wall portions extending downward from both sides of the cover upper surface portion and spaced apart from each other, forming the mounting space between them; the frame comprises a frame bottom portion that closes the lower part of the mounting space, and a frame side wall portion that is bent upward from the frame bottom portion and is in contact with the cover side wall portion.

[0016] The cover member is formed so that its sides are sloped downwards, with its width narrowing from top to bottom, but the maximum width of the frame is formed to be smaller than the maximum width of the cover member.

[0017] The system further includes a buffer pad positioned between the lower part of the light-emitting unit and the upper surface of the frame, the buffer pad cushioning any downward force applied to the light-emitting unit.

[0018] Said light-emitting unit comprises: a lens portion made of a transparent material inserted and disposed in said insertion hole; a housing coupled to a lower portion of said lens portion, with a flange portion formed to protrude in a horizontal direction; and a circuit board disposed between said housing and the lens portion, with an LED mounted on an upper surface thereof, wherein when said light-emitting unit is inserted into said mounting space in the direction of said insertion hole, said flange portion is caught in contact with a bottom surface of said cover member, and said flange portion is fastened to said cover member by a fastening member, so that said light-emitting unit is fixed to said cover member.

[0019] Said cover member is made of an elastic rubber material.

[0020] Said cover member is formed with a buffer hole which is an empty space.

Effects of the Invention

[0021] According to the duct-type smart LED road marker stud of the present invention which is easy to install and maintain as described above, the following effects can be obtained.

[0022] The present invention is a duct-type road marker stud in which the road marker stud is rod-shaped and can accommodate a cable therein, so that the road marker stud can be quickly installed on a road, is easy to replace, and is easy to install and maintain.

[0023] Furthermore, the visibility of the road marker stud can be further improved by the shape of the lens portion of the light-emitting unit and the LED arrangement structure.

[0024] In particular, by irradiating light with higher luminous intensity in a first direction which is the traveling direction of vehicles than in a second direction which is the traveling direction of pedestrians, traffic safety can be greatly improved by irradiating brighter light to vehicles while irradiating light in both directions of vehicles and pedestrians.

[0025] Furthermore, the cover member is made of a rubber material, and a buffer pad is disposed at a lower portion of the light-emitting unit, so that durability can be improved.

Brief Description of Drawings

[0026] Figure 1 is a perspective view of a smart LED road marking stud according to an embodiment of the present invention.

[0027] Figure 2 is an exploded perspective view of a smart LED road marking stud according to an embodiment of the present invention.

[0028] Figure 3 is a cross-sectional view taken along line A-A in Figure 1.

[0029] Figure 4 is a cross-sectional view taken along line B-B in Figure 1.

[0030] Figure 5 is a perspective view showing a connected state of smart LED road marking studs according to an embodiment of the present invention.

[0031] Figure 6 is a side end view showing a state where a smart LED road marking stud according to an embodiment of the present invention is inserted into an installation groove on a road.

[0032] Figure 7 is a perspective view of a lens portion of a smart LED road marking stud according to an embodiment of the present invention.

[0033] Figure 8 is a drawing for explaining optical characteristics of a smart LED road marking stud according to an embodiment of the present invention. DETAILED DESCRIPTION OF EMBODIMENTS

[0034] As shown in Figures 1 to 6, the smart LED road marking stud (1) of the present invention comprises a cover member (10), a frame (20), a light-emitting unit (30), a cable (40) and the like.

[0035] The smart LED road marking stud (1) of the present invention is in the shape of a bar that is long in one direction and short in the width direction.

[0036] The cover member (10) is formed into a bar shape that is long in one direction.

[0037] One or more insertion holes (11-1) penetrating vertically are formed on the upper surface of the cover member (10).

[0038] Inside the cover member (10), a mounting space (15) is formed that communicates with the insertion hole (11-1) and extends along the length of the cover member (10).

[0039] Specifically, the cover member (10) consists of a cover upper surface portion (11) and a cover side wall portion (12).

[0040] The upper surface portion (11) of the cover is the part that is exposed to the outside through the road ground, and the insertion hole (11-1) is formed to penetrate the upper surface portion (11) of the cover in the vertical direction.

[0041] The cover sidewall portion (12) extends downward from both sides of the cover upper surface portion (11) and is separated from each other, forming the mounting space (15) between them.

[0042] The cover member (10) is made of an elastic rubber material (such as natural rubber or synthetic rubber).

[0043] Therefore, when the road marking stud (1) of the present invention is installed on a road, when pressure is applied to the cover member (10) by the tires of a vehicle, etc., it can be elastically deformed and cushion the external force, thereby improving durability against friction and impact with the tires.

[0044] Furthermore, the cover member (10) has numerous buffer holes (13) which are empty spaces, which can further increase the buffering effect against external forces.

[0045] The buffer holes (13) can be formed in various positions on the cover member (10).

[0046] If the cover member (10) is made of natural rubber, corrosion and environmental pollution due to coating can be prevented.

[0047] The cover member (10) has openings (16) formed on both sides in the longitudinal direction, which allow the mounting space (15) to communicate with the outside.

[0048] As shown in Figure 5, when multiple cover members (10) are installed in a long, longitudinal arrangement, adjacent cover members (10) are arranged so that their openings (16) communicate with each other.

[0049] Through this, the mounting spaces (15) formed inside the adjacent cover members (10) are connected to each other through the opening (16).

[0050] The frame (20) is made of a metal plate or the like and is attached to the lower part of the cover member (10).

[0051] The frame (20) consists of a frame bottom (21) and a frame side wall (22).

[0052] The frame bottom (21) closes the lower part of the mounting space (15).

[0053] The frame sidewall portion (22) is formed by bending upward from both sides of the frame bottom portion (21) and is in contact with the cover sidewall portion (12).

[0054] At this time, the frame side wall portion (22) is installed so as to be in contact with the outer wall of the cover side wall portion (12).

[0055] By connecting the frame (20) to the lower part of the cover member (10), the road sign stud (1) of the present invention is formed in a duct shape having the mounting space (15) inside.

[0056] It is desirable that a large number of cover members (10) be arranged in a row and mounted on a single frame (20), and the cover members (10) are fixedly connected to the frame (20) through fastening bolts or the like that are inserted from the top to the bottom.

[0057] Furthermore, the cover member (10) is formed with its sides inclined downwards so that its width narrows from top to bottom.

[0058] The maximum width of the frame (20) is formed to be smaller than the maximum width of the cover member (10).

[0059] In order to install the road marking pin (1) of the present invention on a road, an installation groove (2) must be formed along the road crosswalk or the like, as shown in Figure 6, and the road marking pin (1) as shown in Figure 5 must be inserted and installed in this groove.

[0060] The aforementioned road sign studs (1) are installed in a long, connected manner along the direction of pedestrian travel at a crosswalk, while the direction of vehicle travel is positioned across the road sign studs (1).

[0061] In this case, if the width of the installation groove (2) is large, the road sign stud (1) can be easily attached to the installation groove (2). However, after the installation of the road sign stud (1), the gap between the installation groove (2) and the road sign stud (1) will be exposed to the outside, and this gap must be repaired by filling it separately with asphalt concrete and / or cement.

[0062] As described above, the repaired sections will subside over time, leading to road damage.

[0063] In this invention, the width of the installation groove (2) is formed to be slightly smaller than the maximum width of the cover member (10) that constitutes the road sign stud (1).

[0064] When the road sign pin (1) is inserted into the aforementioned installation groove (2) and forcibly pushed in, the cover member (10) is formed so that its sides are inclined downward, and since it is made of an elastic rubber material, as shown in Figure 6(b), the cover member (10) is partially compressed and tightly inserted into the installation groove (2).

[0065] This minimizes the gap between the installation groove (2) and the road sign stud (1), eliminating the need for the separate repair work that was previously performed, and thus preventing road subsidence problems.

[0066] The light-emitting unit (30) consists of one or more units and is arranged in the mounting space (15), with its upper part inserted into the insertion hole (11-1).

[0067] The upper part of the light-emitting unit (30) is exposed to the outside through the insertion hole (11-1).

[0068] At this time, it is desirable that a portion of the upper part of the light-emitting unit (30) protrudes upward and is exposed through the insertion hole (11-1).

[0069] The specific configuration and structure of the aforementioned light-emitting unit (30) will be described later.

[0070] Furthermore, a buffer pad (50) is placed between the lower part of the light-emitting unit (30) and the upper surface of the frame (20).

[0071] Such a cushioning pad (50) cushions the force that pushes the light-emitting unit (30) downward, thereby preventing damage to the light-emitting unit (30).

[0072] The cable (40) is inserted and positioned along the length of the mounting space (15) in the mounting space (15) and electrically connects a number of light-emitting units (30) to one another.

[0073] With multiple cover members (10) interconnected in the longitudinal direction, a cable (40) placed in any one mounting space (15) is connected to a cable (40) placed in an adjacent mounting space (15) through the opening (16).

[0074] This allows adjacent rod-shaped road marker pins (1) to be easily connected to the cable (40).

[0075] As shown in Figure 5, in some cases, a dummy cover may be placed between the road sign rivets (1) of the present invention, in which the cover member (10) is connected to the frame (20) without the light-emitting unit (30).

[0076] At this time, the cable (40) can be continuously connected through the mounting space (15) formed in the cover member (10).

[0077] When replacing any of the road sign rivets (1) connected in a group, the fastening bolts that secure the cover member (10) to the frame (20) at the road sign rivet (1) are separated, and the cover member (10) is pulled upward.

[0078] As a result, the cover member (10) rises upward, and the cable (40) placed in the mounting space (15) also rises along with it. At this time, the cable (40) has extra length space in the mounting space (15) so that it can rise along with the cover member (10) when it rises.

[0079] After that, the connection of the cable (40) is separated, the cable (40) of the new road sign stud (1) is connected to the cable (40) of the adjacent road sign stud (1), and then the road sign stud (1) is reinserted into the frame (20) and fastened.

[0080] As described above, the road sign stud (1) of the present invention is formed in a rod shape with a long length in one direction and has a duct structure with an installation space (15) formed inside. This makes it possible to form a straight installation groove (2) in the road in order to install a large number of road sign studs (1), which is easier than the conventional work of forming a large number of circular or polygonal installation grooves spaced apart and the work of installing the road sign studs.

[0081] Furthermore, multiple light-emitting units (30) can be easily connected to each other through cables (40) arranged in the mounting space (15).

[0082] On the other hand, in the present invention, the light-emitting unit (30) generates light and specifically includes a lens portion (31), a housing (32), a circuit board (33), and the like, as shown in Figures 1, 2, 3, 4, and 7.

[0083] The lens portion (31) is made of a transparent material and is inserted into the insertion hole (11-1).

[0084] The lens portion (31) emits light in both directions in the first direction, which is the direction of travel of the vehicle, and emits light in both directions in the second direction, which is the direction of travel of the pedestrian perpendicular to the direction of travel of the vehicle, thus emitting light in a total of four directions.

[0085] In other words, the lens portion (31) irradiates light in two first directions (for example, ±X axes) and two second directions (for example, ±Y axes).

[0086] The housing (32) is coupled to the lower part of the lens portion (31), and a flange portion (32-1) is formed to protrude horizontally from the housing (32).

[0087] When the light-emitting unit (30) is inserted into the mounting space (15) in the direction of the insertion hole (11-1), the flange portion (32-1) comes into contact with and catches on the bottom surface of the cover member (10).

[0088] In this structure, the light-emitting unit (30) is fixed to the cover member (10) by fastening the flange portion (32-1) to the cover member (10) from below to above using fastening members such as screws.

[0089] As described above, in the present invention, by assembling the light-emitting unit (30) from the inside upward rather than from the top of the cover member (10), the light-emitting units (30) can be easily fixed to the cover member (10) while multiple light-emitting units (30) are connected by cables (40), making assembly and workability easy.

[0090] The circuit board (33) is positioned between the housing (32) and the lens portion (31), and a number of LEDs (34) are arranged in a straight line, spaced apart from one another, in the second direction.

[0091] The light generated from the LED (34) passes through the lens portion (31) and is irradiated in the first direction, which is the direction of travel of the vehicle, with an even higher luminous intensity than in the second direction, which is the direction of travel of the pedestrian.

[0092] In other words, the light generated from the LED (34) passes through the lens portion (31) and illuminates the direction of travel of the vehicle with a brighter light that is even brighter than the direction of travel of the pedestrian.

[0093] The lens portion (31) is formed to be elongated in the second direction in which the LEDs (34) are arranged in a straight line.

[0094] A first transmissive portion (31-1) arranged in the first direction and a second transmissive portion (31-2) arranged in the second direction are formed protruding from the upper surface of the lens portion (31).

[0095] The length of the first permeable portion (31-1) is formed to be even longer than the length of the second permeable portion (31-2).

[0096] Therefore, when the same light is shone on the first transmissive portion (31-1) and the second transmissive portion (31-2), the first transmissive portion (31-1), which is positioned in the direction of travel of the vehicle, will emit even more light.

[0097] On the lower surface of the lens portion (31), a number of dome portions (31-3) are formed to protrude downward at positions corresponding to the LED (34), and are arranged to be spaced apart from each other in the second direction.

[0098] As shown in Figure 7, a reflective groove (31-4) is formed on the upper surface of the lens portion (31) in a concave shape toward the upper part of the dome portion (31-3) and is elongated in the second direction.

[0099] The reflective groove (31-4) has a first inclined surface (31-4a) that is inclined downward on the surface facing the first direction.

[0100] As shown in Figure 8, the light generated from the LED (34) is refracted in the direction of the reflective groove (31-4) while passing through the dome portion (31-3), reflected by the first inclined surface (31-4a), and then irradiated in the direction of the first transmissive portion (31-1).

[0101] Furthermore, the reflective groove (31-4) has a second inclined surface (31-4b) that is inclined downward on the surface facing the second direction.

[0102] The light generated from the LED (34) is refracted in the direction of the reflective groove (31-4) while passing through the dome portion (31-3), reflected by the second inclined surface (31-4b), and then irradiated in the direction of the second transmissive portion (31-2).

[0103] Since the numerous LEDs (34) are spaced apart from each other in a straight line in the second direction, the light generated by the LEDs (34) illuminates the first inclined surface (31-4a) more than the second inclined surface (31-4b).

[0104] Therefore, more light is irradiated in the first direction where the first transmissive part (31-1) is located than in the second direction where the second transmissive part (31-2) is located, and the first direction, which is the direction of travel for vehicles, shines brighter than the second direction, which is the direction of travel for pedestrians. This ensures the safety of pedestrians while also effectively ensuring the safety of vehicles with stronger light.

[0105] Furthermore, a reflective enhancement member (35) having the same shape as the reflective groove (31-4) and which does not transmit light (for example, a black panel) is inserted and mounted into the reflective groove (31-4).

[0106] Light irradiated onto the reflective groove (31-4) is totally reflected by the reflection-enhancing member (35) to the first transmissive portion (31-1) and the second transmissive portion (31-2), thereby further increasing the intensity of the light emitted through the first transmissive portion (31-1) and the second transmissive portion (31-2).

[0107] Furthermore, a reflective cover portion (35-1) is formed by extending horizontally from the upper part of the reflective enhancement member (35).

[0108] The light generated from the LED (34) and transmitted through the lens portion (31) is prevented from being diverted to the upper part of the lens portion (31) by the reflective cover portion (35-1), and the light is diverted only to the first transmissive portion (31-1) and the second transmissive portion (31-2), thereby further preventing the meaningless loss of light generated from the LED (34).

[0109] Furthermore, as shown in Figures 3 and 4, a mounting groove (31-5) into which the circuit board (33) is inserted is formed at the lower part of the lens portion (31), and a closed-loop shaped protective frame (31-6) is formed to protrude downward around the mounting groove (31-5).

[0110] An O-ring (32-2) is placed at the contact point where the lower surface of the lens portion (31) and the upper surface of the housing (32) come into contact.

[0111] When the lens portion (31) and the housing (32) are joined, the protective frame (31-6) is inserted into the inside of the housing (32) and is positioned to protrude further downward than the O-ring (32-2).

[0112] The circuit board (33), which is inserted into the fixing groove (31-5), is positioned above the O-ring (32-2), and the inside of the housing (32) and the fixing groove (31-5) are filled with molding (not shown) such as urethane.

[0113] With the above-described structure, the waterproof and dustproof effects of the light-emitting unit (30) can be further enhanced.

[0114] This invention utilizes a set of LEDs (34) arranged in a row to illuminate in a first direction and a second direction, i.e., all four directions (360 degrees). It operates with lower power consumption than existing systems that use a first-direction LED and a second-direction LED, thus saving energy.

[0115] Furthermore, the lens portion (31) concentrates the light generated from the LED (34) to minimize losses, making it possible to increase the luminous intensity by 2 to 3 times or more for the same current consumption, thereby realizing a high-brightness road sign stud.

[0116] The road marking stud (1) of the present invention, due to the shape and structure of the lens portion (31), can emit light in four directions to achieve 360-degree visibility, emitting stronger light in the first direction, which is the direction of vehicle travel, than in the second direction, which is the direction of pedestrian travel, thereby effectively ensuring safety, reducing light loss and concentrating the light, and increasing the luminous intensity by 2 to 3 times or more for the same current consumption.

[0117] The duct-type smart LED road sign stud of the present invention, which is easy to install and maintain, is not limited to the embodiments described above, but can be modified and implemented in various ways within the permissible range of the technical concept of the present invention. [Explanation of symbols]

[0118] 1: Road sign studs 10: Cover component 11: Top surface of the cover 11-1: Insertion hole 12: Cover side wall 13:Buffer hole 15: Fitting space 16: Open mouth 20: Frame 21: Bottom of the frame 22: Frame side wall 30: Light-emitting unit 31: Lens part 31-1: 1st transmission section 31-2:Second transparent part 31-3: Dome section 31-4:Reflection groove 31-4a: 1st slope 31-4b: 2nd slope 31-5: Safe ditch 31-6: Prevention frame 32: Housing 32-1: Flange section 32-2: O-ring 33: Circuit board 34: LED 35: Reflection-enhancing member 35-1: Reflective cover section 40: Cable 50: Cushioning pad 2: Installation groove

Claims

1. In road marking studs that are inserted into grooves formed in roads, A cover member comprising: a rod-shaped member with a long length in one direction, having one or more insertion holes formed on its upper surface that penetrate vertically, and a mounting space formed inside that communicates with the insertion holes and is elongated in the longitudinal direction; a frame coupled to the lower part of the cover member; one or more light-emitting units arranged in the mounting space, with their upper parts inserted into the insertion holes; and cables inserted and arranged along the longitudinal direction of the mounting space, electrically connecting a number of light-emitting units to each other; The cover member is The cover comprises: an upper surface portion of the cover in which the insertion hole is formed; and side wall portions of the cover extending downward from both sides of the upper surface portion of the cover, spaced apart from each other to form the mounting space between them. The aforementioned frame is It consists of a frame bottom portion that closes the lower part of the mounting space; and a frame side wall portion that is bent upward from the frame bottom portion and is in contact with the cover side wall portion. The cover member has openings on both sides in the longitudinal direction that allow the mounting space to communicate with the outside. The adjacent cover members are arranged such that the upper surface portion and the side wall portion of the cover are in contact with each other, and the openings are in communication with each other. A cable placed in one of the mounting spaces is connected to a cable placed in an adjacent mounting space through an open port. The maximum width of the cover member is greater than the width of the installation groove, and the minimum width is smaller than the width of the installation groove. The cover member is formed such that its sides are sloped downwards, with its width narrowing from top to bottom. The width of the frame is formed to be smaller than the maximum width of the cover member, and at the same time, smaller than the width of the installation groove. The cover member is made of an elastic rubber material, and when the cover member is inserted into the installation groove, the portion of the cover member that comes into contact with the installation groove is compressed and deformed, characterized in that it is a duct-type smart LED road sign stud that is easy to install and maintain.

2. The system further includes a cushioning pad positioned between the lower part of the light-emitting unit and the upper surface of the frame, The cushioning pad is characterized by cushioning the force that pushes the light-emitting unit downward, as described in claim 1, for a duct-type smart LED road sign stud that is easy to install and maintain.

3. The aforementioned light-emitting unit is A lens portion made of transparent material is inserted into the aforementioned insertion hole; A housing is coupled to the lower part of the lens portion, with a flange portion protruding horizontally; The system includes a circuit board disposed between the housing and the lens portion, with an LED mounted on its upper surface; The duct-type smart LED road sign pin according to claim 1, characterized in that when the light-emitting unit is inserted in the mounting space in the direction of the insertion hole, the flange portion contacts and catches on the bottom surface of the cover member, and the flange portion is fastened to the cover member by the fastening member, thereby fixing the light-emitting unit to the cover member.

4. The cover member is characterized by having buffer holes, which are empty spaces, formed therein, making it a duct-type smart LED road sign stud that is easy to install and maintain, as described in claim 1.

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