Luminous road traffic sign

Abstract

The present invention discloses an luminous road traffic sign, comprising a panel assembly, a light source panel assembly, a frame assembly, and one or more back panels. The frame assembly includes at least two transverse frame bars and two vertical frame bars. A limiting slot is axially defined on each transverse frame bar, and a supporting plate is disposed near the slot of the limiting slot. The supporting plate is used to support the back panel. The limiting slot is provided with a plurality of slidable pressing members for removably pressing and securing the back panel to the supporting plate of the transverse frame bars, facilitating rapid removal for maintenance. The present invention has the advantages of a simple and compact structure, convenient and quick installation, ease of rapid high-altitude maintenance, and high stability.

Description

Technical Field

[0001] The present invention mainly relates to the field of road traffic sign manufacturing, and in particular to a luminous road traffic sign. Background Art

[0002] With the development of road traffic, the beautification of roads, and the increasing demand for traffic safety, luminous road traffic signs (also known as luminous road traffic signs) are increasingly used. Luminous road traffic signs can serve as normal daytime signs or reflective signs at night. At the same time, when the backlight panel is illuminated at night, the front side can also transmit light, allowing the front side to actively illuminate and provide signs.

[0003] In the prior art, since luminous road traffic signs are very heavy (especially large-area luminous road traffic signs of more than ten or dozens of square meters), they need to be fixed on the roadside through complex fixing parts on the back. Figure 1 As shown, the back of the existing luminous road traffic sign is provided with multiple horizontal slide rails (as shown in the figure A), and the multiple horizontal slide rails (as shown in the figure A) are staggered and fixedly connected with multiple vertical external suspension rods (as shown in the figure B) through fixing parts (generally clamps), and then the multiple vertical external suspension rods (as shown in the figure B) are fixedly connected with two or more horizontal thick fixing rods (as shown in the figure C) on the main pole of the traffic sign through fixing parts (generally clamps). Through this method of fixing the slide rails, external suspension rods, and horizontal thick fixing rods layer by layer, the luminous road traffic sign is finally hung and fixed on the main pole of the traffic sign. This has the following technical problems:

[0004] First, in the structural mode of the prior art, the back plate is a whole piece of metal plate. Once maintenance is required inside the sign (such as changing the light board, line maintenance, etc.), the sign can only be removed to the ground for maintenance operations. Otherwise, the high-altitude operation is not only inconvenient but also very dangerous.

[0005] Second, the luminous road traffic signs of the prior art, when multiple horizontal slide rails are welded on the metal back plate (such as Figure 1 As shown in A), the high temperature generated by welding will have a high temperature impact on the light board inside, shortening the service life of the light board. In severe cases, it often causes multiple lamp beads on the light board to be damaged and fail during production, resulting in heavy rework, greatly affecting production efficiency, and causing extreme waste of production labor costs and material costs.

[0006] Third, the luminous road traffic signs in the existing technology have poor internal support effects, which makes the panel and back panel easily deformed, and are particularly unsuitable for large-area production (especially large-area luminous road traffic signs of more than ten square meters or dozens of square meters).

[0007] Fourth, in the existing technology, such as Figure 1 As shown, some technologies divide the sign's back panel into multiple pieces. Back panel mounting plates are installed on the sign's border rod (D in the figure) and support rod (E in the figure). The multiple back panels are then supported and fixed to the back panel mounting plates. The back panels are removably fixed to the back panel mounting plates using screws or rivets, adhesive bonding, or a combination of screws and adhesive bonding. This allows the corresponding back panel to be removed for maintenance during maintenance. However, through actual market testing and repeated experiments, it was found that this method still has significant technical problems:

[0008] 1. If gluing is used, in order to ensure the firmness of the structure, it is necessary to apply strong glue to the contact surfaces of the back panel and the back panel mounting plate, and directly glue the back panel firmly to the back panel mounting plate. This strong gluing method makes it difficult to easily and quickly remove and disassemble the strong glue between the two when it is necessary to remove a certain back panel at high altitude for quick maintenance. Many times, in order to forcibly pull the back panel apart, the back panel will be damaged or deformed, and the back panel will no longer be flat and complete, making it very difficult to reinstall the back panel after the maintenance work is completed, increasing the operation time and cost. In particular, due to the influence of the above-mentioned sliding rails, external hanging rods, and transverse thick fixing rods, the sliding rails, external hanging rods, and transverse thick fixing rods installed on the back panel in sequence will form an obstruction to the back panel. This intricate mesh structure makes the operating space very limited, so it is still very difficult to remove the glue at high altitude and then open the back panel for maintenance. For example Figure 1 At circle F, above the back panel, are the external suspension rods B and fasteners. If glued, this would be difficult to remove. While the diagram only shows three external suspension rods B and two thick horizontal fixing rods C, in practice, there are far more of them, and they are densely packed together.

[0009] 2. If screws or rivets are used, when removing the screws or rivets, an electric screwdriver and other tools are required. However, due to the influence of the above-mentioned sliding rails, external hanging rods, and transverse thick fixing rods, the sliding rails, external hanging rods, and transverse thick fixing rods installed on the back panel in sequence will form an obstruction to the back panel. This intricate network structure makes the operating space very limited. Therefore, it is still very difficult to remove multiple screws or rivets one by one at a high altitude and then open the back panel for maintenance. Because when making the sign, it is not known where the external hanging rods and transverse thick fixing rods will be during the later installation, so in practice, for example Figure 1At circle F in the figure, above the back panel are the external hanging rods B and fasteners. If screws or rivets are used, there may be screws or rivets on the back panel just below the external hanging rods B. This makes it very difficult to remove the screws or rivets at this location. The figure only shows three external hanging rods B and two transverse thick fixing rods C, but in actual work, there are more and denser numbers. Even if they need to be reinstalled after removal for maintenance, the installation operation is very difficult. More importantly, when screws are used, the screw holes on the back panel and the back panel mounting plate often slip during disassembly, which makes the screws not firmly installed when they need to be reinstalled after maintenance, seriously affecting the structural firmness of the sign and the installation performance in later use. However, if rivets are used, after the rivets are removed, the places on the back panel and the back panel mounting plate where the rivets were originally driven in cannot be reinserted and rivets can only be driven in other places. This will cause many original rivet holes to appear on the back panel and the back panel mounting plate, affecting the sealing and firmness. Secondly, due to the structure and layout of the sign itself, rivets cannot be reinserted in many places, which makes the back panel installation unstable, seriously affecting the structural firmness of the sign and the installation performance in later use.

[0010] 3. In this technology, two adjacent backboards are first overlapped and then glued together. This not only results in a lack of flatness and aesthetics in the backboard, but also presents the aforementioned issue of difficulty removing the strong glue for quick disassembly and maintenance. Third, this structure results in a lack of support and structural stability in the backboard, ultimately leading to a lack of overall structural stability in the sign, impacting service life and traffic safety. Fourth, the sliding rails, external suspension rods, and thick horizontal fixing rods installed sequentially on the backboard obstruct the backboard. This complex mesh structure significantly limits operating space. Summary of the Invention

[0011] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a luminous road traffic sign which has a simple and compact structure, is easy and quick to install, is easy to maintain quickly at high altitudes, and has high stability.

[0012] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0013] A luminous road traffic sign includes a panel assembly, a light source panel assembly, a frame assembly and one or more back panels, the frame assembly includes at least two transverse frame rods and two vertical frame rods, a limiting slide groove is axially opened on the transverse frame rod, a bearing plate is provided near the groove of the limiting slide groove, the bearing plate is used to support the back panel, and a plurality of slidable pressing parts are provided in the limiting slide groove, which are used to detachably press and fix the back panel to the bearing plate of the transverse frame rod so that it can be quickly removed for maintenance.

[0014] As a further improvement of the present invention, it includes at least two back panels arranged in sequence in a horizontal direction, and the two back panels adjacent to each other on the left and right sides are connected by a vertical limit rod. The limit rod includes a rod body, and the upper and lower ends of the rod body are each provided with a slider that can slide in the limit slide groove. The left and right sides of the rod body are each provided with a limit slot so that the left and right back panels are respectively inserted into the limit slots.

[0015] As a further improvement of the present invention, a waist-shaped hole is provided on the end of the rod body or the slider, so as to adjustably fix the slider to the rod body by means of a screw.

[0016] As a further improvement of the present invention, the rod body includes an upper plate portion and a lower plate portion arranged in parallel, and the middle parts of the upper plate portion and the lower plate portion are connected by a connecting portion to form two limiting slots between the upper plate portion and the lower plate portion. After installation, the upper plate portion is used to contact the slider, and the top surface of the lower plate portion and the top surface of the supporting plate are on the same horizontal plane to facilitate the flat sealing of the back plate.

[0017] As a further improvement of the present invention, it includes at least two back panels arranged in sequence in a vertical direction, and the frame assembly also includes one or more support rods arranged in parallel between the two horizontal frame rods. The two vertically adjacent back panels are connected by a horizontal support rod, and the support rods are also provided with matching limiting grooves and supporting plates on both sides along the axial direction. The two limiting grooves of the support rods are also provided with multiple sliding clamping parts, which are used to detachably press and fix the back panel to the supporting plate of the support rod for quick removal for maintenance.

[0018] As a further improvement of the present invention, an installation slide groove is also provided on at least one of the horizontal border rod and the support rod, which is used to fixedly connect the luminous road traffic sign with the external suspension rod through a fixing part, and the limiting slide groove is arranged on the side of the installation slide groove so that the bottom plate portion of the limiting slide groove and the side plate portion of the installation slide groove are shared.

[0019] As a further improvement of the present invention, the horizontal frame rod and the support rod are both provided with a light source mounting plate arranged parallel to the carrying plate for fixing the light source board assembly.

[0020] As a further improvement of the present invention, the transverse frame rod and the support rod are both provided with a first panel mounting plate arranged parallel to the bearing plate for supporting and fixing the panel assembly.

[0021] As a further improvement of the present invention, the backboard is provided with a first hook portion, which is used to detachably connect the backboard and the external safety rope through the first hook portion when the backboard is moved to prevent the backboard from falling from a high altitude.

[0022] As a further improvement of the present invention, a second hook portion is provided on the pressing member, and when the back plate is moved, both ends of the external safety rope are detachably connected to the first hook portion and the second hook portion respectively.

[0023] As a further improvement of the present invention, the horizontal frame rod is provided with a bottom plate extending outward, the outer end of the bottom plate is provided with an upward side plate for enclosing and forming a light strip mounting groove with an upper end opening, and the top of the side plate is provided with a second panel mounting plate for supporting and fixing the panel assembly.

[0024] As a further improvement of the present invention, the clamping member includes a sliding portion that slides in the limiting slide groove, the sliding portion is provided with a mounting portion extending from the groove of the limiting slide groove, and the mounting portion is provided with a pressing piece that can be rotated left and right, so as to press the pressing piece against the back plate or not contact the back plate by rotation.

[0025] Compared with the prior art, the advantages of the present invention are:

[0026] First, the luminous road traffic sign of the present invention is provided with a special transverse frame rod and a pressing part, which completely subverts the existing backboard fixing form. The corresponding backboard can be easily and quickly removed and reinstalled for the area that needs maintenance, which can achieve fast, targeted and accurate maintenance, short working time, high work efficiency, and greatly reduced maintenance costs.

[0027] Secondly, the luminous road traffic sign of the present invention will not cause damage or deformation to the backboard regardless of whether the backboard is removed or reinstalled, and there is no need to punch holes in the horizontal frame rods. Moreover, each pressing part can be restored to the original installation position for installation, effectively ensuring the integrity of each component, and thus effectively ensuring the overall sealing, stability and safety of the sign.

[0028] Third, the slidable clamping element design of the luminous road traffic sign of the present invention not only facilitates later maintenance and disassembly, but also greatly facilitates initial sign production. Because the size of the back and the required fixed position of the back are uncertain during sign production, the design of the different light source panel components within the sign is determined. The provision of a slidable clamping element allows for flexible installation by selecting different numbers of clamping elements and adjusting the positions of the clamping elements according to actual needs during final clamping and fixing, making production convenient, fast, and highly stable.

[0029] Fourth, the luminous road traffic sign of the present invention has a limit rod that is equivalent to a support rod. It can support the back panels on both sides to ensure that the relatively thin back panels will not be deformed. It can also form a connection and mutual support for the upper and lower horizontal frame rods, further increasing the structural stability and safety of the entire sign. It completely overturns the backward design of the prior art in which the back panels are overlapped together in sequence and then fixed with glue. The slot design increases the connection stability and sealing between the two adjacent back panels. All the back panels are in the same horizontal plane, and the sign is more beautiful. In order to further ensure easy disassembly, the limit rod and the horizontal frame rod are designed to slide together, which makes it easy to slide and adjust the position of the limit rod during disassembly, facilitating the disassembly and reset installation of multiple back panels. That is, the limit rod of the present invention well takes into account the requirements of structural stability, sealing, aesthetics, and ease of disassembly.

[0030] Fifth, the luminous road traffic signs of the present invention have a plurality of different models and sizes during the production process. Through the design of detachable connection, the length of the limit rod can be flexibly adjusted to adapt to different production requirements during actual production (just cut the rod body of different lengths to match the slider). The practicality of the limit rod is greatly increased, the production cost and the backlog of raw materials are saved, and the production is more convenient and quick. At the same time, in the actual process, production errors may occur. At this time, the length of the entire limit rod can be fine-tuned through the design of the waist-shaped hole to facilitate installation. When the sign is disassembled for maintenance in the later stage, if the sign is slightly deformed due to wind and sun in nature, it is not convenient for the overall sliding of the limit rod. At this time, the rod body can be removed or the screw can be loosened to adjust the length of the limit rod to facilitate the overall sliding of the limit rod, and then facilitate the subsequent disassembly of the back plate.

[0031] Sixth, the luminous road traffic sign of the present invention, through the provision of a special support rod, has the following technical advantages: First, the support rod can support and install the two vertical upper and lower back panels, allowing the entire back panel of the sign to be further divided into multiple pieces, making disassembly and maintenance more precise, quick and convenient. Second, the support rod ensures that the relatively thin back panel will not deform, and can also form a connection and mutual support for the left and right vertical frame rods, further increasing the structural stability and safety of the entire sign. Third, the support rod also adopts the same special design of limiting slides, load-bearing plates and pressure members as the horizontal frame rods, facilitating the flexible removal and re-installation of the back panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The present invention is a schematic diagram of the back structure principle of a luminous road traffic sign after installation in the prior art.

[0033] Figure 2 It is a schematic diagram of the side view structure principle of the luminous road traffic sign of the present invention when the support rod is not installed.

[0034] Figure 3 It is a schematic diagram of the structural principle of the transverse border rod of the present invention.

[0035] Figure 4 It is a schematic diagram of the structural principle of a transverse border rod in another embodiment of the present invention.

[0036] Figure 5 It is a schematic diagram of the structural principle of the support rod of the present invention.

[0037] Figure 6 It is a schematic diagram of the structural principle of the horizontal frame rod and the support rod when they are coordinated with each other.

[0038] Figure 7 It is a schematic diagram of the side view structure principle of the luminous road traffic sign of the present invention when the support rod is installed.

[0039] Figure 8 This is a schematic diagram of the partial structure principle of the luminous road traffic sign of the present invention. Figure 1 .

[0040] Figure 9 This is a schematic diagram of the partial structure principle of the luminous road traffic sign of the present invention. Figure 2 .

[0041] Figure 10 This is a schematic diagram of the partial structure principle of the luminous road traffic sign of the present invention. Figure 3 .

[0042] Figure 11 This is a schematic diagram of the three-dimensional structure principle of the pressing member of the present invention Figure 1 .

[0043] Figure 12 It is a schematic diagram of the structural principle of the limiting rod and the back plate of the present invention when they are installed in coordination.

[0044] Figure 13 It is a schematic diagram of the three-dimensional structural principle of the slider of the present invention.

[0045] Figure 14 It is a schematic diagram of the three-dimensional structural principle of the rod body of the present invention.

[0046] Figure 15 This is a schematic diagram of the three-dimensional structure principle of the pressing member of the present invention Figure 2 .

[0047] Figure 16 This is a schematic diagram of the three-dimensional structure principle of the pressing member of the present invention Figure 3 .

[0048] Figure 17 It is a schematic diagram of the back structure principle of the luminous road traffic sign of the present invention.

[0049] Figure 18 It is a schematic diagram of the structural principle of the luminous road traffic sign of the present invention when installed in conjunction with an external suspension rod.

[0050] The numbers in the figure represent:

[0051] 1. Panel assembly; 11. First panel mounting plate; 2. Light source board assembly; 3. Back panel; 31. First hooking part; 4. Frame assembly; 41. Horizontal border rod; 411. Bottom plate; 412. Side panel; 413. Light bar mounting groove; 414. Second panel mounting plate; 42. Vertical border rod; 43. Support rod; 5. Limiting slide groove; 6. Loading plate; 7. Pressing part; 71. Sliding part; 72. Mounting part; 73. Pressing piece; 74. Second hooking part; 8. Limiting rod; 81. Sliding block; 82. Limiting slot; 83. Rod body; 831. Upper plate; 832. Lower plate; 833. Connecting part; 84. Waist-shaped hole; 9. Mounting slide groove; 10. Light source mounting plate. DETAILED DESCRIPTION

[0052] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0053] like Figures 2 to 18 As shown, the present invention provides a luminous road traffic sign, including a panel assembly 1, a light source panel assembly 2, a frame assembly 4 and one or more back panels 3. The panel assembly 1 can be either fully transparent or semi-transparent. The frame assembly 4 includes at least two horizontal frame rods 41 and two vertical frame rods 42. A limiting slide 5 is provided on the horizontal frame rod 41 along the axis of the frame rod, and a bearing plate 6 is provided near the notch of the limiting slide 5, that is, the limiting slide 5 and the bearing plate 6 are arranged in parallel. The bearing plate 6 is used to support the back panel 3. A plurality of slidable pressing members 7 are provided in the limiting slide 5, which are used to detachably press and fix the back panel 3 on the bearing plate 6 of the horizontal frame rod 41 so as to facilitate quick removal for maintenance. It should be specially noted that: with respect to the back panel 3, it can be either a whole back panel 3 (when the overall area of ​​the sign is not large), or it can be as follows Figure 17 As shown, the back plate 3 can be further divided into multiple sections (when the overall area is large). Such simple changes should fall within the scope of protection of the present invention. In this embodiment, the luminous road traffic sign is also provided with a hook portion (not shown in the figure) for allowing external lifting equipment to lift the luminous road traffic sign into the air through the hook portion for installation.

[0054] The specific implementation principles are as follows:

[0055] When the luminous road traffic sign of the present invention is manufactured, the back plate 3 is first carried on the bearing plate 6 of the transverse frame rod 41, and then is pressed and fixed to the transverse frame rod 41 by a plurality of slidable clamping members 7 on the transverse frame rod 41. Then it is hoisted and fixed to the side of the road. Regarding high-altitude hoisting and fixing, it can be installed by installing the slide groove 9 as described below, or it can be fixed by forming a suspended hoisting fixation through the top hoisting member, or fixed by the vertical frame rods on both sides, which will not be described in detail here. In this embodiment, the method of fixing the external hanging rod and the transverse thick fixing rod in layers in the prior art is used as an example. When it is necessary to maintain the interior of the luminous road traffic sign in the air, the construction personnel can directly rise to the air through the elevator without unloading the heavy luminous road traffic sign, and then easily loosen the corresponding clamping member 7 for the area that needs maintenance, and then the back plate 3 can be removed for quick, targeted and precise maintenance. Even if you encounter such Figure 1 The situation at circle F in the figure is that the outer hanging rod and the fastener are above the back panel 3, and the pressing member 7 is below the outer hanging rod. However, as is well known, the outer hanging rod and the back panel 3 are not in direct contact, there is still a certain space between the two (the height of the mounting slot, because the outer hanging rod is supported on the mounting slot, and the mounting slot protrudes from the back panel 3), so the operator can still easily loosen the pressing member 7 (because the pressing member 7 does not extend into the back panel 3 like a screw or rivet, but is pressed on the back panel 3. Even if this space is very small, it can still be easily kept in a non-squeezed state). After all the pressing members 7 on the back panel 3 to be removed are loosened, the back panel 3 is no longer fixed to the supporting plate 6. Precisely because the outer hanging rod and all the back panels 3 are not in direct contact and there is still a certain space between the two (this space is at least thicker than the thickness of the back panel), the back panel 3 can be lifted up at this time and gradually moved from this space toward the side of the luminous road traffic sign and finally removed.

[0056] After maintenance is completed, the back panel 3 is reinstalled along its original path. Specifically, the back panel 3, having been moved horizontally into position, is first placed on the support plate 6 of the transverse frame rod 41. It is then secured to the transverse frame rod 41 using multiple slidable clamping members 7 on the transverse frame rod 41. If a clamping member 7 was originally located below the external suspension rod during disassembly, it can be slid below the external suspension rod during reinstallation and then re-pressed against the back panel 3. This means that each clamping member 7 can be restored to its original installation position for installation. It should be noted that during construction, to further ensure sealing, a thin layer of elastic material can be provided at the edge of the back panel 3 or on the support plate 6. When the back panel 3 is pressed against the support plate 6, the elastic layer is compressed, creating a seal between the two. Furthermore, a layer of waterproof glue can be applied to the outer surface of the back panel 3 where it contacts the transverse frame rod 41. This waterproof glue is applied to the outer surface, rather than being applied between the back panel and the support plate 6 as in the prior art. This allows the user to easily scrape off the waterproof glue on the outer surface by using a scraper or other tool when removing the back plate 3 .

[0057] Through the above special scientific design, it has the following advantages:

[0058] First, the luminous road traffic sign of the present invention is provided with a special transverse frame rod 41 and a pressing part 7, which completely subverts the existing backboard fixing form. The corresponding backboard 3 can be easily and quickly removed and reinstalled for the area that needs maintenance, which can achieve fast, targeted and accurate maintenance, short working time, high work efficiency, and greatly reduced maintenance costs.

[0059] Secondly, the luminous road traffic sign of the present invention will not cause damage or deformation to the back panel 3 regardless of whether the back panel 3 is removed or reinstalled, and there is no need to punch holes in the transverse frame rod 41. Each pressing member 7 can be restored to its original installation position for installation, effectively ensuring the integrity of each component, and thus effectively ensuring the overall sealing, stability and safety of the sign.

[0060] Third, the design of the slidable clamping member 7 of the luminous road traffic sign of the present invention not only facilitates later maintenance and disassembly, but also greatly facilitates the initial production of the sign. Because the design of the light source panel assembly 2 inside the sign varies during production, the size of the back 3 and the position where the back 3 needs to be fixed are uncertain. The provision of a slidable clamping member 7 allows for flexible installation by selecting different numbers of clamping members 7 and adjusting the positions of the clamping members 7 according to actual needs during final clamping and fixing, making production convenient, fast, and highly stable.

[0061] like Figure 8 、 Figure 10 、 Figure 12 、 Figure 13 、 Figure 14 、 Figure 17 As shown, further, in a preferred embodiment, it includes at least two back panels 3 arranged in sequence in the horizontal direction, and the two back panels 3 adjacent to each other on the left and right sides are connected by a vertical limiting rod 8. The limiting rod 8 includes a rod body 83, and the upper and lower ends of the rod body 83 are each provided with a slider 81 that can slide in the limiting slide groove 5, and the left and right sides of the rod body 83 are each provided with a limiting slot 82, so that the left and right back panels 3 are respectively inserted into the limiting slot 82. The special design of the limiting rod 8 has the following advantages: First, the limiting rod 8 is equivalent to a supporting rod, which can support the back panels 3 on both sides, ensuring that the relatively thin back panels 3 will not be deformed, and can also form a connection and mutual support for the upper and lower transverse frame rods 4, further increasing the structural stability and safety of the entire sign; second, it completely subverts the backward design of the prior art in which the back panels are overlapped together in sequence and then glued and fixed. The slot design increases the connection stability and sealing between the two adjacent back panels 3 (during construction, in order to further ensure the sealing, a thin layer of elastic layer material can be set in the limiting slot 82; of course, a layer of waterproof glue can also be applied to the outer surface of the connection between the back panel 3 and the limiting rod 8. The waterproof glue is applied to the outer surface, instead of being pasted between the back panels 3 and the back panels 3 like the fixing glue in the prior art. This makes it possible to easily scrape off the waterproof glue on the outer surface when the back panel 3 needs to be removed.). Third, all the back panels 3 are in the same horizontal plane, making the sign more beautiful. Fourth, to further ensure ease of disassembly, the limiting rod 8 and the transverse frame rod 41 are designed to slide together. This allows for easy adjustment of the position of the limiting rod 8 during disassembly, facilitating the removal and reinstallation of multiple back panels 3. In other words, the limiting rod 8 of the present invention satisfies the requirements of structural stability, sealing, aesthetics, and ease of disassembly.

[0062] Furthermore, in a preferred embodiment, a waist-shaped hole 84 is provided on the end of the rod 83 or the slider 81 for adjustably securing the slider 81 to the rod 83 via a screw. In other words, in this embodiment, the rod 83 and the slider 81 are detachably connected, and the connection position can also be fine-tuned. This unique and scientific design has the following advantages:

[0063] First, since the signs have many different models and sizes during the production process, the design of detachable connection allows the length of the limit rod 8 to be flexibly adjusted to adapt to different production requirements during actual production (just cut the rod body 83 of different lengths to match the slider 81). This greatly increases the practicality of the limit rod 8, saves production costs and raw material backlogs, and makes production more convenient and quick. Second, in the actual process, production errors may occur. At this time, the design of the waist-shaped hole 84 can be used to fine-tune the length of the entire limit rod 8 for easy installation. Third, when the sign is disassembled for maintenance in the later stage, if the sign is slightly deformed due to wind and sun in nature, it is inconvenient for the overall sliding of the limit rod 8. At this time, the rod body 83 can be removed or the screw can be loosened to adjust the length of the limit rod 8 to facilitate the overall sliding of the limit rod 8, thereby facilitating the subsequent disassembly of the back panel 3.

[0064] like Figure 12 、 Figure 13 、 Figure 14 As shown, further, in a preferred embodiment, the rod body 83 includes an upper plate portion 831 and a lower plate portion 832 arranged in parallel. The middle portions of the upper plate portion 831 and the lower plate portion 832 are connected by a connecting portion 833 to form two limiting slots 82 between the upper plate portion 831 and the lower plate portion 832. After installation, the upper plate portion 831 is used to contact the slider 81, and the top surface of the lower plate portion 832 and the top surface of the supporting plate 6 are on the same horizontal plane to facilitate the flat sealing of the back plate 3. The screw member is installed at the position of the connecting portion 833. Through this special design, while ensuring the fixed connection between the rod body 83 and the slider 81, the top surface of the lower plate portion 832 and the top surface of the supporting plate 6 are on the same horizontal plane. This ensures that the back plate 3 inserted into the limiting slot 82 is also supported on the supporting plate 6, and the installation flatness of the back plate 3 is guaranteed, thereby effectively ensuring the stability and sealing of the two structures.

[0065] like Figures 5 to 7 、 Figure 17As shown, further, in a preferred embodiment, it includes at least two back panels 3 arranged in sequence in the vertical direction, and the frame assembly 4 also includes one or more support rods 43 arranged in parallel between the two horizontal frame rods 41. The two vertically adjacent back panels 3 are connected by the horizontal support rods 43. The support rods 43 are also provided with matching limiting grooves 5 and bearing plates 6 on both sides along the axial direction. The two limiting grooves 5 of the support rods 43 are also provided with multiple slidable clamping members 7, which are used to detachably clamp the back panel 3 on the bearing plates 6 of the support rods 43 so as to facilitate quick removal for maintenance. When the overall area of ​​the sign is large, in order to make the disassembly work more accurate, fast and convenient, the back panel 3 needs to be further divided. The above-mentioned limiting rod 8 solves the connection problem between the two horizontal left and right back panels 3, while the support rods 43 of this embodiment solves the connection problem between the two vertical upper and lower back panels 3. By setting a special support rod 43, the following technical advantages are achieved:

[0066] First, the support rods 43 support and mount the vertical upper and lower back panels 3, allowing the sign's back panel to be further divided into multiple pieces, making disassembly and maintenance more precise, quick, and convenient. Second, the support rods 43 prevent the relatively thin back panel 3 from deforming and connect and support the left and right vertical border rods 42, further enhancing the structural stability and safety of the entire sign. Third, the support rods 43 employ the same specialized design as the horizontal border rods 41: a limited slide 5, a load-bearing plate 6, and a compression member 7, facilitating flexible disassembly and reinstallation of the back panel 3.

[0067] Furthermore, in a preferred embodiment, at least one of the horizontal frame rod 41 and the support rod 43 is provided with a mounting slot 9 for fixedly connecting the luminous road traffic sign to the external suspension rod through a fixing member. The limiting slot 5 is provided on the side of the mounting slot 9 so that the bottom plate portion of the limiting slot 5 and the side plate portion of the mounting slot 9 are shared. The design of the mounting slot 9 facilitates the formation of an interlaced fixed connection with multiple vertical external suspension rods through fixing members (generally clamps), which is convenient for installation. More importantly, if Figure 18 As shown, the limiting chute 5 is arranged on the side of the installation chute 9, and the bottom plate of the limiting chute 5 and the side plate of the installation chute 9 are cleverly shared. First, the cost of manufacturing materials is saved, and the two support each other and the structure is more stable. Second, the limiting chute 5 is designed on the side of the installation chute 9 to ensure the disassembly space of the pressing member 7 and the movement space of the back plate 3. Figure 18 As shown, the external suspension rod G is supported on the mounting groove 9, which leaves a certain spacing space between the external suspension rod G and the clamping member 7, and between the external suspension rod G and the back plate 3 (the spacing space is M as shown in the figure), which facilitates the disassembly of the clamping member 7 and the movement of the back plate 3 during maintenance operations.

[0068] Furthermore, in a preferred embodiment, both the transverse frame rods 41 and the support rods 43 are provided with light source mounting plates 10, arranged parallel to the carrier plate 6, for securing the light source panel assembly 2. This allows the light source mounting plates 10 to provide excellent support for the light source panel assembly 2 and also provides an excellent mounting location. Mounting methods include clamping, screws, rivets, gluing, or a combination of screws and gluing.

[0069] Furthermore, in the preferred embodiment, both the transverse frame bars 41 and the support bars 43 are equipped with first panel mounting plates 11, arranged parallel to the carrier plate 6, for supporting and securing the panel assembly 1. This provides excellent support for the sign panel. In other words, the transverse frame bars 41 and the support bars 43 simultaneously provide excellent positioning and support for the panel assembly 1, the light source panel assembly 2, and the back panel 3, ensuring a stable overall sign structure.

[0070] Furthermore, in a preferred embodiment, a first hook portion 31 is provided on the backboard 3, which is used to detachably connect the backboard 3 and an external safety rope through the first hook portion 31 when the backboard 3 is moved, so as to prevent the backboard 3 from falling from a high altitude. Since the backboard 3 itself has a certain weight, and during high-altitude operations, it is affected by the intricate fixed rods on the back of the sign and the operating environment, and the disassembled backboard 3 may slip out of the hands when it is moved. In severe cases, the backboard 3 may fall directly from between the fixed rods to the ground, which not only damages the backboard 3, but also may cause injuries to personnel and equipment, leading to safety accidents. For this reason, the present invention further provides a first hook portion 31 on the backboard 3. During operation, the operator can use an external safety rope such as a rope or chain, one end of which is temporarily connected to the first hook portion 31, and the other end is connected to the operator, so as to prevent the backboard 3 from falling when it is lost, thereby greatly improving the safety of the operation. In this embodiment, if Figures 8 and 9 As shown, the first hooking portion 31 includes a raised column provided on the back plate 3. In other embodiments, it can also be provided as a buckle or other designs, as long as it can be detachably connected to the external safety rope.

[0071] Furthermore, in a preferred embodiment, the pressing member 7 is provided with a second hook portion 74. When the backboard 3 is moved, the two ends of the external safety rope are detachably connected to the first hook portion 31 and the second hook portion 74 respectively. In this way, the backboard 3 to be moved and the pressing member 7 can be directly temporarily connected together, and the pressing member 7 can also slide together when the backboard 3 is moved. In this way, there is no need to connect the external safety rope to the operator, and the external safety rope will not cause any obstruction or impact on the operator's work. In this embodiment, if Figure 11As shown, the second hook portion 74 also includes a raised column provided on the pressing member 7. In other embodiments, it can also be provided as a buckle or a recessed hook portion or other designs, as long as it can be detachably connected to the external safety rope.

[0072] Furthermore, in a preferred embodiment, the transverse frame rod 41 is provided with a bottom plate 411 extending outward, and the outer end of the bottom plate 411 is provided with an upward side plate 412 for enclosing and forming a light bar mounting groove 413 with an upper end opening, and the top of the side plate 412 is provided with a second panel mounting plate 414 for supporting and fixing the panel assembly 1. That is, the transverse frame rod 41 of the present invention has at least two designs: one is as follows: Figure 3 As shown, the horizontal border rod 41 is relatively wide, and a light bar installation groove 413 is provided on its front side, in which a light bar can be installed. The luminous road traffic sign made by such a horizontal border rod 41 will have a circle of luminous side strips when viewed from the front. Figure 2 As shown, the horizontal border rod 41 is relatively narrow, and no light bar mounting groove 413 is provided on the front side thereof.

[0073] like Figures 9 to 11 As shown, in a preferred embodiment, the pressing member 7 includes a sliding portion 71 that slides within the limiting chute 5. The sliding portion 71 is provided with a mounting portion 72 that extends from the notch of the limiting chute 5. The mounting portion 72 is mounted with a rotatable pressing piece 73, which is used to press the pressing piece 73 against the back plate 3 or release it from contact with the back plate 3. In this embodiment, the pressing piece 73 is mounted to the mounting portion 72 via a rotating shaft, allowing for left-right rotation. This unique structural design is very ingenious. Firstly, it is simple and easy to manufacture. Secondly, the left-right sliding motion facilitates operation. Even in the unusual position close to the external suspension rod described above, the operator can simply use a small tool such as a screwdriver to press the pressing piece 73 from the side and then rotate it, making operation very simple and convenient. In this embodiment, the pressing piece 73 is not straight, but rather has a zigzag shape, which provides it with a certain elastic compressive force. When pressed against the back plate 3, it can be squeezed and deformed, firmly pressing the back plate 3 against the support plate 6.

[0074] Inspired by the above embodiments and disclosed technical features, the present invention further provides two other implementations of the pressing member 7. It should be noted that the protection scope of the present invention is not limited to the following implementations.

[0075] Example 1, as Figure 15 As shown, in this embodiment, the clamping member 7 includes a sliding portion 71 that slides in the limiting slide groove 5, and the sliding portion 71 is provided with a mounting portion 72 that extends from the notch of the limiting slide groove 5. The mounting portion 72 is provided with a cam pressure block that can be flipped up and down. When pressed, the cam pressure block squeezes the pressure block onto the back plate 3.

[0076] Example 2, as Figure 16 As shown, in this embodiment, the clamping member 7 includes a sliding portion 71 that slides in the limiting slide groove 5, and the sliding portion 71 is provided with a mounting portion 72 that extends from the slot of the limiting slide groove 5. The mounting portion 72 is provided with a slot, and a pressure block with a torsion spring is installed in the slot. The torsion spring allows the pressure block to be squeezed onto the back panel 3 when pressed.

[0077] It should be noted that, in order to make the description clearer and more intuitive, the present invention adopts the description form of horizontal frame rod 4, horizontal support rod 43, and vertical limit rod 8, and makes the back plate 3 follow the horizontal direction (such as Figure 17 The back panel 3 is removed by moving it in the direction of the arrow in the middle. This horizontal direction is not a limitation of the technical solution. In light of the technical features disclosed in the above embodiment, a person skilled in the art can also make some simple changes. For example, the horizontal frame rods 4 and the support rods 43 are both arranged longitudinally, and the limit rods 8 are arranged transversely, so that the back panel 3 can be removed and installed in the vertical direction. These simple changes should all fall within the scope of protection of the present invention. It should also be noted that the above embodiment does not limit the two vertical frame rods 42 of the sign. In specific implementation, the two vertical frame rods 42 can adopt the same design as the horizontal frame rods 41, that is, multiple pressing members 7 are used to press the back panel 3. Of course, the pressing members 7 can also be omitted. Because the back panel 3 is already pressed by multiple pressing members 7 above and below, a layer of waterproof glue can be applied to the outer surface of the back panel 3 and the vertical frame rods 42 at the contact point. The waterproof glue is applied to the outer surface instead of the fixed glue as in the prior art. This makes it possible to easily scrape off the waterproof glue on the outer surface using a scraper or other tool when removing the back panel 3.

[0078] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, utilize the technical content disclosed above to make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the scope of protection of the technical solution of the present invention.

Claims

1. A luminous road traffic sign, comprising a panel assembly (1), a light source panel assembly (2), a frame assembly (4) and one or more back panels (3), wherein the frame assembly (4) comprises at least two transverse frame rods (41) and two vertical frame rods (42), characterized in that: A limiting slot (5) is provided on the transverse frame rod (41) along the axial direction, and a bearing plate (6) is provided near the notch of the limiting slot (5). The bearing plate (6) is used to support the back plate (3). A plurality of slidable pressing members (7) are provided in the limiting slot (5) for detachably pressing and fixing the back plate (3) on the bearing plate (6) of the transverse frame rod (41) so as to facilitate quick removal for maintenance; the back plate (3) comprises at least two back plates (3) arranged in sequence in the transverse direction, and two back plates (3) adjacent to each other in the transverse direction are arranged in sequence in the transverse direction. 3) are connected by a vertical limiting rod (8), the limiting rod (8) comprising a rod body (83), the upper and lower ends of the rod body (83) are each provided with a slider (81) that can slide in the limiting slide groove (5), and the left and right sides of the rod body (83) are each provided with a limiting slot (82) so that the left and right back plates (3) are respectively inserted into the limiting slot (82); a hook portion is also provided so that an external lifting device can lift the luminous road traffic sign into the air through the hook portion for installation during installation.

2. The luminous road traffic sign according to claim 1, characterized in that: A waist-shaped hole (84) is provided on the end of the rod body (83) or the slider (81) for adjustably fixing the slider (81) to the rod body (83) via a screw.

3. The luminous road traffic sign according to claim 1, characterized in that: The rod body (83) includes an upper plate portion (831) and a lower plate portion (832) arranged in parallel. The middle portions of the upper plate portion (831) and the lower plate portion (832) are connected by a connecting portion (833) to form two limiting slots (82) between the upper plate portion (831) and the lower plate portion (832). After installation, the upper plate portion (831) is used to contact the slider (81), and the top surface of the lower plate portion (832) and the top surface of the bearing plate (6) are on the same horizontal plane to facilitate the flat sealing of the back plate (3).

4. The luminous road traffic sign according to claim 1, characterized in that: The invention comprises at least two back panels (3) arranged in sequence in a vertical direction, and the frame assembly (4) further comprises one or more support rods (43) arranged in parallel between two transverse frame rods (41). The two vertically adjacent back panels (3) are connected via the transverse support rods (43). The support rods (43) are also provided with matching limiting grooves (5) and bearing plates (6) on both sides along the axial direction. The two limiting grooves (5) of the support rods (43) are also provided with a plurality of slidable pressing members (7) for detachably pressing and fixing the back panel (3) on the bearing plate (6) of the support rods (43) so as to facilitate quick removal for maintenance.

5. The luminous road traffic sign according to claim 4, characterized in that: At least one of the transverse frame rod (41) and the support rod (43) is further provided with a mounting slot (9) for fixedly connecting the luminous road traffic sign to the external suspension rod via a fixing member, and the limiting slot (5) is provided on the side of the mounting slot (9) so that the bottom plate portion of the limiting slot (5) and the side plate portion of the mounting slot (9) are shared.

6. The luminous road traffic sign according to claim 4, characterized in that: The transverse frame rod (41) and the support rod (43) are both provided with a light source mounting plate (10) arranged parallel to the carrier plate (6) for fixing the light source plate assembly (2).

7. The luminous road traffic sign according to claim 4, characterized in that: The transverse frame rod (41) and the support rod (43) are both provided with a first panel mounting plate (11) arranged parallel to the bearing plate (6) for supporting and fixing the panel assembly (1).

8. The luminous road traffic sign according to claim 1, characterized in that: The backboard (3) is provided with a first hook portion (31) for detachably connecting the backboard (3) and an external safety rope via the first hook portion (31) when the backboard (3) is moved, thereby preventing the backboard (3) from falling from a high altitude.

9. The luminous road traffic sign according to claim 8, characterized in that: The pressing member (7) is provided with a second hook portion (74), and when the back plate (3) is moved, the two ends of the external safety rope are detachably connected to the first hook portion (31) and the second hook portion (74), respectively.

10. The luminous road traffic sign according to any one of claims 1 to 9, characterized in that: The transverse frame rod (41) is provided with a bottom plate (411) extending outward, and the outer end of the bottom plate (411) is provided with an upward-facing side plate (412) for enclosing and forming a light bar mounting groove (413) with an upper end opening, and the top of the side plate (412) is provided with a second panel mounting plate (414) for supporting and fixing the panel assembly (1).

11. The luminous road traffic sign according to any one of claims 1 to 9, characterized in that: The pressing member (7) includes a sliding portion (71) that slides in the limiting slide groove (5), the sliding portion (71) is provided with a mounting portion (72) that extends from the notch of the limiting slide groove (5), and the mounting portion (72) is provided with a pressing piece (73) that can rotate left and right.

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