A traffic sign hanging position measuring device
By installing clamping components and displacement detection components on traffic signs, the system detects when the signs fall and illuminates an indicator light to remind the driver to adjust the vehicle's position. This solves the problem of reduced suspension height caused by wind-induced loosening of the signs and improves safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SICHUAN CHENGLE EXPRESSWAY CO LTD
- Filing Date
- 2026-05-19
- Publication Date
- 2026-07-21
AI Technical Summary
Road traffic signs are prone to loosening and shifting downwards in strong winds, causing a decrease in their hanging height, which may lead to vehicle collisions and damage.
Design a traffic sign suspension position measuring device, including a clamping component, a displacement detection component, and a displacement indicator light. The device detects the downward movement of the sign and illuminates the indicator light to remind the driver to adjust the vehicle position to avoid scratches.
This effectively prevents traffic signs from being scratched by vehicles due to their lowered hanging height, thus improving the safety of both traffic signs and vehicles.
Smart Images

Figure CN122428604A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of road traffic safety technology, specifically a traffic sign hanging position measuring device. Background Technology
[0002] Road traffic signs are graphic symbols used to display traffic regulations and road information. They provide a vivid, concrete, and concise expression of traffic regulations, as well as conveying information that is difficult to describe in words. These signs are used to manage traffic, indicate driving directions, and ensure smooth traffic flow and road safety. They are applicable to highways, urban roads, and all special-purpose roads, and have the force of law, which vehicles and pedestrians must obey. Road traffic signs mainly include prohibitory signs, warning signs, tourist signs, speed limit signs, directional signs, reflective signs, and safety signs.
[0003] Currently, some road traffic signs are fixed and suspended directly above the road using gantry frames to convey relevant information to drivers. Due to the large surface area of the signs, they are prone to loosening relative to the gantry frames under strong winds. Loose signs will shift downwards relative to the gantry frames, resulting in a lower suspension height. With a lower suspension height, taller vehicles are more likely to scrape the signs when driving under them, causing damage to both the vehicles and the signs. Summary of the Invention
[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a traffic sign hanging position measuring device.
[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A traffic sign suspension position determination device includes a traffic sign body, a gantry frame, a power supply box, a clamping assembly, a displacement detection assembly, a conductive assembly, and a displacement indicator light. The traffic sign body is fixedly installed on one side of the gantry frame. The power supply housing, the displacement detection component, and the displacement indicator light are mounted on the gantry frame via the clamping assembly. A power supply is located inside the power supply housing. The displacement indicator light is located above the traffic sign body, and the conductive component is disposed on one side of the displacement detection component. The displacement detection component contacts the back of the traffic sign body to detect the downward movement of the traffic sign body. When the displacement detection component detects that the traffic sign body has moved downward, the conductive component connects the built-in power supply of the power supply box to the displacement indicator light, and the built-in power supply of the power supply box supplies power to the displacement indicator light, causing the displacement indicator light to light up.
[0006] As a further improvement of the present invention: the clamping assembly includes an upper arc-shaped clamping plate and a lower arc-shaped clamping plate. The upper arc-shaped clamping plate is hinged to the lower arc-shaped clamping plate at one end, and the other end is connected by bolts. The power supply box is fixedly installed on the upper part of the upper arc-shaped clamping plate.
[0007] As a further improvement of the present invention: an L-shaped support rod is fixedly installed on the upper part of the power supply box, and the end of the L-shaped support rod away from the power supply box extends to the top of the traffic sign body and is connected to the displacement indicator light.
[0008] As a further improvement of the present invention: the displacement detection assembly includes a first roller, a first U-shaped plate, a first rotating shaft, a first telescopic rod, a first elastic element, and a first telescopic cylinder. The first telescopic column is fixedly installed on the side wall of the L-shaped bracket rod facing the traffic sign body. One end of the first telescopic rod extends into the interior of the first telescopic column and telescopically engages with the first telescopic column, while the other end extends out of the first telescopic column and is fixedly connected to the first U-shaped plate. The first roller is disposed inside the first U-shaped plate and rotates with the first U-shaped plate through the first rotating shaft. One end of the first elastic element is connected to the first telescopic column and the other end is connected to the first U-shaped plate, which provides elastic support for the first U-shaped plate, so that the first roller contacts the back of the traffic sign body.
[0009] As a further improvement of the present invention: the conductive component includes a first conductive block, a second conductive block, a first conductive wire, a second conductive wire, and a third conductive wire. The first conductive block is fixedly mounted on the inner wall of the first U-shaped plate, the second conductive block is fixedly mounted on the circumferential side wall of the first roller, the positive terminal of the built-in power supply of the power supply box is connected to the second conductive block through the first conductive line, the negative terminal of the built-in power supply of the power supply box is connected to the displacement indicator light through the third conductive line, and the first conductive block is connected to the displacement indicator light through the second conductive line.
[0010] As a further improvement of the present invention: the first telescopic rod and the L-shaped support rod are hollow inside, and part of the second conductive wire and the third conductive wire are arranged in the inner cavity of the first telescopic rod, the first telescopic cylinder and the L-shaped support rod.
[0011] As a further improvement of the present invention: a first annular rubber ring is provided on the circumferential sidewall of the first roller, which contacts the back of the traffic sign body.
[0012] As a further improvement of the present invention: a balancing support assembly is provided below the gantry frame, and the balancing support assembly provides support for the back of the traffic sign body from below the gantry frame.
[0013] As a further improvement to the present invention: a support rod is fixedly provided at the bottom of the lower arc-shaped clamping plate. The balance support assembly includes a second roller, a second U-shaped plate, a second rotating shaft, a second telescopic rod, a second elastic element, and a second telescopic column. The second telescopic column is fixedly installed on the side wall of the support rod facing the traffic sign body. One end of the second telescopic rod extends into the interior of the second telescopic column and telescopically engages with it, while the other end extends out of the second telescopic column and is fixedly connected to the second U-shaped plate. The second roller is disposed inside the second U-shaped plate and rotates with the second U-shaped plate through the second rotating shaft. One end of the second elastic element is connected to the second telescopic column and the other end is connected to the second U-shaped plate, which provides elastic support for the second U-shaped plate so that the second roller contacts the back of the traffic sign body.
[0014] As a further improvement of the present invention: a second annular rubber ring is provided on the circumferential sidewall of the second roller, which contacts the back of the traffic sign body.
[0015] Compared with the prior art, the beneficial effects of the present invention are: In this embodiment of the invention, the power supply box, displacement detection component, and displacement indicator light are mounted on a gantry frame using a clamping assembly. When the traffic sign body loosens and shifts due to prolonged exposure to wind, the displacement detection component detects the shift. The conductive component connects the power supply built into the power supply box to the displacement indicator light, illuminating the indicator light. Drivers can then use the illuminated indicator light to determine that the traffic sign body has shifted, allowing them to adjust their vehicle to avoid being directly below the sign body and preventing scratches caused by the reduced suspension height. Compared to existing technologies, this invention automatically determines the suspension position of the traffic sign body. When the traffic sign body loosens and shifts due to prolonged exposure to strong winds, it automatically alerts the driver, preventing the shifted sign body from scratching the vehicle and causing property damage, thus improving the safety of both the vehicle and the traffic sign body. Attached Figure Description
[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 A schematic diagram of the back structure of a traffic sign body in a traffic sign suspension position measuring device. Figure 1 ; Figure 2 A schematic diagram of the back structure of a traffic sign body in a traffic sign suspension position measuring device. Figure 2 ; Figure 3 This is a schematic diagram of the front structure of the traffic sign body in a traffic sign suspension position measuring device; Figure 4 for Figure 1 Enlarged view of region A in the middle; Figure 5 for Figure 1 Enlarged view of region B in the middle; Figure 6 for Figure 2 Enlarged diagram of region C in the middle; Figure 7 for Figure 3 Enlarged schematic diagram of region D in the middle; In the diagram: 100 - Traffic sign body, 200 - Gantry frame, 300 - Power supply box, 3001 - L-shaped support rod, 400 - Clamping assembly, 4001 - Upper arc-shaped clamping plate, 4002 - Lower arc-shaped clamping plate, 4003 - Support rod, 500 - Displacement detection assembly, 5001 - First annular rubber ring, 5002 - First roller, 5003 - First U-shaped plate, 5004 - First rotating shaft, 5005 - First telescopic rod, 5006 - First elastic element, 5007 - First... Telescopic column, 600-conductive component, 6001-first conductive block, 6002-second conductive block, 6003-first conductive wire, 6004-second conductive wire, 6005-third conductive wire, 700-balance support component, 7001-second annular rubber ring, 7002-second roller, 7003-second U-shaped plate, 7004-second rotating shaft, 7005-second telescopic rod, 7006-second elastic element, 7007-second telescopic column, 800-displacement indicator light. Detailed Implementation
[0018] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0021] The present invention will be further explained below with reference to specific embodiments.
[0022] Please see Figure 1 , Figure 2 as well as Figure 3 This embodiment provides a traffic sign suspension position measuring device, including a traffic sign body 100, a gantry frame 200, a power supply box 300, a clamping assembly 400, a displacement detection assembly 500, a conductive assembly 600, and a displacement indicator light 800. The traffic sign body 100 is fixedly installed on one side of the gantry frame 200. The power supply box 300, the displacement detection assembly 500, and the displacement indicator light 800 are installed on the gantry frame 200 via the clamping assembly 400. The power supply box 300 contains a power source (not shown in the figure). The displacement indicator light 800 is located at... Above the traffic sign body 100, the conductive component 600 is disposed on one side of the displacement detection component 500. The displacement detection component 500 is in contact with the back of the traffic sign body 100 and is used to detect the downward movement of the traffic sign body 100. When the displacement detection component 500 detects that the traffic sign body 100 has moved downward, the conductive component 600 is used to connect the built-in power supply of the power supply box 300 to the displacement indicator light 800. The built-in power supply of the power supply box 300 supplies power to the displacement indicator light 800, causing the displacement indicator light 800 to light up.
[0023] The power supply box 300, displacement detection component 500, and displacement indicator light 800 are mounted on the gantry frame 200 by the clamping component 400. When the traffic sign body 100 loosens and moves downward due to long-term exposure to wind, the displacement detection component 500 detects the downward movement of the traffic sign body 100. The conductive component 600 connects the built-in power supply of the power supply box 300 to the displacement indicator light 800. The built-in power supply of the power supply box 300 supplies power to the displacement indicator light 800, causing the displacement indicator light 800 to light up. The driver can use the lighting signal of the displacement indicator light 800 to determine that the traffic sign body 100 has moved downward, so that the driver can adjust the vehicle in time to avoid being directly below the traffic sign body 100 and avoid the traffic sign body 100 from being scratched by the vehicle due to the reduced suspension height.
[0024] Please see Figure 5 In one embodiment, the clamping assembly 400 includes an upper arc-shaped clamping plate 4001 and a lower arc-shaped clamping plate 4002. The upper arc-shaped clamping plate 4001 and the lower arc-shaped clamping plate 4002 are hinged at one end and connected at the other end by bolts. The power supply box 300 is fixedly installed on the upper part of the upper arc-shaped clamping plate 4001.
[0025] By fastening the upper arc-shaped clamp 4001 to the upper part of the portal frame 200, and then fastening the lower arc-shaped clamp 4002 to the bottom of the portal frame 200, and then locking the upper arc-shaped clamp 4001 and the lower arc-shaped clamp 4002 with bolts, the upper arc-shaped clamp 4001 and the lower arc-shaped clamp 4002 are clamped to the outside of the portal frame 200, thereby fixing the power supply box 300.
[0026] Please see Figure 1 , Figure 3 as well as Figure 7 In one embodiment, an L-shaped support rod 3001 is fixedly installed on the upper part of the power supply box 300. The end of the L-shaped support rod 3001 away from the power supply box 300 extends to the top of the traffic sign body 100 and is connected to the displacement indicator light 800.
[0027] When the displacement detection component 500 detects that the traffic sign body 100 has moved downward, the conductive component 600 connects the built-in power supply of the power box 300 to the displacement indicator light 800. The displacement indicator light 800 is powered on and illuminates above the traffic sign body 100 to remind the driver that the traffic sign body 100 has moved downward, so that the driver can adjust the vehicle in time to avoid the current position under the traffic sign body 100 or stop the vehicle directly to prevent the vehicle from being scratched by the traffic sign body 100.
[0028] Please see Figure 1 as well as Figure 4In one embodiment, the displacement detection assembly 500 includes a first roller 5002, a first U-shaped plate 5003, a first rotating shaft 5004, a first telescopic rod 5005, a first elastic element 5006, and a first telescopic column 5007. The first telescopic column 5007 is fixedly installed on the side wall of the L-shaped support rod 3001 facing the traffic sign body 100. One end of the first telescopic rod 5005 extends into the first telescopic column 5007 and telescopically engages with it, while the other end extends out of the first telescopic column 5007 and is fixedly connected to the first U-shaped plate 5003. The first roller 5002 is disposed inside the first U-shaped plate 5003 and rotatably engages with it via the first rotating shaft 5004. One end of the first elastic element 5006 is connected to the first telescopic column 5007, and the other end is connected to the first U-shaped plate 5004. Connected to 003, it provides elastic support for the first U-shaped plate 5003, allowing the first roller 5002 to contact the back of the traffic sign body 100. The conductive component 600 includes a first conductive block 6001, a second conductive block 6002, a first conductive wire 6003, a second conductive wire 6004, and a third conductive wire 6005. The first conductive block 6001 is fixedly disposed on the inner wall of the first U-shaped plate 5003, and the second conductive block 6002 is fixedly disposed on the circumferential side wall of the first roller 5002. The positive terminal of the built-in power supply of the power supply box 300 is connected to the second conductive block 6002 through the first conductive wire 6003, and the negative terminal of the built-in power supply of the power supply box 300 is connected to the displacement indicator light 800 through the third conductive wire 6005. The first conductive block 6001 and the displacement indicator light 800 are connected through the second conductive wire 6004.
[0029] After the upper arc-shaped clamping plate 4001 and the lower arc-shaped clamping plate 4002 are clamped onto the portal frame 200, the power supply box 300 and the L-shaped support rod 3001 are fixed. At this time, the worker can pull the first U-shaped plate 5003 to move the first telescopic rod 5005 into the first telescopic column cylinder 5007. The first elastic element 5006 is compressed, and the first roller 5002 moves away from the back of the traffic sign body 100. Then, the first roller 5002 is rotated so that the second conductive block 6002 is located below the first conductive block 6001 and does not contact the first conductive block 6001. Then, the first U-shaped plate 5003 is released, and the first elastic element 5006 pushes the first U-shaped plate 5003 to move the first telescopic rod 5005 outward from the first telescopic column cylinder 5007. The first telescopic rod 5005 drives the first U-shaped plate 5003 and the first roller 5002 closer to the traffic sign. The sign body 100 is positioned so that the first roller 5002 contacts the back of the traffic sign body 100. When the traffic sign body 100 loosens and moves downward due to long-term exposure to strong winds, the downward-moving traffic sign body 100 drives the first roller 5002 and the first rotating shaft 5004 to rotate relative to the first U-shaped plate 5003 through friction. When the first roller 5002 rotates, it drives the second conductive block 6002 to rotate synchronously. When the second conductive block 6002 rotates, it contacts the first conductive block 6001. At this time, the built-in power supply of the power supply box 300 and the displacement indicator light 800 form a conductive circuit through the first conductive block 6001, the second conductive block 6002 and three sets of conductive wires. The built-in power supply of the power supply box 300 supplies power to the displacement indicator light 800, causing the displacement indicator light 800 to light up above the traffic sign body 100 to remind the driver.
[0030] Please see Figure 4 In one embodiment, the first telescopic rod 5005 and the L-shaped support rod 3001 are hollow inside, and part of the second conductive wire 6004 and the third conductive wire 6005 are arranged in the inner cavity of the first telescopic rod 5005, the first telescopic column 5007 and the L-shaped support rod 3001.
[0031] Please see Figure 4 In one embodiment, a first annular rubber ring 5001 is provided on the circumferential sidewall of the first roller 5002, which contacts the back of the traffic sign body 100. The first annular rubber ring 5001 increases the friction force applied by the traffic sign body 100 to the first roller 5002 when the traffic sign body 100 moves downward, thereby smoothly driving the first roller 5002 and the second conductive block 6002 to rotate. This allows the second conductive block 6002 to smoothly and quickly contact the first conductive block 6001, thereby causing the displacement indicator light 800 to light up quickly, thus improving the downward detection effect of the traffic sign body 100.
[0032] Because the L-shaped support rod 3001 provides support for the displacement indicator light 800 on the back of the traffic sign body 100, and the displacement indicator light 800 is located above the traffic sign body 100, while the displacement detection component 500 is installed on the side wall of the L-shaped support rod 3001, the first elastic element 5006 included in the displacement detection component 500 continuously applies a supporting force deviating from the gantry frame 200 to the traffic sign body 100 through the first U-shaped plate 5003 and the first roller 5002. This causes an imbalance in the force on the traffic sign body 100, thereby affecting the stability of the traffic sign body 100. Based on this, please refer to... Figure 2 In one embodiment, a balance support assembly 700 is provided below the gantry frame 200, the balance support assembly 700 providing support from below the gantry frame 200 to the back of the traffic sign body 100 to maintain the stability of the traffic sign body 100.
[0033] For details, please refer to Figure 6 In one embodiment, a support rod 4003 is fixedly disposed at the bottom of the lower arc-shaped clamping plate 4002. The balance support assembly 700 includes a second roller 7002, a second U-shaped plate 7003, a second rotating shaft 7004, a second telescopic rod 7005, a second elastic element 7006, and a second telescopic column 7007. The second telescopic column 7007 is fixedly installed on the side wall of the support rod 4003 facing the traffic sign body 100. One end of the second telescopic rod 7005 extends into the interior of the second telescopic column 7007 and is connected to the second telescopic column 7007. The second roller 7002 is located inside the second U-shaped plate 7003 and rotates with the second U-shaped plate 7003 via the second pivot 7004. One end of the second elastic element 7006 is connected to the second telescopic column 7007, and the other end is connected to the second U-shaped plate 7003, providing elastic support for the second U-shaped plate 7003, so that the second roller 7002 contacts the back of the traffic sign body 100.
[0034] After the upper arc-shaped clamping plate 4001 and the lower arc-shaped clamping plate 4002 are clamped onto the portal frame 200, the second elastic element 7006 provides elastic support force to the second U-shaped plate 7003, causing the second roller 7002 to contact the back of the traffic sign body 100. At this time, the first roller 5002 and the second roller 7002 act on the back of the traffic sign body 100 from the upper and lower sides of the portal frame 200, respectively, thereby balancing the forces on the traffic sign body 100 and improving the stability of the traffic sign body 100; when the traffic sign body When the traffic sign 100 is loosened and moved downwards due to strong winds, the downward-moving traffic sign body 100 causes the first roller 5002 and the second roller 7002 to rotate adaptively through friction with them. When the first roller 5002 rotates, it causes the second conductive block 6002 to rotate, so that the second conductive block 6002 comes into contact with the first conductive block 6001, thereby connecting the built-in power supply of the power box 300 to the displacement indicator light 800, causing the displacement indicator light 800 to light up to remind the driver.
[0035] Please continue reading. Figure 6 In one embodiment, a second annular rubber ring 7001 is provided on the circumferential sidewall of the second roller 7002, which contacts the back of the traffic sign body 100. By providing the second annular rubber ring 7001, the friction force applied by the traffic sign body 100 to the second roller 7002 can be increased when the traffic sign body 100 moves down, thereby smoothly driving the second roller 7002 to rotate.
[0036] In one embodiment, the first elastic element 5006 and the second elastic element 7006 can be springs or metal sheets, and there is no limitation here.
[0037] The working principle of this invention is as follows: The power supply box 300, L-shaped bracket rod 3001, and displacement indicator light 800 are fixed to the gantry frame 200 by the upper arc-shaped clamp 4001, the lower arc-shaped clamp 4002, and bolts. The L-shaped bracket rod 3001 supports the displacement indicator light 800 above the traffic sign body 100. The first elastic element 5006 supports the first roller 5002 on the back of the traffic sign body 100. When the traffic sign body 100 is loosened and moves downward due to strong wind, the first roller 5002 is subjected to friction from the traffic sign body 100 compared to the first roller 5002. A U-shaped plate 5003 rotates, which in turn drives the second conductive block 6002 to rotate. When the second conductive block 6002 rotates, it comes into contact with the first conductive block 6001. At this time, the built-in power supply of the power box 300 supplies power to the displacement indicator light 800 through the first conductive block 6001, the second conductive block 6002, and the three sets of conductive wires, causing the displacement indicator light 800 to light up. The driver can conclude from the lighting signal of the displacement indicator light 800 that the traffic sign body 100 has moved down, thereby driving cautiously and avoiding unnecessary property damage.
[0038] In this embodiment of the invention, the power supply box 300, the displacement detection component 500, and the displacement indicator light 800 are mounted on the gantry frame 200 by the clamping component 400. When the traffic sign body 100 loosens and moves downward due to long-term wind exposure, the displacement detection component 500 detects the downward movement of the traffic sign body 100. The conductive component 600 connects the built-in power supply of the power supply box 300 to the displacement indicator light 800. The built-in power supply of the power supply box 300 supplies power to the displacement indicator light 800, causing the displacement indicator light 800 to light up. The driver can then use the lighting signal of the displacement indicator light 800 to determine the location of the traffic sign. The traffic sign body 100 is lowered so that drivers can adjust their vehicles to avoid being directly below it, preventing the lowered suspension height from causing scratches. Compared to existing technologies, this new technology can automatically determine the suspension position of the traffic sign body 100. When the traffic sign body 100 becomes loose and lowered due to prolonged exposure to strong winds, it can automatically alert drivers, preventing the lowered traffic sign body 100 from scratching vehicles and causing property damage, thus improving the safety of driving vehicles and traffic sign bodies.
[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.
[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity, and those skilled in the art should consider the specification as a whole.
Claims
1. A device for determining the hanging position of a traffic sign, characterized in that, It includes a traffic sign body (100), a gantry frame (200), a power supply box (300), a clamping assembly (400), a displacement detection assembly (500), a conductive assembly (600), and a displacement indicator light (800). The traffic sign body (100) is fixedly installed on one side of the gantry frame (200). The power supply housing (300), the displacement detection component (500), and the displacement indicator light (800) are mounted on the gantry frame (200) via the clamping component (400). The power supply housing 300 contains a power source. The displacement indicator light (800) is located above the traffic sign body (100), and the conductive component (600) is disposed on one side of the displacement detection component (500). The displacement detection component (500) contacts the back of the traffic sign body (100) and is used to detect the downward movement of the traffic sign body (100). When the displacement detection component (500) detects that the traffic sign body (100) has moved downward, the conductive component (600) connects the built-in power supply of the power supply box (300) with the displacement indicator light (800). The built-in power supply of the power supply box (300) supplies power to the displacement indicator light (800), causing the displacement indicator light (800) to light up.
2. The traffic sign hanging position measuring device according to claim 1, characterized in that, The clamping assembly (400) includes an upper arc-shaped clamping plate (4001) and a lower arc-shaped clamping plate (4002). The upper arc-shaped clamp (4001) and the lower arc-shaped clamp (4002) are hinged at one end and connected at the other end by bolts. The power supply box (300) is fixedly installed on the upper part of the upper arc-shaped clamp (4001).
3. The traffic sign hanging position measuring device according to claim 1, characterized in that, An L-shaped support rod (3001) is fixedly installed on the upper part of the power supply box (300). The end of the L-shaped support rod (3001) away from the power supply box (300) extends to the top of the traffic sign body (100) and is connected to the displacement indicator light (800).
4. The traffic sign hanging position measuring device according to claim 3, characterized in that, The displacement detection assembly (500) includes a first roller (5002), a first U-shaped plate (5003), a first rotating shaft (5004), a first telescopic rod (5005), a first elastic element (5006), and a first telescopic cylinder (5007). The first telescopic column (5007) is fixedly installed on the side wall of the L-shaped support rod (3001) facing the traffic sign body (100). One end of the first telescopic rod (5005) extends into the first telescopic column (5007) and telescopically engages with the first telescopic column (5007), while the other end extends into the outside of the first telescopic column (5007) and is fixedly connected to the first U-shaped plate (5003). The first roller (5002) is disposed inside the first U-shaped plate (5003) and rotates with the first U-shaped plate (5003) through the first rotating shaft (5004). One end of the first elastic member (5006) is connected to the first telescopic column (5007), and the other end is connected to the first U-shaped plate (5003), which is used to provide elastic support for the first U-shaped plate (5003) so that the first roller (5002) contacts the back of the traffic sign body (100).
5. The traffic sign hanging position measuring device according to claim 4, characterized in that, The conductive component (600) includes a first conductive block (6001), a second conductive block (6002), a first conductive wire (6003), a second conductive wire (6004), and a third conductive wire (6005). The first conductive block (6001) is fixedly mounted on the inner wall of the first U-shaped plate (5003), and the second conductive block (6002) is fixedly mounted on the circumferential side wall of the first roller (5002). The positive terminal of the built-in power supply of the power supply box (300) is connected to the second conductive block (6002) through the first conductive line (6003). The negative terminal of the built-in power supply of the power supply box (300) is connected to the displacement indicator light (800) through the third conductive line (6005). The first conductive block (6001) and the displacement indicator light (800) are connected through the second conductive line (6004).
6. The traffic sign hanging position measuring device according to claim 5, characterized in that, The first telescopic rod (5005) and the L-shaped support rod (3001) are hollow inside, and part of the second conductive wire (6004) and the third conductive wire (6005) are arranged in the inner cavity of the first telescopic rod (5005), the first telescopic column (5007) and the L-shaped support rod (3001).
7. The traffic sign hanging position measuring device according to claim 4, characterized in that, The first roller (5002) has a first annular rubber ring (5001) on its circumferential sidewall that contacts the back of the traffic sign body (100).
8. A traffic sign hanging position measuring device according to claim 2, characterized in that, A balance support assembly (700) is provided below the gantry frame (200), and the balance support assembly (700) provides support for the back of the traffic sign body (100) from below the gantry frame (200).
9. A traffic sign hanging position measuring device according to claim 8, characterized in that, A support rod (4003) is fixedly installed at the bottom of the lower arc-shaped clamp (4002). The balance support assembly (700) includes a second roller (7002), a second U-shaped plate (7003), a second rotating shaft (7004), a second telescopic rod (7005), a second elastic element (7006), and a second telescopic column (7007). The second telescopic column (7007) is fixedly installed on the side wall of the support rod (4003) facing the traffic sign body (100). One end of the second telescopic rod (7005) extends into the interior of the second telescopic column (7007) and telescopically engages with the second telescopic column (7007), while the other end extends into the exterior of the second telescopic column (7007) and is fixedly connected to the second U-shaped plate (7003). The second roller (7002) is disposed inside the second U-shaped plate (7003) and rotates with the second U-shaped plate (7003) through the second pivot (7004). One end of the second elastic member (7006) is connected to the second telescopic column (7007), and the other end is connected to the second U-shaped plate (7003), which provides elastic support for the second U-shaped plate (7003) so that the second roller (7002) contacts the back of the traffic sign body (100).
10. A traffic sign hanging position measuring device according to claim 9, characterized in that, The second roller (7002) has a second annular rubber ring (7001) on its circumferential sidewall that contacts the back of the traffic sign body (100).