High-precision intersection twin construction device
Patent Information
- Application Number
- CN202522521104.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-11-27
AI Technical Summary
[0004]本实用新型的目的在于提供一种高精度路口孪生体构建装置，以解决上述背景技术提出的目前路口孪生体构建装置因传感器分散安装导致迎风面积大、易受风载荷影响而产生振动或形变，进而造成空间姿态偏移、影响建模精度与长期稳定性的问题
[0011]与现有技术相比，本实用新型的有益效果是：该高精度路口孪生体构建装置能够显著减小迎风面积，提升抗风稳定性，确保传感器在长期运行中保持精确的空间姿态，保障路口孪生体建模的几何精度和数据一致性。该装置通过由安装基盘、复合支撑芯柱、弧形主肋梁与顶部环梁构成的流线型封闭桁架结构，结合交叉分布的弹性撑杆、横向蜂窝状连接板及柔性蒙皮的整体协同设计，有效分散风载荷、抑制振动与形变，从根本上避免了传统多支架外挂式结构因迎风面大而导致的姿态漂移问题。
Smart Images
Figure CN224786784U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of traffic management technology, specifically a high-precision intersection twin construction device. Background Technology
[0002] With the rapid development of cities and the continuous increase in the number of vehicles, the requirements for urban traffic management and planning are becoming increasingly stringent. To improve traffic efficiency, reduce traffic accidents, and optimize resource allocation, digital twin technology is widely used in transportation systems. By establishing high-precision intersection twins, accurate simulation and dynamic prediction of the actual intersection's operational status can be achieved, providing a scientific basis for traffic management and decision-making.
[0003] Currently, the design of intersection twin construction devices typically uses multiple independent brackets to fix sensors such as LiDAR and cameras. This distributed layout causes each sensor component to protrude outwards, significantly increasing the overall windward area. Especially under strong wind or typhoon conditions, the larger windward area causes the device to bear higher wind loads, which can easily cause slight vibrations or even slow deformation of the brackets. Even if the sensor positions are precisely calibrated during initial installation, long-term exposure to wind forces may cause the spatial orientation of the sensors to shift, resulting in geometric drift of the collected data. This not only affects the construction accuracy of the intersection twin model but also reduces its long-term stability. Utility Model Content
[0004] The purpose of this invention is to provide a high-precision intersection twin construction device to solve the problems mentioned in the background art, such as the large windward area caused by the dispersed installation of sensors in current intersection twin construction devices, which are susceptible to vibration or deformation due to wind loads, thus causing spatial attitude deviation and affecting modeling accuracy and long-term stability.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-precision intersection twin construction device, including a mounting base, on which a composite support core column is provided. Several sets of evenly distributed arc-shaped main rib beams are connected to the outer periphery of the composite support core column. The top end of the arc-shaped main rib beam is fixed to a top ring beam. The bottom end of the arc-shaped main rib beam is connected to the mounting base through a hinge seat. Elastic struts are provided between adjacent arc-shaped main rib beams. A transverse honeycomb connecting plate is also provided between the arc-shaped main rib beams. The outer surface of the structure formed by the outer periphery of the top ring beam and the arc-shaped main rib beams is covered with a flexible skin.
[0006] Preferably, the composite support core column includes a central rigid tube and an elastic sleeve sleeved thereon, with the upper and lower ends of the elastic sleeve abutting against the top ring beam and the mounting base plate, respectively.
[0007] Preferably, the elastic strut is formed by two highly elastic alloy wire ropes intersecting to form an X-shaped structure, with its two ends anchored to the upper and lower connecting lugs of adjacent arc-shaped main rib beams, respectively.
[0008] Preferably, the bottom of the mounting base is provided with an annular counterweight cavity, which is filled with high-density particles and sealed by a sealing cap.
[0009] Preferably, the central rigid tube extends upward along the axial direction and is provided with an inclined guide shaft, and the inner edge of the transverse honeycomb connecting plate is provided with a guide sleeve. The guide sleeve is fitted around the outer periphery of the inclined guide shaft and can slide along its axial direction. An annular buffer is provided between the guide sleeve and the transverse honeycomb connecting plate.
[0010] Preferably, the edge of the flexible skin is embedded in the annular groove on the outer side of the arc-shaped main rib beam and the top ring beam, and is locked by an elastic pressure ring.
[0011] Compared with existing technologies, the beneficial effects of this invention are: the high-precision intersection twin construction device can significantly reduce the windward area, improve wind resistance stability, ensure that the sensor maintains accurate spatial attitude during long-term operation, and guarantee the geometric accuracy and data consistency of intersection twin modeling. This device, through a streamlined closed truss structure composed of a mounting base, composite support core column, arc-shaped main rib beam, and top ring beam, combined with the overall coordinated design of cross-distributed elastic struts, transverse honeycomb connecting plates, and flexible skin, effectively disperses wind loads, suppresses vibration and deformation, and fundamentally avoids the attitude drift problem caused by the large windward area of traditional multi-support external structures. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of a high-precision intersection twin construction device according to the present invention; Figure 2 This is a schematic diagram of the top structure of the mounting base of a high-precision intersection twin construction device according to this utility model; Figure 3 This is a schematic diagram of the overall external structure of a high-precision intersection twin construction device according to this utility model.
[0013] In the diagram: 1. Mounting base plate; 2. Composite support core column; 21. Central rigid tube; 22. Elastic sleeve; 23. Inclined guide shaft; 24. Annular buffer; 3. Arc-shaped main rib beam; 4. Top ring beam; 5. Hinge seat; 6. Elastic strut; 7. Transverse honeycomb connecting plate; 71. Guide sleeve; 8. Flexible skin; 81. Elastic pressure ring; 11. Annular counterweight cavity; 12. Sealing cover. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] Please see Figure 1-3This utility model provides a technical solution: a high-precision intersection twin construction device, including a mounting base 1, a composite support core column 2 on the mounting base 1, a central rigid tube 21 at the bottom of which is fastened to the mounting base 1 by M16 high-strength bolts through a flange, a 2mm thick fluororubber vibration damping pad between the flange contact surfaces, several sets of evenly distributed arc-shaped main rib beams 3 connected to the outer periphery of the composite support core column 2, the top of the arc-shaped main rib beams 3 being fixed to a top ring beam 4, the bottom of the arc-shaped main rib beams 3 being connected to the mounting base 1 through a hinge seat 5, and elastic struts 6 distributed crosswise between adjacent arc-shaped main rib beams 3, and transverse honeycomb connecting plates 7 between the arc-shaped main rib beams 3, and the outer periphery of the top ring beam 4 and the arc-shaped main rib beams 3 together forming a structural outer surface. Covered with a flexible skin 8, all sensors are embedded in an internal space enclosed by an arc-shaped main rib beam 3, a top ring beam 4, and a transverse honeycomb connecting plate 7. The mounting base 1 is fixed to the top of the intersection pole as the overall support foundation, with a composite support core column 2 standing vertically on it as the core load-bearing bracket. Several evenly distributed arc-shaped main rib beams 3 are connected to the mounting base 1 via hinged seats 5 at their bottom ends, allowing for slight swaying. Their top ends are rigidly fixed to the top ring beam 4, thus forming a closed, spindle-shaped spatial frame together with the top ring beam 4. Adjacent arc-shaped main rib beams 3 are connected by intersecting elastic struts 6 to form an X-shaped tension network, automatically adjusting internal forces under wind load to suppress relative displacement between the rib beams. Simultaneously, the transverse honeycomb connecting plate 7 provides support at multiple heights. The upper arc-shaped main rib beams 3 are horizontally connected to form a whole, enhancing the overall torsional stiffness. The streamlined outer contour surface, formed by the arc-shaped main rib beams 3 and the top ring beam 4, is tightly covered by a flexible skin 8, giving the device a low-drag shape. This ensures that the structure experiences uniform stress and minimal deformation in strong winds, effectively preventing sensor mounting reference drift caused by vibration or slow plastic deformation. This significantly reduces the windward area and improves wind resistance stability, ensuring that the sensing equipment mounted on its internal rigid platform maintains accurate spatial attitude during long-term operation. This solves the technical problems in existing technologies where distributed protruding supports result in a large windward area, susceptibility to wind load interference leading to geometric instability, and impact on the accuracy and long-term consistency of intersection twin modeling. The core column 2 includes a central rigid tube 21 and an elastic sleeve 22 sleeved around it. The upper and lower end faces of the elastic sleeve 22 are respectively embedded in the annular limiting grooves of the top ring beam 4 and the mounting base 1, and a constant axial preload is achieved through a preloaded disc spring assembly to ensure controllable buffer stroke. In this structure, the central rigid tube 21 provides the vertical main load-bearing path, and the elastic sleeve 22 forms an axial elastic buffer layer between the top ring beam 4 and the mounting base 1. It can absorb vibration energy and limit rigid transmission in the small displacement caused by wind load or temperature changes, thereby reducing stress concentration and residual deformation of the overall structure and improving the geometric stability of the device during long-term operation. The elastic strut 6 is formed by two high-elasticity alloy wire ropes connected in an X-shape, and the end of the elastic strut 6 adopts a wedge-shaped clamping anchor.High-elasticity alloy wire ropes are permanently anchored to the connecting lugs of the arc-shaped main rib beam 3 using a hydraulic pressing process. This structure forms a bidirectional tension constraint between adjacent arc-shaped main rib beams 3 through X-shaped elastic struts 6. When wind loads cause the rib beams to sway, the high-elasticity alloy wire ropes undergo tensile deformation and provide restoring force, effectively suppressing the relative displacement and torsional vibration of the arc-shaped main rib beams 3, and enhancing the lateral stiffness and dynamic stability of the overall truss. The bottom of the mounting base 1 is provided with an annular counterweight cavity 11, which is surrounded by an annular wall extending downward from the mounting base 1. The sealing cover 12 is secured by internal hexagonal bolts. The nails are evenly distributed and locked around the circumference, and anaerobic sealant is applied to the joint surface to prevent rainwater from seeping in and causing the counterweight particles to clump. The annular counterweight cavity 11 is filled with high-density particles and sealed by the sealing cap 12. This structure lowers the overall center of gravity of the device through the gravity of the high-density particles in the annular counterweight cavity 11, enhancing the anti-overturning ability. At the same time, the sealing cap 12 ensures that the filling material is stable and leak-free in the long term, effectively improving the static stability and installation reliability of the device under strong wind or typhoon conditions. The central rigid tube 21 extends axially upward and is provided with an inclined guide shaft 23. The inclined guide shaft 23 and the central rigid tube 21 The structure is integrally forged, and the inner edge of the transverse honeycomb connecting plate 7 is provided with a guide sleeve 71. The guide sleeve 71 is fitted onto the outer periphery of the inclined guide shaft 23 and can slide along its axial direction. An annular buffer 24 is provided between the guide sleeve 71 and the transverse honeycomb connecting plate 7. This structure, in cooperation with the inclined guide shaft 23 and the guide sleeve 71, forms a pre-biased sliding guide mechanism, allowing the transverse honeycomb connecting plate 7 to generate a slight adaptive displacement along the inclined axis under wind load. The annular buffer 24 simultaneously absorbs the sliding impact and provides a restoring elastic force, thereby effectively dissipating vibration energy and preventing structural rigidity. The locking mechanism ensures the stability of the geometric reference and repeatability of the device under long-term dynamic loads. The flexible skin 8 is embedded in the annular grooves on the outer side of the arc-shaped main rib beam 3 and the top ring beam 4, and locked in place by the elastic pressure ring 81. This structure, with the flexible skin 8 embedded in the annular grooves on the outer side of the arc-shaped main rib beam 3 and the top ring beam 4 and pressed and sealed by the elastic pressure ring 81, forms a continuous, smooth, streamlined outer surface, effectively reducing the drag coefficient and preventing skin flutter or loosening due to external airflow disturbances. This ensures that the device maintains its aerodynamic integrity and structural sealing in long-term outdoor environments.
[0016] Working principle: When using this high-precision intersection twin construction device, the mounting base 1 is first fixed to the top of the intersection pole with fasteners. Then, the composite support core column 2 is erected on the mounting base 1. Several sets of arc-shaped main rib beams 3 are connected to the mounting base 1 at their bottom ends through hinge seats 5 and fixed to the top ring beam 4 at their top ends, forming a closed spindle-shaped skeleton. Adjacent arc-shaped main rib beams 3 are anchored to their respective upper and lower connecting ears through elastic struts 6 to form an X-shaped cross structure. The transverse honeycomb connecting plate 7 is fitted onto the central rigid through the guide sleeve 71 on its inner edge. The inclined guide shaft 23 extends from the sex tube 21, and an annular buffer 24 is placed between the guide sleeve 71 and the transverse honeycomb connecting plate 7. The upper and lower ends of the elastic sleeve 22 outside the composite support core column 2 abut against the top ring beam 4 and the mounting base plate 1, respectively. The annular counterweight cavity 11 at the bottom of the mounting base plate 1 is filled with high-density particles and then sealed by the sealing cover 12. Finally, the flexible skin 8 is covered on the entire outer surface of the bracket, so that its edge is embedded in the annular groove on the outside of the arc-shaped main rib beam 3 and the top ring beam 4, and locked with the elastic pressure ring 81, thereby completing a series of operations.
[0017] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A high-precision intersection twin construction device, comprising a mounting base (1), characterized in that: The mounting base (1) is provided with a composite support core column (2). The composite support core column (2) is connected to a number of evenly distributed arc-shaped main rib beams (3) on its outer periphery. The top of the arc-shaped main rib beams (3) is fixed to the top ring beam (4). The bottom of the arc-shaped main rib beams (3) is connected to the mounting base (1) through a hinge seat (5). The arc-shaped main rib beams (3) are provided with cross-distributed elastic struts (6) between adjacent arc-shaped main rib beams (3). The arc-shaped main rib beams (3) are also provided with transverse honeycomb connecting plates (7). The outer surface of the structure formed by the outer periphery of the top ring beam (4) and the arc-shaped main rib beams (3) is covered with a flexible skin (8).
2. The high-precision intersection twin construction device according to claim 1, characterized in that: The composite support core column (2) includes a central rigid tube (21) and an elastic sleeve (22) sleeved on the outside. The upper and lower ends of the elastic sleeve (22) abut against the top ring beam (4) and the mounting base plate (1), respectively.
3. The high-precision intersection twin construction device according to claim 1, characterized in that: The elastic strut (6) is formed by two highly elastic alloy wire ropes that are cross-connected to form an X-shaped structure. Its two ends are respectively anchored to the upper and lower connecting ears of the adjacent arc-shaped main rib beam (3).
4. The high-precision intersection twin construction device according to claim 1, characterized in that: The mounting base (1) has an annular counterweight cavity (11) at the bottom, which is filled with high-density particles and sealed by a sealing cover (12).
5. A high-precision intersection twin construction device according to claim 2, characterized in that: The central rigid tube (21) extends upward along the axial direction and is provided with an inclined guide shaft (23), and the inner edge of the transverse honeycomb connecting plate (7) is provided with a guide sleeve (71). The guide sleeve (71) is fitted around the outer periphery of the inclined guide shaft (23) and can slide along its axial direction. An annular buffer (24) is provided between the guide sleeve (71) and the transverse honeycomb connecting plate (7).
6. The high-precision intersection twin construction device according to claim 1, characterized in that: The edge of the flexible skin (8) is embedded in the annular groove on the outside of the arc-shaped main rib (3) and the top ring beam (4), and is locked by the elastic pressure ring (81).