Structural-steel-based chord-type dual-truss-beam supporting apparatus having feedback function

Abstract

The present invention relates to the technical field of supporting apparatuses. Disclosed is a structural-steel-based chord-type dual-truss-beam supporting apparatus having a feedback function. The supporting apparatus comprises main supporting mechanisms, long-span beam mechanisms, tensioned chord mechanisms, servo mechanisms, angular supporting mechanisms, monitoring mechanisms, and a foundation pit; the main supporting mechanisms are secured and connected to the long-span beam mechanisms; the tensioned chord mechanisms are secured and connected to the long-span beam mechanisms; the servo mechanisms are in transmission connection with the tensioned chord mechanisms; the monitoring mechanisms are respectively electrically connected to the servo mechanisms; the main supporting mechanisms, the long-span beam mechanisms, the servo mechanisms, and the angular supporting mechanisms are all secured and connected to the foundation pit. The tension of cables is adjusted by means of corresponding chord tensioning motors and transmitted to long-span beams, the positions of the beams are adjusted by means of corresponding sliding saddle, and the servo mechanisms adjust transverse and longitudinal hydraulic cylinders on the basis of data, thereby ensuring the stability of the supporting apparatus.

Description

A chord-type double-truss support device with feedback function based on structural steel Technical Field

[0001] This invention relates to the field of support device technology, specifically a chord-type double truss support device based on structural steel with feedback function. Background Technology

[0002] With the acceleration of urbanization and the continuous development of construction, foundation pit support technology has become an indispensable part of modern civil engineering. Foundation pit support devices are mainly used during the construction phase of underground structures to support and protect the soil surrounding the foundation pit, preventing collapse or deformation, thereby ensuring construction safety and the stability of the surrounding environment. As urban construction increasingly expands into underground spaces, foundation pit support technology is also constantly evolving, moving towards higher efficiency, energy conservation, and environmental protection.

[0003] Currently, the existing technologies for foundation pit support mostly use steel pipes as the main support, with only one set of tensioned beams, anchor ends, and steel walers. These are combined with truss-type supports to drive or drive into the soil layer to form a waterproof wall, which plays a supporting and isolation role and prevents the collapse of the soil.

[0004] Although existing technologies can meet the needs of foundation pit support to a certain extent, they lack adjustment capabilities and precise adjustment of large-span beams, resulting in instability. Furthermore, they lack seismic resistance and resistance to sudden impacts. Therefore, those skilled in the art have provided a chord-type double truss beam support device based on structural steel with feedback function to solve the problems mentioned in the background. Summary of the Invention

[0005] The purpose of this invention is to provide a chord-type double truss support device with feedback function based on structural steel, so as to solve the problems raised in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The support device includes a main support mechanism, a large-span beam mechanism, a tensioning mechanism, a servo mechanism, a corner support mechanism, a detection mechanism, and a foundation pit. The main support mechanism and the large-span beam mechanism are fastened together, the tensioning mechanism and the large-span beam mechanism are fastened together, the servo mechanism and the tensioning mechanism are driven together, and the detection mechanism and the servo mechanism are electrically connected. The main support mechanism, the large-span beam mechanism, the servo mechanism, and the corner support mechanism are all fastened together to the foundation pit.

[0008] By adopting the above technical solution, the tension of the cables is adjusted by a tensioning motor and transmitted to the main span beam, while the beam position is adjusted by a sliding saddle. Simultaneously, the servo mechanism adjusts the longitudinal and transverse hydraulic cylinders based on real-time data from pressure and level sensors to ensure the stability of the support device. The buffer assembly effectively reduces the impact of external vibrations, improving the system's seismic resistance. This allows the support device to maintain precise support and adjustment under different working conditions, enabling it to operate efficiently and stably under various environmental and load conditions, ensuring the stability and safety of the main span beam. Furthermore, precise tension adjustment and real-time monitoring guarantee the system's long-term operation and seismic performance, providing excellent load capacity and adjustment response speed.

[0009] Furthermore, the main support mechanism includes an H-shaped steel frame, an internal strut assembly, a support frame, a connecting plate, and jacks. The H-shaped steel frame and the internal strut assembly are fastened together, the H-shaped steel frame and the connecting plate are fastened together, and both ends of the H-shaped steel frame are fastened together to the foundation pit. The support frame is located on both sides of the H-shaped steel frame and is fastened together to the foundation pit. The jacks are fastened together to the H-shaped steel frame and are located at both ends of the H-shaped steel frame.

[0010] By adopting the above technical solution, the H-shaped steel frame serves as the skeleton of the support device, forming a stable support structure through tight connections with the internal strut assembly. Both ends of the H-shaped steel frame are securely connected to the foundation pit, ensuring the stability and anti-overturning capability of the entire support device within the pit. The internal strut assembly, through its tight connection with the H-shaped steel frame, forms lateral and longitudinal support forces, ensuring the strength and stability of the structure. Support frames located on both sides of the H-shaped steel frame are secured to the foundation pit via connecting plates, providing additional support force and enhancing the overall structural stability. Jacks located at both ends of the H-shaped steel frame are securely connected to it, providing adjustable support force via hydraulic means, allowing for lifting and lowering adjustments according to load requirements. In the workflow, the jacks first adjust the height of the H-shaped steel frame through the hydraulic system, thereby adjusting the stability of the entire support device. The support frame and internal strut assembly provide support force through tight connections, while the tight connection between the H-shaped steel frame and the foundation pit ensures the fixation and anti-lateral displacement of the device. Under load, the jacks provide the necessary adjustment force, allowing the H-beam frame and the entire support system to be flexibly adjusted according to different working conditions, ensuring the system can withstand the load in a stable state. The hydraulic jacks precisely control the lifting and lowering of the H-beam frame, adjusting the height of the system. Simultaneously, the structural design of the support frame and internal strut assembly provides stable support, ensuring the system's load does not cause tilting or displacement. The stability and adjustability of the entire main support structure are achieved through the close cooperation of the H-beam frame, support frame, jacks, and internal strut assembly. This main support mechanism can provide stable support through precise hydraulic adjustment under different loads and environmental conditions, enhancing the overall load-bearing capacity of the structure. It can also be height-adjusted as needed, ensuring the dynamic adaptability and stability of the support system and preventing support instability due to load changes.

[0011] Furthermore, the internal strut assembly includes a scissor brace, a hinged brace, a rotating rod, a compression rod, a connecting plate, a sliding block, a first elastic element, and a second elastic element. The hinged brace and the sliding block are hinged together, the sliding block and the support frame are slidably connected, the sliding block and the first elastic element are fastened together, the first elastic element and the support frame are fastened together, the scissor brace and the H-shaped steel frame are hinged together, the rotating rod and the second elastic element are fastened together, the second elastic element and the compression rod are fastened together, the compression rod and the rotating rod are slidably connected, the compression rod and the support frame are rotatably connected, the support frame is provided with a sliding groove, the sliding block and the sliding groove are slidably connected, the connecting plate and the H-shaped steel frame are fastened together, and the scissor brace and the H-shaped steel frame are fastened together.

[0012] By adopting the above technical solution, the hinged strut and the sliding block are connected by a hinge, and the sliding block cooperates with the support frame through a sliding connection, allowing the inner strut assembly to generate a certain displacement under force. The sliding block is fastened to the first elastic element, and the first elastic element is fastened to the support frame to provide elastic support and maintain the stability of the support frame during the stress process. The scissor strut is connected to the H-shaped steel frame by a hinge, providing additional stabilizing force and making the entire main support structure more robust. The rotating rod is fastened to the second elastic element to control the rotation torque and ensure the smoothness of the inner strut assembly during deformation. The second elastic element is fastened to the compression rod to provide appropriate compressive force and ensure the stability of the structure under compression. The compression rod and the rotating rod are slidably connected to form a combined rotation and compression action to achieve flexible force adjustment. The compression rod is rotatably connected to the support frame to ensure that the support frame can make appropriate adjustments under force. The support frame is provided with a sliding groove, and the sliding block is slidably connected to the sliding groove to further ensure the stability and flexibility of the inner strut assembly. The connecting plate, securely connected to the H-shaped steel frame, increases the connection strength between the internal strut assembly and the H-shaped steel frame. The scissor braces, also securely connected to the H-shaped steel frame, enhance the overall rigidity and stability of the structure. When a load is applied to the support device, the scissor braces and hinged braces work together, adjusting the shape of the internal strut assembly through the hinge points to transfer the force to the H-shaped steel frame. Simultaneously, the sliding block in the sliding groove enables fine-tuning, and the elastic action of the first elastic element stabilizes the structure. The rotating rod, in conjunction with the second elastic element, adjusts the torque, ensuring the support frame remains stable during compression and rotation. The sliding connection between the compression rod and the rotating rod ensures the adaptability and flexibility of the structure under complex loads. Ultimately, the entire internal strut assembly, securely connected to the H-shaped steel frame via the connecting plate, forms a robust and flexible support system. Through the coordinated action of the various components within the internal strut assembly, stability and adaptability are achieved under different load conditions. The cooperation between the sliding block and the sliding groove allows for fine-tuning of the support frame, while the first and second elastic elements provide necessary elastic support to maintain stability under different forces. The combination of the rotating rod and the compression rod enables the internal strut assembly to flexibly cope with compressive and rotational forces, thereby ensuring the reliability of the entire support device. This internal strut assembly can stably support under dynamic loads and adapt to different deformation requirements. The design of the elastic elements and sliding connections allows for flexible adjustment, ensuring the stability, load-bearing capacity, and seismic performance of the structure. This enables the entire support device to operate continuously and effectively in complex working environments, ensuring high precision and high reliability.

[0013] Furthermore, the H-shaped steel frame includes an end steel frame, a middle steel frame, and a telescopic hydraulic cylinder. The end steel frame and the middle steel frame are slidably connected, the telescopic hydraulic cylinder and the middle steel frame are fastened together, and the telescopic hydraulic cylinder and the end steel frame are driven together.

[0014] By adopting the above technical solution, the end steel frame and the middle steel frame are connected by a sliding connection. This design allows them to slide relative to each other, thus allowing the structure to make necessary displacements or adjustments under stress. The telescopic hydraulic cylinder is connected to the middle steel frame via a fastening connection and simultaneously to the end steel frame via a transmission connection. This hydraulic cylinder configuration allows for precise longitudinal adjustment of the end steel frame on the middle steel frame. Specifically, the hydraulic cylinder can control the lifting and lowering of the end steel frame, adjusting the height and stability of the entire H-shaped steel frame, thereby achieving dynamic adjustment of the support device. In the working process, when it is necessary to adjust the height or position of the support device, the telescopic hydraulic cylinder, driven by hydraulic pressure, pushes the end steel frame to slide on the middle steel frame, thereby achieving vertical lifting or other necessary adjustments to the overall structure. Due to the sliding connection between the end steel frame and the middle steel frame, the force provided by the hydraulic cylinder acts directly on the end steel frame, achieving smooth height adjustment through the sliding mechanism. The control of the hydraulic system enables the entire H-shaped steel frame to flexibly respond to and maintain the balance and stability of the structure when subjected to external loads. The telescopic hydraulic cylinder utilizes the pressurization capacity of the hydraulic system to transmit force to the end steel frame via a transmission connection, causing it to slide on the middle steel frame. The telescopic movement of the hydraulic cylinder precisely controls the positional changes of the end steel frame, ensuring uniform force distribution and stability during adjustment. Due to the sliding connection design, the relative displacement between the end and middle steel frames can proceed smoothly, avoiding structural damage caused by excessive friction or jamming. Utilizing the adjustment function of the telescopic hydraulic cylinder, the support device can flexibly adjust its height or position when the load changes, ensuring the stability and adaptability of the support system. This design improves the flexibility and seismic resistance of the support structure, enabling stable operation under various working conditions and ensuring the system's high efficiency and reliability.

[0015] Furthermore, the large-span beam mechanism includes a sliding saddle, a buffer assembly, a tie rod, a cable, a fork lug, a web member, and a wedge seat. The sliding saddle has three hinge holes. The buffer assembly is fastened to the sliding saddle, the tie rod is hinged to the sliding saddle, the cable is tensioned by contact with the sliding saddle, the cable is fastened to the wedge seat, the tie rod is hinged to the wedge seat, the fork lug is fastened to the web member, the fork lug is hinged to the sliding saddle, the web member is fastened to the servo mechanism, and the wedge seat is fastened to the servo mechanism.

[0016] By adopting the above technical solution, the sliding saddle has three hinge holes for connecting the tie rod, fork lug, and cable, respectively. The buffer assembly is securely connected to the sliding saddle, providing necessary buffering and vibration suppression functions to reduce the impact of external impacts on the large-span beam mechanism. The tie rod is hinged to the sliding saddle, allowing it to change angle with the saddle under force, transmitting force and adjusting position. Simultaneously, the cable contacts the sliding saddle for tension, transmitting the tension to the wedge seat and achieving stable fixation through a secure connection. The hinge between the tie rod and the wedge seat allows for flexible adjustment between them. The fork lug is securely connected to the web member, ensuring structural stability; the hinged design between the fork lug and the sliding saddle enables force transmission and adjustment. The web member is securely connected to the servo mechanism, working together to provide lateral stability. The wedge seat is securely connected to the servo mechanism, achieving precise control of the entire large-span beam mechanism through a hydraulic or electric adjustment controller. First, the cable transmits tension through the sliding saddle, ensuring uniform distribution of tension force in the large-span beam and further adjusting the beam's shape. The tie rod, articulated with the sliding saddle and wedge seat, bears the reaction force from the tension force. Simultaneously, the web member, connected to the sliding saddle via forks, collaboratively shares and stabilizes the structure. The buffer assembly functions during load changes, reducing external vibrations or impacts and protecting the large-span beam from damage caused by instantaneous high loads. Through servo mechanism control of the web member and wedge seat, dynamic adjustment of the beam under different loads can be achieved, ensuring stable operation of the device under various working conditions. The tension cable, through tension stretching, drives the sliding saddle to move, thereby adjusting the position of the large-span beam and transmitting the force to the wedge seat. The articulated connection between the tie rod and wedge seat makes force transmission more efficient, while the tight connection between the web member and servo mechanism makes the adjustment process more precise. During load changes, the buffer assembly absorbs part of the impact force to balance the instantaneous load, ensuring the entire large-span beam mechanism remains in a stable state. The achieved result is that, through the coordinated work of the above components, the large-span beam mechanism can guarantee the stability, flexibility, and efficient adjustment of the beam when subjected to complex loads. The effective combination of sliding saddle, buffer assembly and servo mechanism not only improves seismic resistance, but also precisely adjusts the tension and position of the large span beam, ensuring stable operation under long-term high load, extending the service life of the device and meeting the needs of various working conditions.

[0017] Furthermore, the buffer assembly includes a buffer plate, a non-Newtonian fluid tank, and a third elastic element. The non-Newtonian fluid tank is fastened to the sliding saddle, the buffer plate and the non-Newtonian fluid tank are slidably connected, the third elastic element and the non-Newtonian fluid tank are fastened to each other, and the third elastic element and the buffer plate are fastened to each other.

[0018] By adopting the above technical solution, the impact assembly consists of a buffer plate, a non-Newtonian fluid tank, and a third elastic element. It is designed to effectively mitigate external impact forces and vibrations, protecting the large-span beam mechanism from damage caused by instantaneous high loads. The non-Newtonian fluid tank is rigidly connected to the sliding saddle. As the core component of the buffer assembly, the non-Newtonian fluid can change its flow characteristics according to pressure changes. Therefore, when external impacts or vibrations are transmitted to the sliding saddle, the fluid in the non-Newtonian fluid tank can quickly adjust its flow state, effectively absorbing impact energy. The buffer plate is connected to the non-Newtonian fluid tank via a sliding connection, allowing for slight displacement between the buffer plate and the non-Newtonian fluid tank under external force, thereby enhancing impact absorption capacity. The third elastic element is rigidly connected to both the non-Newtonian fluid tank and the buffer plate, providing additional elastic support, further improving the buffering effect, and ensuring that the entire system can respond smoothly and return to its original position under stress. In operation, when external impact forces or vibrations act on the large-span beam mechanism, the buffer plate and the non-Newtonian fluid tank work together. The non-Newtonian fluid tank absorbs impact energy and alleviates instantaneous high loads through the fluid's flow characteristics, while the buffer plate displaces according to the magnitude of the impact, further reducing vibration transmission. The third elastic element provides buffering force under load through its elastic properties, ensuring the system can quickly return to its original position and operate stably after the impact. The entire buffer assembly effectively disperses external impact energy, reducing damage to the large-span beam structure. The working principle is that the fluid inside the non-Newtonian fluid tank has non-linear flow characteristics; when subjected to external pressure, the fluid viscosity increases, effectively slowing the transmission of external forces. The sliding connection between the buffer plate and the non-Newtonian fluid tank allows the buffer plate to move smoothly under fluid pressure, further absorbing and dispersing impact energy. The third elastic element acts as a restorer and elastic support, quickly restoring the system to its initial state after the external force is released, avoiding the continued impact of vibration on the device. The achieved effect is that, through the fluid characteristics of the non-Newtonian fluid tank and the synergistic effect of the buffer plate and the third elastic element, the buffer assembly can efficiently absorb and disperse external impacts and vibrations, greatly improving the impact resistance and stability of the large-span beam structure. Even under extreme working conditions, the entire support device can remain stable, preventing structural damage or positional displacement caused by impacts, thereby ensuring the long-term stable operation and reliability of the system.

[0019] Furthermore, the tensioning mechanism includes a tensioning motor, a winding block, and a tension sensor. The tensioning motor is fastened to the sliding saddle, the tensioning motor is driven to the winding block, the tension sensor is fastened to the winding block, and the winding block abuts against the cable.

[0020] By adopting the above technical solution, the tensioning mechanism consists of a tensioning motor, a winding block, and a tension sensor, aiming to precisely control and adjust the tension of the cable. The tensioning motor, connected to the sliding saddle via a fastening connection, serves as the drive source, electrically driving the winding block to rotate. The winding block, connected to the tensioning motor via a transmission connection, receives the motor's driving force and rotates to change the cable tension, ensuring precise control of the cable's tension. The tension sensor, fixed to the winding block via a fastening connection, monitors the cable tension in real time and transmits feedback signals to the control system, ensuring the tension remains within a predetermined range. The winding block contacts the cable and engages with it through tension; the cable's tension state is controlled by adjusting the winding block, ensuring system stability during operation. In the workflow, after the tensioning motor starts, it drives the winding block to rotate, generating the required tension in the cable. The rotation of the winding block tensions the cable, and the tension sensor monitors the cable tension in real time, feeding the data back to the control system. The control system adjusts the motor's operating speed based on the tension value fed back from the sensor, ensuring that the cable tension remains within the set range. Through this precise adjustment, the tensioning mechanism can adjust the tension in a timely manner according to actual load requirements, thus ensuring the stability of the large-span beam structure. The working principle is that the tensioning motor drives the winding block to rotate, changing the relative position between the winding block and the cable, thereby adjusting the cable tension. The tension sensor monitors the actual cable tension and converts it into an electrical signal, which is transmitted to the control system. The control system adjusts the motor's operating state in real time based on the feedback signal. Changes in the motor's speed directly affect the rotational rate of the winding block, thus precisely controlling the cable tension and ensuring smooth operation under load conditions. The achieved effect is that, through this precise adjustment mechanism, the tensioning mechanism can adjust the cable tension in real time under changing load conditions, ensuring the stability and safety of the structure. The feedback mechanism of the tension sensor allows the system to automatically adjust, ensuring that the tension remains within the ideal range, avoiding over-tensioning or slack, and improving the overall performance and reliability of the large-span beam structure.

[0021] Furthermore, the servo mechanism includes a longitudinal hydraulic cylinder, a transverse hydraulic cylinder, a locking assembly, and a mounting base. The longitudinal hydraulic cylinder and the locking assembly are connected by a drive mechanism, the web rod and the locking assembly are connected by a drive mechanism, the longitudinal hydraulic cylinder and the foundation pit are fastened together, the transverse hydraulic cylinder and the wedge seat are connected by a drive mechanism, and the transverse hydraulic cylinder and the mounting base are fastened together. The locking assembly includes a triangular block, a fourth elastic element, an electromagnetic block, an inner frame and an outer frame. The triangular block and the inner frame are slidably connected, the triangular block and the outer frame abut against each other, the triangular block and the fourth elastic element are fastened together, the triangular block and the outer frame abut against each other, the outer frame is provided with a locking groove, the outer frame and the web rod are fastened together, the inner frame and the longitudinal hydraulic cylinder are fastened together, the triangular block and the electromagnetic block are driven by magnetic repulsion, and the electromagnetic block and the inner frame are fastened together.

[0022] By adopting the above technical solution, the servo mechanism consists of a longitudinal hydraulic cylinder, a transverse hydraulic cylinder, a locking assembly, and a mounting base. It is designed to precisely control the longitudinal and transverse movements of the large-span beam mechanism and ensure the stability of each component's position through a locking mechanism. The longitudinal hydraulic cylinder and the locking assembly are connected via a transmission link, allowing the hydraulic cylinder's movement to directly affect the locking assembly, controlling the system's longitudinal movement and positioning. The longitudinal hydraulic cylinder is connected to the foundation pit via a fastening connection, providing the necessary longitudinal driving force to the system. The transverse hydraulic cylinder and the wedge-shaped seat achieve transverse adjustment via a transmission link, and are also connected to the mounting base via a fastening connection, ensuring the stability of the hydraulic cylinder during transverse adjustment. The locking assembly includes a triangular block, a fourth elastic element, an electromagnetic block, an inner frame, and an outer frame. The triangular block and the inner frame are slidably connected to ensure precise positioning of the locking assembly during operation. The triangular block and the outer frame abut against each other to ensure a tight fit, and the triangular block and the fourth elastic element maintain a certain elastic support through a fastening connection to prevent excessive displacement. The outer frame is equipped with a locking groove to ensure the locking assembly can be stably fixed in the required position, and is connected to the web member via a fastening connection, enhancing overall mechanical stability. The inner frame is securely connected to the longitudinal hydraulic cylinder, ensuring precise coordination between the longitudinal drive of the hydraulic cylinder and the control mechanism of the locking component. The triangular block and the electromagnetic block transmit power through magnetic repulsion. The electromagnetic block is securely connected to the inner frame, precisely controlling the locking action through electromagnetic force. During operation, the longitudinal and transverse hydraulic cylinders achieve precise adjustment of the large-span beam mechanism via hydraulic drive. The longitudinal hydraulic cylinder adjusts the longitudinal position of the overall structure, while the transverse hydraulic cylinder handles fine-tuning in the lateral direction. The locking component functions after the hydraulic cylinder adjustment, fixing the structure in the required position through the cooperation of the triangular block and the outer frame. The electromagnetic block triggers the locking action through magnetic repulsion, securing the structure and ensuring stability after adjustment. A fourth elastic element provides elastic support, further enhancing the locking effect and preventing loosening caused by vibration or external forces. The working principle is that when the system needs to be adjusted, the longitudinal and transverse hydraulic cylinders adjust the longitudinal and transverse positions of the structure respectively through controlled hydraulic drive. After adjustment, the electromagnetic block works with the triangular block through magnetic repulsion, ensuring accurate positioning of the locking component and fixing the entire system's position through the secure connection between the inner and outer frames. The cooperation between the fourth elastic element and the triangular block ensures the elastic support of the locking system, enhancing locking stability and preventing displacement or loosening. The locking groove design on the outer frame provides additional safety, ensuring that the structure remains locked under load or vibration. The result is that the servo mechanism, through precise hydraulic control and electromagnetic locking technology, can achieve high-precision adjustment and locking of the large-span beam structure, ensuring structural stability under various working conditions. The combination of dynamic adjustment of the hydraulic cylinder and static locking of the locking components not only enhances the overall adjustment capability of the device but also effectively reduces the impact of vibration or load changes on the structure, improving the system's safety and reliability.

[0023] Furthermore, the corner support mechanism includes corner connectors, corner support steel frames, and corner support rods. The corner connectors are fastened to the mounting base, the corner support rods are fastened to the mounting base, and the corner connectors are fastened to the corner support steel frames. The corner support steel frames are double-layered.

[0024] By adopting the above technical solution, the corner support mechanism, composed of corner connectors, corner support steel frames, and corner support rods, is designed to enhance the stability and load-bearing capacity of large-span beam structures. The corner connectors are securely fixed to the structure via fastening connections to the mounting bases, ensuring the firm installation of the corner bracing components. The corner support rods are also securely connected to the mounting bases, working in conjunction with the corner connectors and corner support steel frames to form a stable support structure. The corner connectors and corner support steel frames are firmly connected via fastening connections, ensuring force transmission and stability. In particular, the corner support steel frames are double-layered; by increasing the number of layers, the strength and stability of the corner support structure are improved, ensuring effective resistance to external forces from all directions under heavy loads. During operation, the corner support mechanism, through the combined action of the corner connectors, corner support steel frames, and corner support rods, provides additional support at critical locations in the large-span beam structure. The corner connectors and corner support steel frames, through a robust connection structure, form a high-strength support frame. When the structure shifts or is subjected to external forces, the corner support rods and corner support steel frames can quickly distribute the external forces, ensuring the stability of the beam. The double-layered corner support frame design can withstand greater loads, improve support capacity, and avoid potential weaknesses in a single-layer structure. The working principle is that the corner joints, through their secure connection to the mounting base, effectively transfer force to the corner support frame and corner joint rods. When bearing load, the corner joint rods distribute the external force to the corner support frame through the connection points. Supported by the double-layered frame structure, the entire corner support mechanism provides higher stability and stronger load-bearing capacity. The double-layered corner support frame increases structural strength and improves load-bearing capacity, enabling the system to adapt to greater loads or sudden pressures, avoiding the risk of structural instability or damage. The achieved result is that the corner support mechanism, through precise design and the application of high-strength materials, effectively enhances the stability and load-bearing capacity of the structure. The double-layered corner support frame allows the structure to distribute more pressure under high loads, preventing localized deformation or instability caused by force concentration, thereby significantly improving the safety and durability of large-span beam structures.

[0025] Furthermore, the detection mechanism includes a pressure sensor and a level sensor. The pressure sensor is fastened to the H-shaped steel frame, and the pressure sensor is located at the fixed point between the foundation pit and the H-shaped steel frame. The level sensor is fastened to the support frame.

[0026] By adopting the above technical solution, the detection mechanism consists of pressure sensors and level sensors, aiming to monitor the working status of the large-span beam structure in real time during use, ensuring its stability and safety. The pressure sensors are fixed to the H-shaped steel frame via a fastening connection and installed at the fixing point between the foundation pit and the H-shaped steel frame. They are responsible for monitoring the pressure changes borne by the large-span beam structure, ensuring that the structure does not exceed its safe bearing capacity during operation. The level sensors are connected to the support frame via a fastening connection, monitoring the horizontal state of the structure in real time, ensuring the balance of the support frame under various loads. During the workflow, the pressure sensors measure the pressure on the structure in real time and transmit the data to the control system, providing feedback on whether the structure is in a safe working state. If the measured pressure exceeds the set safety threshold, the system will automatically issue an alarm or take adjustment measures, such as reducing the load or adjusting the state of the support device. Simultaneously, the level sensors monitor changes in the horizontal position of the support frame, ensuring that the support frame does not tilt or deform under load, and promptly feed back data to the control system to help determine whether the structure has tilted or become unstable. If tilting exceeds the allowable range, the system will initiate an adjustment program to rebalance the structure. The working principle is as follows: pressure sensors detect pressure changes on the structure and convert the pressure into electrical signals using strain gauges and other sensing principles, which are then transmitted to the control system for processing and analysis. Horizontal sensors, on the other hand, use lasers, electronic levels, or tilt sensors to measure the horizontal angle of the support frame in real time, converting the data into signals that are fed back to the control system. The control system uses this data to make judgments and automatically adjusts the structure's operating state, ensuring the system remains in a safe and stable working environment. The achieved effect is that the detection mechanism, by accurately monitoring pressure and horizontal status, can detect potential structural risks in real time, preventing safety accidents caused by overload or imbalance. The high-precision monitoring of the pressure sensors ensures the structure remains within a reasonable load-bearing range, preventing structural damage due to excessive pressure. Meanwhile, the horizontal sensors, by detecting the horizontal status of the support frame in real time, prevent functional failures caused by tilting or instability, ensuring the reliability and safety of the large-span beam structure under various working conditions.

[0027] Compared with existing technologies, the advantages of this invention are as follows: The main support mechanism and the large-span beam mechanism are fastened together to jointly bear the heavy responsibility of supporting the large-span beam. The tension adjustment of the large-span beam is controlled by the tensioning motor, which controls the tension of the cables, and the tension of the cables further affects the position adjustment of the large-span beam. The sliding saddle is used to adjust the position of the beam, ensuring the stability and smoothness of the large-span beam under load. The combined design of the servo mechanism and hydraulic cylinders enables the support device to adjust the longitudinal and lateral support forces in real time according to changes in load, ensuring the stability of the structure. The servo mechanism precisely adjusts the position of the hydraulic cylinders by monitoring the data from the pressure sensor and the level sensor in real time, ensuring the smooth operation of the entire support system. The buffer assembly adopts a non-Newtonian fluid tank and a third elastic element design, which can effectively absorb external impacts and vibrations, reducing the impact of external vibrations on the large-span beam structure. The non-Newtonian fluid tank can change its flow characteristics according to the intensity of the external impact, achieving rapid absorption of impact energy and alleviating instantaneous load. The cooperation of the tensioning motor, the winding block, and the tension sensor enables precise adjustment of the cable tension. By utilizing real-time feedback of tension data, the system can promptly adjust the motor speed to ensure that the cable tension remains within the set range, guaranteeing the stability and safety of the large-span beam. The longitudinal and transverse hydraulic cylinders, along with locking components in the servo mechanism, work together to precisely control the longitudinal and transverse positions of the large-span beam, and an electromagnetic locking mechanism ensures positional stability. The locking components combine electromagnetic force and mechanical locking to ensure the structure remains stably fixed after adjustment, preventing displacement caused by vibration or load changes. The reinforced corner support mechanism, composed of corner connectors, corner support frames, and corner rods, provides additional support, enhancing the stability of the large-span beam structure. In particular, the double-layered corner support frame effectively increases the strength of the corner support structure, providing sufficient support under high loads to prevent the large-span beam from tilting or shifting. Attached Figure Description

[0028] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 is a schematic diagram of the main support mechanism of the present invention;

[0030] Figure 3 is a schematic diagram of the internal strut assembly structure of the present invention;

[0031] Figure 4 is a schematic diagram of the rotating rod structure of the present invention;

[0032] Figure 5 is a schematic diagram of the sliding groove structure of the present invention;

[0033] Figure 6 is a schematic diagram of the H-shaped steel frame structure of the present invention;

[0034] Figure 7 is a schematic diagram of the large-span beam mechanism of the present invention;

[0035] Figure 8 is a schematic diagram of the buffer component structure of the present invention;

[0036] Figure 9 is a schematic diagram of the servo mechanism structure of the present invention;

[0037] Figure 10 is a schematic diagram of the locking component structure of the present invention.

[0038] In the diagram: 1. Main support mechanism; 11. H-shaped steel frame; 111. End steel frame; 112. Middle section steel frame; 113. Telescopic hydraulic cylinder; 12. Inner support rod assembly; 121. Scissor brace; 122. Hinge brace; 123. Rotating rod; 124. Compression rod; 125. Connecting support plate; 126. Sliding block; 127. First elastic element; 128. Second elastic element; 13. Support frame; 131. Sliding groove; 14. Connecting plate; 15. Jack; 2. Large span beam mechanism; 21. Sliding saddle; 211. Hinge hole; 22. Buffer assembly; 221. Buffer plate; 222. Non-Newtonian fluid box; 223. Third elastic element. 1. Components; 23. Tie rod; 24. Cable; 25. Fork lug; 26. Web rod; 27. Wedge seat; 3. Tensioning mechanism; 31. Tensioning motor; 32. Winding block; 33. Tension sensor; 4. Servo mechanism; 41. Longitudinal hydraulic cylinder; 42. Lateral hydraulic cylinder; 43. Locking assembly; 431. Triangular block; 432. Fourth elastic element; 433. Electromagnetic block; 434. Inner frame; 435. Outer frame; 4351. Locking groove; 44. Mounting seat; 5. Corner support mechanism; 51. Corner connector; 52. Corner support steel frame; 53. Corner connector rod; 6. Detection mechanism; 61. Pressure sensor; 62. Horizontal sensor; 7. Foundation pit. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0040] Please refer to Figures 1-10. This invention provides a technical solution for a chord-type double-truss beam support device with feedback function based on structural steel:

[0041] The support device includes a main support mechanism 1, a large span beam mechanism 2, a tensioning mechanism 3, a servo mechanism 4, a corner support mechanism 5, a detection mechanism 6, and a foundation pit 7. The main support mechanism 1 and the large span beam mechanism 2 are fastened together, the tensioning mechanism 3 and the large span beam mechanism 2 are fastened together, the servo mechanism 4 and the tensioning mechanism 3 are connected by transmission, and the detection mechanism 6 and the servo mechanism 4 are electrically connected. The main support mechanism 1, the large span beam mechanism 2, the servo mechanism 4, and the corner support mechanism 5 are all fastened together to the foundation pit 7.

[0042] By adopting the above technical solution, the tension of the cable 24 is adjusted by the tension motor 31 and transmitted to the main span beam, and the beam position is adjusted by the sliding saddle 21. At the same time, the servo mechanism 4 adjusts the longitudinal and transverse hydraulic cylinders 42 according to the real-time data of the pressure sensor 61 and the level sensor 62 to ensure the stability of the support device. The buffer component 22 effectively reduces the impact of external vibration and improves the seismic resistance of the system, enabling the support device to maintain precise support and adjustment under different working conditions. The support device can work efficiently and stably under various environmental and load conditions, ensuring the stability and safety of the main span beam. At the same time, through precise tension adjustment and real-time monitoring, the long-term operation and seismic performance of the system are guaranteed, and it has excellent load capacity and adjustment response speed.

[0043] Furthermore, the main support mechanism 1 includes an H-shaped steel frame 11, an inner strut assembly 12, a support frame 13, a connecting plate 14, and a jack 15. The H-shaped steel frame 11 and the inner strut assembly 12 are fastened together, the H-shaped steel frame 11 and the connecting plate 14 are fastened together, and both ends of the H-shaped steel frame 11 are fastened together to the foundation pit 7. The support frame 13 is located on both sides of the H-shaped steel frame 11 and is fastened together to the foundation pit 7. The jack 15 is fastened together to the H-shaped steel frame 11 and is located at both ends of the H-shaped steel frame 11.

[0044] By adopting the above technical solution, the H-shaped steel frame 11 serves as the skeleton of the support device, forming a stable support structure through a fastened connection with the inner strut assembly 12. Both ends of the H-shaped steel frame 11 are fastened to the foundation pit 7, ensuring the stability and anti-overturning capability of the entire support device within the pit 7. The inner strut assembly 12, through its fastened connection with the H-shaped steel frame 11, forms lateral and longitudinal support forces, ensuring the strength and stability of the structure. The support frame 13 is located on both sides of the H-shaped steel frame 11 and is fastened to the foundation pit 7 through connecting plates 14, providing additional support force and enhancing the overall structural stability. Jacks 15 are located at both ends of the H-shaped steel frame 11 and are fastened to it, providing adjustable support force through hydraulic means, allowing for lifting and lowering adjustments according to load requirements. In the workflow, the jacks 15 first adjust the height of the H-shaped steel frame 11 through the hydraulic system, thereby adjusting the stability of the entire support device. The support frame 13 and the inner strut assembly 12 provide support through a fastened connection, while the fastened connection between the H-shaped steel frame 11 and the foundation pit 7 ensures the fixation and anti-lateral displacement of the device. Under load, the jack 15 provides the necessary adjustment force, allowing the H-shaped steel frame 11 and the entire support device to be flexibly adjusted according to different working conditions, ensuring that the device can bear the load in a stable state. The hydraulic jack 15 precisely controls the lifting and lowering of the H-shaped steel frame 11, adjusting the height of the device. At the same time, the structural design of the support frame 13 and the inner strut assembly 12 provides stable support, ensuring that the load borne by the system will not cause tilting or displacement. The stability and adjustability of the entire main support structure are achieved through the close cooperation of the H-shaped steel frame 11, the support frame 13, the jack 15, and the inner strut assembly 12. This main support mechanism 1 can provide stable support through precise hydraulic adjustment under different load and environmental conditions, enhancing the overall load-bearing capacity of the structure, and can be height adjusted as needed, ensuring the dynamic adaptability and stability of the support system and preventing support instability due to load changes.

[0045] Furthermore, the inner strut assembly 12 includes a scissor brace 121, a hinged brace 122, a rotating rod 123, a compression rod 124, a connecting plate 125, a sliding block 126, a first elastic element 127, and a second elastic element 128. The hinged brace 122 and the sliding block 126 are hinged together, the sliding block 126 is slidably connected to the support frame 13, the sliding block 126 is fastened to the first elastic element 127, and the first elastic element 127 is fastened to the support frame 13. The scissor brace 121... 21 and H-shaped steel frame 11 are hinged together. Rotating rod 123 and second elastic element 128 are fastened together. Second elastic element 128 and compression rod 124 are fastened together. Compression rod 124 and rotating rod 123 are slidably connected. Compression rod 124 and support frame 13 are rotatably connected. Support frame 13 is provided with sliding groove 131. Sliding block 126 and sliding groove 131 are slidably connected. Connecting support plate 125 and H-shaped steel frame 11 are fastened together. Scissor bracing rod 121 and H-shaped steel frame 11 are fastened together.

[0046] By adopting the above technical solution, the hinged brace 122 and the sliding block 126 are hinged together, and the sliding block 126 is slidably connected to the support frame 13, allowing the inner support rod assembly 12 to undergo a certain displacement under force. The sliding block 126 is fastened to the first elastic element 127, which is also fastened to the support frame 13, providing elastic support and maintaining the stability of the support frame 13 under force. The scissor brace 121 is hinged to the H-shaped steel frame 11, providing additional stabilizing force and making the entire main support structure more robust. The rotating rod 123 is fastened to the second elastic element 128, controlling the rotational torque and ensuring the smoothness of the inner support rod assembly 12 during deformation. The second elastic element 128 and the compression rod 124 are fastened together, providing appropriate compressive force and ensuring the stability of the structure under compression. Compression rod 124 and rotating rod 123 are slidably connected, forming a combined rotation and compression action to achieve flexible force adjustment. Compression rod 124 is rotatably connected to support frame 13, ensuring that support frame 13 can make appropriate adjustments when under force. Support frame 13 is provided with sliding groove 131, and sliding block 126 is slidably connected to sliding groove 131 to further ensure the stability and flexibility of inner strut assembly 12. Connecting plate 125 is fastened to H-shaped steel frame 11, increasing the connection strength between inner strut assembly 12 and H-shaped steel frame 11. Scissor brace rod 121 is also fastened to H-shaped steel frame 11, enhancing the overall rigidity and stability of the structure. When a load is applied to the support device, the scissor brace 121 and the hinged brace 122 work together, adjusting the shape of the inner support assembly 12 through the hinge point to transmit the force to the H-shaped steel frame 11. Simultaneously, the sliding block 126 in the sliding groove 131 enables fine-tuning, and the elastic action of the first elastic element 127 stabilizes the structure. The rotating rod 123 and the second elastic element 128 work together to adjust the torque, ensuring the support frame 13 remains stable during compression and rotation. The sliding connection between the compression rod 124 and the rotating rod 123 ensures the adaptability and flexibility of the structure under complex loads. Finally, the entire inner support assembly 12, through the fastening connection of the connecting plate 125 to the H-shaped steel frame 11, forms a strong and flexible support system. Through the coordinated action of the various components in the inner support assembly 12, stability and adaptability of the inner support assembly 12 are achieved under different load conditions. The cooperation between the sliding block 126 and the sliding groove 131 allows for fine-tuning of the support frame 13, while the first and second elastic elements 128 provide the necessary elastic support to maintain stability under different forces. The combination of the rotating rod 123 and the compression rod 124 enables the inner support rod assembly 12 to flexibly cope with compression and rotational forces, thereby ensuring the reliability of the entire support device.The internal strut assembly 12 can stably support under dynamic loads and adapt to different deformation requirements. Through the design of elastic elements and sliding connections, it can be flexibly adjusted to ensure the stability, load-bearing capacity and seismic performance of the structure. This enables the entire support device to operate continuously and effectively in complex working environments, ensuring high precision and high reliability.

[0047] Furthermore, the H-shaped steel frame 11 includes an end steel frame 111, a middle steel frame 112, and a telescopic hydraulic cylinder 113. The end steel frame 111 and the middle steel frame 112 are slidably connected, the telescopic hydraulic cylinder 113 and the middle steel frame 112 are fastened together, and the telescopic hydraulic cylinder 113 and the end steel frame 111 are connected by a transmission.

[0048] By adopting the above technical solution, the end steel frame 111 and the middle steel frame 112 are connected by a sliding connection. This design allows them to slide relative to each other, thus allowing the structure to make necessary displacements or adjustments when under stress. The telescopic hydraulic cylinder 113 is connected to the middle steel frame 112 by a fastening connection and simultaneously connected to the end steel frame 111 by a transmission connection. This hydraulic cylinder configuration allows the end steel frame 111 to be precisely adjusted longitudinally on the middle steel frame 112. Specifically, the hydraulic cylinder can control the lifting and lowering of the end steel frame 111, adjusting the height and stability of the entire H-shaped steel frame 11, thereby achieving dynamic adjustment of the support device. During the operation, when it is necessary to adjust the height or position of the support device, the telescopic hydraulic cylinder 113, driven by hydraulic pressure, pushes the end steel frame 111 to slide on the middle steel frame 112, thereby achieving vertical lifting or other necessary adjustments to the overall structure. Due to the sliding connection between the end steel frame 111 and the middle steel frame 112, the force provided by the hydraulic cylinder acts directly on the end steel frame 111, achieving smooth height adjustment through the sliding mechanism. The hydraulic system enables the entire H-beam steel frame 11 to flexibly respond to external loads and maintain structural balance and stability. The telescopic hydraulic cylinder 113 utilizes the pressurization capacity of the hydraulic system to transmit force to the end steel frame 111 via a transmission connection, causing it to slide on the middle steel frame 112. The telescopic movement of the hydraulic cylinder precisely controls the positional changes of the end steel frame 111, ensuring uniform force distribution and stability during adjustment. Due to the sliding connection design, the relative displacement between the end steel frame 111 and the middle steel frame 112 can proceed smoothly, avoiding structural damage caused by excessive friction or jamming. Utilizing the adjustment function of the telescopic hydraulic cylinder 113, the support device can flexibly adjust its height or position when the load changes, ensuring the stability and adaptability of the support system. This design improves the flexibility and seismic resistance of the support structure, enabling stable operation under various working conditions and ensuring the system's high efficiency and reliability.

[0049] Furthermore, the large-span beam mechanism 2 includes a sliding saddle 21, a buffer assembly 22, a tie rod 23, a cable 24, a fork lug 25, a web member 26, and a wedge seat 27. The sliding saddle 21 is provided with three hinge holes 211. The buffer assembly 22 is fastened to the sliding saddle 21. The tie rod 23 is hinged to the sliding saddle 21. The cable 24 is tensioned by abutting against the sliding saddle 21. The cable 24 is fastened to the wedge seat 27. The tie rod 23 is hinged to the wedge seat 27. The fork lug 25 is fastened to the web member 26. The fork lug 25 is hinged to the sliding saddle 21. The web member 26 is fastened to the servo mechanism 4. The wedge seat 27 is fastened to the servo mechanism 4.

[0050] By adopting the above technical solution, the sliding saddle 21 is provided with three hinge holes 211, which are used to connect the tie rod 23, the fork lug 25, and the cable 24, respectively. The buffer assembly 22 is fastened to the sliding saddle 21, providing necessary buffering and vibration suppression functions to reduce the impact of external impacts on the large-span beam mechanism 2. The tie rod 23 is connected to the sliding saddle 21 by hinge, allowing the tie rod 23 to generate a certain angle change with the sliding saddle 21 under the action of force, transmitting force and adjusting position. At the same time, the cable 24 contacts and tensions the sliding saddle 21, transmitting the tension to the wedge seat 27, and achieving stable fixation through a fastening connection. The tie rod 23 and the wedge seat 27 are hinged, allowing flexible adjustment between them. The fork lug 25 is fastened to the web member 26 to ensure the stability of the structure. At the same time, the hinged design of the fork lug 25 and the sliding saddle 21 realizes the transmission and adjustment of force. The web member 26 is securely connected to the servo mechanism 4, working together to provide lateral stability. The wedge seat 27 is also securely connected to the servo mechanism 4, and precise control of the entire large-span beam mechanism 2 is achieved through a hydraulic or electric adjustment controller. First, the cable 24 transmits tension through the sliding saddle 21, ensuring a uniform distribution of tension force on the large-span beam and further adjusting the beam's shape. The tie rod 23, hinged to the sliding saddle 21 and wedge seat 27, bears the reaction force from the tension force. Simultaneously, the web member 26, connected to the sliding saddle 21 through the fork lug 25, collaboratively shares and stabilizes the structure. The buffer assembly 22 functions during load changes, reducing external vibration or impact and protecting the large-span beam from damage caused by instantaneous high loads. Through the control of the web member 26 and wedge seat 27 by the servo mechanism 4, dynamic adjustment of the beam under different loads can be achieved, ensuring stable operation of the device under various working conditions. The cable 24, through tension stretching, drives the sliding saddle 21 to move, thereby adjusting the position of the large-span beam and transmitting the adjustment to the wedge seat 27. The hinged connection between the tie rod 23 and the wedge seat 27 makes force transmission more efficient, while the tight connection between the web rod 26 and the servo mechanism 4 makes the adjustment process more precise. When the load changes, the buffer assembly 22 absorbs part of the impact force to balance the instantaneous load, ensuring that the entire large-span beam mechanism 2 remains in a stable state. The effect is that, through the coordinated work of the above components, the large-span beam mechanism 2 can guarantee the stability, flexibility, and efficient adjustment of the beam when subjected to complex loads. The effective combination of the sliding saddle 21, the buffer assembly 22, and the servo mechanism 4 not only improves seismic resistance but also precisely adjusts the tension and position of the large-span beam, ensuring stable operation under long-term high loads, extending the service life of the device, and meeting the needs of various working conditions.

[0051] Furthermore, the buffer assembly 22 includes a buffer plate 221, a non-Newtonian fluid tank 222, and a third elastic element 223. The non-Newtonian fluid tank 222 is fastened to the sliding saddle 21, the buffer plate 221 is slidably connected to the non-Newtonian fluid tank 222, the third elastic element 223 is fastened to the non-Newtonian fluid tank 222, and the third elastic element 223 is fastened to the buffer plate 221.

[0052] By adopting the above technical solution, the impact assembly consists of a buffer plate 221, a non-Newtonian fluid tank 222, and a third elastic element 223. It is designed to effectively mitigate external impact forces and vibrations, protecting the large-span beam mechanism 2 from damage caused by instantaneous high loads. The non-Newtonian fluid tank 222 is securely connected to the sliding saddle 21. As the core component of the buffer assembly 22, the non-Newtonian fluid can change its flow characteristics according to pressure changes. Therefore, when external impacts or vibrations are transmitted to the sliding saddle 21, the fluid in the non-Newtonian fluid tank 222 can quickly adjust its flow state, effectively absorbing impact energy. The buffer plate 221 is slidably connected to the non-Newtonian fluid tank 222, allowing for slight displacement between the buffer plate 221 and the non-Newtonian fluid tank 222 under external force, thereby enhancing impact absorption capacity. The third elastic element 223 is securely connected to both the non-Newtonian fluid tank 222 and the buffer plate 221, providing additional elastic support, further improving the buffering effect, and ensuring that the entire system can respond smoothly and return to its original position under stress. In the workflow, when external impact or vibration acts on the large-span beam mechanism 2, the buffer plate 221 and the non-Newtonian fluid tank 222 work together. The non-Newtonian fluid tank 222 absorbs impact energy and alleviates instantaneous high load through the fluid's flow characteristics, while the buffer plate 221 displaces according to the magnitude of the impact, thereby further reducing vibration transmission. The third elastic element 223 provides buffering force under load through its elastic properties, ensuring that the system can quickly return to its original position and operate stably after the impact. The entire buffer assembly 22 can effectively disperse external impact energy and reduce damage to the large-span beam structure. The working principle is that the fluid in the non-Newtonian fluid tank 222 has non-linear flow characteristics. When subjected to external pressure, the viscosity of the fluid increases, thereby effectively slowing down the transmission of external force. The sliding connection between the buffer plate 221 and the non-Newtonian fluid tank 222 allows the buffer plate 221 to move smoothly under fluid pressure, further absorbing and dispersing impact energy. The third elastic element 223 plays a restorative and elastic support role, quickly restoring the system to its initial state after the external force is released, avoiding the continuous impact of vibration on the device. The achieved effect is that, through the fluid characteristics of the non-Newtonian fluid tank 222 and the synergistic effect of the buffer plate 221 and the third elastic element 223, the buffer assembly 22 can efficiently absorb and disperse external shocks and vibrations, greatly improving the shock resistance and stability of the large-span beam mechanism 2. Even under extreme working conditions, the entire support device can remain stable, preventing structural damage or positional displacement caused by impacts, thereby ensuring the long-term stable operation and reliability of the system.

[0053] Furthermore, the tensioning mechanism 3 includes a tensioning motor 31, a winding block 32, and a tension sensor 33. The tensioning motor 31 is fastened to the sliding saddle 21, the tensioning motor 31 is driven to the winding block 32, the tension sensor 33 is fastened to the winding block 32, and the winding block 32 abuts against the cable 24.

[0054] By adopting the above technical solution, the tensioning mechanism 3 consists of a tensioning motor 31, a winding block 32, and a tension sensor 33, aiming to precisely control and adjust the tension of the cable 24. The tensioning motor 31 is fastened to the sliding saddle 21 and serves as the drive source, electrically driving the winding block 32 to rotate. The winding block 32 is connected to the tensioning motor 31 via a transmission connection, receiving the motor's driving torque and changing the tension of the cable 24 by rotation, ensuring precise control of the cable 24's tension. The tension sensor 33 is fastened to the winding block 32, monitoring the tension of the cable 24 in real time and transmitting feedback signals to the control system to ensure the tension remains within a predetermined range. The winding block 32 contacts the cable 24 and abuts against it through tension; the tension state of the cable 24 is controlled by the adjustment of the winding block 32, ensuring system stability during operation. In the working process, after the tensioning motor 31 starts, it drives the winding block 32 to rotate, causing the cable 24 to generate the required tension. The rotation of the winding block 32 drives the tension cable 24 to be tensioned. The tension sensor 33 monitors the tension of the cable 24 in real time and feeds the data back to the control system. The control system adjusts the motor speed according to the tension value fed back by the sensor to ensure that the tension of the cable 24 is always kept within the set value range. Through this precise adjustment, the tensioning mechanism 3 can adjust the tension in a timely manner according to the actual load requirements, thereby ensuring the stability of the large-span beam mechanism 2. The working principle is that the tensioning motor 31 drives the winding block 32 to rotate, changing the relative position between the winding block 32 and the cable 24, thereby adjusting the tension of the cable 24. The tension sensor 33 monitors the actual tension of the cable 24 and converts it into an electrical signal, which is transmitted to the control system. The control system adjusts the working state of the motor in real time according to the feedback signal. The change in the motor speed will directly affect the rotation rate of the winding block 32, thereby precisely controlling the tension of the cable 24 and ensuring smooth operation under load conditions. The effect achieved is that, through this precise adjustment mechanism, the tensioning mechanism 3 can adjust the tension of the cable 24 in real time under load changes, ensuring the stability and safety of the structure. The feedback mechanism of the tension sensor 33 enables the system to automatically adjust, ensuring that the tension is kept within the ideal range, avoiding over-tensioning or slack, and improving the overall performance and reliability of the large-span beam mechanism 2.

[0055] Furthermore, the servo mechanism 4 includes a longitudinal hydraulic cylinder 41, a transverse hydraulic cylinder 42, a locking assembly 43, and a mounting base 44. The longitudinal hydraulic cylinder 41 and the locking assembly 43 are connected by a drive mechanism, the web rod 26 and the locking assembly 43 are connected by a drive mechanism, the longitudinal hydraulic cylinder 41 and the pit 7 are fastened together, the transverse hydraulic cylinder 42 and the wedge-shaped seat 27 are connected by a drive mechanism, and the transverse hydraulic cylinder 42 and the mounting base 44 are fastened together. The locking assembly 43 includes a triangular block 431, a fourth elastic element 432, an electromagnetic block 433, and an inner frame 4. 34 and outer frame 435, triangular block 431 and inner frame 434 are slidably connected, triangular block 431 and outer frame 435 abut, triangular block 431 and fourth elastic element 432 are fastened together, triangular block 431 and outer frame 435 abut, outer frame 435 is provided with locking groove 4351, outer frame 435 and web rod 26 are fastened together, inner frame 434 and longitudinal hydraulic cylinder 41 are fastened together, triangular block 431 and electromagnetic block 433 are magnetically repelled and driven, electromagnetic block 433 and inner frame 434 are fastened together.

[0056] By adopting the above technical solution, the servo mechanism 4 consists of a longitudinal hydraulic cylinder 41, a transverse hydraulic cylinder 42, a locking component 43, and a mounting base 44. It is designed to precisely control the longitudinal and transverse movements of the large-span beam mechanism 2, and ensures the stability of each part's position through a locking mechanism. The longitudinal hydraulic cylinder 41 and the locking component 43 are connected by a transmission link, allowing the hydraulic cylinder's movement to directly affect the locking component 43, thus controlling the system's longitudinal movement and positioning. The longitudinal hydraulic cylinder 41 is connected to the foundation pit 7 via a fastening connection, providing the necessary longitudinal driving force to the system. The transverse hydraulic cylinder 42 is connected to the wedge-shaped seat 27 via a transmission link to achieve transverse adjustment, and is also connected to the mounting base 44 via a fastening connection to ensure the stability of the hydraulic cylinder during transverse adjustment. The locking component 43 includes a triangular block 431, a fourth elastic element 432, an electromagnetic block 433, an inner frame 434, and an outer frame 435. The triangular block 431 and the inner frame 434 are slidably connected to ensure the precise positioning of the locking component 43 during operation. The triangular block 431 and the outer frame 435 abut against each other to ensure a tight fit of the structure, and the triangular block 431 and the fourth elastic element 432 are fastened together to maintain a certain elastic support and prevent excessive displacement. The outer frame 435 is provided with a locking groove 4351 to ensure that the locking component 43 can be stably fixed in the required position, and is connected to the web member 26 through a fastening connection to enhance the overall mechanical stability. The inner frame 434 is fastened together with the longitudinal hydraulic cylinder 41 to ensure that the longitudinal drive of the hydraulic cylinder can be precisely matched with the control mechanism of the locking component 43. The triangular block 431 and the electromagnetic block 433 are driven by magnetic repulsion. The electromagnetic block 433 is fastened together with the inner frame 434, and the locking action is precisely controlled by the electromagnetic force. In the working process, the longitudinal hydraulic cylinder 41 and the transverse hydraulic cylinder 42 achieve precise adjustment of the large span beam mechanism 2 through hydraulic drive. The longitudinal hydraulic cylinder 41 adjusts the longitudinal position of the overall structure, while the transverse hydraulic cylinder 42 is responsible for transverse fine adjustment. The locking component 43 functions after adjustment by the hydraulic cylinders, fixing the structure in the desired position through the cooperation of the triangular block 431 and the outer frame 435. The electromagnetic block 433 triggers the locking action through a magnetic repulsion mechanism, securing the structure and ensuring stability after adjustment. The fourth elastic element 432 provides elastic support, further enhancing the locking effect and preventing loosening caused by vibration or external forces. The working principle is that when the system needs to be adjusted, the longitudinal hydraulic cylinder 41 and the transverse hydraulic cylinder 42 adjust the longitudinal and transverse positions of the structure respectively through controlled hydraulic drive. After adjustment, the electromagnetic block 433 works in conjunction with the triangular block 431 through magnetic repulsion, ensuring accurate positioning of the locking component 43 and fixing the entire system's position through the fastening connection of the inner frame 434 and the outer frame 435. The cooperation of the fourth elastic element 432 and the triangular block 431 ensures elastic support for the locking system, enhancing locking stability and preventing displacement or loosening. The locking groove 4351 on the outer frame 435 provides additional safety, ensuring the structure remains locked under load or vibration.The achieved effect is that the servo mechanism 4, through precise hydraulic control and electromagnetic locking technology, can realize high-precision adjustment and locking of the large-span beam structure, ensuring that the structure remains stable under various working conditions. The combination of dynamic adjustment of the hydraulic cylinder and static locking of the locking component 43 not only improves the adjustment capability of the entire device, but also effectively reduces the impact of vibration or load changes on the structure, thereby improving the safety and reliability of the system.

[0057] Furthermore, the corner support mechanism 5 includes a corner connector 51, a corner support steel frame 52, and a corner connector rod 53. The corner connector 51 is fastened to the mounting base 44, the corner connector rod 53 is fastened to the mounting base 44, and the corner connector 51 is fastened to the corner support steel frame 52. The corner support steel frame 52 is a double-layer structure.

[0058] By adopting the above technical solution, the corner support mechanism 5, composed of corner connectors 51, corner support steel frames 52, and corner support rods 53, is designed to enhance the stability and load-bearing capacity of large-span beam structures. Corner connectors 51 are fastened to the structure via mounting bases 44, ensuring the secure installation of the corner bracing assembly. Corner support rods 53 are also fastened to the mounting bases 44, working in conjunction with corner connectors 51 and corner support steel frames 52 to form a stable support structure. The corner connectors 51 and corner support steel frames 52 are securely connected, ensuring force transmission and stability. In particular, the corner support steel frames 52 are double-layered; by increasing the number of layers, the strength and stability of the corner support structure are improved, ensuring effective resistance to external forces from all directions under heavy loads. During operation, the corner support mechanism 5, through the combined action of corner connectors 51, corner support steel frames 52, and corner support rods 53, provides additional support at critical locations in the large-span beam structure. The corner connector 51 and the corner support frame 52 form a high-strength support frame through a robust connection structure. When the structure shifts or is subjected to external forces, the corner connector rod 53 and the corner support frame 52 can quickly distribute the external forces, ensuring the stability of the beam. The double-layered corner support frame 52 can withstand greater loads, improve support capacity, and avoid the weak points that may result from a single-layered structure. The working principle is that the corner connector 51, through its tight connection with the mounting base 44, effectively transmits force to the corner support frame 52 and the corner connector rod 53. When the corner connector rod 53 bears a load, it distributes the external force to the corner support frame 52 through the connection. Under the support of the double-layered steel frame structure, the entire corner support mechanism 5 can provide higher stability and stronger load-bearing capacity. The double-layered corner support frame 52 increases structural strength and improves load-bearing capacity, enabling the system to adapt to greater loads or sudden pressures, avoiding the risk of structural instability or damage. The achieved effect is that the corner support mechanism 5, through precise design and the application of high-strength materials, can effectively enhance the stability and load-bearing capacity of the structure. The double-layer corner support steel frame 52 enables the structure to share more pressure when facing high loads, preventing local deformation or instability caused by force concentration, thereby significantly improving the safety and durability of the large-span beam structure.

[0059] Furthermore, the detection mechanism 6 includes a pressure sensor 61 and a level sensor 62. The pressure sensor 61 is fastened to the H-shaped steel frame 11. The pressure sensor 61 is located at the fixed point between the foundation pit 7 and the H-shaped steel frame 11. The level sensor 62 is fastened to the support frame 13.

[0060] By adopting the above technical solution, the detection mechanism 6 consists of a pressure sensor 61 and a level sensor 62, designed to monitor the working status of the large-span beam structure in real time during use, ensuring its stability and safety. The pressure sensor 61 is fixed to the H-shaped steel frame 11 via a fastening connection and is installed at the fixing point between the foundation pit 7 and the H-shaped steel frame 11. It is responsible for monitoring the pressure changes borne by the large-span beam structure, ensuring that the structure does not exceed its safe bearing capacity during operation. The level sensor 62 is connected to the support frame 13 via a fastening connection, monitoring the horizontal state of the structure in real time, ensuring the balance of the support frame 13 under various loads. During the workflow, the pressure sensor 61 measures the pressure on the structure in real time and transmits the data to the control system, providing feedback on whether the structure is in a safe working state. If the measured pressure exceeds the set safety threshold, the system will automatically issue an alarm or take adjustment measures, such as reducing the load or adjusting the state of the support device. Simultaneously, the level sensor 62 monitors the horizontal position changes of the support frame 13, ensuring that the support frame 13 does not tilt or deform under load, and promptly feeds back data to the control system to help determine whether the structure is tilting or unstable. If tilting exceeds the allowable range, the system will initiate an adjustment procedure to rebalance the structure. The working principle is as follows: pressure sensor 61 senses changes in pressure on the structure, converting the pressure into an electrical signal using strain gauges and other sensing principles, which is then transmitted to the control system for processing and analysis. Meanwhile, level sensor 62 uses lasers, electronic levels, or tilt sensors to measure the horizontal angle of the support frame 13 in real time, converting the data into a signal and feeding it back to the control system. The control system makes judgments based on the data from these sensors and automatically adjusts the structure's operating state, ensuring the system is always in a safe and stable working environment. The achieved effect is that the detection mechanism 6, by accurately monitoring pressure and level status, can detect potential structural risks in real time, avoiding safety accidents caused by overload or imbalance. The high-precision monitoring of pressure sensor 61 ensures the structure is always within a reasonable load-bearing range, preventing structural damage due to excessive pressure. And level sensor 62, by detecting the horizontal status of the support frame 13 in real time, prevents functional failures due to tilting or instability, ensuring the reliability and safety of the large-span beam structure under various working conditions.

[0061] Working principle of the invention:

[0062] The specific implementation of this support device achieves support, tension adjustment, stability detection, and motion control through the close cooperation of multiple mechanisms. First, the main support mechanism 1 is securely connected to the foundation pit 7 via an H-shaped steel frame 11, inner support rod assembly 12, support frame 13, and connecting plate 14, forming the basic structure of the support device. The large-span beam mechanism 2 is connected to the main support mechanism 1 via a sliding saddle 21, buffer assembly 22, tie rod 23, cable 24, fork lug 25, web rod 26, and wedge seat 27, providing a wider range of support and tension adjustment. The tensioning mechanism 3 is connected to the large-span beam mechanism 2 via a tensioning motor 31, winding block 32, and tension sensor 33, achieving precise tension control. The servo mechanism 4 is connected to the tensioning mechanism 3 via a longitudinal hydraulic cylinder 41, transverse hydraulic cylinder 42, locking assembly 43, and mounting base 44, providing automatic adjustment motion and locking functions. The corner support mechanism 5 provides additional stable support via corner connectors 51, corner support steel frames 52, and corner connector rods 53, enhancing the overall structure's load-bearing capacity. The detection mechanism 6 consists of a pressure sensor 61 and a level sensor 62, which monitor the stress and horizontal state of the device and transmit the data to the servo mechanism 4 for real-time adjustment of the support system. In terms of workflow, firstly, the tension motor 31 drives the winding block 32 to adjust the tension, the cable 24 is subjected to tension and transmitted to the main span beam mechanism 2, and its position is adjusted via the sliding saddle 21 to ensure the stability of the main span beam. The longitudinal hydraulic cylinder 41 and the transverse hydraulic cylinder 42 in the servo mechanism 4 are precisely adjusted based on the data fed back by the detection mechanism 6 to ensure the device remains at the predetermined position and angle. The buffer assembly 22 mitigates external impacts through the non-Newtonian fluid tank 222 and the third elastic element 223, protecting the device from vibration and extending its service life. The overall working principle is that through the coordinated work of various parts, the tight connection between the main support structure and the main span beam forms a stable support, the tension mechanism 3 precisely controls the tension, the servo mechanism 4 automatically adjusts, the corner support mechanism 5 enhances stability, and the detection mechanism 6 monitors and provides feedback in real time to ensure the device maintains optimal condition during operation. Through this precise design, the support device can provide efficient and stable support and adjustment under various working conditions, with strong load capacity and seismic performance, meeting the high precision requirements in complex environments.

[0063] 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 in all respects as exemplary and non-limiting, 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. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A stringed double truss support device based on structural steel with feedback function, characterized by: The support device includes a main support mechanism (1), a large span beam mechanism (2), a tensioning mechanism (3), a servo mechanism (4), a corner support mechanism (5), a detection mechanism (6), and a foundation pit (7). The main support mechanism (1) and the large span beam mechanism (2) are fastened together. The tensioning mechanism (3) and the large span beam mechanism (2) are fastened together. The servo mechanism (4) and the tensioning mechanism (3) are connected by transmission. The detection mechanism (6) and the servo mechanism (4) are electrically connected. The main support mechanism (1), the large span beam mechanism (2), the servo mechanism (4), and the corner support mechanism (5) are all fastened together with the foundation pit (7).

2. The stringed-pole double-truss support device based on structural steel with feedback function according to claim 1, characterized in that: The main support mechanism (1) includes an H-shaped steel frame (11), an inner support rod assembly (12), a support frame (13), a connecting plate (14), and a jack (15). The H-shaped steel frame (11) and the inner support rod assembly (12) are fastened together. The H-shaped steel frame (11) and the connecting plate (14) are fastened together. Both ends of the H-shaped steel frame (11) are fastened together to the foundation pit (7). The support frame (13) is located on both sides of the H-shaped steel frame (11). The support frame (13) is fastened together to the foundation pit (7). The jack (15) is fastened together to the H-shaped steel frame (11). The jack (15) is located at both ends of the H-shaped steel frame (11).

3. The stringed-pole double-truss support device based on structural steel with feedback function according to claim 2, characterized in that: The inner strut assembly (12) includes a scissor brace (121), a hinged brace (122), a rotating rod (123), a compression rod (124), a connecting plate (125), a sliding block (126), a first elastic element (127), and a second elastic element (128). The hinged brace (122) and the sliding block (126) are hinged together. The sliding block (126) and the support frame (13) are slidably connected. The sliding block (126) and the first elastic element (127) are fastened together. The first elastic element (127) and the support frame (13) are fastened together. The scissor brace (121) and the sliding block (122) are connected together. The H-shaped steel frame (11) is hinged, the rotating rod (123) is fastened to the second elastic element (128), the second elastic element (128) is fastened to the compression rod (124), the compression rod (124) is slidably connected to the rotating rod (123), the compression rod (124) is rotatably connected to the support frame (13), the support frame (13) is provided with a sliding groove (131), the sliding block (126) is slidably connected to the sliding groove (131), the connecting plate (125) is fastened to the H-shaped steel frame (11), and the scissor bracing rod (121) is fastened to the H-shaped steel frame (11).

4. The stringed-pole double-truss support device based on structural steel with feedback function according to claim 3, characterized in that: The H-shaped steel frame (11) includes an end steel frame (111), a middle steel frame (112), and a telescopic hydraulic cylinder (113). The end steel frame (111) and the middle steel frame (112) are slidably connected, the telescopic hydraulic cylinder (113) and the middle steel frame (112) are fastened together, and the telescopic hydraulic cylinder (113) and the end steel frame (111) are connected by a transmission.

5. The stringed-pole double-truss support device based on structural steel with feedback function according to claim 4, characterized in that: The large-span beam mechanism (2) includes a sliding saddle (21), a buffer assembly (22), a tie rod (23), a cable (24), a fork lug (25), a web member (26), and a wedge seat (27). The sliding saddle (21) is provided with three hinge holes (211). The buffer assembly (22) and the sliding saddle (21) are fastened together, and the tie rod (23) and the sliding saddle (21) are hinged together. The cable (24) and the sliding saddle (21) are tensioned by abutment. The cable (24) and the wedge seat (27) are fastened together. The tie rod (23) and the wedge seat (27) are hinged together. The fork lug (25) and the web rod (26) are fastened together. The fork lug (25) and the sliding saddle (21) are hinged together. The web rod (26) and the servo mechanism (4) are fastened together. The wedge seat (27) and the servo mechanism (4) are fastened together.

6. The stringed-pole double-truss support device based on structural steel with feedback function according to claim 5, characterized in that: The buffer assembly (22) includes a buffer plate (221), a non-Newtonian fluid tank (222), and a third elastic element (223). The non-Newtonian fluid tank (222) is fastened to the sliding saddle (21), the buffer plate (221) is slidably connected to the non-Newtonian fluid tank (222), the third elastic element (223) is fastened to the non-Newtonian fluid tank (222), and the third elastic element (223) is fastened to the buffer plate (221).

7. The stringed-pole double-truss support device based on structural steel with feedback function according to claim 6, characterized in that: The tensioning mechanism (3) includes a tensioning motor (31), a winding block (32), and a tension sensor (33). The tensioning motor (31) is fastened to the sliding saddle (21), the tensioning motor (31) is driven to the winding block (32), the tension sensor (33) is fastened to the winding block (32), and the winding block (32) abuts against the cable (24).

8. The stringed-pole double-truss support device based on structural steel with feedback function according to claim 7, characterized in that: The servo mechanism (4) includes a longitudinal hydraulic cylinder (41), a transverse hydraulic cylinder (42), a locking assembly (43), and a mounting base (44). The longitudinal hydraulic cylinder (41) and the locking assembly (43) are connected by a drive mechanism. The web rod (26) and the locking assembly (43) are connected by a drive mechanism. The longitudinal hydraulic cylinder (41) is fastened to the pit (7). The transverse hydraulic cylinder (42) is connected to the wedge seat (27). The transverse hydraulic cylinder (42) and the mounting base (44) are fastened to each other. The locking assembly (43) includes a triangular block (431), a fourth elastic element (432), an electromagnetic block (433), an inner frame (434), and... The outer frame (435), the triangular block (431) and the inner frame (434) are slidably connected, the triangular block (431) and the outer frame (435) abut against each other, the triangular block (431) and the fourth elastic element (432) are fastened together, the triangular block (431) and the outer frame (435) abut against each other, the outer frame (435) is provided with a locking groove (4351), the outer frame (435) and the web rod (26) are fastened together, the inner frame (434) and the longitudinal hydraulic cylinder (41) are fastened together, the triangular block (431) and the electromagnetic block (433) are magnetically repelled and driven, and the electromagnetic block (433) and the inner frame (434) are fastened together.

9. The stringed-pole double-truss support device based on structural steel with feedback function according to claim 8, characterized in that: The corner support mechanism (5) includes a corner connector (51), a corner support steel frame (52), and a corner support rod (53). The corner connector (51) is fastened to the mounting base (44), the corner support rod (53) is fastened to the mounting base (44), and the corner connector (51) is fastened to the corner support steel frame (52). The corner support steel frame (52) is double-layered.

10. The stringed-pole double-truss support device based on structural steel with feedback function according to claim 9, characterized in that: The detection mechanism (6) includes a pressure sensor (61) and a horizontal sensor (62). The pressure sensor (61) is fastened to the H-shaped steel frame (11). The pressure sensor (61) is located at the fixed point between the foundation pit (7) and the H-shaped steel frame (11). The horizontal sensor (62) is fastened to the support frame (13).

Images