Old community side slope steel structure protection structure

Abstract

The invention relates to an old community side slope steel structure protection structure, and relates to the technical field of side slope protection, the protection structure comprises a composite barrier plate which is rotatably arranged, the composite barrier plate is formed by compounding an outer layer, a middle layer and an inner layer, and a supporting mechanism for carrying out telescopic inclined supporting on the composite barrier plate; the supporting mechanism comprises a first supporting rod, a second supporting rod, a connecting sleeve and a buffering assembly. When a falling object on a slope impacts on the composite barrier plate, the impact force of the falling object is dispersed by the corrugated steel plate on the outer layer and then is partially absorbed by the middle layer, and meanwhile, silica gel in the middle layer flows to trigger the hydrophobic guide plate on the inner layer to accelerate drainage, so that the lateral load of hydrostatic pressure on the composite barrier plate is reduced; and meanwhile, the composite blocking plate is buffered through the buffering assembly under the impact force effect of the falling object, so that the probability that the soil blocking plate is damaged by the falling object on the side slope is reduced, and the decibel value of noise generated when the falling object collides with the soil blocking plate is further reduced.

Description

Technical Field

[0001] This application relates to the technical field of slope protection, and particularly to a steel structure protection structure for slopes in old residential areas. Background Art

[0002] A steel structure protection structure for slopes refers to an engineering protection system mainly constructed with steel materials for stabilizing slopes and preventing geological disasters. Its core is to form a flexible or rigid support structure through steel components (such as wire rope nets, steel columns, anchor bolts, etc.) to limit the displacement of slope rock and soil masses or intercept falling rocks, ensuring slope safety.

[0003] As a mountain city, many residential buildings in Chongqing are built next to slopes. Among them, the original brick walls of many old residential areas have cracked and loosened locally due to years of disrepair, losing their original protection function and being unable to effectively intercept falling objects. Currently, the construction of the steel structure protection structure for slopes in old residential areas mainly involves fixedly installing multiple groups of columns between the residential building and the slope, installing crossbars between the multiple groups of columns to form a support frame, then fixedly installing a steel shed above the support frame to prevent the upper soil, stones or sundries from falling onto the ground between the residential building and the slope. At the same time, a retaining plate is fixedly installed on the side close to the slope to block the soil, stones or sundries falling from the slope.

[0004] However, due to the hard impact between the retaining plate and the falling objects on the slope to intercept the falling objects on the slope, when the mass of the falling objects is relatively large, it is easy to cause a large impact on the retaining plate and damage the retaining plate. At the same time, because it is close to the residential building, when the falling objects impact the retaining plate, it will generate a relatively large noise, thereby reducing the practicability of the steel structure protection structure for slopes in old residential areas. Summary of the Invention

[0005] In order to solve the above defects in the prior art, this application provides a steel structure protection structure for slopes in old residential areas to reduce the damage probability of the retaining plate by slope falling objects and simultaneously reduce the noise decibel value generated when the falling objects impact the retaining plate.

[0006] A steel structure protection structure for slopes in old residential areas provided by this application adopts the following technical solutions: A steel structure protection structure for slopes in old residential areas includes a composite blocking plate rotatably arranged on the side of the support frame close to the slope and used to block the slope falling objects from entering the steel shed. The composite blocking plate is composed of an outer layer, a middle layer and an inner layer. The outer layer is made of corrugated steel plate, the middle layer is made of honeycomb aluminum core filled with high-damping silica gel, and the inner layer is made of a hydrophobic diversion mesh plate. The outer layer is located on the side close to the slope. Multiple groups of support mechanisms for telescopically bracing the composite blocking plate are arranged on the support frame. The support mechanisms include: The first support rod, and the first support rod is hingedly arranged on the support frame; The second support rod, and the second support rod is hingedly arranged on the composite baffle; The connecting sleeve, which is used to connect the first support rod and the second support rod, and both the first support rod and the second support rod are slidably arranged in the connecting sleeve; The buffer assembly, which is arranged in the connecting sleeve and is respectively connected to the first support rod and the second support rod. The buffer assembly is used to buffer the sliding of the first support rod and the second support rod in the connecting sleeve. When the first support rod and the second support rod slide in the connecting sleeve, the composite baffle rotates.

[0007] By adopting the above technical solutions, when the falling objects on the slope impact the composite baffle, the impact force of the falling objects is dispersed by the corrugated steel plate on the outer layer, and then partially absorbed by the middle layer. At the same time, the silicone in the middle layer flows to trigger the hydrophobic diversion plate in the inner layer to accelerate drainage, thereby reducing the lateral load of the hydrostatic pressure on the composite baffle and improving the service life of the composite baffle; at the same time, the composite baffle is buffered by the buffer assembly under the action of the impact force of the falling objects, so that the first support rod and the second support rod slowly slide in the connecting sleeve. Finally, the rotation of the composite baffle and the buffering of the buffer assembly jointly buffer the impact force of the falling objects, thereby reducing the damage probability of the slope falling objects to the retaining plate and also reducing the noise decibel value generated when the falling objects impact the retaining plate.

[0008] Furthermore, the buffer assembly includes: The first hydraulic damper, which is arranged in the connecting sleeve and the movable end is connected to the first support rod. The first hydraulic damper is used to buffer the sliding of the first support rod and facilitate the reset of the first support rod. The first hydraulic damper is filled with magnetorheological fluid and the viscosity of the magnetorheological fluid is controlled by the control component; The second hydraulic damper, which is arranged in the connecting sleeve and the movable end is connected to the second support rod. The second hydraulic damper is used to buffer the sliding of the second support rod and facilitate the reset of the second support rod. The second hydraulic damper is filled with hydraulic oil and provides a constant supporting force.

[0009] By adopting the above technical solutions, when the falling objects impact the composite baffle, the composite baffle squeezes the second support rod, thereby pushing the first hydraulic damper and the second hydraulic damper to slowly shorten to buffer the rotation of the composite baffle. The control component controls the viscosity of the magnetorheological fluid in the first hydraulic damper, thereby controlling the telescopic speed of the first hydraulic damper. Through the coordinated buffering of the second hydraulic damper and the first hydraulic damper, the flexible energy dissipation of the composite baffle is realized.

[0010] Further, the control component includes: A pressure sensor, which is arranged on the second hydraulic damper and used to detect the pressure value of the second support rod on the second hydraulic damper; An electromagnetic coil, which is arranged outside the first hydraulic damper and used to generate a magnetic field, and the viscosity of the magnetorheological fluid in the first hydraulic damper changes with the change of the magnetic field; A controller, which is arranged on the connecting sleeve and electrically connected to the pressure sensor. The controller adjusts the intensity of the magnetic field generated by the electromagnetic coil according to the pressure value detected by the pressure sensor. The greater the pressure value detected by the pressure sensor, the stronger the magnetic field generated by the electromagnetic coil; A power supply component, which is arranged on the connecting sleeve and used to provide power for the electromagnetic coil, the controller and the pressure sensor.

[0011] By adopting the above technical solution, the pressure value of the composite baffle on the second support rod is detected by the pressure sensor, and the controller adjusts the current value of the power supply component to the electromagnetic coil according to the detected value of the pressure sensor, thereby controlling the viscosity of the magnetorheological fluid, and then switching between the flexible or rigid mode according to the impact force of the falling object on the composite baffle, so that the system can adapt to different intensities of impact, and further improves the blocking effect of the composite baffle on the falling object.

[0012] Further, a reinforcing rib frame for reducing the deformation of the composite baffle is arranged on the side of the composite baffle away from the slope, and multiple groups of the second support rods are hinged at different positions of the reinforcing rib frame.

[0013] By adopting the above technical solution, multiple groups of the second support rods support and fix the composite baffle through the reinforcing rib frame, thereby increasing the contact area with the composite baffle, improving the support and fixation effect on the composite baffle, and at the same time reducing the probability of deformation of the composite baffle.

[0014] Further, a hydrophobic coating is sprayed on the inner layer surface, and multiple groups of water passing meshes are arranged inside the inner layer. The accumulated water in the composite baffle enters the inner layer under the action of gravity or the extrusion of the middle layer. The inner layer is communicated with the drain pipe through a flange interface and discharges the internal accumulated water into the municipal drainage system.

[0015] By adopting the above technical solution, when there is no external force, the accumulated water in the composite baffle flows into the inner layer through the meshes, and then the internal accumulated water is quickly discharged through the drain pipe. When a falling object impacts the composite baffle, the silica gel in the middle layer deforms under the action of the impact force, and then the accumulated water in the middle layer is quickly squeezed into the inner layer and discharged through the drain pipe, thereby reducing the lateral load of the hydrostatic pressure on the composite baffle and improving the service life of the composite baffle.

[0016] Further, the steel shed is inclined, and the height on the side close to the slope is lower than that on the side far from the slope. A discharge port for facilitating the discharge of impurities on the steel shed is provided between the composite baffle and the top of the steel shed. A horizontal block for preventing falling objects from entering the steel shed through the discharge port is inclined at the bottom of the composite baffle.

[0017] By adopting the above technical solution, the steel shed is convenient for blocking impurities falling from the residential building. At the same time, by inclining the steel shed, the impurities on the steel shed are discharged from the discharge port under the action of gravity, and the horizontal block prevents falling objects from entering the steel shed through the discharge port, thereby reducing the impurity content on the steel shed.

[0018] Further, a reinforcement wall is vertically arranged on the side of the slope close to the residential building. The top of the reinforcement wall is flush with the top of the steel shed. A retaining plate for preventing falling objects decelerated by the composite baffle from entering the support frame is arranged on the side of the support frame close to the reinforcement wall. A slag discharge ditch is arranged at the bottom between the retaining plate and the reinforcement wall.

[0019] By adopting the above technical solution, the reinforcement wall enhances the strength of the bottom of the slope and reduces the probability of slope collapse. At the same time, the reinforcement wall and the retaining plate form a passage for facilitating falling objects to fall into the slag discharge ditch, reducing the probability of falling objects entering the support frame.

[0020] Further, a slag retaining net for blocking and decelerating falling objects above is arranged between the retaining plate and the reinforcement wall. A guiding block for guiding falling objects onto the slag retaining net is arranged on the reinforcement wall and above the slag retaining net. The slag retaining net allows falling objects with a diameter smaller than the mesh diameter of the slag retaining net to pass through. The slag retaining net is inclined, and the height on the side close to the reinforcement wall is lower than that on the side far from the reinforcement wall. The slag retaining net has a certain elasticity.

[0021] By adopting the above technical solution, the falling objects above the retaining plate and the reinforcement wall fall under the action of gravity after being decelerated by the composite baffle. The falling objects are guided onto the slag retaining net through the guiding block, and after being decelerated and intercepted by the slag retaining net, they fall into the slag discharge ditch at a lower speed, reducing the impact force on the slag discharge ditch and the decibel value of the impact sound.

[0022] Further, an adjusting assembly for adjusting the inclination angle of the slag retaining net is arranged on the retaining plate. Increasing the inclination angle of the slag retaining net is convenient for discharging the falling objects on the slag retaining net. The adjusting assembly includes: A sliding block, which is vertically slidably arranged on the retaining plate. The side of the slag retaining net close to the retaining plate is fixedly connected to the sliding block; A connecting rope, one end of which is arranged on the sliding block and is used to drive the sliding block to slide upward; A steering wheel, which is arranged on the support frame. The connecting rope is connected to the composite baffle after being turned by the steering wheel; A limiting rope is arranged on the support frame and fixedly connected to the side of the composite baffle away from the slope. The limiting rope is used to prevent the composite baffle in its original position from rotating towards the slope side.

[0023] By adopting the above technical solution, when the falling object impacts the composite baffle, the impact force causes the composite baffle to rotate by a certain angle. Then, through the connecting rope and the steering wheel, the sliding block is driven to move upward, facilitating the increase of the inclination angle of the slag retaining net and quickly discharging the impurities in the slag retaining net. At the same time, the impact force of the falling object on the slag retaining net causes the sliding block to slide downward, facilitating the balance of part of the impact force of the falling object on the composite baffle. When the composite baffle is in its original position, the pulling force of the limiting rope reduces the pulling force of the connecting rope on the second support rod.

[0024] Furthermore, a retaining wall for blocking the falling objects above the slope is arranged on the side of the slope close to the original brick wall.

[0025] By adopting the above technical solution, the retaining wall blocks the falling objects above the slope and also reduces the probability of the original brick wall being damaged and falling onto the slope.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the falling object on the slope impacts the composite baffle, the impact force of the falling object is dispersed by the corrugated steel plate on the outer layer and then partially absorbed by the middle layer. At the same time, the flow of the silica gel in the middle layer triggers the hydrophobic diversion plate in the inner layer to accelerate drainage, thereby reducing the lateral load of the hydrostatic pressure on the composite baffle and improving the service life of the composite baffle. At the same time, under the action of the impact force of the falling object, the composite baffle compresses the first hydraulic damper and the second hydraulic damper, causing the first support rod and the second support rod to slide in the connecting sleeve. Finally, through the rotation of the composite baffle, the shortening of the first hydraulic damper, and the shortening of the second hydraulic damper, the impact force of the falling object is buffered together, reducing the damage probability of the slope falling object to the retaining plate and also reducing the noise decibel value generated when the falling object impacts the retaining plate.

[0027] 2. The falling speed of the falling object is reduced by the slag retaining net, thereby reducing the damage probability of the falling object to the slag discharge channel and also reducing the decibel value of the sound generated during the impact. When the composite baffle rotates under the action of the impact force of the falling object, the inclination angle of the slag retaining net is increased by the connecting rope, facilitating the rapid discharge of the falling objects on the slag retaining net. At the same time, the impact force of the falling object on the slag retaining net facilitates the rapid reset of the composite baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the steel structure protection structure for the slope of the old community in the present application; Figure 2 is the top view of the present application; Figure 3 is Figure 2 the schematic cross-sectional view taken along line A-A in Figure 4 is Figure 3 the enlarged schematic view of part B in Figure 5 is Figure 3 the enlarged schematic view of part C in

[0029] Reference numerals: 1, composite baffle; 11, outer layer; 12, middle layer; 13, inner layer; 131, drain pipe; 14, reinforcing rib frame; 15, cross block; 2, support mechanism; 21, first support rod; 22, second support rod; 23, connecting sleeve; 3, buffer assembly; 31, first hydraulic damper; 32, second hydraulic damper; 4, control assembly; 41, electromagnetic coil; 42, power supply component; 5, support frame; 51, steel shed; 52, reinforcement wall; 521, guide block; 53, retaining plate; 54, slag discharge ditch; 6, slag retaining net; 7, adjustment assembly; 71, sliding block; 72, connecting rope; 73, steering wheel; 74, limiting rope; 8, enclosure wall; 9, brick wall. Detailed implementation manners

[0030] The following further describes the present application in detail in conjunction with the attached Figures 1 - 5 drawings.

[0031] The embodiment of the present application discloses a steel structure protection structure for the slope of an old residential community.

[0032] Referring to Figure 1 and Figure 2 , a steel structure protection structure for the slope of an old residential community includes a composite baffle 1 rotatably arranged on the side of the support frame 5 close to the slope and used to block the falling objects on the slope from entering the steel shed 51. The composite baffle 1 is composed of an outer layer 11, a middle layer 12 and an inner layer 13. The outer layer 11 is made of corrugated steel plate, the middle layer 12 is filled with high-damping silica gel using honeycomb aluminum core, and the inner layer 13 is made of a hydrophobic diversion net plate. The outer layer 11 is located on the side close to the slope, and multiple groups of support mechanisms 2 for telescopically supporting the composite baffle 1 are arranged on the support frame 5.

[0033] Referring to Figure 3, the outer layer 11 is made of corrugated steel plates. When the composite baffle 1 is in place, the corrugation direction of the corrugated steel plates on the side close to the slope is consistent with the slope inclination, so as to attenuate the impact force of the falling objects on the composite baffle 1; the middle layer 12 is made of honeycomb aluminum core filled with high-damping silica gel. When the falling objects impact the outer layer 11 and the impact force is attenuated by the outer layer 11, the middle layer 12 is extruded. The energy is dissipated through the compression deformation of the honeycomb aluminum plates and the flow of silica gel, further reducing the impact force of the falling objects; the inner layer 13 is made of a hydrophobic diversion mesh plate. There are multiple groups of mesh holes for water to pass through inside the inner layer 13, and the diameter of the mesh holes is less than 5 mm; in order to improve the hydrophobicity of the inner layer 13, a hydrophobic coating is sprayed on the surface of the inner layer 13. The bottom of the inner layer 13 is connected to the drain pipe 131 through a flange interface and drains the accumulated water inside the inner layer 13 into the municipal drainage system, quickly discharging the infiltrated water inside the composite baffle 1 through the inner layer 13 and reducing the hydrostatic pressure.

[0034] Refer to Figure 3 , specifically, the impact force of the falling objects is dispersed by the corrugated steel plates of the outer layer 11, and then partially absorbed by the middle layer 12. At the same time, the flow of silica gel inside the middle layer 12 triggers the hydrophobic diversion plate of the inner layer 13 to accelerate drainage, ultimately reducing the probability of damage caused by the impact of the falling objects on the composite baffle 1, and at the same time reducing the decibel value of the impact noise; the composite baffle 1 of this embodiment is sequentially connected and locked by bolts for the outer layer 11, the middle layer 12 and the inner layer 13. At the same time, since most of the slope falling objects occur in heavy rain weather, rainwater is easily infiltrated into the composite baffle 1. Through the connection between the inner layer 13 and the drain pipe 131, the infiltrated water inside the composite baffle 1 is discharged in time. At the same time, when the impact force of the falling objects on the composite baffle 1 squeezes the silica gel and accelerates the drainage of the inner layer 13, the lateral load of the hydrostatic pressure on the composite baffle 1 is reduced, and the service life of the composite baffle 1 is improved.

[0035] Refer to Figure 3 and Figure 4 , the support mechanism 2 is used to provide telescopic inclined support for the composite baffle 1, so that the composite baffle 1 can rotate under the action of a large impact force, so as to assist the composite baffle 1 to relieve pressure, reduce the damage probability of the composite baffle 1 and reduce the decibel value of the noise generated during impact. The support mechanism 2 includes a first support rod 21, a second support rod 22 and a connecting sleeve 23. The first support rod 21 is hingedly installed on the support frame 5, and the second support rod 22 is hingedly installed on the composite baffle 1; the connecting sleeve 23 is used to connect the first support rod 21 and the second support rod 22, and both the first support rod 21 and the second support rod 22 are slidably installed in the connecting sleeve 23; when the first support rod 21 and the second support rod 22 slide in the connecting sleeve 23, it is convenient for the composite baffle 1 to rotate on the support frame 5.

[0036] Refer to Figure 4, the support mechanism 2 further includes a buffer assembly 3. The buffer assembly 3 is arranged inside the connecting sleeve 23 and is used to buffer the sliding of the first support rod 21 and the second support rod 22 inside the connecting sleeve 23. The buffer assembly 3 includes a first hydraulic damper 31 and a second hydraulic damper 32. The first hydraulic damper 31 is fixedly installed inside the connecting sleeve 23, and the movable end of the first hydraulic damper 31 is connected to the first support rod 21. The first hydraulic damper 31 is used to buffer the sliding of the first support rod 21. When the force between the first support rod 21 and the first hydraulic damper 31 is less than the acting force of the return spring inside the first hydraulic damper 31, the first hydraulic damper 31 pushes the first support rod 21 to slide and reset relative to the connecting sleeve 23. Wherein, the first hydraulic damper 31 is filled with magnetorheological fluid, and the first hydraulic damper 31 controls the viscosity of the magnetorheological fluid through the control assembly 4, thereby adjusting the telescopic speed of the first hydraulic damper 31.

[0037] Refer to Figure 4 , the second hydraulic damper 32 is fixedly installed inside the connecting sleeve 23, and the movable end of the second hydraulic damper 32 is connected to the second support rod 22. The second hydraulic damper 32 is used to buffer the sliding of the second support rod 22. When the force between the second support rod 22 and the second hydraulic damper 32 is less than the acting force of the return spring inside the second hydraulic damper 32, the second hydraulic damper 32 pushes the second support rod 22 to slide and reset relative to the connecting sleeve 23. Wherein, the second hydraulic damper 32 is filled with hydraulic oil to provide a constant supporting force for the second support rod 22.

[0038] Refer to Figure 4 , the control assembly 4 is used to control the viscosity of the magnetorheological fluid inside the first hydraulic damper 31. The control assembly 4 includes a pressure sensor, an electromagnetic coil 41, a controller, and a power supply component 42. The pressure sensor is fixedly installed on the second hydraulic damper 32, and the pressure sensor is used to detect the pressure value of the second support rod 22 on the second hydraulic damper 32. The electromagnetic coil 41 is fixedly installed outside the first hydraulic damper 31, and the electromagnetic coil 41 is used to generate a magnetic field. The viscosity of the magnetorheological fluid inside the first hydraulic damper 31 changes with the change of the magnetic field. The controller is fixedly installed on the connecting sleeve 23, and the controller is electrically connected to the pressure sensor. The controller adjusts the intensity of the magnetic field generated by the electromagnetic coil 41 according to the pressure value detected by the pressure sensor. The greater the pressure value detected by the pressure sensor, the stronger the magnetic field generated by the electromagnetic coil 41. The power supply component 42 is fixedly installed inside the connecting sleeve 23, and the power supply component 42 is used to provide power for the electromagnetic coil 41, the controller, and the pressure sensor. In this embodiment, the electromagnetic coil 41 is only started after the pressure value detected by the pressure sensor is greater than a certain value, and is divided into multiple stages according to the detected pressure value, and each stage corresponds to a magnetic field intensity value generated by the electromagnetic coil 41 respectively.

[0039] Refer toFigure 3 and Figure 4 Specifically, when the impact force of the falling object on the composite baffle 1 is small, the magnetorheological fluid in the first hydraulic damper 31 maintains a low viscosity, so that the second hydraulic damper 32 and the first hydraulic damper 31 cooperate to buffer and achieve flexible energy dissipation; when the impact force of the falling object on the composite baffle 1 is large, the magnetorheological fluid in the first hydraulic damper 31 maintains a high viscosity, so that the first hydraulic damper 31 is transformed into a rigid support, forcing the impact energy to be concentrated and absorbed by the second hydraulic damper 32, and finally realizing the rapid consumption of a large amount of impact energy. The anti-overturning property of the composite baffle 1 is enhanced through rigid support; through the switching of flexible or rigid modes, the system can adapt to impacts of different intensities, thereby improving the blocking effect of the composite baffle 1 on the falling object.

[0040] Refer to Figure 3 , a reinforcing rib frame 14 is fixedly installed on the side of the composite baffle 1 away from the slope. The reinforcing rib frame 14 is used to reduce the probability of deformation of the composite baffle 1. Multiple groups of second support rods 22 are hinged at different positions of the reinforcing rib frame 14 to facilitate better support and fixation of the composite baffle 1.

[0041] Refer to Figure 3 , the steel shed 51 is inclinedly installed on the support frame 5. The height of the steel shed 51 on the side close to the slope is lower than the height on the side away from the slope. A discharge port for discharging impurities on the steel shed 51 is provided between the bottom of the composite baffle and the top of the steel shed 51; a cross block 15 is inclinedly arranged at the bottom of the composite baffle 1. The cross block 15 is used to prevent the falling object from entering the steel shed 51 through the discharge port.

[0042] Refer to Figure 3 and Figure 5 , a reinforcement wall 52 is vertically built with bricks on the side of the slope close to the residential building. The top of the reinforcement wall 52 is flush with the top of the steel shed 51. The reinforcement wall 52 enhances the strength of the bottom of the slope and reduces the probability of slope collapse; a retaining plate 53 is arranged on the side of the support frame 5 close to the reinforcement wall 52. The retaining plate 53 is used to prevent the falling object after the composite plate decelerates from entering the support frame 5. A slag discharge ditch 54 is opened at the bottom between the retaining plate 53 and the reinforcement wall 52 to discharge the falling objects on the slope or the steel shed 51 through the slag discharge ditch 54.

[0043] Refer to Figure 3 and Figure 5, a slag retaining net 6 is arranged between the retaining plate 53 and the reinforcement wall 52. The slag retaining net 6 is used to block and slow down the falling objects from above. The slag retaining net 6 is close to the retaining plate 53, and there is a certain distance between the slag retaining net 6 and the reinforcement wall 52. A guiding block 521 is arranged on the reinforcement wall 52 and above the slag retaining net 6. The guiding block 521 guides the falling objects close to the reinforcement wall 52 to the slag retaining net 6; the slag retaining net 6 allows the falling objects with a diameter smaller than the mesh diameter of the slag retaining net 6 to pass through. The initial position of the slag retaining net 6 is inclined, and the height on the side close to the reinforcement wall 52 is lower than the height on the side far from the reinforcement wall 52. Thus, some of the falling objects on the slag retaining net 6 roll off the slag retaining net 6 under the action of gravity. At the same time, the slag retaining net 6 has a certain elasticity.

[0044] Refer to Figure 5 , specifically, when the diameter of the falling object is smaller than the mesh diameter of the slag retaining net 6, the falling object drops onto the slag retaining net 6, and the falling speed of the falling object is reduced by the slag retaining net, and then the falling object passes through the mesh of the slag retaining net 6 and finally drops into the slag discharge ditch 54 at a lower speed; when the diameter of the falling object is greater than or equal to the mesh diameter of the slag retaining net 6, the falling object drops onto the slag retaining net 6, and the falling speed of the falling object is reduced by the slag retaining net, and then the falling object rolls towards the side close to the reinforcement wall 52 under the action of the inclined slag retaining net 6 and finally drops into the slag discharge ditch 54 through the gap between the slag retaining net 6 and the reinforcement wall 52.

[0045] Refer to Figure 3 and Figure 5, an adjusting assembly 7 for adjusting the inclination angle of the slag retaining net 6 is provided on the retaining plate 53. Increasing the inclination angle of the slag retaining net 6 facilitates the discharge of the falling objects on the slag retaining net 6. The adjusting assembly 7 includes a sliding block 71, a connecting rope 72, a steering wheel 73 and a limiting rope 74. The sliding block 71 is slidably installed on the retaining plate 53 in the vertical direction, and one side of the slag retaining net 6 close to the retaining plate 53 is fixedly connected to the sliding block 71; when the sliding block 71 slides upward, it drives one side of the slag retaining net 6 close to the retaining plate 53 to move upward, while the position of the other side of the slag retaining net 6 far from the retaining plate 53 remains unchanged. Eventually, the slag retaining net 6 extends a certain distance and at the same time increases the inclination angle of the slag retaining net 6, so as to facilitate the rapid discharge of the falling objects on the slag retaining net 6; one end of the connecting rope 72 is fixedly installed on the sliding block 71, and the connecting rope 72 is used to drive the sliding block 71 to slide upward; the steering wheel 73 is fixedly installed on the support frame 5, and the connecting rope 72 is connected to the composite baffle 1 after turning through the steering wheel 73. In this way, when the falling object hits the composite baffle 1 and causes the composite baffle 1 to rotate, the rotating composite baffle 1 drives the connecting rope 72 to move, and finally the inclination angle of the slag retaining net 6 is increased; at the same time, when the composite baffle 1 resets, due to the self-weight of the sliding block 71 and the acting force of the slag retaining net 6 on the sliding block 71, the sliding block 71 is driven to reset; one end of the limiting rope 74 is fixedly installed on the support frame 5, and the other end of the limiting rope 74 is fixedly installed on the side of the composite baffle 1 far from the slope. When the composite baffle 1 is in its original position, the limiting rope 74 is taut, and the limiting rope 74 is used to prevent the composite baffle 1 in its original position from rotating towards the side close to the slope; when the composite baffle 1 is in its original position, due to the pulling of the limiting rope 74, the pulling force of the connecting rope 72 on the second support rod 22 is reduced.

[0046] Refer to Figure 3 and Figure 5 , after the falling object hits the composite baffle 1, the impact force causes the composite baffle 1 to rotate a certain angle, and then drives the sliding block 71 to move upward through the connecting rope 72, facilitating the increase of the inclination angle of the slag retaining net 6 and quickly discharging the impurities in the slag retaining net 6; at the same time, when there are more falling objects, the first batch of falling objects are stopped by the composite baffle 1, and then the composite baffle 1 rotates a certain angle. The stopped falling objects fall onto the slag retaining net 6, and the impact force of the falling objects on the slag retaining net 6 causes the sliding block 71 to slide downward, and then a resetting force is applied to the composite baffle 1 through the connecting rope 72, so as to balance part of the impact force of the subsequent falling objects on the composite baffle 1, and thus reduce the acting force of a large number of falling objects on the second support rod 22.

[0047] Refer to Figure 1, in order to reduce the probability of foreign objects entering the slope, a retaining wall 8 is provided on one side of the slope close to the original brick wall 9. The retaining wall 8 blocks the falling objects above the slope, and at the same time reduces the probability of the original brick wall 9 being damaged and falling onto the slope. The retaining wall 8 in this embodiment is a steel plate wall cast and installed in the slope. At the same time, a diagonal brace for supporting the steel plate wall is provided on the side of the steel plate wall close to the composite baffle 1.

[0048] The working principle of the embodiment of this application is as follows: When the falling object on the slope impacts the composite baffle 1, the impact force of the falling object is dispersed by the corrugated steel plate of the outer layer 11, and then partially absorbed by the middle layer 12. At the same time, the silicone in the middle layer 12 flows to trigger the hydrophobic diversion plate of the inner layer 13 to accelerate drainage, thereby reducing the lateral load of the hydrostatic pressure on the composite baffle 1 and increasing the service life of the composite baffle 1. At the same time, the composite baffle 1 compresses the first hydraulic damper 31 and the second hydraulic damper 32 under the action of the impact force of the falling object, so that the first support rod 21 and the second support rod 22 slide in the connecting sleeve 23. Finally, the impact force of the falling object is buffered through the rotation of the composite baffle 1, the shortening of the first hydraulic damper 31, and the shortening of the second hydraulic damper 32, thereby reducing the damage probability of the slope falling object to the retaining plate 53 and also reducing the noise decibel value generated when the falling object impacts the retaining plate 53.

[0049] The above are all the preferred embodiments of this application. The protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A steel structure protection structure for the slope of an old community, characterized in that: Comprising a composite baffle (1) rotatably arranged on the side of the support frame (5) close to the slope and used to prevent slope falling objects from entering the steel shed (51), the composite baffle (1) is composed of an outer layer (11), a middle layer (12) and an inner layer (13). The outer layer (11) is made of corrugated steel plate, the middle layer (12) is made of honeycomb aluminum core filled with high damping silica gel, and the inner layer (13) is made of a hydrophobic diversion net plate. The outer layer (11) is located on the side close to the slope. A plurality of support mechanisms (2) for telescopically supporting the composite baffle (1) obliquely are arranged on the support frame (5). The support mechanism (2) includes: A first support rod (21), the first support rod (21) is hinged to the support frame (5); A second support rod (22), the second support rod (22) is hinged to the composite baffle (1); A connecting sleeve (23), the connecting sleeve (23) is used to connect the first support rod (21) and the second support rod (22), and both the first support rod (21) and the second support rod (22) are slidably arranged in the connecting sleeve (23); A buffer assembly (3), the buffer assembly (3) is arranged in the connecting sleeve (23) and is respectively connected to the first support rod (21) and the second support rod (22). The buffer assembly (3) is used to buffer the sliding of the first support rod (21) and the second support rod (22) in the connecting sleeve (23). When the first support rod (21) and the second support rod (22) slide in the connecting sleeve (23), the composite baffle (1) rotates.

2. The steel structure protection structure for the slope of old residential areas according to claim 1, wherein: The buffer assembly (3) includes: A first hydraulic damper (31), the first hydraulic damper (31) is arranged in the connecting sleeve (23) and its movable end is connected to the first support rod (21). The first hydraulic damper (31) is used to buffer the sliding of the first support rod (21) and facilitate the reset of the first support rod (21). The first hydraulic damper (31) is filled with magnetorheological fluid and the viscosity of the magnetorheological fluid is controlled by a control component (4); A second hydraulic damper (32), the second hydraulic damper (32) is arranged in the connecting sleeve (23) and its movable end is connected to the second support rod (22). The second hydraulic damper (32) is used to buffer the sliding of the second support rod (22) and facilitate the reset of the second support rod (22). The second hydraulic damper (32) is filled with hydraulic oil and provides a constant supporting force.

3. The steel structure protection structure for the slope of old residential areas according to claim 2, characterized in that: The control component (4) includes: A pressure sensor, the pressure sensor is arranged on the second hydraulic damper (32) and is used to detect the pressure value of the second support rod (22) on the second hydraulic damper (32); An electromagnetic coil (41), the electromagnetic coil (41) is arranged outside the first hydraulic damper (31) and is used to generate a magnetic field. The viscosity of the magnetorheological fluid in the first hydraulic damper (31) changes with the change of the magnetic field; A controller, which is arranged on the connecting sleeve (23) and electrically connected to the pressure sensor. The controller adjusts the intensity of the magnetic field generated by the electromagnetic coil (41) according to the pressure value detected by the pressure sensor. The greater the pressure value detected by the pressure sensor, the stronger the magnetic field generated by the electromagnetic coil (41). A power supply component (42), which is arranged on the connecting sleeve (23) and used to supply power to the electromagnetic coil (41), the controller and the pressure sensor.

4. The steel structure protection structure for the slope of old residential areas according to claim 1, characterized in that: On the side of the composite baffle (1) away from the slope, there is a reinforcing rib frame (14) for reducing the deformation of the composite baffle (1). Multiple groups of the second support rods (22) are hingedly arranged at different positions of the reinforcing rib frame (14).

5. The steel structure protection structure for the slope of old residential areas according to claim 1, wherein: A hydrophobic coating is sprayed on the surface of the inner layer (13). Multiple groups of water passing meshes are arranged inside the inner layer (13). The accumulated water in the composite baffle (1) enters the inner layer (13) under the action of gravity or the extrusion of the middle layer (12). The inner layer (13) is communicated with the drain pipe (131) through a flange interface and discharges the internal accumulated water into the municipal drainage system.

6. The steel structure protection structure for the slope of old residential areas according to claim 1, wherein: The steel shed (51) is inclined, and the height of the side close to the slope is lower than the height of the side away from the slope. A discharge port for discharging impurities on the steel shed (51) is opened between the composite baffle (1) and the top of the steel shed (51). A cross block (15) for preventing falling objects from entering the steel shed (51) from the discharge port is inclined at the bottom of the composite baffle (1).

7. A steel structure protection structure for the slope of an old residential area according to claim 1, characterized in that: A reinforcement wall (52) is vertically arranged on the side of the slope close to the residential building. The top of the reinforcement wall (52) is flush with the top of the steel shed (51). A retaining plate (53) for preventing the falling objects decelerated by the composite baffle (1) from entering the support frame (5) is arranged on the side of the support frame (5) close to the reinforcement wall (52). A slag discharge ditch (54) is arranged at the bottom between the retaining plate (53) and the reinforcement wall (52).

8. A steel structure protection structure for the slope of an old residential area according to claim 7, characterized in that: A slag retaining net (6) for blocking and decelerating the falling objects above is arranged between the retaining plate (53) and the reinforcement wall (52). A guiding block (521) for guiding the falling objects onto the slag retaining net (6) is arranged on the reinforcement wall (52) and on the slag retaining net (6). The slag retaining net (6) allows the falling objects with a diameter smaller than the mesh diameter of the slag retaining net (6) to pass through. The slag retaining net (6) is inclined, and the height of the side close to the reinforcement wall (52) is lower than the height of the side away from the reinforcement wall (52). The slag retaining net (6) has a certain elasticity.

9. The steel structure protection structure for the slope of an old residential area according to claim 8, characterized in that: An adjusting assembly (7) for adjusting the inclination angle of the slag retaining net (6) is arranged on the retaining plate (53). Increasing the inclination angle of the slag retaining net (6) facilitates discharging the falling objects on the slag retaining net (6). The adjusting assembly (7) includes: A sliding block (71), which is vertically slidably arranged on the retaining plate (53). The side of the slag retaining net (6) close to the retaining plate (53) is fixedly connected to the sliding block (71). A connecting rope (72), one end of which is arranged on the sliding block (71) and used to drive the sliding block (71) to slide upward. Steering wheel (73), the steering wheel (73) is arranged on the support frame (5), and the connecting rope (72) is connected to the composite baffle (1) after turning through the steering wheel (73); Limit rope (74), the limit rope (74) is arranged on the support frame (5) and fixedly connected to the side of the composite baffle (1) away from the slope, and the limit rope (74) is used to prevent the composite baffle (1) in place from rotating towards the side close to the slope.

10. A steel structure protection structure for the slope of an old community according to claim 1, characterized in that: A retaining wall (8) for blocking falling objects above the slope is arranged on the side of the slope close to the original brick wall (9).

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