High-altitude corridor support with variable rigidity

Abstract

The invention discloses a rigidity-variable high-altitude corridor support, and relates to the technical anti-seismic field of high-altitude corridor supports, according to the technical scheme, the rigidity-variable high-altitude corridor support comprises an upper supporting plate, a first middle plate, a second middle plate and a lower supporting plate, and further comprises a rotating displacement and buffering mechanism arranged on the upper supporting plate and the first middle plate; the moving displacement and displacement buffering mechanism is arranged on the first middle plate and the second middle plate; the earthquake shear force variable rigid supporting structure is arranged on the second middle plate and the lower supporting plate and used for elastic supporting with variable rigidity under earthquake shear force. The device has the beneficial effects that through the arrangement of the rotating displacement and buffering mechanism, the moving displacement and displacement buffering mechanism and the earthquake shear force variable rigid supporting structure, the position and displacement of the aerial corridor can be allowed to be slightly changed under the conditions of temperature stress, concrete shrinkage and creep and foundation settlement, and the aerial corridor can be buffered and protected; and variable-rigidity earthquake shear support is provided for the corridor.

Description

Technical Field

[0001] The present invention relates to the technical field of earthquake resistance of high-altitude corridor supports, and in particular to a high-altitude corridor support with variable stiffness. Background Art

[0002] The patent with announcement number CN 119616287 A in the prior art discloses a high-altitude corridor support with variable stiffness, comprising: a first mounting steel plate, a second mounting steel plate, and a third mounting steel plate; a first seismic isolation support and a second seismic isolation support, wherein the four corners of the second mounting steel plate are pierced with locking members connected to the third mounting steel plate, and the locking members are provided with shear grooves; the first seismic isolation support and the second seismic isolation support are both used to reduce shock on the high-altitude corridor support to achieve variable stiffness control of the high-altitude corridor support. The present invention constructs a set of multi-level variable stiffness seismic isolation supports. Based on the unique mechanical response mechanism of this multi-level seismic isolation system, when the intensity of the earthquake action shows an increasing trend, the interaction force between the high-altitude corridor and the towers on both sides shows a decreasing trend. This feature significantly improves the seismic toughness and stability of the overall structure in earthquake disasters, and provides a reliable guarantee for the safety performance of high-rise building structures in complex earthquake environments.

[0003] When in use, the device can adjust the support of the seismic isolation bearing under the action of earthquake shear force, thereby adjusting the stiffness of the bearing. The device only considers the impact of earthquake shear force on the use of the bearing, but the bearing should also consider the slight changes in displacement and position caused by temperature stress, concrete shrinkage creep and foundation settlement in daily use and provide a certain buffer. Otherwise, the position and displacement of the corridor and the main structure will be obstructed, which will cause greater additional stress to the corridor, easily causing damage to the main structure of the corridor and reducing the shear strength. Therefore, a high-altitude corridor bearing with variable stiffness is needed to meet the use requirements. Summary of the Invention

[0004] In order to achieve the above-mentioned purpose of the invention and address the above-mentioned technical problems, the present invention provides a high-altitude corridor support with variable stiffness.

[0005] The technical solution includes an upper support plate, a first intermediate plate, a second intermediate plate and a lower support plate, and further includes: Reinforcing ribs are provided in the upper support plate, the first intermediate plate, the second intermediate plate and the lower support plate, and are used to enhance the strength of the upper support plate, the first intermediate plate, the second intermediate plate and the lower support plate; A rotation displacement and buffering mechanism is provided on the upper support plate and the first intermediate plate, and is used for rotation displacement and displacement buffering of the skywalk. The rotation displacement and buffering mechanism includes a rotating ring and an annular seat fixedly provided at the bottom of the upper support plate and the top of the first intermediate plate. The rotating ring is rotatably provided in the annular seat. An upper contact piece and a lower contact piece are fixedly provided at the bottom of the upper support plate and the top of the first intermediate plate, respectively. A rubber buffer seat is fixedly provided on the lower contact piece. A mobile displacement and shift buffer mechanism is provided on the No. 1 middle plate and the No. 2 middle plate, and is used for slight horizontal movement and movement buffering of the sky corridor. The mobile displacement and shift buffer mechanism includes an upper movable seat and a lower movable seat respectively fixedly provided at the bottom of the No. 1 middle plate and the top of the No. 2 middle plate, the upper movable seat being slidably provided on the lower movable seat, a No. 1 support block being fixedly provided on the No. 2 middle plate, a rotating shaft being rotatably provided in the No. 1 support block, a mounting ring being fixedly sleeved on the rotating shaft, and an energy-absorbing torsion spring being fixedly provided on the mounting ring and the No. 1 support block; The earthquake shear force variable rigid support structure is arranged on the second intermediate plate and the lower support plate, and is used for elastic support with variable stiffness under earthquake shear force. The earthquake shear force variable rigid support structure includes a main energy absorbing spring and a main damper fixedly arranged between the second intermediate plate and the lower support plate. The bottom of the second intermediate plate and the top of the lower support plate are respectively fixedly provided with an upper support seat and a lower rigid support seat Preferably, the rotation displacement and buffer mechanism also includes a slot opened in the annular seat, the inner wall of the slot is fixedly provided with a smooth block, the outer wall of the rotating ring is fixedly provided with a smooth contact block, and the smooth contact block is rotatably provided in the slot.

[0006] Preferably, a steel ball movable groove is provided in the annular seat, and a movable steel ball is movably arranged in the steel ball movable groove.

[0007] Preferably, the movement, displacement and shift buffer mechanism further comprises a guide block fixedly arranged at the bottom of the upper moving seat, a guide groove is provided at the top of the lower moving seat, and the guide block is slidably arranged in the guide groove.

[0008] Preferably, a rack is fixedly provided on the bottom of the No. 1 intermediate plate, a gear is fixedly sleeved on the rotating shaft, and the rack and the gear are meshed.

[0009] Preferably, a rotating rod is fixedly provided on the mounting ring, a guide frame is fixedly provided on the No. 2 middle plate, a movable frame is slidingly provided on the guide frame, a No. 1 transverse energy-absorbing spring is fixedly provided on the guide frame and the movable frame, a movable round pin is movably provided in the movable frame, and the tail end of the rotating rod is rotatably provided on the movable round pin.

[0010] Preferably, a guide sleeve is fixedly provided on the bottom of the movable frame, and the guide sleeve is slidably sleeved on the guide frame.

[0011] Preferably, a first lateral damper is horizontally arranged on the first intermediate plate and the second intermediate plate.

[0012] Preferably, a guide bar is fixedly provided on the lower support plate, a slider is slidably provided on the guide bar, a connecting rod is rotatably provided on the slider, a No. 2 support block is fixedly provided on the bottom of the No. 2 intermediate plate, and the other end of the connecting rod is rotatably provided on the No. 2 support block, and the number of the sliders is one group, and a No. 2 lateral energy absorption spring and a No. 2 lateral damper are fixedly provided between the sliders in one group.

[0013] Preferably, a sliding groove is provided on the guide bar, a guide slider is fixedly provided at the bottom of the slider, and the guide slider is slidably provided in the sliding groove.

[0014] The technical solution provided by the embodiment of the present invention has the following beneficial effects: In the present invention, through the setting of the rotation displacement and buffer mechanism, when the position of the aerial corridor changes, the rotating ring will rotate in the annular seat, and the rotation of the rotating ring will drive the rotation of the upper support plate, thereby adapting to the slight position change of the aerial corridor under various stresses, avoiding damage to the structure of the aerial corridor, and the contact resistance between the upper contact piece and the rubber buffer seat is relatively large, which can also play a certain rotation damping and buffering role when the position of the aerial corridor changes.

[0015] In the present invention, through the provision of a displacement and shift buffering mechanism, when the skywalk undergoes slight displacement, the upper movable seat slides within the lower movable seat. The movement of the No. 1 intermediate plate drives the energy-absorbing torsion spring to rotate and compresses or stretches the No. 1 transverse energy-absorbing spring. Part of the stress causing the skywalk's displacement is converted into the torsional force of the energy-absorbing torsion spring and the elastic potential energy of the No. 1 transverse energy-absorbing spring, thereby buffering the skywalk's displacement and enabling the skywalk to move slightly. This displacement is buffered, preventing structural damage to the skywalk.

[0016] In the present invention, through the setting of the earthquake shear variable rigid support structure, when the aerial corridor is subjected to earthquake shear, the earthquake shear will be absorbed by the main energy-absorbing spring and converted into the elastic potential energy of the main energy-absorbing spring, and then under the action of the earthquake shear, it can play an elastic supporting role for the corridor, allowing the corridor to undergo a slight up and down displacement. When the shear reaches a certain level, the upper rigid support seat descends and directly contacts the lower rigid support seat, and the variable elastic support becomes a rigid support, which avoids overload damage to the main energy-absorbing spring. On the other hand, it can improve the support strength and ensure the safety of the corridor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the three-dimensional structure of an embodiment of the present invention.

[0018] Figure 2 This is a schematic structural diagram of the reinforcing ribs and rubber buffer seat according to an embodiment of the present invention.

[0019] Figure 3 It is a structural schematic diagram of the steel ball movable groove and movable steel ball according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic structural diagram of the energy-absorbing torsion spring, the No. 1 lateral energy-absorbing spring, and the rotating rod according to an embodiment of the present invention.

[0021] Figure 5 It is a structural schematic diagram of the guide block and guide groove according to an embodiment of the present invention.

[0022] Figure 6 This is a schematic structural diagram of the lower rigid support seat, the second support block, and the connecting rod according to an embodiment of the present invention.

[0023] Among them, the accompanying drawings are marked as follows: 1, upper support plate; 2, No. 1 middle plate; 3, No. 2 middle plate; 4, lower support plate; 5, reinforcing rib; 6, rotation displacement and buffer mechanism; 61, rotating ring; 62, annular seat; 63, card slot; 64, smooth card block; 65, smooth contact block; 66, steel ball movable groove; 67, movable steel ball; 68, upper contact piece; 69, rubber buffer seat; 610, lower contact piece; 7, mobile displacement and shift buffer mechanism; 71, upper moving seat; 72, lower moving seat; 73, guide block; 74, guide slot; 75, No. 1 support block; 76, rotating shaft; 77, mounting ring; 7 8. Energy-absorbing torsion spring; 79. Rack; 710. Gear; 711. Rotating rod; 712. Guide frame; 713. No. 1 transverse energy-absorbing spring; 714. Movable frame; 715. Movable round pin; 716. Guide sleeve; 717. No. 1 transverse damper; 8. Seismic shear force variable rigid support structure; 81. Main energy-absorbing spring; 82. Main damper; 83. Upper rigid support seat; 84. Lower rigid support seat; 85. No. 2 support block; 86. Guide bar; 87. Slider; 88. Connecting rod; 89. No. 2 transverse energy-absorbing spring; 810. No. 2 transverse damper; 811. Slide; 812. Guide slider. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined as "first", "second" and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0028] Example 1 See also Figures 1 to 6The present invention provides a high-altitude corridor support with variable stiffness, comprising an upper support plate 1, a first intermediate plate 2, a second intermediate plate 3 and a lower support plate 4, and further comprising: reinforcing ribs 5, arranged in the upper support plate 1, the first intermediate plate 2, the second intermediate plate 3 and the lower support plate 4, for improving the strength of the upper support plate 1, the first intermediate plate 2, the second intermediate plate 3 and the lower support plate 4; a rotation displacement and buffering mechanism 6, arranged on the upper support plate 1 and the first intermediate plate 2, for preventing the high-altitude corridor from being damaged by temperature stress, concrete shrinkage creep and foundation settlement. The micro-rotation displacement and displacement buffering, the rotation displacement and buffering mechanism 6 includes a rotating ring 61 and an annular seat 62 fixedly arranged at the bottom of the upper support plate 1 and the top of the No. 1 intermediate plate 2, the rotating ring 61 is rotatably arranged in the annular seat 62, the bottom of the upper support plate 1 and the top of the No. 1 intermediate plate 2 are respectively fixed with an upper contact piece 68 and a lower contact piece 610, a rubber buffer seat 69 is fixedly arranged on the lower contact piece 610, and the upper contact piece 68 and the rubber buffer seat 69 are pressed together; the mobile displacement and shift buffering mechanism 7 is arranged at a The No. 1 middle plate 2 and the No. 2 middle plate 3 are used for the micro-horizontal movement and movement buffering caused by temperature stress, concrete shrinkage creep and foundation settlement of the aerial corridor. The mobile displacement and shift buffering mechanism 7 includes an upper moving seat 71 and a lower moving seat 72 respectively fixed on the bottom of the No. 1 middle plate 2 and the top of the No. 2 middle plate 3. The upper moving seat 71 is slidably set on the lower moving seat 72. The No. 1 middle plate 3 is fixedly provided with a No. 1 support block 75. A rotating shaft 76 is rotatably set in the No. 1 support block 75. A mounting bracket is fixedly sleeved on the rotating shaft 76. The mounting ring 77 is fixedly provided with an energy-absorbing torsion spring 78 on the mounting ring 77 and the No. 1 support block 75; the earthquake shear force variable rigid support structure 8 is provided on the No. 2 middle plate 3 and the lower support plate 4, and is used for elastic support with variable stiffness under earthquake shear force. The earthquake shear force variable rigid support structure 8 includes a main energy-absorbing spring 81 and a main damper 82 fixedly provided between the No. 2 middle plate 3 and the lower support plate 4, and an upper rigid support seat (83) and a lower rigid support seat 84 are fixedly provided on the bottom of the No. 2 middle plate 3 and the top of the lower support plate 4 respectively; When the skywalk changes position, the rotating ring 61 will rotate in the annular seat 62. The rotation of the rotating ring 61 will drive the rotation of the upper support plate 1, thereby adapting to the slight position change of the skywalk under various stresses, avoiding damage to the structure of the skywalk. On the other hand, the upper contact piece 68 rests on the rubber buffer seat 69, which can play a vertical buffering role. The contact resistance between the upper contact piece 68 and the rubber buffer seat 69 is relatively large, which can also play a certain rotation damping buffering role when the skywalk changes position. When the skywalk is slightly displaced, the upper moving seat 71 will slide in the lower moving seat 72. The movement of the No. 1 middle plate 2 will drive the energy-absorbing torsion spring 78 to rotate, and part of the stress that causes the skywalk to shift will be converted into the torsion of the energy-absorbing torsion spring 78, thereby playing a buffering role in the displacement of the skywalk, so that the skywalk has the conditions for slight displacement and buffers the displacement to avoid structural damage to the corridor. When the aerial corridor is subjected to earthquake shear force, the downward movement of the No. 2 middle plate 3 will cause the compression of the main energy-absorbing spring 81. At this time, a part of the earthquake shear force will be absorbed by the main energy-absorbing spring 81 and converted into the elastic potential energy of the main energy-absorbing spring 81 and quickly consumed by the main damper 82. Then, under the action of the earthquake shear force, it can play an elastic supporting role for the corridor, allowing the corridor to undergo a slight up and down displacement. When the shear force reaches a certain level, the upper rigid support seat 83 descends and directly contacts the lower rigid support seat 84. The variable elastic support can be changed to a rigid support to avoid overload damage to the main energy-absorbing spring 81. On the other hand, it can enhance the support strength and ensure the safety of the corridor.

[0029] In the embodiment of the present invention, the rotation displacement and buffer mechanism 6 further includes a slot 63 provided in the annular seat 62, a smooth block 64 being fixedly provided on the inner wall of the slot 63, and a smooth contact block 65 being fixedly provided on the outer wall of the rotating ring 61, the smooth contact block 65 being rotatably provided in the slot 63; the smooth contact block 65 rotates in the slot 63 and contacts the smooth block 64; In order to reduce the lateral rotation resistance of the rotating ring 61, the smooth contact block 65 rotates in the slot 63 and contacts the smooth block 64, which can reduce the lateral rotation resistance of the smooth contact block 65 in the slot 63 and play a longitudinal limiting effect on the upper support plate 1.

[0030] In the embodiment of the present invention, further, a steel ball movable groove 66 is opened in the annular seat 62, and a movable steel ball 67 is movably arranged in the steel ball movable groove 66; In order to reduce the rotation resistance of the bottom of the rotating ring 61, the bottom of the rotating ring 61 directly contacts the movable steel ball 67 to reduce contact friction. When the rotating ring 61 rotates, it drives the movable steel ball 67 to move in the steel ball movable groove 66, thereby reducing the rotation resistance of the bottom of the rotating ring 61.

[0031] In the embodiment of the present invention, the movable displacement and shift buffer mechanism 7 further includes a guide block 73 fixedly arranged at the bottom of the upper movable seat 71, and a guide groove 74 is formed at the top of the lower movable seat 72, and the guide block 73 is slidably arranged in the guide groove 74; In order to play a guiding effect on the movement of the upper movable seat 71. The guide block 73 slides in the guide groove 74 to play a guiding effect on the movement of the upper movable seat 71, avoiding misalignment or separation between the upper movable seat 71 and the lower movable seat 72.

[0032] In the embodiment of the present invention, further, a rack 79 is fixedly provided on the bottom of the first intermediate plate 2, and a gear 710 is fixedly sleeved on the rotating shaft 76, and the rack 79 and the gear 710 are meshed; In order to drive the rotation of the rotating shaft 76, the movement of the first intermediate plate 2 will drive the rack 79 to move, the movement of the rack 79 will drive the gear 710 to rotate, and the rotation of the gear 710 will drive the rotating shaft 76 to rotate.

[0033] In the embodiment of the present invention, further, a rotating rod 711 is fixedly provided on the mounting ring 77, a guide frame 712 is fixedly provided on the second intermediate plate 3, a movable frame 714 is slidably provided on the guide frame 712, a first transverse energy absorbing spring 713 is fixedly provided on the guide frame 712 and the movable frame 714, a movable round pin 715 is movably provided in the movable frame 714, and the tail end of the rotating rod 711 is rotatably provided on the movable round pin 715; In order to improve the buffering effect of the aerial corridor displacement, the rotation of the mounting ring 77 will drive the rotating rod 711 to rotate, and the rotation of the rotating rod 711 will drive the movable round pin 715 to move in the movable frame 714. According to the direction of the corridor displacement, the movable round pin 715 will pull the movable frame 714 to the left or right, thereby compressing the No. 1 transverse energy absorbing spring 713 or stretching the No. 1 transverse energy absorbing spring 713. Part of the stress that causes the aerial corridor displacement will be converted into the elastic potential energy of the No. 1 transverse energy absorbing spring 713 and stored in the No. 1 transverse energy absorbing spring 713, thereby improving the buffering effect of the aerial corridor displacement.

[0034] In the embodiment of the present invention, further, a guide sleeve 716 is fixedly provided at the bottom of the movable frame 714, and the guide sleeve 716 is slidably sleeved on the guide frame 712; In order to guide the movement of the movable frame 714, the guide sleeve 716 slides in the guide frame 712 to guide the movement of the movable frame 714, so that the movable frame 714 can only move on the guide frame 712.

[0035] In the embodiment of the present invention, further, a first transverse damper 717 is transversely disposed on the first intermediate plate 2 and the second intermediate plate 3; In order to prevent the corridor from vibrating after displacement, when the first middle plate 2 moves, the first transverse damper 717 will be stretched, and the energy stored in the energy absorbing torsion spring 78 and the first transverse energy absorbing spring 713 will be quickly consumed by the first transverse damper 717 to prevent the corridor from vibrating.

[0036] In the embodiment of the present invention, further, a guide bar 86 is fixedly provided on the lower support plate 4, a slider 87 is slidably provided on the guide bar 86, a connecting rod 88 is rotatably provided on the slider 87, a second support block 85 is fixedly provided on the bottom of the second intermediate plate 3, and the other end of the connecting rod 88 is rotatably provided on the second support block 85. There is a group of sliders 87, and a second lateral energy absorbing spring 89 and a second lateral damper 810 are fixedly provided between the sliders 87 of the group; In order to enhance the buffering effect against earthquake shear force and change the support rigidity, the second middle plate 3 will drive the second support block 85 to descend at the same time. The descent of the second support block 85 will cause the connecting rod 88 to rotate. The rotation of the connecting rod 88 will squeeze the slider 87 to slide on the guide bar 86. The sliding and approaching of a set of guide bars 86 will compress the second transverse energy-absorbing spring 89. At this time, another part of the earthquake shear force will be absorbed by the second transverse energy-absorbing spring 89 and converted into elastic potential energy of the second transverse energy-absorbing spring 89 and quickly consumed by the second transverse damper 810. Then, under the action of earthquake shear force, it can play an elastic supporting role for the corridor, allowing the corridor to undergo a slight upward and downward displacement. When the shear force reaches a certain level, the upper rigid support seat 83 descends and directly contacts the lower rigid support seat 84, and the variable elastic support is converted into a rigid support. On the one hand, it can avoid damage to the main energy-absorbing spring 81 and the second transverse energy-absorbing spring 89 due to overload, and on the other hand, it can improve the support strength and ensure the safety of the corridor.

[0037] In the embodiment of the present invention, further, a slide groove 811 is provided on the guide bar 86, and a guide slider 812 is fixedly provided at the bottom of the slider 87, and the guide slider 812 is slidably provided in the slide groove 811; In order to play a guiding role in the movement of the slider 87. The guide slider 812 slides in the chute 811 and can play a guiding role in the movement of the slider 87, so that the slider 87 can only move on the guide bar 86.

[0038] Working principle: When the sky corridor undergoes slight position changes due to temperature stress, concrete shrinkage creep, and foundation settlement, the rotating ring 61 will rotate in the annular seat 62. At the same time, the smooth contact block 65 will rotate in the slot 63 and contact the smooth block 64, which can reduce the rotational resistance of the smooth contact block 65 in the slot 63. The rotation of the rotating ring 61 will drive the rotation of the upper support plate 1, thereby adapting to the slight position changes of the sky corridor under various stresses and avoiding damage to the structure of the sky corridor. On the other hand, the upper contact piece 68 rests on the rubber buffer seat 69, which can play a vertical buffering role. The contact resistance between the upper contact piece 68 and the rubber buffer seat 69 is relatively large, which can also play a certain rotational damping buffering role when the sky corridor changes position. When the sky corridor undergoes a slight displacement, the upper movable seat 71 will slide in the lower movable seat 72, and the guide block 73 will slide in the guide groove 74, which can avoid misalignment or separation between the upper movable seat 71 and the lower movable seat 72. When the No. 1 middle plate 2 moves, it will drive the rack 79 to move, and the movement of the rack 79 will drive the gear 710 to rotate. The rotation of the gear 710 will drive the rotating shaft 76 to rotate. The rotation of the rotating shaft 76 will drive the mounting ring 77 to rotate. The rotation of the mounting ring 77 will drive the energy-absorbing torsion spring 78 to rotate. Part of the stress that causes the displacement of the sky corridor will be converted into the torsion of the energy-absorbing torsion spring 78, which can play a buffering role in the displacement of the sky corridor. When the mounting ring 77 rotates, it will drive the rotating rod 711 to rotate. The rotation of the rotating rod 711 will drive the movable round pin 715 to rotate in the movable frame 714. Depending on the direction of the corridor's displacement, the movable round pin 715 pulls the movable frame 714 to the left or right, compressing or stretching the No. 1 transverse energy-absorbing spring 713. This converts a portion of the stress that causes the corridor's displacement into the elastic potential energy of the No. 1 transverse energy-absorbing spring 713, which is then stored within the No. 1 transverse energy-absorbing spring 713. The guide sleeve 716 slides within the guide frame 712, guiding the movement of the movable frame 714 so that the movable frame 714 can only move on the guide frame 712. When the No. 1 intermediate plate 2 moves, the No. 1 transverse damper 717 is stretched. At this time, the energy stored in the energy-absorbing torsion spring 78 and the No. 1 transverse energy-absorbing spring 713 is quickly dissipated by the No. 1 transverse damper 717, preventing vibration of the corridor. The above-mentioned mechanism allows the corridor to have the conditions for slight displacement and cushions the displacement, preventing structural damage to the corridor.When the sky corridor is subjected to earthquake shear force, the downward movement of the No. 2 middle plate 3 will cause the compression of the main energy-absorbing spring 81. At this time, a part of the earthquake shear force will be absorbed by the main energy-absorbing spring 81 and converted into the elastic potential energy of the main energy-absorbing spring 81 and quickly consumed by the main damper 82. When the No. 2 middle plate 3 descends, the No. 2 support block 85 will be driven to descend. The descent of the No. 2 support block 85 will cause the connecting rod 88 to rotate. The rotation of the connecting rod 88 will squeeze the slider 87 to slide on the guide bar 86. A group of guide bars 86 slide and approach each other to compress the No. 2 transverse energy-absorbing spring 89. At this time, another part of the earthquake shear force will be absorbed by the main energy-absorbing spring 81 and converted into the elastic potential energy of the main energy-absorbing spring 81 and quickly consumed by the main damper 82. The force will be absorbed by the No. 2 lateral energy-absorbing spring 89 and converted into elastic potential energy of the No. 2 lateral energy-absorbing spring 89 and quickly consumed by the No. 2 lateral damper 810, and then can play an elastic supporting role for the corridor under the action of earthquake shear force, allowing the corridor to undergo a slight up and down displacement. When the shear force reaches a certain level, the upper rigid support seat 83 descends and directly contacts the lower rigid support seat 84, and the variable elastic support is converted into a rigid support. On the one hand, it can avoid damage to the main energy-absorbing spring 81 and the No. 2 lateral energy-absorbing spring 89 caused by overload, and on the other hand, it can enhance the support strength to ensure the safety of the corridor.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-altitude corridor support with variable stiffness, comprising an upper support plate (1), a first intermediate plate (2), a second intermediate plate (3) and a lower support plate (4), characterized in that: Also includes: Reinforcing ribs (5) are provided in the upper support plate (1), the first intermediate plate (2), the second intermediate plate (3) and the lower support plate (4), and are used to enhance the strength of the upper support plate (1), the first intermediate plate (2), the second intermediate plate (3) and the lower support plate (4); A rotation displacement and buffer mechanism (6) is provided on the upper support plate (1) and the first intermediate plate (2) and is used for rotation displacement and displacement buffering of the sky corridor. The rotation displacement and buffer mechanism (6) comprises a rotation ring (61) and an annular seat (62) fixedly provided at the bottom of the upper support plate (1) and the top of the first intermediate plate (2). The rotation ring (61) is rotatably provided in the annular seat (62). An upper contact piece (68) and a lower contact piece (610) are fixedly provided at the bottom of the upper support plate (1) and the top of the first intermediate plate (2), respectively. A rubber buffer seat (69) is fixedly provided on the lower contact piece (610). A movable displacement and shift buffer mechanism (7) is provided on the No. 1 intermediate plate (2) and the No. 2 intermediate plate (3) and is used for micro-horizontal movement and movement buffering of the sky corridor. The movable displacement and shift buffer mechanism (7) comprises an upper movable seat (71) and a lower movable seat (72) respectively fixedly provided at the bottom of the No. 1 intermediate plate (2) and the top of the No. 2 intermediate plate (3). The upper movable seat (71) is slidably provided on the lower movable seat (72). A No. 1 support block (75) is fixedly provided on the No. 2 intermediate plate (3). A rotating shaft (76) is rotatably provided in the No. 1 support block (75). A mounting ring (77) is fixedly sleeved on the rotating shaft (76). An energy absorbing torsion spring (78) is fixedly provided on the mounting ring (77) and the No. 1 support block (75). An earthquake shear force variable rigid support structure (8) is arranged on the second intermediate plate (3) and the lower support plate (4) and is used for elastic support with variable stiffness under earthquake shear force. The earthquake shear force variable rigid support structure (8) includes a main energy absorbing spring (81) and a main damper (82) fixedly arranged between the second intermediate plate (3) and the lower support plate (4). An upper rigid support seat (83) and a lower rigid support seat (84) are fixedly arranged on the bottom of the second intermediate plate (3) and the top of the lower support plate (4), respectively.

2. The variable stiffness high-altitude corridor support according to claim 1 is characterized by: The rotation displacement and buffer mechanism (6) further comprises a slot (63) provided in the annular seat (62), a smooth clamping block (64) being fixedly provided on the inner wall of the slot (63), and a smooth contact block (65) being fixedly provided on the outer wall of the rotating ring (61), and the smooth contact block (65) being rotatably provided in the slot (63).

3. The variable stiffness high-altitude corridor support according to claim 2 is characterized by: A steel ball movable groove (66) is provided in the annular seat (62), and a movable steel ball (67) is movably provided in the steel ball movable groove (66).

4. The variable stiffness high-altitude corridor support according to claim 1 is characterized by: The movable displacement and shift buffer mechanism (7) further comprises a guide block (73) fixedly arranged at the bottom of the upper movable seat (71); a guide groove (74) is provided at the top of the lower movable seat (72); and the guide block (73) is slidably arranged in the guide groove (74).

5. The variable stiffness high-altitude corridor support according to claim 4 is characterized by: A rack (79) is fixedly provided at the bottom of the first intermediate plate (2), a gear (710) is fixedly sleeved on the rotating shaft (76), and the rack (79) and the gear (710) are meshed.

6. The variable stiffness high-altitude corridor support according to claim 5, characterized in that: A rotating rod (711) is fixedly provided on the mounting ring (77), a guide frame (712) is fixedly provided on the second intermediate plate (3), a movable frame (714) is slidably provided on the guide frame (712), a first transverse energy-absorbing spring (713) is fixedly provided on the guide frame (712) and the movable frame (714), a movable round pin (715) is movably provided in the movable frame (714), and the tail end of the rotating rod (711) is rotatably provided on the movable round pin (715).

7. The variable stiffness high-altitude corridor support according to claim 6, characterized in that: A guide sleeve (716) is fixedly provided at the bottom of the movable frame (714), and the guide sleeve (716) is slidably sleeved on the guide frame (712).

8. The variable stiffness high-altitude corridor support according to claim 7, characterized in that: A first lateral damper (717) is disposed transversely on the first intermediate plate (2) and the second intermediate plate (3).

9. The variable stiffness high-altitude corridor support according to claim 1, characterized in that: A guide bar (86) is fixedly provided on the lower support plate (4), a slider (87) is slidably provided on the guide bar (86), a connecting rod (88) is rotatably provided on the slider (87), a second support block (85) is fixedly provided on the bottom of the second intermediate plate (3), the other end of the connecting rod (88) is rotatably provided on the second support block (85), the number of the sliders (87) is one group, and a second lateral energy absorption spring (89) and a second lateral damper (810) are fixedly provided between the sliders (87) of one group.

10. The variable stiffness high-altitude corridor support according to claim 9, characterized in that: A sliding groove (811) is provided on the guide bar (86), and a guide slider (812) is fixedly provided at the bottom of the slider (87), and the guide slider (812) is slidably provided in the sliding groove (811).

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