Self-adaptive adjustment damping mechanism for building structure

Abstract

The invention discloses a self-adaptive adjustment damping mechanism for a building structure, and belongs to the technical field of buildings. Comprising a base, a top cover is fixedly connected to the upper surface of the base through a plurality of bolts, a supporting box is arranged in the base, penetrating type inserting holes are formed in the upper surface of the top cover and the upper surface in the supporting box, and a pile foundation is arranged on the lower surface in the supporting box; the top end of the pile foundation penetrates through the two inserting holes, and a plurality of vertical grooves are formed in the inner side wall of the base; worm and worm gears are driven by an adjusting handle to conduct transmission, a transmission gear is driven to be meshed with a gear ring, a plurality of second bevel gears rotate synchronously, then a plurality of rotating sleeves are driven to rotate, synchronous radial movement of a plurality of arc-shaped clamping plates is achieved, vibration rotating handles do not need to be adjusted in sequence, and clamping and fixing of pile foundations of different thicknesses can be rapidly adapted; and traditional multi-step adjustment is simplified into single operation, and the construction efficiency is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the field of building technology, and in particular to a self-adaptive vibration reduction mechanism for a building structure. Background Art

[0002] Earthquake disasters are one of the most destructive natural factors to building structures. Even if a building designed according to conventional seismic resistance concepts meets the expected goals in terms of structural seismic displacement, epicenter behavior, and post-earthquake damage, it may still face many problems after an earthquake, such as long and difficult post-earthquake repairs, which may even require demolition and reconstruction, and high reconstruction costs. For example, in historical earthquake events in some earthquake-prone areas, many buildings were unable to effectively withstand the strong vibrations generated by the earthquake, resulting in serious structural damage, causing numerous casualties and inestimable property losses. The ground motion caused by earthquakes is extremely complex, causing the building structure to be subjected to huge inertial forces, which in turn generates strong vibrations, posing a great threat to the stability of the building structure.

[0003] The prior art (Announcement No.: CN116145738A) discloses a building structure with a device for reducing induced vibrations, the technology includes a base, a fixing mechanism and a supporting mechanism, the fixing mechanism is arranged on the base, the supporting mechanism is arranged on the outer wall of the base, the fixing mechanism includes a first internal threaded hole and a clamping plate, the internal thread of the first internal threaded hole is connected to a threaded rod, a bearing is fixedly installed on the outer wall of the clamping plate, and the threaded rod is fixedly installed on the inner wall of the inner ring of the bearing. The technology is to first fix the base on the ground and then place the pile foundation inside the base. After completion, the construction worker vibrates the handle to drive the threaded rod to rotate, so that the clamping plate moves toward the center of the base to clamp and fix the pile foundation. At the same time, the first vibration damping pad arranged on the inner wall of the clamping plate can absorb the vibration energy, thereby reducing the vibration intensity of the pile foundation and improving the stability of the building structure.

[0004] In the above technology, when adapting to pile foundations of different sizes and thicknesses by adjusting multiple vibration handles in sequence, multiple vibration handles need to be turned in sequence, which reduces the efficiency of construction. At the same time, the above technology only reduces the vibration intensity of the pile foundation through shock-absorbing pads, and cannot adaptively adjust according to the dynamic changes of the actual vibration frequency and amplitude of the pile foundation. When the pile foundation faces different vibration sources such as earthquake waves and subway operation, the shock-absorbing pads can only exert limited vibration isolation effects within a specific frequency band, and thus the blocking ability of long-period earthquake waves is insufficient, resulting in the pile foundation still being subjected to large shear forces. Summary of the Invention

[0005] Purpose of the invention: The purpose of the present invention is to provide a solution to the problem in the above-mentioned technology that when adjusting multiple vibration handles in sequence to adapt to pile foundations of different sizes and thicknesses, multiple vibration handles need to be rotated in sequence, thereby reducing the efficiency of construction; another purpose of the present invention is to provide a solution to the problem in the above-mentioned technology that the vibration intensity of the pile foundation is reduced by only using shock-absorbing pads, and it is impossible to adaptively adjust according to the dynamic changes of the actual vibration frequency and amplitude of the pile foundation.

[0006] Technical solution: An adaptively adjustable building structure vibration reduction mechanism includes a base, the upper surface of the base is fixedly connected to a top cover by multiple bolts, a support box is provided inside the base, and the upper surface of the top cover and the inner upper surface of the support box are both provided with through-type plug holes;

[0007] A pile foundation is provided on the inner lower surface of the support box, and the top of the pile foundation passes through the two plug holes. A plurality of vertical slots are provided on the inner side wall of the base. The inner upper surface and the inner lower surface of the plurality of vertical slots are fixedly connected with a guide rod 1. The outer side walls of the plurality of guide rods 1 are slidably connected with a pressure plate. The outer side walls of the plurality of pressure plates are fixedly connected to the outer side walls of the support box. The outer side walls of the plurality of guide rods 1 are provided with a compression spring 1. The two ends of the plurality of compression springs 1 are respectively fixedly connected to the upper surfaces of the plurality of pressure plates and the inner upper surfaces of the plurality of vertical slots.

[0008] Furthermore, a positioning groove is provided at the center of the lower surface of the pile foundation, and a positioning block is fixedly connected to the inner lower surface of the support box.

[0009] Furthermore, a fixing sleeve is fixedly connected to the center of the lower surface of the base, a hinged plate is fixedly connected to the lower surface of the support box, a pillar is fixedly connected to the center of the lower surface of the hinged plate, the bottom end of the pillar extends to the interior of the fixing sleeve, and the inner lower surface of the fixing sleeve and the lower surface of the pillar are jointly fixedly connected to a compression spring 2.

[0010] Furthermore, the inner side wall of the support box is rotatably connected to a plurality of rotating sleeves, the interiors of the plurality of rotating sleeves are threadedly connected to moving blocks, the outer sides of the plurality of moving blocks are fixedly connected to movable rods, the plurality of movable rods and one end away from the plurality of moving blocks respectively extend to the outer sides of the plurality of rotating sleeves, and are fixedly connected to arc-shaped splints, and limiting grooves are provided below the outer side walls of the plurality of movable rods, and the inner side wall of the support box and located below the plurality of rotating sleeves are fixedly connected to L-shaped limiting rods, and the top ends of the plurality of L-shaped limiting rods are respectively slidably connected to the inner sides of the plurality of limiting grooves.

[0011] Furthermore, the outer sides of the plurality of rotating sleeves are fixedly connected to bevel gear 1, the inner side wall of the support box is rotatably connected to bevel gear 2 and is located above the plurality of rotating sleeves, the outer sides of the plurality of bevel gear 1s are meshed with the outer sides of the bevel gear 2, the upper surface of the bevel gear 2 is fixedly connected to a gear ring, a transmission gear is provided on the inner side of the gear ring, and the outer side wall of the transmission gear is meshed with the inner side wall of the gear ring.

[0012] Furthermore, a transmission rod is fixedly connected to the center of the upper surface of the transmission gear, the top end of the transmission rod extends to the top of the support box and is fixedly connected to a worm wheel, the upper surface of the support box is rotatably connected to a worm located on the outside of the worm wheel, the outer wall of the worm is meshed with the outer wall of the worm wheel, and the upper surface of the worm is fixedly connected to an adjustment handle.

[0013] Furthermore, an annular fixing plate is fixedly connected to the inner lower surface of the base and located on the outer side of the fixing sleeve, and the inner side wall of the annular fixing plate and the outer side wall of the fixing sleeve are jointly fixedly connected with a plurality of guide rods 2, the outer side walls of the plurality of guide rods 2 are slidably connected with sliders, the upper surfaces of the plurality of sliders are rotatably connected with pull rods, the top ends of the plurality of pull rods are rotatably connected to the lower surface of the hinged plate, the outer side walls of the plurality of guide rods 2 are sleeved with tension springs, and the two ends of the plurality of tension springs are respectively fixedly connected to the opposite sides of the plurality of sliders and the fixing sleeve.

[0014] Furthermore, a damper is provided on the inner lower surface of the base and located on the lower surface of the annular fixing plate, and the top ends of a plurality of the dampers are connected to the upper surface of the support box.

[0015] Furthermore, the inner sides of the plurality of arc-shaped splints are fixedly connected with shock-absorbing pads.

[0016] Beneficial effects: By adjusting the handle to drive the worm gear transmission, the transmission gear engages with the ring gear, causing multiple bevel gears to rotate synchronously, thereby driving multiple rotating sleeves to rotate, achieving synchronous radial movement of multiple arc-shaped splints. There is no need to adjust the vibrating handle sequentially, and it can quickly adapt to the clamping and fixation of pile foundations of different thicknesses. The traditional multi-step adjustment is simplified to a single operation, significantly improving construction efficiency.

[0017] Compression spring 1 and the pressure plate cooperate with the support box to form an elastic buffer structure. The damper consumes vibration energy in real time. At the same time, compression spring 2, tension spring, and pull rod between the fixed sleeve and the pillar form a linkage vibration reduction assembly. The buffering force can be automatically adjusted according to the vibration frequency and amplitude of the pile foundation, changing the limitations of the fixed stiffness of traditional shock-absorbing pads, achieving dynamic adaptive attenuation of pile foundation vibration, and improving the accuracy of the vibration reduction effect.

[0018] Compression spring 1 provides vertical buffering, compression spring 2 and tension spring combine to absorb horizontal vibration, the damper consumes vibration energy, and the shock-absorbing pad on the inner side of the arc-shaped splint reduces rigid contact wear. Multiple components work together to form a three-dimensional vibration reduction network, which can not only reduce the impact of pile foundation vibration on the building structure, but also extend the service life of the equipment. It is suitable for a variety of complex construction environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the overall structure of the support box of the present invention;

[0022] Figure 4 It is a schematic diagram of the internal structure of the support box of the present invention;

[0023] Figure 5 This is a schematic diagram of the overall structure of the bevel gear 1, bevel gear 2, ring gear and transmission gear of the present invention;

[0024] Figure 6 1 is a schematic front view of the cross section of the rotating sleeve of the present invention;

[0025] Figure 7 This invention Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0026] In the figure: 1. Base; 2. Top cover; 3. Support box; 4. Plug hole; 5. Pile foundation; 6. Vertical slot; 7. Guide rod 1; 8. Pressure plate; 9. Compression spring 1; 10. Positioning slot; 11. Positioning block; 12. Fixing sleeve; 13. Hinge plate; 14. Pillar; 15. Compression spring 2; 16. Rotating sleeve; 17. Moving block; 18. Movable rod; 19. Arc splint; 20. Limiting slot; 21. L-shaped limiting rod; 22. Bevel gear 1; 23. Bevel gear 2; 24. Ring gear; 25. Transmission gear; 26. Transmission rod; 27. Worm gear; 28. Worm; 29. ​​Adjustment handle; 30. Annular fixing plate; 31. Guide rod 2; 32. Slider; 33. Pull rod; 34. Tension spring; 35. Damper; 36. Shock pad. DETAILED DESCRIPTION

[0027] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Example

[0029] like Figure 1 、 Figure 2 and Figure 7As shown, an adaptively adjustable building structure vibration reduction mechanism is provided, including a base 1, the upper surface of the base 1 is fixedly connected to a top cover 2 by a plurality of bolts, a support box 3 is provided inside the base 1, and a through-type plug hole 4 is provided on the upper surface of the top cover 2 and the inner upper surface of the support box 3; a pile foundation 5 is provided on the inner lower surface of the support box 3, and the top of the pile foundation 5 passes through two plug holes 4, and a plurality of vertical slots 6 are provided on the inner side wall of the base 1, and the inner upper surface and the inner lower surface of the plurality of vertical slots 6 are fixedly connected with a guide rod 7, and the outer side walls of the plurality of guide rods 7 are slidably connected with a pressure plate 8, and the outer side walls of the plurality of pressure plates 8 are fixedly connected to the outer side wall of the support box 3, and the outer side walls of the plurality of guide rods 7 are provided with a compression spring 9, and the two ends of the plurality of compression springs 9 are respectively fixedly connected to the upper surface of the plurality of pressure plates 8 and the inner upper surface of the plurality of vertical slots 6;

[0030] First, pass the bottom end of the pile foundation 5 through the plug hole 4 of the top cover 2 and the support box 3, and then fix it through the adjustment mechanism. Later, when the building structure is subjected to vibration, the support box 3 will displace with the vibration, driving the outer pressure plate 8 to slide along the guide rod 7 in the vertical groove 6. The pressure plate 8 compresses or stretches the compression spring 9. The compression spring 9 absorbs vibration energy through elastic deformation and converts mechanical energy into elastic potential energy. At the same time, the guide rod 7 limits the movement direction of the pressure plate 8 to ensure stable movement of the support box 3, thereby reducing the transmission of vibration to the pile foundation 5. The elastic buffering of multiple compression springs 9 can weaken the vibration amplitude and reduce the dynamic load borne by the pile foundation 5. The cooperation between the guide rod 7 and the pressure plate 8 ensures the stability of the vibration reduction process and avoids the pile foundation 5 from being offset due to vibration. The base 1 and the top cover 2 connected by bolts are easy to install and maintain, and effectively protect the safety of the pile foundation 5 and the building structure.

[0031] like Figure 2 As shown, a positioning groove 10 is provided at the center of the lower surface of the pile foundation 5, and a positioning block 11 is fixedly connected to the inner lower surface of the support box 3;

[0032] When installing the pile foundation 5, first align the positioning block 11 in the support box 3 with the positioning groove 10 on the lower surface of the pile foundation 5, and slowly lower the pile foundation 5 so that the positioning block 11 is completely embedded in the positioning groove 10. The pile foundation 5 is initially positioned in the support box 3 through the mortise and tenon fit of the two, ensuring that the pile foundation 5 is perpendicular to the bottom surface of the support box 3. The fixing process of the pile foundation 5 is then completed. The precise fit of the positioning block 11 and the positioning groove 10 can avoid the displacement of the pile foundation 5 during installation, ensure that its force axis is consistent with the center of the support box 3, and prevent structural stress concentration caused by eccentric loads.

[0033] like Figure 2-Figure 7As shown, the inner side wall of the support box 3 is rotatably connected to a plurality of rotating sleeves 16, the interiors of the plurality of rotating sleeves 16 are all threadedly connected to moving blocks 17, the outer sides of the plurality of moving blocks 17 are all fixedly connected to movable rods 18, and the ends of the plurality of movable rods 18 away from the plurality of moving blocks 17 respectively extend to the outer sides of the plurality of rotating sleeves 16, and are all fixedly connected to arc-shaped splints 19, and the lower sides of the outer side walls of the plurality of movable rods 18 are all provided with limiting grooves 20, and the inner side wall of the support box 3 and located below the plurality of rotating sleeves 16 are all fixedly connected to L-shaped limiting rods 21, and the top ends of the plurality of L-shaped limiting rods 21 are respectively slidably connected to the inner sides of the plurality of limiting grooves 20;

[0034] The outer sides of the plurality of rotating sleeves 16 are fixedly connected to bevel gear 1 22, and the inner side wall of the support box 3, which is located above the plurality of rotating sleeves 16, is rotatably connected to bevel gear 2 23. The outer sides of the plurality of bevel gears 1 22 are meshed with the outer sides of bevel gear 2 23. The upper surface of bevel gear 2 23 is fixedly connected to a ring gear 24, and a transmission gear 25 is provided on the inner side of the ring gear 24. The outer side wall of the transmission gear 25 is meshed with the inner side wall of the ring gear 24.

[0035] A transmission rod 26 is fixedly connected to the center of the upper surface of the transmission gear 25. The top end of the transmission rod 26 extends above the support box 3 and is fixedly connected to a worm wheel 27. A worm 28 is rotatably connected to the upper surface of the support box 3 and located outside the worm wheel 27. The outer wall of the worm 28 is meshed with the outer wall of the worm wheel 27. An adjustment handle 29 is fixedly connected to the upper surface of the worm 28.

[0036] By rotating the adjustment handle 29, the worm 28 is driven to rotate, and the worm 28 is meshed with the worm wheel 27 for transmission. The self-locking property of the worm wheel 27 is used to ensure that the position is locked after adjustment. The worm wheel 27 drives the transmission gear 25 to rotate through the transmission rod 26, and meshes with the gear ring 24 to make multiple bevel gears 23 rotate synchronously, thereby driving the bevel gear 1 22 and the rotating sleeve 16 to rotate. The moving block 17 in the rotating sleeve 16 moves axially due to the threaded connection, pushing the movable rod 18 to drive the arc splint 19 to extend and retract. The L-shaped limiting rod 21 is inserted into the limiting groove 20 of the movable rod 18 to limit the rotation of the movable rod 18, ensuring that the arc splint 19 only moves radially, thereby adaptively clamping pile foundations 5 of different diameters. At the same time, the pile foundation 5 vibrates with The dynamic support box 3 is displaced, and the compression spring 9 buffers the energy consumption. At the same time, the arc-shaped splint 19 fits the surface of the pile foundation 5, and the friction force is used to assist in dissipating the vibration energy. The self-locking property of the worm 28 and the worm wheel 27 prevents the adjustment handle 29 from deflecting during vibration, avoids the loosening of the arc-shaped splint 19, ensures the stability of the clamping force, and realizes reliable fixation and continuous vibration reduction of pile foundations 5 of different thicknesses, thereby realizing adaptive adjustment of the diameter of the pile foundation 5 through mechanical transmission, and has a wide range of applications. The self-locking structure of the worm 28 and the worm wheel 27 prevents the loosening of the clamping caused by vibration, improves the reliability of the system, and the vibration reduction of the arc-shaped splint 19 and the friction energy dissipation spring 9 enhances the multi-dimensional vibration control effect. The installation and adjustment are convenient and no additional energy is required, ensuring long-term stable operation.

[0037] like Figure 3-Figure 6 As shown, the inner sides of the multiple arc-shaped splints 19 are fixedly connected with shock-absorbing pads 36;

[0038] When the arc-shaped splint 19 clamps the pile foundation 5, the shock-absorbing pad 36 fits tightly against the surface of the pile foundation 5. When vibration is transmitted, the elastic material of the shock-absorbing pad 36 first absorbs part of the vibration energy through deformation, and its internal damping characteristics further convert mechanical energy into heat energy dissipation, reducing the transmission of vibration to the arc-shaped splint 19 and the support box 3. At the same time, the shock-absorbing pad 36 can buffer the hard squeezing of the arc-shaped splint 19 on the surface of the pile foundation 5, avoiding damage to the clamping part due to stress concentration. In addition, the elastic buffering of the shock-absorbing pad 36 can adaptively compensate for the slight deformation of the pile foundation 5 caused by vibration, ensuring that the arc-shaped splint 19 and the pile foundation 5 always maintain stable contact, thereby protecting the structural integrity of the pile foundation 5.

[0039] like Figure 2 and Figure 3 As shown, a fixing sleeve 12 is fixedly connected to the center of the lower surface of the base 1, a hinged plate 13 is fixedly connected to the lower surface of the support box 3, a support column 14 is fixedly connected to the center of the lower surface of the hinged plate 13, and the bottom end of the support column 14 extends into the interior of the fixing sleeve 12. The inner lower surface of the fixing sleeve 12 and the lower surface of the support column 14 are fixedly connected to a second compression spring 15;

[0040] An annular fixing plate 30 is fixedly connected to the inner lower surface of the base 1 and located on the outer side of the fixing sleeve 12. The inner side wall of the annular fixing plate 30 and the outer side wall of the fixing sleeve 12 are fixedly connected to multiple guide rods 31. The outer side walls of the multiple guide rods 31 are slidably connected to sliders 32. The upper surfaces of the multiple sliders 32 are rotatably connected to pull rods 33. The top ends of the multiple pull rods 33 are rotatably connected to the lower surface of the hinged plate 13. The outer side walls of the multiple guide rods 31 are each sleeved with tension springs 34. The two ends of the multiple tension springs 34 are respectively fixedly connected to the multiple sliders 32 and the opposite sides of the fixing sleeve 12;

[0041] A damper 35 is provided on the inner lower surface of the base 1 and on the lower surface of the annular fixing plate 30 , and the top ends of the plurality of dampers 35 are connected to the upper surface of the support box 3 ;

[0042] When the pile foundation 5 is subjected to force and vibrates, the support box 3 drives the hinged plate 13 to move up and down, and the pillar 14 compresses or stretches the compression spring 2 15 in the fixed sleeve 12, and absorbs the vertical vibration energy through the elastic deformation of the compression spring 2 15. At the same time, when the hinged plate 13 moves, it pulls multiple pull rods 33 to make the slider 32 slide along the guide rod 2 31, and the tension spring 34 expands and contracts accordingly. The elastic force of the tension spring 34 and the limiting effect of the guide rod 2 31 buffer the horizontal vibration displacement. The damper 35 generates viscous resistance when the support box 3 vibrates, converts the vibration energy into heat energy dissipation, and further weakens the vibration amplitude. The dampers 35 work together to form a multiple vibration reduction system. The compression spring 15 responds to vertical vibration, the tension spring 34 suppresses horizontal shaking, and the damper 35 consumes vibration energy in all directions, thereby achieving omnidirectional buffering of the multi-dimensional vibration of the pile foundation 5 and reducing the mutual coupling of vibrations in different directions. The cooperation between the guide rod 31 and the slider 32 ensures the stable movement of the support box 3 during the vibration process and avoids eccentric force. The energy dissipation effect of the damper 35 can effectively reduce the impact response when the vibration frequency suddenly changes, thereby improving the adaptability of the vibration reduction system to complex vibration environments. The mechanical structure does not require external energy, is easy to maintain, and can stably protect the pile foundation 5 from vibration damage for a long time.

[0043] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An adaptively adjustable building structure vibration reduction mechanism, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a top cover (2) via a plurality of bolts, a support box (3) is provided inside the base (1), and a through-type plug hole (4) is provided on the upper surface of the top cover (2) and the inner upper surface of the support box (3); The inner lower surface of the support box (3) is provided with a pile foundation (5), the top of the pile foundation (5) passes through the two plug holes (4), the inner side wall of the base (1) is provided with a plurality of vertical grooves (6), the inner upper surface and the inner lower surface of the plurality of vertical grooves (6) are fixedly connected with a guide rod (7), the outer side walls of the plurality of guide rods (7) are slidably connected with a pressure plate (8), the outer side walls of the plurality of pressure plates (8) are fixedly connected with the outer side wall of the support box (3), the outer side walls of the plurality of guide rods (7) are provided with a compression spring (9), and the two ends of the plurality of compression springs (9) are respectively fixedly connected with the upper surface of the plurality of pressure plates (8) and the inner upper surface of the plurality of vertical grooves (6).

2. The self-adaptive vibration reduction mechanism for building structures according to claim 1, characterized in that: A positioning groove (10) is provided at the center of the lower surface of the pile foundation (5), and a positioning block (11) is fixedly connected to the inner lower surface of the support box (3).

3. The self-adaptive vibration damping mechanism for building structures according to claim 1, characterized in that: A fixing sleeve (12) is fixedly connected to the center of the lower surface of the base (1), a hinge plate (13) is fixedly connected to the lower surface of the support box (3), a pillar (14) is fixedly connected to the center of the lower surface of the hinge plate (13), the bottom end of the pillar (14) extends to the interior of the fixing sleeve (12), and the inner lower surface of the fixing sleeve (12) and the lower surface of the pillar (14) are fixedly connected to a second compression spring (15).

4. The self-adaptive vibration damping mechanism for building structures according to claim 1, characterized in that: The inner side wall of the support box (3) is rotatably connected to a plurality of rotating sleeves (16), the interiors of the plurality of rotating sleeves (16) are all threadedly connected to moving blocks (17), the outer sides of the plurality of moving blocks (17) are all fixedly connected to movable rods (18), the ends of the plurality of movable rods (18) and away from the plurality of moving blocks (17) respectively extend to the outer sides of the plurality of rotating sleeves (16), and are all fixedly connected to arc-shaped clamping plates (19), and limiting grooves (20) are provided below the outer side walls of the plurality of movable rods (18), and the inner side wall of the support box (3) and located below the plurality of rotating sleeves (16) are all fixedly connected to L-shaped limiting rods (21), and the top ends of the plurality of L-shaped limiting rods (21) are respectively slidably connected to the interiors of the plurality of limiting grooves (20).

5. The self-adaptive vibration reduction mechanism for building structures according to claim 4, characterized in that: The outer side walls of the plurality of rotating sleeves (16) are fixedly connected to bevel gear 1 (22), the inner side wall of the support box (3) is rotatably connected to bevel gear 2 (23) and is located above the plurality of rotating sleeves (16), the outer side walls of the plurality of bevel gears 1 (22) are meshed with the outer side wall of bevel gear 2 (23), the upper surface of bevel gear 2 (23) is fixedly connected to a gear ring (24), a transmission gear (25) is provided on the inner side of the gear ring (24), and the outer side wall of the transmission gear (25) is meshed with the inner side wall of the gear ring (24).

6. The self-adaptive vibration reduction mechanism for building structures according to claim 5, characterized in that: A transmission rod (26) is fixedly connected to the center of the upper surface of the transmission gear (25), the top end of the transmission rod (26) extends to the top of the support box (3) and is fixedly connected to a worm wheel (27), the upper surface of the support box (3) is located outside the worm wheel (27) and is rotatably connected to a worm (28), the outer side wall of the worm (28) is meshed with the outer side wall of the worm wheel (27), and the upper surface of the worm (28) is fixedly connected to an adjustment handle (29).

7. The self-adaptive vibration reduction mechanism for building structures according to claim 3, characterized in that: An annular fixing plate (30) is fixedly connected to the inner lower surface of the base (1) and located on the outer side of the fixing sleeve (12); the inner side wall of the annular fixing plate (30) and the outer side wall of the fixing sleeve (12) are fixedly connected to a plurality of guide rods (31); the outer side walls of the plurality of guide rods (31) are slidably connected to sliders (32); the upper surfaces of the plurality of sliders (32) are rotatably connected to pull rods (33); the top ends of the plurality of pull rods (33) are rotatably connected to the lower surface of the hinged plate (13); the outer side walls of the plurality of guide rods (31) are sleeved with tension springs (34); the two ends of the plurality of tension springs (34) are respectively fixedly connected to the opposite sides of the plurality of sliders (32) and the fixing sleeve (12).

8. The self-adaptive vibration damping mechanism for building structures according to claim 7, characterized in that: A damper (35) is provided on the inner lower surface of the base (1) and located on the lower surface of the annular fixing plate (30), and the top ends of the plurality of dampers (35) are connected to the upper surface of the support box (3).

9. The self-adaptive vibration reduction mechanism for building structures according to claim 4, characterized in that: The inner sides of the plurality of arc-shaped clamping plates (19) are all fixedly connected with shock-absorbing pads (36).

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