Vibration reduction system structure of magnetorheological damping curtain wall

Abstract

The invention discloses a magneto-rheological damping curtain wall vibration reduction system structure, which relates to the technical field of curtain wall vibration reduction, and comprises an embedded part connector and a vibration reduction mechanism, the vibration reduction mechanism comprises a vibration reduction box, an external connection piece, a telescopic block, a magnetorheological fluid cavity, a first magnetic circuit module and a second magnetic circuit module which is fixedly arranged at one end of the telescopic block and used in cooperation with the first magnetic circuit module. The vibration reduction box is fixedly connected with the embedded part connector through an external connecting part, a reinforcing rod and a fixing block, the vibration reduction box is fixed to the unit type curtain wall joint through a clamping strip, a clamping base, a connecting plate and a connecting rod, and large vibration and deformation are avoided when the vibration reduction box is used in cooperation with a telescopic block, a magnetorheological fluid cavity, a first magnetic circuit module and a second magnetic circuit module. And the service life of the high-rise building curtain wall is prolonged, the safety performance of the high-rise building curtain wall is improved, damage of wind load vibration and earthquake force of the high-rise building curtain wall structure to the curtain wall structure is restrained, and the service life of the curtain wall is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of curtain wall vibration reduction, and in particular relates to a magnetorheological damping curtain wall vibration reduction system structure. Background Art

[0002] With the rapid development of my country's economy and the acceleration of urbanization, high-rise buildings have higher requirements for the building facades in terms of artistic form, architectural function, comfort, economy and safety. They have the characteristics of visual transparency, varied and beautiful shapes. The curtain wall is the exterior wall enclosure structure of the building. It is composed of lightweight materials and supporting frames. It is hung on the outside of the main structure of the building and does not bear the load of the main structure. It is only used for enclosure and decoration. Its name comes from its "curtain-type" installation method. It is also called "curtain wall" or "hanging wall".

[0003] Existing curtain wall systems are extremely prone to large vibrations and deformations under wind loads due to their light weight, soft rigidity, and low self-damping. This can cause cracking and shattering of curtain wall panels, seriously threatening the normal use and safety performance of the curtain wall. At the same time, in the engineering design of curtain walls, in order to simplify the analysis model, the influence of glass rigidity is often ignored. The analysis results fail to reflect the natural vibration characteristics of the actual structure. Curtain walls are extremely prone to large vibrations and deformations under wind loads, and even cracking of panels. This not only affects the airtightness and watertightness of the curtain wall, but also poses a certain threat to the safety of building use and cannot meet people's needs. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes a magnetorheological damping curtain wall vibration reduction system structure.

[0005] A magnetorheological damping curtain wall vibration reduction system structure is applied to the curtain wall structure of a high-rise building. The high-rise building curtain wall structure includes several groups of unitized curtain wall nodes, including: embedded connectors embedded in the exterior wall of the high-rise building and a vibration reduction mechanism that is detachably fixed to the embedded connectors; the vibration reduction mechanism includes a vibration reduction box that is detachably fixed to the unitized curtain wall nodes, an external connector that is detachably fixed to the embedded connector, and a telescopic block that is vertically arranged on the external connector and movably connected to the vibration reduction box; the vibration reduction mechanism also includes a magnetorheological fluid chamber that is detachably mounted inside the vibration reduction box, a first magnetic circuit module that is fixedly arranged on one side of the inner wall of the magnetorheological fluid chamber, and a second magnetic circuit module that is fixedly arranged at one end of the telescopic block and is used in conjunction with the first magnetic circuit module. , sensors are embedded in the unit curtain wall nodes to realize nano-level strain monitoring, and the fatigue life of the structure is predicted by combining edge computing. The response delay is less than 50ms, and the magnetorheological variable damping curtain wall vibration reduction system structure responds quickly. The vibration reduction mechanism adjusts the magnetic field strength in real time through sensors, and the dynamic range of the damping force is 0.5-20kN, which can reduce the earthquake response acceleration by 60% and reduce the damage to the curtain wall structure; during low-frequency wind vibration, the magnetic field is reduced to absorb energy flexibly, and during high-frequency earthquakes, the magnetic field is enhanced to resist shear rigidly. The magnetorheological effect response time is less than 15ms. Combined with the edge computing module, the millisecond-level vibration suppression response characteristics are realized. Several groups of the vibration reduction mechanisms are installed on the curtain wall structure of high-rise buildings to form a distributed shock absorption network.

[0006] As a further solution of the present invention: the telescopic block has a rectangular structure; the vibration damping box is provided with a through slot that fits with the telescopic block; the end of the telescopic block away from the external component passes through the through slot and extends into the inner side of the magnetorheological fluid cavity; the magnetorheological fluid is stored in the magnetorheological fluid cavity, and the magnetorheological fluid is composed of micron-sized magnetic particles suspended in a silicone oil-based liquid, and an anti-settling agent is added to improve stability. Under the action of the magnetic field, the particles form a chain structure, and the fluid changes from a Newtonian fluid to a quasi-solid state, with a yield stress of up to 50-100kPa. Under the action of external seismic force or wind load, vibration generates energy, which is transmitted to the vibration damping mechanism through the curtain wall keel. The magnetorheological fluid in the magnetorheological fluid cavity converts mechanical energy into heat energy during shear flow. When the magnetic field intensity is higher, the viscosity of the magnet is greater, and the energy consumption efficiency is improved by 60% to 80%.

[0007] As a further solution of the present invention: the first magnetic circuit module includes a first magnetic part symmetrically arranged on the inner wall of the magnetorheological fluid chamber and a second magnetic part arranged perpendicularly and staggered with the first magnetic part; the first magnetic part and the second magnetic part are used together to form a magnetic circuit; the first magnetic part and the second magnetic part are arranged on the outside of the telescopic block and enable the telescopic block to move through the inside of the first magnetic circuit module.

[0008] As a further solution of the present invention: the second magnetic circuit module includes a third magnetic component symmetrically arranged on the upper and lower side surfaces of one end of the telescopic block and used in conjunction with the first magnetic component, and a fourth magnetic component symmetrically arranged on the left and right side surfaces of one end of the telescopic block and used in conjunction with the second magnetic component; the third magnetic component and the fourth magnetic component can form a magnetic circuit when used in conjunction with each other; the electromagnetic coils are arranged on the outside of the first magnetic circuit module and the second magnetic circuit module with shielded cables to isolate them from the sensor signal lines to avoid electromagnetic interference, and at the same time, edge computing nodes are deployed in the curtain wall keel, with a response delay of <10ms, supporting blockchain storage of abnormal data.

[0009] As a further solution of the present invention: the vibration damping mechanism also includes a clipping strip symmetrically arranged on one side of the vibration damping box and a clipping seat symmetrically arranged on the unitized curtain wall node and connected to the clipping strip; the vibration damping mechanism also includes a connecting plate symmetrically arranged on one side of the vibration damping box and a connecting rod detachably arranged on the unitized curtain wall node and fixing the connecting plate; the upper end surface of the connecting plate is vertically connected to the bottom end of the clipping strip.

[0010] As a further solution of the present invention: external connecting parts are symmetrically provided with external connecting grooves; reinforcing rods connected to the external connecting grooves are symmetrically provided on the embedded part connector; fixing blocks for fixing the external connecting parts are provided at both ends of the reinforcing rod, the embedded part connector includes embedded steel bars, embedded plates that are detachably fixed to the embedded steel bars, and reinforcing parts that are arranged on the embedded plates and can adjust their positions, grooves for adjusting the positions of the embedded steel bars are symmetrically provided on the embedded plates, a guide seat that is guide-connected to the reinforcing parts is provided on the embedded plates, a guide groove that fits in with the guide seat is provided on the reinforcing parts, a limiting rod for limiting the reinforcing parts is provided on the reinforcing parts, and the reinforcing rod is provided on the reinforcing parts.

[0011] As a further solution of the present invention: the vibration damping mechanism also includes a stirring component symmetrically arranged at the bottom inner side of the magnetorheological fluid chamber and stirring and mixing the magnetorheological fluid, and a driving component arranged between the vibration damping box and the magnetorheological fluid chamber and driving the stirring component.

[0012] As a further solution of the present invention: the driving assembly includes a thermal expansion and contraction plate symmetrically arranged on the inner wall of the vibration damping box, a movable plate fitted with the thermal expansion and contraction plate, and several groups of transmission racks vertically arranged on a side of the movable plate away from the thermal expansion and contraction plate; the thermal expansion and contraction plate and the movable plate are both arranged on the inner bottom surface of the vibration damping box; the driving assembly also includes a first rotating rod rotatably arranged on the inner wall of the vibration damping box and several groups of first gears fixedly arranged on the first rotating rod and meshing with the transmission rack for transmission, the thermal expansion and contraction plate is made of thermal expansion and contraction material, which transfers the heat received by the vibration damping box to the thermal expansion and contraction plate, so that the thermal expansion and contraction plate controls the movable plate to move, thereby controlling the transmission rack to move, so that the transmission rack drives the first gear to rotate, and the two ends of the movable plate fit into the inner wall of the vibration damping box and move horizontally.

[0013] As a further solution of the present invention: the drive assembly also includes a second rotating rod arranged above the first rotating rod and rotatably connected to the vibration damping box, and several groups of second gears arranged on the second rotating rod and meshing with the first gear for transmission; the drive assembly also includes several groups of first bevel gears fixedly arranged on the second rotating rod and second bevel gears rotatably arranged on the outer wall of the magnetorheological fluid chamber and meshing with the first bevel gear for transmission; one end of the second bevel gear is coaxially connected to the stirring assembly, and one end of the second bevel gear is vertically provided with a transmission rod extending into the interior of the magnetorheological fluid chamber, and a sealing structure is provided on the magnetorheological fluid chamber to seal the transmission rod.

[0014] As a further solution of the present invention: the stirring assembly includes a stirring rod connected to the second bevel gear and several groups of stirring blades arranged in a circular array on the stirring rod; the several groups of stirring rods are staggered and parallelly arranged at the inner bottom of the magnetorheological fluid cavity.

[0015] As a further solution, the present invention describes a magnetorheological damping curtain wall vibration reduction system structure. By employing a magnetorheological damping structure in the curtain wall of a high-rise building, this system focuses on protecting the unitized curtain wall from vibrations caused by earthquakes and external wind loads. Large deformations caused by wind-induced effects can easily lead to excessive local stress in the unitized curtain wall, potentially causing damage. To address these issues, the present invention employs a method to isolate the unitized curtain wall structure from these adverse factors. Using magnetorheological damping technology, the system prioritizes weak areas with low stiffness and high deformation, such as the sides, top, or joints between floors. Vibration reduction mechanisms maximize the absorption of vibration energy from earthquakes and wind loads. These vibration reduction mechanisms are connected to critical paths, such as beam-column joints and unit joints, between curtain wall units, thereby blocking energy transmission. Mass-concentrated areas near the building's center of gravity or on densely distributed floors experience the greatest vibration amplitude. Vibration reduction mechanisms are installed to reduce the overall vibration effect. A damping node is provided for every 6-8 square meters of curtain wall unit, forming a vibration reduction system grid that synchronously and collaboratively controls multiple vibrations. The magnetorheological damping vibration reduction curtain wall structure described in this invention achieves self-vibration reduction through magnetorheological damping regulation. Its core advantages lie in rapid response, energy absorption, and broadband control. It successfully solves the problem of high-rise building curtain walls being easily damaged by vibration, and becomes an advanced technology in the application of unitized curtain wall vibration reduction structure technology.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present invention sets up a vibration damping mechanism, and the vibration damping box is fixedly connected to the embedded part connector through an external part, a reinforcement rod and a fixed block. The vibration damping box is fixed to the unit curtain wall node through a clamping strip, a clamping seat, a connecting plate and a connecting rod. It is used in conjunction with the telescopic block, the magnetorheological fluid chamber, the first magnetic circuit module and the second magnetic circuit module to avoid cracking and breaking of the curtain wall structure due to large vibration and deformation, thereby improving the service life and safety performance of the curtain wall of a high-rise building, suppressing the wind load vibration and seismic force of the curtain wall structure of the high-rise building from damaging the curtain wall structure, and extending the service life of the curtain wall.

[0018] (2) The present invention sets a driving component and a stirring component, and the thermal expansion and contraction plate, the movable plate, the transmission rack and the first gear cooperate to control the second gear to rotate, and the second gear, the second rotating rod, the first bevel gear, the second bevel gear and the transmission rod control the stirring rod to rotate in the magnetorheological fluid chamber, so that the stirring rod and the stirring blade cooperate to stir and mix the magnetorheological fluid, avoid the precipitation of micron-sized magnetic particles, and maintain the use effect and service life of the magnetorheological fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall structural diagram of the present invention.

[0020] Figure 2 Exploded view of the vibration reduction mechanism of the present invention.

[0021] Figure 3 It is a cross-sectional structural diagram of the vibration damping box in the present invention.

[0022] Figure 4 This is a partial structural diagram of the telescopic block and magnetorheological fluid chamber in the present invention.

[0023] Figure 5 It is a partial structural diagram of the driving assembly and magnetorheological fluid chamber in the present invention.

[0024] Figure 6 It is a partial structural diagram of the driving component and the stirring component in the present invention.

[0025] Figure: 1. Unitized curtain wall node; 2. Embedded connector; 3. Vibration damping box; 4. External connection; 5. Telescopic block; 6. Magnetorheological fluid chamber; 7. First magnetic circuit module; 8. Second magnetic circuit module; 9. Through slot; 10. First magnetic component; 11. Second magnetic component; 12. Third magnetic component; 13. Fourth magnetic component; 14. Card strip; 15. Card seat; 16. Connecting plate; 17. Connecting rod; 18. External slot; 19. Reinforcement rod ; 20. Fixed block; 21. Thermal expansion and contraction plate; 22. Moving plate; 23. Transmission rack; 24. First rotating rod; 25. First gear; 26. Second rotating rod; 27. Second gear; 28. First bevel gear; 29. Second bevel gear; 30. Stirring rod; 31. Stirring blade; 32. Embedded steel bars; 33. Embedded plate; 34. Reinforcement piece; 35. Guide seat; 36. Limit rod; 37. Transmission rod. DETAILED DESCRIPTION

[0026] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1

[0028] See also Figure 1 - Figure 4The present application provides a magnetorheological damping curtain wall vibration reduction system structure, which is applied to the curtain wall structure of a high-rise building. The high-rise building curtain wall structure includes several groups of unitized curtain wall nodes 1, including: embedded connectors 2 embedded in the exterior wall of the high-rise building and a vibration reduction mechanism that is detachably fixed to the embedded connectors 2; the vibration reduction mechanism includes a vibration reduction box 3 that is detachably fixed to the unitized curtain wall node 1, an external connector 4 that is detachably fixed to the embedded connector 2, and a telescopic block 5 that is vertically arranged on the external connector 4 and movably connected to the vibration reduction box 3; the vibration reduction mechanism also includes a detachable mounting In the magnetorheological fluid cavity 6 inside the vibration damping box 3, a first magnetic circuit module 7 is fixedly arranged on one side of the inner wall of the magnetorheological fluid cavity 6, and a second magnetic circuit module 8 is fixedly arranged at one end of the telescopic block 5 and used in conjunction with the first magnetic circuit module 7. The other end of the telescopic block 5 is connected to the external component 4. A sensor is embedded in the unit curtain wall node 1 to achieve a nano-level strain monitoring sensitivity of 0.1με. Combined with edge computing to predict the fatigue life of the structure, the response delay is less than 50ms to achieve a rapid response of the magnetorheological damping curtain wall vibration reduction system structure, and the vibration reduction mechanism adjusts the magnetic field intensity in real time through the sensor. The dynamic range of damping force is 0.5-20kN, which can reduce the earthquake response acceleration by 60% and reduce the damage to the curtain wall structure; the magnetic field is reduced to absorb energy flexibly during low-frequency wind vibration, and the magnetic field is enhanced to resist shear rigidly during high-frequency earthquakes. The response time of magnetorheological effect is less than 15ms, and the delay of edge computing module is less than 10ms, which realizes the millisecond-level vibration suppression response characteristic. Several groups of vibration reduction mechanisms are installed on the curtain wall structure of high-rise buildings to form a distributed vibration reduction network. The embedded connector 2 is fixed to the outer wall of the high-rise building, and the vibration reduction box 3 is connected to the embedded connector 4 through the external connector 4. The component connector 2 is fixedly connected to the vibration damping box 3 and the unitized curtain wall node 1. When the building curtain wall structure is vibrated, the vibration force is transmitted to the vibration damping box 3 through the unitized curtain wall node 1, so that the telescopic block 5 drives the second magnetic circuit module 8 to move in the magnetorheological fluid cavity 6, thereby consuming the vibration force and realizing self-vibration reduction through magnetic field variable damping control. Its core advantages lie in rapid response, energy absorption, and broadband control. It successfully solves the problem of easy vibration damage of high-rise building curtain walls and becomes an advanced technology in the application of unitized curtain wall vibration reduction structure technology.

[0029] In the present invention, the telescopic block 5 is a rectangular structure; a through slot 9 is provided on the vibration damping box 3, which is fitted with the telescopic block 5; the end of the telescopic block 5 away from the external component 4 passes through the through slot 9 and extends into the inner side of the magnetorheological fluid chamber 6; the magnetorheological fluid chamber 6 stores magnetorheological fluid, which is composed of micron-sized magnetic particles suspended in a silicone oil-based liquid, and an anti-settling agent is added to improve stability. Under the action of the magnetic field, the particles form a chain structure, and the fluid changes from a Newtonian fluid to a quasi-solid state, with a yield stress of up to 50-100kPa. Under the action of external seismic force or wind load, vibration generates energy, which is transmitted to the vibration damping mechanism through the curtain wall keel. The magnetorheological fluid in the magnetorheological fluid chamber 6 converts mechanical energy into heat energy during shear flow. When the magnetic field intensity is higher, the viscosity of the magnet is greater, and the energy consumption efficiency is improved by 60% to 80%.

[0030] In the present invention, the first magnetic circuit module 7 includes a first magnetic part 10 symmetrically arranged on the inner wall of the magnetorheological fluid chamber 6 and a second magnetic part 11 arranged perpendicularly and staggered with the first magnetic part 10; the first magnetic part 10 and the second magnetic part 11 are used together to form a magnetic circuit; the first magnetic part 10 and the second magnetic part 11 are arranged on the outside of the telescopic block 5 and enable the telescopic block 5 to move through the inside of the first magnetic circuit module 7.

[0031] In the present invention, the second magnetic circuit module 8 includes a third magnetic part 12 symmetrically arranged on the upper and lower side surfaces of one end of the telescopic block 5 and used in conjunction with the first magnetic part 10, and a fourth magnetic part 13 symmetrically arranged on the left and right side surfaces of one end of the telescopic block 5 and used in conjunction with the second magnetic part 11; the third magnetic part 12 and the fourth magnetic part 13 can be used in conjunction to form a magnetic circuit; the electromagnetic coils are arranged on the outside of the first magnetic circuit module 7 and the second magnetic circuit module 8 with shielded cables, which are isolated from the sensor signal lines to avoid electromagnetic interference. At the same time, edge computing nodes are deployed in the curtain wall keel, with a response delay of <10ms, supporting blockchain storage of abnormal data.

[0032] The vibration damping mechanism in the present invention also includes a clip 14 symmetrically arranged on one side of the vibration damping box 3 and a clip seat 15 symmetrically arranged on the unitized curtain wall node 1 and clipped with the clip 14, and the clip seat 15 is provided with a clip groove that is clipped with the clip 14; the vibration damping mechanism also includes a connecting plate 16 symmetrically arranged on one side of the vibration damping box 3 and a connecting rod 17 detachably arranged on the unitized curtain wall node 1 and fixing the connecting plate 16, and the connecting plate 16 is provided with a connecting hole connected to the connecting rod 17; the upper end surface of the connecting plate 16 is vertically connected to the bottom end of the clip 14, and the clip 14 is inserted into the clip groove so that the clip 14 and the clip seat 15 are clipped, so that the connecting plate 16 is connected to the unitized curtain wall node 1, and the connecting rod 17 is installed in the connecting hole to fix the connecting plate 16 to the unitized curtain wall node 1.

[0033] In the present invention, the external connecting member 4 is symmetrically provided with an external connecting groove 18; the embedded connector 2 is symmetrically provided with a reinforcing rod 19 connected to the external connecting groove 18; both ends of the reinforcing rod 19 are provided with a fixing block 20 for fixing the external connecting member 4, the embedded connector 2 includes an embedded steel bar 32, an embedded plate 33 that is detachably fixed to the embedded steel bar 32, and a reinforcing member 34 that is arranged on the embedded plate 33 and can adjust the position. The embedded plate 33 is symmetrically provided with a groove for adjusting the position of the embedded steel bar 32. A guide seat 35 is provided which is connected to the reinforcement 34, a guide groove which is fitted with the guide seat 35 is provided on the reinforcement 34, a limiting rod 36 for limiting the reinforcement 34 is provided on the reinforcement 34, a reinforcement rod 19 is provided on the reinforcement 34, the external component 4 is aligned with the embedded component connector 2, so that the reinforcement rod 19 is connected with the external groove 18, and the fixing block 20 is rotated so that the inner wall of the fixing block 20 is fitted with the outer wall of the external component 4, thereby fixing the external component 4 to the embedded component connector 2.

[0034] Example 2

[0035] Reference Figure 5 - Figure 6 , which is the second embodiment of the present invention, wherein the vibration damping mechanism of the present invention further includes a stirring assembly symmetrically arranged at the bottom inner side of the magnetorheological fluid chamber 6 and stirring and mixing the magnetorheological fluid, and a driving assembly arranged between the vibration damping box 3 and the magnetorheological fluid chamber 6 and driving the stirring assembly. The vibration damping box 3 is installed on the inner side of the curtain wall structure, so that the temperature of the vibration damping box 3 is higher when the sunlight is strong.

[0036] The driving assembly in the present invention includes a thermal expansion and contraction plate 21 symmetrically arranged on the inner wall of the vibration damping box 3, a movable plate 22 fitted with the thermal expansion and contraction plate 21, and several groups of transmission racks 23 vertically arranged on the side of the movable plate 22 away from the thermal expansion and contraction plate 21; the thermal expansion and contraction plate 21 and the movable plate 22 are both arranged on the inner bottom surface of the vibration damping box 3; the driving assembly also includes a first rotating rod 24 rotatably arranged on the inner wall of the vibration damping box 3 and several groups of first gears 25 fixedly arranged on the first rotating rod 24 and meshing with the transmission rack 23 for transmission. The thermal expansion and contraction plate 21 is made of thermal expansion and contraction material, and the heat received by the vibration damping box 3 is transferred to the thermal expansion and contraction plate 21, so that the thermal expansion and contraction plate 21 controls the movement of the movable plate 22, thereby controlling the transmission rack 23 moves, so that the transmission rack 23 drives the first gear 25 to rotate, and the two ends of the movable plate 22 are in contact with the inner wall of the vibration damping box 3 and move horizontally. In order to make the movable plate 22 move horizontally, a guide hole can be set on the movable plate 22, and a guide rod matching the guide hole can be vertically installed in the vibration damping box 3; when the temperature of the vibration damping box 3 rises, the heat of the vibration damping box 3 is transferred to the thermal expansion and contraction plate 21, so that the thermal expansion and contraction plate 21 expands, thereby driving the movable plate 22 to move horizontally, and the movable plate 22 moves to drive the transmission rack 23 to move, and the transmission rack 23 drives the first gear 25 to rotate. The first gear 25 can drive the adjacent first gear 25 to rotate synchronously through the first rotating rod 24.

[0037] The driving assembly of the present invention further includes a second rotating rod 26 arranged above the first rotating rod 24 and rotatably connected to the vibration damping box 3, and a plurality of groups of second gears 27 arranged on the second rotating rod 26 and meshing with the first gear 25 for transmission; the driving assembly further includes a plurality of groups of first bevel gears 28 fixedly arranged on the second rotating rod 26 and a second bevel gear 29 rotatably arranged on the outer wall of the magnetorheological fluid chamber 6 and meshing with the first bevel gear 28 for transmission; one end of the second bevel gear 29 is coaxially connected to the stirring assembly, and one end of the second bevel gear 29 is vertically provided with a gear extending into the interior of the magnetorheological fluid chamber 6 The magnetorheological fluid chamber 6 is provided with a sealing structure for sealing the transmission rod 37. When the first gear 25 drives the second gear 27 to rotate, the second gear 27 drives the second rotating rod 26 to rotate, so that the second rotating rod 26 drives several groups of first bevel gears 28 to rotate, so that the first bevel gear 28 drives the second bevel gear 29 to rotate. The diameter of the first gear 25 is larger than the diameter of the second gear 27, so that the number of rotations of the second gear 27 is greater than the number of rotations of the first gear 25, thereby improving the stirring effect of the stirring assembly.

[0038] The stirring assembly in the present invention includes a stirring rod 30 connected to the second bevel gear 29 and several groups of stirring blades 31 arranged in a circular array on the stirring rod 30; the several groups of stirring rods 30 are staggered and parallel at the inner bottom of the magnetorheological fluid chamber 6. When the second bevel gear 29 drives the stirring rod 30 to rotate in the magnetorheological fluid through the transmission rod 37, the stirring rod 30 drives the stirring blade 31 to rotate to stir and mix the magnetorheological fluid, thereby preventing the micron-sized magnetic particles from settling, so that when the curtain wall is in a long-term state of no vibration, the magnetorheological fluid in the magnetorheological fluid chamber 6 will not be in a long-term static state, resulting in the aggregation of micron-sized magnetic particles, which may cause response lag or failure.

[0039] Example 3

[0040] Reference Figure 1 - Figure 6 , combining Example 1 and Example 2 to obtain this embodiment.

[0041] The vibration damping box 3 is fixedly connected to the embedded part connector 2 through the external part 4, the reinforcement rod 19 and the fixing block 20. The vibration damping box 3 is fixed to the unitized curtain wall node 1 through the clamping strip 14, the clamping seat 15, the connecting plate 16 and the connecting rod 17. It is used in conjunction with the telescopic block 5, the magnetorheological fluid chamber 6, the first magnetic circuit module 7 and the second magnetic circuit module 8 to avoid cracking and breaking of the curtain wall structure due to large vibration and deformation, thereby improving the service life and safety performance of the curtain wall of high-rise buildings and suppressing the damage to the curtain wall structure caused by wind load vibration and seismic force of the curtain wall structure of high-rise buildings;

[0042] The thermal expansion and contraction plate 21, the movable plate 22, the transmission rack 23 and the first gear 25 cooperate to control the rotation of the second gear 27. The second gear 27, the second rotating rod 26, the first bevel gear 28, the second bevel gear 29 and the transmission rod 37 control the stirring rod 30 to rotate in the magnetorheological fluid chamber 6, so that the stirring rod 30 and the stirring blade 31 cooperate to stir and mix the magnetorheological fluid, thereby preventing the micron-sized magnetic particles from settling and maintaining the use effect and service life of the magnetorheological fluid.

[0043] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A magnetorheological damping curtain wall vibration reduction system structure, applied to a high-rise building curtain wall structure, wherein the high-rise building curtain wall structure comprises a plurality of sets of unitized curtain wall nodes (1), characterized in that: include: An embedded component connector (2) embedded in the exterior wall of a high-rise building and a vibration reduction mechanism detachably fixed to the embedded component connector (2); The vibration damping mechanism comprises a vibration damping box (3) detachably fixed to the unitized curtain wall node (1), an external connection piece (4) detachably fixed to the embedded component connector (2), and a telescopic block (5) vertically arranged on the external connection piece (4) and movably connected to the vibration damping box (3); The vibration damping mechanism further comprises a magnetorheological fluid chamber (6) detachably mounted inside the vibration damping box (3), a first magnetic circuit module (7) fixedly mounted on one side of the inner wall of the magnetorheological fluid chamber (6), and a second magnetic circuit module (8) fixedly mounted on one end of the telescopic block (5) and used in conjunction with the first magnetic circuit module (7).

2. The magnetorheological damping curtain wall vibration reduction system structure according to claim 1 is characterized in that: The telescopic block (5) is a rectangular parallelepiped structure; The vibration damping box (3) is provided with a through slot (9) that fits with the telescopic block (5); One end of the telescopic block (5) away from the external connection member (4) passes through the through slot (9) and extends into the inner side of the magnetorheological fluid chamber (6); The magnetorheological fluid chamber (6) stores magnetorheological fluid.

3. The magnetorheological damping curtain wall vibration reduction system structure according to claim 2, characterized in that: The first magnetic circuit module (7) comprises a first magnetic member (10) symmetrically arranged on the inner wall of the magnetorheological fluid chamber (6) and a second magnetic member (11) arranged perpendicularly to the first magnetic member (10); The first magnetic component (10) and the second magnetic component (11) are used in conjunction with each other to form a magnetic circuit; The first magnetic component (10) and the second magnetic component (11) are arranged on the outside of the telescopic block (5) and enable the telescopic block (5) to move through the inside of the first magnetic circuit module (7).

4. The magnetorheological damping curtain wall vibration reduction system structure according to claim 3 is characterized in that: The second magnetic circuit module (8) comprises a third magnetic component (12) symmetrically arranged on the upper and lower side surfaces of one end of the telescopic block (5) and used in conjunction with the first magnetic component (10); and a fourth magnetic component (13) symmetrically arranged on the left and right side surfaces of one end of the telescopic block (5) and used in conjunction with the second magnetic component (11); The third magnetic component (12) and the fourth magnetic component (13) are used in conjunction with each other to form a magnetic circuit.

5. The magnetorheological damping curtain wall vibration reduction system structure according to claim 1, characterized in that: The vibration damping mechanism further comprises a clamping strip (14) symmetrically arranged on one side of the vibration damping box (3) and a clamping seat (15) symmetrically arranged on the unitized curtain wall node (1) and clamped to the clamping strip (14); The vibration damping mechanism further comprises a connecting plate (16) symmetrically arranged on one side of the vibration damping box (3) and a connecting rod (17) detachably arranged on the unitized curtain wall node (1) and fixing the connecting plate (16); The upper end surface of the connecting plate (16) is vertically connected to the bottom end of the clamping strip (14).

6. The magnetorheological damping curtain wall vibration reduction system structure according to claim 1, characterized in that: The external connection member (4) is symmetrically provided with external connection grooves (18); The embedded connector (2) is symmetrically provided with reinforcement rods (19) connected to the external grooves (18); Both ends of the reinforcing rod (19) are provided with fixing blocks (20) for fixing the external connecting member (4).

7. The magnetorheological damping curtain wall vibration reduction system structure according to claim 1, characterized in that: The vibration damping mechanism further comprises a stirring assembly symmetrically arranged at the inner bottom of the magnetorheological fluid chamber (6) and stirring and mixing the magnetorheological fluid, and a driving assembly arranged between the vibration damping box (3) and the magnetorheological fluid chamber (6) and driving the stirring assembly.

8. The magnetorheological damping curtain wall vibration reduction system structure according to claim 7, characterized in that: The driving assembly comprises a thermal expansion and contraction plate (21) symmetrically arranged on the inner wall of the vibration damping box (3), a movable plate (22) in contact with the thermal expansion and contraction plate (21), and a plurality of transmission racks (23) vertically arranged on a side of the movable plate (22) away from the thermal expansion and contraction plate (21); The thermal expansion and contraction plate (21) and the movable plate (22) are both arranged on the inner bottom surface of the vibration damping box (3); The driving assembly further comprises a first rotating rod (24) rotatably arranged on the inner wall of the vibration damping box (3) and a plurality of first gears (25) fixedly arranged on the first rotating rod (24) and meshing with the transmission rack (23) for transmission.

9. The magnetorheological damping curtain wall vibration reduction system structure according to claim 1, characterized in that: The driving assembly further includes a second rotating rod (26) disposed above the first rotating rod (24) and rotatably connected to the vibration damping box (3), and a plurality of second gears (27) disposed on the second rotating rod (26) and meshing with the first gear (25). The driving assembly further comprises a plurality of first bevel gears (28) fixedly arranged on the second rotating rod (26) and a second bevel gear (29) rotatably arranged on the outer wall of the magnetorheological fluid chamber (6) and meshing with the first bevel gear (28). One end of the second bevel gear (29) is coaxially connected to the stirring assembly.

10. The magnetorheological damping curtain wall vibration reduction system structure according to claim 9, characterized in that: The stirring assembly includes a stirring rod (30) connected to a second bevel gear (29) and a plurality of stirring blades (31) arranged in a circular array on the stirring rod (30); A plurality of groups of stirring rods (30) are arranged in parallel and staggered manner on the inner bottom of the magnetorheological fluid chamber (6).

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