High-damping rubber bearing for building isolation and working method thereof

Abstract

The application discloses a high-damping rubber support for building shock insulation and a working method thereof, which comprises connecting steel plates, shock insulation mechanisms are arranged between the connecting steel plates, the shock insulation mechanisms are composed of shock insulation rubbers and inner steel plates, the shock insulation rubbers and the inner steel plates are provided with a plurality of shock insulation rubbers and inner steel plates, and outer protective layers are arranged outside the shock insulation rubbers and the inner steel plates; further comprising: a movable shell which is arranged outside the shock insulation mechanisms, first crumpled rubbers are arranged at upper and lower ends of the movable shell, an air outlet is arranged on one side of the movable shell, and a heat dissipation fan is arranged inside the air outlet; damping buffers are arranged at four corners between the shock insulation mechanisms and the movable shell; a kinetic energy recovery mechanism is arranged outside the damping buffers, and a micro generator is arranged inside the kinetic energy recovery mechanism, so that the problem that heat in the rubber support cannot be discharged and the service life of the shock insulation rubber is reduced is solved.

Description

Technical Field

[0001] This invention relates to the field of rubber bearing technology, specifically to a high-damping rubber bearing for seismic isolation in buildings and its working method. Background Technology

[0002] Traditional earthquake-resistant technology involves firmly connecting the superstructure and foundation of a building, essentially making the house stronger by using thicker steel bars and more concrete. However, this approach is not ideal for earthquake resistance. Rubber bearings, on the other hand, add a seismic isolation layer between the superstructure and the foundation. Rubber bearings are support devices installed in a structure to achieve seismic isolation requirements. By adding a seismic isolation layer between the superstructure and the foundation and installing rubber seismic isolation bearings, they provide a flexible connection to the ground. This technology can dissipate approximately 80% of the energy from an earthquake. Examples include laminated rubber bearings (also known as seismic isolation rubber bearings or sandwich rubber pads). These are structural components with relatively low horizontal stiffness but high vertical stiffness, capable of withstanding large horizontal deformations and serving as part of the load-bearing system.

[0003] For example, Chinese patent CN110219932A, entitled "A High-Damping Seismic Isolation Rubber Bearing," describes a rubber seat between an upper and lower steel plate. The bottom of the upper steel plate is connected to the upper end of the rubber seat via several damping airbags, and the upper end of the lower steel plate is connected to the bottom of the rubber seat via several damping blocks. Connecting frames are installed on both sides of the rubber seat, and guide sleeves are installed on the outer side of the connecting frames. Guide rods are installed on both sides of the bottom of the upper steel plate and the upper end of the lower steel plate. The upper and lower guide rods are respectively inserted into the upper and lower sides of the guide sleeve. A slider is installed at the end of each guide rod, and the two sliders are connected by a connecting spring. Limiting caps are installed at both the upper and lower ends of the guide sleeve. This design achieves rapid damping and guidance, improves stability, increases efficiency, and saves time.

[0004] While the aforementioned existing technologies can achieve vibration isolation, rubber bearings convert kinetic energy into heat energy during the isolation process. If the heat cannot be dissipated in time and accumulates internally, it will generate high heat. Rubber loses its elasticity at high temperatures and becomes increasingly hard. Furthermore, repeated high-temperature-low-temperature alternations can easily lead to material fatigue. At high temperatures, the organic matter in the rubber decomposes, causing the material to lose its toughness, become brittle and easily damaged, and is also prone to oxidation and corrosion. If it comes into contact with other substances, it can easily cause corrosion, thus reducing the service life of the rubber bearing and compromising the actual vibration isolation effect. Therefore, it does not meet the current requirements. To address this, we propose a high-damping rubber bearing for building seismic isolation and its working method. Summary of the Invention

[0005] The purpose of this invention is to provide a high-damping rubber bearing for seismic isolation of buildings and its working method, so as to solve the problem mentioned in the background art that the internal heat of the rubber bearing cannot be dissipated, which will lead to a decrease in the service life of the seismic isolation rubber.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-damping rubber bearing for seismic isolation in buildings, comprising connecting steel plates, wherein two connecting steel plates are provided, and a seismic isolation mechanism is provided between the connecting steel plates. The seismic isolation mechanism is composed of seismic isolation rubber and inner steel plates, wherein a plurality of seismic isolation rubber and inner steel plates are provided, and the seismic isolation rubber and inner steel plates are spaced apart. An outer protective layer is provided on the outside of the seismic isolation rubber and inner steel plates; further comprising:

[0007] A movable outer shell is disposed outside the vibration isolation mechanism. The upper and lower ends of the movable outer shell are provided with first pleated rubber, and the two ends of the first pleated rubber are respectively sealed and fixed to the connecting steel plate and the movable outer shell. An air outlet is provided on one side of the movable outer shell, and a cooling fan is installed inside the air outlet.

[0008] The damping buffer is located at the four corners between the vibration isolation mechanism and the movable shell, and the fixed end and the movable end of the damping buffer are respectively fixed to the upper and lower connecting steel plates.

[0009] A kinetic energy recovery mechanism is disposed outside the damping buffer. A micro generator is installed inside the kinetic energy recovery mechanism, and a first transmission wheel is rotatably mounted at the center position of one end of the rotor inside the micro generator.

[0010] Preferably, a rack is fixedly installed on the outside of the telescopic end of the damping buffer, a second transmission wheel is installed on one side of the damping buffer, and the second transmission wheel is connected to the kinetic energy recovery mechanism through a rotating shaft. A central gear is provided at the middle position on one side of the second transmission wheel, and the central gear is meshed with the rack. An external gear is provided on the outer ring of the second transmission wheel, and the external gear is meshed with the first transmission wheel.

[0011] Preferably, one end of the rotor inside the micro generator is provided with an annular groove, a rotating plate is fixedly provided on the shaft at one end of the first transmission wheel, and a pawl is provided on the outer side of each rotating plate, and the pawl is connected to the rotating plate through a connecting shaft, and the pawl is adapted to the annular groove.

[0012] Preferably, a storage battery is installed on one side inside the kinetic energy recovery mechanism, the output end of the micro generator is electrically connected to the input end of the storage battery, and the output end of the storage battery is electrically connected to the power input end of the cooling fan.

[0013] Preferably, the inner steel plate has heat dissipation holes inside, and there are several heat dissipation holes. The outer protective layer and the movable outer shell are provided with second pleated rubber on both the front and back, and the second pleated rubber divides the interior of the movable outer shell into two cavities. The heat dissipation holes connect the two cavities.

[0014] Preferably, an air inlet is provided on the other side of the movable housing, and a filter screen is installed inside the air inlet.

[0015] Preferably, the micro generator is provided with a fixing frame at both the upper and lower ends, and one end of the fixing frame is fixed to the kinetic energy recovery mechanism.

[0016] Preferably, fastening bolts are provided at all four corners of the connecting steel plate.

[0017] The working method of high-damping rubber bearings for seismic isolation in buildings includes the following steps:

[0018] Step 1: When the building vibrates, the vibration force is gradually reduced by the cooperation of the vibration isolation rubber and the inner steel plate. At this time, the upper and lower connecting steel plates are squeezed by the vibration force, causing the extension and retraction ends of the damping buffer to move.

[0019] Step 2: During the movement, the rack on one side will drive the central gear to rotate under the meshing action, thereby driving the second transmission wheel to rotate. Under the meshing of its external gear and the first transmission wheel on the micro generator, the first transmission wheel will rotate. In this process, the first transmission wheel is accelerated through the cooperation between the gears.

[0020] Step 3: As the first drive wheel rotates, the pawl is thrown off by centrifugal force, allowing it to engage with the annular groove. At this time, the first drive wheel drives the rotor in the micro generator to rotate in the magnetic field. The magnetic field passes through the stator coil, forming a cutting magnetic field, which converts mechanical energy into electrical energy. The electrical energy is then stored in the battery. Conversely, under normal circumstances, the damping buffer will not move without vibration. Therefore, due to insufficient power, the heat dissipation mechanism cannot be turned on, thus achieving energy saving.

[0021] Step 4: Discharge when the set charge is reached, creating a negative pressure inside the movable housing. This allows the heat from the vibration isolation mechanism to be expelled to the outside through the heat dissipation holes, while outside air enters the housing through the air inlet on the other side, thus cooling the vibration isolation rubber and the inner steel plate.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. This invention features a movable outer shell surrounding a vibration isolation mechanism composed of vibration-damping rubber and an inner steel plate. One side of the movable outer shell is an air inlet, and the other side is an air outlet. First pleated rubber sections at its upper and lower ends are fixed to the connecting steel plate and the movable outer shell, respectively. During vibration isolation, these sections can be retracted to prevent compression of the movable outer shell. Inside the movable outer shell, a second pleated rubber section divides the interior into two cavities. Several heat dissipation holes are located inside the inner steel plate, connecting to the two cavities. During operation, the vibration isolation mechanism continuously converts kinetic energy into heat energy, which accumulates in the inner steel plate and the vibration-damping rubber. At this point, a cooling fan activates, creating a negative pressure inside the movable outer shell. This pressure dissipates the heat from the vibration isolation mechanism through the heat dissipation holes, while external air enters through the air inlet on the other side of the movable outer shell, cooling the vibration-damping rubber and the inner steel plate. This structure prevents overheating of the vibration-damping rubber, effectively extending its service life and ensuring the effectiveness of building vibration isolation.

[0024] 2. This invention installs kinetic energy recovery mechanisms at the four corners inside the movable outer shell. These mechanisms contain damping buffers fixed to the upper and lower connecting steel plates. The damping buffers work in conjunction with the seismic isolation mechanism to improve the seismic isolation effect of the building. Simultaneously, the damping buffers enhance the overall stability of the seismic isolation. During the seismic isolation process, the telescopic end of the damping buffer moves. During this movement, a rack on one side meshes with the central gear, causing it to rotate. This, in turn, drives the second transmission wheel to rotate. The external gear meshes with the first transmission wheel on the micro-generator, causing the first transmission wheel to rotate. In this process, speed changes are achieved through the engagement of the gears, accelerating the first transmission wheel. The rotational speed of the transmission wheel is controlled by an annular slot on the micro-generator. Pawls are mounted on both sides of the first transmission wheel within the slot via connecting shafts. Centrifugal force causes these pawls to open and engage with the annular slot, driving the rotor in the micro-generator to rotate in a magnetic field. The magnetic field passes through the stator coils, thus cutting the magnetic field and converting mechanical energy into electrical energy, thereby generating electricity. The current is stored in a battery to power the cooling fan. This structure, in conjunction with a power management chip, can discharge when a set charge level is reached, causing the cooling fan to operate. Under normal circumstances, the damping buffer will not move. Therefore, due to insufficient power, the cooling mechanism cannot be activated, achieving energy saving. Attached Figure Description

[0025] Figure 1 This is a perspective view of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall internal structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of the kinetic energy recovery mechanism of the present invention;

[0028] Figure 4 This is a top view of the overall internal structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the transmission structure on one side of the micro generator of the present invention;

[0030] Figure 6 For the present invention Figure 2 Enlarged view of a portion of region A in the middle.

[0031] In the diagram: 1. Connecting steel plate; 2. Fastening bolts; 3. Movable outer shell; 4. Cooling fan; 5. First corrugated rubber; 6. Vibration-damping rubber; 7. Inner steel plate; 8. Outer protective layer; 9. Filter screen; 10. Damping buffer; 11. Kinetic energy recovery mechanism; 12. Micro generator; 13. First transmission wheel; 14. Second transmission wheel; 15. Central gear; 16. Rack; 17. External gear; 18. Fixing frame; 19. Battery; 20. Heat dissipation hole; 21. Second corrugated rubber; 22. Annular groove; 23. Rotating plate; 24. Pawl; 25. Connecting shaft. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] Please see Figure 1-6 An embodiment of the present invention provides a high-damping rubber bearing for seismic isolation in buildings, comprising connecting steel plates 1, wherein two connecting steel plates 1 are provided, and a seismic isolation mechanism is provided between the connecting steel plates 1. The seismic isolation mechanism consists of seismic isolation rubber 6 and inner steel plates 7, wherein a plurality of seismic isolation rubber 6 and inner steel plates 7 are provided and spaced apart, and an outer protective layer 8 is provided on the outside of the seismic isolation rubber 6 and inner steel plates 7; further comprising:

[0034] The movable housing 3 is set outside the vibration isolation mechanism. The upper and lower ends of the movable housing 3 are provided with first pleated rubber 5, and the two ends of the first pleated rubber 5 are respectively sealed and fixed to the connecting steel plate 1 and the movable housing 3. An air outlet is provided on one side of the movable housing 3, and a cooling fan 4 is installed inside the air outlet.

[0035] The damping buffer 10 is located at the four corners between the seismic isolation mechanism and the movable shell 3. The fixed end and the movable end of the damping buffer 10 are respectively fixed to the upper and lower connecting steel plates 1. The damping buffer 10 can work with the seismic isolation mechanism to improve the seismic isolation effect of the building. At the same time, the damping buffer 10 can improve the overall seismic isolation stability.

[0036] The kinetic energy recovery mechanism 11 is located outside the damping buffer 10. A micro generator 12 is installed inside the kinetic energy recovery mechanism 11. A first transmission wheel 13 is rotatably installed at the center of one end of the rotor inside the micro generator 12.

[0037] When in use, the power management chip can be used to discharge when the set power level is reached, thereby enabling the cooling fan 4 to work. Under normal circumstances, the damping buffer 10 will not move, and the cooling fan 4 will not be able to turn on due to insufficient power, thus achieving energy saving.

[0038] Please see Figure 2 , Figure 3 and Figure 4 A rack 16 is fixedly installed on the outside of the telescopic end of the damping buffer 10. A second transmission wheel 14 is installed on one side of the damping buffer 10, and the second transmission wheel 14 is connected to the kinetic energy recovery mechanism 11 through a rotating shaft. A central gear 15 is provided at the middle position on one side of the second transmission wheel 14, and the central gear 15 is meshed with the rack 16. An external gear 17 is provided on the outer ring of the second transmission wheel 14, and the external gear 17 is meshed with the first transmission wheel 13. This not only converts the force generated by vibration, but also accelerates the first transmission wheel 13.

[0039] Please see Figure 2 and Figure 5 The micro generator 12 has an annular groove 22 at one end of the rotor. A rotating plate 23 is fixedly mounted on the shaft at one end of the first transmission wheel 13. A pawl 24 is provided on the outer side of the rotating plate 23. The pawl 24 is connected to the rotating plate 23 through a connecting shaft 25. The pawl 24 is adapted to the annular groove 22. When rotating in the opposite direction, the pawl 24 cannot engage with the annular groove 22, thus facilitating the reset of the damping buffer 10.

[0040] Please see Figure 3 and Figure 4 A battery 19 is installed on one side inside the kinetic energy recovery mechanism 11. The output end of the micro generator 12 is electrically connected to the input end of the battery 19, and the output end of the battery 19 is electrically connected to the power input end of the cooling fan 4 to store the generated current so as to power the cooling fan 4.

[0041] Please see Figure 4 and Figure 6 The inner steel plate 7 has several heat dissipation holes 20 inside. The outer protective layer 8 and the movable outer shell 3 are provided with second corrugated rubber 21 at the front and back. The second corrugated rubber 21 divides the interior of the movable outer shell 3 into two cavities. The heat dissipation holes 20 connect the two cavities. This structure can prevent the vibration isolation rubber 6 from overheating and effectively improve the service life of the vibration isolation rubber 6, thereby ensuring the vibration isolation effect of the building.

[0042] Please see Figure 2 An air inlet is provided on the other side of the movable outer shell 3. A filter screen 9 is installed inside the air inlet to prevent external dust from entering the interior. One side of the movable outer shell 3 is the air inlet and the other side is the air outlet. The upper and lower ends are provided with first pleated rubber 5, which is fixed to the connecting steel plate 1 and the movable outer shell 3 respectively. So that it can be expanded and contracted in coordination during the vibration isolation process to avoid squeezing the movable outer shell 3. Inside the movable outer shell 3, the interior is divided into two cavities by the second pleated rubber 21. At the same time, several heat dissipation holes 20 are provided inside the inner steel plate 7. These heat dissipation holes 20 are connected to the two cavities respectively to form a heat dissipation air duct.

[0043] Please see Figure 2 and Figure 3 The micro generator 12 is equipped with a fixing frame 18 at both the upper and lower ends, and one end of the fixing frame 18 is fixed to the kinetic energy recovery mechanism 11 to improve the fixing effect of the micro generator 12 and ensure the stability of the power generation process.

[0044] Please see Figure 1 Fastening bolts 2 are installed at the four corners of the connecting steel plate 1 for connecting to the main building structure.

[0045] The working method of high-damping rubber bearings for seismic isolation in buildings includes the following steps:

[0046] Step 1: When the building vibrates, the vibration force is gradually reduced by the cooperation of the vibration isolation rubber 6 and the inner steel plate 7. At this time, the upper and lower connecting steel plates 1 are squeezed by the vibration force, causing the telescopic end of the damping buffer 10 to move.

[0047] Step 2: During the movement, the rack 16 on one side will drive the central gear 15 to rotate under the meshing action, thereby driving the second transmission wheel 14 to rotate. Under the meshing of its external gear 17 and the first transmission wheel 13 on the micro generator 12, the first transmission wheel 13 will be driven to rotate. In this process, the first transmission wheel 13 is accelerated through the cooperation between the gears.

[0048] Step 3: As the first transmission wheel 13 rotates, the pawl 24 is thrown off by centrifugal force, so that the pawl 24 engages with the annular groove 22. At this time, the first transmission wheel 13 drives the rotor in the micro generator 12 to rotate in the magnetic field. The magnetic field passes through the stator coil and forms a cutting magnetic field, which converts mechanical energy into electrical energy. The electrical energy is then stored in the battery 19.

[0049] Step 4: Discharge when the set power is reached, creating a negative pressure inside the movable housing 3. This allows the heat from the vibration isolation mechanism to be expelled to the outside through the heat dissipation holes 20. Meanwhile, outside air enters the interior through the air inlet on the other side of the movable housing 3, cooling the vibration isolation rubber 6 and the inner steel plate 7. Under normal circumstances, since the damping buffer 10 will not move, the cooling fan 4 will not be turned on due to insufficient power, thus achieving energy saving.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-damping rubber bearing for seismic isolation of buildings, comprising connecting steel plates (1), wherein two connecting steel plates (1) are provided, and a seismic isolation mechanism is provided between the connecting steel plates (1), wherein the seismic isolation mechanism is composed of seismic isolation rubber (6) and inner steel plates (7), wherein a plurality of seismic isolation rubber (6) and inner steel plates (7) are provided, and the seismic isolation rubber (6) and inner steel plates (7) are spaced apart, and an outer protective layer (8) is provided on the outside of the seismic isolation rubber (6) and inner steel plates (7); characterized in that: Also includes: The movable housing (3) is located outside the vibration isolation mechanism. The upper and lower ends of the movable housing (3) are provided with first pleated rubber (5), and the two ends of the first pleated rubber (5) are respectively sealed and fixed to the connecting steel plate (1) and the movable housing (3). An air outlet is provided on one side of the movable housing (3), and a cooling fan (4) is installed inside the air outlet. The damping buffer (10) is located at the four corners between the vibration isolation mechanism and the movable shell (3), and the fixed end and the movable end of the damping buffer (10) are respectively fixed to the upper and lower connecting steel plates (1); A kinetic energy recovery mechanism (11) is disposed outside the damping buffer (10). A micro generator (12) is installed inside the kinetic energy recovery mechanism (11). A first transmission wheel (13) is rotatably mounted at the center of one end of the rotor inside the micro generator (12). A rack (16) is fixedly mounted on the outside of the telescopic end of the damping buffer (10). A second transmission wheel (14) is mounted on one side of the damping buffer (10), and the second transmission wheel (14) is connected to the kinetic energy recovery mechanism (11) through a rotating shaft. A central gear (15) is disposed at the middle position on one side of the second transmission wheel (14), and the central gear (15) meshes with the rack (16). An external gear (17) is disposed on the outer ring of the second transmission wheel (14), and the external gear (17) meshes with the first transmission wheel (13). The micro generator (12) has an annular groove (22) at one end of the rotor. A rotating plate (23) is fixedly mounted on the shaft at one end of the first transmission wheel (13). A pawl (24) is provided on the outer side of the rotating plate (23), and the pawl (24) is connected to the rotating plate (23) through a connecting shaft (25). The pawl (24) is adapted to the annular groove (22). A storage battery (19) is installed on one side inside the kinetic energy recovery mechanism (11). The output end of the micro generator (12) is electrically connected to the input end of the storage battery (19), and the output end of the storage battery (19) is electrically connected to the power input end of the cooling fan (4). The inner steel plate (7) is provided with heat dissipation holes (20) and there are several heat dissipation holes (20). The outer protective layer (8) and the movable outer shell (3) are provided with second corrugated rubber (21) at both the front and back. The second corrugated rubber (21) divides the interior of the movable outer shell (3) into two cavities. The heat dissipation holes (20) connect the two cavities. An air inlet is provided on the other side of the movable outer shell (3), and a filter screen (9) is installed inside the air inlet; The micro generator (12) is provided with a fixing frame (18) at both the upper and lower ends, and one end of the fixing frame (18) is fixed to the kinetic energy recovery mechanism (11); Fastening bolts (2) are provided at all four corners of the connecting steel plate (1).

2. The working method of the high-damping rubber bearing for seismic isolation of buildings according to claim 1, characterized in that: Includes the following steps: Step 1: When the building vibrates, the vibration force is gradually reduced by the cooperation of the vibration isolation rubber (6) and the inner steel plate (7). At this time, the upper and lower connecting steel plates (1) are squeezed by the vibration force on the damping buffer (10), causing the telescopic end of the damping buffer (10) to move. Step 2: During the movement, the rack (16) on one side will drive the central gear (15) to rotate under the meshing action, thereby driving the second transmission wheel (14) to rotate. Under the meshing of its external gear (17) and the first transmission wheel (13) on the micro generator (12), the first transmission wheel (13) will rotate. In this process, the first transmission wheel (13) is accelerated by the cooperation between the gears. Step 3: As the first transmission wheel (13) rotates, the pawl (24) is thrown off by centrifugal force, so that the pawl (24) engages with the annular slot (22). At this time, the first transmission wheel (13) drives the rotor in the micro generator (12) to rotate in the magnetic field. The magnetic field passes through the stator coil and forms a cutting magnetic field, which converts mechanical energy into electrical energy. The electrical energy is then stored in the battery (19). Conversely, under normal conditions, the damping buffer (10) will not move without vibration. Therefore, due to insufficient power, the heat dissipation mechanism cannot be turned on, thus achieving energy saving. Step 4: Discharge when the set charge is reached, forming a negative pressure inside the movable housing (3), and exhausting the heat in the vibration isolation mechanism to the outside through the heat dissipation hole (20), while the outside air enters the interior through the air inlet on the other side of the movable housing (3), thereby cooling the vibration isolation rubber (6) and the inner steel plate (7).

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