Adjustable Damping Shock Absorber for Multi-Story Buildings and Its Shock Absorption Method

Abstract

The present invention relates to the technical field of building shock absorption, and more specifically, to an adjustable damping shock absorber for multi-story buildings and its shock absorption method, including: a piston rod assembly, the piston rod assembly is connected to a piston disk that is hermetically slid in a cylinder shell, and the piston disk that divides the oil chamber of the cylinder shell into a left chamber and a right chamber is provided with an oil passage hole for communicating the left chamber and the right chamber, and the middle part of the piston rod assembly is hermetically slid on an end cover one at one end of the cylinder shell; on the outer side surface of the cylinder shell, there are provided a left connection port for connecting the left chamber and a right connection port for connecting the right chamber, and the left connection port and the right connection port are connected through a damping adjustment oil passage whose opening amplitude can be adjusted. The setting of the damping adjustment oil passage effectively increases the flow path of the oil in the oil chamber of the cylinder shell. When the vibration amplitude is large, the flow path of the oil and the opening of the valve are increased, the flow velocity of the oil is increased, and the vibration energy can be more effectively absorbed and dissipated.

Description

Technical Field

[0001] The present invention relates to the technical field of building shock absorption, and more specifically, to an adjustable damping shock absorber for multi-story buildings and a shock absorption method thereof. Background Art

[0002] Earthquakes are one of the main natural disasters threatening the safety of major engineering structures. Therefore, structural shock absorption control has become an effective measure for disaster prevention and mitigation in civil engineering. The traditional method of simply relying on the damage of structural components to resist the action of external adverse loads has gradually developed towards passive energy dissipation shock absorption technology and active, semi-active and intelligent control technologies. Among them, the application of passive energy dissipation shock absorption theory and technology has the characteristics of strong energy dissipation and shock absorption function, stable performance, high cost performance, etc. for building structures, and has been widely studied and applied internationally. Currently, commonly used passive control systems include base isolation and energy dissipation shock absorption, etc. However, the damping of existing shock absorption devices is usually in a fixed state and does not have the function of adjusting the damping according to different vibration amplitudes, and it cannot be better applied to vibrations of different intensities. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an adjustable damping shock absorber for multi-story buildings and a shock absorption method thereof.

[0004] The technical solution adopted by the present invention is as follows:

[0005] An adjustable damping shock absorber for multi-story buildings, comprising: a piston rod assembly, the piston rod assembly is connected to a piston disk that is hermetically slid in a cylinder shell, and the piston disk that divides the oil chamber of the cylinder shell into a left chamber and a right chamber is provided with an oil through hole for communicating the left chamber and the right chamber. The middle of the piston rod assembly is hermetically slid on an end cover one at one end of the cylinder shell, and the end cover two at the other end of the cylinder shell is movably connected to a second connecting portion for connecting to a building foundation; on the outer side surface of the cylinder shell, there are provided a left connection port for connecting to the left chamber and a right connection port for connecting to the right chamber, and the left connection port and the right connection port are connected by a damping adjustment oil path whose opening amplitude can be adjusted.

[0006] Further, the middle of the oil through hole is an inner wall of a circular ring, and both ends of the oil through hole are inner walls of conical rings. The diameter of the connection end of the inner wall of the conical ring and the inner wall of the circular ring is smaller than the diameter of the other end of the inner wall of the conical ring.

[0007] Further, the piston rod assembly includes: a piston rod body connected to the piston disk, one end of the piston rod body far from the piston disk is rotatably connected to a first connecting portion; a fixed ring body fixed on the piston rod body is connected to one end of a damping spring, and the other end of the damping spring is connected to a moving ring body rotatably arranged on an adjusting pipe. The adjusting pipe is threadedly connected to the outer threaded surface of a guiding pipe outside the end cover one; the piston rod body is hermetically slid in the rod passing hole of the end cover one and the guiding pipe.

[0008] Further, the first connecting portion includes: a first connecting frame for connecting the upper structure of the building and a hinged pipe connected below the first connecting frame, and the hinged pipe is rotatably connected to the piston rod body.

[0009] Further, the adjustable damping shock absorber for multi-story buildings further includes: an auxiliary shock absorption assembly; the auxiliary shock absorption assembly includes: a pressure-bearing shaft rotatably arranged in the hinged pipe, the pressure-bearing shaft is connected to a pressure-bearing seat, and both ends of a pressure-bearing horizontal shaft fixedly arranged below the pressure-bearing seat are slidably arranged in two horizontal sliding grooves of a pressure-bearing sliding groove frame; the pressure-bearing sliding groove frame is slidably arranged on a plurality of vertical shafts, the plurality of vertical shafts are fixedly arranged on an auxiliary connecting frame for connecting the building foundation, and an auxiliary shock absorption spring is sleeved on the shaft body between the pressure-bearing sliding groove frame and the auxiliary connecting frame; an axial protrusion fixedly arranged on the vertical shaft is clamped above the pressure-bearing sliding groove frame.

[0010] Further, the damping adjustment oil circuit includes: a left oil pipe connected to the left connection port, a right oil pipe connected to the right connection port, a flow control valve housing connected between the left oil pipe and the right oil pipe, and a regulating valve plate hermetically slidably arranged in an opening on the outer side surface of the flow control valve housing. One end of the regulating valve plate blocking in the flow control chamber of the flow control valve housing is fixedly connected with an anti-disengagement block, and one end of the regulating valve plate passing out of the flow control valve housing is rotatably connected to one end of a flow control connecting rod, and the other end of the flow control connecting rod is connected to a flow control ring slidably arranged on the outer side surface of the cylinder housing; a regulating spring for keeping the regulating valve plate blocking in the flow control chamber of the flow control valve housing is fixedly arranged between the flow control ring and a side seat two fixedly arranged on the second end cover; a plurality of heat dissipation fins are arranged on the outer pipe surfaces of the left oil pipe and the right oil pipe.

[0011] Further, a side seat one is fixedly arranged on the first end cover, a lead screw body installed between the side seat one and the side seat two passes through a circular hole of the flow control ring, and a current-limiting nut threadedly connected to the lead screw body is clamped on the side surface of the flow control ring away from the regulating spring.

[0012] Further, the adjustable damping shock absorber for multi-story buildings further includes: an oil circuit regulator; the oil circuit regulator includes: an upper rack, a guiding plate, a gear and a lower rack; one end of the guiding plate is fixedly arranged on a fixed ring body, and the upper rack is installed in a groove on the lower surface of the other end of the guiding plate; the upper rack is located above the gear, and when the fixed ring body moves in a direction away from the first end cover to a preset distance, the rack teeth on the lower surface of the upper rack are meshed and contacted with the gear; the gear is rotatably arranged on two side plates on the outer side surface of the cylinder housing through a wheel shaft, and the lower part of the gear is meshed with a lower rack fixedly arranged on the flow control ring.

[0013] Further, the guiding plate is slidably arranged between the two side plates, and an inner arc-shaped sliding surface slidably matched with the outer side surface of the cylinder housing is arranged on the side surface of the guiding plate away from the upper rack; a metal friction block frictionally matched with the outer side surface of the cylinder housing is slidably arranged in a sliding block groove opened on the inner arc-shaped sliding surface, the metal friction block is rotatably connected to an adjusting screw rod threadedly connected to the guiding plate, and a tension spring is sleeved on the rod body of the adjusting screw rod located between the metal friction block and the inner side surface of the sliding block groove.

[0014] A damping method, applied to the adjustable damping shock absorber for multi-story buildings, the method comprising:

[0015] One end of the piston rod assembly is movably connected to the upper structure of the building, and the second end cap is movably connected to the second connecting portion for connecting the building foundation;

[0016] When the upper structure of the building vibrates, the upper structure of the building drives the piston disk to slide in the barrel oil chamber through the piston rod assembly, so that the oil in the barrel oil chamber reciprocally flows between the left chamber and the right chamber through the oil through holes of the piston disk;

[0017] When the amplitude of vibration of the upper structure of the building is greater than a preset amplitude, the opening amplitude of the damping adjustment oil circuit is increased, so that the oil in the barrel oil chamber synchronously reciprocally flows between the left chamber and the right chamber through the damping adjustment oil circuit.

[0018] As can be seen from the above solution, the beneficial effects of the present invention are as follows:

[0019] In the adjustable damping shock absorber for multi-story buildings of the present invention, in addition to the oil in the barrel oil chamber reciprocally moving between the left chamber and the right chamber through the oil through holes of the piston disk to absorb energy and reduce vibration, the oil can also flow through the damping adjustment oil circuit with adjustable opening amplitude. The setting of the damping adjustment oil circuit effectively increases the flow path of the oil in the barrel oil chamber. When the vibration amplitude is large, the flow path of the oil and the valve opening are increased, the flow velocity of the oil is increased, the response speed of the shock absorber is increased, and the vibration energy can be more effectively absorbed and dissipated, reducing the bounce and sway of the shock absorption.

[0020] To make the above objects, features and advantages of the present invention more obvious and understandable, the following specifically gives preferred embodiments and, in conjunction with the accompanying drawings, the detailed description is as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0022] Figure 1 is a schematic diagram of the adjustable damping shock absorber for multi-story buildings provided by the embodiment of the present invention Figure 1 ;

[0023] Figure 2 is a schematic diagram of the adjustable damping shock absorber for multi-story buildings provided by the embodiment of the present invention Figure 2 ;

[0024] Figure 3 is a schematic diagram of the adjustable damping shock absorber for multi-story buildings provided by the embodiment of the present invention Figure 3;

[0025] Figure 4 Cross-sectional view of the adjustable damping shock absorber for multi-story buildings provided by the embodiment of the present invention;

[0026] Figure 5 Schematic diagram of the piston rod assembly provided by the embodiment of the present invention;

[0027] Figure 6 Schematic diagram of the cylinder shell provided by the embodiment of the present invention;

[0028] Figure 7 Schematic diagram of the piston disc provided by the embodiment of the present invention;

[0029] Figure 8 Schematic diagram of the damping adjustment oil circuit provided by the embodiment of the present invention;

[0030] Figure 9 Partial cross-sectional view of the damping adjustment oil circuit provided by the embodiment of the present invention;

[0031] Figure 10 Schematic diagram of the first connection part provided by the embodiment of the present invention;

[0032] Figure 11 Schematic diagram of the auxiliary shock absorption assembly provided by the embodiment of the present invention;

[0033] Figure 12 Partial schematic diagram provided by the embodiment of the present invention;

[0034] Figure 13 Schematic diagram of the oil circuit regulator provided by the embodiment of the present invention.

[0035] Icon: Piston rod assembly 100; Piston rod body 101; Fixed ring body 102; Damping spring 103; Adjusting tube 104; Moving ring body 105; Cylinder shell 200; First end cover 201; Second end cover 202; Left mounting port 203; Right mounting port 204; Guide tube 205; Piston disc 300; Oil fluid through hole 301; Second connection part 400; Damping adjustment oil circuit 500; Left oil circuit pipe 501; Right oil circuit pipe 502; Flow control valve housing 503; Regulating valve plate 504; Flow control connecting rod 505; Flow control ring 506; Regulating spring 507; Lead screw body 508; Current limiting nut 509; First connection part 600; First connection frame 601; Hinged tube 602; Auxiliary shock absorption assembly 700; Bearing shaft 701; Bearing seat 702; Bearing transverse shaft 703; Bearing sliding groove frame 704; Vertical shaft 705; Auxiliary connection frame 706; Auxiliary shock absorption spring 707; Oil circuit regulator 800; Upper rack 801; Guide plate 802; Gear 803; Lower rack 804. Detailed implementation manners

[0036] In order to clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention, it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] It should be understood that the terms such as "having", "including", and "comprising" used herein do not exclude the existence or addition of one or more other elements or their combinations.

[0038] Please refer to Figure 1-13 , the present invention provides a technical solution:

[0039] Embodiment 1

[0040] As Figure 1-13 shown, an adjustable damping shock absorber for multi-story buildings includes: a piston rod assembly 100, the piston rod assembly 100 is connected to a piston disk 300 that is hermetically slid in a cylinder shell 200. The piston disk 300 that divides the oil chamber of the cylinder shell 200 into a left chamber and a right chamber is provided with an oil through hole 301 for communicating the left chamber and the right chamber. The middle of the piston rod assembly 100 is hermetically slid on an end cover one 201 at one end of the cylinder shell 200. An end cover two 202 at the other end of the cylinder shell 200 is movably connected to a second connecting portion 400 for connecting to the building foundation; on the outer side surface of the cylinder shell 200, there are a left connection port 203 for connecting to the left chamber and a right connection port 204 for connecting to the right chamber. The left connection port 203 and the right connection port 204 are connected through a damping adjustment oil circuit 500 whose opening amplitude can be adjusted.

[0041] The working principle and technical effects of the above technical solution are:

[0042] The adjustable damping shock absorber for multi-story buildings of the present invention has a piston rod assembly 100 that is rotatably connected to a first connection portion 600 for connecting to the upper structure of the building, and an end cover 202 that is movably connected to a second connection portion 400 for connecting to the foundation of the building. After installation is completed, when vibration occurs, the upper structure of the building drives one end of the piston rod assembly 100 to move through the first connection portion 600, and the other end of the piston rod assembly 100 drives the piston disc 300 to slide in the left and right directions in the oil chamber of the cylinder shell 200, so that the damping oil flows back and forth in the left chamber and the right chamber through the oil through hole 301. The flow of the oil provides a damping effect, absorbs and dissipates vibration energy, and thus plays a role in energy absorption and shock reduction. The present invention is installed at a key position of the building structure, and can be used in conjunction with the installation of a vibration sensor to effectively monitor the actual vibration condition of the building and adjust the damping coefficient according to the condition. When the vibration amplitude is low, there is no need to open the damping. The damping adjustment oil circuit 500 is provided. At this time, the present invention provides a certain stiffness and additional damping for the upper structure of the building under the action of a small earthquake, reduces the dynamic response of the structure, and puts the overall structure in an elastic state; when encountering a moderate earthquake or a strong earthquake, the damping adjustment oil circuit 500 is opened to increase the damping ratio of the structure, so that the damping oil can also flow through the damping adjustment oil circuit 500 at the same time. The setting of the damping adjustment oil circuit 500 effectively increases the flow path of the oil in the oil chamber of the cylinder shell. When the vibration amplitude is large, the flow path of the oil and the valve opening are increased, the flow speed of the oil is increased, and the response speed of the shock absorber is increased. It can more effectively absorb and dissipate vibration energy, consume more energy input into the building by the earthquake, reduce the bounce and shaking of the shock absorber, and can adjust the damping coefficient according to the actual vibration data to achieve the best shock absorption effect, significantly improve the seismic performance of multi-story buildings, and achieve the stability and comfort of the building structure under the premise of ensuring safety.

[0043] The middle of the oil through hole 301 is a circular inner wall, and both ends of the oil through hole 301 are conical inner walls. The diameter of the connecting end of the conical inner wall and the circular inner wall is smaller than the diameter of the other end of the conical inner wall. Both ends of the oil through hole 301 are tapered ring inner walls. This design makes the flow path gradually narrower and wider when the oil passes through the oil through hole 301. The gradual flow path design helps to smoothly transition the flow of the oil and reduce the energy loss and pressure mutation of the fluid when passing through a narrow area; the middle part of the oil through hole 301 is a circular ring inner wall. This design provides a relatively stable and uniform flow path in the middle area of ​​the oil through hole 301, which helps to maintain the stable flow of the oil in the middle area; the tapered ring inner wall design at both ends of the oil through hole 301 makes the flow path gradually change when the oil enters and leaves the through hole, which can enhance the dynamic effect of the fluid and make it easier for the oil to form eddies and turbulence when passing through the oil through hole 301. The eddies and turbulence can more effectively absorb and dissipate vibration energy, improve the energy absorption effect of the shock absorber, and significantly improve the overall performance of the shock absorber.

[0044] The piston rod assembly 100 includes: a piston rod body 101 connected to the piston disc 300, and one end of the piston rod body 101 away from the piston disc 300 is rotatably connected to the first connecting portion 600; a fixed ring body 102 fixedly provided on the piston rod body 101 is connected to one end of a damping spring 103, and the other end of the damping spring 103 is connected to a moving ring body 105 rotatably provided on an adjusting pipe 104, and the adjusting pipe 104 is threadedly connected to the external thread surface of a guiding pipe 205 outside the first end cover 201; the piston rod body 101 is hermetically and slidably arranged in the rod passing hole of the first end cover 201 and the guiding pipe 205.

[0045] One end of the piston rod body 101 away from the piston disc 300 is rotatably connected to the first connecting portion 600. This design provides flexibility, allowing the piston rod body 101 to rotate at a certain angle during vibration, so as to better adapt to the movement of the building; the piston rod body 101 is connected to the piston disc 300, enabling the piston rod body 101 to effectively transmit vibration energy. The piston rod body 101 moves under the drive of the first connecting portion 600, thereby driving the piston disc 300 to perform a sliding movement in the oil chamber; the fixed ring body 102 is fixed on the piston rod body 101 and is connected to one end of the damping spring 103, and the other end of the damping spring 103 is connected to the moving ring body 105. This design enables the damping spring 103 to provide an additional damping force, further reducing the vibration amplitude of the building and improving the shock absorption performance; the adjusting pipe 104 is threadedly connected to the external thread surface of the guiding pipe 205 outside the first end cover 201. This design allows the compression degree of the damping spring to be adjusted by rotating the adjusting pipe 104, thereby changing the damping coefficient to adapt to different vibration conditions; the moving ring body 105 is rotatably arranged on the adjusting pipe 104. This design enables the moving ring body 105 to perform relative movement during the rotation of the adjusting pipe 104, further increasing the flexibility of damping adjustment; the piston rod body 101 is hermetically and slidably arranged in the rod passing hole of the first end cover 201 and the guiding pipe 205. This design ensures the sealing performance of the piston rod during sliding, prevents oil leakage, and at the same time ensures the smooth sliding of the piston rod and avoids jamming; the design of the piston rod assembly 100 realizes structural stability, damping adjustment, adjustability, sealing and sliding performance, and the convenience of installation and maintenance. These designs enable the shock absorber to more effectively absorb and dissipate vibration energy, improve the seismic performance of the building, and at the same time provide flexible damping adjustment ability to adapt to different vibration environments.

[0046] The first connecting part 600 includes: a first connecting frame 601 for connecting the upper structure of the building and a hinge pipe 602 connected below the first connecting frame 601. The hinge pipe 602 is rotatably connected to the piston rod body 101. The rotational connection between the hinge pipe 602 and the piston rod body 101 enables the piston rod body 101 to rotate at a certain angle in the horizontal direction. When the building is vibrated, it can better adapt to the movement mode of the building and reduce the stress concentration and structural damage caused by rigid connection.

[0047] The adjustable damping shock absorber for multi-story buildings further includes: an auxiliary shock absorption assembly 700; the auxiliary shock absorption assembly 700 includes: a pressure-bearing shaft 701 rotatably arranged in the hinge pipe 602, the pressure-bearing shaft 701 is connected to a pressure-bearing seat 702, and both ends of a pressure-bearing horizontal shaft 703 fixedly arranged below the pressure-bearing seat 702 are slidably arranged in two horizontal chutes of a pressure-bearing chute frame 704; the pressure-bearing chute frame 704 is slidably arranged on multiple vertical shafts 705, the multiple vertical shafts 705 are fixedly arranged on an auxiliary connecting frame 706 for connecting the building foundation, and auxiliary shock absorption springs 707 are sleeved on the shafts of the vertical shafts 705 located between the pressure-bearing chute frame 704 and the auxiliary connecting frame 706; an axial protrusion fixedly arranged on the vertical shaft 705 is clamped above the pressure-bearing chute frame 704.

[0048] The auxiliary shock absorption assembly 700 plays an auxiliary role in longitudinal buffering and energy absorption. When the building vibrates up and down, the hinge pipe 602 generates pressure on the pressure-bearing shaft 701, the pressure-bearing shaft 701 generates pressure on the pressure-bearing seat 702, and when the pressure-bearing seat 702 moves downward, it can generate a downward pressure on the pressure-bearing chute frame 704 through the pressure-bearing horizontal shaft 703. The pressure-bearing chute frame 704 compresses the auxiliary shock absorption springs 707 on the multiple vertical shafts 705, so as to play a role in energy absorption and shock reduction through the multiple auxiliary shock absorption springs 707. Moreover, both ends of the pressure-bearing horizontal shaft 703 are slidably arranged in the two horizontal chutes of the pressure-bearing chute frame 704, so that it does not affect the left-right movement of the connection end of the piston rod body 101 and the hinge pipe 602. When the piston rod body 101 moves in the left-right direction, both ends of the pressure-bearing horizontal shaft 703 slide in the two horizontal chutes of the pressure-bearing chute frame 704 without generating obstruction; allowing the pressure-bearing horizontal shaft 703 to slide horizontally in the pressure-bearing chute frame 704 enhances the adaptability and stability of the structure; the auxiliary shock absorption springs 707 are sleeved on the shafts of the vertical shafts 705 located between the pressure-bearing chute frame 704 and the auxiliary connecting frame 706, providing additional elastic support, capable of absorbing and dispersing energy when vibration occurs, and further enhancing the shock reduction effect; the axial protrusion fixedly arranged on the vertical shaft 705 is clamped above the pressure-bearing chute frame 704, providing additional limit and support to ensure that the pressure-bearing chute frame 704 does not undergo excessive displacement during the sliding process, enhancing the stability of the structure.

[0049] The damping adjustment oil circuit 500 includes: a left oil pipe 501 connected to the left mounting port 203, a right oil pipe 502 connected to the right mounting port 204, a flow control valve housing 503 connected between the left oil pipe 501 and the right oil pipe 502, and a regulating valve plate 504 slidably sealed in the opening on the outer side surface of the flow control valve housing 503. One end of the regulating valve plate 504 blocking the flow control chamber of the flow control valve housing 503 is fixedly connected with an anti-disengagement block. One end of the regulating valve plate 504 extending out of the flow control valve housing 503 is rotatably connected to one end of a flow control connecting rod 505, and the other end of the flow control connecting rod 505 is connected to a flow control ring 506 slidably arranged on the outer side surface of the cylinder housing 200; A regulating spring 507 for keeping the regulating valve plate 504 blocking the flow control chamber of the flow control valve housing 503 is fixedly arranged between the flow control ring 506 and the side seat two fixedly arranged on the second end cover 202; A plurality of heat dissipation fins are arranged on the outer pipe surfaces of the left oil pipe 501 and the right oil pipe 502. A side seat one is fixedly arranged on the first end cover 201. A lead screw body 508 installed between the side seat one and the side seat two is arranged in the circular hole of the flow control ring 506, and a current limiting nut 509 threadedly connected to the lead screw body 508 is clamped on the side surface of the flow control ring 506 away from the regulating spring 507.

[0050] When the vibration amplitude is relatively large, in order to further enhance the damping effect and improve the energy dissipation and shock absorption capacity, the damping adjustment oil circuit 500 is opened, and the control valve plate 504 is controlled to release the blockage of the flow regulation chamber of the flow regulation valve housing 503. At this time, the flow regulation valve housing 503 is connected between the left oil pipe 501 and the right oil pipe 502, and the damping oil can flow through the oil passage formed between the left oil pipe 501, the flow regulation valve housing 503 and the right oil pipe 502 to form a flow regulation chamber for controlling the flow rate and damping force of the oil; the control valve plate 504 is hermetically slidably arranged at the opening on the outer side of the flow regulation valve housing 503, and one end blocked in the flow regulation chamber of the flow regulation valve housing 503 is fixedly connected with an anti-disengagement block to prevent the control valve plate 504 from disengaging. One end of the control valve plate 504 extending out of the flow regulation valve housing 503 is rotatably connected to one end of the flow control connecting rod 505, and the movement of the control valve plate 504 is realized through the flow control connecting rod 505, so as to adjust the opening amplitude of the flow regulation chamber of the flow regulation valve housing 503, change the flow rate and damping force of the oil, and meet the requirements of different vibration conditions; the flow control connecting rod 505 is connected to the flow control ring 506 slidably arranged on the outer side of the cylinder housing 200, and the position of the control valve plate 504 is controlled by moving the flow control ring 506, so as to adjust the flow rate and damping force of the oil; the control spring 507 is fixedly arranged between the flow control ring 506 and the side seat two on the second end cover 202 to provide additional elastic support, keep the control valve plate 504 blocked in the flow regulation chamber of the flow regulation valve housing 503, and ensure the stability and safety of the oil flow; and the settings of the left oil pipe 501 and the right oil pipe 502 enable the oil to flow not only in the cylinder housing 200, but also in the left oil pipe 501 and the right oil pipe 502, increasing the contact effect with the outside air, effectively dissipating heat, and a plurality of heat dissipation fins are arranged on the outer pipe surfaces of the left oil pipe 501 and the right oil pipe 502 to increase the heat dissipation area, further improving the heat dissipation effect of the oil and ensuring the stable performance of the oil in a high-temperature environment; after adjusting the opening amplitude of the flow regulation chamber of the flow regulation valve housing 503, the flow limiting nut 509 threadedly connected to the lead screw body 508 is controlled to be clamped on the side of the flow control ring 506 away from the control spring 507, and at this time, the relative position limit of the control valve plate 504 is completed to ensure the flow effect of the oil; through the setting of the control valve plate 504, the damping adjustment oil circuit 500 can accurately control the flow rate and damping force of the oil, adapt to different vibration environments and requirements, and improve the adjustment accuracy and flexibility of the shock absorber; the setting of the control spring 507 ensures that the control valve plate 504 is always blocked in the flow regulation chamber of the flow regulation valve housing 503, maintaining the stability of the oil flow and avoiding adverse effects caused by loosening or falling off of the control valve plate 504; the modular design of the damping adjustment oil circuit 500 makes the operation and maintenance more convenient. The damping force can be adjusted by moving the flow control ring 506, and the connection and fixation design of each component ensure the reliability and durability of the system, enabling the shock absorber to more accurately control the oil flow, adapt to different vibration environments, and improve the performance and reliability of the overall system.

[0051] The adjustable damping shock absorber for multi-storey buildings further includes: an oil circuit regulator 800; the oil circuit regulator 800 includes: an upper rack 801, a guide plate 802, a gear 803 and a lower rack 804; one end of the guide plate 802 is fixedly arranged on the fixed ring body 102, and the upper rack 801 is installed in the groove on the lower surface of the other end of the guide plate 802; the upper rack 801 is located above the gear 803, and when the fixed ring body 102 moves away from the end cover one 201 to a preset distance, the rack teeth on the lower surface of the upper rack 801 are in meshing contact with the gear 803; the gear 803 is rotatably arranged on two side plates on the outer side of the cylinder shell 200 through a wheel shaft, and the lower part of the gear 803 is meshed with the lower rack 804 fixedly arranged on the flow control ring 506.

[0052] When the vibration amplitude is small, since the distance that the first connecting part 600 connecting the upper structure of the building drives the piston rod assembly 100 to move is small, at this time, the amplitude that the fixed ring body 102 moves to drive the guide plate 802 to move is small, and the upper rack 801 in the groove of the guide plate 802 will not be in meshing contact with the gear 803. At this time, the oil circuit regulator 800 does not work, and the damping of the adjustable damping shock absorber for multi-storey buildings of the present invention will not be automatically adjusted;

[0053] When the vibration amplitude is large, that is, greater than the preset vibration amplitude, the moving distance of the piston rod assembly 100 increases, and the moving distance of the piston rod assembly 100 driving the piston disc 300 to move also increases. When the fixed ring body 102 moves away from the end cover one 201 to a preset distance, the rack teeth on the lower surface of the upper rack 801 are in meshing contact with the gear 803. At this time, as the upper rack 801 continues to move away from the cylinder shell 200, the upper rack 801 drives the lower rack 804 to move away from the fixed ring body 102 through the meshing transmission of the gear 803. The lower rack 804 pushes the flow control ring 506 to slide on the cylinder shell 200, and one end of the flow control link 505 is pushed by the flow control ring 506 to move towards the flow control valve housing 503, and the other end of the flow control link 505 drives the regulating valve plate 504 to move towards the outside of the flow control valve housing 503, realizing a large opening of the flow control valve housing 503, facilitating the effective adjustment of the damping effect and adapting to the shock absorption requirements under different conditions.

[0054] The guide plate 802 is slidably arranged between two side plates, and an inner arc-shaped sliding surface that is slidably engaged with the outer side surface of the cylinder shell 200 is provided on the side surface of the guide plate 802 away from the upper rack 801; a metal friction block that is frictionally engaged with the outer side surface of the cylinder shell 200 is slidably arranged in a slider groove formed on the inner arc-shaped sliding surface, the metal friction block is rotationally connected to an adjusting screw rod that is threadedly connected to the guide plate 802, and a tension spring is sleeved on the rod body of the adjusting screw rod located between the metal friction block and the inner side surface of the slider groove. An inner arc-shaped sliding surface that is slidably engaged with the outer side surface of the cylinder shell 200 is provided on the side surface of the guide plate 802 away from the upper rack 801, which improves the stability of the movement of the guide plate 802. A metal friction block that is frictionally engaged with the outer side surface of the cylinder shell 200 is slidably arranged in a slider groove formed on the inner arc-shaped sliding surface, and the metal friction block rubs against the outer side surface of the cylinder shell 200, generating additional damping force through the frictional force, which can effectively absorb and disperse the energy generated by the building during vibration and reduce the vibration amplitude of the structure; the adjusting screw rod is threadedly connected to the guide plate 802, and by rotating the adjusting screw rod, the frictional force between the metal friction block and the outer side surface of the cylinder shell 200 can be adjusted; this adjustment mechanism enables the damping force to be flexibly adjusted according to the actual vibration situation to adapt to different vibration environments and requirements; the tension spring provides additional elastic support to ensure that the metal friction block always maintains a stable contact pressure with the outer side surface of the cylinder shell 200 and avoids fluctuations in the frictional force caused by vibration. The guide plate 802 is slidably arranged between two side plates, and its inner arc-shaped sliding surface is slidably engaged with the outer side surface of the cylinder shell 200, enabling the guide plate 802 to move relatively stably during vibration, further dispersing and absorbing vibration energy, and improving the stability and safety of the structure.

[0055] Embodiment Two

[0056] As Figure 1-13 shown, a shock absorption method is applied to the adjustable damping shock absorber for multi-story buildings, and this method includes:

[0057] One end of the piston rod assembly 100 is movably connected to the upper structure of the building, and the second end cover 202 is movably connected to a second connecting portion 400 for connecting the building foundation;

[0058] When the upper structure of the building vibrates, the upper structure of the building drives the piston disc 300 to slide in the oil chamber of the cylinder shell 200 through the piston rod assembly 100, so that the oil in the oil chamber of the cylinder shell 200 reciprocally flows between the left chamber and the right chamber through the oil through holes 301 of the piston disc 300;

[0059] When the vibration amplitude of the upper structure of the building is greater than a preset amplitude, the opening amplitude of the damping adjustment oil circuit 500 is adjusted to be larger, so that the oil in the oil chamber of the cylinder shell 200 synchronously reciprocally flows between the left chamber and the right chamber through the damping adjustment oil circuit 500.

[0060] In the shock absorption method of the adjustable damping shock absorber for multi-story buildings of the present invention, the oil in the oil chamber of the cylinder shell can not only reciprocate in the left chamber and the right chamber through the oil through hole 301 of the piston disk 300 to absorb energy and reduce shock, but can also flow through the damping adjustment oil circuit 500 whose opening amplitude can be adjusted. The setting of the damping adjustment oil circuit 500 effectively increases the flow path of the oil in the oil chamber of the cylinder shell. When the vibration amplitude is large, the flow path of the oil and the valve opening are increased, the flow speed of the oil is increased, and the response speed of the shock absorber is increased, which can more effectively absorb and dissipate vibration energy and reduce the bounce and shaking of the shock absorber.

[0061] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An adjustable damping shock absorber for multi-story buildings, characterized in that: include: A piston rod assembly, the piston rod assembly is connected to a piston disk sealably slidably arranged in the cylinder shell, an oil through hole for connecting the left chamber and the right chamber is provided on the piston disk which divides the oil chamber of the cylinder shell into a left chamber and a right chamber, the middle part of the piston rod assembly is sealably slidably arranged on an end cover 1 at one end of the cylinder shell, and an end cover 2 at the other end of the cylinder shell is movably connected to a second connection part for connecting to the foundation of a building; a left receiving port for connecting to the left chamber and a right receiving port for connecting to the right chamber are provided on the outer surface of the cylinder shell, and the left receiving port and the right receiving port are connected through a damping adjustment oil circuit which can adjust the opening amplitude; The piston rod assembly comprises: a piston rod body connected to the piston disc, one end of the piston rod body away from the piston disc is rotatably connected to the first connecting portion; a fixed ring body fixed on the piston rod body is connected to one end of the damping spring, the other end of the damping spring is connected to a movable ring body rotatably arranged on the adjusting tube, and the adjusting tube is threadedly connected to the outer thread surface of the guide tube outside the end cover; the piston rod body is sealed and slidably arranged in the rod penetration hole of the end cover and the guide tube; The damping adjustment oil circuit includes: a left oil circuit pipe connected to the left connecting port, a right oil circuit pipe connected to the right connecting port, a flow regulating valve shell connected between the left oil circuit pipe and the right oil circuit pipe, and a regulating valve plate sealingly and slidingly arranged on the opening of the outer side of the flow regulating valve shell, one end of the regulating valve plate sealing in the flow regulating chamber of the flow regulating valve shell is fixedly connected to an anti-dropping block, one end of the regulating valve plate passing through the outside of the flow regulating valve shell is rotatably connected to one end of a flow control connecting rod, and the other end of the flow control connecting rod is connected to a flow control ring slidably arranged on the outer side of the cylinder shell; a regulating spring for keeping the regulating valve plate sealed in the flow regulating chamber of the flow regulating valve shell is fixedly arranged between the flow control ring and the side seat 2 fixedly arranged on the end cover 2; a plurality of heat dissipation fins are arranged on the outer tube surfaces of the left oil circuit pipe and the right oil circuit pipe; A side seat 1 is fixed on the end cover 1, a lead screw body installed between the side seat 1 and the side seat 2 is inserted into the circular hole of the flow control ring, and a current limiting nut threadedly connected to the lead screw body is clamped on the side of the flow control ring away from the regulating spring; It also includes: an oil circuit regulator; the oil circuit regulator includes: an upper rack, a guide plate, a gear and a lower rack; one end of the guide plate is fixed on the fixed ring body, and the upper rack is installed in the groove on the lower surface of the other end of the guide plate; the upper rack is located above the gear, and when the fixed ring body moves in a direction away from the end cover to a preset distance, the rack teeth on the lower surface of the upper rack mesh with the gear; the gear is rotated on the two side plates on the outer side of the cylinder shell through the wheel shaft, and the lower part of the gear meshes with the lower rack fixed on the flow control ring.

2. The adjustable damping shock absorber for multi-story buildings according to claim 1, characterized in that: The middle of the oil through hole is the inner wall of the circular ring, and both ends of the oil through hole are the inner walls of the cone ring. The diameter of the connecting end of the cone ring inner wall and the circular ring inner wall is smaller than the diameter of the other end of the cone ring inner wall.

3. The adjustable damping shock absorber for multi-story buildings according to claim 1, characterized in that: The first connecting part comprises: a first connecting frame for connecting the upper structure of the building and a hinged tube connected below the first connecting frame, and the hinged tube is rotatably connected to the piston rod body.

4. The adjustable damping shock absorber for multi-story buildings according to claim 3, characterized in that: Also includes: Auxiliary shock absorbing components; The auxiliary shock-absorbing assembly includes: a pressure-bearing shaft rotated in a hinged tube, the pressure-bearing shaft is connected to a pressure-bearing seat, and the two ends of the pressure-bearing horizontal shaft fixed under the pressure-bearing seat are slid in two horizontal slide grooves of a pressure-bearing slide groove frame; the pressure-bearing slide groove frame is slid on multiple vertical shafts, and the multiple vertical shafts are fixed on an auxiliary connecting frame used to connect to the foundation of a building, and an auxiliary shock-absorbing spring is sleeved on the shaft body of the vertical shaft located between the pressure-bearing slide groove frame and the auxiliary connecting frame; the axial protrusion fixed on the vertical shaft is clamped above the pressure-bearing slide groove frame.

5. The adjustable damping shock absorber for multi-story buildings according to claim 1, characterized in that: The guide plate is slidably arranged between the two side plates, and an inner arc-shaped sliding surface which slides with the outer side surface of the cylinder shell is provided on the side surface of the guide plate away from the upper rack; a metal friction block which frictionally cooperates with the outer side surface of the cylinder shell is slidably arranged in the slider groove opened on the inner arc-shaped sliding surface, and the metal friction block is rotatably connected to the tightening screw which is threadedly connected to the guide plate, and a tensioning spring is sleeved on the rod body of the tightening screw which is located between the metal friction block and the inner side surface of the slider groove.

6. A shock absorption method, applied to the adjustable damping shock absorber for multi-story buildings according to any one of claims 1 to 5, characterized in that: The method includes: One end of the piston rod assembly is movably connected to the upper structure of the building, and the second end cap is movably connected to the second connecting part used for connecting to the foundation of the building; When the upper structure of the building vibrates, the upper structure of the building drives the piston disc to slide in the oil chamber of the cylinder shell through the piston rod assembly, so that the oil in the oil chamber of the cylinder shell flows back and forth in the left chamber and the right chamber through the oil through hole of the piston disc; When the vibration amplitude of the building superstructure is greater than the preset amplitude, the opening amplitude of the damping adjustment oil circuit is increased, so that the oil in the oil chamber of the cylinder shell synchronously flows back and forth in the left chamber and the right chamber through the damping adjustment oil circuit.

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