Damping-adjustable shock absorber for multi-story building and shock absorption method thereof

Abstract

The invention relates to the technical field of building shock absorption, in particular to an adjustable damping shock absorber for a multi-story building and a shock absorption method of the adjustable damping shock absorber for the multi-story building. An oil liquid through hole for communicating the left chamber with the right chamber is formed in the piston disc which divides the oil liquid chamber of the barrel shell into the left chamber and the right chamber; the middle part of the piston rod assembly is arranged on an end cover I at one end of the barrel shell in a sealing and sliding manner; a left connecting opening used for being connected with the left cavity and a right connecting opening used for being connected with the right cavity are formed in the outer side face of the barrel shell, and the left connecting opening and the right connecting opening are connected through a damping adjusting oil way capable of adjusting the opening amplitude. Due to the arrangement of the damping adjusting oil way, the flowing path of oil in the oil cavity of the barrel shell is effectively increased, when the vibration amplitude is large, the flowing path of the oil and the opening degree of the valve are increased, the flowing speed of the oil is increased, and vibration energy can be more effectively absorbed and dissipated.

Description

Technical Field

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

[0002] Earthquake is one of the main natural disasters that threaten the safety of major engineering structures. Therefore, structural shock control has become an effective measure for disaster prevention and mitigation in civil engineering. The traditional reliance on structural component damage to resist adverse external loads has gradually developed into passive energy-absorbing shock-absorbing technology and active, semi-active and intelligent control technology. Among them, the application of passive energy-absorbing shock-absorbing theory and technology has been widely studied and applied internationally because it enables building structures to have strong energy-absorbing shock-absorbing functions, stable performance, and high cost-effectiveness. Currently, commonly used passive control systems include foundation isolation and energy-absorbing shock-absorbing. However, the damping of existing shock-absorbing devices is usually fixed, and does not have the function of adjusting the damping according to different vibration amplitudes, and 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 a multi-story building and a shock absorbing method thereof.

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

[0005] An adjustable damping shock absorber for multi-story buildings comprises: a piston rod assembly, the piston rod assembly is connected to a piston disk seal-slidingly arranged in a cylinder shell, an oil through hole for connecting the left chamber and the right chamber is arranged 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 seal-slidingly 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 a foundation of a building; a left connecting port for connecting to the left chamber and a right connecting port for connecting to the right chamber are arranged on the outer surface of the cylinder shell, and the left connecting port and the right connecting port are connected through a damping adjustment oil circuit which can adjust the opening amplitude.

[0006] Furthermore, the middle of the oil through hole is the circular inner wall, both ends of the oil through hole are the conical ring inner walls, and the diameter of the connecting end of the conical ring inner wall and the circular ring inner wall is smaller than the diameter of the other end of the conical ring inner wall.

[0007] Furthermore, the piston rod assembly includes: a piston rod body connected to the piston disk, one end of the piston rod body away from the piston disk is rotatably connected to the first connecting part; 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 moving ring body rotatably arranged on the adjusting tube, and the adjusting tube is threadedly connected to the external thread surface of the guide tube on the outside of the end cover; the piston rod body is sealed and slidably arranged in the rod through hole of the end cover and the guide tube.

[0008] Furthermore, the first connecting part includes: 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.

[0009] Furthermore, the adjustable damping shock absorber for multi-story buildings also includes: an auxiliary shock-absorbing assembly; 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 the building, and an auxiliary shock-absorbing spring is sleeved on the shaft body of the vertical shaft located between the pressure slide groove frame and the auxiliary connecting frame; the axial protrusion fixed on the vertical shaft is clamped above the pressure slide groove frame.

[0010] Furthermore, 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 slidably arranged on the outer side opening of the flow regulating valve shell, one end of the regulating valve plate sealed in the flow regulating chamber of the flow regulating valve shell is fixedly connected to an anti-detachment block, one end of the regulating valve plate extending outside 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 fixed on the end cover 2; a plurality of cooling fins are arranged on the outer tube surfaces of the left oil circuit pipe and the right oil circuit pipe.

[0011] Furthermore, a side seat one is fixed on the end cover one, a lead screw body installed between the side seat one and the side seat two is passed through 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.

[0012] Furthermore, the adjustable damping shock absorber for multi-story buildings 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 axle, and the lower part of the gear meshes with the lower rack fixed on the flow control ring.

[0013] Furthermore, the guide plate is slidably arranged between the two side plates, and an inner arc-shaped sliding surface that 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 that 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 threadedly connected to the guide plate, and a tensioning spring is sleeved on the rod body of the tightening screw located between the metal friction block and the inner side surface of the slider groove.

[0014] A shock absorption method is 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 part used for connecting to the foundation of the building;

[0016] 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;

[0017] 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.

[0018] It can be seen from the above scheme that the beneficial effects of the present invention are:

[0019] In 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 absorb energy and reduce shock by reciprocating in the left chamber and the right chamber through the oil through hole of the piston disk, but also flow through the damping adjustment oil circuit whose opening amplitude can be adjusted. The setting of the damping adjustment oil circuit 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, so that the vibration energy can be more effectively absorbed and dissipated, and the bounce and shaking of the shock absorber can be reduced.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying 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 of the present invention. In the accompanying drawings:

[0022] Figure 1 Schematic diagram of an adjustable damping shock absorber for a multi-story building provided by an embodiment of the present invention Figure 1 ;

[0023] Figure 2 Schematic diagram of an adjustable damping shock absorber for a multi-story building provided by an embodiment of the present invention Figure 2 ;

[0024] Figure 3 Schematic diagram of an adjustable damping shock absorber for a multi-story building provided by an embodiment of the present invention Figure 3;

[0025] Figure 4 A cross-sectional view of an adjustable damping shock absorber for a multi-story building provided by an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of a piston rod assembly provided by an embodiment of the present invention;

[0027] Figure 6 A schematic diagram of a cartridge shell provided in an embodiment of the present invention;

[0028] Figure 7 A schematic diagram of a piston disc provided in an embodiment of the present invention;

[0029] Figure 8 A schematic diagram of a damping adjustment oil circuit provided by an embodiment of the present invention;

[0030] Fig. 9 A partial cross-sectional view of a damping adjustment oil circuit provided by an embodiment of the present invention;

[0031] Fig.10 A schematic diagram of a first connecting portion provided by an embodiment of the present invention;

[0032] Fig.11 A schematic diagram of an auxiliary shock absorbing assembly provided in an embodiment of the present invention;

[0033] Fig.12 A partial schematic diagram provided for an embodiment of the present invention;

[0034] Fig.13 A schematic diagram of an oil circuit regulator provided in an embodiment of the present invention.

[0035] Icons: 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; end cover 1 201; end cover 202; left connecting port 203; right connecting port 204; guide tube 205; piston plate 300; oil through hole 301; second connecting part 400; damping adjusting oil circuit 500; left oil circuit pipe 501; right oil circuit pipe 502; flow regulating valve shell 503; regulating valve plate 504; control flow connection Rod 505; flow control ring 506; regulating spring 507; screw body 508; flow limiting nut 509; first connecting part 600; first connecting frame 601; hinged tube 602; auxiliary shock absorbing assembly 700; pressure-bearing shaft 701; pressure-bearing seat 702; pressure-bearing horizontal axis 703; pressure-bearing slide frame 704; vertical axis 705; auxiliary connecting frame 706; auxiliary shock absorbing spring 707; oil circuit regulator 800; upper rack 801; guide plate 802; gear 803; lower rack 804. DETAILED DESCRIPTION

[0036] In order to clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention, it is obvious that the described embodiments are only 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 ordinary technicians in this field without creative work are within the scope of protection 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 combinations thereof.

[0038] See also Figure 1-13 , the present invention provides a technical solution:

[0039] Embodiment 1

[0040] like Figure 1-13 As 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 disc 300 seal-slidingly arranged in a cylinder shell 200, an oil through hole 301 for connecting the left chamber and the right chamber is provided on the piston disc 300 which divides the oil chamber of the cylinder shell 200 into a left chamber and a right chamber, the middle part of the piston rod assembly 100 is seal-slidingly arranged on an end cover 1 201 at one end of the cylinder shell 200, and an end cover 202 at the other end of the cylinder shell 200 is movably connected to a second connecting part 400 for connecting to the foundation of the building; a left receiving port 203 for connecting to the left chamber and a right receiving port 204 for connecting to the right chamber are provided on the outer surface of the cylinder shell 200, and the left receiving port 203 and the right receiving port 204 are connected by a damping adjustment oil circuit 500 which can adjust the opening amplitude.

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

[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 part 600; a fixed ring body 102 fixed 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 movable ring body 105 rotated on an adjusting tube 104, and the adjusting tube 104 is threadedly connected to the outer thread surface of a guide tube 205 on the outside of an end cover 201; the piston rod body 101 is sealingly slidably arranged in the rod through hole of the end cover 201 and the guide tube 205.

[0045] The end of the piston rod body 101 away from the piston disc 300 is rotatably connected to the first connecting part 600. This design provides flexibility and allows the piston rod body 101 to rotate at a certain angle during the vibration process, so as to better adapt to the movement of the building; the piston rod body 101 is connected to the piston disc 300, so that the piston rod body 101 can effectively transmit vibration energy. The piston rod body 101 moves under the drive of the first connecting part 600, thereby driving the piston disc 300 to slide in the oil chamber; the fixed ring body 102 is fixed on the piston rod body 101 and connected to one end of the damping spring 103, and the other end of the damping spring 103 is connected to the dynamic ring body 105. This design enables the damping spring 103 to provide additional damping force, further reduce the vibration amplitude of the building, and improve the shock absorption performance; the adjusting tube 1 04 is threadedly connected to the outer thread surface of the guide tube 205 on the outside of the end cover 201. This design allows the compression degree of the damping spring to be adjusted by rotating the adjusting tube 104, thereby changing the damping coefficient to adapt to different vibration conditions; the dynamic ring body 105 is rotatably set on the adjusting tube 104. This design enables the dynamic ring body 105 to move relatively during the rotation of the adjusting tube 104, further increasing the flexibility of damping adjustment; the piston rod body 101 is sealed and slidably set in the rod hole of the end cover 201 and the guide tube 205. This design ensures the sealing performance of the piston rod during the sliding process, prevents oil leakage, and ensures the smooth sliding of the piston rod to avoid jamming; the design of the piston rod assembly 100 realizes structural stability, damping adjustment, adjustability, sealing and sliding performance, and convenience of installation and maintenance. These designs enable the shock absorber to absorb and dissipate vibration energy more effectively, improve the seismic performance of the building, and provide flexible damping adjustment capabilities to adapt to different vibration environments.

[0046] The first connection part 600 includes: a first connection frame 601 for connecting the upper structure of the building and a hinged tube 602 connected below the first connection frame 601, and the hinged tube 602 is rotatably connected to the piston rod body 101. The hinged tube 602 is rotatably connected to the piston rod body 101, so that the piston rod body 101 can rotate at a certain angle in the horizontal direction, and 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 the rigid connection.

[0047] The adjustable damping shock absorber for multi-story buildings also includes: an auxiliary shock absorbing assembly 700; the auxiliary shock absorbing assembly 700 includes: a pressure-bearing shaft 701 rotated in the hinged tube 602, the pressure-bearing shaft 701 is connected to the pressure-bearing seat 702, and the two ends of the pressure-bearing transverse shaft 703 fixed below the pressure-bearing seat 702 are slid in the two horizontal slide grooves of the pressure-bearing slide groove frame 704; the pressure-bearing slide groove frame 704 is slid on multiple vertical shafts 705, and the multiple vertical shafts 705 are fixed on the auxiliary connecting frame 706 for connecting to the foundation of the building, and the vertical shaft 705 is located between the pressure slide groove frame 704 and the auxiliary connecting frame 706. An auxiliary shock absorbing spring 707 is sleeved on the shaft body; the axial protrusion fixed on the vertical shaft 705 is clamped above the pressure slide groove frame 704.

[0048] The auxiliary shock-absorbing assembly 700 assists in playing the role of longitudinal buffering and energy absorption. When the building vibrates up and down, the articulated tube 602 generates pressure on the pressure-bearing shaft 701, and the pressure-bearing shaft 701 generates pressure on the pressure-bearing seat 702. When the pressure-bearing seat 702 moves downward, it can generate downward pressure on the pressure-bearing slide slot frame 704 through the pressure-bearing transverse axis 703. The pressure-bearing slide slot frame 704 compresses the auxiliary shock-absorbing springs 707 on the multiple vertical shafts 705, thereby playing the role of energy absorption and shock absorption through the multiple auxiliary shock-absorbing springs 707, and the two ends of the pressure-bearing transverse axis 703 are slidably arranged in the two horizontal slide slots of the pressure-bearing slide slot frame 704, so that it does not affect the left and right movement of the piston rod body 101 and the connecting end of the articulated tube 602. The piston rod body 101 moves left and right When the bearing is moved in the same direction, the two ends of the pressure-bearing horizontal axis 703 slide in the two horizontal grooves of the pressure-bearing slide groove frame 704 without any obstruction; the pressure-bearing horizontal axis 703 is allowed to slide horizontally in the pressure-bearing slide groove frame 704, thereby enhancing the adaptability and stability of the structure; the vertical axis 705 is located between the pressure-bearing slide groove frame 704 and the auxiliary connecting frame 706, and an auxiliary shock-absorbing spring 707 is sleeved on the axis body, providing additional elastic support, which can absorb and disperse energy when vibration occurs, thereby further enhancing the shock-absorbing effect; the axial protrusion fixed on the vertical axis 705 is clamped above the pressure-bearing slide groove frame 704, thereby providing additional limiting and support, thereby ensuring that the pressure-bearing slide groove frame 704 will not be excessively displaced during the sliding process, thereby enhancing the stability of the structure.

[0049] The damping adjustment oil circuit 500 includes: a left oil circuit pipe 501 connected to the left connecting port 203, a right oil circuit pipe 502 connected to the right connecting port 204, a flow regulating valve housing 503 connected between the left oil circuit pipe 501 and the right oil circuit pipe 502, and a regulating valve plate 504 sealingly slidably arranged on the outer side opening of the flow regulating valve housing 503, one end of the regulating valve plate 504 sealed in the flow regulating chamber of the flow regulating valve housing 503 is fixedly connected to an anti-dropping block, and the regulating valve plate 504 passes through One end of the flow regulating valve housing 503 is rotatably connected to one end of the flow control connecting rod 505, and the other end of 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; a control spring 507 is fixed between the flow control ring 506 and the side seat 2 fixed on the end cover 202, which is used to keep the regulating valve plate 504 sealed in the flow regulating chamber of the flow regulating valve housing 503; multiple heat dissipation fins are arranged on the outer tube surface of the left oil pipe 501 and the right oil pipe 502. A side seat 1 is fixed on the end cover 1 201, and a lead screw body 508 installed between the side seat 1 and the side seat 2 is inserted into the circular hole of the flow control ring 506, and a flow limiting nut 509 threadedly connected to the lead screw body 508 is clamped on the side of the flow control ring 506 away from the control spring 507.

[0050] When the vibration amplitude is 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 regulating valve plate 504 is controlled to release the blockage of the flow regulating chamber of the flow regulating valve housing 503. At this time, the flow regulating valve housing 503 is connected between the left oil circuit pipe 501 and the right oil circuit pipe 502, and the damping oil can flow through the oil channel formed between the left oil circuit pipe 501, the flow regulating valve housing 503 and the right oil circuit pipe 502 to form a flow regulating chamber for controlling the flow speed and damping force of the oil; the regulating valve plate 504 is sealingly slidably arranged at the opening on the outer side of the flow regulating valve housing 503, and one end of the flow regulating chamber sealed in the flow regulating chamber of the flow regulating valve housing 503 is fixedly connected to an anti-detachment block to prevent the regulating valve plate 504 from detaching. One end of the regulating valve plate 504 extending out of the flow regulating valve housing 503 is rotatably connected to one end of the flow control connecting rod 505, and the movement of the regulating valve plate 504 is realized through the flow control connecting rod 505, thereby adjusting the opening amplitude of the flow regulating chamber of the flow regulating valve housing 503, changing the flow speed and damping force of the oil, and meeting the needs 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 regulating valve plate 504 is controlled by moving the flow control ring 506, thereby adjusting the flow speed and damping force of the oil; the regulating spring 507 is fixedly arranged on the flow control ring 50 6 and the side seat 2 on the end cover 202 provide additional elastic support to keep the regulating valve plate 504 sealed in the regulating chamber of the regulating valve housing 503, ensuring the stability and safety of the oil flow; and the arrangement of the left oil pipe 501 and the right oil pipe 502 allows 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 and effectively dissipating heat, and the outer tube surfaces of the left oil pipe 501 and the right oil pipe 502 are arranged with a plurality of heat dissipation fins to increase the heat dissipation area, further improving the oil The heat dissipation effect ensures the stable performance of the oil in a high temperature environment; after adjusting the opening amplitude of the flow regulating chamber of the flow regulating valve housing 503, the flow limiting nut 509 threadedly connected to the lead screw body 508 is clamped on the side of the flow control ring 506 away from the regulating spring 507. At this time, the relative position limit of the regulating valve plate 504 is completed to ensure the flow effect of the oil; by adjusting the setting of the valve plate 504, the damping adjustment oil circuit 500 can accurately control the flow speed 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 regulating spring 507 ensures that the regulating valve plate 504 is always sealed in the flow regulating chamber of the flow regulating valve housing 503, thereby maintaining the stability of the oil flow and avoiding adverse effects caused by loosening or falling off of the regulating valve plate 504; the modular design of the damping adjustment oil circuit 500 makes operation and maintenance easier, and the damping force can be adjusted by moving the flow control ring 506, and the connection and fixing design of each component ensures the reliability and durability of the system, so that the shock absorber can control the oil flow more accurately, adapt to different vibration environments, and improve the performance and reliability of the overall system.

[0051] The adjustable damping shock absorber for multi-story buildings also 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 fixed 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 to a preset distance away from the end cover 201, the rack teeth on the lower surface of the upper rack 801 are in meshing contact with the gear 803; the gear 803 is rotated on the two side plates on the outer side of the cylinder shell 200 through the wheel axle, and the lower part of the gear 803 is meshed with the lower rack 804 fixed on the flow control ring 506.

[0052] When the vibration amplitude is small, since the first connection part 600 connected to the upper structure of the building drives the piston rod assembly 100 to move a small distance, the fixed ring body 102 drives the guide plate 802 to move a small amplitude, and the upper rack 801 in the groove of the guide plate 802 will not mesh 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-story 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 movement distance of the piston rod assembly 100 increases, and the movement distance of the piston disc 300 driven by the piston rod assembly 100 also increases. When the fixed ring body 102 moves to a preset distance in the direction away from the end cover 201, the rack teeth on the lower surface of the upper rack 801 engage with the gear 803. At this time, as the upper rack 801 continues to move in the direction away from the cylinder shell 200, the upper rack 801 engages with the gear 803 to drive the lower rack 804 to move in the direction away from the fixed ring body 102, and the lower rack 804 pushes the flow control ring 506 to slide on the cylinder shell 200. The flow control ring 506 pushes one end of the flow control connecting rod 505 to move in the direction of the flow regulating valve shell 503, and the other end of the flow control connecting rod 505 drives the regulating valve plate 504 to move toward the outside of the flow regulating valve shell 503, thereby realizing a large-scale opening of the flow regulating valve shell 503, which is convenient for effectively adjusting the damping effect and adapting to the shock absorption requirements under different conditions.

[0054] The guide plate 802 is slidably arranged between the two side plates, and an inner arc-shaped sliding surface that slides 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 frictionally cooperates with the outer side surface of the cylinder shell 200 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 threadedly connected to the guide plate 802, and a tensioning spring is sleeved on the rod body of the tightening screw located between the metal friction block and the inner side surface of the slider groove. An inner arc-shaped sliding surface that slides with the outer side of the cylinder shell 200 is provided on the side surface of the guide plate 802 away from the upper rack 801, thereby improving the stability of the movement of the guide plate 802. A metal friction block that slides with the outer side of the cylinder shell 200 is provided in the slider groove opened on the inner arc-shaped sliding surface. The metal friction block rubs against the outer side of the cylinder shell 200, and generates additional damping force through friction, which can effectively absorb and disperse the energy generated by the building during vibration and reduce the vibration amplitude of the structure. The tightening screw is threadedly connected to the guide plate 802. By rotating the tightening screw, the friction between the metal friction block and the outer side of the cylinder shell 200 can be adjusted. This adjustment mechanism allows the damping force to be flexibly adjusted according to the actual vibration situation to adapt to different vibration environments and needs. The tensioning spring provides additional elastic support to ensure that the metal friction block always maintains a stable contact pressure with the outer side of the cylinder shell 200 to avoid friction fluctuations caused by vibration. The guide plate 802 is slidably disposed between the two side plates, and its inner arc-shaped sliding surface is slidably matched with the outer surface of the cylinder shell 200, so that the guide plate 802 can move relatively stably during vibration, further disperse and absorb vibration energy, and improve the stability and safety of the structure.

[0055] Embodiment 2

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

[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 the second connecting portion 400 for connecting to the foundation of the building;

[0058] When the upper structure of the building vibrates, the upper structure of the building drives the piston plate 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 flows back and forth in the left chamber and the right chamber through the oil through hole 301 of the piston plate 300;

[0059] When the vibration amplitude of the building superstructure is greater than the preset amplitude, the opening amplitude of the damping adjustment oil circuit 500 is increased, so that the oil in the oil chamber of the cylinder shell 200 synchronously flows back and forth in 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: The piston rod assembly is connected to a piston disk sealably slidably arranged in the cylinder shell, and 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 connecting port for connecting to the left chamber and a right connecting port for connecting to the right chamber are provided on the outer side surface of the cylinder shell, and the left connecting port and the right connecting port are connected by a damping adjustment oil circuit which can adjust the opening amplitude.

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 piston rod assembly includes: a piston rod body connected to the piston disk, and one end of the piston rod body away from the piston disk is rotatably connected to the first connecting part; a fixed ring body fixed on the piston rod body is connected to one end of the damping spring, and the other end of the damping spring is connected to a moving ring body rotatably arranged on the adjusting tube, and the adjusting tube is threadedly connected to the external thread surface of the guide tube outside the end cover; the piston rod body is sealed and slidably arranged in the rod through hole of the end cover and the guide tube.

4. The adjustable damping shock absorber for multi-story buildings according to claim 3, 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.

5. The adjustable damping shock absorber for multi-story buildings according to claim 4, 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.

6. The adjustable damping shock absorber for multi-story buildings according to claim 3, characterized in that: 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 slidably arranged on the outer side opening of the flow regulating valve shell, one end of the regulating valve plate sealed 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 fixed 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.

7. The adjustable damping shock absorber for multi-story buildings according to claim 6, characterized in that: A side seat one is fixed on the end cover one, a lead screw body installed between the side seat one and the side seat two is passed through 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.

8. The adjustable damping shock absorber for multi-story buildings according to claim 7, characterized in that: Also includes: 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 to a preset distance away from the end cover, the rack teeth on the lower surface of the upper rack are in meshing contact 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 is meshed with the lower rack fixed on the flow control ring.

9. The adjustable damping shock absorber for multi-story buildings according to claim 8, 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.

10. A shock absorption method, applied to the adjustable damping shock absorber for multi-story buildings according to any one of claims 1 to 9, 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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