Hydraulic displacement amplification damper

Abstract

The utility model provides a hydraulic displacement amplification damper. The hydraulic displacement amplification damper comprises a viscous damper part and a fixed end arranged at one end of the viscous damper part, the end, away from the fixed end, of the viscous damper part is fixedly connected with a displacement amplification part, and a piston rod is arranged in the viscous damper part; the displacement amplification part comprises an amplification shell, a movable assembly and an amplification assembly, a large-diameter cavity and a small-diameter cavity are formed in the amplification shell, and the inner end of the movable assembly is arranged in the large-diameter cavity and is in sliding sealing with the inner side face of the large-diameter cavity. According to the hydraulic displacement amplification damper, a displacement amplification structure is introduced into the damper, input displacement can be effectively amplified, the energy consumption effect of the damper is improved, and the hydraulic displacement amplification damper has the advantage of being good in heat dissipation effect.

Description

Technical Field

[0001] This utility model relates to the field of earthquake-resistant equipment technology, and in particular to a hydraulic displacement amplification damper. Background Technology

[0002] With the increasing complexity and height of modern building structures, seismic design has become particularly important in building engineering. Traditional seismic measures include strengthening structural stiffness and using seismic isolation devices to reduce the amplitude of structural vibrations caused by earthquakes. Among these, dampers, as an important vibration damping device, can reduce the destructive impact of earthquakes on structures by dissipating vibration energy. Currently, dampers are widely used in structures such as buildings and bridges to increase structural damping and enhance seismic performance.

[0003] Existing dampers include various types, such as viscous dampers, friction dampers, and yield dampers. A viscous damper is a device that dissipates energy using fluid resistance; it reduces structural vibration by generating resistance through the movement of a piston in a fluid medium. Viscous dampers are simple in structure and can respond quickly within the seismic vibration cycle, making them a commonly used energy dissipation device in seismic engineering. However, the typically short stroke of viscous dampers limits their energy dissipation capacity. In applications requiring large displacements, such as the seismic design of high-rise buildings or bridges, ordinary viscous dampers cannot meet the ideal energy dissipation requirements.

[0004] Therefore, it is necessary to provide a hydraulic displacement amplification damper to solve the above-mentioned technical problems. Utility Model Content

[0005] The technical problem solved by this utility model is to provide a hydraulic displacement amplification damper that effectively amplifies the input displacement by introducing a displacement amplification structure into the damper, thereby improving the energy dissipation effect of the damper and having a good heat dissipation effect.

[0006] To solve the above technical problems, the present invention provides a hydraulic displacement amplification damper, comprising: a viscous damper part and a fixed end disposed at one end of the viscous damper part, wherein a displacement amplification part is fixedly connected to the end of the viscous damper part away from the fixed end, and a piston rod is disposed inside the viscous damper part.

[0007] The displacement amplification section includes: an amplification housing, a movable component, and an amplification component. The amplification housing has a large-diameter cavity and a small-diameter cavity. The inner end of the movable component is disposed in the large-diameter cavity and is slidably sealed to the inner surface of the large-diameter cavity. The inner end of the amplification component is disposed in the small-diameter cavity and is slidably sealed to the inner surface of the small-diameter cavity. The large-diameter cavity communicates with the small-diameter cavity. An incompressible fluid is filled between the inner end face of the movable component and the inner end face of the amplification component. The inner diameter of the large-diameter cavity is larger than the inner diameter of the small-diameter cavity.

[0008] The outer end of the movable component is disposed outside the amplification housing and connected to a movable end; the outer end of the amplification component is disposed inside the viscous damper portion and connected to the piston rod.

[0009] Preferably, the viscous damper includes: a viscous housing, a piston, and a piston rod. The viscous housing has a hollow cavity. The piston is disposed in the hollow cavity and is slidably sealed to the inner side of the hollow cavity. The middle part of the piston rod is fixedly connected to the piston. The piston rod is slidably sealed to the viscous housing. The viscous housing is filled with a compressible fluid, and the compressible fluid is evenly distributed on both sides of the piston.

[0010] Preferably, the movable component includes: a movable plug, an inner movable rod, and an outer movable rod. The movable plug is disposed in the large-diameter cavity and slides and seals against the inner surface of the large-diameter cavity. One end of the inner movable rod is fixedly connected to the movable plug, and one end of the outer movable rod is fixedly connected to the movable plug and the other end is connected to the movable end.

[0011] The amplification assembly includes: an amplifying plug and an amplifying rod. The amplifying plug is disposed in the small-diameter cavity and is slidably sealed to the inner surface of the small-diameter cavity. The inner surface of the amplifying plug is provided with a deep hole adapted to the inner movable rod. One end of the inner movable rod away from the movable plug extends into the deep hole. The inner movable rod is slidably sealed to the deep hole. One end of the amplifying rod is fixedly connected to the amplifying plug, and the other end is connected to the piston rod.

[0012] An incompressible fluid is provided between the movable plug and the enlarged plug.

[0013] Preferably, the movable plug, the inner movable rod, and the outer movable rod are integrally formed, and the amplifying plug, the amplifying rod, and the piston rod are integrally formed.

[0014] Preferably, the viscous shell is provided with a first cavity, and the end of the movable plug away from the inner movable rod is located in the first cavity. The viscous shell is provided with a second cavity, and the end of the amplifying plug away from the movable plug is located in the second cavity. Both the first cavity and the second cavity are filled with incompressible fluid.

[0015] The outer movable rod, the movable plug, and the inner movable rod are provided with a first flow channel connecting the first cavity and the deep hole, and the amplifying rod is provided with a second flow channel connecting the second cavity and the deep hole. The first cavity and the second cavity are connected through the first flow channel, the deep hole, and the second flow channel.

[0016] Preferably, the outer wall of the viscous shell has two arc-shaped grooves, each of which is provided with an arc-shaped tile. Thermally conductive silicone is filled between the arc-shaped grooves and the arc-shaped tiles. Multiple heat dissipation fins are fixedly connected to the outer wall of the arc-shaped tiles. The outer wall of the viscous shell is provided with multiple sets of clamping mechanisms for fixing the arc-shaped tiles.

[0017] Preferably, the inner wall of the arc-shaped tile is provided with multiple strip-shaped grooves.

[0018] Preferably, two positioning pins are fixedly installed in the arc-shaped groove, and two positioning holes are opened on the arc-shaped tile. The two positioning pins pass through the corresponding positioning holes and are slidably connected to the inner wall of the corresponding positioning holes.

[0019] Preferably, the clamping mechanism includes a fixed shaft, a rotating arm, a screw, and a clamping head. The fixed shaft is fixedly installed on the outer wall of the viscous shell. The rotating arm is rotatably sleeved on the fixed shaft. The screw passes through and is threaded onto the rotating arm. The clamping head is rotatably installed on one end of the screw near the viscous shell. The clamping head contacts the arc-shaped tile.

[0020] Compared with related technologies, the hydraulic displacement amplification damper provided by this utility model has the following beneficial effects:

[0021] This invention provides a hydraulic displacement amplification damper. By connecting the displacement amplification section to a viscous damper section, a large-diameter cavity and a small-diameter cavity are provided within the displacement amplification section, filled with incompressible fluid. This allows the displacement input into the large-diameter cavity to be transmitted to the small-diameter cavity through the fluid, amplifying the displacement and thus increasing the output piston rod displacement. This improves the damper's energy dissipation capacity and is suitable for earthquake-resistant building applications requiring high energy dissipation. The displacement amplification structure can convert a small input displacement into a large output displacement, significantly improving the damper's energy dissipation effect under large displacement input conditions.

[0022] This invention provides a hydraulic displacement amplification damper. Through the arrangement of two arc-shaped grooves, two arc-shaped tiles, and multiple heat dissipation fins, the heat dissipation area of ​​the viscous shell is effectively increased, thereby improving the heat dissipation rate. During an earthquake, this reduces the risk of the viscous shell bursting due to excessive internal heat accumulation in a short period. The multiple clamping mechanisms allow for quick fixing or release of the arc-shaped tiles, greatly facilitating the maintenance of the heat dissipation fins. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of the first embodiment of the hydraulic displacement amplification damper provided by this utility model;

[0024] Figure 2 for Figure 1 A schematic cross-sectional view of the hydraulic displacement amplification damper shown.

[0025] Figure 3 A schematic diagram of the structure of the second embodiment of the hydraulic displacement amplification damper provided by this utility model;

[0026] Figure 4 for Figure 3 An enlarged schematic diagram of part A shown;

[0027] Figure 5 for Figure 3 The diagram shows the structure of the clamping mechanism.

[0028] Figure 6 for Figure 3 The diagram shows the structure of the hydraulic displacement amplification damper after removing the arc-shaped tiles and heat dissipation fins.

[0029] Figure 7 for Figure 3 The diagram shows the structure of the arc-shaped tile.

[0030] The diagram labels are as follows: 1. Displacement amplification section; 2. Viscous damper section; 3. Moving end; 4. Fixed end; 11. Viscous shell; 12. Piston; 13. Piston rod; 14. Amplifying shell; 15. Moving plug; 16. Outer moving rod; 17. Inner moving rod; 18. Amplifying plug; 19. Amplifying rod; 20. Large-diameter cavity; 21. Small-diameter cavity; 22. First cavity; 23. Second cavity; 24. Deep hole; 25. First flow channel; 26. Sealing sleeve; 27. Arc-shaped tile; 28. Heat dissipation fins; 29. ​​Fixed shaft; 30. Rotating arm; 31. Screw; 32. Clamping head; 1101. Arc-shaped groove. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] First Embodiment

[0033] Please refer to the following: Figures 1-2 In the first embodiment of this utility model, the hydraulic displacement amplification damper includes: a viscous damper part 2 and a fixed end 4 disposed at one end of the viscous damper part 2. A displacement amplification part 1 is fixedly connected to the end of the viscous damper part 2 away from the fixed end 4. A piston rod 13 is disposed inside the viscous damper part 2.

[0034] The displacement amplification section 1 includes: an amplification housing 14, a movable component, and an amplification component. The amplification housing 14 is provided with a large-diameter cavity 20 and a small-diameter cavity 21. The inner end of the movable component is located in the large-diameter cavity 20 and is slidably sealed with the inner surface of the large-diameter cavity 20. The inner end of the amplification component is located in the small-diameter cavity 21 and is slidably sealed with the inner surface of the small-diameter cavity 21. The large-diameter cavity 20 and the small-diameter cavity 21 are in communication. An incompressible fluid (such as hydraulic oil) is filled between the inner end face of the movable component and the inner end face of the amplification component. The inner diameter of the large-diameter cavity 20 is larger than the inner diameter of the small-diameter cavity 21.

[0035] The outer end of the active component is located outside the amplification housing 14 and is connected to the active end 3. The outer end of the amplification component is located inside the viscous damper part 2 and is connected to the piston rod 13.

[0036] In this embodiment, the viscous damper part 2 specifically includes: a viscous shell 11, a piston 12, and a piston rod 13. The viscous shell 11 is provided with a hollow cavity. The piston 12 is disposed in the hollow cavity and is slidably sealed with the inner side of the hollow cavity. The middle part of the piston rod 13 is fixedly connected to the piston 12. The piston rod 13 is slidably sealed with the viscous shell 11. The viscous shell 11 is filled with a compressible fluid (e.g., a specific viscous liquid) to achieve energy dissipation, and the compressible fluid is evenly distributed on both sides of the piston 12.

[0037] In this embodiment, the movable component specifically includes: a movable plug 15, an inner movable rod 17, and an outer movable rod 16. The movable plug 15 is disposed in the large-diameter cavity 20 and slides and seals against the inner side of the large-diameter cavity 20. One end of the inner movable rod 17 is fixedly connected to the movable plug 15, and one end of the outer movable rod 16 is fixedly connected to the movable plug 15, while the other end is connected to the movable end 3. The movable plug 15, the inner movable rod 17, and the outer movable rod 16 are integrally formed.

[0038] The amplification assembly specifically includes: an amplifying plug 18 and an amplifying rod 19. The amplifying plug 18 is disposed in the small-diameter cavity 21 and is slidably sealed with the inner surface of the small-diameter cavity 21. The inner surface of the amplifying plug 18 is provided with a deep hole 24 adapted to the inner movable rod 17. The end of the inner movable rod 17 away from the movable plug 15 extends into the deep hole 24 and is slidably sealed with the deep hole 24. One end of the amplifying rod 19 is fixedly connected to the amplifying plug 18, and the other end is connected to the piston rod 13. The amplifying plug 18, the amplifying rod 19 and the piston rod 13 are integrally formed. The inner movable rod 17 is inserted into the amplifying plug 18 in the amplification assembly and is inserted into the deep hole 24 of the amplifying plug 18 by means of sliding seal, thereby maintaining a sealed coupling with the amplification assembly. The amplifying rod 19 is used to transmit the amplified displacement to the viscous damper part 2.

[0039] An incompressible fluid is provided between the movable plug 15 and the enlarged plug 18.

[0040] The central axes of piston 12, piston rod 13, hollow cavity, viscous shell 11, amplifying shell 14, moving component and amplifying component are all coincident. The first end of viscous shell 11 is fixedly connected to a sealing sleeve 26, and the fixed end 4 is fixedly installed on the sealing sleeve 26.

[0041] Preferably, a first cavity 22 is provided inside the viscous shell 11, and the end of the movable plug 15 away from the inner movable rod 17 is located inside the first cavity 22. A second cavity 23 is provided inside the viscous shell 11, and the end of the enlarged plug 18 away from the movable plug 15 is located inside the second cavity 23. Both the first cavity 22 and the second cavity 23 are filled with incompressible fluid.

[0042] The outer movable rod 16, the movable plug 15, and the inner movable rod 17 are provided with a first flow channel 25 connecting the first cavity 22 and the deep hole 24. The amplifying rod 19 is provided with a second flow channel connecting the second cavity 23 and the deep hole 24. The first cavity 22 and the second cavity 23 are connected through the first flow channel 25, the deep hole 24, and the second flow channel, forming a closed fluid transmission loop. When the amplifying plug 18 moves to the right in the small-diameter cavity 21, the incompressible fluid in the deep hole 24 and the connected second cavity 23 is compressed and flows through the first flow channel 25 and the second flow channel to the first cavity 22 in the large-diameter cavity 20. The fluid flow forms a pressure buffer system, so that the movable plug 15 and the amplifying plug 18 are always supported and limited by the incompressible fluid during vibration.

[0043] During vibration, the movable plug 15 and the amplifying plug 18 are limited by the first cavity 22 and the second cavity 23, preventing imbalance and loosening caused by violent displacement. The fluid pressure in the first cavity 22 and the second cavity 23 can be adjusted immediately upon impact, making the displacement process of the displacement amplification part 1 more stable in all directions, increasing the stability of the displacement amplification part 1, and thus improving the reliability and durability of the entire damper device in seismic applications.

[0044] When external vibrations act on the device, the displacement amplification section 1 transmits the amplified displacement to the viscous damper section 2, pushing the piston rod 13 to move back and forth within the hollow cavity of the viscous shell 11. Since the hollow cavity is filled with a compressible fluid, the movement of the piston 12 compresses or stretches the fluid, thereby generating damping force and consuming vibrational energy. An incompressible fluid is disposed between the inner surface of the movable plug 15 and the inner surface of the amplifying plug 18. The fluid's function is to couple the large-diameter cavity 20 and the small-diameter cavity 21, ensuring force transmission and energy dissipation during displacement amplification. Because the fluid is incompressible, when the movable end 3 moves, the fluid transmits the displacement from the movable plug 15 to the amplifying plug 18, achieving the displacement amplification effect.

[0045] When the movable end 3 is subjected to an external force and moves inward, the outer movable rod 16 transmits the displacement to the movable plug 15. The movable plug 15 pushes the incompressible fluid in the large-diameter cavity 20, and the fluid pressure is transmitted via the inner movable rod 17 to the amplifying plug 18 in the small-diameter cavity 21, causing the amplifying plug 18 to drive the amplifying rod 19 to move. Due to the cross-sectional area ratio of the large-diameter cavity 20 and the small-diameter cavity 21, the input displacement is proportionally amplified and transmitted to the piston rod 13 of the viscous damper section 2, thereby realizing the amplification of the input displacement.

[0046] In this embodiment:

[0047] The core working principle of the displacement amplification section 1 is based on the change in the cross-sectional area of ​​the fluid to achieve displacement amplification. That is, by utilizing the area difference between the large-diameter cavity 20 and the small-diameter cavity 21, the input displacement can be amplified to the output end by a certain factor. An incompressible fluid (such as hydraulic oil) fills the space between the large-diameter cavity 20 and the small-diameter cavity 21, forming a hydraulic coupling. Since the fluid is incompressible, when the movable end 3 applies displacement, the displacement is directly transmitted to the amplification component and the piston rod 13 through the fluid.

[0048] The large-diameter cavity 20 on the left has a larger cross-sectional area S1, and the small-diameter cavity 21 on the right has a smaller cross-sectional area S2. The ratio of their cross-sectional areas is the magnification factor N. Displacement amplification is achieved through the area difference between the large-diameter cavity 20 and the small-diameter cavity 21—when fluid flows from the large-diameter cavity 20 to the small-diameter cavity 21, the fluid velocity and the displacement of the piston rod 13 it drives are amplified, as shown in the reference. Figure 2This allows the input displacement on the left (e.g., 10 mm) to be amplified to 15 mm by a magnification factor (e.g., 1.5 times), thereby amplifying the travel of the piston rod 13 on the right. By increasing the travel, the damper can significantly improve its energy dissipation capacity, making it suitable for use in building structures with high seismic resistance requirements.

[0049] When the movable end 3 moves inward a distance X, the incompressible fluid inside the cavity is compressed, pushing the fluid in the small-diameter cavity 21 on the right to flow, which in turn pushes the piston rod 13 on the right to move. Since the cross-sectional area ratio of the large-diameter cavity 20 and the small-diameter cavity 21 is N, the displacement of the piston rod 13 on the right will be N×X, that is, displacement amplification is achieved.

[0050] When the movable end 3 moves outward, a certain internal pressure is formed inside the cavity. This internal pressure will pull the piston rod 13 to the left by a displacement of N×X. However, since the fluid pull is not easy to control in a vacuum, while the fluid at both ends of the amplification mechanism's cavity flows to the right, a certain thrust is generated at the right end. This thrust helps to further assist the right piston rod 13 in completing the required displacement.

[0051] Second embodiment:

[0052] Based on the hydraulic displacement amplification damper provided in the first embodiment of this application, the second embodiment of this application proposes another hydraulic displacement amplification damper. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0053] The second embodiment of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0054] Please refer to the following: Figures 3-7 In the hydraulic displacement amplification damper proposed in this embodiment, two arc-shaped grooves 1101 are formed on the outer wall of the viscous shell 11. Arc-shaped tiles 27 are provided in both arc-shaped grooves 1101. Thermally conductive silicone is filled between the arc-shaped grooves 1101 and the arc-shaped tiles 27. Multiple heat dissipation fins 28 are fixedly connected to the outer wall of the arc-shaped tiles 27. Multiple sets of clamping mechanisms for fixing the arc-shaped tiles 27 are provided on the outer wall of the viscous shell 11. During the earthquake, the piston 12 moves continuously left and right, squeezing the compressible fluid on both sides and converting the energy of the earthquake into heat energy and dissipating it. The heat is transferred to the arc-shaped tiles 27 through the viscous shell 11 and the thermally conductive silicone, and finally dissipated into the air through the multiple heat dissipation fins 28. This arrangement effectively increases the heat dissipation area, effectively improves the heat dissipation speed, and reduces the possibility of the viscous shell 11 bursting due to excessive heat accumulation inside in a short period of time.

[0055] In this embodiment, in order to increase the contact area between the arc-shaped outer sheet 27 and the thermally conductive silicone, multiple strip grooves are provided on the inner wall of the arc-shaped tile 27.

[0056] In this embodiment, when installing the arc-shaped tile 27, in order to position it, two positioning pins are fixedly installed in the arc-shaped groove 1101, and two positioning holes are opened on the arc-shaped tile 27. The two positioning pins pass through the corresponding positioning holes and are slidably connected to the inner wall of the corresponding positioning holes.

[0057] In this embodiment, there are eight sets of clamping mechanisms, which are respectively set near the four corners of each arc-shaped groove 1101. Each set of clamping mechanisms specifically includes a fixed shaft 29, a rotating arm 30, a screw 31, and a pressing head 32. The fixed shaft 29 is fixedly installed on the outer wall of the viscous shell 11. The rotating arm 30 is rotatably sleeved on the fixed shaft 29. The screw 31 passes through and is threadedly installed on the rotating arm 30. The pressing head 32 is rotatably installed on the end of the screw 31 near the viscous shell 11. The pressing head 32 is in contact with the arc-shaped tile 27. The pressing head 32 consists of a pressing block and a rubber sleeve. The pressing block is rotatably installed on the screw 31, and the rubber sleeve is fixedly sleeved on the pressing block.

[0058] In this embodiment:

[0059] During transportation, the two arc-shaped tiles 27 are stored separately to prevent the heat dissipation fins 28 from being crushed and deformed. After arriving at the installation site, the hydraulic displacement amplification damper is installed before the two arc-shaped tiles 27 are installed. Before installation, the screws 31 and clamping heads 32 on each clamping mechanism are rotated to one side of the arc groove 1101 to avoid the arc-shaped tiles 27. Then, an appropriate amount of thermally conductive silicone is applied to the arc-shaped tiles 27. After that, the arc-shaped tiles 27 are placed in the arc groove 1101 (during the placement process, the two positioning holes are aligned with the two positioning pins respectively). After the arc-shaped tiles 27 are placed, pressure is applied to them to make them fit tightly against the adhesive shell 11. During the clamping process, some thermally conductive silicone will enter the strip grooves on the arc-shaped tiles 27, thereby increasing the heat conduction area.

[0060] After completing the above operations, rotate the screw 31 and the clamping head 32 on each clamping mechanism to face the arc-shaped tile 27, and then turn each screw 31 clockwise in sequence. As the screw 31 rotates clockwise, it will gradually approach the arc-shaped tile 27. Driven by the screw 31, the clamping head 32 will eventually press against the arc-shaped tile 27, thus reliably fixing the arc-shaped tile 27.

[0061] During subsequent use, the curved tiles 27 can be removed periodically to clean the dust adhering to the heat dissipation fins 28, maintain the cleanliness of the heat dissipation fins 28, and ensure their heat dissipation efficiency.

[0062] In this embodiment:

[0063] The arrangement of two arc-shaped grooves 1101, two arc-shaped tiles 27, and multiple heat dissipation fins 28 effectively increases the heat dissipation area of ​​the viscous shell 11, thereby improving the heat dissipation speed. In the event of an earthquake, this reduces the risk of the viscous shell 11 bursting due to excessive internal heat accumulation in a short period of time. The multiple clamping mechanisms allow for quick fixing or release of the arc-shaped tiles 27, greatly facilitating the maintenance of the heat dissipation fins 28.

[0064] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A hydraulic displacement amplification damper comprising a viscous damper portion (2) and a fixed end (4) provided at one end of the viscous damper portion (2), characterized in that, The viscous damper part (2) is fixedly connected with the displacement amplification part (1) at one end away from the fixed end (4), and the viscous damper part (2) is provided with a piston rod (13) inside; The displacement amplification part (1) comprises an amplification shell (14), a movable assembly and an amplification assembly, the amplification shell (14) is provided with a large-diameter cavity (20) and a small-diameter cavity (21) inside, the inner end of the movable assembly is arranged in the large-diameter cavity (20) and is in sliding sealing with the inner side surface of the large-diameter cavity (20), the inner end of the amplification assembly is arranged in the small-diameter cavity (21) and is in sliding sealing with the inner side surface of the small-diameter cavity (21), the large-diameter cavity (20) is in communication with the small-diameter cavity (21), and the inner end surface of the movable assembly and the inner end surface of the amplification assembly are filled with incompressible fluid, and the inner diameter of the large-diameter cavity (20) is larger than the inner diameter of the small-diameter cavity (21); The outer end of the movable assembly is arranged outside the amplification shell (14) and is connected with a movable end (3), and the outer end of the amplification assembly is arranged in the viscous damper part (2) and is connected with the piston rod (13).

2. The hydraulic displacement amplification damper according to claim 1, wherein The viscous damper part (2) comprises a viscous shell (11), a piston (12) and a piston rod (13), the viscous shell (11) is provided with a hollow cavity inside, the piston (12) is arranged in the hollow cavity and is in sliding sealing with the inner side surface of the hollow cavity, the middle part of the piston rod (13) is fixedly connected with the piston (12), the piston rod (13) is in sliding sealing with the viscous shell (11), the viscous shell (11) is filled with compressible fluid, and the compressible fluid is uniformly distributed on both sides of the piston (12).

3. The hydraulic displacement amplification damper according to claim 2, wherein The movable assembly comprises a movable plug body (15), an inner movable rod (17) and an outer movable rod (16), the movable plug body (15) is arranged in the large-diameter cavity (20) and is in sliding sealing with the inner side surface of the large-diameter cavity (20), one end of the inner movable rod (17) is fixedly connected with the movable plug body (15), one end of the outer movable rod (16) is fixedly connected with the movable plug body (15), and the other end is connected with the movable end (3); The amplification assembly comprises an amplification plug body (18) and an amplification rod (19), the amplification plug body (18) is arranged in the small-diameter cavity (21) and is in sliding sealing with the inner side surface of the small-diameter cavity (21), the inner side surface of the amplification plug body (18) is provided with a deep hole (24) matched with the inner movable rod (17), one end of the inner movable rod (17) away from the movable plug body (15) extends into the deep hole (24), the inner movable rod (17) is in sliding sealing with the deep hole (24), one end of the amplification rod (19) is fixedly connected with the amplification plug body (18), and the other end is connected with the piston rod (13); The movable plug body (15) and the amplification plug body (18) are provided with incompressible fluid therebetween.

4. The hydraulic displacement amplification damper according to claim 3, wherein The movable plug body (15), the inner movable rod (17) and the outer movable rod (16) are integrally formed, and the enlarged plug body (18), the enlarged rod (19) and the piston rod (13) are integrally formed.

5. The hydraulic displacement amplification damper according to claim 4, wherein The viscous shell (11) is provided with a first cavity (22), and one end of the movable plug body (15) away from the inner movable rod (17) is located in the first cavity (22); the viscous shell (11) is provided with a second cavity (23), and one end of the enlarged plug body (18) away from the movable plug body (15) is located in the second cavity (23); the first cavity (22) and the second cavity (23) are filled with incompressible fluid. The outer movable rod (16), the movable plug body (15) and the inner movable rod (17) are provided with a first flow channel (25) communicating the first cavity (22) and the deep hole (24), and the enlarged rod (19) is provided with a second flow channel communicating the second cavity (23) and the deep hole (24); the first cavity (22) and the second cavity (23) are communicated through the first flow channel (25), the deep hole (24) and the second flow channel.

6. The hydraulic displacement amplification damper of claim 2, wherein, Two arc-shaped grooves (1101) are formed on the outer wall of the viscous shell (11), and arc-shaped tiles (27) are arranged in the two arc-shaped grooves (1101); the arc-shaped grooves (1101) and the arc-shaped tiles (27) are filled with heat-conducting silica gel; the outer wall of the arc-shaped tile (27) is fixedly connected with a plurality of heat dissipation fins (28); and a plurality of sets of abutting mechanisms for fixing the arc-shaped tile (27) are arranged on the outer wall of the viscous shell (11).

7. The hydraulic displacement amplification damper according to claim 6, wherein A plurality of strip-shaped grooves are formed on the inner wall of the arc-shaped tile (27).

8. The hydraulic displacement amplification damper of claim 6, wherein, Two positioning pin heads are fixedly installed in the arc-shaped grooves (1101), and two positioning holes are formed on the arc-shaped tile (27); the two positioning pin heads penetrate through the corresponding positioning holes and are in sliding connection with the inner walls of the corresponding positioning holes.

9. The hydraulic displacement amplification damper of claim 6, wherein, The abutting mechanism comprises a fixed shaft (29), a rotating arm (30), a screw rod (31) and a pressing head (32); the fixed shaft (29) is fixedly installed on the outer wall of the viscous shell (11); the rotating arm (30) is rotatably sleeved on the fixed shaft (29); the screw rod (31) penetrates through and is threadedly installed on the rotating arm (30); the pressing head (32) is rotatably installed on one end of the screw rod (31) close to the viscous shell (11); and the pressing head (32) is in contact with the arc-shaped tile (27).

Images