Shock insulation layer multi-direction multifunctional parallel-connection type metal damper

Abstract

The invention discloses a shock insulation layer multi-directional multifunctional parallel metal damper, and relates to the technical field of dampers, the shock insulation layer multi-directional multifunctional parallel metal damper comprises a base, a rotating disc is rotatably mounted on the base, a pressing disc is arranged above the rotating disc, and a connecting disc is mounted on the upper surface of the pressing disc; through an innovative three-dimensional space multi-layer U-shaped nested matrix structure, a self-adaptive sliding rail fastener system and a modular multi-direction parallel assembly system, structural design, material selection and a manufacturing process are optimized, and efficient energy consumption, wind resistance, tension resistance, limiting and self-resetting of the damper under the action of complex loads are achieved. And meanwhile, an intelligent reset mechanism is introduced, the damper is promoted to reset under the working conditions of large deformation and large residual deformation, the follow-up use function is ensured, maintenance is avoided, then safety and reliability are improved, and the installation and maintenance cost is reduced. According to the multi-stage deformation concept, the effects of multi-stage energy consumption, multi-stage wind resistance and multi-stage limiting can be achieved, and the requirements for earthquake and vibration control can be met at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of dampers, in particular to a multi-directional and multi-functional parallel metal damper for a seismic isolation layer. Background Art

[0002] With the acceleration of urbanization, rail transit, as an important part of urban public transportation, has a significant impact on surrounding engineering structures and residents' lives due to the vibrations it generates during operation. At the same time, earthquakes, as natural disasters, pose an increasingly serious threat to the safety of engineering structures. Therefore, how to effectively control the vibrations generated by rail transit operation while ensuring the safety of engineering structures under earthquakes has become a hot topic of current research. As an effective means of shock absorption, seismic isolation technology has been widely used in engineering structures. However, most of the existing dampers for seismic isolation layers have a single function and it is difficult to simultaneously meet the requirements of efficient energy consumption, good wind resistance, tensile strength, limiting and self-resetting performance. Due to their single structure, traditional dampers for seismic isolation layers cannot meet the dual control requirements of multi-directional loads and vibration in the seismic isolation layer.

[0003] Among the existing similar solutions, the traditional seismic isolation layer uses viscous dampers: although they have strong one-way energy dissipation capabilities, they perform poorly in terms of limiting and tensile resistance; and some wind-resistant and limiting devices may affect the energy dissipation efficiency of the damper. U-shaped dampers: The single-blade structure cannot achieve graded deformation and energy dissipation, and its wind-resistant, tensile, and limiting capabilities are limited. External wind-resistant, tensile, and limiting devices: As independent auxiliary structures, the limitations of the manufacturing process lead to complex assembly (requiring secondary calibration and positioning), and it is difficult to control the installation accuracy during the construction phase. There is no vertical self-reset mechanism during normal working phases or after earthquakes, making it difficult to meet design requirements.

[0004] Although existing dampers can achieve a combination of energy dissipation and position limiting through a specific structure, the tensile and reset performance of existing dampers still needs to be improved, and their structure is complex and difficult to manufacture. At the same time, when dealing with rail transit vibration, similar solutions often have problems such as insufficient energy dissipation capacity, poor wind resistance, and difficulty in balancing tensile and position limiting performance.

[0005] Therefore, a multi-directional and multi-functional parallel metal damper for seismic isolation layer is proposed to solve the above problems. Summary of the Invention

[0006] In view of this, the technical problem to be solved by the present invention is to propose a multi-directional and multi-functional parallel metal damper for seismic isolation layer, which optimizes the structural design, material selection and manufacturing process through an innovative three-dimensional multi-layer U-shaped nested matrix structure, an adaptive slide rail fastener system and a modular multi-directional parallel assembly system, so as to achieve efficient energy consumption, wind resistance, tension resistance, position limiting and self-resetting of the damper under complex loads. At the same time, an intelligent reset mechanism is introduced to reset the damper under conditions of large deformation and large residual deformation, ensuring subsequent use functions and maintenance-free operation, thereby improving safety and reliability and reducing installation and maintenance costs. The multi-stage deformation concept proposed in the present invention can achieve multi-stage energy consumption, multi-stage wind resistance and multi-stage position limiting effects, and can adapt to earthquake and vibration control needs at the same time.

[0007] To achieve the above objectives, the present invention provides the following technical solutions: a multi-directional, multi-functional parallel metal damper for a seismic isolation layer, comprising a base, a turntable rotatably mounted on the base, a pressure plate disposed above the turntable, and a connecting plate mounted on the upper surface of the pressure plate, the multi-directional, multi-functional parallel metal damper for a seismic isolation layer further comprising a position-limiting, protective, and shock-absorbing structure and a multi-layer shock-absorbing and damping mechanism;

[0008] The position limiting protection and shock absorbing structure is arranged in the middle of the connecting plate, and the position limiting protection and shock absorbing structure is used for buffering, limiting and protecting the multi-layer shock absorbing and damping mechanism;

[0009] The multi-layer shock-absorbing and damping mechanism is arranged on the turntable, and the multi-layer shock-absorbing and damping mechanism is used for shock-absorbing and damping of the base to the pressure plate.

[0010] Preferably, the limiting protection shock-absorbing structure includes a support plate, a contact plate is rotatably mounted on the upper surface of the support plate, a piston shaft is fixedly mounted in the middle of the lower surface of the support plate, and a hydraulic cylinder is slidably mounted on the outer surface of the piston shaft away from one end of the support plate.

[0011] Preferably, a buffer groove is opened in the middle of the turntable, and an annular rubber shock-absorbing plate is installed on the inner wall of the turntable buffer groove. The hydraulic cylinder is installed in the middle of the turntable buffer groove away from the piston shaft. A buffer spring is sleeved on the outer surface of the piston shaft, and one end of the buffer spring is fixedly installed on the lower surface of the support plate.

[0012] Preferably, the other end of the buffer spring is fixedly mounted on the upper surface of the hydraulic cylinder, a pressure plate is rotatably mounted on the lower surface of the support plate close to the outer side of the piston shaft, and a connecting plate is rotatably mounted on one end of the pressure plate away from the support plate.

[0013] Preferably, hydraulic oil is injected into the hydraulic cylinder, and diversion holes are evenly opened on the circumference of the outer surface of the bottom of the hydraulic cylinder, and the diversion holes are fixedly connected to the limit cylinder near the outside of the hydraulic cylinder. A limit piston is slidably installed on the inner wall of the limit cylinder, and a tension spring is sleeved on the outer surface of the limit cylinder. One end of the tension spring is fixedly installed on the outer surface of the hydraulic cylinder, and the other end of the tension spring is fixedly installed on the limit piston.

[0014] Preferably, the multi-layer shock-absorbing and damping mechanism includes an intermediate plate, which is symmetrically arranged on the lower surface of the connecting plate, the middle part of the upper surface of the connecting plate is slidably mounted on the lower surface of the pressure plate, and the lower surface of the connecting plate is fixedly mounted on the intermediate plate.

[0015] Preferably, a first U-shaped damper, a second U-shaped damper and connecting bolts are respectively provided under the middle plate, the first U-shaped damper is sleeved on the outside of the second U-shaped damper, the first U-shaped damper and the second U-shaped damper are fixedly mounted on the middle plate by connecting bolts, and a slide rail fastener is fixedly mounted on the side of the middle plate away from the connecting plate.

[0016] Preferably, a slide rail groove is opened on the circumference of the upper surface of the turntable, the slide rail fastener is slidably installed in the slide rail groove, a return spring is symmetrically fixedly installed on the inner wall of the slide rail groove, and the return spring is fixedly installed on the slide rail fastener at one end away from the inner wall of the slide rail groove.

[0017] Preferably, the material of the part of the slide rail fastener that contacts the slide rail groove along the slide rail direction is formed by shape memory alloy SMA with shape memory effect to form a limit block, and the material of the part of the slide rail fastener that contacts the slide rail groove along the vertical direction is formed by shape memory alloy SMA with shape memory effect to form a limit block.

[0018] As an optimal solution, the multi-layer shock-absorbing and damping mechanism supports multiple installation angles to meet the needs of different scenarios. Its installation method is not limited to the circular arrangement at the bottom of the pressure plate as shown in the attached figure, and can also be flexibly adapted to a square layout. For detailed force analysis at different installation angles, see Figure 7 shown.

[0019] Compared with the prior art, the multi-directional and multi-functional parallel metal damper for the seismic isolation layer provided by the present invention has the following beneficial effects:

[0020] 1. The overall structure and working principle of the metal damper proposed in the present invention include a U-shaped plate unit, including the number of layers and arrangement of the first U-shaped damper and connecting bolts, as well as the design of the connecting parts, the specific design of the tensile device, the limit device and the reset device, and their application in the damper.

[0021] 2. Design and application of shape memory alloy limit blocks in adaptive slide rail fastener systems, especially the impact of their deformation recovery ability on damper performance and the connection method between the limit blocks and the slide rails and sliders.

[0022] 3. The assembly method and performance advantages of the modular multi-directional parallel assembly system, including module division, connector selection, and assembly process, ensure the stable connection of the damper in different directions and improve the performance of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the decomposed state of the three-dimensional structure of the present invention;

[0025] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 A half-cut schematic diagram of the connection relationship of the position limiting protection and shock absorbing structure of the present invention;

[0027] Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle;

[0028] Figure 6 This is a schematic diagram of the structural connection relationship of the multi-layer shock-absorbing and damping mechanism of the present invention;

[0029] Figure 7 Schematic diagram of force analysis of the multi-layer shock-absorbing and damping mechanism of the present invention at different installation angles.

[0030] In the picture:

[0031] 1. Base; 11. Turntable; 12. Pressure plate; 13. Connecting plate;

[0032] 2. Position limiting protection and shock absorption structure; 21. Contact plate; 22. Support plate; 23. Piston shaft; 24. Buffer spring; 25. Hydraulic cylinder; 26. Position limiting cylinder; 27. Position limiting piston; 28. Tension spring; 29. Pressure plate;

[0033] 3. Multi-layer shock-absorbing and damping mechanism; 31. Connecting plate; 32. Intermediate plate; 33. First U-shaped damper; 34. Second U-shaped damper; 35. Connecting bolt; 36. Slide rail fastener; 37. Slide rail groove; 38. Return spring. DETAILED DESCRIPTION

[0034] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] The present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0036] For example, please refer to Figures 1 to 7 As shown:

[0037] To solve the problems mentioned in the technical solution, the embodiment of the present application provides a multi-directional, multi-functional parallel metal damper for a seismic isolation layer, comprising a base 1, a turntable 11 being rotatably mounted on the base 1, a pressure plate 12 being provided above the turntable 11, and a connecting plate 13 being mounted on the upper surface of the pressure plate 12. The multi-directional, multi-functional parallel metal damper for a seismic isolation layer also includes a position-limiting, protective, and shock-absorbing structure 2 and a multi-layer shock-absorbing and damping mechanism 3;

[0038] The position limiting protection and shock absorbing structure 2 is arranged in the middle of the connecting plate 13, and is used for buffering, limiting and protecting the multi-layer shock absorbing and damping mechanism 3;

[0039] The multi-layer shock absorbing and damping mechanism 3 is provided on the turntable 11 and is used for shock absorbing and damping the base 1 to the pressure plate 12;

[0040] Among them, such as Figure 5 As shown, a contact plate 21 is rotatably mounted on the upper surface of the support plate 22, a piston shaft 23 is fixedly mounted in the middle of the lower surface of the support plate 22, and a hydraulic cylinder 25 is slidably mounted on the outer surface of the piston shaft 23 away from the support plate 22;

[0041] When the hydraulic cylinder 25 is initially loaded, the buffer spring 24 provides a buffering effect to reduce shock. At the same time, the hydraulic oil in the hydraulic cylinder 25 provides a secondary buffering effect to provide preliminary shock absorption protection for the load on the contact plate 21 .

[0042] Furthermore, a buffer groove is provided in the middle of the turntable 11, and an annular rubber shock-absorbing plate is installed on the inner wall of the buffer groove of the turntable 11. The hydraulic cylinder 25 is installed in the middle of the buffer groove of the turntable 11 away from one end of the piston shaft 23. A buffer spring 24 is sleeved on the outer surface of the piston shaft 23, and one end of the buffer spring 24 is fixedly installed on the lower surface of the support plate 22; the other end of the buffer spring 24 is fixedly installed on the upper surface of the hydraulic cylinder 25, and a pressure plate 29 is rotatably installed on the lower surface of the support plate 22 near the outer side of the piston shaft 23, and a connecting plate 31 is rotatably installed on the pressure plate 29 away from one end of the support plate 22; hydraulic oil is injected into the hydraulic cylinder 25, and diversion holes are evenly opened on the circumference of the outer surface of the bottom of the hydraulic cylinder 25, and the diversion holes are fixedly connected to the limit cylinder 26 near the outer side of the hydraulic cylinder 25. A limit piston 27 is slidably installed on the inner wall of the limit cylinder 26, and a tension spring 28 is sleeved on the outer surface of the limit cylinder 26. One end of the tension spring 28 is fixedly installed on the outer surface of the hydraulic cylinder 25, and the other end of the tension spring 28 is fixedly installed on the limit piston 27;

[0043] Among them, the action of the hydraulic oil inside the hydraulic cylinder 25 will cause the limit piston 27 to slide in the limit cylinder 26, and by converting the vertical load of the contact plate 21 into the horizontal movement of the limit piston 27, when the overall load of the multi-layer shock-absorbing and damping mechanism 3 reaches the load limit, the extrusion of the hydraulic oil inside the hydraulic cylinder 25 will drive the limit piston 27 to collide with the annular rubber shock-absorbing plate in the limit groove of the turntable 11, which can not only increase the limiting protection of the multi-layer shock-absorbing and damping mechanism 3, but also achieve a buffering effect on the initial attachment through the limiting protection shock-absorbing structure 2, reducing the impact damage of the debt directly acting on the multi-layer shock-absorbing and damping mechanism 3 to the structure of the multi-layer shock-absorbing and damping mechanism 3, thereby increasing the use stability of the structure of the multi-layer shock-absorbing and damping mechanism 3 and increasing the overall service life of the multi-layer shock-absorbing and damping mechanism 3.

[0044] Specifically, such as Figure 3 and Figure 6 As shown, the intermediate plate 32 is symmetrically arranged on the lower surface of the connecting plate 31, the middle part of the upper surface of the connecting plate 31 is slidably mounted on the lower surface of the pressure plate 12, and the lower surface of the connecting plate 31 is fixedly mounted on the intermediate plate 32; a first U-shaped damper 33, a second U-shaped damper 34 and a connecting bolt 35 are respectively provided below the intermediate plate 32, the first U-shaped damper 33 is sleeved on the outside of the second U-shaped damper 34, and the first U-shaped damper 33 and the second U-shaped damper 34 are fixedly mounted on the intermediate plate 32 by the connecting bolt 35. Figure 6 As shown, the first U-shaped damper 33 and the second U-shaped damper 34 are arranged in parallel, and the first U-shaped damper 33 and the second U-shaped damper 34 are fixed by connecting bolts 35 to achieve the second U-shaped damper 34 nested inside the first U-shaped damper 33, and Figure 6 This is only a simulation of a single scenario in this solution;

[0045] The multi-layer shock-absorbing and damping mechanism 3 in this solution supports multiple installation angle solutions to meet the needs of different scenarios. Its installation method is not limited to the circular arrangement at the bottom of the pressure plate 12 as shown in the figure, and can also be flexibly adapted to a square layout. For detailed force analysis under different installation angles, see Figure 7 shown.

[0046] The relative spatial relationship between the first U-shaped dampers 33 and the second U-shaped dampers 34 can be designed to be parallel, cross-shaped, or at any angle to each other, depending on the actual project, ensuring multi-directional functionality. The number and size of the first U-shaped dampers 33 and the second U-shaped dampers 34 in each layer can be adjusted to meet project requirements. For example, if the project structure has a high output in the X direction, the number and size of the first U-shaped dampers 33 in the X direction can be appropriately increased, making them wider and thicker, while the number and size of the second U-shaped dampers 34 in the Y direction can be appropriately reduced, making them shorter and thinner.

[0047] A slide rail fastener 36 is fixedly mounted on the side of the intermediate plate 32 away from the connecting plate 31; a slide rail groove 37 is formed on the circumference of the upper surface of the turntable 11, and the slide rail fastener 36 is slidably mounted in the slide rail groove 37. A return spring 38 is symmetrically fixedly mounted on the inner wall of the slide rail groove 37, and the end of the return spring 38 away from the inner wall of the slide rail groove 37 is fixedly mounted on the slide rail fastener 36;

[0048] Among them, the slide rail fastener 36 slides in the slide rail groove 37, and is cross-connected with the independent first U-shaped damper 33 and the second U-shaped damper 34. There is a gap between the slide rail fastener 36 and the slide rail groove 37 to ensure normal horizontal operation. When vertical lifting occurs, the horizontal gap gradually disappears. In this process, the internal force of the seismic isolation layer is redistributed, thereby playing a tensile role. The slide rail groove 37 and the main part of the slide rail groove 37 are made of high-strength alloy, which has the advantages of light weight, corrosion resistance, and fatigue resistance. This material selection not only ensures the strength and stability of the fastener, but also improves its service life and reliability. The lightweight characteristics of the high-strength alloy ensure that the fastener will not add too much weight burden to the damper; and the good corrosion resistance and fatigue resistance ensure that the fastener can maintain stable performance during long-term use.

[0049] The material of the part of the slide rail fastener 36 that contacts the slide rail groove 37 along the slide rail direction is formed by a shape memory alloy SMA with a shape memory effect to form a limit block, and the material of the part of the slide rail fastener 36 that contacts the slide rail groove 37 along the vertical direction is formed by a shape memory alloy SMA with a shape memory effect to form a limit block.

[0050] In this solution, the rail fasteners 36 and rail grooves 37 play a key role in the tensile function, and the shape memory alloy limit block SMA provided at the end of the rail groove 37 plays a key role in the limiting and adaptive reset functions. The limit block is in a martensite state at normal temperature and has a certain strength and rigidity; when the temperature reaches the phase transition temperature or is deformed by an external force, the limit block undergoes a phase transition and transforms into an austenite state, absorbing energy and limiting the further sliding of the slider. After the external force dissipates, the shape memory alloy limit block SMA naturally expands due to its "memory" function and adapts to the original design shape. Specifically, when an earthquake occurs, the fastener undergoes multi-directional deformation and tensile resistance through the rail. Under the action of strong winds or earthquakes, when the deformation of the damper reaches a certain level, the shape memory alloy limit block begins to phase change, absorbing part of the energy and limiting the further deformation of the damper, protecting the structure from damage under certain unexpected effects. After the external force dissipates, the shape memory alloy (SMA) limiter, due to its "memory" function, causes the rail groove 37 to adapt to its normal design shape, achieving intelligent reset. This reset function eliminates the need for frequent damper replacement under extreme conditions, indirectly extending its service life and reducing maintenance costs.

[0051] The specific implementation process is as follows:

[0052] When an earthquake or wind load acts, the first U-shaped damper 33 and the second U-shaped damper 34 undergo plastic deformation under the action of shear force, absorbing and dissipating energy. The multi-layer nesting and multi-directional arrangement design enables the damper to have good energy dissipation, wind resistance, and position limiting performance in different directions, while enhancing the overall stability of the structure. By optimizing the number of layers, arrangement, and connector design of the first U-shaped damper 33 and the second U-shaped damper 34, the energy dissipation, wind resistance, position limiting efficiency, and stability of the damper can be further improved. For example, under the action of an earthquake, the outer first U-shaped damper 33 deforms first, consuming part of the energy while providing a certain wind resistance; then, the inner second U-shaped damper 34 deforms in turn until, as shown in FIG. Figure 5 As shown, when contact plate 21 and multi-layer shock-absorbing and damping mechanism 3 slide downward synchronously until contact plate 21 moves downward, the pressure of the hydraulic oil in hydraulic cylinder 25 pushes limit piston 27, causing limit piston 27 to contact the annular rubber damping plate in the limit groove of turntable 11. At this time, the multi-layer shock-absorbing and damping mechanism 3 is loaded to its maximum value. At the same time, the limit protection and shock-absorbing structure 2 provides a limit function, creating a step-by-step energy dissipation, wind resistance, and limit effect. Similarly, when rail transit vibrates, the first U-shaped damper 33 and the second U-shaped damper 34 undergo plastic deformation under the action of vertical force, absorbing and dissipating energy.

[0053] This invention utilizes an innovative three-dimensional, multi-layered shock-absorbing damping mechanism (3 structures), an adaptive rail fastener system (36 systems), and a modular, multi-directional parallel assembly system to achieve efficient energy dissipation, wind resistance, tensile strength, position limiting, and reset performance under complex loads. In particular, the introduction of intelligent materials such as shape memory alloy limiters enables intelligent response and adaptive adjustment under extreme loads, improving the damper's safety and reliability.

[0054] 1. Excellent comprehensive performance:

[0055] The metal damper proposed in the present invention can simultaneously meet the requirements of earthquake and rail transit vibration control, and has high energy efficiency, good wind resistance, tensile strength, and reliable limiting and resetting capabilities.

[0056] 2. Strong adaptability:

[0057] By adjusting the materials, number of structural layers, and orientation and assembly direction of the U-shaped unit components, including the first U-shaped damper 33 and the second U-shaped damper 34, the damper can be adapted to the requirements of different earthquake intensities and rail transit vibration characteristics. For example, in areas with high earthquake intensity, higher strength and higher ductility metal materials, more U-shaped unit components, and more assembly groups can be used to improve the damper's energy dissipation, wind resistance, tensile strength, and limiting and reset capabilities. In areas with frequent rail transit vibration, more optimized structural parameters can be used to improve the damper's energy dissipation efficiency.

[0058] 3. Easy installation and maintenance:

[0059] The damper adopts a modular design, which is easy to produce, transport, install and maintain, reducing the cost of use. At the same time, each component of the damper can be disassembled and replaced, which facilitates future maintenance and upgrades.

[0060] Please refer to the above working process Figures 1 to 7 .

[0061] In summary: The present invention achieves efficient energy consumption, good wind resistance, tensile strength, and reliable limiting and resetting performance of the damper under complex loads through an innovative three-dimensional multi-layer U-shaped nested matrix structure, an adaptive slide rail fastener 36 system, and a modular multi-directional parallel assembly system. At the same time, by selecting high-performance materials and optimizing the manufacturing process, the bottleneck of material performance and the limitations of the manufacturing process have been broken through, and the comprehensive performance of the damper has been improved. The innovation and practicality of the present invention are significant, and it has broad application prospects. In the future, we will further optimize the design, improve the performance and service life of the damper, and provide more reliable technical support for seismic isolation and shock absorption of engineering structures.

[0062] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0063] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multi-directional and multi-functional parallel metal damper for a seismic isolation layer, characterized in that: The invention comprises a base (1), a turntable (11) is rotatably mounted on the base (1), a pressure plate (12) is arranged above the turntable (11), and a connecting plate (13) is mounted on the upper surface of the pressure plate (12); the multi-directional and multi-functional parallel metal damper with a seismic isolation layer also comprises a position-limiting protection shock-absorbing structure (2) and a multi-layer shock-absorbing and damping mechanism (3); The position limiting protection and shock absorbing structure (2) is arranged in the middle of the connecting plate (13), and the position limiting protection and shock absorbing structure (2) is used for buffering, limiting and protecting the multi-layer shock absorbing and damping mechanism (3); The multi-layer shock absorbing and damping mechanism (3) is arranged on the rotating disk (11), and the multi-layer shock absorbing and damping mechanism (3) is used for the base (1) to provide shock absorption and damping for the pressure plate (12).

2. The multi-directional and multi-functional parallel metal damper for seismic isolation layer according to claim 1, characterized in that: The position limiting protection and shock absorbing structure (2) comprises a support plate (22), a contact plate (21) is rotatably mounted on the upper surface of the support plate (22), a piston shaft (23) is fixedly mounted in the middle of the lower surface of the support plate (22), and a hydraulic cylinder (25) is slidably mounted on the outer surface of one end of the piston shaft (23) away from the support plate (22).

3. The multi-directional and multi-functional parallel metal damper for seismic isolation layer according to claim 2, characterized in that: A buffer groove is provided in the middle of the turntable (11), and an annular rubber damping plate is installed on the inner wall of the buffer groove of the turntable (11). The hydraulic cylinder (25) is installed in the middle of the buffer groove of the turntable (11) at one end away from the piston shaft (23). A buffer spring (24) is sleeved on the outer surface of the piston shaft (23), and one end of the buffer spring (24) is fixedly installed on the lower surface of the support plate (22).

4. The multi-directional and multi-functional parallel metal damper for seismic isolation layer according to claim 3, characterized in that: The other end of the buffer spring (24) is fixedly mounted on the upper surface of the hydraulic cylinder (25); a pressure plate (29) is rotatably mounted on the lower surface of the support plate (22) near the outer side of the piston shaft (23); and a connecting plate (31) is rotatably mounted on one end of the pressure plate (29) away from the support plate (22).

5. The multi-directional and multi-functional parallel metal damper for seismic isolation layer according to claim 4, characterized in that: Hydraulic oil is injected into the hydraulic cylinder (25), and diversion holes are evenly opened on the circumference of the outer surface of the bottom of the hydraulic cylinder (25), and the diversion holes are fixedly connected to the limit cylinder (26) near the outer side of the hydraulic cylinder (25), and a limit piston (27) is slidably installed on the inner wall of the limit cylinder (26). A tension spring (28) is sleeved on the outer surface of the limit cylinder (26), and one end of the tension spring (28) is fixedly installed on the outer surface of the hydraulic cylinder (25), and the other end of the tension spring (28) is fixedly installed on the limit piston (27).

6. The multi-directional and multi-functional parallel metal damper for seismic isolation layer according to claim 4, characterized in that: The multi-layer shock absorbing and damping mechanism (3) comprises an intermediate plate (32), the intermediate plate (32) being symmetrically arranged on the lower surface of the connecting plate (31), the middle portion of the upper surface of the connecting plate (31) being slidably mounted on the lower surface of the pressure plate (12), and the lower surface of the connecting plate (31) being fixedly mounted on the intermediate plate (32).

7. The multi-directional and multi-functional parallel metal damper for seismic isolation layer according to claim 6, characterized in that: A first U-shaped damper (33), a second U-shaped damper (34) and a connecting bolt (35) are respectively provided below the intermediate plate (32); the first U-shaped damper (33) is sleeved on the outside of the second U-shaped damper (34); the first U-shaped damper (33) and the second U-shaped damper (34) are fixedly mounted on the intermediate plate (32) via the connecting bolt (35); a slide rail fastener (36) is fixedly mounted on the side of the intermediate plate (32) away from the connecting plate (31).

8. The multi-directional and multi-functional parallel metal damper for seismic isolation layer according to claim 7, characterized in that: A slide rail groove (37) is provided on the circumference of the upper surface of the turntable (11), and the slide rail fastener (36) is slidably installed in the slide rail groove (37). A return spring (38) is symmetrically fixedly installed on the inner wall of the slide rail groove (37), and one end of the return spring (38) away from the inner wall of the slide rail groove (37) is fixedly installed on the slide rail fastener (36).

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