Self-resetting damper device

Abstract

The utility model relates to the technical field of energy dissipation and shock absorption of building structures, and discloses a self-resetting damper device which comprises a sleeve, a guide rod, a ring body structure, a first spring, a second spring and viscous liquid. When the damper is subjected to external acting force, the viscous liquid is extruded by the guide rod to enter a cavity on one side of the end part of the guide rod for energy consumption; the ring body structure and the first spring deform after being extruded by the guide rod and form elastic internal energy; and the second spring deforms after being extruded by the sleeve and forms elastic internal energy. Elastic internal energy stored in the first spring, the second spring and the ring body structure is recovery energy for structure reset. After an earthquake, the first spring, the second spring and the ring body structure in the self-resetting damper device are deformed and recovered, the guide rod is reset, the structure of the self-resetting damper device is intact, and replacement of structural elements is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of energy dissipation and shock absorption of building structures, in particular to a self-resetting damper device. Background Art

[0002] Dampers are widely used in the fields of construction, bridges, machinery, etc. For example, in the field of construction, dampers are used to prevent the main structure from undergoing significant inelastic deformation under earthquakes, quickly reduce earthquake displacement, and protect the safety of the structure. Applying dampers between steel beam-column nodes or concrete beam-column nodes can protect the beam-column nodes and prevent the beams and columns from having large relative rotation angles. Currently, the most common dampers are viscous dampers and metal dampers, both of which have simple structures, relatively high applicability, and good reliability. However, the self-reset ability of the above-mentioned damper structures is not strong, and the dampers are easily damaged under large earthquakes, and the economic efficiency is poor. In traditional viscous dampers, the performance of viscous materials directly affects the thermal stability, energy consumption performance, frequency dependence and other indicators of the damper, so the material selection requirements are high, the economic efficiency is poor, and the manufacturing cost is increased to a certain extent. The yield strength of traditional metal dampers is relatively high, and it is not easy to produce hysteresis energy consumption under medium and small earthquakes. The adjustable performance of yield strength is poor, and it cannot fully meet the shock absorption design requirements of different functional structures. In addition, metal dampers also increase the stiffness of the structure itself, resulting in an increase in the overall structural rigidity. This method reduces the deformation effect of the structure, amplifies the impact of the earthquake on the structure, and makes the seismic effect of the structure not obvious. In addition, if a large earthquake occurs, the metal damper will be damaged, and the problem of component replacement will occur after the earthquake, so the economic performance is poor. Utility Model Content

[0003] The embodiment of the utility model aims to provide a self-resetting damper device to solve the technical problem in the prior art that the damper cannot be self-reset and faces the need for component replacement after an earthquake.

[0004] The utility model embodiment solves its technical problems by adopting the following technical solutions:

[0005] A self-resetting damper device is provided, comprising:

[0006] A sleeve, one end of which is provided with an annular ear plate, the annular ear plate is used to connect with the building structure, and a viscous liquid is provided inside the sleeve;

[0007] A guide rod, the guide rod is inserted into the sleeve along the axial direction of the sleeve and is located inside the sleeve, and a chamber is provided at the end of the guide rod;

[0008] A ring structure, the ring structure is located in the sleeve and sleeved on the guide rod;

[0009] a first spring, the first spring being located in the sleeve and abutting against the ring structure;

[0010] a second spring, the second spring being sleeved on the guide rod and abutting against the other end of the sleeve;

[0011] Wherein, the ring structure and the first spring can be compressed and form elastic internal energy after being squeezed by the guide rod, so as to perform subsequent structural reset;

[0012] The second spring can be compressed and form elastic internal energy after being squeezed by the sleeve, so as to facilitate subsequent structural restoration;

[0013] The viscous liquid inside the sleeve is squeezed by the guide rod and enters the chamber at the end of the guide rod to consume energy.

[0014] In some embodiments, the ring structure includes a first steel ring, a second steel ring and an SMA ring;

[0015] The first steel ring body and the second steel ring body overlap with the SMA ring body, and the first steel ring body and the second steel ring body can move following the guide rod.

[0016] In some embodiments, the guide rod includes a rod portion and a connecting end, wherein the connecting end is located at one end of the rod portion, the connecting end is used to connect to a building structure, and the rod portion is inserted through the sleeve along the axial direction of the sleeve and is located inside the sleeve.

[0017] In some embodiments, the second spring is sleeved on the rod portion, and one end of the second spring abuts against the outside of the sleeve, and the other end abuts against the connecting portion.

[0018] In some embodiments, the chamber is located at the other end of the guide rod, the chamber is located between the first spring and the ring structure, and an air hole is opened in the chamber, and the air hole is used to circulate viscous liquid.

[0019] In some embodiments, a viscous liquid is further disposed in the sleeve, and the viscous liquid flows between the sleeve and the chamber;

[0020] When the rod moves, the viscous liquid can enter the chamber through the air hole.

[0021] In some embodiments, the annular ear plate includes a pin shaft, the pin shaft can be connected to the building structure, and the annular ear plate can rotate around the pin shaft.

[0022] In some embodiments, the connecting end of the guide rod is arranged in an I-shape.

[0023] In some embodiments, a plurality of the first steel ring body, the second steel ring body and the SMA ring body are provided, and the plurality of the first steel ring bodies, the second steel ring bodies and the SMA ring bodies are overlapped with each other.

[0024] Compared with the prior art, in the self-resetting damper device provided by the embodiment of the utility model, the guide rod is arranged in the sleeve along the axial direction of the sleeve and is located in the sleeve, a ring structure is arranged on the guide rod, and a second spring is arranged between the sleeve and the guide rod exposed outside the sleeve, and a first spring is arranged on the guide rod inside the sleeve. During an earthquake, the building structure drives the damper guide rod to move, the viscous liquid in the sleeve is squeezed by the guide rod into the end chamber of the guide rod for energy consumption, the guide rod squeezes the first spring to make the first spring stressed, and the second spring is squeezed by the guide rod and the sleeve and stressed, and this process can convert part of the seismic energy into the elastic internal energy of the spring as the restoring energy for the self-resetting of the subsequent structure; as the seismic response further increases, the guide rod drives the ring structure to be squeezed, and the ring structure expands at this time, and this process converts the seismic energy into the elastic internal energy of the ring structure, which is also used as the restoring energy for the self-resetting of the subsequent structure; when the seismic force decreases, the first spring and the second spring push the guide rod to move, and at this time, the ring structure located inside the sleeve is deformed and restored, and the ring structure pushes the guide rod to move. So that the guide rod can achieve self-reset. Through such an arrangement, the elastic internal energy stored in the first spring, the second spring and the ring structure is converted into the recovery energy for structural reset. Therefore, after an earthquake, the first spring, the second spring and the ring structure in the self-reset damper device are deformed and restored, the guide rod is reset, and the structure of the self-reset damper device is intact, without the need to replace the original structural components. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] One or more embodiments are exemplarily described by the figures in the corresponding drawings, and these exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0026] Figure 1 It is an overall plan view of the self-resetting damper device provided by the utility model;

[0027] Figure 2 It is a plan view of a guide rod of the self-resetting damper device provided by the utility model;

[0028] Figure 3 It is a side view schematic diagram of the first rigid ring body of the self-resetting damper device provided by the utility model;

[0029] Figure 4 It is a plan view of the second rigid ring body of the self-resetting damper device provided by the utility model;

[0030] Figure 5 It is a side view of the second rigid ring body of the self-resetting damper device provided by the utility model;

[0031] Figure 6 It is a plan view of the second rigid ring body of the self-resetting damper device provided by the utility model;

[0032] Figure 7 It is a plan view of the SMA ring body of the self-resetting damper device provided by the utility model;

[0033] Figure 8 It is a side view of the SMA ring body of the self-resetting damper device provided by the utility model;

[0034] Fig. 9 It is a plan view of the first spring of the self-resetting damper device provided by the utility model;

[0035] Fig.10 It is a plan view of the second spring of the self-resetting damper device provided by the utility model;

[0036] Fig.11 It is a side view and a plan view of a chamber of the self-resetting damper device provided by the utility model;

[0037] Fig.12 It is a plan view of a chamber of the self-resetting damper device provided by the utility model.

[0038] Markings in the figure:

[0039] 100. Self-resetting damper device; 10. Sleeve; 11. Annular ear plate; 12. Viscous liquid; 20. Guide rod; 21. Rod portion; 22. Connecting end; 23. Chamber; 231. Air hole; 30. Ring body structure; 31. First rigid ring body; 32. Second rigid ring body; 33. SMA ring body; 40. First spring; 50. Second spring. DETAILED DESCRIPTION

[0040] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connecting" another element, it can be directly on another element, or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "upper end", "lower end", "top" and "bottom" used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0041] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0042] Combine the following Figures 1 to 12 , the self-resetting damper device 100 provided in the embodiment of the present application is described in detail through a specific embodiment.

[0043] The self-resetting damper device 100 provided in one embodiment of the utility model comprises a sleeve 10, a guide rod 20, a ring structure 30, a first spring 40 and a second spring 50. An annular ear plate 11 is provided at one end of the sleeve 10, and the annular ear plate 11 is used to connect with the building structure. A viscous liquid 12 is provided inside the sleeve 10; the guide rod 20 is provided in the sleeve 10 along the axial direction of the sleeve 10 and is located in the sleeve 10, and a chamber 23 is provided at the end of the guide rod 20; the ring structure 30 is located in the sleeve 10 and is sleeved on the guide rod 20; the first spring 40 is located in the sleeve 10 and is in contact with the chamber 23; the second spring 50 is sleeved on the guide rod 20 and is located in the sleeve 10. 0 and the guide rod connecting end 22; wherein, the ring structure 30 and the first spring 40 can be compressed and form elastic internal energy after being squeezed by the guide rod 20, so as to facilitate subsequent structural reset; the second spring 50 can be compressed and form elastic internal energy after being squeezed by the search sleeve 10, so as to facilitate subsequent structural reset; the viscous liquid 12 inside the sleeve 10 enters the chamber 23 at the end of the guide rod 20 for energy consumption after being squeezed by the guide rod 20.

[0044] In this embodiment, the self-resetting damper device 100 can be applied to structures such as buildings, bridges, and subway systems, and can reduce the vibration effects of external forces such as earthquakes or wind on the structures.

[0045] Among them, the sleeve 10 is usually a cylindrical shell. The sleeve 10 is usually made of metal material (such as high-strength steel or high-strength alloy), so that the sleeve 10 has a certain strength and rigidity. The sleeve 10 is responsible for protecting the moving parts and seals inside the self-resetting damper device 100 (for example, protecting the guide rod 20, the ring structure 30, the second spring 50 and the first spring 40), and also provides a certain support and fixing effect. When assembling the self-resetting damper device 100, the sleeve 10 plays the role of connecting and fixing the various components to ensure that the self-resetting damper device 100 can work normally.

[0046] In addition, an annular ear plate 11 is provided at the end of the sleeve 10, which can usually be installed on the end of the sleeve 10 by welding, bolts or other means. The annular ear plate 11 provides a stable support platform for installing and fixing the sleeve 10 on other devices or structures (such as a bridge). It can be used to firmly fix the sleeve 10 at a desired position by bolts, welding or other connection methods. The annular ear plate 11 can help evenly distribute the load of the sleeve 10 to the connection point or supporting structure, thereby reducing the impact of concentrated loads on the connection point or supporting structure. The presence of the annular ear plate 11 can increase the overall rigidity and stability of the sleeve 10, and has a certain resistance to deformation or displacement when subjected to external forces, vibrations or impacts.

[0047] The guide rod 20 passes through the sleeve 10 along the axial direction of the sleeve 10 and is located inside the sleeve 10. A ring structure 30 is provided on the guide rod 20, and a second spring 50 is provided between the sleeve 10 and the guide rod 20 exposed outside the sleeve 10. A first spring 40 is provided at one end of the guide rod 20 inside the sleeve 10. During an earthquake, relative displacement occurs between the building structure rods. The viscous liquid 12 is squeezed by the chamber 23 at one end of the guide rod and enters the chamber 23 to consume energy. The guide rod 20 squeezes the first spring 40 to make the first spring 40 stressed. The second spring 50 is squeezed by the guide rod 20 and the sleeve 10 and is stressed. This process can convert part of the seismic energy into the elastic internal energy of the springs 40 and 50, which is used as the recovery energy for the subsequent structure to reset itself. As the seismic response further increases, the guide rod 20 drives the ring structure 30 to move. At this time, the ring structure 30 is squeezed and expands and deforms. This process converts the seismic energy into the elastic internal energy of the ring structure 30, which is also used as the recovery energy for the subsequent structure to reset itself. When the seismic force decreases, the first spring 40 and the second spring 50 push the guide rod 20 to move. At this time, the ring structure 30 located inside the sleeve 10 is deformed and restored, and the ring structure 30 pushes the guide rod 20 to move. The guide rod 20 pushes the external building structure to reset itself. Through such an arrangement, the elastic internal energy stored in the first spring 40, the second spring 50 and the ring structure 30 is converted into the recovery energy for structural reset. Therefore, after an earthquake, the first spring 40, the second spring 50 and the ring structure 30 in the self-resetting damper device 100 are deformed and restored, the guide rod 20 is reset, and the structure of the self-resetting damper device 100 is intact, and there is no need to replace the original structural components.

[0048] In some embodiments, the ring structure 30 includes a first steel ring 31 , a second steel ring 32 and an SMA ring 33 ; the first steel ring 31 and the second steel ring 32 are overlapped with the SMA ring 33 , and the first steel ring 31 and the second steel ring 32 can move following the guide rod 20 .

[0049] The SMA ring body 33 is an annular member made of a shape memory alloy (SMA for short). The SMA ring body 33 is a special metal alloy that has a memory effect and can change shape when subjected to external forces or temperature changes. When the SMA ring body 33 is compressed by an external force, it will remain in a compressed state, and when the tension disappears, the SMA ring body 33 can return to its original state.

[0050] In this embodiment, when an earthquake occurs, the guide rod 20 can drive the first rigid ring body 31 and the second rigid ring body 32 to move. At this time, the gap between the second rigid ring body 32 and the gap between the first rigid ring body 31 also become smaller, and the second rigid ring body 32 moves to squeeze the SMA ring body 33, and the SMA ring body 33 expands accordingly. This process converts the seismic energy into the elastic internal energy of the SMA ring body 33, which also serves as the recovery energy for the subsequent structure to self-reset.

[0051] When the earthquake force decreases, the first spring 40 and the second spring 50 push the guide rod 20 to move. At this time, the SMA ring body 33 inside the sleeve 10 is deformed and restored to drive the first rigid ring body and the second rigid ring body 32 to move, and the second rigid ring body 32 pushes the guide rod 20 to move. The guide rod 20 pushes the structure to reset itself. The elastic internal energy stored in the first spring 40, the second spring 50 and the SMA ring body 33 is converted into the recovery energy for structural reset. Therefore, after the earthquake, the first spring 40, the second spring 50 and the SMA ring body 33 in the self-resetting damper device 100 are deformed and restored, the guide rod 20 is reset, and the structure of the self-resetting damper device 100 is intact, and there is no need to replace the original structural parts.

[0052] In some embodiments, the guide rod 20 includes a rod portion 21 and a connecting end 22 . The connecting end 22 is located at one end of the rod portion 21 . The connecting end 22 is used to connect to a building structure. The rod portion 21 passes through the sleeve 10 along the axial direction of the sleeve 10 and is located inside the sleeve 10 .

[0053] The rod 21 can be inserted into the sleeve 10 so that the annular structure 30 and the first spring 40 can follow the rod 21 into the sleeve 10. The connecting end 22 is used to connect with a building structure (such as a support column under a bridge). The connecting end 22 of the guide rod 20 cooperates with the annular ear plate 11 of the sleeve 10, so that the support column is connected to the bridge.

[0054] In some embodiments, the second spring 50 is sleeved on the rod 21, and one end of the second spring 50 abuts against the sleeve 10, and the other end abuts against the guide rod connecting end 22. When an earthquake occurs, the guide rod 20 moves, and the rod 21 drives the connecting end 22 to move, and the connecting end 22 moves toward the second spring 50. The connecting end 22 and the sleeve 10 abut against the second spring 50, and the connecting end 22 can apply a force to the second spring 50 to compress the second spring 50, and the second spring 50 can buffer the vibration caused by the earthquake to a certain extent.

[0055] In some embodiments, the guide rod 20 includes a chamber 23, the chamber 23 is located at the other end of the guide rod 20, the chamber 23 is located between the first spring 40 and the ring structure 30, and an air hole 231 is opened in the chamber 23, and the air hole 231 is used to circulate liquid. When an earthquake occurs, the rods of the building structure are relatively displaced, driving the guide rod 20 to move, and the end of the chamber 23 of the guide rod 20 is provided with an air hole 231, so that the liquid can enter the chamber 23 through the air hole 231, and the flow process of the liquid can consume part of the earthquake energy.

[0056] In some embodiments, a viscous liquid 12 is further disposed in the sleeve 10 , and the viscous liquid 12 can flow between the sleeve 10 and the chamber 23 ; when the guide rod 20 moves, the viscous liquid 12 can enter the chamber 23 through the air hole 231 .

[0057] The main function of the viscous liquid 12 is to slow down or absorb vibration energy through viscous damping, thereby reducing the vibration amplitude or the impact of damped vibration. When vibration acts on the viscous liquid 12, the viscous resistance between the particles inside the liquid will have a damping effect on the vibration, which is converted into heat energy dissipation. The viscous liquid 12 can move in the chamber 23. When subjected to external force or vibration, the viscous liquid 12 will flow in the chamber 23 and achieve vibration control through viscous damping. Among them, the viscosity of the viscous liquid 12 determines the magnitude of its damping effect. Higher viscosity generally means higher damping, which can provide more effective vibration control. In addition, the viscous liquid 12 should have good temperature stability to ensure stable damping performance over a wide temperature range.

[0058] It should be noted that the viscous liquid 12 also needs to have certain fluidity and stability to ensure that consistent damping characteristics can be maintained during movement and vibration.

[0059] In some embodiments, the annular ear plate 11 includes a pin, which can be connected to a building structure, and the annular ear plate 11 can rotate around the pin. The annular ear plate 11 includes a pin, and the pin can be connected to a building structure. The pin provides a reliable connection point and a rotation axis, so that the annular ear plate 11 can be flexibly rotated and adjusted. The annular ear plate 11 can rotate around the pin, and through such an arrangement, the rotation and adjustment functions of the annular ear plate 11 can be realized. By adjusting the position or angle of the annular ear plate 11, the relative position between the annular ear plate 11 and other components or structures can be changed. For example, the position of the self-resetting damper device 100 is adjusted.

[0060] In some embodiments, a plurality of first steel ring bodies 31, second steel ring bodies 32 and SMA ring bodies 33 are provided, and the plurality of first steel ring bodies 31, second steel ring bodies 32 and SMA ring bodies 33 are overlapped with each other. The number of first steel ring bodies 31, second steel ring bodies 32 and SMA ring bodies 33 can be set according to actual conditions.

[0061] It should be particularly noted that the self-resetting damper device 100 provided in the embodiment of the utility model only shows the part related to the technical problem to be solved by the embodiment of the utility model. It can be understood that the self-resetting damper device 100 provided in the embodiment of the utility model also includes other structures for realizing the functions of the self-resetting damper device 100, which will not be described one by one here.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Under the idea of ​​the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention is described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A self-resetting damper device, characterized in that: include: A sleeve, one end of which is provided with an annular ear plate, the annular ear plate is used to connect with the building structure, and a viscous liquid is provided inside the sleeve; A guide rod, the guide rod is inserted into the sleeve along the axial direction of the sleeve and is located inside the sleeve, and a chamber is provided at the end of the guide rod; A ring structure, the ring structure is located in the sleeve and sleeved on the guide rod; a first spring, the first spring being located in the sleeve and abutting against the ring structure; a second spring, the second spring being sleeved on the guide rod and abutting against the other end of the sleeve; Wherein, the ring structure and the first spring can be compressed and form elastic internal energy after being squeezed by the guide rod, so as to perform subsequent structural reset; The second spring can be compressed and form elastic internal energy after being squeezed by the sleeve, so as to facilitate subsequent structural restoration; The viscous liquid inside the sleeve is squeezed by the guide rod and enters the chamber at the end of the guide rod to consume energy.

2. The self-resetting damper device according to claim 1, characterized in that: The ring body structure includes a first steel ring body, a second steel ring body and an SMA ring body; The first steel ring body and the second steel ring body overlap with the SMA ring body, and the first steel ring body and the second steel ring body can move following the guide rod.

3. The self-resetting damper device according to claim 2, characterized in that: The guide rod comprises a rod portion and a connecting end, wherein the connecting end is located at one end of the rod portion and is used to be connected to a building structure. The rod portion is penetrated through the sleeve along the axial direction of the sleeve and is located inside the sleeve.

4. The self-resetting damper device according to claim 3, characterized in that: The second spring is sleeved on the rod portion, and one end of the second spring abuts against the outside of the sleeve, and the other end of the second spring abuts against the connecting portion.

5. The self-resetting damper device according to claim 4, characterized in that: The chamber is located at the other end of the guide rod, and the chamber is located between the first spring and the ring structure. An air hole is opened in the chamber, and the air hole is used for flowing viscous liquid.

6. The self-resetting damper device according to claim 5, characterized in that: The viscous liquid flows between the sleeve and the chamber; When the rod moves, the viscous liquid can enter the chamber through the air hole.

7. The self-resetting damper device according to claim 1, characterized in that: The annular ear plate comprises a pin shaft, the pin shaft can be connected to the building structure, and the annular ear plate can rotate around the pin shaft.

8. The self-resetting damper device according to claim 7, characterized in that: The connecting end of the guide rod is arranged in an I-shape.

9. The self-resetting damper device according to claim 2, characterized in that: A plurality of the first steel ring bodies, the second steel ring bodies and the SMA ring bodies are provided, and the plurality of the first steel ring bodies, the second steel ring bodies and the SMA ring bodies are overlapped with each other.

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