Damper damping device capable of amplifying displacement
By designing a damper shock absorber with amplified displacement, the lever principle is used to amplify the interlayer displacement, the problem of insufficient energy consumption of viscous dampers in conventional reinforced concrete structures is solved, and more efficient energy consumption and seismic resistance are achieved, reducing engineering costs.
Patent Information
- Application Number
- CN202422478105.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-10-14
AI Technical Summary
In conventional reinforced concrete structures, the interlayer displacement is small under seismic action, resulting in limited energy consumption of viscous dampers and unable to effectively participate in structural shock absorption.
A damper shock absorber device that amplifies displacement is designed to significantly amplify the interlayer displacement during earthquakes through the principle of displacement amplification of lever and lever, thereby improving the working efficiency and energy consumption of viscous dampers.
It significantly improves the working efficiency and energy consumption of viscous dampers, enhances the seismic resistance of the structure, reduces the number of dampers required in the project, and reduces the project cost.
Smart Images
Figure CN223189859U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of building structure shock absorption, and in particular to a displacement-amplifying damper shock absorption device. Background Art
[0002] The mechanism for structural seismic energy dissipation typically involves installing dampers within a building structure to effectively dissipate the energy input during an earthquake, significantly reducing the structure's seismic response. Among the various damper types, viscous fluid dampers (VFDs) have been widely used in engineering seismic mitigation projects due to their performance characteristics. As velocity-type dampers, they require a large displacement per unit time to fully utilize their energy dissipation function.
[0003] However, in actual engineering design and application, researchers have found that the damper's energy dissipation efficiency is closely related to the structure's interstory drift. For conventional reinforced concrete structures, interstory drifts generated by earthquakes reaching their design fortification levels are typically small. This phenomenon limits the energy dissipation effect of viscous dampers in such situations, resulting in minimal changes in the structure's effective added damping before and after the installation of the viscous damper. Utility Model Content
[0004] The embodiments of the present application provide a damper shock-absorbing device that amplifies displacement, thereby solving the technical problem in the prior art that, in conventional reinforced concrete, under the action of an earthquake that reaches its seismic fortification level, the inter-layer displacement generated is small, so that the viscous damper cannot participate in energy consumption or participates less.
[0005] The embodiment of the present application provides a damper shock absorbing device for amplifying displacement, comprising a first support plate, a first connecting rod, a displacement amplifying lever, a second connecting rod, a viscous damper, a first pin, a second support plate and a third support plate; the first support plate is installed at the bottom of the upper cantilever wall, and its side away from the upper cantilever wall is hinged to the first connecting rod; the displacement amplifying lever is provided with a first connecting hole, a second connecting hole and a third connecting hole at intervals along its length direction, the first connecting hole and the third connecting hole are respectively located at the two ends of the displacement amplifying lever, and the second connecting hole is located in the middle of the displacement amplifying lever; the end of the first connecting rod away from the first support plate is hinged to the displacement amplifying lever through the second connecting hole; the third The support plate and the second support plate are both installed on the top of the lower cantilever wall and are spaced apart along the length direction of the lower cantilever wall; the third support plate is provided with a first mounting hole corresponding to the first connecting hole; one end of the first latch passes through the first connecting hole and the first mounting hole in sequence, so that the displacement amplification lever rotates around the first latch; the second connecting rod is hinged to the displacement amplification lever through the third connecting hole, and the end of the second connecting rod away from the displacement amplification lever is connected to the movable end of the viscous damper; the fixed end of the viscous damper is fixedly connected to the second support plate, and the axial direction of the viscous damper is parallel to the ground plane; the second support plate is configured to limit the longitudinal degree of freedom of the viscous damper.
[0006] In a possible implementation, the displacement-amplifying damper shock-absorbing device further includes two first anchor plates; the two first anchor plates are respectively arranged between the first support plate and the upper cantilever wall, and between the second support plate and the lower cantilever wall.
[0007] In one possible implementation, the displacement-amplifying damper shock-absorbing device also includes a second pin; the first support plate includes two parallel connecting plates; the two connecting plates are spaced apart along the width direction of the corresponding first anchor plates, and are both provided with a second mounting hole; the first connecting rod is provided with a third mounting hole corresponding to the second mounting hole at one end away from the displacement-amplifying lever; the second pin passes through one of the second mounting holes, the third mounting hole and the other second mounting hole in sequence, so that the first connecting rod is connected between the two connecting plates.
[0008] In a possible implementation, the displacement-amplifying damper shock-absorbing device further includes a second anchor plate; the second anchor plate is disposed between the third support plate and the lower cantilever wall.
[0009] In a possible implementation, the first connecting rod and the second connecting rod are located on the same side of the displacement amplifying lever.
[0010] In a possible implementation, a gap is provided between the displacement amplifying lever and the third support plate.
[0011] In a possible implementation, a lug is provided at the movable end of the viscous damper; the lug is connected to an end of the second connecting rod away from the displacement amplification lever.
[0012] One or more technical solutions provided in the embodiments of this application have at least the following technical effects:
[0013] The displacement-amplifying damper shock-absorbing device provided in an embodiment of the present application includes a first support plate, a first connecting rod, a displacement-amplifying lever, a second connecting rod, a viscous damper, a first latch, a second support plate, and a third support plate. When an earthquake occurs, interstory displacement is immediately generated and transmitted to the first support plate via the upper cantilever wall. The first support plate then undergoes horizontal displacement, which is effectively transmitted to the second connecting hole on the displacement-amplifying lever via the first connecting rod. At this point, the displacement-amplifying lever begins to rotate around the first latch. Using the principle of leverage, the displacement received at the second connecting hole is proportionally amplified at the third connecting hole. This amplified displacement is then transmitted to the viscous damper via the second connecting rod, significantly amplifying the interstory displacement during the earthquake and thereby improving the operating efficiency and energy consumption of the viscous damper. Therefore, the displacement-amplifying damper shock-absorbing device of the present application achieves proportional amplification of the input displacement through a carefully designed displacement-amplifying lever. This design enables the viscous damper to exert its energy-absorbing function earlier and more fully under the action of an earthquake, which not only enhances the seismic performance of the structure, but also improves the effectiveness of the viscous damper, providing a more reliable guarantee for building safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0015] Figure 1 A schematic structural diagram of a displacement-amplifying damper shock-absorbing device provided in an embodiment of the present application;
[0016] Figure 2 A front view of a displacement-amplifying damper shock absorbing device provided in an embodiment of the present application;
[0017] Figure 3 This is a schematic structural diagram of the displacement amplification lever provided in an embodiment of the present application.
[0018] Icon: 1-first support plate; 101-second mounting hole; 102-connecting plate; 2-first connecting rod; 3-displacement amplification lever; 31-first connecting hole; 32-second connecting hole; 33-third connecting hole; 4-second connecting rod; 5-viscous damper; 51-ear plate; 6-second support plate; 7-third support plate; 8-first anchor plate; 9-second anchor plate; 10-upper cantilever wall; 11-lower cantilever wall. DETAILED DESCRIPTION
[0019] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.
[0020] In the description of the embodiments of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present application. The terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0021] The embodiment of the present application provides a damper shock absorbing device for amplifying displacement, such as Figures 1 to 3As shown. The displacement-amplifying damper shock-absorbing device includes a first support plate 1, a first connecting rod 2, a displacement-amplifying lever 3, a second connecting rod 4, a viscous damper 5, a first latch, a second support plate 6, and a third support plate 7. The first support plate 1 is mounted on the bottom of the upper cantilever wall 10, and its side away from the upper cantilever wall 10 is hinged to the first connecting rod 2. The displacement-amplifying lever 3 is provided with a first connecting hole 31, a second connecting hole 32, and a third connecting hole 33 at intervals along its length. The first connecting hole 31 and the third connecting hole 33 are respectively located at the two ends of the displacement-amplifying lever 3, and the second connecting hole 32 is located in the middle of the displacement-amplifying lever 3. The end of the first connecting rod 2 away from the first support plate 1 is hinged to the displacement-amplifying lever 3 through the second connecting hole 32. The third support plate 7 and the second support plate 6 are both mounted on the top of the lower cantilever wall 11 and are spaced apart along the length of the lower cantilever wall 11. The third support plate 7 is provided with a first mounting hole corresponding to the first connecting hole 31. One end of the first latch passes through the first connecting hole 31 and the first mounting hole in sequence, so that the displacement amplification lever 3 can rotate around the first latch. The second connecting rod 4 is hinged to the displacement amplification lever 3 through the third connecting hole 33, and the end of the second connecting rod 4 away from the displacement amplification lever 3 is connected to the movable end of the viscous damper 5. The fixed end of the viscous damper 5 is fixedly connected to the second support plate 6, and the axial direction of the viscous damper 5 is parallel to the ground plane. The second support plate 6 is configured to limit the longitudinal degree of freedom of the viscous damper 5. Specifically, the fixed end of the viscous damper 5 is rigidly connected to the second support plate 6. The rigid connection of the second support plate 6 to the fixed end of the viscous damper 5 effectively limits its longitudinal degree of freedom, ensuring that the viscous damper 5 can operate stably under the action of an earthquake, avoiding additional displacement and stress caused by vibration, and further improving the seismic performance of the device.
[0022] Furthermore, the position of the second connection hole 32 of the displacement amplification lever 3 can be adjusted according to actual needs when the material strength allows, so as to achieve different amplification ratios of the inter-layer displacement.
[0023] It should be noted that when an earthquake occurs, interstory displacement is immediately generated and transmitted to the first support plate 1 through the upper cantilever wall 10. The first support plate 1 then undergoes horizontal displacement, which is effectively transmitted to the second connection hole 32 of the displacement amplification lever 3 via the first connecting rod 2. At this point, the displacement amplification lever 3 begins to rotate around the first latch. Utilizing the lever principle, the displacement received at the second connection hole 32 is proportionally amplified at the third connection hole 33. This amplified displacement is then transmitted to the viscous damper 5 via the second connecting rod 4, significantly amplifying the interstory displacement during the earthquake and thereby improving the efficiency and energy dissipation of the viscous damper 5. Therefore, the displacement amplification damper shock absorption device of the present application achieves proportional amplification of the input displacement through the carefully designed displacement amplification lever 3. This design enables the viscous damper 5 to exert its energy dissipation function earlier and more fully during earthquakes, enhancing the seismic performance of the structure and the effectiveness of the viscous damper 5.
[0024] Specifically, if Figure 3 As shown, the device's displacement amplification mechanism is achieved through the ratio of lever arm lengths. When the second connection hole 32 is located at the midpoint of the displacement amplification lever 3, the first connection hole 31 serves as the lever's fulcrum. The power arm length is the distance from the second connection hole 32 to the first connection hole 31, and the resistance arm length is the distance from the first connection hole 31 to the third connection hole 33. At this point, the ratio of the displacement before and after amplification is 1:2.
[0025] Furthermore, when the material strength allows, the displacement amplification ratio can be changed by adjusting the position of the second connecting hole 32 on the lever to adapt to different engineering requirements.
[0026] In the embodiment of the present application, the displacement-amplifying damper shock-absorbing device further includes two first anchor plates 8. The two first anchor plates 8 are respectively arranged between the first support plate 1 and the upper cantilever wall 10, and between the second support plate 6 and the lower cantilever wall 11.
[0027] Specifically, the second support plate 6 and the first support plate 1 are respectively connected to the corresponding first anchor plates 8 by welding.
[0028] In an embodiment of the present application, the displacement-amplifying damper shock-absorbing device further includes a second latch. The first support plate 1 includes two parallel connecting plates 102. The two connecting plates 102 are spaced apart along the width direction of the corresponding first anchor plate 8, and each is provided with a second mounting hole 101. A third mounting hole corresponding to the second mounting hole 101 is provided at one end of the first connecting rod 2 away from the displacement-amplifying lever 3. The second latch sequentially passes through one of the second mounting holes 101, the third mounting hole, and the other second mounting hole 101, thereby connecting the first connecting rod 2 between the two connecting plates 102.
[0029] It should be noted that the second pin passes through the second mounting hole 101 on the two connecting plates 102 and the third mounting hole on the first connecting rod 2, forming a stable three-point connection structure, which enhances the connection strength between the first connecting rod 2 and the first support plate 1 and ensures the stability and reliability of the connection.
[0030] In the embodiment of the present application, the displacement-amplifying damper shock-absorbing device further includes a second anchor plate 9. The second anchor plate 9 is arranged between the third support plate 7 and the lower cantilever wall 11.
[0031] Specifically, the second anchor plate 9 is welded to the third support plate 7. As a key component connecting the third support plate 7 and the lower cantilever wall 11, the second anchor plate 9 can effectively and firmly fix the two together.
[0032] The third support is a triangular structure, and the first mounting hole is located at the top of the triangular structure.
[0033] In the embodiment of the present application, the first connecting rod 2 and the second connecting rod 4 are located on the same side of the displacement amplifying lever 3 .
[0034] It should be noted that arranging the first and second connecting rods 2 and 4 on the same side of the displacement amplification lever 3 contributes to the compactness of the entire shock absorption device. When an earthquake occurs, the interstory displacement is transmitted to the displacement amplification lever 3 via the first connecting rod 2. The amplified displacement is then transmitted to the viscous damper 5 via the second connecting rod 4. Since both are located on the same side, path deflections and energy loss during displacement transmission are reduced, thereby improving overall transmission efficiency.
[0035] The present application is not limited to the above structure, and the second connecting rod 4 and the first connecting rod 2 can be located on both sides of the displacement amplifying lever 3.
[0036] In the embodiment of the present application, a gap is provided between the displacement amplifying lever 3 and the third support plate 7 to avoid wear between the displacement amplifying lever 3 and the third support plate 7. At the same time, the presence of the gap also helps to ensure smooth rotation of the displacement amplifying lever 3.
[0037] In the embodiment of the present application, a lug 51 is provided at the movable end of the viscous damper 5. The lug 51 is connected to an end of the second connecting rod 4 away from the displacement amplifying lever 3.
[0038] It should be noted that the ear plate 51 serves as a connecting member, which has a larger contact area and strength, and can more effectively connect the second connecting rod 4 and the movable end of the viscous damper 5, thereby enhancing the stability and reliability of the connection.
[0039] In existing technologies, too little interstory displacement results in low energy dissipation efficiency of the viscous dampers 5. Adding more viscous dampers 5 to achieve the desired shock absorption goal increases project costs. This application, under design earthquake conditions, enables the viscous dampers 5 to participate more efficiently in the energy dissipation process, while also improving the performance of individual viscous dampers 5. This design directly reduces the number of damper devices required in actual projects, effectively reducing project costs.
[0040] Furthermore, the displacement-amplifying damper shock-absorbing device has a simple structure and is easy to manufacture and install. The device can be transported to a site for assembly after production in a processing plant, ensuring product quality and economic efficiency, and can be promoted in engineering applications.
[0041] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.
[0042] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been 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 or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.
Claims
1. A displacement-amplifying damper shock-absorbing device, characterized in that: It comprises a first support plate (1), a first connecting rod (2), a displacement amplifying lever (3), a second connecting rod (4), a viscous damper (5), a first latch, a second support plate (6) and a third support plate (7); The first support plate (1) is installed at the bottom of the upper cantilever wall (10), and the side thereof away from the upper cantilever wall (10) is hinged to the first connecting rod (2); The displacement amplifying lever (3) is provided with a first connecting hole (31), a second connecting hole (32) and a third connecting hole (33) at intervals along its length direction; the first connecting hole (31) and the third connecting hole (33) are respectively located at two ends of the displacement amplifying lever (3); and the second connecting hole (32) is located in the middle of the displacement amplifying lever (3); One end of the first connecting rod (2) away from the first support plate (1) is hinged to the displacement amplifying lever (3) through the second connecting hole (32); The third support plate (7) and the second support plate (6) are both installed on the top of the lower cantilever wall (11) and are spaced apart along the length direction of the lower cantilever wall (11); The third support plate (7) is provided with a first mounting hole corresponding to the first connecting hole (31); One end of the first latch passes through the first connecting hole (31) and the first mounting hole in sequence, so that the displacement amplifying lever (3) rotates around the first latch; The second connecting rod (4) is hinged to the displacement amplifying lever (3) through the third connecting hole (33), and one end of the second connecting rod (4) away from the displacement amplifying lever (3) is connected to the movable end of the viscous damper (5); The fixed end of the viscous damper (5) is fixedly connected to the second support plate (6), and the axial direction of the viscous damper (5) is parallel to the ground plane; The second support plate (6) is configured to limit the longitudinal degree of freedom of the viscous damper (5).
2. The displacement-amplifying damper shock-absorbing device according to claim 1, characterized in that: Also includes two first anchor plates (8); The two first anchor plates (8) are respectively arranged between the first support plate (1) and the upper cantilever wall (10), and between the second support plate (6) and the lower cantilever wall (11).
3. The displacement-amplifying damper shock-absorbing device according to claim 2, characterized in that: Also included is a second latch; The first support plate (1) comprises two parallel connecting plates (102); The two connecting plates (102) are spaced apart along the width direction of the corresponding first anchor plate (8), and both are provided with a second mounting hole (101); A third mounting hole corresponding to the second mounting hole (101) is provided at one end of the first connecting rod (2) away from the displacement amplifying lever (3); The second latch passes through one of the second mounting holes (101), the third mounting hole and the other second mounting hole (101) in sequence, so that the first connecting rod (2) is connected between the two connecting plates (102).
4. The displacement-amplifying damper shock-absorbing device according to claim 1, characterized in that: Also includes a second anchor plate (9); The second anchor plate (9) is arranged between the third support plate (7) and the lower cantilever wall (11).
5. The displacement-amplifying damper shock-absorbing device according to claim 1, characterized in that: The first connecting rod (2) and the second connecting rod (4) are located on the same side of the displacement amplifying lever (3).
6. The displacement-amplifying damper shock-absorbing device according to claim 1, characterized in that: A gap is provided between the displacement amplifying lever (3) and the third support plate (7).
7. The displacement-amplifying damper shock-absorbing device according to claim 1, characterized in that: The movable end of the viscous damper (5) is provided with an ear plate (51); The ear plate (51) is connected to an end of the second connecting rod (4) away from the displacement amplifying lever (3).