A composite viscous damping wall with additional multi-order stiffness

Abstract

The present invention provides an additional multi-order stiffness composite viscous damping wall, which belongs to the technical field of damping equipment, and includes a first connecting seat, a second connecting seat, a first damping component, a second damping component and a limiting latch component, wherein the second connecting seat and the first connecting seat have the freedom to slide along a first direction; the first damping component has two connecting ends, the two connecting ends can move relative to each other along the first direction and generate damping, and one of the connecting ends is connected to the second connecting seat; the second damping component has two connecting ends, the two connecting ends can move relative to each other along the first direction and generate damping, and one of the connecting ends is connected to the second connecting seat; the limiting latch component is fixedly connected to the first connecting seat and connected to the other connecting end of the first damping component; the limiting latch component is also provided with a sliding groove arranged along the first direction, and the other connecting end of the second damping component is slidably matched with the sliding groove.

Description

Technical Field

[0001] The invention belongs to the technical field of damping equipment, and more specifically, relates to an additional multi-order stiffness composite viscous damping wall. Background Art

[0002] The damper is a common buffering and energy dissipation component. In some buildings, such as houses, roads and bridges, and water conservancy projects, dampers are often needed to offset the impact of earthquakes or other vibration displacements on buildings. However, current building dampers usually use a single damping component directly connected to the part that needs to be buffered and dissipated. However, this type of damper has a relatively simple function, and its buffering and energy dissipation effect is basically linear, which makes it difficult to cope with more complex vibration displacement situations. Summary of the invention

[0003] The purpose of the present invention is to provide an additional multi-order stiffness composite viscous damping wall to solve the technical problem in the prior art that the current damper is difficult to cope with relatively complex vibration displacement situations.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide an additional multi-order stiffness composite viscous damping wall, including a first connecting seat, a second connecting seat, a first damping assembly and a second damping assembly, the second connecting seat and the first connecting seat have the freedom to slide along the first direction, and are provided with a start-slip limit groove; the first damping assembly has two connecting ends, the two connecting ends can move relative to each other along the first direction and generate damping, and the two connecting ends are fixedly connected to the first connecting seat and the second connecting seat respectively; the second damping assembly has two connecting ends, the two connecting ends can move relative to each other along the first direction and generate damping, and one of the connecting ends is fixedly connected to the first connecting seat, and the other connecting end slides with the start-slip limit groove of the second connecting seat in the first direction, and the sliding stroke is greater than or equal to zero.

[0005] In combination with the above technical solution, in a possible implementation, the second damping component is a friction damping component, and the first damping component is a viscous damping component; and the first damping component is a plurality of first damping components arranged in parallel.

[0006] In combination with the above technical scheme, in a possible implementation method, the first connecting seat includes a first connecting plate and a limiting tenon assembly, and the limiting tenon assembly is fixedly connected to the first connecting plate; the second connecting seat includes a second connecting plate and a box-type enclosure, and the box-type enclosure is fixedly connected to the second connecting plate, and the first damping assembly, the second damping assembly and the limiting tenon assembly are all located in the box-type enclosure; and the two connecting ends of the first damping assembly are respectively connected to the limiting tenon assembly and the box-type enclosure, and the two connecting ends of the second damping assembly are also respectively connected to the limiting tenon assembly and the box-type enclosure, and the sliding limiting groove is arranged on the box-type enclosure.

[0007] In combination with the above technical scheme, in a possible implementation method, the limit latch assembly includes a base plate, the base plate is fixedly connected to the first connecting plate, and the base plate has a slide groove arranged along the first direction; the second damping assembly includes a sliding shaft, a friction plate, a friction plate, an elastic member, a starting slider and two fasteners, the sliding shaft passes through the slide groove and slidably cooperates with the slide groove; the friction plate is arranged on the base plate and is located at the outer periphery of the slide groove; the friction plate is sleeved on the sliding shaft and cooperates with the friction plate to form a sliding friction pair; the elastic member is arranged on the side of the friction plate facing away from the friction plate to apply pressure to the friction plate; the starting slider is sleeved on the sliding shaft and is located on the side of the elastic member facing away from the friction plate, and the outer end of the starting slider is arranged in the sliding limit groove; the two fasteners are respectively located at both ends of the sliding shaft to press the base plate, friction plate, friction plate, elastic member and starting slider; wherein the friction plate is one connecting end of the second damping assembly, and the starting slider is the other connecting end of the second damping assembly.

[0008] In combination with the above technical solution, in a possible implementation method, there are two friction plates, friction sheets, elastic parts and starting blocks, which are respectively located on both sides of the base plate; the elastic part is a spring or elastic rubber ring sleeved on the sliding shaft; the fastener is a nut, a retaining ring or a pin; the side of the friction plate facing the friction sheet is a mirror structure.

[0009] In combination with the above technical solution, in a possible implementation method, the limit latch assembly also includes two clamping plates, which are respectively located on both sides of the base plate and fixedly connected to the base plate; the first damping assembly includes a piston rod and a sleeve, the piston rod is fixedly connected to the box-type enclosure, and a piston is provided in the middle; the sleeve is slidably sleeved in the middle of the piston rod and is located between the two clamping plates, and compressed gas or fluid is provided inside the sleeve.

[0010] In combination with the above technical solution, in a possible implementation method, the two clamping plates are perpendicular to the base plate and are fixedly connected to the first connecting plate; the two ends of the piston rod are connected to the box-type enclosure by bolt-adjusting nut fastening, clamping, pinning or welding.

[0011] In combination with the above technical solution, in a possible implementation, there are multiple second damping components, and the second connecting seat is provided with multiple sliding limit grooves corresponding to the second damping components one by one, and the sliding strokes between different second damping components and the corresponding sliding limit grooves are different.

[0012] In combination with the above technical solution, in a possible implementation, the first connecting seat and the second connecting seat are both made of steel components, and the first connecting plate and the second connecting plate are further provided with embedded parts.

[0013] In combination with the above technical solution, in a possible implementation, a limiting convex strip is provided on the first connecting plate, and a sliding groove corresponding to the limiting convex strip is provided on the box-shaped enclosure.

[0014] In combination with the above technical solution, in a possible implementation method, the additional multi-order stiffness composite viscous damping wall also includes a stroke adjustment component, which is arranged on the second connecting seat and located at the start-slip limit groove, for adjusting the length of the start-slip limit groove in the first direction, thereby adjusting the sliding stroke between the second damping component and the start-slip limit groove.

[0015] The beneficial effects of the additional multi-order stiffness composite viscous damping wall provided by the present invention are: compared with the prior art, the present invention can form a composite velocity damper with additional multi-order stiffness through the cooperation of the first connecting seat, the second connecting seat, the first damping component and the second damping component; it can solve the energy consumption characteristics of small initial energy consumption or increased stiffness due to rare earthquakes, facilitate the installation of the product, ensure the installation accuracy control of the product, and avoid the safety hazards of uneven force on the embedded parts caused by the displacement of the installation axis of the traditional damper, large horizontality deviation, and small node plate size. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A schematic diagram of a cross-sectional structure in the main view of an additional multi-order stiffness composite viscous damping wall provided in an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of a side sectional structure of an additional multi-order stiffness composite viscous damping wall provided in an embodiment of the present invention;

[0019] Figure 3 A schematic diagram of a cross-sectional structure of the additional multi-order stiffness composite viscous damping wall provided in an embodiment of the present invention, excluding the main part of the second damping component;

[0020] Figure 4 A schematic diagram of a side sectional structure of a first connection seat portion of an additional multi-order stiffness composite viscous damping wall provided in an embodiment of the present invention;

[0021] Figure 5 A schematic diagram of a side sectional structure of a second connection seat portion of an additional multi-order stiffness composite viscous damping wall provided in an embodiment of the present invention;

[0022] Figure 6 A schematic diagram of a cross-sectional structure in the main view direction of the second connecting seat of the additional multi-order stiffness composite viscous damping wall provided in an embodiment of the present invention when the starting sliding displacement (i.e., sliding stroke) is equal to zero;

[0023] Figure 7 A schematic diagram of a cross-sectional structure in the main view direction of the second connecting seat of the additional multi-order stiffness composite viscous damping wall provided in an embodiment of the present invention when the starting sliding displacement (i.e., sliding stroke) is greater than zero;

[0024] Figure 8 A schematic diagram of a cross-sectional structure in the main view direction of a second connecting seat of an additional multi-order stiffness composite viscous damping wall provided in another specific embodiment of the present invention when the starting sliding displacement (i.e., sliding stroke) is greater than zero;

[0025] Fig. 9 A schematic diagram of the cross-sectional structure of an additional multi-order stiffness composite viscous damping wall provided in front view according to another embodiment of the present invention.

[0026] Among them, the reference numerals in the figures are as follows:

[0027] 10. First connecting seat; 11. First connecting plate; 12. Base plate; 13. Slide groove; 14. Card plate;

[0028] 20. Second connecting seat; 21. Second connecting plate; 22. Box-shaped enclosure; 23. Sliding limit groove;

[0029] 30. first damping assembly; 31. piston rod; 32. sleeve;

[0030] 40. second damping assembly; 41. sliding shaft; 42. friction plate; 43. friction sheet; 44. elastic member; 45. lifting slide block; 46. fastener;

[0031] 51. Top plate; 52. Buffer cylinder; 53. Pressure relief valve; 54. Pneumatic switch; 55. Ventilation pipe;

[0032] 61. Airbag; 62. Whistle; 63. Cushion capsule; 64. Non-Newtonian fluid. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0034] It should be further explained that the drawings and implementation modes of the present invention mainly describe the concept of the present invention. On the basis of this concept, the specific forms and settings of some connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, on the premise that those skilled in the art understand the concept of the present invention, those skilled in the art can implement the above-mentioned specific forms and settings in a well-known manner.

[0035] When an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0036] The directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. The directions or positional relationships indicated by the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0037] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, and "several" means one or more, unless otherwise clearly and specifically defined.

[0038] The additional multi-order stiffness composite viscous damping wall provided by the present invention is now described.

[0039] like Figures 1 to 3As shown, the first embodiment of the present invention provides an additional multi-order stiffness composite viscous damping wall, including a first connecting seat 10, a second connecting seat 20, a first damping assembly 30 and a second damping assembly 40, wherein the second connecting seat 20 and the first connecting seat 10 have the freedom to slide along the first direction, and are provided with a start-slip limit groove 23; the first damping assembly 30 has two connecting ends, the two connecting ends can move relative to each other along the first direction and generate damping, and the two connecting ends are fixedly connected to the first connecting seat 10 and the second connecting seat 20 respectively; the second damping assembly 40 has two connecting ends, the two connecting ends can move relative to each other along the first direction and generate damping, and one of the connecting ends is fixedly connected to the first connecting seat 10, and the other connecting end is slidably matched with the start-slip limit groove 23 of the second connecting seat 20 along the first direction, and the sliding stroke is greater than or equal to zero. The fixed connection includes a limit connection or a limit match.

[0040] When in use, the sliding stroke between the second damping assembly 40 and the start-sliding limit groove 23 is selected as needed, and then the first connecting seat 10 and the second connecting seat 20 are respectively connected to the parts that need to be buffered and dissipated, so that the first connecting seat 10 and the second connecting seat 20 respectively follow the movement of the parts that need to be buffered and dissipated;

[0041] like Figure 6 As shown, when the sliding stroke between the selected second damping assembly 40 and the start-slip limit groove 23 is zero, the relative movement of the first connecting seat 10 and the second connecting seat 20 causes the first damping assembly 30 and the second damping assembly 40 to move simultaneously to perform buffering and energy dissipation;

[0042] And as Figure 7 As shown, when the sliding stroke between the selected second damping assembly 40 and the start-slip limit groove 23 is greater than zero, the relative movement of the first connecting seat 10 and the second connecting seat 20 first drives the first damping assembly 30 to move for buffering and energy dissipation; after the relative movement between the first connecting seat 10 and the second connecting seat 20 is greater than the sliding stroke between the second damping assembly 40 and the start-slip limit groove 23, the second damping assembly 40 also starts to move for buffering and energy dissipation;

[0043] In this way, multi-stage adjustment of buffering energy dissipation can be achieved, that is, when moving in a small range, it has a smaller energy dissipation effect, and when moving in a large range, it will have a larger energy dissipation effect, thereby blocking the continuation of movement and playing a good buffering energy dissipation role.

[0044] Compared with the prior art, the additional multi-order stiffness composite viscous damping wall provided in this embodiment can form a composite velocity damper with additional multi-order stiffness through the cooperation of the first connecting seat 10, the second connecting seat 20, the first damping assembly 30, the second damping assembly 40 and the limiting tenon assembly; it can solve the energy consumption characteristics of small initial energy consumption or increased stiffness due to rare earthquakes, facilitate the installation of the product, ensure the installation accuracy control of the product, and avoid the safety hazards of uneven force on the embedded parts caused by the displacement of the installation axis of the traditional damper, large horizontality deviation, and small node plate size.

[0045] like Figures 1 to 8 As shown, a specific implementation manner provided by the present invention based on the first implementation manner is as follows.

[0046] The second damping assembly 40 is a friction damping assembly, and the first damping assembly 30 is a viscous damping assembly.

[0047] This form actually provides a velocity damper of viscous damper-friction damper composite, which uses its similar hysteresis curve form to increase energy dissipation capacity. The friction damper is composited into the viscous damper to freely set the starting displacement, that is, the above-mentioned sliding stroke, so that when the starting displacement is zero, the friction damper and the viscous damper move synchronously, increasing the initial energy dissipation capacity and solving the gap problem of the small displacement viscous damper; when the starting displacement is greater than zero, the friction damper starts in the second order, increasing the energy dissipation capacity of the later damper and providing a certain stiffness for the structure. Ultimately, the energy dissipation characteristics of small initial energy dissipation or increased stiffness in rare earthquakes can be solved.

[0048] In some specific embodiments, Fig. 9 As shown, a plurality of first damping assemblies 30 are arranged in parallel to realize parallel connection of multiple groups of dampers, thereby improving the blocking effect.

[0049] In some specific embodiments, the first connecting seat 10 includes a first connecting plate 11 and a limiting tenon assembly, which is fixedly connected to the first connecting plate 11; the second connecting seat 20 includes a second connecting plate 21 and a box-shaped enclosure 22, which is fixedly connected to the second connecting plate 21, and the first damping assembly 30, the second damping assembly 40 and the limiting tenon assembly are all located in the box-shaped enclosure 22; and the two connecting ends of the first damping assembly 30 are respectively connected to the limiting tenon assembly and the box-shaped enclosure 22, and the two connecting ends of the second damping assembly 40 are also respectively connected to the limiting tenon assembly and the box-shaped enclosure 22, and the sliding limiting groove 23 is arranged on the box-shaped enclosure 22.

[0050] In this way, a box-type damping wall structure can be formed only by the cooperation of the first connecting plate 11, the second connecting plate 21 and the box-type enclosure 22. It can be used as a part of the wall, which not only protects the internal components but also is easier to install and use. When in use, the first connecting plate 11 and the second connecting plate 21 can be used to connect to two sections of the wall respectively, or to connect to the beam and the wall respectively.

[0051] In addition, in some other specific embodiments, the structures of the first connection seat 10 and the second connection seat 20 can be interchanged, that is, compared with the above embodiment, the first connection seat 10 includes the second connection plate 21 and the box-shaped enclosure 22, the second connection seat 20 includes the first connection plate 11 and the limit clamp assembly, and the sliding limit groove 23 is provided on the limit clamp assembly. However, in order to facilitate the description of the specific structure, the specific structure is introduced below based on the previous embodiment.

[0052] like Figure 1 and Figure 2 As shown, the limit latch assembly includes a base plate 12, which is fixedly connected to the first connecting plate 11, and the base plate 12 has a slide groove 13 arranged along the first direction; the second damping assembly 40 includes a sliding shaft 41, a friction plate 42, a friction sheet 43, an elastic member 44, a sliding block 45 and two fasteners 46, the sliding shaft 41 passes through the slide groove 13 and slides with the slide groove 13; the friction plate 42 is arranged on the base plate 12 and is located at the periphery of the slide groove 13; the friction sheet 43 is sleeved on the sliding shaft 41 and cooperates with the friction plate 42 to form a sliding friction pair; the elastic member 44 is arranged on the side of the friction plate 43 facing away from the friction plate 42 to apply pressure to the friction plate 43; the lifting slider 45 is sleeved on the sliding shaft 41 and is located on the side of the elastic member 44 facing away from the friction plate 43, and the outer end of the lifting slider 45 is arranged in the sliding limit groove 23; the two fasteners 46 are respectively located at the two ends of the sliding shaft 41 to press the base plate 12, the friction plate 42, the friction plate 43, the elastic member 44 and the lifting slider 45; wherein the friction plate 42 is one connecting end of the second damping assembly 40, and the lifting slider 45 is the other connecting end of the second damping assembly 40.

[0053] When in use, when the relative movement displacement of the first connecting seat 10 and the second connecting seat 20 is within the sliding travel range between the second damping assembly 40 and the start-slip limit groove 23, due to the large friction between the friction plate 43 and the friction plate 42 under the pressure of the elastic member 44, the start-slip block 45 will move back and forth in the start-slip limit groove 23, so that only the first damping assembly 30 participates in the buffering and energy dissipation, while the second damping assembly 40 does not participate in the buffering and energy dissipation;

[0054] When the relative movement displacement of the first connecting seat 10 and the second connecting seat 20 exceeds the sliding travel range between the second damping assembly 40 and the sliding limit groove 23, the sliding block 45 abuts against one side of the sliding limit groove 23, so that relative movement is generated between the friction plate 43 and the friction plate 42, so that the second damping assembly 40 participates in buffering and energy dissipation.

[0055] In some cases, if the displacement of the relative movement of the first connecting seat 10 and the second connecting seat 20 exceeds the sum of the sliding stroke between the second damping component 40 and the start-slip limit groove 23 and the sliding stroke between the sliding shaft 41 and the sliding groove 13, the second damping component 40 will no longer participate in the buffering energy dissipation; at this time, according to the actual needs, the first damping component 30 can continue to participate in the buffering energy dissipation, or the maximum sliding stroke between the first connecting seat 10 and the second connecting seat 20 can be set. For example, when the sliding stroke between the first connecting seat 10 and the second connecting seat 20 is about to approach the sum of the sliding stroke between the second damping component 40 and the start-slip limit groove 23 and the sliding stroke between the sliding shaft 41 and the sliding groove 13, the base plate 12 abuts against the box-type enclosure 22 to prevent the first damping component 30 from continuing to participate in the buffering energy dissipation. In view of this situation, in order to avoid direct collision between the base plate 12 and the box-type enclosure 22 to cause structural deformation, a buffer layer can be set between the base plate 12 (or the card plate 14 below) and the box-type enclosure 22, such as Figure 8 As shown, in some specific embodiments, the buffer layer includes an airbag 61 attached to the box-type enclosure 22, and the airbag 61 is connected to a whistle 62 fixed on the box-type enclosure 22, so as to emit a sound to alarm when the substrate 12 (or the card plate 14 below) squeezes the airbag; and buffer capsules 63 are arranged in an array in the airbag 61, the buffer capsules 63 are made of elastic material, and prop up the airbag 61, and the buffer capsules 63 are filled with non-Newtonian fluid 64 to absorb a large amount of impact energy through solid-liquid phase change during impact, and after the substrate 12 (or the card plate 14 below) leaves, the buffer capsules 63 are restored to their original shape under the action of the elastic material, and prop up the airbag 61 to prepare for the next impact.

[0056] Furthermore, there are two friction plates 42, friction sheets 43, elastic members 44 and sliding blocks 45, which are respectively located on both sides of the base plate 12, so as to obtain a more balanced friction force and enhance the effect of buffering and energy dissipation; the elastic member 44 is a spring or elastic rubber ring sleeved on the sliding shaft 41. In a specific embodiment, the elastic member 44 is a butterfly spring; the fastener 46 is a form or component that can be fastened and fixed, such as a nut, a retaining ring or a pin; the side of the friction plate 42 facing the friction sheet 43 is a mirror structure to reduce the wear of the friction sheet 43.

[0057] like Figures 1 to 5As shown, the limit latch assembly also includes two clamping plates 14, which are respectively located on both sides of the base plate 12 and fixedly connected to the base plate 12; the first damping assembly 30 includes a piston rod 31 and a sleeve 32, the piston rod 31 is fixedly connected to the box-type enclosure 22, and a piston is provided in the middle; the sleeve 32 is slidably sleeved in the middle of the piston rod 31, and is located between the two clamping plates 14, and compressed gas or fluid is provided inside the sleeve 32.

[0058] In this way, the two sides of the sleeve 32 can be limited by the two clamping plates 14. When the first connecting seat 10 drives the clamping plate 14 to move, the sleeve 32 is driven to slide on the piston rod 31, so that the compressed gas or fluid inside the sleeve 32 moves on both sides of the piston to form viscous resistance for buffering and energy dissipation.

[0059] Furthermore, the two clamping plates 14 are perpendicular to the base plate 12 and are fixedly connected to the first connecting plate 11 to strengthen the base plate 12; both ends of the piston rod 31 are connected to the box-type enclosure 22 by bolt adjustment nut fastening, clamping, pinning or welding.

[0060] In some specific embodiments, there are multiple second damping components 40, and the second connecting seat 20 is provided with multiple sliding limit grooves 23 corresponding to the second damping components 40 one by one. The sliding strokes between different second damping components 40 and the corresponding sliding limit grooves 23 are different to achieve more orders of limitation.

[0061] In some specific embodiments, the first connecting seat 10 and the second connecting seat 20 are both made of steel components, and the first connecting plate 11 and the second connecting plate 21 are also provided with embedded parts to better connect with concrete structures such as walls.

[0062] In some specific embodiments, a limiting convex strip is provided on the first connecting plate 11, and a sliding groove corresponding to the limiting convex strip is provided on the box-shaped enclosure 22. Through the cooperation of the limiting convex strip and the sliding groove, the sliding direction between the first connecting seat 10 and the second connecting seat 20 can be limited to avoid sliding in other directions, which may damage the components therein and affect the use.

[0063] Furthermore, the additional multi-order stiffness composite viscous damping wall also includes a stroke adjustment component, which is arranged on the second connecting seat 20 and located at the start-slip limit groove 23, for adjusting the length of the start-slip limit groove 23 in the first direction, thereby adjusting the sliding stroke between the second damping component 40 and the start-slip limit groove 23.

[0064] Specifically, Figure 8As shown, the stroke adjustment assembly includes a top plate 51 and a buffer cylinder 52. The buffer cylinder 52 is fixedly connected to the box-type enclosure 22, and the top plate 51 is connected to the cylinder column of the buffer cylinder 52. The top plate 51 is used to abut against the lifting slider 45 to limit the sliding stroke of the lifting slider 45, and when the lifting slider 45 contacts the top plate 51, a certain buffer can be provided by the buffer cylinder 52 to avoid damage to the connection caused by direct contact. The air pipe of the buffer cylinder 52 extends to the outside of the box-type enclosure 22 and is connected to the air pressure controller, so that the operator can control the operation of the buffer cylinder 52 through the air pressure controller to control the position of the top plate 51, thereby controlling the sliding stroke of the lifting slider 45.

[0065] A pressure relief valve 53 is provided on the air pipe on the buffer cylinder 52 for pushing the top plate 51 to move away from the starting slider 45. A pneumatic switch 54 is provided on the pressure relief valve 53. The pneumatic switch 54 is connected to the airbag 61 in the above embodiment through a vent pipe 55, so that when the top plate 51 squeezes the airbag 61, the gas in the airbag 61 triggers the pneumatic switch 54 through the vent pipe 55, thereby opening the pressure relief valve 53, so that the buffer cylinder 52 and the top plate 51 have a tendency to move toward the starting slider 45, and then the sliding stroke of the starting slider 45 has a tendency to decrease, and the buffer cylinder 52 and the top plate 51 also play a certain buffering and energy dissipation role, reducing the possibility of the top plate 51 squeezing the airbag 61 and squeezing the airbag 61 again after resetting, which is more conducive to ensuring safety in use.

[0066] In some embodiments, the additional multi-order stiffness composite viscous damping wall provided in the present invention can also be used as an overload protection device, wherein the second damping component 40 can be used as an overload protection device, and the first damping component 30 can be used as a damping device.

[0067] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite viscous damping wall with additional multi-order stiffness, characterized in that: include: A first connecting seat (10); A second connecting seat (20) having the freedom to slide along a first direction with the first connecting seat (10) and being provided with a sliding limit groove (23); A first damping assembly (30) having two connection ends, the two connection ends being capable of relative movement along a first direction and generating damping, and the two connection ends being fixedly connected to the first connection seat (10) and the second connection seat (20), respectively; The second damping component (40) has two connection ends, the two connection ends can move relative to each other in a first direction and generate damping, one of the connection ends is fixedly connected to the first connection seat (10), and the other connection end is slidably matched with the start-slip limit groove (23) of the second connection seat (20) in the first direction, and the sliding stroke is greater than or equal to zero; The first connecting seat (10) comprises a first connecting plate (11) and a limiting tenon assembly, wherein the limiting tenon assembly is fixedly connected to the first connecting plate (11); the second connecting seat (20) comprises a second connecting plate (21) and a box-shaped enclosure (22), wherein the box-shaped enclosure (22) is fixedly connected to the second connecting plate (21); the first damping assembly (30), the second damping assembly (40) and the limiting tenon assembly are all located inside the box-shaped enclosure (22); and the two connecting ends of the first damping assembly (30) are respectively connected to the limiting tenon assembly and the box-shaped enclosure (22), and the two connecting ends of the second damping assembly (40) are also respectively connected to the limiting tenon assembly and the box-shaped enclosure (22), and the sliding limiting groove (23) is provided on the box-shaped enclosure (22); The position limiting tenon assembly comprises a base plate (12), the base plate (12) being fixedly connected to the first connecting plate (11), the base plate (12) having a slide groove (13) arranged along a first direction; the second damping assembly (40) comprises: A sliding shaft (41) passes through the sliding groove (13) and is slidably engaged with the sliding groove (13); A friction plate (42) is provided on the base plate (12) and is located at the outer periphery of the slide groove (13); A friction plate (43) is sleeved on the sliding shaft (41) and cooperates with the friction plate (42) to form a sliding friction pair; an elastic member (44) disposed on a side of the friction plate (43) facing away from the friction plate (42) to apply pressure to the friction plate (43); A starting slide block (45) is sleeved on the sliding shaft (41) and is located on a side of the elastic member (44) facing away from the friction plate (43), and an outer end of the starting slide block (45) is disposed in the starting slide limit groove (23); Two fasteners (46) are respectively located at two ends of the sliding shaft (41) to press the base plate (12), the friction plate (42), the friction sheet (43), the elastic member (44) and the sliding block (45); The friction plate (42) is one connection end of the second damping component (40), and the sliding block (45) is another connection end of the second damping component (40); The position limiting latch assembly further comprises two latch plates (14), the two latch plates (14) being respectively located on two sides of the base plate (12) and fixedly connected to the base plate (12); the first damping assembly (30) comprises: A piston rod (31) is fixedly connected to the box-shaped enclosure (22) and has a piston in the middle; A sleeve (32) is slidably sleeved on the middle part of the piston rod (31) and is located between the two clamping plates (14); compressed gas or fluid is provided inside the sleeve (32).

2. The additional multi-order stiffness composite viscous damping wall according to claim 1, characterized in that: The second damping component (40) is a friction damping component, and the first damping component (30) is a viscous damping component; a plurality of the first damping components (30) are arranged in parallel.

3. The additional multi-order stiffness composite viscous damping wall according to claim 1, characterized in that: The friction plate (42), the friction sheet (43), the elastic member (44) and the sliding block (45) are each two and are located on two sides of the base plate (12) respectively; the elastic member (44) is a spring or an elastic rubber ring sleeved on the sliding shaft (41); the fastener (46) is a nut, a retaining ring or a pin; and the side of the friction plate (42) facing the friction sheet (43) is a mirror structure.

4. The additional multi-order stiffness composite viscous damping wall according to claim 1, characterized in that: The two clamping plates (14) are both perpendicular to the base plate (12) and are both fixedly connected to the first connecting plate (11); the two ends of the piston rod (31) are respectively connected to the box-shaped enclosure plate (22) by means of bolt adjustment nut fastening, clamping, pinning or welding.

5. The additional multi-order stiffness composite viscous damping wall according to claim 1, characterized in that: There are a plurality of second damping components (40), and the second connecting seat (20) is provided with a plurality of start-slip limit slots (23) corresponding one-to-one to the second damping components (40), and the sliding strokes between different second damping components (40) and the corresponding start-slip limit slots (23) are different.

6. The additional multi-order stiffness composite viscous damping wall according to claim 1, characterized in that: The first connection seat (10) and the second connection seat (20) are both steel components, and the first connection plate (11) and the second connection plate (21) are also provided with embedded parts; the first connection plate (11) is provided with a limiting convex strip, and the box-shaped enclosure (22) is provided with a sliding groove corresponding to the limiting convex strip.

7. The additional multi-order stiffness composite viscous damping wall according to claim 1, characterized in that: The additional multi-order stiffness composite viscous damping wall also includes a stroke adjustment component, which is arranged on the second connecting seat (20) and located at the start-slip limit groove (23) to adjust the length of the start-slip limit groove (23) in the first direction, thereby adjusting the sliding stroke between the second damping component (40) and the start-slip limit groove (23).

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