Anti-seismic buffering support for steel structure

Abstract

The invention belongs to the technical field of anti-seismic buffering supports, and particularly relates to an anti-seismic buffering support for a steel structure, the anti-seismic buffering support comprises a supporting mechanism, a vibration sensing mechanism, a self-adaptive damping mechanism and a self-adaptive buffering mechanism, and the supporting mechanism comprises an upper supporting frame and a lower supporting frame; when the supporting mechanism vibrates, the vibration sensing mechanism automatically starts to work; when the vibration sensing mechanism works, the self-adaptive damping mechanism is automatically driven to start to work, and energy generated by vibration is absorbed and dissipated; when the self-adaptive damping mechanism works, the self-adaptive buffering mechanism is automatically driven to work, the buffering coefficient of relative movement between the upper supporting frame and the lower supporting frame is adjusted in a self-adaptive mode, and the problem that in the face of vibration, vibration resistance needs to be conducted by depending on external energy is solved. And energy generated by vibration cannot be actively absorbed and dissipated according to self structural characteristics, so that relatively large potential safety hazards are caused.

Description

Technical Field

[0001] The present invention relates to the technical field of seismic buffer brackets, and particularly to a seismic buffer bracket for steel structures. Background Art

[0002] A steel structure is a structure composed of steel materials and is one of the main building structure types. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of sections and steel plates, and rust removal and anti-rust processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing are adopted. Welds, bolts or rivets are usually used to connect between the components or parts. Because of its light self-weight and simple construction, it is widely used in large factories, stadiums, super high-rise buildings and other fields, and steel structures need to be fixed by brackets when in use.

[0003] When a steel structure bracket faces vibrations, it mainly relies on the structural endurance of the steel structure itself for seismic support. However, when the vibration is relatively strong, the entire steel structure is prone to fracture. At present, in order to improve the seismic buffer performance of the steel structure, when vibrations occur, active seismic buffer intervention is mainly carried out on the steel structure through a hydraulic device connected to a control system. However, this method is relatively dependent on external energy, and signal loss and power failure are likely to occur when vibrations occur, resulting in the failure of the active control hydraulic system for seismic buffering. Therefore, the existing methods for seismic buffering of steel structures cannot absorb and dissipate the energy generated during vibrations according to the characteristics of the mechanical structure itself, and there are relatively large potential safety hazards. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] Therefore, the purpose of the present invention is to provide a seismic buffer bracket for steel structures, which replaces the traditional way of seismic buffering when a steel structure faces vibrations, and avoids the problem of relying on external energy for seismic resistance when facing vibrations, and being unable to actively absorb and dissipate the energy generated by vibrations according to its own structural characteristics, resulting in relatively large potential safety hazards.

[0006] To solve the above technical problems, according to one aspect of the present invention, the following technical solutions are provided: A seismic buffer bracket for steel structures, which includes: A support mechanism, which includes an upper support frame and a lower support frame; A vibration sensing mechanism is installed on the support mechanism. When the support mechanism vibrates, the vibration sensing mechanism automatically starts to work. An adaptive damping mechanism is installed on the support mechanism. When the vibration sensing mechanism works, it automatically drives the adaptive damping mechanism to start working and absorbs and dissipates the energy generated by the vibration. An adaptive buffer mechanism is installed on the support mechanism and buffers the relative movement between the upper support frame and the lower support frame when it works. When the adaptive damping mechanism works, it automatically drives the adaptive buffer mechanism to work and adaptively adjusts the buffer coefficient of the relative movement between the upper support frame and the lower support frame.

[0007] As a preferred solution of the seismic buffer support for steel structures according to the present invention, a first mounting plate is provided at the bottom of the upper support frame. The vibration sensing mechanism includes an eccentric cam movably installed on the side wall of the first mounting plate.

[0008] As a preferred solution of the seismic buffer support for steel structures according to the present invention, a second mounting plate is provided at the bottom of the upper support frame. The adaptive damping mechanism includes a first friction block located on one side of the second mounting plate, a second friction block installed at the bottom of the upper support frame and having its side wall sliding relative to the side wall of the first friction block, and a first transmission component that drives the first friction block to move reciprocally when the eccentric cam rotates.

[0009] As a preferred solution of the seismic buffer support for steel structures according to the present invention, a plurality of first sawteeth are provided at the bottom of the eccentric cam. The first transmission component includes a reciprocating lead screw installed on the side wall of the second mounting plate and threadedly connected to the first friction block, a limiting slide rod installed on the side wall of the second mounting plate and slidably connected to the first friction block, and a ratchet wheel disk movably installed on the side wall of the second mounting plate and having its side wall connected to the reciprocating lead screw through a rotating shaft. A plurality of elastic pawls meshing with the first sawteeth are uniformly arranged along the circumferential direction on the inner wall of the ratchet wheel disk.

[0010] As a preferred solution of the seismic buffer support for steel structures according to the present invention, support columns are provided on both sides at the bottom of the upper support frame. Sleeves with a first elastic member inside are provided on both sides at the top of the lower support frame and are slidably connected to the bottoms of the support columns.

[0011] As a preferred embodiment of the seismic buffer bracket for steel structures according to the present invention, the adaptive buffer mechanism includes a connecting block installed on the side wall of the support column and having first hinge seats on both sides, a connecting plate located on both sides of the support column and having second hinge seats on one side adjacent to the support column, a second elastic member with one end hinged to the first hinge seat and the other end hinged to the second hinge seat, and a second transmission assembly with one end drivingly connected to the connecting plate and the other end drivingly connected to the first friction block.

[0012] As a preferred embodiment of the seismic buffer bracket for steel structures according to the present invention, the top of the lower support frame has a first limit chute adapted to the bottom of the connecting plate; The side wall of the first friction block has a plurality of second sawteeth; The second transmission assembly includes a first transmission gear installed at the bottom of the upper support frame and meshing with the second sawteeth, a first bevel gear set installed at the top of the lower support frame and having one end connected to the side wall of the first transmission gear through a rotating shaft, a second bevel gear set installed at the top of the lower support frame and having one end connected to the other end of the first bevel gear set, and two first threaded rods with one end connected to the other end of the second bevel gear set and opposite thread directions at both ends. Among them, the two connecting plates on the adjacent sides of the two support columns are threadedly sleeved on the corresponding one of the first threaded rods.

[0013] As a preferred embodiment of the seismic buffer bracket for steel structures according to the present invention, the first elastic member and the second elastic member are variable stiffness springs.

[0014] As a preferred embodiment of the seismic buffer bracket for steel structures according to the present invention, it further includes a damping adjustment mechanism. When the eccentric cam swings to a certain height, it automatically drives the damping adjustment mechanism to start working and adjusts the frictional resistance between the first friction block and the second friction block.

[0015] As a preferred embodiment of the seismic buffer bracket for steel structures according to the present invention, the bottom of the upper support frame is provided with a second limit chute. The top of the second friction block extends into the second limit chute and its side wall has a plurality of third elastic members with the other ends connected to the inner wall of the second limit chute; The bottom of the upper support frame is provided with a third mounting plate; The side wall of the eccentric cam has third sawteeth; The damping adjustment mechanism includes a second threaded rod installed on the side wall of the third mounting plate, with one end threadedly connected to the side wall of the second friction block and the other end having a first pulley, a second transmission gear installed on the side wall of the first mounting plate and corresponding to the third saw teeth, and a third bevel gear set with one end connected to the side wall of the second transmission gear through a rotating shaft and the other end connected to a second pulley through a rotating shaft. The second pulley is connected to the first pulley by a belt.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows. For this seismic buffer bracket for steel structures, when vibration occurs, it is sensed by the vibration sensing mechanism and then starts to work. Then, it drives the adaptive damping mechanism to start working and automatically absorbs and dissipates the energy generated by the vibration. When the adaptive damping mechanism is working, it drives the adaptive buffer mechanism to work. While buffering the relative movement between the upper support frame and the lower support frame, it adaptively adjusts the buffer coefficient, thereby improving the buffer performance. Furthermore, it automatically performs seismic buffering through its own characteristics, replacing the traditional way of seismic buffering for steel structures when facing vibration, and avoiding the problem of relying on external energy for seismic resistance when facing vibration and being unable to actively absorb and dissipate the energy generated by vibration according to its own structural characteristics, which may lead to relatively large potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them: Figure 1 It is a schematic structural view of a perspective of a seismic buffer bracket for a steel structure of the present invention; Figure 2 It is a schematic structural view of another perspective of a seismic buffer bracket for a steel structure of the present invention; Figure 3 It is an exploded view of the structure of a seismic buffer bracket for a steel structure of the present invention; Figure 4 It is a schematic structural view of the upper support frame of a seismic buffer bracket for a steel structure of the present invention; Figure 5 It is a schematic structural view of the vibration sensing mechanism of a seismic buffer bracket for a steel structure of the present invention; Figure 6 It is a schematic structural view of the adaptive damping mechanism of a seismic buffer bracket for a steel structure of the present invention; Figure 7 It is a schematic structural view of the damping adjustment mechanism of a seismic buffer bracket for a steel structure of the present invention.

[0018] In the figure: 100, support mechanism; 110, upper support frame; 110a, support column; 110b, first mounting plate; 110c, second mounting plate; 110d, second limiting chute; 110e, third mounting plate; 120, lower support frame; 120a, sleeve; 120b, first limiting chute; 200, vibration sensing mechanism; 210, eccentric cam; 210a, first serration; 210b, third serration; 300, adaptive damping mechanism; 310, first friction block; 310a, second serration; 320, second friction block; 320a, third elastic member; 330, first transmission assembly; 330a, reciprocating lead screw; 330b, limiting slide bar; 330c, ratchet disc; 400, adaptive buffer mechanism; 410, connecting block; 410a, first hinge seat; 420, connecting plate; 420a, second hinge seat; 430, second elastic member; 440, second transmission assembly; 440a, first transmission gear; 440b, first bevel gear set; 440c, second bevel gear set; 440d, first threaded rod; 500, damping adjustment mechanism; 510, second threaded rod; 510a, first pulley; 520, second transmission gear; 530, third bevel gear set; 530a, second pulley. Detailed implementation mode

[0019] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe in detail the specific implementation modes of the present invention with reference to the accompanying drawings.

[0020] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of description, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention here. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe in detail the embodiments of the present invention with reference to the accompanying drawings.

[0022] The present invention provides an anti-seismic buffer bracket for steel structures, which replaces the traditional anti-seismic buffer method for steel structures in the face of vibration, avoiding the need to rely on external energy for anti-seismic in the face of vibration, and being unable to actively absorb and dissipate the energy generated by vibration according to its own structural characteristics, thus resulting in problems with relatively large potential safety hazards.

[0023] Figures 1-7 Shown is a structural schematic diagram of an anti-seismic buffer bracket for a steel structure according to the present invention. Please refer to Figures 1-7 A detailed introduction will be made to this anti-seismic buffer bracket for a steel structure. Embodiment 1

[0024] Reference Figures 1-6 , the present invention discloses an earthquake-resistant buffer bracket for steel structures, and its main part includes a support mechanism 100, a vibration sensing mechanism 200, an adaptive damping mechanism 300, and an adaptive buffer mechanism 400.

[0025] Reference Figures 1-3 , the support mechanism 100 is used to support the steel structure. The support mechanism 100 includes an upper support frame 110 and a lower support frame 120, and is used to carry the steel structure through the cooperation of the upper support frame 110 and the lower support frame 120; Reference Figures 1-5 , the vibration sensing mechanism 200 is used to sense the vibration inside the steel structure and the support mechanism 100 when vibration occurs and then trigger the adaptive damping mechanism 300 to work. The vibration sensing mechanism 200 is installed on the support mechanism 100. Among them, when the support mechanism 100 vibrates, the vibration sensing mechanism 200 automatically starts to work, so that when vibration occurs, the adaptive damping mechanism 300 is triggered to work through the vibration sensing mechanism 200; Reference Figures 1-6 , the adaptive damping mechanism 300 is used to absorb and dissipate the energy generated when the support mechanism 100 vibrates during operation. The adaptive damping mechanism 300 is installed on the support mechanism 100. Among them, when the vibration sensing mechanism 200 works, it automatically drives the adaptive damping mechanism 300 to start working, absorbs and dissipates the energy generated by the vibration, so that when the vibration sensing mechanism 200 senses the vibration and starts to work, it drives the adaptive damping mechanism 300 to start working, and automatically absorbs and dissipates the energy generated during vibration; Reference Figures 1-6 , the adaptive buffer mechanism 400 is used to buffer between the upper support frame 110 and the lower support frame 120 when vibration occurs, and at the same time adaptively adjust the buffer coefficient. It is installed on the support mechanism 100 and buffers the relative movement between the upper support frame 110 and the lower support frame 120 during operation. Among them, when the adaptive damping mechanism 300 works, it automatically drives the adaptive buffer mechanism 400 to work, and adaptively adjusts the buffer coefficient of the relative movement between the upper support frame 110 and the lower support frame 120. Therefore, when vibration occurs, the adaptive buffer mechanism 400 buffers the upper support frame 110 and the lower support frame 120, and as the adaptive damping mechanism 300 works, it automatically drives the adaptive buffer mechanism 400 to adjust its own buffer coefficient, so that when vibration occurs, the buffering performance of the adaptive buffer mechanism 400 for the support mechanism 100 and the steel structure is improved.

[0026] In this embodiment, the specific usage process is as follows: Fix the upper support frame 110 to the bottom of the steel structure, and install the lower support frame 120 on the foundation to fixedly support the bottom of the steel structure. When vibration occurs, vibration occurs inside the support mechanism 100. At this time, the vibration sensing mechanism 200 starts to work, driving the adaptive damping mechanism 300 to work, automatically absorbing and dissipating the energy generated during vibration. At the same time, the adaptive buffer mechanism 400 buffers the upper support frame 110 and the lower support frame 120. When the adaptive damping mechanism 300 works, it drives the adaptive buffer to automatically adjust its own buffer coefficient, thereby improving the buffering performance of the adaptive buffer mechanism 400 itself for the support mechanism 100 and the steel structure when the vibration is relatively intense. Embodiment 2

[0027] Based on Embodiment 1, referring to Figures 1-4 , a first mounting plate 110b is provided at the bottom of the upper support frame 110 for facilitating the installation of the eccentric cam 210; Referring to Figures 1-5 , the vibration sensing mechanism 200 includes an eccentric cam 210 movably installed on the side wall of the first mounting plate 110b, which is used to automatically swing the eccentric cam 210 when vibration occurs inside the support mechanism 100, thereby providing a power to trigger the operation of the adaptive damping mechanism 300. Embodiment 3

[0028] Based on Embodiment 2, referring to Figures 1-6 , a second mounting plate 110c is provided at the bottom of the upper support frame 110 for facilitating the installation of the first friction block 310 and the movable installation of the ratchet disc 330c; Referring to Figures 1-6 , the adaptive damping mechanism 300 includes a first friction block 310 located on one side of the second mounting plate 110c, a second friction block 320 installed at the bottom of the upper support frame 110 and whose side wall slides relative to the side wall of the first friction block 310, and a first transmission component 330 that drives the first friction block 310 to move reciprocally when the eccentric cam 210 rotates. The first friction block 310 is used to cooperate with the second friction block 320. When the first friction block 310 moves, it has a relative displacement with the second friction block 320, thereby absorbing and dissipating the energy generated during vibration through the friction between the two. The second friction block 320 is used to cooperate with the first friction block 310, and the first transmission component 330 is used to drive a relative displacement between the first friction block 310 and the second friction block 320 when the eccentric cam 210 rotates.

[0029] In this embodiment, a plurality of first sawteeth 210a are provided at the bottom of the eccentric cam 210 for driving the ratchet disc 330c to rotate intermittently when the eccentric cam rotates; Referring toFigure 6 , the first transmission assembly 330 includes a reciprocating lead screw 330a installed on the side wall of the second mounting plate 110c and threadedly connected to the first friction block 310, a limiting slide bar 330b installed on the side wall of the second mounting plate 110c and slidably connected to the first friction block 310, and a ratchet disc 330c movably installed on the side wall of the second mounting plate 110c and having its side wall connected to the reciprocating lead screw 330a through a rotating shaft. A plurality of elastic pawls meshing with the first saw teeth 210a are uniformly arranged along the circumferential direction on the inner wall of the ratchet disc 330c. The reciprocating lead screw 330a is used to drive the first friction block 310 to reciprocate along the reciprocating lead screw 330a and the limiting slide bar 330b under the limitation of the limiting slide bar 330b when rotating. The limiting slide bar 330b is used to limit the first friction block 310, so as to drive the first friction block 310 to move linearly when the reciprocating lead screw 330a rotates. The ratchet disc 330c is used to drive the reciprocating lead screw 330a to rotate when the eccentric cam 210 rotates to drive its intermittent rotation.

[0030] In this embodiment, the specific working process is as follows: when the support mechanism 100 vibrates, at this time, the eccentric cam 210 swings freely, so as to drive the ratchet disc 330c to rotate intermittently under the action of the first saw teeth 210a. When the ratchet disc 330c rotates, it drives the reciprocating lead screw 330a to rotate. When the reciprocating lead screw 330a rotates, it drives the first friction block 310 to reciprocate along the reciprocating lead screw 330a and the limiting slide bar 330b under the limiting action of the limiting slide bar 330b. Thus, repeated friction occurs between the first friction block 310 and the second friction block 320, and the energy generated by the vibration is automatically absorbed and dissipated through the friction between the two. Embodiment 4

[0031] On the basis of Embodiment 3, refer to Figures 1-6 , support columns 110a are provided on both sides of the bottom of the upper support frame 110 for supporting the upper support frame 110; Refer to Figures 1-6 , sleeves 120a with a first elastic member inside are provided on both sides of the top of the lower support frame 120 and are slidably connected to the bottoms of the support columns 110a. The sleeves 120a are used for slidably connecting the support columns 110a, and the first elastic member is used to buffer the upper support frame 110 through its own performance when vibration occurs.

[0032] In this embodiment, refer to Figure 2, the adaptive buffer mechanism 400 includes a connection block 410 mounted on the side wall of the support column 110a and having first hinge seats 410a on both sides, a connection plate 420 located on both sides of the support column 110a and having second hinge seats 420a on one side adjacent to the support column 110a, a second elastic member 430 with one end hinged to the first hinge seat 410a and the other end hinged to the second hinge seat 420a, and a second transmission assembly 440 with one end drivingly connected to the connection plate 420 and the other end drivingly connected to the first friction block 310. The connection block 410 is used to facilitate the connection between the support column 110a and the second elastic member 430. The first hinge seat 410a is used to facilitate the hinging of the second elastic member 430. The connection plate 420 is used to facilitate the connection between the other end of the second elastic member 430 and the lower support frame 120. The second hinge seat 420a is used to facilitate the hinging of the other end of the second elastic member 430. After the two ends of the second elastic member 430 are respectively hinged to the first hinge seat 410a and the second hinge seat 420a, the second elastic member 430 provides a lateral tensile buffer to both sides of the support column 110a, thereby improving the buffer performance between the upper support frame 110 and the lower support frame 120. The second transmission assembly 440 is used to automatically pull the second elastic member 430 when a relative displacement occurs between the first friction block 310 and the second friction block 320, thereby increasing the lateral tensile coefficient of the second elastic member 430 on both sides of the support column 110a, and further adjusting the buffer coefficient between the upper support frame 110 and the lower support frame 120.

[0033] In this embodiment, referring to Figures 1-3 , the top of the lower support frame 120 has a first limit sliding groove 120b adapted to the bottom of the connection plate 420 for limiting the connection plate 420; Referring to Figures 1-2 , the side wall of the first friction block 310 has a plurality of second saw teeth 310a for driving the first transmission gear 440a to rotate when the first friction block 310 moves; Referring to Figures 1-2, the second transmission assembly 440 includes a first transmission gear 440a mounted on the bottom of the upper support frame 110 and meshing with the second sawtooth 310a, a first bevel gear set 440b mounted on the top of the lower support frame 120 and having one end connected to the side wall of the first transmission gear 440a through a rotating shaft, a second bevel gear set 440c mounted on the top of the lower support frame 120 and having one end connected to the other end of the first bevel gear set 440b, and two first threaded rods 440d having one end connected to the other end of the second bevel gear set 440c and having opposite thread patterns at both ends. Among them, two connecting plates 420 on two adjacent sides of the two support columns 110a are threadedly sleeved on a corresponding first threaded rod 440d. The first transmission gear 440a is used to drive the first bevel gear set 440b to rotate when rotating, the first bevel gear set 440b is used to drive the second bevel gear set 440c to rotate when rotating, the second bevel gear set 440c is used to drive the two first threaded rods 440d to rotate when rotating, and the first threaded rod 440d is used to drive the connecting plates 420 on both sides of the support column 110a to approach each other along the first limit sliding groove, thereby pulling the second elastic member 430 to make it tighter, so as to improve its buffering coefficient.

[0034] In this embodiment, the first elastic member and the second elastic member 430 are variable stiffness springs. The variable stiffness springs have adjustability and flexibility, and can adjust the stiffness and softness at any time according to needs, so as to realize the control and adjustment of the mechanical system.

[0035] In this embodiment, the specific working process is as follows: When the support mechanism 100 vibrates, at this time, the support column 110a slides up and down in the sleeve 120a, and a longitudinal buffering force is provided to the support column 110a through the first elastic member. At the same time, a lateral buffering force is provided to the support column 110a through the second elastic member 430. As the first friction block 310 moves, the first transmission gear 440a is driven to rotate through the second sawtooth 310a. When the first transmission gear 440a rotates, it drives the first bevel gear set 440b to rotate. When the first bevel gear set 440b rotates, it drives the second bevel gear set 440c to rotate. When the second bevel gear set 440c rotates, it drives the two first threaded rods 440d to rotate. When the first threaded rod 440d rotates, it drives the connecting plates 420 on both sides of the support column 110a to approach each other, thereby tightening the second elastic member 430, and further improving its buffering coefficient, so as to improve the buffering performance during vibration. Embodiment 5

[0036] On the basis of Embodiment 4, refer to Figures 1-7, further comprising a damping adjustment mechanism 500, which is used to increase the frictional force between the first friction block 310 and the second friction block 320 when the vibration is relatively intense, so as to enhance the energy absorption and dissipation performance. Among them, when the eccentric cam 210 swings to a certain height, it automatically drives the damping adjustment mechanism 500 to start working, and adjusts the frictional resistance between the first friction block 310 and the second friction block 320. When the eccentric cam 210 swings to a certain height, it indicates that the vibration is relatively intense. At this time, the damping adjustment mechanism 500 automatically adjusts and increases the frictional force between the first friction block 310 and the second friction block 320, so as to enhance the energy absorption and dissipation performance of the adaptive damping mechanism 300.

[0037] In this embodiment, referring to Figures 4-7 , a second limit chute 110d is provided at the bottom of the upper support frame 110, which is used to facilitate the movement of the second friction block 320 towards the first friction block 310. The top of the second friction block 320 extends into the second limit chute 110d and the side wall has a plurality of third elastic members 320a with the other ends connected to the inner wall of the second limit chute 110d, which are used to fix the second friction block 320 in the second limit chute 110d by their own reaction force; Referring to Figures 4-7 , a third mounting plate 110e is provided at the bottom of the upper support frame 110, which is used to facilitate the installation of the second threaded rod 510; Referring to Figures 4-7 , the side wall of the eccentric cam 210 has a third sawtooth 210b, which is used to drive the second transmission gear 520 to rotate when the eccentric cam 210 swings to a certain height; Referring to Figure 7 , the damping adjustment mechanism 500 includes a second threaded rod 510 installed on the side wall of the third mounting plate 110e, with one end threadedly connected to the side wall of the second friction block 320 and the other end having a first pulley 510a, a second transmission gear 520 installed on the side wall of the first mounting plate 110b and corresponding to the third sawtooth 210b, and a third bevel gear set 530 with one end connected to the side wall of the second transmission gear 520 through a rotating shaft and the other end connected to a second pulley 530a through a rotating shaft. The second pulley 530a is connected to the first pulley 510a by a belt. The second threaded rod 510 is used to rotationally drive the second friction block 320 to move along the second limit chute 110d towards the first friction block 310. The first pulley 510a is used to drive the second threaded rod 510 to rotate when rotating. The second transmission gear 520 is used to drive the third bevel gear set 530 to rotate when rotating. The third bevel gear set 530 is used to drive the second pulley 530a to rotate when rotating. The second pulley 530a is used to drive the first pulley 510a to rotate when rotating.

[0038] In this embodiment, the specific working process is as follows: when the eccentric cam 210 swings to a certain height, the surface vibration is relatively intense at this time. At this time, under the action of the third sawtooth 210b, the second transmission gear 520 is driven to rotate. When the second transmission gear 520 rotates, it drives the third bevel gear set 530 to rotate. When the third bevel gear set 530 rotates, it drives the second pulley 530a to rotate. When the second pulley 530a rotates, it drives the first pulley 510a to rotate. After the first pulley 510a rotates, it drives the second threaded rod 510 to rotate. When the second threaded rod 510 rotates, it drives the second friction block 320 to move along the second limiting chute 110d towards the first friction block 310, so that the second friction block 320 fits more closely with the first friction block 310, thereby increasing the friction coefficient between the two, and further improving the energy absorption and dissipation performance when the two rub against each other.

[0039] Although the present invention has been described above with reference to the embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the disclosed embodiments of the present invention can be combined with each other in any way. The exhaustive description of these combinations is not given in this specification only for the sake of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A seismic buffer support for a steel structure, characterized in that: include: A support mechanism (100), comprising an upper support frame (110) and a lower support frame (120); a vibration sensing mechanism (200) mounted on the support mechanism (100), wherein when the support mechanism (100) vibrates, the vibration sensing mechanism (200) automatically starts to work; An adaptive damping mechanism (300) is mounted on the support mechanism (100), wherein when the vibration sensing mechanism (200) is in operation, the adaptive damping mechanism (300) is automatically driven to start working, thereby absorbing and dissipating energy generated by the vibration; An adaptive buffer mechanism (400) is mounted on the support mechanism (100) and, when in operation, buffers the relative movement between the upper support frame (110) and the lower support frame (120), wherein when the adaptive damping mechanism (300) is in operation, it automatically drives the adaptive buffer mechanism (400) to operate, and adaptively adjusts the buffer coefficient of the relative movement between the upper support frame (110) and the lower support frame (120).

2. The seismic buffer support for steel structure according to claim 1, characterized in that: A first mounting plate (110b) is provided at the bottom of the upper support frame (110); The vibration sensing mechanism (200) comprises an eccentric cam (210) movably mounted on the side wall of the first mounting plate (110b).

3. The seismic buffer support for steel structure according to claim 2, characterized in that: A second mounting plate (110c) is provided at the bottom of the upper support frame (110); The adaptive damping mechanism (300) comprises a first friction block (310) located on one side of the second mounting plate (110c), a second friction block (320) mounted on the bottom of the upper support frame (110) and having a side wall that slides relative to the side wall of the first friction block (310), and a first transmission assembly (330) that drives the first friction block (310) to reciprocate when the eccentric cam (210) rotates.

4. The seismic buffer support for steel structure according to claim 3, characterized in that: A plurality of first saw teeth (210a) are provided at the bottom of the eccentric cam (210); The first transmission assembly (330) comprises a reciprocating screw (330a) mounted on the side wall of the second mounting plate (110c) and threadedly connected to the first friction block (310), a limiting sliding rod (330b) mounted on the side wall of the second mounting plate (110c) and slidably connected to the first friction block (310), and a ratchet disc (330c) movably mounted on the side wall of the second mounting plate (110c) and connected to the reciprocating screw (330a) via a rotating shaft, wherein the inner wall of the ratchet disc (330c) is evenly provided with a plurality of elastic pawls that mesh with the first saw teeth (210a) along the circumferential direction.

5. The seismic buffer support for steel structure according to claim 4, characterized in that: Support columns (110a) are arranged on both sides of the bottom of the upper support frame (110); Sleeves (120a) are provided on both sides of the top of the lower support frame (120) and are slidably connected to the bottom of the support column (110a) and have a first elastic member inside.

6. The seismic buffer support for steel structure according to claim 5, characterized in that: The adaptive buffer mechanism (400) comprises a connecting block (410) mounted on the side wall of the support column and having first hinge seats (410a) on both sides, a connecting plate (420) located on both sides of the support column and adjacent to the support column (110a) and having a second hinge seat (420a), a second elastic member (430) having one end hinged to the first hinge seat (410a) and the other end hinged to the second hinge seat (420a), and a second transmission assembly (440) having one end transmission-connected to the connecting plate (420) and the other end transmission-connected to the first friction block (310).

7. The seismic buffer support for steel structure according to claim 6, characterized in that: The top of the lower support frame (120) is provided with a first limiting sliding groove (120b) adapted to the bottom of the connecting plate (420); The side wall of the first friction block (310) has a plurality of second saw teeth (310a); The second transmission assembly (440) comprises a first transmission gear (440a) mounted on the bottom of the upper support frame (110) and meshing with the second sawtooth (310a), a first bevel gear set (440b) mounted on the top of the lower support frame (120) and connected at one end to the side wall of the first transmission gear (440a) via a rotating shaft, a second bevel gear set (440c) mounted on the top of the lower support frame (120) and connected at one end to the other end of the first bevel gear set (440b), and two first threaded rods (440d) one end of which is connected to the other end of the second bevel gear set (440c) and the textures of the two ends are opposite, wherein the two connecting plates (420) on the adjacent sides of the two support columns (110a) are threadedly sleeved on a corresponding one of the first threaded rods (440d).

8. The seismic buffer support for steel structure according to claim 6, characterized in that: The first elastic member and the second elastic member (430) are variable stiffness springs.

9. The seismic buffer support for steel structure according to claim 7, characterized in that: It also includes a damping adjustment mechanism (500), wherein when the eccentric cam (210) swings to a certain height, it automatically drives the damping adjustment mechanism (500) to start working, thereby adjusting the friction resistance between the first friction block (310) and the second friction block (320).

10. The seismic buffer support for steel structure according to claim 9, characterized in that: A second limiting sliding groove (110d) is provided at the bottom of the upper support frame (110), the top of the second friction block (320) extends into the second limiting sliding groove (110d) and the side wall has a plurality of third elastic members (320a) whose other ends are connected to the inner wall of the second limiting sliding groove (110d); A third mounting plate (110e) is provided at the bottom of the upper support frame (110); The side wall of the eccentric cam (210) has third saw teeth (210b); The damping adjustment mechanism (500) comprises a second threaded rod (510) mounted on the side wall of the third mounting plate (110e) and having one end threadedly connected to the side wall of the second friction block (320) and having a first pulley (510a) at the other end, a second transmission gear (520) mounted on the side wall of the first mounting plate (110b) and corresponding to the third sawtooth (210b), and a third bevel gear set (530) having one end connected to the side wall of the second transmission gear (520) via a rotating shaft and the other end connected to a second pulley (530a) via a rotating shaft, wherein the second pulley (530a) is connected to the first pulley (510a) via a belt.

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