An anti-seismic buffer bracket for steel structures

Abstract

The present invention belongs to the technical field of seismic buffer brackets, and specifically relates to a seismic buffer bracket for steel structures, which includes a support mechanism, a vibration sensing mechanism, an adaptive damping mechanism, and an adaptive buffer mechanism. The support mechanism includes an upper support frame and a lower support frame; when the support mechanism vibrates, the vibration sensing mechanism automatically starts to work; when the vibration sensing mechanism works, it automatically drives the adaptive damping mechanism to start working to absorb and dissipate the energy generated by the vibration; 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, solving the problem that seismic resistance relies on external energy when facing vibrations and cannot actively absorb and dissipate the energy generated by vibrations according to its own structural characteristics, resulting in relatively large potential safety hazards.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-seismic buffer brackets, and particularly to an anti-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 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 overall steel structure is prone to fracture. At present, in order to improve the anti-seismic buffer performance of the steel structure, when vibrations occur, active anti-seismic buffer intervention is mainly carried out on the steel structure by connecting a hydraulic device with a control system. However, this method is relatively dependent on external energy, and signal loss and power failure are more likely to occur when vibrations occur, resulting in the failure of the active control hydraulic system for anti-seismic buffering. Therefore, the existing methods for anti-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, 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 an anti-seismic buffer bracket for steel structures, which replaces the traditional method of anti-seismic buffering when a steel structure faces vibrations, and avoids the problem of relying on external energy for anti-seismic during 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:

[0007] An anti-seismic buffer bracket for steel structures, which comprises:

[0008] A support mechanism, which comprises an upper support frame and a lower support frame;

[0009] A vibration sensing mechanism, which is installed on the support mechanism. When the support mechanism vibrates, the vibration sensing mechanism automatically starts to work;

[0010] An adaptive damping mechanism, which is installed on the support mechanism. When the vibration sensing mechanism works, it automatically drives the adaptive damping mechanism to start working, absorbing and dissipating the energy generated by the vibration;

[0011] An adaptive buffer mechanism, which is installed on the support mechanism and buffers the relative movement between the upper support frame and the lower support frame when working. 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.

[0012] As a preferred solution of an earthquake-resistant buffer bracket for steel structures according to the present invention, a first mounting plate is provided at the bottom of the upper support frame;

[0013] The vibration sensing mechanism includes an eccentric cam movably installed on the side wall of the first mounting plate.

[0014] As a preferred solution of an earthquake-resistant buffer bracket for steel structures according to the present invention, a second mounting plate is provided at the bottom of the upper support frame;

[0015] 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.

[0016] As a preferred solution of an earthquake-resistant buffer bracket for steel structures according to the present invention, a plurality of first sawteeth are provided at the bottom of the eccentric cam;

[0017] 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 disc 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 disc.

[0018] As a preferred solution of an earthquake-resistant buffer bracket for steel structures according to the present invention, support columns are provided on both sides at the bottom of the upper support frame;

[0019] On both sides of the top of the lower support frame, there are sleeves that are slidably connected to the bottom of the support column and have a first elastic member inside.

[0020] As a preferred solution of an anti-seismic buffer bracket for steel structures according to the present invention, wherein 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 a second hinge seat 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.

[0021] As a preferred solution of an anti-seismic buffer bracket for steel structures according to the present invention, wherein the top of the lower support frame has a first limit sliding groove adapted to the bottom of the connecting plate;

[0022] The side wall of the first friction block has a plurality of second sawteeth;

[0023] 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 opposite thread directions at both ends and having one end connected to the other end of the second bevel gear set, wherein 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.

[0024] As a preferred solution of an anti-seismic buffer bracket for steel structures according to the present invention, wherein the first elastic member and the second elastic member are variable stiffness springs.

[0025] As a preferred solution of an anti-seismic buffer bracket for steel structures according to the present invention, wherein it further includes a damping adjustment mechanism, wherein 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.

[0026] As a preferred solution of an anti-seismic buffer bracket for steel structures according to the present invention, wherein the bottom of the upper support frame is provided with a second limit sliding groove, the top of the second friction block extends into the second limit sliding groove and its side wall has a plurality of third elastic members with the other ends connected to the inner wall of the second limit sliding groove;

[0027] The bottom of the upper support frame is provided with a third mounting plate;

[0028] The side wall of the eccentric cam has third saw teeth;

[0029] The damping adjustment mechanism includes a second threaded rod mounted 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 mounted 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.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows. For this seismic buffer bracket for steel structures, when vibrations occur, the vibration sensing mechanism senses the vibrations and starts to work, and then drives the adaptive damping mechanism to start working to automatically absorb and dissipate the energy generated by the vibrations. 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 buffering coefficient, thereby improving the buffering performance. Furthermore, it automatically performs seismic buffering through its own characteristics, replacing the traditional way of seismic buffering for steel structures when facing vibrations, and avoiding 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. Description of the Drawings

[0031] 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 in conjunction with 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 also be obtained based on these drawings. Among them:

[0032] Figure 1 It is a structural schematic diagram of a perspective of a seismic buffer bracket for steel structures of the present invention;

[0033] Figure 2 It is a structural schematic diagram of another perspective of a seismic buffer bracket for steel structures of the present invention;

[0034] Figure 3 It is a structural exploded view of a seismic buffer bracket for steel structures of the present invention;

[0035] Figure 4 It is a structural schematic diagram of the upper support frame of a seismic buffer bracket for steel structures of the present invention;

[0036] Figure 5 It is a structural schematic diagram of the vibration sensing mechanism of a seismic buffer bracket for steel structures of the present invention;

[0037] Figure 6 This is a schematic structural diagram of the adaptive damping mechanism of an earthquake-resistant buffer bracket for a steel structure according to the present invention;

[0038] Figure 7 This is a schematic structural diagram of the damping adjustment mechanism of an earthquake-resistant buffer bracket for a steel structure according to the present invention.

[0039] 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 manners

[0040] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be made in conjunction with the accompanying drawings.

[0041] 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 sake of convenience of explanation, the sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0042] In order to make the purpose, technical solutions, and advantages of the present invention clearer, the following will further describe the embodiments of the present invention in detail in conjunction with the accompanying drawings.

[0043] The present invention provides an anti-seismic buffer support for steel structures, which replaces the traditional anti-seismic buffering method for steel structures facing vibrations, avoiding the need to rely on external energy for anti-seismic protection when facing vibrations, and being unable to actively absorb and dissipate the energy generated by vibrations according to its own structural characteristics, thus leading to problems with relatively large potential safety hazards.

[0044] Figures 1 - 7 Shown is a structural schematic diagram of an anti-seismic buffer support for a steel structure according to the present invention. Please refer to Figures 1 - 7 for a detailed introduction to this anti-seismic buffer support for steel structures. Embodiment 1

[0045] Reference Figures 1 - 6 , the present invention discloses an anti-seismic buffer support for a steel structure, the main part of which includes a support mechanism 100, a vibration sensing mechanism 200, an adaptive damping mechanism 300, and an adaptive buffering mechanism 400.

[0046] 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;

[0047] Reference Figures 1 - 5 , the vibration sensing mechanism 200 is used to sense the vibrations inside the steel structure and the support mechanism 100 when vibrations occur, 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. Thus, when vibrations occur, the adaptive damping mechanism 300 is triggered to work through the vibration sensing mechanism 200;

[0048] Reference Figures 1 - 6 , the adaptive damping mechanism 300 is used to absorb and dissipate the energy generated during the vibration of the support mechanism 100 when it works. 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, absorbing and dissipating the energy generated by the vibration. Thus, when the vibration sensing mechanism 200 senses the vibration and starts to work, it drives the adaptive damping mechanism 300 to start working, automatically absorbing and dissipating the energy generated during the vibration;

[0049] 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. Thus, 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. Therefore, when vibration occurs, the buffering performance of the adaptive buffer mechanism 400 for the support mechanism 100 and the steel structure is improved.

[0050] In this embodiment, the specific usage process is as follows: The upper support frame 110 is fixedly connected to the bottom of the steel structure, and the lower support frame 120 is installed 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

[0051] 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;

[0052] 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

[0053] 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;

[0054] 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 mounted on the bottom of the upper support frame 110 and having its side wall sliding 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 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 undergoes 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 assembly 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.

[0055] In this embodiment, a plurality of first saw teeth 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;

[0056] Reference Figure 6 , the first transmission assembly 330 includes a reciprocating screw rod 330a mounted on the side wall of the second mounting plate 110c and threadedly connected to the first friction block 310, a limit slide 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 having its side wall connected to the reciprocating screw rod 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 screw rod 330a is used to drive the first friction block 310 to reciprocally move along the reciprocating screw rod 330a and the limit slide rod 330b under the limitation of the limit slide rod 330b when rotating. The limit slide rod 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 screw rod 330a rotates. The ratchet disc 330c is used to drive the reciprocating screw rod 330a to rotate when the eccentric cam 210 rotates to drive its intermittent rotation.

[0057] 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, thereby driving 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 screw rod 330a to rotate. When the reciprocating screw rod 330a rotates, it drives the first friction block 310 to reciprocally move along the reciprocating screw rod 330a and the limit slide rod 330b under the limiting action of the limit slide rod 330b. Thus, the first friction block 310 and the second friction block 320 rub against each other repeatedly, and the energy generated by the vibration is automatically absorbed and dissipated through the friction between the two. Embodiment 4

[0058] Based on Embodiment 3, referring 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;

[0059] Referring 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.

[0060] In this embodiment, referring to Figure 2 , the adaptive buffer mechanism 400 includes a connecting block 410 installed on the side wall of the support column 110a and having first hinge seats 410a on both sides, a connecting 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 connecting plate 420 and the other end drivingly connected to the first friction block 310. The connecting 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 connecting 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 is used to provide a lateral tensile buffer on 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.

[0061] 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 connecting plate 420 for limiting the connecting plate 420;

[0062] Referring to Figures 1 - 2 , the side wall of the first friction block 310 has a plurality of second sawteeth 310a for driving the first transmission gear 440a to rotate when the first friction block 310 moves;

[0063] 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 meshed 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 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.

[0064] 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.

[0065] 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 transverse 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

[0066] 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, thereby enhancing 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, thereby enhancing the energy absorption and dissipation performance of the adaptive damping mechanism 300.

[0067] 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 through their own reaction force;

[0068] 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;

[0069] Referring to Figures 4 - 7 , the side wall of the eccentric cam 210 has third sawteeth 210b, which are used to drive the second transmission gear 520 to rotate when the eccentric cam 210 swings to a certain height;

[0070] 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 sawteeth 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 through a belt. The second threaded rod 510 is used to rotate and 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.

[0071] 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 serration 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 limit 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.

[0072] Although the present invention has been described above with reference to the embodiments, various improvements can be made to it and components thereof 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 herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An earthquake-resistant buffer bracket for steel structures, characterized in that, Comprising: A support mechanism (100), which includes an upper support frame (110) and a lower support frame (120); A vibration sensing mechanism (200), which is installed 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), which is installed on the support mechanism (100). Wherein, when the vibration sensing mechanism (200) works, it automatically drives the adaptive damping mechanism (300) to start working, and absorbs and dissipates the energy generated by the vibration; An adaptive buffering mechanism (400), which is installed on the support mechanism (100) and buffers the relative movement between the upper support frame (110) and the lower support frame (120) when working. Wherein, when the adaptive damping mechanism (300) works, it automatically drives the adaptive buffering mechanism (400) to work, and adaptively adjusts the buffering coefficient of the relative movement between the upper support frame (110) and the lower support frame (120); A first mounting plate (110b) is provided at the bottom of the upper support frame (110); The vibration sensing mechanism (200) includes an eccentric cam (210) movably installed on the side wall of the first mounting plate (110b); A second mounting plate (110c) is provided at the bottom of the upper support frame (110); 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 having its side wall sliding 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; A plurality of first sawteeth (210a) are provided at the bottom of the eccentric cam (210); The first transmission component (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 sawteeth (210a) are uniformly arranged along the circumferential direction on the inner wall of the ratchet disc (330c); Support columns (110a) are provided on both sides of the bottom of the upper support frame (110); On both sides of the top of the lower support frame (120), there are sleeves (120a) that are slidably connected to the bottom of the support columns (110a) and have a first elastic member inside; the adaptive buffer mechanism (400) includes a connection block (410) installed on the side wall of the support column and having first hinge seats (410a) on both sides, a connection plate (420) located on both sides of the support column 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 top of the lower support frame (120) has a first limit sliding groove (120b) adapted to the bottom of the connection plate (420); The side wall of the first friction block (310) has a plurality of second sawteeth (310a); The second transmission assembly (440) includes a first transmission gear (440a) installed at the bottom of the upper support frame (110) and meshing with the second sawteeth (310a), a first bevel gear set (440b) installed at 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) installed at 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) with opposite thread directions at both ends and having one end connected to the other end of the second bevel gear set (440c). Among them, the two connection plates (420) on the adjacent sides of the two support columns (110a) are threadedly sleeved on the corresponding first threaded rod (440d).

2. The aseismic buffer bracket for steel structures according to claim 1, wherein, The first elastic member and the second elastic member (430) are variable stiffness springs.

3. The aseismic buffer bracket for steel structures according to claim 1, characterized in that It further includes a damping adjustment mechanism (500). When the eccentric cam (210) swings to a certain height, it automatically drives the damping adjustment mechanism (500) to start working to adjust the frictional resistance between the first friction block (310) and the second friction block (320).

4. The seismic buffer bracket for steel structures according to claim 3, characterized in that, The bottom of the upper support frame (110) is provided with a second limit sliding groove (110d). The top of the second friction block (320) extends into the second limit sliding groove (110d) and its side wall has a plurality of third elastic members (320a) with the other ends connected to the inner wall of the second limit sliding groove (110d); The bottom of the upper support frame (110) is provided with a third mounting plate (110e); The side wall of the eccentric cam (210) has third sawteeth (210b); The damping adjustment mechanism (500) includes a second threaded rod (510) mounted 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) mounted on the side wall of the first mounting plate (110b) and corresponding to the third serration (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.

Images