CN112746754B

CN112746754B - Buckling restrained brace

Info

Publication number: CN112746754B
Application number: CN202110020445.6A
Authority: CN
Inventors: 杨应华; 苗杰
Original assignee: Xian University of Architecture and Technology
Current assignee: Xian University of Architecture and Technology
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2022-06-24
Anticipated expiration: 2041-02-07
Also published as: CN112746754A

Abstract

The invention relates to the technical field of buckling supports, in particular to a buckling restrained brace. The automatic bearing device comprises a supporting mechanism, wherein the supporting mechanism at least comprises a fixing device, the fixing device comprises an upper fixing plate, a lower fixing plate is hinged to the lower portion of the upper fixing plate, fixing screw rods are symmetrically installed at the side end of the surface of the lower fixing plate, a moving plate is arranged on the surface of each fixing screw rod, a fixing motor is arranged on the outer side of each fixing screw rod, and a stretching device is arranged and comprises a supporting plate, stretching screw rods, driven bevel gears, driving shafts, limiting blocks, limiting bearing plates and a rotary table. The invention can facilitate the support clamping of various shapes by the arranged fixing device and the opening device, and the whole device can be unfolded and stretched.

Description

Buckling restrained brace

Technical Field

The invention relates to the technical field of buckling supports, in particular to a buckling restrained brace.

Background

Buckling support is a support structure that uses in the building construction field at present. At construction's in-process, when the framework to room roof beam or whole house formed to constructor's internal operation can use one kind to carry out the support plate that tentatively supports to room roof beam or whole framework, wherein most support plate then is buckling support structure, and buckling support structure has certain pressure effect of alleviating directly over and bringing, and then is adopted by most construction building.

In present building industry, the bucking bearing structure that uses carries out house room roof beam supporting framework for the fixed plate that is "ten" style of calligraphy more, when supporting the use to single-unit, when supporting to large-scale mechanical equipment or majority spare part promptly, current bucking bearing structure only relies on the horizontal plane at top rather than contacting, so that the equipment of top probably produces and rocks, and simultaneously, current bearing structure's size can't be adjusted, and then, need support probably frequent change of needs under to the size of difference, and then the efficiency of influence work. Therefore, the buckling restrained brace is provided, and the existing problems are solved conveniently.

Disclosure of Invention

The present invention is directed to a buckling restrained brace, which solves the above problems of the prior art.

In order to achieve the above object, the present invention provides a buckling restrained brace, comprising a brace mechanism, the brace mechanism at least comprising:

the fixing device comprises an upper fixing plate with a downward opening and an N-shaped shape, a lower fixing plate is hinged below the upper fixing plate and is rectangular with an upward opening, fixing screw rods are symmetrically arranged at the side end of the surface of the lower fixing plate, moving plates are arranged on the surfaces of the fixing screw rods and are in threaded connection with the fixing screw rods, the bottoms of the moving plates are movably connected with the surface of the lower fixing plate, fixing motors are arranged on the outer sides of the fixing screw rods, and the fixing motors are located at the outer side ends of the lower fixing plate;

when the fixing device is used specifically, the upper fixing plate and the lower fixing plate are hinged, the N-shaped upper fixing plate can be conveniently fixedly clamped with the lower fixing plate, the lower fixing plate is contacted with a structure body to be supported above, the structure body is clamped and matched with the interior of the lower fixing plate, meanwhile, the size of the structure body to be supported is different, the motor arranged at the side end is connected with a power supply, namely the fixed screw rod rotates, and further, the moving plate is in threaded connection with the fixed screw rod, namely the moving plate deviates towards the thread direction of the fixed screw rod, namely the moving plate moves towards the inner side relatively, namely the structure to be fixed in the interior is clamped, and multi-size fixed connection and matching are achieved.

The stretching device comprises two supporting plates, the two supporting plates are symmetrically arranged, each supporting plate is provided with two supporting plates, the supporting plates on the inner sides are hinged to and matched with the two side ends of the lower fixing plate, stretching screw rods are symmetrically arranged between the supporting plates and in threaded connection with the supporting plates, the stretching screw rods are used for stretching the supporting plates outwards, driven bevel gears are arranged on the opposite side ends of the stretching screw rods, driving bevel gears are arranged above the surfaces of the driven bevel gears and are in meshed connection with the driven bevel gears, a driving shaft is arranged at the surface center of the driving bevel gears, limiting blocks are sleeved on the surfaces of the stretching screw rods and are movably connected with the stretching screw rods, limiting bearing plates are arranged on the side ends of the limiting blocks, and the tops of the limiting bearing plates are fixedly mounted with the lower fixing plate, a turntable is arranged close to the top of the driving shaft;

when the expanding device is used specifically, the two parts of the supporting plate can obtain preliminary position change effect when the supporting plate is used for fixing a structural body through the hinged installation of the supporting plate and the lower fixing plate, when the existing structural body to be supported is not matched with the size of the current supporting plate, the supporting plate is in threaded connection through the installed expanding screw rod, the adsorbed expanding screw rod is rotated through rotating the turntable close to the top of the driving shaft, namely the expanding screw rod acts on the supporting plate, namely the arranged supporting plate can move towards one side relatively, the limiting block and the limiting bearing plate can ensure that the expanding screw rod has certain stability, meanwhile, if the supporting plate needs to move in the opposite direction, the turntable is rotated in the opposite direction, namely the supporting plate is relatively deviated, the size is increased or reduced through deviation, so that the bearing force of the supporting plate at the opposite position is changed, meanwhile, the position of the supporting plate is changed so that the supporting plate can be suitable for supporting work under various size environments.

As a further improvement of the technical scheme, the inner side surface of the moving plate is symmetrically provided with fixed springs, the side ends of the fixed springs are respectively provided with a guide plate, and the guide plates are used for buffering and extruding the internal structure.

As a further improvement of the technical scheme, an offset ring is installed at the bottom of the lower fixing plate, an offset screw rod is connected to the inner thread of the offset ring, a side fixing frame is movably connected to one side end of the offset screw rod, and the side fixing frame is in a triangular structure shape.

As a further improvement of the technical scheme, a T-shaped support frame is arranged in the side fixing frame and used for supporting and limiting the side fixing frame.

As a further improvement of the technical scheme, a fixing block is installed between the supporting plates, a connecting rod is installed between the fixing blocks, the side ends of the connecting rod are all hinged to form a connecting plate, and the connecting plate is used for propping open the supporting plates.

As a further improvement of this technical scheme, open the device and install the device that shifts up under the device, the device that shifts up includes the curb plate, the curb plate symmetry sets up two, movable mounting has the eccentric wheel between the curb plate, the side surface mounting of eccentric wheel has the connecting axle, the motor that shifts up is installed to a side end of connecting axle, it is located to shift up the motor the outside of curb plate, the outer ring that has cup jointed on the surface of eccentric wheel, the pole that shifts up is installed at the surperficial top of outer ring, the board that shifts up is installed to the top of pole that shifts up.

As a further improvement of the technical scheme, pulleys are symmetrically arranged at the bottom of the side plate and are symmetrically provided with two groups. The side plates can move conveniently along with the movement of the fixing device and the opening device through the arranged pulleys.

As a further improvement of the technical scheme, the slowly moving plates are arranged above the side plates, the two slowly moving plates are arranged in an up-and-down symmetrical mode, and slowly moving springs are arranged between the slowly moving plates.

As a further improvement of the technical scheme, a limiting device is arranged below the fixing device and comprises a limiting plate, the limiting plate is a rectangle with an upward opening, and the limiting plate is used for limiting the bottom of the whole device.

As a further improvement of the technical scheme, the inner side edge of the limit plate is provided with an outer groove symmetrically, and the outer groove is matched with the supporting plate in a clamping manner.

Compared with the prior art, the invention has the beneficial effects that:

1. in this bucking restraint is supported, contact through the structure that bottom plate and top need support, make the structure be the joint cooperation with the inside of bottom plate, the size of the structure that rises because of needs support is different simultaneously, and then, through the motor with the side installation access power, even make fixed screw rod take place to rotate, and then, wherein the movable plate is threaded connection with fixed screw rod, even make the movable plate shift to fixed screw rod's screw thread direction promptly inboard, relative motion takes place to the inboard movable plate promptly, carry out the clamping action to the structure that needs the fixing of inside promptly, obtain the fixed connection cooperation of many sizes.

2. In the buckling restrained brace, when the existing structure body to be supported is not matched with the size of the existing bracing plate, the bracing plate is in threaded connection with the bracing plate through the installed opening screw rod, the turntable close to the top of the driving shaft is rotated to enable the adsorbed opening screw rod to rotate, namely the opening screw rod acts on the bracing plate, so that the bracing plate can move relatively to one side, the limiting block and the limiting bearing plate can enable the opening screw rod to have certain stability, meanwhile, if the bracing plate is required to move in the opposite direction, the turntable is further rotated in the opposite direction, even if the bracing plate is relatively deviated, the size of the deviation is increased or reduced, so that the bearing force of the bracing plate at the relative position is changed, meanwhile, the position of the supporting plate is changed so that the supporting plate can be suitable for supporting work under various size environments.

3. In this bucking restraint is supported, through the rotation with the skew lead screw, the movable mounting of side mount and skew lead screw to the bottom plate that makes the top can carry out the excursion motion to one side, even make fixing device all can take place synchronous skew with opening the device, whole device can be convenient for be applicable to a plurality of different positions and support.

4. In this bucking restraint is supported, through moving up the motor and insert the power, the slew velocity of motor is moved up in the control, make the connecting axle rotate, rotate in step between eccentric wheel and the curb plate promptly, make the upper boom that the eccentric wheel surface cup jointed take place upward movement, reach the certain degree after, the upper boom promotes the upper mounting plate and goes up the effect of moving up to the opening device of top, prevent fixing device and form pressure to opening the device after having born certain pressure and push down, even must open the lead screw pressurized decline, through the device that moves up, make the effect that the device can receive the power that shifts up of opening.

Drawings

FIG. 1 is a schematic view of the entire structure of embodiment 1;

FIG. 2 is a schematic structural view of a support mechanism according to embodiment 1;

FIG. 3 is a schematic view of the fixing device according to embodiment 1;

FIG. 4 is an exploded view of the lower fixing plate of embodiment 1;

FIG. 5 is a schematic view showing the structure of the expanding device of embodiment 1;

FIG. 6 is a schematic view of the structure at A in example 1;

FIG. 7 is a schematic view of the structure at B in example 1;

FIG. 8 is a schematic view of the structure of the upward-moving device according to embodiment 1;

FIG. 9 is a schematic view of the structure at point C in example 1;

fig. 10 is a schematic structural view of the limiting device in embodiment 1.

The various reference numbers in the figures mean:

100. a support mechanism;

110. a fixing device; 111. an upper fixing plate; 112. a lower fixing plate; 1121. fixing the screw rod; 1122. moving the plate; 1123. fixing a motor; 1124. fixing the spring; 1125. a guide plate; 1126. an offset ring; 113. offsetting a screw rod; 114. a side fixing frame; 1140. a support frame;

120. an opening device; 121. a supporting plate; 1210. a fixed block; 122. a connecting rod; 123. a connecting plate; 124. opening the screw rod; 1241. a driven bevel gear; 1242. a drive bevel gear; 1243. a drive shaft; 1244. a limiting block; 1245. a limiting bearing plate; 1246. a turntable;

130. an upward moving device; 131. a side plate; 1310. a pulley; 132. an eccentric wheel; 133. a connecting shaft; 134. an upward moving motor; 135. slowly moving the plate; 136. slowly moving the spring; 137. an external ring; 138. an upper moving rod; 139. moving the plate upwards;

140. a limiting device; 141. a limiting plate; 142. an outer groove; 143. and (6) an inner inclined groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Example 1

Referring to fig. 1-10, the present embodiment provides a buckling restrained brace, including a brace mechanism 100, the brace mechanism 100 at least including:

the fixing device 110 comprises an upper fixing plate 111 with a downward opening and an N shape, a lower fixing plate 112 is hinged below the upper fixing plate 111, the lower fixing plate 112 is rectangular with an upward opening, fixing screws 1121 are symmetrically installed at the side end of the surface of the lower fixing plate 112, moving plates 1122 are arranged on the surfaces of the fixing screws 1121, the moving plates 1122 are in threaded connection with the fixing screws 1121, the bottoms of the moving plates 1122 are movably connected with the surface of the lower fixing plate 112, fixing motors 1123 are arranged on the outer sides of the fixing screws 1121, and the fixing motors 1123 are located at the outer side ends of the lower fixing plate 112;

when the fixing device 110 of the present invention is used specifically, the upper fixing plate 111 and the lower fixing plate 112 are hinged to each other, and the N-shaped upper fixing plate 111 can be conveniently fixed and clamped to the lower fixing plate 112, and the lower fixing plate 112 is in contact with a structure to be supported above, so that the structure is clamped and matched to the inside of the lower fixing plate 112, and because the sizes of the structures to be supported are different, the motor mounted at the side end is connected to a power supply, so that the fixing screw rod 1121 is rotated, and further, the moving plate 1122 is in threaded connection with the fixing screw rod 1121, so that the moving plate 1122 is shifted toward the inner side of the fixing screw rod 1121, that is, the moving plate 1122 moves inward relatively, that is, the structure to be fixed inside is clamped, so that multi-size fixed connection and matching are achieved.

The opening device 120 comprises two supporting plates 121, the supporting plates 121 are symmetrically arranged in two groups, two supporting plates 121 are arranged in each group, the supporting plates 121 on the inner sides are hinged to and matched with two side ends of the lower fixing plate 112, opening screw rods 124 are symmetrically arranged between the supporting plates 121, the opening screw rods 124 are in threaded connection with the supporting plates 121, the opening screw rods 124 are used for outwards opening the supporting plates 121, driven bevel gears 1241 are arranged on the opposite side ends of the opening screw rods 124, driving bevel gears 1242 are arranged above the surfaces of the driven bevel gears 1241, the driving bevel gears 1242 are in meshed connection with the driven bevel gears 1241, driving shafts 1243 are arranged at the centers of the surfaces of the driving bevel gears 1242, limit blocks 1244 are sleeved on the surfaces of the opening screw rods 124, the limit blocks 1244 are movably connected with the opening screw rods 124, limit bearing plates 1245 are arranged at the side ends of the limit blocks 1244, the tops of the limit bearing plates 1245 are fixedly mounted with the lower fixing plate 112, a rotary table 1246 is installed near the top of the driving shaft 1243;

when the expanding device 120 of the present invention is used specifically, the two parts of the supporting plate 121 can obtain a preliminary position changing effect when the supporting plate 121 is fixed to a structure body by the hinged installation of the supporting plate 121 and the lower fixing plate 112, when the existing structure body to be supported does not fit the size of the current supporting plate 121, the expanding screw rod 124 installed is in threaded connection with the supporting plate 121, the rotary disc 1246 close to the top of the driving shaft 1243 is rotated to rotate the adsorbed expanding screw rod 124, that is, the expanding screw rod 124 acts on the supporting plate 121, that is, the arranged supporting plate 121 moves relatively to one side, the arranged limit block 1244 and the limit bearing plate 1245 can make the expanding screw rod 124 have a certain stability, and if the supporting plate 121 needs to move in the opposite direction, the rotary disc 1246 is rotated in the opposite direction, that is, that the supporting plate 121 shifts relatively, the size of the offset is increased or decreased, so that the bearing strength of the bracing plate 121 at the relative position is changed, and the position of the bracing plate 121 is changed, so that the bracing plate 121 can be adapted to support work under various sizes.

In this embodiment, the fixed springs 1124 are symmetrically disposed on the inner side surface of the moving plate 1122, the side end portions of the fixed springs 1124 are respectively provided with the guide plates 1125, the guide plates 1125 are used for relieving and pressing the internal structure, and the guide plates 1125 and the fixed springs 1124 are disposed so that the internal structure can prevent the structure from being damaged by excessive pressure when the moving plate 1122 is clamped and fastened by relative movement, and the fixed springs 1124 can buffer and press the structure to increase certain protection.

Specifically, an offset ring 1126 is mounted at the bottom of the lower fixing plate 112, an offset screw 113 is screwed inside the offset ring 1126, a side fixing frame 114 is movably connected to one end of the offset screw 113, the side fixing frame 114 is in a triangular structure, the offset ring 1126 and the offset screw 113 are in threaded connection, the side fixing frame 114 and the offset screw 113 are movably mounted by rotating the offset screw 113, so that the upper lower fixing plate 112 can perform offset movement towards one side, namely, the fixing device 110 and the opening device 120 can perform synchronous offset, and the whole device can be conveniently suitable for being supported at a plurality of different positions.

Furthermore, a support 1140 in a shape of "T" is installed inside the side fixing frame 114, the support 1140 is used for supporting and limiting the side fixing frame 114, and the "T" shaped support 1140 is provided, so that the side fixing frame 114 can be effectively stabilized during use, and the use is enhanced.

Still further, install fixed block 1210 between the relative fagging 121, install connecting rod 122 between the fixed block 1210, the side of relative connecting rod 122 is all articulated to be installed connecting plate 123, connecting plate 123 is used for strutting fagging 121, be provided with connecting rod 122 and connecting plate 123 between fagging 121 through the symmetry, and the connecting plate 123 at both ends all is articulated installation, so that the expansion through connecting plate 123 or withdraw and can make fagging 121 expand in step and withdraw, fagging 121's volume has been increased promptly, can expand more when carrying out the support to the structure body to fagging 121 and prop up.

Wherein, an upward moving device 130 is installed right below the opening device 120, the upward moving device 130 comprises two side plates 131, two side plates 131 are symmetrically arranged, an eccentric wheel 132 is movably installed between the side plates 131, a connecting shaft 133 is installed on the surface of the side end of the eccentric wheel 132, an upward moving motor 134 is installed on one side end of the connecting shaft 133, the upward moving motor 134 is located outside the side plates 131, an external ring 137 is sleeved on the surface of the eccentric wheel 132, an upward moving rod 138 is installed on the top of the surface of the external ring 137, an upward moving plate 139 is installed above the upward moving rod 138, the upward moving motor 134 is connected to a power supply through the upward moving device 130, the rotating speed of the upward moving motor 134 is controlled, the connecting shaft 133 rotates, namely, the eccentric wheel 132 and the side plates 131 synchronously rotate, the upward moving rod 138 sleeved on the surface of the eccentric wheel 132 moves upward, and after reaching a certain degree, the upward moving rod 138 pushes the upward moving plate 139 to move the opening device 120 above, the fixing device 110 is prevented from pressing down the expanding device 120 after being subjected to a certain pressure, i.e. the expanding screw 124 is pressed down, and the expanding device 120 can take up the force of moving up through the moving up device 130.

Further, pulleys 1310 are symmetrically installed at the bottom of the side plate 131, and the pulleys 1310 are symmetrically arranged in two groups. The pulley 1310 is provided so that the side plate 131 can be easily moved along with the movement of the fixing device 110 and the opening device 120.

Furthermore, the upward moving plates 135 are installed above the side plates 131, two upward moving plates 135 are symmetrically arranged on the upward side and the downward side, the upward moving springs 136 are arranged between the upward moving plates 135, and the upward moving plates 135 and the upward moving springs 136 are arranged so that the upward moving plates 135 and the upward moving plates 139 on the top are fixed to relieve the downward movement effect.

In addition, the limiting device 140 is arranged below the fixing device 110, the limiting device 140 comprises a limiting plate 141, the limiting plate 141 is in a rectangular shape with an upward opening, the limiting plate 141 is used for limiting the bottom of the whole device, and the limiting plate 141 with the upward opening is mounted at the bottom and is in a horizontal state, so that the whole device is effectively limited in position, namely is in contact with the ground to be horizontal, and the supporting effect of the whole device is enhanced.

It should be noted that the inner side edge of the position limiting plate 141 is symmetrically provided with the eccentric grooves 142, the eccentric grooves 142 are in clamping fit with the supporting plate 121, the eccentric grooves 142 and the supporting plate 121 form a fixed clamping fit, so that the supporting plate 121 can be stably fixed inside the position limiting plate 141, the whole device can be in contact fit with the ground at a certain level, the stability of the device is improved, meanwhile, the central surface of the position limiting plate 141 is provided with a plurality of groups of symmetrical eccentric grooves 143, the eccentric grooves 143 can be matched with the size of the supporting plate 121, and the supporting plate 121 can be moved to be fixed inside the plurality of different horizontal eccentric grooves 143 when moving.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A buckling restrained brace, comprising: comprising a support mechanism (100), said support mechanism (100) comprising at least:

the fixing device (110) comprises a lower fixing plate (112), the lower fixing plate (112) is rectangular with an upward opening, fixing screw rods (1121) are symmetrically installed at the side end of the surface of the lower fixing plate (112), moving plates (1122) are arranged on the surfaces of the fixing screw rods (1121), the moving plates (1122) are in threaded connection with the fixing screw rods (1121), the bottom of the moving plates (1122) are movably connected with the surface of the lower fixing plate (112), fixing motors (1123) are arranged on the outer sides of the fixing screw rods (1121), and the fixing motors (1123) are located at the outer side end of the lower fixing plate (112);

the stretching device (120) comprises two symmetrically arranged supporting plates (121), two supporting plates (121) are arranged in each group, the supporting plates (121) on the inner side are hinged and matched with the two side ends of the lower fixing plate (112), stretching screw rods (124) are symmetrically arranged between the supporting plates (121), the stretching screw rods (124) are in threaded connection with the supporting plates (121), the stretching screw rods (124) are used for stretching the supporting plates (121) outwards, driven bevel gears (1241) are arranged on the opposite side ends of the stretching screw rods (124), driving bevel gears (1242) are arranged above the surfaces of the driven bevel gears (1241), the driving bevel gears (1242) are in meshed connection with the driven bevel gears (1241), and driving shafts (1243) are arranged at the centers of the surfaces of the driving bevel gears (1242), the surface of the opening screw rod (124) is sleeved with a limiting block (1244), the limiting block (1244) is movably connected with the opening screw rod (124), a limiting bearing plate (1245) is installed at the side end of the limiting block (1244), the top of the limiting bearing plate (1245) is fixedly installed with the lower fixing plate (112), and a turntable (1246) is installed at the top close to the driving shaft (1243).

2. The buckling-restrained brace of claim 1, wherein: the inner side surface of the moving plate (1122) is symmetrically provided with fixed springs (1124), the side end parts of the fixed springs (1124) are respectively provided with a guide plate (1125), and the guide plates (1125) are used for buffering and extruding an internal structure body.

3. The buckling-restrained brace of claim 1, wherein: the bottom of bottom plate (112) is installed and is shifted ring (1126), the internal thread of shifting ring (1126) is connected with skew lead screw (113), a side end swing joint of skew lead screw (113) has side mount (114), side mount (114) are the triangle-structure form.

4. The buckling-restrained brace of claim 3, wherein: a T-shaped support frame (1140) is arranged inside the side fixing frame (114), and the support frame (1140) is used for supporting and limiting the side fixing frame (114).

5. The buckling-restrained brace of claim 1, wherein: relatively install fixed block (1210) between fagging (121), install connecting rod (122) between fixed block (1210), it is relative the side of connecting rod (122) is all articulated to be installed connecting plate (123), connecting plate (123) are used for right strut of fagging (121).

6. The buckling-restrained brace of claim 1, wherein: open device (130) of moving up is installed under device (120), move up device (130) and include curb plate (131), curb plate (131) symmetry sets up two, movable mounting has eccentric wheel (132) between curb plate (131), the side surface mounting of eccentric wheel (132) has connecting axle (133), upward shift motor (134) is installed to a side of connecting axle (133), upward shift motor (134) are located the outside of curb plate (131), outer ring (137) have been cup jointed on the surface of eccentric wheel (132), last shift lever (138) are installed at the surperficial top of outer ring (137), upward shift lever (139) are installed to the top of last shift lever (138).

7. The buckling-restrained brace of claim 6, wherein: pulleys (1310) are symmetrically installed at the bottom of the side plate (131), and two groups of pulleys (1310) are symmetrically arranged.

8. The buckling-restrained brace of claim 6, wherein: all install above curb plate (131) and slowly move board (135), slowly move board (135) longitudinal symmetry and set up two, slowly move and be provided with between board (135) and slowly move spring (136).

9. The buckling-restrained brace of claim 1, wherein: a limiting device (140) is arranged below the fixing device (110), the limiting device (140) comprises a limiting plate (141), the limiting plate (141) is a rectangle with an upward opening, and the limiting plate (141) is used for limiting the bottom of the whole device.

10. The buckling-restrained brace of claim 9, wherein: the edge of the inner side close to the limiting plate (141) is symmetrically provided with an outer groove (142), and the outer groove (142) is in clamping fit with the supporting plate (121).