Energy dissipation device for a building structure

Abstract

The application discloses a kind of energy dissipation damping devices for building structure, including stiffened damper and deformation identification component;The deformation identification component is installed between the upper connecting plate and the lower connecting plate of the stiffened damper, and the deformation identification component is used to identify the bending deformation amount of the energy dissipation steel plate of stiffened damper;Wherein, in the deformation identification component, the bending deformation amount of the energy dissipation steel plate is monitored using a proximity sensor;In the present application, the deformation identification component is arranged between the upper connecting plate and the lower connecting plate of the stiffened damper, and the bending deformation amount of the energy dissipation steel plate of the stiffened damper is identified using the deformation identification component, so that the bending degree of the energy dissipation steel plate can be obtained in time, and the energy dissipation state of the stiffened damper can be grasped in time, thereby greatly reducing the safety hazard of the energy dissipation device.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of building engineering, and particularly relates to a kind of energy dissipation damping devices for building structure. BACKGROUND

[0002] The energy dissipation damping structure for building is used to set energy dissipation device or damping element at the design position of building structure, generate friction, bending, shear, torsion, elastic-plastic or viscoelastic hysteresis deformation through energy dissipation device or damping element, dissipate or absorb the ability of earthquake acting on building structure, and further reduce the seismic response of main structure, so as to avoid the destruction or collapse of structure, and achieve the purpose of shock absorption and shock control.

[0003] At present, as energy dissipation damping structure, stiffened damper has been widely used in building structure; in the use process of existing stiffened damper, continuous deformation of energy dissipation steel plate inside is easy to occur with continuous energy dissipation and shock absorption; since the stiffened damper is often installed on the top of wall, the installation position is high, so the deformation of energy dissipation steel plate cannot be observed and identified in time, and further the energy dissipation state of damper cannot be grasped in time, which produces serious safety hazard. SUMMARY

[0004] In view of the technical problems in the prior art, the present application provides an energy dissipation damping device for building structure, to solve the serious safety hazard that the energy dissipation state of damper cannot be grasped in time due to the high installation position of stiffened damper on the top of wall, so the deformation of energy dissipation steel plate cannot be observed and identified in time.

[0005] To achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0006] The present application provides an energy dissipation damping device for building structure, which comprises a stiffened damper and a deformation identification assembly; the deformation identification assembly is installed between the upper connecting plate and the lower connecting plate of the stiffened damper, and is used to identify the bending deformation amount of the energy dissipation steel plate of the stiffened damper; wherein, in the deformation identification assembly, a proximity sensor is used to monitor the bending deformation amount of the energy dissipation steel plate.

[0007] Further, the deformation identification assembly comprises a deformation measuring mechanism, a guide mechanism and a pushing mechanism.

[0008] The deformation measuring mechanism comprises a support plate, a first mounting plate, a proximity sensor, a fixed block, a second mounting plate and a sensing block.

[0009] The bottom end of the support plate is vertically fixed on the upper surface of the lower connecting plate, and the top end of the support plate extends towards the lower surface of the upper connecting plate; the first mounting plate is fixed on the top end of the support plate, and the proximity sensor is mounted on the first mounting plate; the fixed block is slidingly arranged on the guide mechanism, the first end of the fixed block is connected with the pushing mechanism, the second end of the fixed block is connected with the second mounting plate, and the sensing block is fixedly arranged on the second mounting plate; wherein the guide mechanism is horizontally arranged between the upper connecting plate and the lower connecting plate, and is fixedly connected with the first mounting plate, and the axis of the guide mechanism is vertically arranged with the energy dissipation steel plate;

[0010] The pushing mechanism comprises a pushing plate and a transmission pin, the pushing plate is vertically fixed on the lower surface of the upper connecting plate, and the pushing plate is vertically arranged with the energy dissipation steel plate; the pushing plate is provided with an inclined groove with a preset inclination angle; one end of the transmission pin is slidingly arranged in the inclined groove, and the other end of the transmission pin is fixedly connected with the first end of the fixed block.

[0011] Further, the guide mechanism comprises a slide rod and a spring; the slide rod is horizontally arranged between the upper connecting plate and the lower connecting plate, the first end of the slide rod is vertically fixed with the first mounting plate, and the second end of the slide rod extends away from the support plate; wherein the slide rod is vertically arranged with the energy dissipation steel plate;

[0012] The center of the fixed block is arranged in the through hole, and the slide rod is slidingly inserted in the through hole; the spring is sleeved outside the slide rod, one end of the spring is fixedly connected with the first mounting plate, and the other end of the spring is fixedly connected with the fixed block.

[0013] Further, the number of the slide rods is one or more; wherein a plurality of slide rods are arranged in parallel and spaced apart.

[0014] Further, when the number of the slide rods is more than one, a plurality of through holes are formed in the center of the fixed block; wherein the number of the through holes is the same as the number of the slide rods, and the slide rods are respectively inserted in the through holes.

[0015] Further, the slide rod and the through hole of the fixed block, and the transmission pin and the inclined groove are in smooth contact.

[0016] Further, the preset inclination angle of the inclined groove is less than 30°; wherein the preset inclination angle is the angle between the axis of the inclined groove and the upper connecting plate or the lower connecting plate.

[0017] Further, the support assembly is arranged below the stiffened damper; the support assembly comprises a rectangular plate, an inverted V-shaped support frame and a rotating connecting mechanism;

[0018] The rectangular plate is horizontally arranged below the lower connecting plate, and the inverted V-shaped support frame is arranged below the rectangular plate; wherein the upper surface of the rectangular plate is connected with the lower surface of the lower connecting plate, and the top end of the inverted V-shaped support frame is connected with the center of the lower surface of the rectangular plate; the rotating connecting mechanism is symmetrically arranged at both sides of the lower end of the inverted V-shaped support frame, and comprises a rotating plate and a fixed plate; one end of the rotating plate is rotatably connected with the lower end of the inverted V-shaped support frame, and the other end of the rotating plate is perpendicularly fixed with one side of the fixed plate, and the other side of the fixed plate is used for being connected with the building structure.

[0019] Compared with the prior art, the energy dissipation device for building structure has the following beneficial effects:

[0020] The energy dissipation device for building structure provided by the present application has the following beneficial effects:

[0021] Further, the bending deformation amount of the energy dissipation steel plate is transmitted to the sensing block by the pushing mechanism in the deformation identification assembly, and the sensing block moves along the axis of the guide mechanism under the action of the guide mechanism; the bending deformation amount of the energy dissipation steel plate can be obtained according to the trigonometric relationship by monitoring the position of the sensing block by the proximity sensor and combining the preset inclination angle of the chute, the identification process of the bending deformation amount is simple, the principle is clear, the calculation difficulty is small, and the accuracy is high.

[0022] Further, the guide mechanism adopts the combined design of the slide rod and the spring, the fixed block and the slide rod are combined to form a sliding block-rail mechanism, so as to ensure the accuracy of the position movement of the sensing block; the support effect of the spring is utilized to avoid the displacement of the fixed block under the bending deformation of the non-energy dissipation steel plate, and the accuracy of the bending deformation identification result is improved.

[0023] Further, the number of slide rods is set to be multiple, which can ensure the reliability of the position movement of the fixed block and ensure the accuracy of the monitoring data of the proximity sensor. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 The overall structure schematic view of the energy dissipation device for building structure described in the embodiment;

[0025] Fig. 2Structure schematic view of the pushing mechanism in the embodiment;

[0026] Fig. 3 Structure schematic view of the deformation measuring mechanism and the guiding mechanism in the embodiment.

[0027] Wherein, 101 upper connecting plate, 102 lower connecting plate, 103 energy dissipation steel plate;201 rectangular plate, 202 inverted V-shaped support frame, 203 rotating plate, 204 fixed plate;301 support plate, 302 first mounting plate, 303 proximity sensor, 304 fixed block, 305 second mounting plate, 306 sensing block;401 slide rod, 402 spring;501 push plate, 502 inclined groove, 503 transmission pin. DETAILED DESCRIPTION

[0028] In order to make the technical problems solved by the present application, technical scheme and beneficial effects more clearly, the following specific embodiments, the present application is further described in detail. It should be understood that the specific embodiments described herein are merely used to explain the present application, and are not used to limit the present application.

[0029] The present application provides a kind of energy dissipation shock absorber for building structure, including stiffener damper, support component and deformation identification component;The upper end of the stiffener damper is connected with the top of building structure, and the lower end of the stiffener damper is connected with the upper end of the support component, and the lower end of the support component is connected with building structure wall.

[0030] In the present application, the stiffener damper includes upper connecting plate 101, lower connecting plate 102 and several energy dissipation steel plates 103;The upper connecting plate 101 and the lower connecting plate 102 are arranged in parallel, and several energy dissipation steel plates 103 are vertically arranged between the upper connecting plate 101 and the lower connecting plate 102;Wherein, the upper end of the energy dissipation steel plate 103 is vertically fixed with the lower surface of the upper connecting plate 101, and the lower end of the energy dissipation steel plate 103 is vertically fixed with the upper surface of the lower connecting plate 102.

[0031] In the present application, the support component is arranged below the lower connecting plate 102 of the stiffener damper, for supporting the stiffener damper;The support component includes rectangular plate 201, inverted V-shaped support frame 202 and rotating connection mechanism;The rectangular plate 201 is horizontally arranged below the lower connecting plate 102, and the inverted V-shaped support frame 202 is arranged below the rectangular plate 201.

[0032] Specifically, the upper surface of the rectangular plate 201 is connected with the lower surface of the lower connecting plate 102, and the top end of the inverted V-shaped support frame 202 is connected with the center of the lower surface of the rectangular plate 201; the rotating connection mechanism is symmetrically arranged at both sides of the lower end of the inverted V-shaped support frame 202, and the rotating connection mechanism comprises a rotating plate 203 and a fixed plate 204; one end of the rotating plate 203 is rotatably connected with the lower end of the inverted V-shaped support frame 202, and the other end of the rotating plate 203 is perpendicularly fixed with one side of the fixed plate 204, and the other side of the fixed plate 204 is used for being connected with the building structure wall.

[0033] In the present application, the deformation identification assembly is installed between the upper connecting plate 101 and the lower connecting plate 102 of the stiffened damper, and the deformation identification assembly is used for identifying the bending deformation of the energy dissipation steel plate 103 of the stiffened damper; wherein in the deformation identification assembly, the bending deformation amount of the energy dissipation steel plate 103 is monitored by using a proximity sensor; the deformation identification assembly comprises a deformation measuring mechanism, a guide mechanism and a pushing mechanism.

[0034] Specifically, the deformation measuring mechanism comprises a support plate 301, a first mounting plate 302, a proximity sensor 303, a fixed block 304, a second mounting plate 305 and a sensing block 306; the support plate 301 is vertically arranged between the upper connecting plate 101 and the lower connecting plate 102; wherein the bottom end of the support plate 301 is perpendicularly fixed on the upper surface of the lower connecting plate 102, and the top end of the support plate 301 extends towards the lower surface of the upper connecting plate 101; the first mounting plate 302 is fixed on the top end of the support plate 301, and the proximity sensor 303 is installed on the first mounting plate 302; the first end of the fixed block 304 is connected with the pushing mechanism, and the second end of the fixed block 304 is connected with the second mounting plate 305; wherein the first mounting plate 302 and the second mounting plate 305 are vertically and parallel arranged, and both are parallel with the energy dissipation steel plate 103; the sensing block 306 is fixedly arranged on the second mounting plate 305, and the proximity sensor 303 is used for collecting the position information of the sensing block 306.

[0035] The fixed block 304 is slidingly arranged on the guide mechanism and can move horizontally along the guide mechanism; the guide mechanism is horizontally arranged between the upper connecting plate 101 and the lower connecting plate 102 and is fixedly connected with the first mounting plate 302, and the axis of the guide mechanism is perpendicularly arranged with the energy dissipation steel plate 103.

[0036] Specific, the guide mechanism, including slide rod 401 and spring 402;The slide rod 401 is horizontally arranged between the upper connecting plate 101 and the lower connecting plate 102, the slide rod 401 is vertically arranged with the energy dissipation steel plate 103;Wherein, the first end of the slide rod 401 is vertically fixed with the first mounting plate 302, the second end of the slide rod 401 extends away from the support plate 301;The center of the fixed block 304 is arranged in the through hole, the slide rod 401 is slidably inserted in the through hole;The spring 402 is sleeved on the outer side of the slide rod 401, one end of the spring 402 is fixedly connected with the first mounting plate 302, the other end of the spring 402 is fixedly connected with the fixed block 304;Preferably, the number of the slide rod 2 is one or more;Wherein, a plurality of slide rods 2 are arranged in parallel and spaced apart;When the number of the slide rod 402 is more, the center of the fixed block 304 is provided with a plurality of through holes;Wherein, the number of the through hole is the same as the number of the slide rod 402, and the slide rod 402 is respectively inserted in the through hole;The slide rod 503 and the through hole of the fixed block 304 are in smooth contact.

[0037] Specific, the push mechanism, including push plate 501 and transmission pin 503;The push plate 501 is vertically fixed on the lower surface of the upper connecting plate 101, and the push plate 501 is vertically arranged with the energy dissipation steel plate 103;The push plate 501 is provided with an inclined groove 502 with a preset inclination angle;Wherein, the upper end of the inclined groove 502 is arranged close to the lower surface of the upper connecting plate 101 on one side, and close to one end of the first mounting plate 302;The lower end of the inclined groove 502 is arranged away from the lower surface of the upper connecting plate 101 on one side, and away from one end of the first mounting plate 302;One end of the transmission pin 503 is slidably arranged in the inclined groove 502, the other end of the transmission pin 503 is fixedly connected with the first end of the fixed block 304;Preferably, the preset inclination angle of the inclined groove 502 is less than 30°;Wherein, the preset inclination angle is the angle between the axis of the inclined groove 502 and the upper connecting plate 101 or the lower connecting plate 102, that is, the angle between the axis of the inclined groove 502 and the lower edge of the push plate 501 is less than 30°;The transmission pin 503 and the inclined groove 502 are in smooth contact.

[0038] Working principle:

[0039] The energy dissipation and shock absorption device for building structure disclosed by the application, the upper connecting plate 101 of the stiffened damper is arranged against the lower part of the building top, and the stiffened damper is supported by the support assembly;When the stiffened damper is used for energy dissipation and shock absorption of building structure, the energy in the seismic structure is dissipated or absorbed through the bending deformation energy dissipation of the energy dissipation steel plate 103, so as to reduce the seismic response of the main structure.

[0040] As the stiffening damper continues to dissipate energy and reduce vibration, the bending deformation of the energy-dissipating steel plate 103 causes the upper connecting plate 101 to move towards the lower connecting plate 102. During the movement of the upper connecting plate 101, the push plate 501 moves synchronously. During the movement of the push plate 501, the transmission action between the inclined groove 502 and the transmission pin 503 drives the transmission pin 503 and the fixed block 304 to move under force. During the movement of the transmission pin 503 and the fixed block 304, the fixed block 304 is pushed to move along the axis of the slide rod 40. Through the guiding action of the slide rod 401 on the fixed block 304, the fixed block 304, after being subjected to force, moves towards the first mounting plate 301. As the energy-dissipating steel plate 103 continues to bend and deform, the second mounting plate 305 is driven to continuously move towards the first mounting plate 302. The position of the sensing block 306 is detected by the proximity sensor 303, and the degree of bending deformation of the energy-dissipating steel plate 103 is obtained, so as to timely grasp the energy dissipation status of the stiffening damper.

[0041] During the movement of the fixed block 304 driven by the movement of the push plate 501, the inclined groove 502 is inclined on the push plate 501, and the angle between the inclined groove 502 and the lower end of the push plate 501 is less than 30°. Through trigonometric function relationship, the second mounting plate 305 is forced to move further towards the first mounting plate 302 during the downward movement of the push plate 501, so as to make the recognition process of the deformation recognition component more sensitive.

[0042] When the damper is working, the longitudinal deformation of the energy-consuming steel plate 103 is the same as the downward displacement of the upper connecting plate 101, both being y. The fixed block 304 drives the sensing block 306 to move along the inclined groove 502 towards the first mounting plate 302 under the pushing action, which is x, and can be identified by the sensor 303. The angle between the inclined groove 502 and the lower end of the pushing plate 501 is g. Then, the longitudinal deformation of the energy-consuming steel plate 103 is y = x / tang.

[0043] Example

[0044] As attached Figs. 1-3 As shown, this embodiment provides an energy-dissipating damping device for building structures, including a stiffening damper; the stiffening damper includes an upper connecting plate 101, a lower connecting plate 102, and a plurality of energy-dissipating steel plates 103; the plurality of energy-dissipating steel plates 103 are fixed between the upper connecting plate 101 and the lower connecting plate 102; the energy-dissipating damping device for building structures also includes a support component disposed below the lower connecting plate 102 and serving to support the stiffening damper, and a deformation identification component disposed on the stiffening damper for identifying the bending deformation of the energy-dissipating steel plates 103 in the stiffening damper during the energy-dissipating damping process.

[0045] In the embodiment, the deformation identification assembly comprises a deformation measuring mechanism, a guiding mechanism and a pushing mechanism; the deformation measuring mechanism comprises a support plate 301 fixed on the upper surface of the lower connecting plate 102, a first mounting plate 302 fixed on the support plate 301, and a proximity sensor 303 mounted on the first mounting plate 302; the first mounting plate 302 is connected with a fixed block 304 through the guiding mechanism, the fixed block 304 is fixed with a second mounting plate 305, and the second mounting plate 305 is mounted with an inductive block 306; the upper connecting plate 101 is provided with a pushing mechanism for pushing the fixed block 304.

[0046] During the energy dissipation and shock absorption process of the stiffened damper to the building structure, the deformation measuring mechanism, the guiding mechanism and the pushing mechanism cooperate with each other to realize the timely acquisition of the bending deformation of the energy dissipation steel plate 103, so as to timely grasp the energy dissipation state of the stiffened damper.

[0047] The guiding mechanism comprises a plurality of slide rods 401 fixed on the first mounting plate 302, and the middle part of the fixed block 304 is slidably sleeved on the slide rods 401; the outer sides of the slide rods 401 are respectively sleeved with springs 402, one end of the spring 403 is fixedly connected with the first mounting plate 302, and the other end of the spring 403 is fixedly connected with the fixed block 304.

[0048] The pushing mechanism comprises a pushing plate 501 fixed on the lower surface of the upper connecting plate 101, and the pushing plate 501 is provided with an inclined groove 502; the inclined groove 502 is slidably provided with a transmission pin 503; the transmission pin 503 is fixed with the first end of the fixed block 304, and the second mounting plate 305 is fixed with the second end of the fixed block 304.

[0049] It should be noted that during the movement of the upper connecting plate 101, the upper connecting plate 101 will drive the pushing plate 501 to move synchronously; during the movement of the pushing plate 501, the pushing plate 501 drives the transmission pin 503 and the fixed block 304 to move under stress through the transmission between the inclined groove 502 and the transmission pin 503; during the movement of the transmission pin 503 and the fixed block 304, the fixed block 304 moves towards the first mounting plate 302 due to the guiding action of the slide rod 401.

[0050] In the embodiment, the chute 502 is arranged obliquely on the push plate 501, and the angle between the axis of the chute 502 and the upper connecting plate 101 or the lower connecting plate 102 is less than 30°, that is, the angle between the axis of the chute 502 and the lower edge of the push plate 501 is less than 30°; in the process of driving the movement of the fixed block 304 by the movement of the push plate 501, because the chute 502 is arranged obliquely on the transmission plate 501 and the angle between the chute 502 and the lower edge of the push plate 501 is less than 30°, the fixed block 304 is forced to move farther away from the first mounting plate 302 by using the trigonometric function relationship in the process of the downward movement of the push plate 501, and the process of the deformation measurement mechanism is more sensitive.

[0051] In the embodiment, the support assembly includes a rectangular plate 201 fixed at the lower end of the lower connecting plate 102, a small surface center of the rectangular plate 201 is fixed with an inverted V-shaped support frame 202, both sides of the lower end of the inverted V-shaped support frame 202 are rotatably connected with a rotating plate 203, and the rotating plate 203 is fixed with a fixed plate 204; wherein the two fixed plates 204 are screw-installed and fixed with the building structure walls on both sides, so as to support the stiffening damper through the inverted V-shaped support frame 202 and the rectangular plate 201.

[0052] In the process of energy dissipation and shock absorption of the stiffening damper to the building, the deformation measurement mechanism, the guide mechanism and the pushing mechanism in the deformation identification assembly can timely obtain the degree of bending deformation of the energy dissipation steel plate, so as to timely grasp the energy dissipation state of the stiffening damper.

[0053] The above embodiment is only one of the implementation manners of the technical scheme of the present application, and the scope of protection of the present application is not limited to the embodiment, but also includes any changes, substitutions and other implementation manners easily thought by those skilled in the art within the technical scope disclosed by the present application.

Claims

1. An energy-dissipating and vibration-damping device for building structures, characterized in that, It includes a stiffening damper and a deformation identification component; the deformation identification component is installed between the upper connecting plate (101) and the lower connecting plate (102) of the stiffening damper, and the deformation identification component is used to identify the bending deformation of the energy-consuming steel plate (103) of the stiffening damper; wherein, the bending deformation of the energy-consuming steel plate (103) is monitored by a proximity sensor in the deformation identification component; The deformation recognition component includes a deformation measurement mechanism, a guiding mechanism, and a pushing mechanism; The deformation measuring mechanism includes a support plate (301), a first mounting plate (302), a proximity sensor (303), a fixing block (304), a second mounting plate (305), and a sensing block (306). The bottom end of the support plate (301) is vertically fixed to the upper surface of the lower connecting plate (102), and the top end of the support plate (301) extends toward the lower surface of the upper connecting plate (101); the first mounting plate (302) is fixed to the top end of the support plate (301), and the proximity sensor (303) is mounted on the first mounting plate (302); the fixing block (304) is slidably disposed on the guide mechanism, the first end of the fixing block (304) is connected to the pushing mechanism, the second end of the fixing block (304) is connected to the second mounting plate (305), and the sensing block (306) is fixedly disposed on the second mounting plate (305); wherein, the guide mechanism is horizontally disposed between the upper connecting plate (101) and the lower connecting plate (102), and is fixedly connected to the first mounting plate (302), and the axis of the guide mechanism is perpendicular to the energy-consuming steel plate (103); The pushing mechanism includes a pushing plate (501) and a transmission pin (503). The pushing plate (501) is vertically fixed to the lower surface of the upper connecting plate (101), and the pushing plate (501) is perpendicular to the energy-consuming steel plate (103). The pushing plate (501) has a groove (502) with a preset inclination angle. One end of the transmission pin (503) is slidably disposed in the groove (502), and the other end of the transmission pin (503) is fixedly connected to the first end of the fixing block (304). The guiding mechanism includes a slide rod (401) and a spring (402); the slide rod (401) is horizontally disposed between the upper connecting plate (101) and the lower connecting plate (102), the first end of the slide rod (401) is vertically fixed to the first mounting plate (302), and the second end of the slide rod (401) extends away from the support plate (301); wherein, the slide rod (401) is perpendicular to the energy-consuming steel plate (103); The fixed block (304) has a through hole at its center, and the slide rod (401) slides through the through hole; the spring (402) is sleeved on the outside of the slide rod (401), one end of the spring (402) is fixedly connected to the first mounting plate (302), and the other end of the spring (402) is fixedly connected to the fixed block (304).

2. The energy-dissipating and vibration-damping device for building structures according to claim 1, characterized in that, The number of slide bars (401) is one or more; wherein, the multiple slide bars (401) are arranged vertically and horizontally at intervals.

3. The energy-dissipating and vibration-damping device for building structures according to claim 2, characterized in that, When there are multiple sliding rods (401), the center of the fixing block (304) is provided with multiple through holes; wherein, the number of through holes is the same as the number of sliding rods (401), and the sliding rods (401) are respectively inserted into the through holes.

4. The energy-dissipating and vibration-damping device for building structures according to claim 1, characterized in that, The sliding rod (401) and the through hole of the fixing block (304) are in smooth contact, as are the transmission pin (503) and the inclined groove (502).

5. The energy-dissipating and vibration-damping device for building structures according to claim 1, characterized in that, The preset tilt angle of the inclined groove (502) is less than 30°; wherein, the preset tilt angle is the angle between the axis of the inclined groove (502) and the upper connecting plate (101) or the lower connecting plate (102).

6. The energy-dissipating and vibration-damping device for building structures according to claim 1, characterized in that, It also includes a support assembly disposed below the stiffening damper; the support assembly includes a rectangular plate (201), an inverted V-shaped support frame (202), and a rotating connection mechanism; The rectangular plate (201) is horizontally positioned below the lower connecting plate (102), and the inverted V-shaped support frame (202) is positioned below the rectangular plate (201). The upper surface of the rectangular plate (201) is connected to the lower surface of the lower connecting plate (102), and the top end of the inverted V-shaped support frame (202) is connected to the center of the lower surface of the rectangular plate (201). The rotating connection mechanism is symmetrically arranged on both sides of the lower end of the inverted V-shaped support frame (202), and the rotating connection mechanism includes a rotating plate (203) and a fixed plate (204). One end of the rotating plate (203) is rotatably connected to the lower end of the inverted V-shaped support frame (202), and the other end of the rotating plate (203) is vertically fixed to one side of the fixed plate (204). The other side of the fixed plate (204) is used to connect to the building structure wall.

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