A seismic detection device for building structure

Abstract

The present invention discloses a seismic detection device for building structures, which relates to the technical field of seismic detection of buildings, and includes a storage plate; a first action mechanism, which is arranged at the lower part of the storage plate, and includes a bracket, an active triangular wheel, a driven triangular wheel, a U-shaped frame, a limiting cylinder, a sliding rod and a connecting rod, wherein the driven triangular wheel is provided in plurality, and the two ends of the plurality of driven triangular wheels and the active triangular wheel are rotatably mounted on the bracket and can rotate by themselves, and the rotation axis is arranged horizontally; a second action mechanism, which is arranged at the lower part of the first action mechanism, includes a second lifting rod and a bearing seat, wherein the inner shaft of the bearing seat can rotate by itself and the end is fixedly connected to the bracket, and the second lifting rod is arranged as two independently arranged on a pair of sides of the lower part of the bearing seat. The first action mechanism and the second action mechanism of the present invention operate to simulate the wave-like motion, lateral oscillation, up and down vibration, rotation state, and tilt state of the ground, and realize multifunctional seismic simulation.

Description

Technical Field

[0001] The invention relates to the technical field of building earthquake resistance detection, and in particular to a building structure earthquake resistance detection device. Background Art

[0002] The seismic resistance of a building structure is one of the key indicators for evaluating its performance. In order to ensure the safety of a building, the seismic resistance of the building structure must be fully verified during the design phase. A commonly used verification method is to load the building structure into an earthquake vibration simulation device to simulate earthquake vibrations to test whether the seismic resistance of the building structure is qualified.

[0003] The existing patent document discloses a building structure seismic simulation detection device, the announcement number is: CN118565749A, including a box body and a placement plate arranged above the box body for loading a modeling structure model, and also includes a sliding plate, which is arranged on the top of the box body for sliding left and right, and covers the top opening opened on the top of the box body; a lifting plate, which is fixedly installed at the bottom of the placement plate, and extends into the box body after passing through the lifting groove opened on the sliding plate and the top opening; a support spring, which is fixedly arranged between the bottom of the placement plate and the sliding plate; a pushing plate, which is arranged in the box body for vertical movement, and a slope surface is formed on the top, and a slope groove coupled with the slope surface is opened on the sliding plate; a moving plate, which is arranged in the box body for horizontal movement, and is used to push the lifting plate and the pushing plate to move up. This technical solution can make the placement plate for loading the modeling structure model shake up and down, left and right, and up and down and left and right in sequence through the horizontal movement of the moving plate in the box body.

[0004] The change in the ground motion pattern during an earthquake is mainly due to the different propagation speeds and modes of different types of seismic waves. Seismic waves mainly include longitudinal waves and transverse waves, which cause the ground to vibrate up and down and shake horizontally, but there are also surface waves in earthquakes. Surface waves such as Love waves and Rayleigh waves also play an important role in earthquakes. They have the slowest propagation speed, large energy, and long period, and can form obvious rotational motion on the ground. Surface waves such as Rayleigh waves and Love waves, especially Rayleigh waves, are mixed fluctuations in the vertical and horizontal directions, which usually make the ground move up and down in an elliptical or wave-like manner along the propagation direction of the wave, causing the ground to move in a wave-like manner, and at the epicenter, it will also cause the ground to fracture, bulge, collapse, etc., directly leading to the tilt of the ground and building structures, and there is also vibration after the building structure tilts. In summary, in an earthquake, building structures are subject to vibration hazards in various different states, and the existing detection devices for earthquake resistance of building structures have the defect of a single detection method. Even if some devices have been optimized, they still cannot cover the full cycle of various earthquake conditions that exist during simulated earthquakes.

[0005] Therefore, it is necessary to invent a building structure seismic detection device to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a building structure seismic detection device to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a building structure seismic detection device, comprising:

[0008] The storage board is made of deformable board;

[0009] The first action mechanism is arranged at the lower part of the storage plate, and includes a bracket, an active triangular wheel, a driven triangular wheel, a U-shaped frame, a limiting cylinder, a sliding rod and a connecting rod. The driven triangular wheel is provided in plurality, and the two ends of the plurality of driven triangular wheels and the active triangular wheel are rotatably mounted on the bracket and can rotate by themselves, and the rotation axis is arranged horizontally. The U-shaped frame is sleeved on the outer side of the active triangular wheel, and the limiting cylinder is provided in two. The two limiting cylinders are independently arranged on both sides of the U-shaped frame. The sliding rod is provided in two and respectively slidably inserted in the limiting cylinder. One end of the sliding rod is fixedly connected to the U-shaped frame, and the two ends of the connecting rod are respectively connected to the sliding rod and the storage plate;

[0010] The second action mechanism is arranged at the lower part of the first action mechanism, and includes a second lifting rod and a bearing seat. The bearing seat includes an inner shaft and an outer shaft. The inner shaft of the bearing seat can rotate by itself and the end is fixedly connected to the bracket. The second lifting rod is set in two. The two second lifting rods are independently arranged on a pair of sides of the lower part of the bearing seat, and the output end is universally connected to the outer shaft of the bearing seat.

[0011] Optionally, the first action mechanism also includes a pulley and a first motor, and the plurality of driven triangular wheels and the driving triangular wheels are dispersedly arranged, and a corner of each end is rotatably connected to the bracket, and the rotation axes of the plurality of driven triangular wheels and the driving triangular wheels are parallel, and the end rotation axes of the driving triangular wheel and the driven triangular wheel are coaxially connected with pulleys, and the pulleys of the driving triangular wheel and the plurality of driven triangular wheels are connected in turn through belt transmission, and the first motor is fixedly mounted on the bracket, and the output end of the first motor is coaxially connected to the rotation axis of the driving triangular wheel, and the corner positions of the driving triangular wheel and the plurality of driven triangular wheels point to different directions.

[0012] Optionally, both ends of the two sliding rods are fixedly connected to a first spring, and the other end of the first spring is fixedly connected to the bracket.

[0013] Optionally, one end of the connecting rod is fixedly connected to the sliding rod, and the other end is fixedly mounted with a first lifting rod, and an output end of the first lifting rod is hinged to the bottom of the storage plate.

[0014] Optionally, a support plate is fixedly mounted on the bottom end of the outer shaft of the bearing seat, a universal joint is mounted on the output end of the second lifting rod and is connected to the support plate via the universal joint, and the other end of the second lifting rod is independently hinged.

[0015] Optionally, a second motor is further included, the inner shaft of the bearing seat is coaxially fixedly connected to a gear ring, the second motor is fixedly mounted on a support plate, the output end of the second motor is coaxially connected to a gear, and the gear is meshingly connected to the gear ring.

[0016] Optionally, the second action mechanism also includes a base, which is arranged at the lower part of the support plate and is centrally disposed, and the base is provided with a plurality of sockets from top to bottom, and the plurality of sockets are arranged in a circular array, and a support column is inserted into the interior of the socket, and the top of the support column is universally connected to the bottom of the support plate through a universal joint, and the bottom end of the support column is fixedly connected to a second spring, and the bottom end of the second spring is fixedly connected to the bottom of the socket.

[0017] Optionally, a plurality of fixing seats are provided on the upper surface of the storage plate, and the fixing seats are in a cylindrical structure with an open top and threads on the inner wall, and the fixing seats are embedded in the interior of the storage plate and protrude out of the top of the fixing seats.

[0018] Technical effects and advantages of the present invention:

[0019] The actions of the first action mechanism and the second action mechanism of the present invention, as well as the adaptive deformable storage plate, realize the simulation of ground wave-like movement, lateral oscillation, up and down vibration, rotation state, tilt state, and wave-like, lateral, up and down and rotation simulation in the tilted state. The coordinated adjustment of rotation and tilt can also adjust the earthquake simulation after the building structure is tilted at different angles, covering a variety of earthquake states, and realizing multifunctional earthquake-resistant simulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall vertical structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the vertical structure of the first action mechanism and the second action mechanism of the present invention.

[0022] Figure 3 It is a schematic diagram of the main structure of the present invention.

[0023] Figure 4 It is a schematic diagram of the front structure of the first action mechanism and the storage plate of the present invention.

[0024] Figure 5 It is a partial cross-sectional structural schematic diagram of the first action mechanism of the present invention.

[0025] Figure 6It is a schematic cross-sectional structural diagram of the second action mechanism of the present invention.

[0026] Figure 7 It is a schematic diagram of the cross-sectional structure of the present invention in state one.

[0027] Figure 8 It is a schematic diagram of the cross-sectional structure of the second state of the present invention.

[0028] Fig. 9 It is a cross-sectional structural diagram of the first action mechanism and the storage plate state of the present invention.

[0029] Fig.10 It is a schematic cross-sectional structure diagram of the first action mechanism and the storage plate in the second state of the present invention.

[0030] Fig.11 It is a schematic diagram of the three cross-sectional structures of the first action mechanism and the storage plate state of the present invention.

[0031] Fig.12 It is a schematic diagram of the vertical structure of the fixed seat of the present invention.

[0032] In the figure: 1. storage plate; 2. first action mechanism; 3. second action mechanism; 4. bracket; 5. active triangular wheel; 6. driven triangular wheel; 7. pulley; 8. belt; 9. first motor; 10. U-shaped frame; 11. limit cylinder; 12. slide rod; 13. connecting rod; 14. first lifting rod; 15. first spring; 16. second lifting rod; 17. support plate; 18. universal joint; 19. bearing seat; 20. gear ring; 21. gear; 22. second motor; 23. base; 24. socket; 25. support column; 26. second spring; 27. fixing seat; 28. thread. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] The present invention provides Figure 1-3 A seismic detection device for a building structure shown in the figure includes a placement plate 1, a first action mechanism 2 and a second action mechanism 3, which are connected in sequence from top to bottom. The placement plate 1 is used for placing the building structure to be detected, and the first action mechanism 2 and the second action mechanism 3 are both action mechanisms that simulate various states of an earthquake.

[0038] The storage plate 1 is made of a deformable plate, such as a rubber plate.

[0039] like Figure 2 and 4As shown: the first action mechanism 2 includes a bracket 4, a driving triangular wheel 5, a driven triangular wheel 6, a pulley 7 and a first motor 9, the driving triangular wheel 5 and the driven triangular wheel 6 are both columnar structures, with triangular cross-sections and arc-shaped corners, the driven triangular wheel 6 is provided in plurality, the plurality of driven triangular wheels 6 and the driving triangular wheel 5 are dispersedly arranged, and are rotatably connected to the bracket 4 at one corner of both ends, the rotation axis is horizontally arranged and the rotation axes of the plurality of driven triangular wheels 6 and the driving triangular wheel 5 are parallel, the rotation axes of the ends of the driving triangular wheel 5 and the driven triangular wheel 6 are coaxially connected with the pulley 7, the driving triangular wheel 5 and the pulleys 7 of the plurality of driven triangular wheels 6 are sequentially connected through a belt 8 for transmission, the first motor 9 is fixedly mounted on the bracket 4, the output end of the first motor 9 is coaxially connected to the rotation axis of the driving triangular wheel 5, and the corner positions of the driving triangular wheel 5 and the plurality of driven triangular wheels 6 point to different directions;

[0040] like Fig.10 and 11 As shown: the bottom of the storage plate 1 contacts the side walls of the active triangular wheel 5 and the driven triangular wheel 6, the first motor 9 drives the active triangular wheel 5 to rotate, and drives multiple driven triangular wheels 6 to rotate under the transmission of the pulley 7 and the belt 8. Since the corner positions of the active triangular wheel 5 and the multiple driven triangular wheels 6 are different, the active triangular wheel 5 and the driven triangular wheels 6 rotate to drive the storage plate 1 to move in an irregular wave-like state, simulating the wave-like movement of the ground during an earthquake.

[0041] like Figure 5 As shown: a U-shaped frame 10 is also provided on the outside of the side wall of the active triangular wheel 5, and the side wall of the active triangular wheel 5 is always in a state of being in contact with the inner wall of the U-shaped frame 10. A limiting cylinder 11 is provided on the outside of both side walls of the U-shaped frame 10, and the open ends of the limiting cylinder 11 are facing the U-shaped frame 10. The position of the limiting cylinder 11 is fixedly connected to the bracket 4 through a support, and a sliding rod 12 is slidably inserted inside the limiting cylinder 11. The end of the sliding rod 12 is fixedly connected to the U-shaped frame 10, and a connecting rod 13 is fixedly connected to the sliding rod 12. The connecting rod 13 is used to connect with the storage plate 1, and its movement principle is as follows Fig.10 and 11 As shown: the slide bars 12 on both sides of the C-shaped frame 10 are slidably inserted into the interior of the limiting cylinder 11, supporting the C-shaped frame 10 and limiting its moving position, the active triangular wheel 5 rotates to form an eccentric wheel motion state, and drives the C-shaped frame 10 to reciprocate in the axial direction of the limiting cylinder 11, and drives the storage plate 1 to reciprocate, simulating the lateral shaking of the ground during an earthquake;

[0042] Both ends of the two slide bars 12 are fixedly connected with a first spring 15, and the other end of the first spring 15 is fixedly connected to the bracket 4. The elastic fixation of the first spring 15 improves the stability of the installation and movement of the structure;

[0043] like Figure 2As shown: at least two limiting cylinders 11 are provided on both sides of the U-shaped frame 10, and at least two connecting rods 13 are provided on one side, so as to ensure that the connecting rods 13 are connected to the storage board 1 to support the storage board 1 and ensure the stability of the storage board 1 when being installed. For example, when two connecting rods 13 are provided on one side, the two connecting rods 13 are connected to the two corners of one side of the storage board 1;

[0044] like Figure 9-11 As shown: both ends of the connecting rod 13 are fixedly installed with a first lifting rod 14. When the first action mechanism 2 is set in a horizontal state, the axis of the first lifting rod 14 is vertical, and the output end of the first lifting rod 14 is hinged to the bottom of the storage plate 1. The first lifting rod 14 includes but is not limited to an electric lifting rod. The first lifting rod 14 is used to drive the storage plate 1 to move up and down to simulate the up and down oscillation during an earthquake. The first lifting rod 14 can also control whether the storage plate 1 is in contact with the active triangular wheel 5 and the driven triangular wheel 6, so as to simulate the wave-like motion of the ground, the lateral oscillation when the ground is horizontal, and the longitudinal oscillation when the ground is horizontal.

[0045] like Figure 6 As shown: the second action mechanism 3 includes a second lifting rod 16, a support plate 17, a bearing seat 19, a second motor 22 and a base 23. The base 23 is arranged at the lower part of the support plate 17 and is centrally arranged. The base 23 is a circular ring structure with a vertical axis. The side wall is provided with a plurality of sockets 24 from top to bottom. The plurality of sockets 24 are arranged in a circular array with the axis of the base 23 as the center. A support column 25 is inserted into the inside of the socket 24. The top end of the support column 25 is universally connected to the bottom of the support plate 17 through a universal joint 18. The bottom end of the support column 25 is fixedly connected to a second spring 26. The bottom end of the second spring 26 is fixedly connected to the bottom of the socket 24. The second lifting mechanism 3 includes a second lifting rod 16, a support plate 17, a bearing seat 19, a second motor 22 and a base 23 ... Two lowering rods 16 are provided, which are arranged on a pair of sides outside the base 23 and are independently provided. The bottom of the second lifting rod 16 is hinged and fixed, and the top is universally connected to the bottom of the support plate 17 through a universal joint 18. The second lifting rod 16 includes but is not limited to using an electric telescopic rod and a hydraulic telescopic rod. The bearing seat 19 is installed on the top of the support plate 17. The bearing seat 19 includes an outer shaft and an inner shaft. The bottom end of the outer shaft of the bearing seat 19 is fixedly connected to the support plate 17, and the outer part of the inner shaft of the bearing seat 19 is coaxially fixedly connected with a gear ring 20. The second motor 22 is fixedly connected to the support plate 17, and the output end of the second motor 22 is coaxially connected with a gear 21, and the gear 21 is meshed with the gear ring 20.

[0046] like Figure 7 As shown, the bracket 4 of the first action mechanism 2 is fixedly mounted on the top of the inner shaft of the bearing seat 19;

[0047] like Figure 8As shown: the second motor 22 is started to drive the gear 21 to rotate, and the gear 21 drives the inner shaft of the bearing seat 19 to rotate by meshing with the gear ring 20, thereby driving the first action mechanism 2 and the storage plate 1 to rotate, thereby realizing the ground rotation motion state during an earthquake;

[0048] The output ends of the two second lifting rods 16 extend and retract respectively, controlling the storage plate 1 to be in a tilted state, and can independently control the two sides of the ground to reciprocate up and down in the opposite directions. The second lifting rods 16 control the storage plate 1 to be in a fixed tilted state, and the first action mechanism 2 is actuated or the second action mechanism 3 controls the storage plate 1 to rotate, which can simulate the lateral vibration, longitudinal vibration, wave vibration and rotation of the ground in a tilted state after an earthquake. The second action mechanism 3 controls the rotation of the storage plate 1 and adapts to the second lifting rods 16 to control the tilt of the storage plate 1, adjust the tilt of the building structure at different angles, and the first action mechanism 2 simulates the lateral vibration, longitudinal vibration and wave vibration.

[0049] Among them, the arrangement of the base 23, the support column 25 and the second spring 26 in the second action mechanism 3 is the middle support structure of the device, which is used to improve the support strength of the device. The elastic action and universal connection of the second spring 26 ensure that it has a supporting effect and does not affect the operation of the second lifting rod 16 to control the adjustment of the tilt angle of the storage plate 1.

[0050] like Figure 1 and 12 As shown: a plurality of fixing seats 27 are provided on the upper surface of the storage plate 1. The fixing seats 27 are cylindrical and have an open top and a thread 28 on the inner wall. The fixing seats 27 are embedded in the interior of the storage plate 1 and the top of the fixing seats 27 is exposed. The installation position of the fixing seats 27 avoids the contact position between the storage plate 1 and the active triangular wheel 5 and the driven triangular wheel 6. The setting of the fixing seats 27 is used for threaded connection and fixation of the building structure.

[0051] The change in ground motion during an earthquake is mainly due to the different propagation speeds and modes of different types of seismic waves. Seismic waves mainly include longitudinal waves and transverse waves, which propagate at different speeds, resulting in changes in ground motion patterns and causing the ground to vibrate up and down and sway horizontally. However, there are also surface waves in earthquakes. Surface waves such as Love waves and Rayleigh waves also play an important role in earthquakes. They have the slowest propagation speed, high energy, and long period, and can form obvious rotational motion on the ground. Surface waves such as Rayleigh waves and Love waves, especially Rayleigh waves, are mixed fluctuations in the vertical and horizontal directions, usually causing the ground to move up and down in an elliptical or wavy shape along the propagation direction of the wave, causing the ground to move in a wavy manner, and at the epicenter, it can also cause the ground to break, bulge, collapse, etc., directly leading to the tilt of the ground and building structures.

[0052] The first action mechanism 2 and the second action mechanism 3 of the device operate, and the deformable storage plate 1 is adapted to realize the simulation of ground wave-like movement, lateral oscillation, up and down vibration, rotation state, tilt state, and wave-like, lateral, up and down and rotation simulation in the tilt state. The coordinated adjustment of rotation and tilt can also adjust the earthquake simulation of the building structure after tilting at different angles, covering a variety of earthquake states and realizing multi-functional earthquake-resistant simulation. ‌‌

[0053] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A building structure seismic detection device, characterized in that: include: The storage plate (1) is made of a deformable plate; The first action mechanism (2) is arranged at the lower part of the storage plate (1), comprising a bracket (4), an active triangular wheel (5), a driven triangular wheel (6), a U-shaped frame (10), a limiting cylinder (11), a sliding rod (12) and a connecting rod (13), wherein the driven triangular wheel (6) is arranged in plurality, and both ends of the plurality of driven triangular wheels (6) and the active triangular wheel (5) are rotatably mounted on the bracket (4) and can rotate by themselves, and the rotation axis is arranged horizontally, the U-shaped frame (10) is sleeved on the outer side of the active triangular wheel (5), the limiting cylinder (11) is arranged in plurality, and the two limiting cylinders (11) are independently arranged on both sides of the U-shaped frame (10), the sliding rod (12) is arranged in plurality and is respectively slidably inserted in the limiting cylinder (11), one end of the sliding rod (12) is fixedly connected to the U-shaped frame (10), and the two ends of the connecting rod (13) are respectively connected to the sliding rod (12) and the storage plate (1); The second action mechanism (3) is arranged at the lower part of the first action mechanism (2), and comprises a second lifting rod (16) and a bearing seat (19). The bearing seat (19) comprises an inner shaft and an outer shaft. The inner shaft of the bearing seat (19) can rotate by itself and the end thereof is fixedly connected to the bracket (4). The second lifting rod (16) is provided in two pieces. The two second lifting rods (16) are independently arranged at a pair of sides of the lower part of the bearing seat (19), and the output end is universally connected to the outer shaft of the bearing seat (19).

2. A building structure seismic detection device according to claim 1, characterized in that: The first action mechanism (2) further comprises a pulley (7) and a first motor (9); the plurality of driven triangular wheels (6) and the driving triangular wheel (5) are dispersedly arranged, and one corner of each end portion is rotatably connected to the bracket (4); the rotation axes of the plurality of driven triangular wheels (6) and the driving triangular wheel (5) are parallel; the rotation axes of the ends of the driving triangular wheel (5) and the driven triangular wheel (6) are coaxially connected with the pulley (7); the driving triangular wheel (5) and the pulleys (7) of the plurality of driven triangular wheels (6) are sequentially connected by a belt (8); the first motor (9) is fixedly mounted on the bracket (4); the output end of the first motor (9) is coaxially connected to the rotation axis of the driving triangular wheel (5); and the corner positions of the driving triangular wheel (5) and the plurality of driven triangular wheels (6) are directed in different directions.

3. The building structure seismic detection device according to claim 1, characterized in that: Both ends of the two sliding rods (12) are fixedly connected to a first spring (15), and the other end of the first spring (15) is fixedly connected to the bracket (4).

4. The building structure seismic detection device according to claim 1, characterized in that: One end of the connecting rod (13) is fixedly connected to the sliding rod (12), and the other end is fixedly mounted with a first lifting rod (14), and the output end of the first lifting rod (14) is hinged to the bottom of the storage plate (1).

5. The building structure seismic detection device according to claim 1, characterized in that: A support plate (17) is fixedly mounted on the bottom end of the outer shaft of the bearing seat (19), a universal joint (18) is mounted on the output end of the second lifting rod (16) and is connected to the support plate (17) via the universal joint (18), and the other end of the second lifting rod (16) is independently hinged.

6. A building structure seismic detection device according to claim 5, characterized in that: It also includes a second motor (22), the inner shaft of the bearing seat (19) is coaxially fixedly connected to a gear ring (20) on the outside, the second motor (22) is fixedly mounted on the support plate (17), the output end of the second motor (22) is coaxially connected to a gear (21), and the gear (21) is meshingly connected to the gear ring (20).

7. The building structure seismic detection device according to claim 5, characterized in that: The second action mechanism (3) further comprises a base (23), the base (23) being arranged at the lower part of the support plate (17) and centrally disposed, the base (23) being provided with a plurality of plug holes (24) from top to bottom, the plurality of plug holes (24) being arranged in a ring array, a support column (25) being inserted into the interior of the plug hole (24), the top end of the support column (25) being universally connected to the bottom of the support plate (17) via a universal joint (18), the bottom end of the support column (25) being fixedly connected to a second spring (26), the bottom end of the second spring (26) being fixedly connected to the bottom of the plug hole (24).

8. The building structure seismic detection device according to claim 1, characterized in that: A plurality of fixing seats (27) are provided on the upper surface of the storage plate (1). The fixing seats (27) are cylindrical structures with open tops and inner walls provided with threads (28). The fixing seats (27) are embedded in the storage plate (1) and protrude from the tops of the fixing seats (27).

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