Assembled building seismic isolation device with movable limiting function

Abstract

The present invention relates to the field of seismic isolation of prefabricated buildings, and in particular to a seismic isolation device for prefabricated buildings with a movable limiting function, further comprising a bottom plate and a top plate placed above the bottom plate, with seismic isolation supports provided in the centers of the bottom plate and the top plate; a support frame is provided near each of the four top corners of the bottom plate, with a seismic isolation damper provided inside each support frame, the upper end of the seismic isolation damper being rotatably connected to the top plate, and the lower end of the seismic isolation damper being rotatably connected to the bottom plate; a limiting frame is provided above the support frame, with telescopic sleeves uniformly provided circumferentially on the inner side of the limiting frame, and an arc-shaped limiting plate is provided on each telescopic sleeve, and a spring is provided between the limiting plate and the limiting frame, and the spring is sleeved on the outside of the telescopic sleeve. The present invention effectively limits the movement of the seismic isolation damper, thereby slowing down the speed at which the seismic isolation damper wears out during use.

Description

Technical Field

[0001] The present invention relates to the field of prefabricated building seismic isolation, and in particular to a prefabricated building seismic isolation device with a movable limiting function. Background Art

[0002] Buildings assembled on site from prefabricated parts and components are called prefabricated buildings. They are divided into five types according to the form of prefabricated components and the construction method: block buildings, panel buildings, box buildings, skeleton panel buildings and rising-plate and rising-storey buildings. Prefabricated buildings are quickly promoted around the world due to their fast construction speed and low production cost. However, at present, many prefabricated buildings have various drawbacks in their fixation. Some use mechanical connections that are not firm, or simple rigid connections that cannot adapt to various natural conditions. Therefore, seismic isolation devices need to be installed on the ground floor.

[0003] For example, existing patent CN107237419A discloses a seismic isolation device in which the seismic isolation support is always under compression under tension. The device comprises an upper flange with a shear key, upper and lower horizontal bidirectional sliding brackets, a lower flange with a shear key, and a seismic isolation support. The seismic isolation support is fixed between the upper and lower flanges. Lower horizontal bidirectional sliding brackets are symmetrically provided on either side of the seismic isolation support, which connect the upper flange to the underlying building structure. Upper horizontal bidirectional sliding brackets are symmetrically provided on the other two sides of the seismic isolation support, which connect the lower flange to the upper building structure. Although the seismic isolation support can be kept in a vertical compression state regardless of whether the building structure is under a combined compression state or a tension state under gravity load and earthquake action, and can deform and dissipate energy in the horizontal direction, the device is unable to withstand the tensile force generated by the building overturning when the building is subjected to a large overturning moment such as a wind-driven earthquake, which can easily lead to damage to the seismic isolation device. Tensile damage to the seismic isolation device has a very adverse impact on the building. Summary of the Invention

[0004] The embodiment of the present invention provides an assembled building seismic isolation device with a movable limiting function, which solves the problem that the seismic isolation device is unable to withstand the tensile force generated by the overturning of the building due to excessive stretching.

[0005] In order to solve the above technical problems, the present invention provides an assembled building seismic isolation device with a movable limiting function, including a seismic isolation damper, a bottom plate and a top plate placed above the bottom plate, and seismic isolation supports are arranged in the centers of the bottom plate and the top plate; a support frame is arranged near the four top corners of the bottom plate, and a seismic isolation damper is arranged inside each support frame, the upper end of the seismic isolation damper is rotatably connected to the top plate, and the lower end of the seismic isolation damper is rotatably connected to the bottom plate; a limit frame is arranged above the support frame, and a limit plate is arranged inside the limit frame, which is mounted on the seismic isolation damper. The limit frame and the limit plate are connected by a number of telescopic sleeves arranged circumferentially, and the outside of the telescopic sleeves is mounted with springs.

[0006] Compared with the prior art, the present invention has the following beneficial effects:

[0007] This device is provided with four limit devices. When the four seismic isolation dampers are stretched too much, the telescopic sleeve supports the limit plate through the force of the spring, and the limit plate limits the seismic isolation damper so that the seismic isolation damper can only move on the inner side of the limit plate. This can effectively prevent the seismic isolation damper from moving too much, effectively limit the movement of the seismic isolation damper, and thus slow down the speed at which the seismic isolation damper is worn out.

[0008] Furthermore, the preferred embodiment of the present invention is:

[0009] The bottom of the support frame is connected to the base plate through a support rod.

[0010] The limiting frame is an annular structure, and the limiting frame is connected to the limiting frame by four circumferentially arranged limiting rods.

[0011] The telescopic sleeve rod comprises an inner rod and an outer rod, the outer rod is connected to the inner wall of the limit frame, the inner rod is connected to the outer wall of the limit plate, and the inner rod is plugged into the outer rod.

[0012] The upper and lower ends of the seismic isolation damper are respectively connected to the top plate and the bottom plate through universal joints.

[0013] A rubber sleeve is provided on the outside of the seismic isolation damper.

[0014] A guard plate is arranged between the top plate and the bottom plate.

[0015] The top of the top plate is connected to the component plate of the building through a connecting plate, and a base plate is provided at the bottom of the bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of this application, and do not constitute a limitation of the present invention. In the drawings:

[0017] Figure 1 Schematic diagram of the external structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the bottom plate, top plate, base plate and connecting plate of the present invention;

[0019] Figure 3 for Figure 2 Side view of;

[0020] Figure 4 It is a top view of the annular plate, telescopic sleeve rod, limit plate and spring structure of the present invention.

[0021] In the figure: bottom plate 1; top plate 2; support rod 3; support frame 4; seismic isolation damper 5; limit rod 6; limit frame 7; telescopic sleeve rod 8; limit plate 9; spring 10; rubber sleeve 11; seismic isolation support 12; base plate 13; connecting plate 14; bolt 15; guide rod 16; guide rod 2 17; guard plate 18; component plate 19; through hole 1 20; through hole 2 21. Implementation Method

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0023] like Figures 1 to 3 As shown, an assembled building seismic isolation device with a movable limiting function is mainly composed of a seismic isolation damper 5, a bottom plate 1, and a top plate 2 placed above the bottom plate 1.

[0024] The bottom plate 1 and the top plate 2 are rectangular structures respectively. Seismic isolation supports 12 are installed in the centers of the bottom plate 1 and the top plate 2. The top of the seismic isolation support 12 is bolted to the top plate 2, and the bottom of the seismic isolation support 12 is bolted to the bottom plate 1.

[0025] A support frame 3 is provided near the four top corners of the base plate 1, and each support frame 3 is fixedly connected to the base plate 1 through four support rods 6; each support frame 3 is respectively inclinedly installed with a seismic isolation damper 5, and the upper end of the seismic isolation damper 5 is rotatably connected to the top plate 2 through a universal shaft, and the lower end of the seismic isolation damper 5 is rotatably connected to the base plate 1 through a universal shaft.

[0026] like Figure 4 As shown, in this embodiment, an annular limit frame 7 is further provided above the support frame 4. The outside of the limit frame 7 is fixedly connected to the support frame 3 through four limit rods 6 evenly arranged circumferentially. Four telescopic sleeve rods 8 are radially provided on the inner side wall of the limit frame 7, and the telescopic sleeve rods 8 are evenly arranged around the center of the limit frame 7.

[0027] Each telescopic sleeve rod 8 is composed of an inner rod and an outer rod. The interior of the outer rod is a central hole structure. One end of the outer rod is fixedly connected to the inner wall of the limit frame 7, and one end of the inner rod is plugged into the outer rod. The other end of the inner rod is fixedly connected to an arc-shaped limit plate 9. The four limit plates 9 form a complete circular ring, and the seismic isolation damper 5 is placed inside the circular ring.

[0028] A spring 10 is also installed between each telescopic sleeve 8 and its corresponding limit plate 9. The spring 10 is sleeved on the outside of the telescopic sleeve 8. When the limit plate 9 is squeezed, the telescopic sleeve 8 supports the limit plate 9 through the elastic force of the spring 10, and then the limit plate 9 limits the seismic isolation damper 5.

[0029] In this embodiment, in order to protect the surface of the seismic isolation damper 5 , a rubber sleeve 11 is wrapped around the surface of the seismic isolation damper 5 . The rubber sleeve 11 can prevent the seismic isolation damper 5 from being worn due to contact with the limiting plate 9 .

[0030] In this embodiment, in order to reduce the ingress of dust between the bottom plate 1 and the top plate 2 , guard plates 18 are hingedly connected to the four sides of the top plate 2 via hinges.

[0031] In order to facilitate the disassembly of the bottom plate 1 and the top plate 2, a base plate 13 is provided at the bottom of the bottom plate 1, and a guide rod 16 is vertically fixed and welded to the four top corners of the upper surface of the base plate 13. A through hole 20 that matches the guide rod 16 is provided at the four top corners of the bottom plate 1. The bottom plate 1 can be quickly installed on the base plate 13 by plugging the through hole 20 with the guide rod 16, and then the base plate 1 is fixed to the base plate 13 by bolts; a connecting plate 14 is also provided above the top plate 2, and a component plate 19 of the building structure is installed on the connecting plate 14; a guide rod 17 is also vertically welded to the four top corners of the connecting plate 14, and a through hole 21 that matches the guide rod 17 is provided at the four top corners of the top plate 2. The top plate 2 can be quickly installed on the connecting plate 14 by plugging the through hole 21 with the guide rod 17, and then fixed by bolts.

[0032] When this device is in use, when the foundation vibrates, the component plate 18 of the building structure will follow the vibration, and the component plate 19 will drive the connecting plate 14 to make the top plate 2 follow the vibration. The four seismic isolation dampers 5 will extend and contract, and the connecting plate 14 on the top plate 2 will be supported and shock-absorbing by the seismic isolation support 12 and the four seismic isolation dampers 5. When the four seismic isolation dampers 5 are over-stretched, the rubber sleeve 11 on the seismic isolation damper 5 will touch the limit plate 9. The limit plate 9 blocks the seismic isolation damper 5 through the force of the spring 10 and supports the seismic isolation damper 5 to continue stretching, thereby effectively avoiding the seismic isolation damper 5 from moving too much, effectively limiting the movement of the seismic isolation damper 5, thereby slowing down the speed at which the seismic isolation damper 5 is worn out, and well ensuring the use of the building.

[0033] The present invention provides four limit devices. When the four seismic isolation dampers are stretched too much, the telescopic sleeve supports the limit plate through the force of the spring, and the limit plate limits the seismic isolation damper so that the seismic isolation damper can only move on the inner side of the limit plate. This can effectively prevent the seismic isolation damper from moving too much, effectively limit the movement of the seismic isolation damper, and thus slow down the speed at which the seismic isolation damper is worn out.

[0034] The above is only a specific implementation method of the present invention, but the protection of the present invention is not limited to this. All equivalent changes or replacements of the technical features of the technical solution that can be thought of by technicians in this technical field are included in the protection scope of the present invention.

Claims

1. An assembled building seismic isolation device with a movable limiting function, comprising a seismic isolation damper, characterized in that: The structure further comprises a bottom plate and a top plate disposed above the bottom plate, wherein seismic isolation supports are disposed at the centers of the bottom plate and the top plate; a support frame is disposed near each of the four top corners of the bottom plate, and a seismic isolation damper is disposed within each support frame, wherein the upper end of the seismic isolation damper is rotatably connected to the top plate, and the lower end of the seismic isolation damper is rotatably connected to the bottom plate; A limit frame is set above the support frame, and telescopic sleeve rods are evenly arranged on the inner circumference of the limit frame. Each telescopic sleeve rod is respectively provided with an arc-shaped limit plate, and a spring is further provided between the limit plate and the limit frame. The spring is sleeved on the outside of the telescopic sleeve rod; The bottom of the support frame is connected to the base plate through support rods; The limiting frame is an annular structure, and the limiting frame is connected to the limiting frame by four circumferentially arranged limiting rods; The telescopic sleeve rod comprises an inner rod and an outer rod, the outer rod is connected to the inner wall of the limit frame, the inner rod is connected to the outer wall of the limit plate, and the inner rod is plugged into the outer rod.

2. The assembled building seismic isolation device with a movable limiting function according to claim 1 is characterized in that: The upper and lower ends of the seismic isolation damper are respectively connected to the top plate and the bottom plate through universal joints.

3. The assembled building seismic isolation device with a movable limiting function according to claim 1 is characterized in that: A rubber sleeve is provided on the outside of the seismic isolation damper.

4. The assembled building seismic isolation device with a movable limiting function according to claim 1 is characterized in that: A guard plate is arranged between the top plate and the bottom plate.

5. The assembled building seismic isolation device with a movable limiting function according to claim 1 is characterized in that: The top of the top plate is connected to the component plate of the building through a connecting plate, and a base plate is provided at the bottom of the bottom plate.

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