Friction pendulum shock insulation support with anti-collision limiting and anti-pulling device

Abstract

The utility model discloses a friction pendulum shock insulation support with an anti-collision limiting and anti-pulling device. The friction pendulum shock insulation support comprises a lower support body, a sliding block and an upper support body. The lower support and the upper support are the same in structure, the sliding block is located between the lower support and the upper support, and the lower support and the upper support are arranged in a crossed mode; the lower portion of the sliding block is connected with the lower support, the upper portion of the sliding block is connected with the upper support, and the sliding block can move between the lower support and the upper support. The clamping groove of the friction pendulum shock insulation support is the V-shaped face with the two-way slopes, the sliding block slides on the V-shaped face, horizontal self-resetting is achieved through gravity, an anti-pulling device of the sliding block only freely slides in the V-shaped inwards-concave clamping groove of the support, the sliding block is vertically locked through the clamping groove, no large relative displacement exists between the sliding block and the support, and the anti-pulling function of the device is achieved. An anti-collision pad and a limiting end plate are arranged at the end of the support, movement of the sliding block is limited under the condition that the sliding support moves too much, and the limiting and anti-collision functions of the device are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration reduction and isolation, and more specifically to a friction pendulum vibration isolation support with an anti-collision limit and anti-pullout device. Background Art

[0002] The earliest friction-sliding isolation system consisted of a friction-sliding mechanism for isolating earthquake action and a damping centripetal mechanism for limited reset, mostly in the form of a plane-sliding isolation system. Since the system cannot reset itself, an additional reset device is required. In addition, this type of bearing has the characteristics of large discreteness of sliding performance and difficulty in control. It is easy to cause excessive slippage, resulting in the destruction of non-structural components that pass through the isolation layer, and even possible sliding instability. In order to solve the problem that this type of system cannot automatically reset, the University of California, Berkeley, developed a friction pendulum isolation device in the 1880s, which is called the Friction Pendulum System / Bearing (FPS / FPB). The device has the low sensitivity and high stability of the plane-sliding isolation device to the earthquake excitation frequency range, and its unique arc sliding makes it have a self-reset function. It can do pendulum-like motion when working, prolonging the natural vibration period of the isolation structure, and at the same time converting kinetic energy into heat energy through the bearing friction pair, reducing the impact of earthquakes on the structure.

[0003] For tall electrical equipment with a high center of gravity, such as flexible DC converter valves, DC circuit breakers, and bridge arm reactors, the dynamic characteristics cause them to be very sensitive to vibrations. Severe vibrations can easily lead to failure of the supporting structure and cessation of electrical functions. Under strong earthquakes, the upper electrical equipment is prone to overturning, causing local tension on the isolation layer and lifting of the isolation support. The existing friction pendulum isolation support is not suitable for the isolation needs of electrical equipment. It cannot meet the requirements of electrical equipment for limit and pull-out resistance under strong earthquakes, which can easily cause support failure and damage, upper structure overturning, and other problems under strong earthquakes, seriously affecting the promotion and use of isolation technology in the field of isolation of tall electrical equipment. Therefore, it is urgent to develop friction pendulum isolation supports that provide anti-collision limit and pull-out device functions. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the above-mentioned background technology and proposes a friction pendulum isolation support with anti-collision limit and anti-pullout devices.

[0005] In order to achieve the above objectives, the technical solution of the utility model is:

[0006] A friction pendulum seismic isolation bearing with anti-collision limit and anti-pullout devices comprises a lower bearing, a slider and an upper bearing; the lower bearing and the upper bearing have the same structure, the slider is located between the lower bearing and the upper bearing, and the lower bearing and the upper bearing are arranged in a cross shape; the lower part of the slider is connected to the lower bearing, and the upper part of the slider is connected to the upper bearing, and the slider can move between the lower bearing and the upper bearing.

[0007] Furthermore, the lower support includes a base plate, two side plates, two end plates and two anti-collision pads. A side plate is arranged on both sides of the base plate, an end plate and an anti-collision pad are arranged on the ends of the base plate, and the anti-collision pads are arranged on the inner sides of the end plates; the bottom of the base plate is arranged as a horizontal plane, and the top of the base plate is a V-shaped surface with a two-way slope, and the slopes of the top surface of the base plate in both directions are set to the same.

[0008] Furthermore, the side panel is L-shaped as a whole, the bottom surface of the side panel is horizontal, the side panel includes a flat plate and a cantilever ear whose top surface is a V-shaped surface with a bidirectional slope, the flat plate is vertically arranged, and the upper end of the flat plate is provided with a flange facing the inner side of the lower support, and the flange is the cantilever ear; the slope gradient and slope change point of the top surface of the side panel are the same as the slope gradient and slope change point of the top surface of the bottom plate; there is a V-shaped concave groove between the top surface of the bottom plate and the bottom surface of the cantilever ear.

[0009] Furthermore, the sliding block includes an upper protrusion and a lower protrusion located below the upper protrusion, and the upper protrusion and the lower protrusion are integrally formed.

[0010] Furthermore, lower anti-pullout devices are provided on the left and right sides of the lower protrusion, and the lower anti-pullout device is a convex edge arranged at the lower end of the side surface of the lower protrusion, and the shape of the convex edge is adapted to the shape of the V-shaped concave groove, and the convex edge is clamped in the V-shaped concave groove, and the lower anti-pullout devices on both sides of the lower end of the lower protrusion are respectively clamped in the V-shaped concave grooves on both sides of the lower support, and the lower anti-pullout device is movably connected to the V-shaped concave groove. When there is no external force, the lower anti-pullout device is located in the middle of the V-shaped concave groove, and the relative position of the lower anti-pullout device and the lower support remains fixed. When there is external force, the lower anti-pullout device moves back and forth along the V-shaped concave groove.

[0011] Furthermore, the bottom surface of the lower anti-pullout device is V-shaped, and the top surface is inverted V-shaped. The slopes of the V-shaped bottom and top surfaces of the lower anti-pullout device and the V-shaped concave groove are the same, and the middle of the convex bottom surface and the middle of the top surface are flat.

[0012] Furthermore, upper anti-pull-out devices are provided on the front and rear surfaces of the upper protrusion, and the upper anti-pull-out devices are convex edges arranged on the upper ends of the front and rear surfaces of the upper protrusion, and the shape of the convex edge is adapted to the shape of the V-shaped concave groove on the upper support, and the convex edge is clamped in the V-shaped concave groove on the upper support, and the upper anti-pull-out devices on both sides of the upper end of the upper protrusion are respectively clamped in the V-shaped concave grooves on both sides of the upper support, and the upper anti-pull-out devices are movably connected to the V-shaped concave grooves on both sides of the upper support. When there is no external force, the upper anti-pull-out device is located in the middle of the V-shaped concave groove of the upper support, and the relative position of the upper anti-pull-out device and the upper support remains fixed. When there is external force, the upper support moves back and forth along the slider.

[0013] Furthermore, the bottom surface of the upper anti-pullout device is V-shaped, and the top surface is an inverted V-shaped. The V-shape of the bottom and top surfaces of the upper anti-pullout device has the same slope as the V-shaped concave groove of the upper support, and the middle part of the bottom surface and the middle part of the top surface of the upper anti-pullout device are flat.

[0014] Furthermore, an upper surface groove is arranged on the top surface of the upper protrusion, and the upper surface groove may be one or more, and a first friction plate is arranged in the upper surface groove; a surface of the lower part of the upper anti-pull-out device facing the flat plate, and a surface of the upper part of the upper anti-pull-out device facing the upper support flat plate are both provided with side grooves, and a second friction plate is arranged in the side grooves; the thickness of the friction plate is greater than the groove depth of the upper surface groove or the side groove.

[0015] Furthermore, when the lower support is placed under the slider, the bottom plate of the lower support is fixed on a foundation set on the ground, and the side of the lower support with the V-shaped concave groove is placed upward; when the upper support is placed on the slider, the horizontal bottom plate of the upper support faces upward, and the side of the upper support with the V-shaped concave groove faces downward, and the upper support is inverted on the slider.

[0016] The beneficial effects of the utility model are:

[0017] 1. The friction pendulum seismic isolation support with anti-collision limit and anti-pullout devices in the utility model has a groove of a V-shaped surface with a bidirectional slope, and the slider slides on the V-shaped surface to achieve horizontal self-reset by gravity.

[0018] 2. The V-shaped concave groove of the friction pendulum isolation support of the utility model has a fixed bidirectional slope. Under the condition that the upper weight remains unchanged, the slider can slide from the top of the V-shape to the bottom of the V-shape under the action of gravity. Therefore, the V-shaped setting of the concave groove can provide a constant restoring force for the slider B, so that the slider can return to the lowest position of the V-shape, that is, the initial stable position.

[0019] 3. The anti-pullout device of the slider can only slide freely in the V-shaped concave groove of the support. The groove locks the slider up and down, and there is no large relative displacement between the slider and the support, thus realizing the anti-pullout function of the device.

[0020] 4. Anti-collision pads and limit end plates are set at the ends of the supports to limit the movement of the slider when the sliding support moves too much, thereby realizing the limit and anti-collision function of the device.

[0021] 5. The friction plate set on the slider can provide additional friction damping. The size of the friction plate can be adjusted according to the actual situation of the project, thereby adjusting the seismic isolation parameters of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0023] Figure 2 It is a three-dimensional assembly diagram of the lower support of the utility model.

[0024] Figure 3 It is a three-dimensional assembly diagram of the slider of the utility model.

[0025] In the figure: bottom plate 1, side plate 2, flat plate 2.1, pick ear 2.2, end plate 3, anti-collision pad 4, slider 5, lower anti-pullout device 5.1, upper anti-pullout device 5.2, upper protrusion 5.3, lower protrusion 5.4, V-shaped concave groove 6, upper surface groove 7, side groove 8, upper and lower surface friction plates 9, side friction plate 10, bolt hole 11; upper support C, slider B, lower support A. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described below with reference to the accompanying drawings.

[0027] like Figure 1 As shown, a friction pendulum seismic isolation bearing with anti-collision limit and anti-pullout devices includes a lower bearing A, a slider B and an upper bearing C; the lower bearing A and the upper bearing C have the same structure, the slider B is located between the lower bearing A and the upper bearing C, and the lower bearing A and the upper bearing C are cross-shaped in space; the lower bearing A and the upper bearing C are connected by a middle slider B, the lower part of the slider B is connected to the lower bearing A, and the upper part of the slider B is connected to the upper bearing C, the slider B moves between the lower bearing A and the upper bearing C, and the upper bearing A and the lower bearing C have mutually perpendicular degrees of freedom.

[0028] like Figure 2As shown, the lower support A includes a base plate 1, two side plates 2, two end plates 3 and two anti-collision pads 4. The lower support A is first provided with a base plate 1; a side plate 2 is respectively provided on both sides of the base plate 1, and the side plate 2 is connected to the base plate 1 by bolts through bolt holes 11 reserved at the bottom; an end plate 3 and an anti-collision pad 4 are respectively provided at both ends of the base plate 1, and the anti-collision pad 4 is arranged on the inner side of the end plate 3, and the end plate 3 and the anti-collision pad 4 are connected to the base plate 1 by bolts through bolt holes 11 reserved at the bottom. When the sliding support is displaced too much, the end plate 3 can limit the movement of the slider B, thereby realizing the limiting function of the device.

[0029] The bottom of the bottom plate 1 is set as a horizontal plane, the top of the bottom plate 1 is a V-shaped surface with a two-way slope, and the slopes of the top surface of the bottom plate 1 in both directions are set to be the same.

[0030] The side panel 2 is L-shaped as a whole, and includes a flat plate 2.1 and a lug 2.2. The bottom surface of the side panel 2 is horizontal, and the top surface is set as a V-shaped surface with a two-way slope. The side panel 2 includes a flat plate 2.1 and a lug 2.2 whose top surface is a V-shaped surface with a two-way slope; the flat plate 2.1 is vertically arranged, and the upper end of the flat plate 2.1 is set with a flange facing the inner side of the lower support A, and the flange is the lug 2.2.

[0031] The slope gradient and the slope change point of the top surface of the side plate 2 are the same as the slope gradient and the slope change point of the top surface of the bottom plate 1 .

[0032] Two side panels 2 are spliced ​​with the bottom panel 1. The side panels 2 are arranged on both sides of the support A. The ears 2.2 are at a certain distance from the surface of the bottom panel 1. A V-shaped concave groove 6 is formed between the top surface of the bottom panel 1 and the bottom surface of the ears 2.2.

[0033] like Figure 3 As shown, the slider B includes an upper protrusion 5.3 and a lower protrusion 5.4 located below the upper protrusion 5.3, and the upper protrusion 5.3 and the lower protrusion 5.4 are integrally formed.

[0034] The lower anti-pullout device 5.1 is arranged on the left and right sides of the lower protrusion 5.4. The lower anti-pullout device 5.1 is a convex edge arranged at the lower end of the side surface of the lower protrusion 5.4. The shape of the convex edge is adapted to the shape of the V-shaped concave groove 6. The convex edge is clamped in the V-shaped concave groove 6. The lower anti-pullout device 5.1 on both sides of the lower end of the lower protrusion 5.4, i.e., the convex edges, are respectively clamped in the V-shaped concave grooves 6 on both sides of the lower support A. The lower anti-pullout device 5.1, i.e., the convex edges, are movably connected with the V-shaped concave groove 6. When there is no external force, the lower anti-pullout device 5.1 is located in the middle of the V-shaped concave groove 6. At the same time, the relative position of the lower anti-pullout device 5.1 and the lower support A remains fixed. When there is external force, the lower anti-pullout device 5.1, i.e., the convex edge, moves back and forth along the V-shaped concave groove 6. Therefore, when there is external force, the slider B moves back and forth along the surface of the bottom plate 1 of the lower support A.

[0035] The lower anti-pullout device 5.1, i.e., the convex edge has a V-shaped bottom surface and an inverted V-shaped top surface. The V-shape of the bottom and top surfaces of the lower anti-pullout device 5.1 has the same slope as the V-shaped concave groove 6. The middle of the bottom and top surfaces of the convex edge are flat to facilitate the convex edge to slide along the V-shaped concave groove 6.

[0036] In order to facilitate the lower anti-pullout device 5.1, i.e. the convex edge, to be inserted into the V-shaped concave groove 6, a groove is provided between the lower anti-pullout device 5.1, i.e. the convex edge, and the top surface of the lower protrusion 5.4.

[0037] The slider B can only move along the length direction of the lower support A along the lug 2.2. Due to the restriction of the side plates 2.1 on both sides of the lower support A, the slider B cannot move along the width direction of the lower support A.

[0038] The lower support A and the upper support C have the same structure.

[0039] When the lower support A is placed under the slider B, the bottom plate 1 of the lower support A is fixed on a foundation set on the ground, and the side of the lower support A with the V-shaped concave groove 6 is placed upward; when the upper support C is placed on the slider B, the horizontal bottom plate of the upper support C faces upward, and the side of the upper support C with the V-shaped concave groove faces downward, that is, the upper support C is upside down on the slider B.

[0040] The upper anti-pullout device 5.2 is provided on the front and rear surfaces of the upper protrusion 5.3. The upper anti-pullout device 5.2 is a convex edge arranged on the upper ends of the front and rear surfaces of the upper protrusion 5.3. The shape of the convex edge is adapted to the shape of the V-shaped concave groove 6 on the upper support C. The convex edge is clamped in the V-shaped concave groove 6 on the upper support C. The upper anti-pullout device 5.2 on both sides of the upper end of the upper protrusion 5.3, i.e., the convex edges, are respectively clamped in the V-shaped concave groove 6 on both sides of the upper support C. The upper anti-pullout device 5.2, i.e., the convex edges, are movably connected with the V-shaped concave groove 6 on both sides of the upper support C. When there is no external force, the upper anti-pullout device 5.2 is located in the middle of the V-shaped concave groove 6 of the upper support C. At the same time, the relative position of the upper anti-pullout device 5.2 and the upper support C remains fixed. When there is external force, the upper support C moves back and forth along the upper anti-pullout device 5.2, i.e., the convex edge, i.e., when there is external force, the upper support C moves back and forth along the slider B.

[0041] The upper anti-pull-out device 5.2, i.e., the bottom surface of the convex edge is V-shaped, and the top surface is an inverted V-shaped. The V-shape of the bottom and top surfaces of the upper anti-pull-out device 5.2 has the same slope as the V-shaped concave groove 6 of the upper support C. The middle part of the bottom surface and the middle part of the top surface of the upper anti-pull-out device 5.2, i.e., the convex edge, is flat to facilitate the V-shaped concave groove 6 of the upper support C to slide along the convex edge.

[0042] In order to facilitate the upper anti-pullout device 5.2, i.e. the convex edge, to be inserted into the V-shaped concave groove 6 of the upper support C, a groove is provided between the upper and lower anti-pullout devices 5.2, i.e. the convex edge, and the bottom surface of the upper protrusion 5.3.

[0043] In the present invention, the top and bottom surfaces of the lower anti-pullout device 5.1 and the upper anti-pullout device 5.2 are both provided with bidirectional sloped V-shaped surfaces, and the slope gradient and slope change point are the same as the slope gradient and slope change point of the top surface of the bottom plate 1.

[0044] An upper surface groove 7 is arranged on the top surface of the upper protrusion 5.3, and the upper surface groove 7 may be one or more, and a first friction plate 9 is arranged in the upper surface groove 7; a side groove 8 is arranged on the surface of the lower anti-pullout device 5.1 facing the side plate 2, and a side groove 8 is arranged on the surface of the upper anti-pullout device 5.2 facing the side plate of the upper support C, and a second friction plate 10 is arranged in the side groove 8; the first friction plate 9 and the second friction plate 10 may be made of polytetrafluoroethylene or the like, and the thickness of the friction plate is slightly greater than the groove depth of the upper surface groove 7 or the side groove 8, and the friction plate and the support bottom plate can provide friction damping without affecting the relative sliding of the slider B and the support; the first friction plate 9 on the top surface of the upper protrusion 5.3 and the inner surface of the horizontal bottom plate of the upper support C, as well as the friction plate in the anti-pullout device and the inner wall of the side plate rub against each other, so as to realize sliding energy consumption, which is beneficial to buffering the sliding amplitude of the slider B.

[0045] In practical applications, electrical equipment such as flexible DC converter valves, DC circuit breakers, and bridge arm reactors include a mounting base, which is mounted on a base plate at the level of an upper support C by bolts, a reinforced concrete foundation is provided on the ground, and a lower support A is fixed to the foundation by anchor bolts. When there is no external force, the slider B is located at the bottom of the V-shape of the base plate 1. On the one hand, the weight of the electrical equipment is relatively large, and the pressure of the electrical equipment makes the slider B stably located at the lowest part of the V-shape of the base plate 1; on the other hand, the slider B is only in a state of being moved when there is an external force such as the ground. When the upper support C is vibrated, it will have the power to slide up the slope along the V-shaped concave groove 6. The slider B can only move along the length direction of the lower support A along the V-shaped concave groove 6. Due to the restrictions of the side plates 2.1 and the ears 2.2 on both sides of the lower support A, the slider B cannot move along the width direction of the lower support A. When there is external force, the external force causes the slider B to slide back and forth along the V-shaped concave groove 6, or the external force pushes the upper support C to slide back and forth along the slider B. The anti-pullout device of the slider B of the utility model can be tightly connected and slide freely in the V-shaped concave groove 6 of the support.

[0046] The V-shaped inner concave groove 6 of the friction pendulum seismic isolation support of the utility model has a fixed bidirectional slope. When the upper weight remains unchanged, under the action of gravity, the slider B can slide from the top of the V-shape to the bottom of the V-shape. Therefore, the V-shaped setting of the inner concave groove 6 can provide a constant restoring force for the slider B, so that the slider B can return to the lowest position of the V-shape, that is, the initial stable position.

[0047] The friction pendulum seismic isolation bearing of the utility model is firmly fixed on the foundation. The upper anti-pullout device 5.2 slides in the V-shaped concave groove 6 of the lower support, and the lower anti-pullout device 5.1 slides in the V-shaped concave groove 6 of the upper support. The groove locks the slider B up and down. There is no large relative displacement between the slider B and the friction pendulum seismic isolation bearing of the utility model, thereby realizing the anti-pullout function of the device.

[0048] In the present invention, an anti-collision pad 3 and a limiting end plate 3 are provided at the end of the support. When the sliding support moves too much, the anti-collision pad 3 and the limiting end plate 3 can limit the movement of the slider B, thereby realizing the limiting anti-collision function of the device of the utility model.

[0049] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0050] Finally, it should be noted that the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. The above description is only the preferred embodiment of the utility model and is not used to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the above embodiments, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A friction pendulum seismic isolation support with anti-collision limit and anti-pullout devices, characterized in that: The invention comprises a lower support (A), a slider (B) and an upper support (C); the lower support (A) and the upper support (C) have the same structure, the slider (B) is located between the lower support (A) and the upper support (C), and the lower support (A) and the upper support (C) are arranged in a cross shape; the lower part of the slider (B) is connected to the lower support (A), and the upper part of the slider (B) is connected to the upper support (C), and the slider (B) can move between the lower support (A) and the upper support (C).

2. The friction pendulum seismic isolation support with anti-collision limit and anti-pullout device according to claim 1 is characterized in that: The lower support (A) comprises a bottom plate (1), two side plates (2), two end plates (3) and two anti-collision pads (4); a side plate (2) is arranged on both sides of the bottom plate (1); an end plate (3) and an anti-collision pad (4) are arranged at both ends of the bottom plate (1); the anti-collision pad (4) is arranged on the inner side of the end plate (3); the bottom of the bottom plate (1) is arranged as a horizontal plane, and the top of the bottom plate (1) is a V-shaped surface with bidirectional slopes, and the slopes of the top surface of the bottom plate (1) in both directions are arranged to be the same.

3. The friction pendulum seismic isolation support with anti-collision limit and anti-pullout device according to claim 2 is characterized in that: The side plate (2) is L-shaped as a whole, the bottom surface of the side plate (2) is horizontal, the side plate (2) comprises a flat plate (2.1) and a lug (2.2) whose top surface is a V-shaped surface with a bidirectional slope, the flat plate (2.1) is vertically arranged, and the upper end of the flat plate (2.1) is provided with a flange facing the inner side of the lower support (A), and the flange is the lug (2.2); the slope gradient and the slope change point of the top surface of the side plate (2) are the same as the slope gradient and the slope change point of the top surface of the bottom plate (1); and a V-shaped concave groove (6) is provided between the top surface of the bottom plate (1) and the bottom surface of the lug (2.2).

4. The friction pendulum seismic isolation support with anti-collision limit and anti-pullout device according to claim 1 is characterized in that: The slider (B) comprises an upper protrusion (5.3) and a lower protrusion (5.4) located below the upper protrusion (5.3), and the upper protrusion (5.3) and the lower protrusion (5.4) are integrally formed.

5. The friction pendulum seismic isolation support with anti-collision limit and anti-pullout device according to claim 4 is characterized in that: The lower convex block (5.4) is provided with a lower anti-pullout device (5.1) on both sides. The lower anti-pullout device (5.1) is a convex edge provided at the lower end of the side surface of the lower convex block (5.4). The shape of the convex edge is adapted to the shape of the V-shaped concave groove (6). The convex edge is clamped in the V-shaped concave groove (6). The lower anti-pullout devices (5.1) on both sides of the lower end of the lower convex block (5.4) are respectively clamped in the V-shaped concave groove (6) on both sides of the lower support (A). The lower anti-pullout device (5.1) is movably connected to the V-shaped concave groove (6). When there is no external force, the lower anti-pullout device (5.1) is located in the middle of the V-shaped concave groove (6). The relative position of the lower anti-pullout device (5.1) and the lower support (A) remains fixed. When there is an external force, the lower anti-pullout device (5.1) moves back and forth along the V-shaped concave groove (6).

6. The friction pendulum seismic isolation support with anti-collision limit and anti-pullout device according to claim 5 is characterized in that: The bottom surface of the lower anti-pullout device (5.1) is V-shaped, and the top surface is inverted V-shaped. The V-shaped bottom surface and the top surface of the lower anti-pullout device (5.1) have the same slope as the V-shaped concave groove (6). The middle part of the convex bottom surface and the middle part of the top surface are flat.

7. The friction pendulum seismic isolation support with anti-collision limit and anti-pullout device according to claim 4 is characterized in that: The upper anti-pullout device (5.2) is arranged on the front and rear surfaces of the upper convex block (5.3). The upper anti-pullout device (5.2) is a convex edge arranged on the upper ends of the front and rear surfaces of the upper convex block (5.3). The shape of the convex edge is matched with the shape of the V-shaped concave groove (6) on the upper support (C). The convex edge is clamped in the V-shaped concave groove (6) on the upper support (C). The upper anti-pullout devices (5.2) on both sides of the upper end of the upper convex block (5.3) are respectively The upper anti-pullout device (5.2) is clamped in the V-shaped concave grooves (6) on both sides of the upper support (C), and is movably connected to the V-shaped concave grooves (6) on both sides of the upper support (C). When there is no external force, the upper anti-pullout device (5.2) is located in the middle of the V-shaped concave grooves (6) of the upper support (C), and the relative position of the upper anti-pullout device (5.2) and the upper support (C) remains fixed. When there is an external force, the upper support (C) moves back and forth along the slider (B).

8. The friction pendulum seismic isolation support with anti-collision limit and anti-pullout device according to claim 7 is characterized in that: The bottom surface of the upper anti-pullout device (5.2) is V-shaped, and the top surface is inverted V-shaped. The V-shape of the bottom and top surfaces of the upper anti-pullout device (5.2) has the same slope as the V-shaped inner concave groove (6) of the upper support (C). The middle part of the bottom surface and the middle part of the top surface of the upper anti-pullout device (5.2) are flat.

9. The friction pendulum seismic isolation support with anti-collision limit and anti-pullout device according to claim 7 is characterized in that: An upper surface groove (7) is arranged on the top surface of the upper protrusion (5.3), and a first friction plate (9) is arranged in the upper surface groove (7); a side groove (8) is arranged on the surface of the lower part of the upper anti-pullout device (5.2) facing the flat plate (2.1), and a side groove (8) is arranged on the surface of the upper part of the upper anti-pullout device (5.2) facing the upper support (C) flat plate; a second friction plate (10) is arranged in the side groove (8); the thickness of the friction plate is greater than the groove depth of the upper surface groove (7) or the side groove (8).

10. The friction pendulum seismic isolation support with anti-collision limit and anti-pullout device according to claim 1, characterized in that: When the lower support (A) is placed under the slider (B), the bottom plate (1) of the lower support (A) is fixed on a foundation set on the ground, and the side of the lower support (A) provided with the V-shaped concave groove (6) is placed upward; when the upper support (C) is placed on the slider (B), the horizontal bottom plate of the upper support (C) faces upward, and the side of the upper support (C) provided with the V-shaped concave groove faces downward, and the upper support (C) is inverted on the slider (B).

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