Anti-separation type friction pendulum shock insulation support

Abstract

The utility model relates to an anti-separation type friction pendulum shock insulation support, belongs to the technical field of building shock insulation, and solves the problems that a friction pendulum shock insulation support in the prior art is poor in anti-separation effect and inconvenient to maintain. The anti-yaw device comprises an upper seat plate, a lower seat plate, a spherical crown body and a first elastic unit, the upper seat plate can be connected with a building body, the lower seat plate can be connected with a foundation body, the spherical crown body is arranged between the upper seat plate and the lower seat plate, and the upper seat plate, the lower seat plate and the spherical crown body are used for slowing down yaw of the building body during an earthquake; and the first elastic unit enables the lower seat plate to be always connected with the spherical crown body. The first elastic unit is arranged on the lower seat plate and used for pushing the lower seat plate, so that the lower seat plate is always kept connected with the spherical crown body, the spherical crown body is prevented from colliding with the lower seat plate, pits in a friction surface are prevented from being formed, uneven friction coefficient distribution is avoided, the horizontal action effect of each shock insulation support is kept, and building safety is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of building seismic isolation, in particular to an anti-separation type friction pendulum seismic isolation support. Background Art

[0002] The friction pendulum isolation bearing has the unique advantages of the isolation period not being affected by gravity load, reliable performance, easy to control product quality, and automatic reset after earthquake, and is being used more and more widely. When a large vertical earthquake component occurs, the upper bearing plate and lower bearing plate of the friction pendulum isolation bearing will separate from the spherical crown, causing the spherical crown to jump, which will cause the spherical friction plate to collide with the spherical PTFE plate, pits to appear on the friction surface, uneven distribution of friction coefficient, and change the horizontal effect of each bearing, endangering the safety of the building.

[0003] The existing methods to solve the problem of friction pendulum bearing separation are to set a tensile device or a spring device inside the spherical crown. Among them, the former method will preset a certain gap to ensure the normal operation of the friction pendulum, resulting in poor anti-separation effect and cannot fully match the isolation period of the friction pendulum isolation bearing; the latter method uses a spring device set at the center of the spherical crown to lift the spherical crown to achieve the purpose of anti-separation, but the anti-separation device is set inside the friction pendulum, which destroys the overall structural integrity of the friction pendulum bearing, increases product stability and risk factors, and is not convenient for later debugging and maintenance, and cannot solve the problem well.

[0004] Therefore, there is an urgent need for an anti-separation type friction pendulum seismic isolation bearing to solve the problems of poor anti-separation effect and inconvenient later debugging and maintenance of the friction pendulum seismic isolation bearing in the prior art. Utility Model Content

[0005] In view of the above analysis, the embodiment of the utility model aims to provide an anti-separation type friction pendulum isolation bearing to solve the problems of poor anti-separation effect of the friction pendulum isolation bearing in the prior art and inconvenient subsequent debugging and maintenance.

[0006] The purpose of this utility model is mainly achieved through the following technical solutions:

[0007] An anti-separation type friction pendulum seismic isolation bearing comprises an upper seat plate, a lower seat plate, a spherical crown body and a first elastic unit, wherein the upper seat plate can be connected to a building main body, the lower seat plate can be connected to a foundation main body, the spherical crown body is arranged between the upper seat plate and the lower seat plate, and the upper seat plate, the lower seat plate and the spherical crown body are used to slow down the lateral swing of the building main body during an earthquake; the first elastic unit is arranged on the lower seat plate, and the first elastic unit is used to push the lower seat plate so that the lower seat plate always remains connected to the spherical crown body, thereby avoiding collision between the spherical crown body and the lower seat plate or the upper seat plate;

[0008] The first elastic unit includes a plurality of elastic body components, and the elastic body components are composed of two permanent magnets, and the two permanent magnets are mutually exclusive. The two mutually exclusive permanent magnets ensure that the lower seat plate can maintain the connection with the spherical crown body for a long time.

[0009] Furthermore, it also includes a first elastic body groove, which is arranged on the lower seat plate and is used to accommodate the first elastic unit.

[0010] Furthermore, there are multiple first elastic body grooves, which are evenly distributed around the circumference of the spherical crown, and an elastic body component is arranged in each first elastic body groove.

[0011] Furthermore, it also includes a first limiting unit, a first support plate and a first fixing bolt. The first support plate is fixedly arranged on the base body. The first limiting unit is connected to the first support plate through the first fixing bolt. The first limiting unit is used to limit the lower seat plate to prevent the lower seat plate from moving laterally.

[0012] Furthermore, the first limiting unit includes a movable limiting plate and a fixed limiting plate, the movable limiting plate is fixedly connected to the lower seat plate, and the fixed limiting plate is fixedly connected to the first support plate via a first fixing bolt.

[0013] Furthermore, a sliding groove is provided on the fixed limiting plate, and the movable limiting plate can slide in the sliding groove. The sliding groove enables the lower seat plate to move only vertically and cannot rotate circumferentially.

[0014] Furthermore, it also includes a first sliding pair, which includes an upper sliding plate and a first convex sliding plate. The upper sliding plate is arranged on the upper seat plate, and the first convex sliding plate is arranged at one end of the spherical crown body. The first convex sliding plate can be connected to the upper sliding plate. The first sliding pair is used to isolate the upper seat plate and the spherical crown body to prevent direct sliding friction between the upper seat plate and the spherical crown body.

[0015] Furthermore, it also includes a second sliding pair, which includes a lower sliding plate and a second convex sliding plate. The lower sliding plate is arranged on the lower seat plate, and the second convex sliding plate is arranged on the other end of the spherical crown body. The second convex sliding plate can be connected to the lower sliding plate.

[0016] Furthermore, it also includes a second elastic unit and a second elastic groove, the second elastic groove is arranged on the upper seat plate, and the second elastic unit is arranged in the second elastic groove; the second elastic groove has the same structure as the first elastic groove, and the second elastic unit has the same structure as the first elastic unit.

[0017] Furthermore, it also includes a second limiting unit, a second support plate and a second fixing bolt. The second support plate is fixedly arranged on the building body, and the second limiting unit is connected to the second support plate through the second fixing bolt. The structure of the second limiting unit is the same as that of the first limiting unit. The second limiting unit is used to limit the upper seat plate to prevent the upper seat plate from moving laterally.

[0018] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0019] (1) The first elastic unit of the utility model is arranged on the lower seat plate, and the first elastic unit is used to push the lower seat plate, so that the lower seat plate always remains connected with the spherical crown body, avoids collision between the spherical crown body and the lower seat plate, prevents pits from appearing on the friction surface, and causes uneven distribution of the friction coefficient, thereby maintaining the horizontal effect of each seismic isolation support and ensuring the safety of the building;

[0020] (2) The utility model has a plurality of first elastic grooves, which are evenly distributed around the circumference of the spherical crown. The evenly distributed plurality of first elastic grooves are used to evenly distribute the force of the first elastic unit pushing the lower seat plate;

[0021] (3) The elastic body component of the seismic isolation bearing of the utility model is composed of two permanent magnets, and the two permanent magnets are mutually exclusive. The two mutually exclusive permanent magnets can maintain the elasticity of the first elastic unit for a long time, thereby ensuring that the lower seat plate can maintain the connection with the spherical crown body for a long time; when the first elastic unit is maintained, only the spherical crown body needs to be removed to maintain the lower seat plate and the first elastic unit, and there is no need to set a spring device at the center position of the spherical crown body, thereby ensuring the integrity of the overall structure of the friction pendulum bearing and facilitating subsequent debugging and maintenance;

[0022] (4) The first limiting unit of the utility model is used to limit the lower seat plate to prevent the lower seat plate from moving laterally; the first support plate is used to strengthen the rigidity of the base body and facilitate the support of the lower seat plate; the sliding groove enables the lower seat plate to move only vertically and cannot rotate circumferentially, ensuring that the relative positions of the two permanent magnets of the elastomer assembly remain unchanged, thereby ensuring the structural stability of the seismic isolation support of this embodiment.

[0023] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the following content, and some advantages can be obvious from the description or understood by implementing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the contents specifically pointed out in the text and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0025] Figure 1 It is a schematic diagram of the overall structure of the seismic isolation support of Example 1;

[0026] Figure 2 is a schematic diagram of the cross-sectional structure of the lower seat plate;

[0027] Figure 3 This is a schematic diagram of the overall structure of the seismic isolation bearing of Example 2.

[0028] Reference numerals:

[0029] 1-upper seat plate; 2-lower seat plate; 3-spherical crown; 4-first elastic unit; 5-first elastic body groove; 6-first limiting unit; 7-first supporting plate; 8-first fixing bolt; 9-first sliding pair; 10-second sliding pair; 11-second elastic unit; 12-second limiting unit; 13-second supporting plate; 14-second fixing bolt; 61-movable limiting plate; 62-fixed limiting plate. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0031] Example 1

[0032] A specific embodiment of the utility model is as follows Figure 1 As shown, an anti-separation type friction pendulum seismic isolation bearing (hereinafter referred to as the seismic isolation bearing) is disclosed, including an upper seat plate 1, a lower seat plate 2, a spherical crown 3 and a first elastic unit 4. The upper seat plate 1 can be connected to the building body 100, and the lower seat plate 2 can be connected to the foundation body 200. The spherical crown 3 is arranged between the upper seat plate 1 and the lower seat plate 2. During an earthquake, the upper seat plate 1, the lower seat plate 2 and the spherical crown 3 are used to slow down the lateral swing of the building; the first elastic unit 4 is arranged on the lower seat plate 2, and the first elastic unit 4 is used to push the lower seat plate 2 so that the lower seat plate 2 always remains connected to the spherical crown 3, avoids the spherical crown 3 from colliding with the lower seat plate 2 or the upper seat plate 1, prevents the friction surface from having potholes, resulting in uneven distribution of the friction coefficient, maintains the horizontal effect of each seismic isolation bearing, and ensures the safety of the building.

[0033] Preferably, the upper seat plate 1 and the lower seat plate 2 are both circular plates, the bottom surface of the upper seat plate 1 is a concave arc surface, the top surface of the lower seat plate 2 is an upper concave arc surface, the spherical crown body 3 is a cylinder, the top surface of the spherical crown body 3 is an upper convex arc surface, and the bottom surface of the spherical crown body 3 is a lower convex arc surface. The curvature of the lower concave arc surface, the upper concave arc surface, the upper convex arc surface and the lower convex arc surface are all the same. The upper seat plate 1 and the lower seat plate 2 are coaxial with the spherical crown body 3.

[0034] Preferably, if Figure 2 As shown, the seismic isolation support of this embodiment further includes a first elastic body groove 5, which is arranged on the lower seat plate 2 and is used to accommodate the first elastic unit 4. There are multiple first elastic body grooves 5, which are evenly distributed around the circumference of the spherical crown 3, and the evenly distributed multiple first elastic body grooves 5 are used to evenly distribute the force of the first elastic unit 4 pushing the lower seat plate 2.

[0035] Preferably, the first elastic unit 4 includes a plurality of elastic body components, one elastic body component is arranged in each first elastic body groove 5, and the elastic body component is composed of two permanent magnets, and the two permanent magnets are arranged to repel each other, and the two mutually repelling permanent magnets can maintain the elasticity of the first elastic unit 4 for a long time, thereby ensuring that the lower seat plate 2 can maintain the connection with the spherical crown body 3 for a long time. When the first elastic unit 4 is maintained, only the spherical crown body 3 needs to be removed to maintain the lower seat plate 2 and the first elastic unit 4, and there is no need to set a spring device at the center position of the spherical crown body 3, thereby ensuring the integrity of the overall structure of the friction pendulum support and facilitating the subsequent debugging and maintenance.

[0036] Preferably, if Figure 1 and Figure 2 As shown, the seismic isolation bearing of this embodiment also includes a first limiting unit 6, a first support plate 7 and a first fixing bolt 8. The first support plate 7 is fixedly arranged on the basic body 200. The first limiting unit 6 is connected to the first support plate 7 through the first fixing bolt 8. The first limiting unit 6 is used to limit the lower seat plate 2 to prevent the lower seat plate 2 from moving laterally; the first support plate 7 is used to strengthen the rigidity of the basic body 200 and facilitate the support of the lower seat plate 2.

[0037] Preferably, the first limiting unit 6 includes a movable limiting plate 61 and a fixed limiting plate 62, the movable limiting plate 61 is fixedly connected to the lower seat plate 2, and the fixed limiting plate 62 is fixedly connected to the first support plate 7 by a first fixing bolt 8. A sliding groove (not shown in the figure) is provided on the fixed limiting plate 62, and the movable limiting plate 61 can slide in the sliding groove. The sliding groove enables the lower seat plate 2 to move only vertically and cannot rotate circumferentially, ensuring that the relative positions of the two permanent magnets of the elastomer assembly remain unchanged, and ensuring the structural stability of the seismic isolation bearing of this embodiment.

[0038] Preferably, the seismic isolation bearing of this embodiment also includes a first sliding pair 9, which includes an upper sliding plate and a first convex sliding plate. The upper sliding plate is arranged on the upper seat plate 1, and the first convex sliding plate is arranged at one end of the spherical crown body 3. The first convex sliding plate can be connected to the upper sliding plate. The first sliding pair 9 is used to isolate the upper seat plate 1 and the spherical crown body 3 to prevent direct sliding friction between the upper seat plate 1 and the spherical crown body 3, thereby protecting the outer surfaces of the upper seat plate 1 and the spherical crown body 3.

[0039] Preferably, the seismic isolation bearing of this embodiment also includes a second sliding pair 10, the second sliding pair 10 includes a lower sliding plate and a second convex sliding plate, the lower sliding plate is arranged on the lower seat plate 2, and the second convex sliding plate is arranged at the other end of the spherical crown body 3, the second convex sliding plate can be connected to the lower sliding plate, and the second sliding pair 10 is used to isolate the lower seat plate 2 and the spherical crown body 3 to prevent direct sliding friction between the lower seat plate 2 and the spherical crown body 3, thereby protecting the outer surfaces of the lower seat plate 2 and the spherical crown body 3.

[0040] Preferably, the upper sliding plate and the lower sliding plate are both stainless steel plates, the first convex sliding plate and the second convex sliding plate are both polytetrafluoroethylene plates, the friction coefficient between the stainless steel plate and the polytetrafluoroethylene plate is low, the first sliding pair 9 and the second sliding pair 10 can reduce the friction force between the upper seat plate 1, the lower seat plate 2 and the spherical crown 3, improve the friction swing response speed, and are more conducive to improving the operating efficiency of the seismic isolation bearing of this embodiment.

[0041] Example 2

[0042] Another specific embodiment of the utility model is as follows Figure 3 As shown, the upper base plate 1 and the building body 100 of Example 1 are improved so that the upper base plate 1 and the spherical crown body 3 can also always remain connected.

[0043] On the basis of Example 1, the seismic isolation bearing of this embodiment also includes a second elastic unit 11 and a second elastomer groove (not shown in the figure), the second elastomer groove is arranged on the upper seat plate 1, and the second elastic unit 11 is arranged in the second elastomer groove; the second elastomer groove has the same structure as the first elastomer groove 5, and the second elastic unit 11 has the same structure as the first elastic unit 4, and the second elastic unit 11 is used to enable the upper seat plate 1 to maintain connection with the spherical crown 3 for a long time.

[0044] Preferably, the seismic isolation bearing of this embodiment also includes a second limiting unit 12, a second support plate 13 and a second fixing bolt 14. The second support plate 13 is fixedly arranged on the building body 100, and the second limiting unit 12 is connected to the second support plate 13 through the second fixing bolt 14; the structure of the second limiting unit 12 is the same as that of the first limiting unit 6, and the second limiting unit 12 is used to limit the upper seat plate 1 to prevent the upper seat plate 1 from moving laterally; the second support plate 13 is used to strengthen the rigidity of the building body 100 to prevent the upper seat plate 1 from causing bumps and damage to the building body 100.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-separation friction pendulum seismic isolation bearing, characterized in that: The invention comprises an upper seat plate (1), a lower seat plate (2), a spherical crown body (3) and a first elastic unit (4); the upper seat plate (1) can be connected to a building body (100); the lower seat plate (2) can be connected to a foundation body (200); the spherical crown body (3) is arranged between the upper seat plate (1) and the lower seat plate (2); the upper seat plate (1), the lower seat plate (2) and the spherical crown body (3) are used to slow down the lateral swing of the building body (100); the first elastic unit (4) is arranged on the lower seat plate (2); the first elastic unit (4) is used to push the lower seat plate (2) so that the lower seat plate (2) always remains connected to the spherical crown body (3) to avoid collision between the spherical crown body (3) and the lower seat plate (2) or the upper seat plate (1); The first elastic unit (4) comprises a plurality of elastic body components, wherein the elastic body components are composed of two permanent magnets, and the two permanent magnets are arranged to repel each other. The two mutually repelling permanent magnets ensure that the lower seat plate (2) can maintain a connection with the spherical crown (3) for a long time.

2. The anti-separation friction pendulum seismic isolation bearing according to claim 1, characterized in that: It also comprises a first elastic body groove (5), which is arranged on the lower seat plate (2) and is used to accommodate the first elastic unit (4).

3. The anti-separation friction pendulum seismic isolation bearing according to claim 2, characterized in that: There are a plurality of first elastic body grooves (5) which are evenly distributed around the circumference of the spherical cap (3), and an elastic body component is arranged in each first elastic body groove (5).

4. The anti-separation friction pendulum seismic isolation bearing according to claim 1, characterized in that: It also includes a first limiting unit (6), a first supporting plate (7) and a first fixing bolt (8); the first supporting plate (7) is fixedly arranged on the base body (200); the first limiting unit (6) is connected to the first supporting plate (7) via the first fixing bolt (8); the first limiting unit (6) is used to limit the lower seat plate (2) to prevent the lower seat plate (2) from moving laterally.

5. The anti-separation friction pendulum seismic isolation bearing according to claim 4, characterized in that: The first limiting unit (6) comprises a movable limiting plate (61) and a fixed limiting plate (62); the movable limiting plate (61) is fixedly connected to the lower seat plate (2); and the fixed limiting plate (62) is fixedly connected to the first support plate (7) via a first fixing bolt (8).

6. The anti-separation friction pendulum seismic isolation bearing according to claim 5, characterized in that: The fixed limiting plate (62) is provided with a sliding groove, and the movable limiting plate (61) can slide in the sliding groove. The sliding groove enables the lower seat plate (2) to move only vertically and cannot rotate circumferentially.

7. The anti-separation friction pendulum seismic isolation bearing according to claim 1, characterized in that: It also includes a first sliding pair (9), which includes an upper sliding plate and a first convex sliding plate. The upper sliding plate is arranged on the upper seat plate (1), and the first convex sliding plate is arranged at one end of the spherical crown body (3). The first convex sliding plate can be connected to the upper sliding plate. The first sliding pair (9) is used to isolate the upper seat plate (1) and the spherical crown body (3) to prevent direct sliding friction between the upper seat plate (1) and the spherical crown body (3).

8. The anti-separation friction pendulum seismic isolation bearing according to claim 7, characterized in that: It also includes a second sliding pair (10), which includes a lower sliding plate and a second convex sliding plate. The lower sliding plate is arranged on the lower seat plate (2), and the second convex sliding plate is arranged at the other end of the spherical crown (3). The second convex sliding plate can be connected to the lower sliding plate.

9. The anti-separation friction pendulum seismic isolation support according to claim 3, characterized in that: It also includes a second elastic unit (11) and a second elastic body groove, wherein the second elastic body groove is arranged on the upper seat plate (1), and the second elastic unit (11) is arranged in the second elastic body groove; the second elastic body groove has the same structure as the first elastic body groove (5), and the second elastic unit (11) has the same structure as the first elastic unit (4).

10. The anti-separation friction pendulum seismic isolation bearing according to claim 6, characterized in that: It also comprises a second limiting unit (12), a second supporting plate (13) and a second fixing bolt (14); the second supporting plate (13) is fixedly arranged on the building body (100); the second limiting unit (12) is connected to the second supporting plate (13) via the second fixing bolt (14); the structure of the second limiting unit (12) is the same as that of the first limiting unit (6); the second limiting unit (12) is used to limit the upper seat plate (1) to prevent the upper seat plate (1) from moving laterally.

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