Anti-overturning friction pendulum isolation bearing

Abstract

This invention discloses an anti-overturning friction pendulum seismic isolation bearing. The invention relates to the field of seismic isolation bearings and includes a lower bearing plate. An upper bearing plate is provided at the upper end of the lower bearing plate. A sliding body is installed between the lower and upper bearing plates. An upper friction plate and a lower friction plate are fixedly installed at the upper end of the lower bearing plate and the lower end of the upper bearing plate, respectively. Wear-resistant plates are fixedly provided at both the upper and lower ends of the sliding body. A limiting structure is provided at the upper end of the upper bearing plate. The limiting structure includes a fixing plate, and a cross rod is fixedly provided at the upper end of the fixing plate. An mounting plate is provided at the upper end of the cross rod, and the mounting plate is installed to the cross rod by screws. A fixing frame is fixedly installed on the outer wall of the lower bearing plate. By setting a limiting structure, this invention can achieve elastic limiting when the upper bearing plate shakes to its maximum amplitude, preventing the upper bearing plate from directly separating from the lower bearing plate.

Description

Technical Field

[0001] This invention relates to the field of seismic isolation bearings, and particularly to an anti-overturning friction pendulum seismic isolation bearing. Background Technology

[0002] Seismic isolation bearings are devices used to reduce vibration and isolate building structures. They are designed to reduce the impact of earthquakes or other external forces on buildings, improving their seismic performance. Seismic isolation bearings typically consist of two parts: an upper bearing and a lower bearing. Their function is to absorb and disperse seismic energy, reducing the impact of seismic forces on the building. This helps protect the building and its internal equipment from damage and provides a safer environment.

[0003] Chinese patent publication number CN211037378U discloses an anti-overturning friction pendulum seismic isolation bearing. When tension is generated, the tension is transmitted from the upper part of the sphere to the inner wall of the spherical hinge cover plate. Since the upper part of the sphere of the spherical hinge body and the inner wall of the spherical hinge cover plate are in spherical contact, the upper part of the upper part of the sphere of the spherical hinge body and the inner wall of the spherical hinge cover plate form a rotating spherical surface. The top of the spherical hinge cover plate is provided with a through hole larger than the diameter of the column head, allowing the column head to swing freely within the through hole. When the bearing experiences changes in tension and movement, the angle between the axes of the upper and lower pendulum bodies changes with the displacement. The tension borne by the upper support plate always points downwards towards the center of the sphere, thereby maintaining the stability of the building above the upper support plate and preventing overturning. However, when the building connected to the upper support plate shakes, there is a possibility that the building may pull the upper support plate, causing it to detach and fall off the lower support plate. Therefore, this invention proposes an anti-overturning friction pendulum seismic isolation bearing. Summary of the Invention

[0004] The main objective of this invention is to provide an anti-overturning friction pendulum seismic isolation bearing, which can effectively solve the technical problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An anti-overturning friction pendulum vibration isolation bearing includes a lower base plate, an upper base plate at the upper end of the lower base plate, a sliding body installed between the lower and upper base plates, an upper friction plate and a lower friction plate fixedly installed at the upper end of the lower base plate and the lower end of the upper base plate, respectively, wear-resistant plates fixedly installed at both the upper and lower ends of the sliding body, a limiting structure provided at the upper end of the upper base plate, the limiting structure including a fixing plate, a cross rod fixedly installed at the upper end of the fixing plate, an mounting plate provided at the upper end of the cross rod, and the mounting plate being installed to the cross rod by screws, a fixing frame fixedly installed on the outer wall of the lower base plate, limiting blocks provided on both sides of the upper end of the fixing frame, a limiting rod provided on one side of the limiting block, one end of the limiting rod being located at the lower end of the mounting plate, buffer boxes installed on both sides of the lower base plate, the lower end of the limiting block extending into the interior of the buffer box and fixedly installed with a connecting rod, a limiting spring fixedly installed on one side of the connecting rod, and a removal plate fixedly installed on one side of the limiting spring.

[0007] As a further embodiment of the present invention, a protective structure is provided on one side of the cross bar. The protective structure includes two sets of vertical plates. A first protective spring is fixedly installed on one side of the vertical plate. An arc-shaped plate is fixedly installed on the end of the first protective spring near the limiting rod. A sliding rod is movably arranged inside the mounting plate. A rectangular plate is fixedly arranged on the side of the sliding rod near the limiting rod. A second protective spring is sleeved on the outer wall of the sliding rod. A roller is rotatably installed on the inner wall of one side of the limiting rod.

[0008] As a further embodiment of the present invention, a rotating groove is provided at the lower end of the lower seat plate, and a dismantling structure is provided inside the rotating groove. The dismantling structure includes a dismantling screw, and threaded sleeves are threadedly installed at both ends of the dismantling screw. One end of the threaded sleeve is rotatably connected to the dismantling plate, and an anti-slip rod is fixedly provided on the outer wall of the middle part of the dismantling screw.

[0009] As a further embodiment of the present invention, a slot is provided on one side of the removal plate, and the slot is located on the outer wall of one side of the fixing frame.

[0010] As a further embodiment of the present invention, a locking structure is installed on the outer wall of the upper seat plate. The locking structure includes a circular plate, and a movable plate is movably sleeved on the outer wall of the upper seat plate. Locking screws are threadedly installed on both sides of the circular plate. The upper ends of the locking screws are rotatably connected to the movable plate. A locking rod is fixedly installed on both sides of the upper end of the movable plate. A locking hole is opened at the lower end of the limiting rod. The upper end of the locking rod passes through the holes on both sides of the fixed plate and enters the interior of the locking hole.

[0011] As a further embodiment of the present invention, the upper end of the mounting plate is provided with a plurality of reserved holes in an annular shape, and the upper end of the mounting plate is provided with a hidden groove, and the screw is located inside the hidden groove.

[0012] As a further embodiment of the present invention, the front end of the lower base plate is provided with a control groove, the rear end of the control groove extends into the interior of the rotation groove, and four ear plates are fixedly installed in a ring on the outer wall of the lower base plate.

[0013] As a further embodiment of the present invention, the internal thread of the limiting block is provided with a locking knob, and the upper end of the fixing frame is provided with a threaded hole, the output end of the locking knob entering the interior of the threaded hole.

[0014] As a further embodiment of the present invention, the limiting rod is L-shaped and the limiting rod is made of titanium alloy.

[0015] The beneficial effects of this invention are as follows:

[0016] By setting a limiting structure, when the building above the upper seat plate shakes, the shaking force of the upper seat plate will drive the cross rod to move. The shaking force of the upper seat plate will push the limiting rod, thereby making the limiting rod elastically limit the upper seat plate as a whole, preventing the building carrying the upper seat plate from shaking violently and directly causing the upper seat plate to separate from the lower seat plate, thus ensuring the normal use of the equipment.

[0017] By setting up a protective structure, when the building moves the upper seat plate laterally and longitudinally, the arc-shaped plate and rectangular plate on one side of the cross bar will contact the roller on one side of the limit bar in sequence according to the swaying path. Since the arc-shaped plate is equipped with a first protective spring, the first protective spring can play a buffering role, avoiding the cross bar from directly contacting the roller and causing a strong impact on the limit bar, thus protecting and buffering the limit bar.

[0018] By setting up a disassembly structure, when it is necessary to separate the upper seat plate and the lower seat plate for maintenance, by rotating the anti-slip rod, the threaded sleeves at both ends of the disassembly screw move to both sides simultaneously, thereby moving the disassembly plate to both sides. This causes the limiting spring on one side of the disassembly plate to extend, and the limiting spring, along with the connecting rod and the limiting block, moves to one side, thereby pulling the limiting rod out from the lower end of the mounting plate. This allows for quick removal of the mounting rod, making it convenient for operators to separate and disassemble the upper seat plate and the lower seat plate for maintenance later.

[0019] By setting a locking structure, when the entire lower seat plate is moved and carried, the locking screw is rotated, which causes the movable plate to move upward on the outer wall of the upper seat plate. This allows the locking rod to enter the inner wall of the limiting rod and lock into the locking hole at the lower end of the limiting rod, thus quickly and securely locking the limiting rod to the upper seat plate and preventing the upper seat plate from shaking during movement.

[0020] By setting a threaded knob and a threaded hole, when the device is placed, the threaded knob is rotated into the threaded hole to achieve a threaded connection between the threaded knob and the fixed frame, thereby ensuring a stable and secure connection between the limit block and the fixed frame. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an anti-overturning friction pendulum seismic isolation support according to the present invention;

[0022] Figure 2 This is a main sectional view of the lower and upper seat plates of an anti-overturning friction pendulum seismic isolation bearing according to the present invention.

[0023] Figure 3 This is a split view of the mounting plate and cross rod of an anti-overturning friction pendulum seismic isolation bearing according to the present invention;

[0024] Figure 4 This is a partial front view of an anti-overturning friction pendulum seismic isolation support according to the present invention;

[0025] Figure 5 This is a structural diagram of a limiting block for an anti-overturning friction pendulum seismic isolation support according to the present invention;

[0026] Figure 6 This is a partial cross-sectional view of the buffer box of an anti-overturning friction pendulum vibration isolation support according to the present invention;

[0027] Figure 7 This is a diagram showing the connection between the fixing plate and the limiting block of an anti-overturning friction pendulum vibration isolation support according to the present invention;

[0028] Figure 8 for Figure 7 Enlarged structural diagram at point A in the middle;

[0029] Figure 9 This is a bottom structural diagram of the lower seat plate of an anti-overturning friction pendulum seismic isolation support according to the present invention;

[0030] Figure 10 This is a structural diagram of the limiting rod of the anti-overturning friction pendulum seismic isolation support of the present invention during disassembly;

[0031] Figure 11 This is a cross-sectional view of the threaded sleeve of an anti-overturning friction pendulum vibration isolation support according to the present invention;

[0032] Figure 12 for Figure 4 Enlarged structural diagram at point B in the image.

[0033] In the diagram: 1. Lower seat plate; 2. Upper seat plate; 3. Sliding body; 4. Upper friction plate; 5. Lower friction plate; 6. Wear-resistant plate; 7. Limiting structure; 8. Fixing plate; 9. Cross rod; 10. Mounting plate; 11. Fixing frame; 12. Limiting block; 13. Limiting rod; 14. Connecting rod; 15. Buffer box; 16. Limiting spring; 17. Removal plate; 18. Protective structure; 19. Vertical plate; 20. First protective spring; 21. Arc plate; 22. Roller; 23. Sliding rod; 24. Rectangular plate; 25. Second protective spring; 26. Removal structure; 27. Removal screw; 28. Threaded sleeve; 29. ​​Rotating groove; 30. Anti-slip rod; 31. Slot; 32. Locking structure; 33. Round plate; 34. Movable plate; 35. Locking screw; 36. Locking rod; 37. Reserved hole; 38. Ear plate; 39. Control groove. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] like Figures 1-12 As shown, an anti-overturning friction pendulum vibration isolation bearing includes a lower base plate 1, an upper base plate 2 at the upper end of the lower base plate 1, a sliding body 3 installed between the lower base plate 1 and the upper base plate 2, an upper friction plate 4 and a lower friction plate 5 respectively fixedly installed at the upper end of the lower base plate 1 and the lower end of the upper base plate 2, wear-resistant plates 6 fixedly installed at both the upper and lower ends of the sliding body 3, a limit structure 7 is provided at the upper end of the upper base plate 2, the limit structure 7 includes a fixing plate 8, and a cross rod 9 is fixedly installed at the upper end of the fixing plate 8, and an mounting plate 10 is provided at the upper end of the cross rod 9. 10 is installed with screws and cross rod 9. A fixing frame 11 is fixedly installed on the outer wall of the lower base plate 1. Limiting blocks 12 are provided on both sides of the upper end of the fixing frame 11. A limiting rod 13 is provided on one side of the limiting block 12. One end of the limiting rod 13 is located at the lower end of the mounting plate 10. Buffer boxes 15 are installed on both sides of the lower base plate 1. The lower end of the limiting block 12 extends into the interior of the buffer box 15 and is fixedly installed with a connecting rod 14. A limiting spring 16 is fixedly installed on one side of the connecting rod 14. A removal plate 17 is fixedly installed on one side of the limiting spring 16.

[0036] In this embodiment, a protective structure 18 is provided on one side of the cross bar 9. The protective structure 18 includes two sets of vertical plates 19. A first protective spring 20 is fixedly installed on one side of the vertical plate 19. An arc-shaped plate 21 is fixedly installed on one end of the first protective spring 20 near the limiting rod 13. A sliding rod 23 is movably arranged inside the mounting plate 10. A rectangular plate 24 is fixedly arranged on the side of the sliding rod 23 near the limiting rod 13. A second protective spring 25 is sleeved on the outer wall of the sliding rod 23. A roller 22 is rotatably installed on the inner wall of one side of the limiting rod 13.

[0037] The vertical plate 19 is used to set the first protective spring 20, the first protective spring 20 is used to set the arc plate 21, the arc plate 21 is used to contact the roller 22, and the rectangular plate 24 is used to protect the cross rod 9 from the impact of the roller 22. When the cross rod 9 shakes, the roller 22 can better reduce the friction force between the limit rod 13 and the cross rod 9.

[0038] In this embodiment, a rotating groove 29 is provided at the lower end of the lower seat plate 1. A dismantling structure 26 is provided inside the rotating groove 29. The dismantling structure 26 includes a dismantling screw 27. Both ends of the dismantling screw 27 are threaded with threaded sleeves 28. One end of the threaded sleeve 28 is rotatably connected to the dismantling plate 17. An anti-slip rod 30 is fixedly provided on the outer wall of the middle part of the dismantling screw 27.

[0039] The removal screw 27 is used to install the threaded sleeve 28, which is rotatably connected to the removal plate 17. This allows the removal plate 17 to be pulled out when the threaded sleeve 28 extends, thus enabling the removal plate 17 to be disassembled. The anti-slip rod 30 facilitates the operator to rotate the removal screw 27 more easily.

[0040] In this embodiment, a slot 31 is provided on one side of the removal plate 17, and the slot 31 is located on the outer wall of one side of the fixing frame 11.

[0041] The slot 31 is used to fit on the outside of one side of the fixing frame 11, and the fixing frame 11 is used to set the limiting block 12.

[0042] In this embodiment, a locking structure 32 is installed on the outer wall of the upper seat plate 2. The locking structure 32 includes a circular plate 33. A movable plate 34 is movably sleeved on the outer wall of the upper seat plate 2. Locking screws 35 are threaded on both sides of the circular plate 33. The upper end of the locking screws 35 is rotatably connected to the movable plate 34. A locking rod 36 is fixedly installed on both sides of the upper end of the movable plate 34. A locking hole is opened at the lower end of the limiting rod 13. The upper end of the locking rod 36 passes through the holes on both sides of the fixed plate 8 and enters the interior of the locking hole.

[0043] The circular plate 33 is used to set the locking screw 35, the locking screw 35 is used to adjust the height of the movable plate 34, the movable plate 34 is used to fix the locking rod 36, and the locking rod 36 is used to enter the locking hole at the lower end of the limit rod 13.

[0044] In this embodiment, the upper end of the mounting plate 10 is provided with a plurality of reserved holes 37 in a ring shape, and the upper end of the mounting plate 10 is provided with a hidden groove, and the screw is located inside the hidden groove.

[0045] The reserved hole 37 facilitates the operator to securely connect the mounting plate 10 to the lower end of the building, and the screw is located inside the hidden groove to ensure the flatness of the upper surface of the mounting plate 10.

[0046] In this embodiment, the front end of the lower base plate 1 is provided with a control groove 39, the rear end of the control groove 39 is connected to the interior of the rotating groove 29, and four ear plates 38 are fixedly installed on the outer wall of the lower base plate 1 in a ring.

[0047] The control slot 39 allows the operator to easily access the inside of the rotating slot 29 with their upper limbs, thus enabling them to quickly rotate the anti-slip rod 30. The ear plate 38 allows the operator to securely install the lower seat plate 1.

[0048] In this embodiment, the internal thread of the limiting block 12 is provided with a locking knob, and the upper end of the fixing bracket 11 is provided with a threaded hole, and the output end of the locking knob enters the interior of the threaded hole.

[0049] The locking knob is used to secure the connection between the limit block 12 and the fixing bracket 11, and the threaded hole facilitates the entry of the output end of the locking knob.

[0050] In this embodiment, the limiting rod 13 is L-shaped and made of titanium alloy.

[0051] It should be noted that this invention is an anti-overturning friction pendulum seismic isolation bearing. When installing it at the bottom of the building, the threaded knob on one side of the limiting block 12 is removed, and the lower seat plate 1 is installed to the foundation, and the upper seat plate 2 is installed to the bottom of the building. After installation, when an earthquake occurs, the building body carries the upper seat plate 2 and shakes. When shaking, the upper seat plate 2 drives the cross rod 9 to move. While the cross rod 9 shakes smoothly, it pushes the limiting rod 13. When the limiting rod 13 is under force, it drives the limiting block 12 and the connecting rod 14 to move to one side, so that the connecting rod 14 squeezes the limiting spring 16, thereby achieving the purpose of buffering and limiting.

[0052] When the cross bar 9 contacts the roller 22 on one side of the limit bar 13, the force of the cross bar 9 shaking causes the arc plate 21 to contact the roller 22. When the roller 22 squeezes the arc plate 21 and the rectangular plate 24, the squeezing force is reduced by the first protective spring 20, which can buffer and protect the limit bar 13, and prevent the cross bar 9 from directly hitting the limit bar 13 and causing damage to the limit bar 13.

[0053] When it is necessary to remove the upper seat plate 2 and repair the lower seat plate 1, the operator extends his upper limb into the control groove 39 and rotates the anti-slip rod 30, which causes the anti-slip rod 30 to drive the removal screw 27 to rotate, thereby causing the threaded sleeve 28 to extend to both sides, so that the removal plate 17 carrying the limit spring 16 is pulled out from the inside of the buffer box 15, thereby causing the limit spring 16 to carry the connecting rod 14 to move, thereby causing the connecting rod 14 to drive the limit rod 13 to be pulled out from the lower end of the mounting plate 10, thus realizing the quick removal of the limit rod 13;

[0054] When moving or carrying the entire device, insert the knob bolt into the upper end of the threaded hole to fix the limit block 12 to the fixed frame 11. At the same time, rotate the two locking screws 35, so that the locking screws 35 rise, thereby driving the movable plate 34 to rise on the outer wall of the upper seat plate 2, so that the locking rod 36 passes into the locking hole at the lower end of the limit rod 13, thereby fastening the limit rod 13.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An anti-overturning friction pendulum vibration isolation bearing, comprising a lower seat plate (1), an upper seat plate (2) provided at the upper end of the lower seat plate (1), a sliding body (3) installed between the lower seat plate (1) and the upper seat plate (2), an upper friction plate (4) and a lower friction plate (5) respectively fixedly installed at the upper end of the lower seat plate (1) and the lower end of the upper seat plate (2), and wear-resistant plates (6) fixedly provided at both the upper and lower ends of the sliding body (3), characterized in that: The upper end of the upper seat plate (2) is provided with a limiting structure (7), the limiting structure (7) includes a fixing plate (8), and a cross rod (9) is fixedly provided at the upper end of the fixing plate (8). A mounting plate (10) is provided at the upper end of the cross rod (9), and the mounting plate (10) is installed with the cross rod (9) by screws. A fixing frame (11) is fixedly installed on the outer wall of the lower seat plate (1), and limiting blocks (12) are provided on both sides of the upper end of the fixing frame (11). A limiting rod (13) is provided on one side of the positioning block (12). One end of the limiting rod (13) is located at the lower end of the mounting plate (10). Buffer boxes (15) are installed on both sides of the lower seat plate (1). The lower end of the limiting block (12) extends into the interior of the buffer box (15) and is fixedly installed with a connecting rod (14). A limiting spring (16) is fixedly provided on one side of the connecting rod (14), and a removal plate (17) is fixedly installed on one side of the limiting spring (16).

2. The anti-overturning friction pendulum seismic isolation bearing according to claim 1, characterized in that: A protective structure (18) is provided on one side of the cross bar (9). The protective structure (18) includes two sets of vertical plates (19). A first protective spring (20) is fixedly installed on one side of the vertical plate (19). An arc plate (21) is fixedly installed on one end of the first protective spring (20) near the limiting rod (13). A sliding rod (23) is movably arranged inside the mounting plate (10). A rectangular plate (24) is fixedly arranged on the side of the sliding rod (23) near the limiting rod (13). A second protective spring (25) is sleeved on the outer wall of the sliding rod (23). A roller (22) is rotatably installed on the inner wall of one side of the limiting rod (13).

3. The anti-overturning friction pendulum seismic isolation bearing according to claim 1, characterized in that: The lower end of the lower seat plate (1) is provided with a rotating groove (29). The rotating groove (29) is provided with a dismantling structure (26). The dismantling structure (26) includes a dismantling screw (27). Both ends of the dismantling screw (27) are threaded with threaded sleeves (28). One end of the threaded sleeve (28) is rotatably connected to the dismantling plate (17). An anti-slip rod (30) is fixedly provided on the outer wall of the middle part of the dismantling screw (27).

4. The anti-overturning friction pendulum seismic isolation bearing according to claim 1, characterized in that: The removal plate (17) has a slot (31) on one side, and the slot (31) is located on the outer wall of the fixing frame (11).

5. The anti-overturning friction pendulum seismic isolation bearing according to claim 1, characterized in that: The outer wall of the upper seat plate (2) is equipped with a locking structure (32). The locking structure (32) includes a circular plate (33). The outer wall of the upper seat plate (2) is movably fitted with a movable plate (34). Locking screws (35) are threadedly installed on both sides of the circular plate (33). The upper end of the locking screw (35) is rotatably connected to the movable plate (34). The upper ends of the movable plate (34) are fixedly provided with locking rods (36) on both sides. The lower end of the limiting rod (13) is provided with a locking hole. The upper end of the locking rod (36) passes through the holes on both sides of the fixed plate (8) and enters the interior of the locking hole.

6. The anti-overturning friction pendulum seismic isolation bearing according to claim 1, characterized in that: The mounting plate (10) has a plurality of reserved holes (37) in a ring at its upper end, and a hidden groove is provided at the upper end of the mounting plate (10), with the screw located inside the hidden groove.

7. The anti-overturning friction pendulum seismic isolation bearing according to claim 3, characterized in that: The lower base plate (1) has a control groove (39) at its front end, and the rear end of the control groove (39) leads to the interior of the rotating groove (29). Four ear plates (38) are fixedly installed on the outer wall of the lower base plate (1) in a ring.

8. The anti-overturning friction pendulum seismic isolation bearing according to claim 1, characterized in that: The limiting block (12) has a locking knob on its internal thread, and the upper end of the fixing frame (11) has a threaded hole, with the output end of the locking knob entering the inside of the threaded hole.

9. The anti-overturning friction pendulum seismic isolation bearing according to claim 1, characterized in that: The limiting rod (13) is L-shaped and is made of titanium alloy.

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