Anti-drawing protection device for shock insulation rubber support

Abstract

The utility model relates to the technical field of rubber supports, and discloses a shock insulation rubber support anti-drawing protection device which comprises a lower connecting base, the upper surface of the lower connecting base is fixedly connected with a rubber base, the upper surface of the rubber base is fixedly connected with a mounting base, and the upper surface of the mounting base is slidably connected with an upper connecting base. And the lower surface of the upper connecting seat is fixedly connected with an L-shaped seat. According to the anti-drawing protection device for the shock insulation rubber support, when the device is subjected to upward drawing force, an upper connecting seat moves along with a bridge above, the upper connecting seat moves upwards, an L-shaped seat pushes a connecting rod to move upwards, a connecting spring is extruded, the connecting spring can absorb the drawing force, the drawing strength is reduced, and therefore drawing protection is conducted; and by arranging a limiting block, when the device performs left-right buffering, the limiting block can bear lateral force to drive the mounting base to move at the moment, and through buffering of a rubber base, the sleeve is prevented from bearing large lateral force, and stable connection of the sleeve is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber bearings, and more specifically to an anti-pullout protection device for a seismic isolation rubber bearing. Background Art

[0002] Bridge rubber bearings are made of multiple layers of rubber sheets and thin steel plates that are vulcanized and bonded. They have sufficient vertical rigidity to reliably transmit the reaction force of the upper structure to the piers; they have good elasticity to adapt to the rotation of the beam ends, and have a large shear deformation capacity to meet the horizontal displacement of the upper structure.

[0003] It is normal for tensile stress to appear in seismic isolation bearings under the action of rare earthquakes. Many buildings or bridges have tensile stress. Tensile stress is mainly an upward pulling force on the bearing. When the tensile force is large, it will cause direct stress on the bearing connection, making the connection unstable and causing safety hazards in subsequent use. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a seismic isolation rubber bearing anti-pullout protection device to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a seismic isolation rubber bearing anti-pullout protection device, comprising a lower connecting seat, the upper surface of the lower connecting seat is fixedly connected with a rubber seat, the upper surface of the rubber seat is fixedly connected with a mounting seat, the upper surface of the mounting seat is slidably connected with an upper connecting seat, the lower surface of the upper connecting seat is fixedly connected with an L-shaped seat, the L-shaped seat is located directly below the mounting seat, the lower surface of the mounting seat is fixedly connected with a sleeve, the interior of the sleeve is square, the inner wall of the sleeve is slidably connected with a sliding block, the opposite surface of the sliding block and the sleeve is fixedly connected with a connecting spring, the bottom end of the connecting spring is fixedly connected with a connecting rod, and the bottom end of the connecting rod is fixedly connected with the upper surface of the L-shaped seat;

[0006] The lower surface of the upper connecting seat is fixedly connected with a limiting block, the upper surface of the mounting seat is provided with a limiting groove, and the surface of the limiting block overlaps with the inner wall of the limiting groove.

[0007] The scheme is further that the opposing surfaces of the upper connecting seat and the lower connecting seat are fixedly connected with mounting blocks, the front sides of the upper and lower mounting blocks are provided with grooves, the interior of the groove is detachably provided with a connecting strip, the interior of the connecting strip is provided with a cavity, the inner wall of the cavity is slidably connected with a slider, the opposing surfaces of the slider and the cavity are fixedly connected with a reset spring, the side of the slider away from the reset spring is fixedly connected with a plug-in block, the side of the connecting strip is provided with a through opening communicating with the interior of the cavity, the surface of the plug-in block overlaps with the inner wall of the through opening, the inner side wall of the groove is provided with a plug-in slot matched with the plug-in block, the surface of the plug-in block overlaps with the inner wall of the plug-in slot, and the front and back sides of the plug-in block are both arc-shaped.

[0008] A further solution is that the opposite back surfaces of the upper connecting seat and the lower connecting seat are fixedly connected with connecting columns, the number of the sleeves is several, the several sleeves are evenly divided into two groups, each group of sleeves is equidistantly arranged on the lower surface of the mounting seat, and the two groups of sleeves are symmetrically arranged on the lower surface of the mounting seat.

[0009] Technical effects and advantages of the utility model:

[0010] 1. The anti-pull-out protection device of the seismic isolation rubber bearing, when the device is subjected to an upward pulling force, the upper connecting seat will move with the bridge above, and the upper connecting seat will move upward. At this time, the L-shaped seat pushes the connecting rod to move upward, and the connecting spring is squeezed. At this time, the connecting spring can absorb the pulling force and reduce the pulling strength, thereby performing pull-out protection. In addition, the setting of the limit block, when the device performs left and right buffering, the limit block will withstand the lateral force to drive the mounting seat to move, and buffer through the rubber seat to prevent the sleeve from being subjected to a large lateral force, thereby ensuring the stable connection of the sleeve.

[0011] 2. The anti-pullout protection device of the seismic isolation rubber bearing inserts the connecting strip into the groove of the mounting block. At this time, the arc surface of the plug-in block is forced to be accommodated in the cavity, and the reset spring is squeezed. When the plug-in block moves to the plug-in slot, the elastic force of the reset spring pushes the plug-in block to be inserted into the plug-in slot, and then the upper connecting seat and the lower connecting seat are connected through the two mounting blocks, ensuring the connection between the upper connecting seat and the lower connecting seat before installation, which is convenient for transportation. After the installation is completed, pull the connecting strip, and the arc surface of the plug-in block is forced to be accommodated to directly take out the connecting strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the internal structure of the sleeve of the utility model.

[0014] Figure 3 It is a schematic diagram of the top-sectional structure of the mounting block of the utility model.

[0015] Figure 4 It is a schematic diagram of the front section structure of the upper connecting seat of the utility model.

[0016] The reference numerals are: 1 lower connecting seat, 2 rubber seat, 3 mounting seat, 4 upper connecting seat, 5 L-shaped seat, 6 sleeve, 7 sliding block, 8 connecting spring, 9 connecting rod, 10 limiting block, 11 mounting block, 12 connecting strip, 13 slider, 14 return spring, 15 plug-in block, 16 connecting column. DETAILED DESCRIPTION

[0017] A seismic isolation rubber bearing anti-pullout protection device, referring to Figure 1-4, including a lower connecting seat 1, the upper surface of the lower connecting seat 1 is fixedly connected to a rubber seat 2, the upper surface of the rubber seat 2 is fixedly connected to a mounting seat 3, the upper surface of the mounting seat 3 is slidably connected to an upper connecting seat 4, and the opposite back surfaces of the upper connecting seat 4 and the lower connecting seat 1 are fixedly connected to connecting columns 16.

[0018] The lower surface of the upper connecting seat 4 is fixedly connected with an L-shaped seat 5, and the L-shaped seat 5 is located directly below the mounting seat 3. The lower surface of the mounting seat 3 is fixedly connected with a sleeve 6. The number of sleeves 6 is several, and the several sleeves 6 are evenly divided into two groups. Each group of sleeves 6 is equidistantly arranged on the lower surface of the mounting seat 3, and the two groups of sleeves 6 are symmetrically arranged on the lower surface of the mounting seat 3. The interior of the sleeve 6 is square, and a sliding block 7 is slidably connected to the inner wall of the sleeve 6. The sliding block 7 is fixedly connected to the opposite surface of the sleeve 6 with a connecting spring 8. The bottom end of the connecting spring 8 is fixedly connected with a connecting rod 9, and the bottom end of the connecting rod 9 is fixedly connected to the upper surface of the L-shaped seat 5. The lower surface of the upper connecting seat 4 is fixedly connected with a limiting block 10. A limiting groove is provided on the upper surface of the mounting seat 3, and the surface of the limiting block 10 overlaps the inner wall of the limiting groove.

[0019] When the device is subjected to an upward pulling force, the upper connecting seat 4 will move with the bridge above, and the upper connecting seat 4 will move upward. At this time, the L-shaped seat 5 will push the connecting rod 9 upward, and the connecting spring 8 will be squeezed. At this time, the connecting spring 8 can absorb the pulling force and reduce the pulling strength, thereby performing pulling protection. In addition, the setting of the limit block 10, when the device performs left and right buffering, the limit block 10 will withstand the lateral force to drive the mounting seat 3 to move, and buffer through the rubber seat 2 to prevent the sleeve 6 from being subjected to a large lateral force, thereby ensuring the stable connection of the sleeve 6.

[0020] The upper connecting seat 4 and the lower connecting seat 1 have mounting blocks 11 fixedly connected to their opposite surfaces, and grooves are provided on the front surfaces of the upper and lower mounting blocks 11, and a connecting strip 12 is detachably installed inside the groove, and a cavity is provided inside the connecting strip 12, and a slider 13 is slidably connected to the inner wall of the cavity, and a reset spring 14 is fixedly connected to the slider 13 and the opposite surface of the cavity, and a plug-in block 15 is fixedly connected to the side of the slider 13 away from the reset spring 14, and a through opening communicating with the inside of the cavity is provided on the side of the connecting strip 12, and the surface of the plug-in block 15 overlaps with the inner wall of the through opening, and a plug-in slot matched with the plug-in block 15 is provided on the inner side wall of the groove, and the surface of the plug-in block 15 overlaps with the inner wall of the plug-in slot, and the front and back sides of the plug-in block 15 are both arc-shaped.

[0021] Insert the connecting strip 12 into the groove of the mounting block 11. At this time, the arc surface of the plug-in block 15 is forced to be accommodated in the cavity, and the reset spring 14 is squeezed. When the plug-in block 15 moves to the plug-in slot, the elastic force of the reset spring 14 pushes the plug-in block 15 to be inserted into the plug-in slot, and then the upper connecting seat 4 and the lower connecting seat 1 are connected through the two mounting blocks 11, ensuring the connection between the upper connecting seat 4 and the lower connecting seat 1 before installation, which is convenient for transportation. After the installation is completed, pull the connecting strip 12, and the arc surface 15 of the plug-in block is forced to be accommodated, so that the connecting strip 12 can be directly taken out.

[0022] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A seismic isolation rubber bearing anti-pullout protection device, comprising a lower connecting seat (1), characterized in that: The upper surface of the lower connecting seat (1) is fixedly connected to a rubber seat (2), the upper surface of the rubber seat (2) is fixedly connected to a mounting seat (3), the upper surface of the mounting seat (3) is slidably connected to an upper connecting seat (4), the lower surface of the upper connecting seat (4) is fixedly connected to an L-shaped seat (5), the L-shaped seat (5) is located directly below the mounting seat (3), the lower surface of the mounting seat (3) is fixedly connected to a sleeve (6), the interior of the sleeve (6) is square, the inner wall of the sleeve (6) is slidably connected to a sliding block (7), the sliding block (7) and the opposite surface of the sleeve (6) are fixedly connected to a connecting spring (8), the bottom end of the connecting spring (8) is fixedly connected to a connecting rod (9), and the bottom end of the connecting rod (9) is fixedly connected to the upper surface of the L-shaped seat (5); The lower surface of the upper connecting seat (4) is fixedly connected to a limiting block (10), the upper surface of the mounting seat (3) is provided with a limiting groove, and the surface of the limiting block (10) overlaps the inner wall of the limiting groove.

2. The anti-pullout protection device for a seismic isolation rubber bearing according to claim 1 is characterized in that: The opposing surfaces of the upper connecting seat (4) and the lower connecting seat (1) are both fixedly connected with mounting blocks (11), and the front surfaces of the upper and lower mounting blocks (11) are both provided with grooves.

3. The anti-pullout protection device for a seismic isolation rubber bearing according to claim 2 is characterized in that: A connecting strip (12) is detachably mounted inside the groove, and a cavity is provided inside the connecting strip (12).

4. The anti-pullout protection device for a seismic isolation rubber bearing according to claim 3 is characterized in that: The inner wall of the cavity is slidably connected with a slider (13), the surface of the slider (13) opposite to the cavity is fixedly connected with a return spring (14), and the surface of the slider (13) away from the return spring (14) is fixedly connected with a plug-in block (15).

5. The anti-pullout protection device for a seismic isolation rubber bearing according to claim 4 is characterized in that: A through opening communicating with the interior of the cavity is formed on the side of the connecting strip (12), and the surface of the plug-in block (15) overlaps with the inner wall of the through opening.

6. The anti-pullout protection device for a seismic isolation rubber bearing according to claim 5 is characterized in that: The inner side wall of the groove is provided with a plug-in slot adapted to the plug-in block (15), the surface of the plug-in block (15) overlaps the inner wall of the plug-in slot, and the front and back sides of the plug-in block (15) are both arc-shaped.

7. The anti-pullout protection device for a seismic isolation rubber bearing according to claim 1 is characterized in that: The upper connecting seat (4) and the lower connecting seat (1) are both fixedly connected with connecting columns (16) on their opposite back surfaces.

8. The anti-pullout protection device for a seismic isolation rubber bearing according to claim 1 is characterized in that: The number of the sleeves (6) is several, and the several sleeves (6) are evenly divided into two groups. Each group of sleeves (6) is equidistantly arranged on the lower surface of the mounting seat (3), and the two groups of sleeves (6) are symmetrically arranged on the lower surface of the mounting seat (3).

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