CN215668964U

CN215668964U - Bridge anti-seismic device

Info

Publication number: CN215668964U
Application number: CN202121747229.3U
Authority: CN
Inventors: 黄冠朝
Original assignee: Individual
Current assignee: Luo Ling; Xiao Guanfeng
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-01-28
Anticipated expiration: 2031-07-29

Abstract

The utility model relates to the technical field of bridge earthquake resistance, and discloses a bridge earthquake resistance device, which comprises: the movable plate comprises a fixed seat and a plate body, wherein the top of the fixed seat is in lap joint with the lower surface of the plate body, a groove is formed in the top of the fixed seat, a partition plate is welded on the inner wall of the groove, a movable plate is arranged inside the groove, the upper surface of the movable plate is in lap joint with the lower surface of the plate body, and the surface of the movable plate is in sliding connection with the inner wall of the groove. This bridge anti-seismic device, through setting up damping device, connecting device, recess and baffle, when using, the guide block moves along the surface of guide bar, the guide bar leads the removal of guide block, the spacing groove is spacing to the removal of guide block, prevent that the guide block from taking place the skew at the removal in-process, the second spring cushions the removal of guide block, through setting up damping device and connecting device, the anti multi-direction vibrations performance of bridge has been improved, prevent that the bridge is impaired, the effect that improves life has been reached.

Description

Bridge anti-seismic device

Technical Field

The utility model relates to the technical field of bridge earthquake resistance, in particular to a bridge earthquake resistance device.

Background

The bridge generally refers to a structure erected on rivers, lakes and seas to enable vehicles, pedestrians and the like to smoothly pass, in order to adapt to the modern high-speed developed traffic industry, the bridge is also extended to be a structure erected to span mountain mines, unfavorable geology or meet other traffic requirements to enable the passing to be more convenient, along with the development of the traffic and transportation industry and the improvement of the building engineering standard, the support not only plays a supporting role in the bridge and other engineering, but also has the functions of vibration reduction, uplift resistance, bending moment release and displacement resistance.

Among the prior art, the condition that the prefabricated bridge board often appears falling from the pier in the use of present common bridge, when the bridge received multi-directional vibrations, the bridge board can not produce the displacement thereupon, can make like this easily make the bridge impaired, the multi-direction shock resistance ability of bridge is relatively poor, and then leads to the life-span shorter, simultaneously, current bridge when using, if the bridge received the damage, the incident can appear in pedestrian and the vehicle both on the bridge, under the bridge, and then leads to having improved the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a bridge anti-seismic device which has the advantages of prolonging the service life and reducing potential safety hazards, and solves the problems that in the prior art, when a common bridge is used, a prefabricated bridge plate can fall from a pier during an earthquake, the bridge is vibrated in multiple directions, the bridge plate cannot be displaced along with the prefabricated bridge plate, the bridge is easy to damage, the bridge is poor in multi-direction vibration resistance and short in service life, and meanwhile, when the existing bridge is used, if the bridge is damaged, pedestrians and vehicles on the bridge and under the bridge can have safety accidents, and the potential safety hazards are improved.

The utility model provides the following technical scheme: a bridge seismic isolation device comprising: fixing base and plate body, the top of fixing base and the lower surface overlap joint of plate body, the top of fixing base is seted up flutedly, the inner wall welding of recess has the baffle, the inside of recess is provided with the movable plate, the upper surface of movable plate and the lower surface overlap joint of plate body, the surface of movable plate and the inner wall sliding connection of recess, the side of movable plate is provided with buffer, the side of baffle is provided with damping device, the lower surface of movable plate is provided with the fixed block, the surface of fixed block is provided with connecting device.

Preferably, the buffer device comprises a connecting block, a square block and a first spring, the connecting block is welded on the side face of the moving plate, the bottom of the connecting block is welded with the top of the square block, one end of the first spring is welded at the bottom of the inner wall of the groove, and the other end of the first spring is welded with the bottom of the square block.

Preferably, the inner wall of the groove is provided with a sliding groove, the surface of the square block is welded with a sliding block, and the inner wall of the sliding groove is connected with the surface of the sliding block in a sliding mode.

Preferably, damping device includes guide bar, locating piece, guide block, spacing groove and second spring, the locating piece welding is in the bottom of recess inner wall, the one end of guide bar and the side welding of locating piece, the other end of guide bar and the side welding of baffle, the guide block cup joints the surface at the guide bar, the surface of guide block and the inner wall sliding connection of spacing groove, the one end welding of second spring is in the side of baffle, the other end welding of second spring is in the side of guide block, the second spring cup joints the surface at the guide bar.

Preferably, connecting device includes spread groove, fixed axle, constant head tank, circle axle, connecting rod and telescopic link, the surface at the fixed block is seted up to the spread groove, the fixed axle welding is at the inner wall of spread groove, the surface at the guide block is seted up to the constant head tank, the inner wall at the constant head tank is welded to the circle axle, the surface at fixed axle and circle axle is cup jointed respectively at the both ends of connecting rod, the one end assembly of telescopic link is in the bottom of recess inner wall, the other end assembly of telescopic link is in the bottom of fixed block.

Preferably, the number of the guide blocks is two, and the two guide blocks are symmetrically arranged by taking the central vertical plane of the fixing seat as a symmetrical plane.

Compared with the prior art, the utility model has the following beneficial effects:

1. the anti-seismic device for the bridge is characterized in that the shock absorption device, the connection device, the groove and the partition plate are arranged, when the anti-seismic device for the bridge is used, the guide block moves along the surface of the guide rod, the guide rod guides the movement of the guide block, the limit groove limits the movement of the guide block to prevent the guide block from deviating in the moving process, the second spring buffers the movement of the guide block, the connecting rod connects the fixed block and the guide block together through the fixed shaft and the circular shaft, when the fixed block moves downwards, the connecting rod enables the guide block to displace to further enable the second spring to compress, the anti-multi-direction shock performance of the bridge is improved through the arrangement of the shock absorption device and the connection device, the bridge is prevented from being damaged, the effect of prolonging the service life is achieved, the problems that in the prior art, the common bridge plate falls from a pier during the earthquake and the bridge is subjected to multi-direction shock are solved, the bridge plate can not displace along with the displacement, so that the bridge is easy to be damaged, the multi-direction vibration resistance of the bridge is poor, and the service life of the bridge is short.

2. This bridge antidetonation device, through setting up buffer, when using, the connecting block couples together movable plate and square, make the movable plate drive the square through the connecting block and remove, and then make first spring produce tensile or compressed state, the slider has reduced the area of contact between square and the fixing base, it is more smooth and easy to make the square remove, through setting up buffer, prevent the bridge damage, the effect that reduces the potential safety hazard has been reached, prior art has been solved, present common bridge is in the use, current bridge is when using, if the bridge receives the damage, on the bridge, pedestrian and vehicle under the bridge all can the incident appear, the problem of potential safety hazard has been improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front sectional view of the fixing block according to the present invention;

FIG. 3 is a left sectional view of the slider of the present invention.

In the figure: 1. a fixed seat; 2. a plate body; 3. a groove; 4. a partition plate; 5. moving the plate; 6. a buffer device; 61. connecting blocks; 62. a square block; 63. a first spring; 7. a damping device; 71. a guide bar; 72. positioning blocks; 73. a guide block; 74. a limiting groove; 75. a second spring; 8. a fixed block; 9. a connecting device; 91. connecting grooves; 92. a fixed shaft; 93. positioning a groove; 94. a circular shaft; 95. a connecting rod; 96. a telescopic rod; 10. a chute; 11. a slide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, an anti-seismic device for a bridge includes: fixing base 1 and plate body 2, the top of fixing base 1 and the lower surface overlap joint of plate body 2, recess 3 has been seted up at the top of fixing base 1, the inner wall welding of recess 3 has baffle 4, the inside of recess 3 is provided with movable plate 5, the upper surface of movable plate 5 and the lower surface overlap joint of plate body 2, the surface of movable plate 5 and the inner wall sliding connection of recess 3, the side of movable plate 5 is provided with buffer 6, the side of baffle 4 is provided with damping device 7, the lower surface of movable plate 5 is provided with fixed block 8, the surface of fixed block 8 is provided with connecting device 9.

Wherein; the buffer device 6 comprises a connecting block 61, a square block 62 and a first spring 63, the connecting block 61 is welded on the side face of the moving plate 5, the bottom of the connecting block 61 is welded with the top of the square block 62, one end of the first spring 63 is welded on the bottom of the inner wall of the groove 3, the other end of the first spring 63 is welded with the bottom of the square block 62, the moving plate 5 and the square block 62 are connected through the connecting block 61, the moving plate 5 drives the square block 62 to move through the connecting block 61, and then the first spring 63 is in a stretching or compressing state.

Wherein; the inner wall of recess 3 has seted up spout 10, and the skin weld of square 62 has slider 11, the inner wall of spout 10 and the sliding surface connection of slider 11, and slider 11 cooperation spout 10 uses, and slider 11 has reduced the area of contact between square 62 and the fixing base 1, makes more smooth and easy that square 62 removed.

Wherein; the damping device 7 comprises a guide rod 71 and a positioning block 72, the guide block 73, the limiting groove 74 and the second spring 75, the positioning block 72 is welded at the bottom of the inner wall of the groove 3, one end of the guide rod 71 is welded with the side face of the positioning block 72, the other end of the guide rod 71 is welded with the side face of the partition plate 4, the guide block 73 is sleeved on the surface of the guide rod 71, the surface of the guide block 73 is in sliding connection with the inner wall of the limiting groove 74, one end of the second spring 75 is welded on the side face of the partition plate 4, the other end of the second spring 75 is welded on the side face of the guide block 73, the second spring 75 is sleeved on the surface of the guide rod 71, the guide block 73 moves along the surface of the guide rod 71, the guide rod 71 guides the movement of the guide block 73, the limiting groove 74 limits the movement of the guide block 73, the guide block 73 is prevented from being deviated in the moving process, and the second spring 75 buffers the movement of the guide block 73.

Wherein; connecting device 9 includes connecting groove 91, fixed axle 92, constant head tank 93, circular shaft 94, connecting rod 95 and telescopic link 96, connecting groove 91 is seted up on the surface of fixed block 8, fixed axle 92 welds the inner wall at connecting groove 91, constant head tank 93 is seted up on the surface of guide block 73, circular shaft 94 welds the inner wall at constant head tank 93, the both ends of connecting rod 95 cup joint respectively on the surface of fixed axle 92 and circular shaft 94, the one end assembly of telescopic link 96 is in the bottom of recess 3 inner wall, the other end assembly of telescopic link 96 is in the bottom of fixed block 8, connecting rod 95 links together fixed block 8 and guide block 73 through fixed axle 92 and circular shaft 94, when fixed block 8 moves down, connecting rod 95 makes guide block 73 carry out the displacement, and then make second spring 75 compress.

Wherein; the number of guide blocks 73 is two, and two guide blocks 73 use the central vertical plane of fixing base 1 to set up as the symmetry plane symmetry, and two guide blocks 73 are through the fixed block 8 with the downward power dispersion of movable plate 5 to act on second spring 75, and then reach absorbing effect.

The working principle is that before use, the guide blocks 73 and the square blocks 62 are in a static state, when the plate body 2 is used, the plate body 2 is vibrated by the outside, the plate body 2 is pressed downwards under stress, the fixed block 8 is moved downwards by the moving plate 5, the fixed block 8 moves downwards to enable the telescopic rod 96 to retract, the fixed block 8 enables the two guide blocks 73 to move away under the action of the connecting rod 95, the guide blocks 73 move along the surface of the guide rod 71, the guide blocks 73 move along the inner wall of the limiting groove 74, the second spring 75 is compressed, in the process that the moving plate 5 moves downwards, the square blocks 62 move downwards through the connecting block 61, the sliding blocks 11 move downwards along the inner wall of the sliding groove 10, the first spring 63 is compressed, after the pressure of the plate body 2 disappears, the first spring 63 and the second spring 75 both return to the original positions, the square blocks 62 move upwards along the inner wall of the groove 3, and the sliding blocks 11 move upwards along the inner wall of the sliding groove 10, the guide block 73 moves along the surface of the guide rod 71 in a direction close to the positioning block 72, and after moving to the original position, the pressure on the plate body 2 can be buffered.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A bridge seismic isolation device, comprising: fixing base (1) and plate body (2), the top of fixing base (1) and the lower surface overlap joint of plate body (2), recess (3) are seted up at the top of fixing base (1), the inner wall welding of recess (3) has baffle (4), the inside of recess (3) is provided with movable plate (5), the upper surface of movable plate (5) and the lower surface overlap joint of plate body (2), the surface of movable plate (5) and the inner wall sliding connection of recess (3), the side of movable plate (5) is provided with buffer (6), the side of baffle (4) is provided with damping device (7), the lower surface of movable plate (5) is provided with fixed block (8), the surface of fixed block (8) is provided with connecting device (9).

2. A bridge anti-seismic device according to claim 1, characterized in that the buffer device (6) comprises a connecting block (61), a block (62) and a first spring (63), the connecting block (61) is welded on the side of the moving plate (5), the bottom of the connecting block (61) is welded with the top of the block (62), one end of the first spring (63) is welded on the bottom of the inner wall of the groove (3), and the other end of the first spring (63) is welded with the bottom of the block (62).

3. A bridge earthquake-resistant device according to claim 1 or 2, wherein a sliding groove (10) is formed in the inner wall of the groove (3), a sliding block (11) is welded on the surface of the square block (62), and the inner wall of the sliding groove (10) is in sliding connection with the surface of the sliding block (11).

4. A bridge seismic device according to claim 1, characterized in that said damping means (7) comprise a guide rod (71), a positioning block (72), a guide block (73), a limit groove (74) and a second spring (75), the positioning block (72) is welded at the bottom of the inner wall of the groove (3), one end of the guide rod (71) is welded with the side surface of the positioning block (72), the other end of the guide rod (71) is welded with the side surface of the clapboard (4), the guide block (73) is sleeved on the surface of the guide rod (71), the surface of the guide block (73) is connected with the inner wall of the limit groove (74) in a sliding way, one end of the second spring (75) is welded on the side face of the partition plate (4), the other end of the second spring (75) is welded on the side face of the guide block (73), and the second spring (75) is sleeved on the surface of the guide rod (71).

5. The bridge anti-seismic device according to claim 1, wherein the connecting device (9) comprises a connecting groove (91), a fixed shaft (92), a positioning groove (93), a round shaft (94), a connecting rod (95) and a telescopic rod (96), the connecting groove (91) is formed in the surface of the fixed block (8), the fixed shaft (92) is welded to the inner wall of the connecting groove (91), the positioning groove (93) is formed in the surface of the guide block (73), the round shaft (94) is welded to the inner wall of the positioning groove (93), two ends of the connecting rod (95) are respectively sleeved on the surfaces of the fixed shaft (92) and the round shaft (94), one end of the telescopic rod (96) is assembled at the bottom of the inner wall of the groove (3), and the other end of the telescopic rod (96) is assembled at the bottom of the fixed block (8).

6. A bridge anti-seismic device according to claim 4, characterized in that the number of the guide blocks (73) is two, and the two guide blocks (73) are symmetrically arranged with the central vertical plane of the fixed base (1) as a symmetry plane.