CN220724882U - Vibration damper for bridge widening construction - Google Patents

Abstract

The utility model discloses a vibration damper for bridge widening construction, which comprises a bridge body, wherein the lower end of the bridge body is provided with a mounting plate, the upper end surface of the mounting plate is connected with a fixing plate, the left side and the right side of the fixing plate are respectively provided with a second buffer mechanism, the lower end of the mounting plate is provided with a bottom plate, the upper end surface of the bottom plate is connected with a first buffer mechanism, the upper end of the first buffer mechanism penetrates through the mounting plate to be connected with the second buffer mechanism, the upper end surface of the bottom plate is connected with a buffer column, the upper end surface of the buffer column is provided with an inner cavity which is recessed inwards, the inner cavity is movably connected with a telescopic rod with the buffer mechanism, the upper end of the telescopic rod sequentially penetrates through the mounting plate and the fixing plate to be connected with the bridge body, the outer wall of the telescopic rod positioned at the upper end of the fixing plate is sleeved with a fourth spring, and the two ends of the fourth spring are respectively connected with the bridge body and the fixing plate. The utility model effectively ensures the whole damping effect, slows down the vibration between new and old bridges, avoids the collapse of the bridge body caused by the stress caused by the vibration, and ensures the construction quality.

Description

Vibration damper for bridge widening construction

Technical Field

The utility model belongs to the technical field of bridge equipment, and particularly relates to a vibration damper for bridge widening construction.

Background

The old bridge is widened by adopting integral connection, but when the old bridge is widened by adopting integral connection, new bridges are mutually influenced, new bridges are constrained by the old bridge, the stress is complex, the angle of influencing factors is not easy to guarantee, the construction quality is not easy to guarantee, and in the old bridge widening and reconstruction project, traffic of the existing roads of the terminal is not allowed, so that most bridges need to be poured with spliced concrete under normal traffic conditions.

However, the prior art has some problems: in the old bridge widening and reforming engineering, the machinery can impact the bridge body, the impact force can cause severe vibration of the bridge body, collapse of the bridge body can be caused when stress caused by vibration is severe, and the existing vibration damper does not have a limiting and stabilizing mechanism when in use, so that the vibration damper for bridge widening construction is provided.

Disclosure of Invention

Aiming at the problems of the prior art, the utility model provides the vibration damper for bridge widening construction, which effectively ensures the whole vibration damping effect, slows down the vibration between new and old bridges, avoids the collapse of the bridge body caused by the stress caused by vibration, ensures the construction quality, and solves the problems that in the old bridge widening reconstruction engineering, the bridge body is impacted by machinery, the impact force can cause severe vibration of the bridge body, and the collapse of the bridge body can be caused when the stress caused by vibration is serious.

The utility model discloses a vibration damper for bridge widening construction, which comprises a bridge body, wherein the lower end of the bridge body is provided with a mounting plate, the upper end face of the mounting plate is connected with a fixing plate, the left side and the right side of the fixing plate are respectively provided with a second buffer mechanism, the fixing plate is connected with the bridge body through the second buffer mechanism, the lower end of the mounting plate is provided with a bottom plate, four corners of the upper end face of the bottom plate are respectively connected with a first buffer mechanism, the upper end of the first buffer mechanism penetrates through the mounting plate to be connected with the second buffer mechanism, the middle part of the upper end face of the bottom plate is connected with a buffer column, the upper end face of the buffer column is provided with an inner cavity which is recessed inwards, the inner cavity is movably connected with a telescopic rod with the buffer mechanism, the upper end of the telescopic rod sequentially penetrates through the mounting plate and the fixing plate to be connected with the bridge body, the outer wall of the upper end of the fixing plate is sleeved with a fourth spring, and the two ends of the fourth spring are respectively connected with the bridge body and the fixing plate.

As preferable in the utility model, the upper end surface of the bridge body is connected with an arc-shaped deceleration strip.

As preferable mode of the utility model, the outer walls of the front side and the rear side of the fixed plate are respectively provided with an adjusting groove.

As the preferred one of the utility model, the second buffer mechanism comprises two groups of hinge plates symmetrically arranged, each group of hinge plates is arranged in two, the hinge plates are positioned at the front side and the rear side of the fixed plate, the lower ends of the hinge plates are hinged with the fixed plate and extend into the adjusting groove, the outer wall of one side corresponding to the other end of each hinge plate is hinged with a connecting block, and the connecting block is connected at the lower end of the bridge body.

As preferable, the first buffer mechanism comprises an outer cylinder fixedly connected to the upper end of the bottom, a limiting hole is correspondingly formed in the outer wall of the outer cylinder, an inner rod is arranged in the outer cylinder, one end of the inner rod, which is positioned in the outer cylinder, is connected with a limiting block, the lower end of the limiting block is connected with a fifth spring, the lower end of the fifth spring is connected with the inner wall of the lower end of the outer cylinder, and one end of the inner rod, which is positioned outside the outer cylinder, penetrates through a mounting plate and is fixedly connected with a connecting block.

As the preferable mode of the utility model, the outer wall of the inner rod, which is positioned at the upper end of the mounting plate, is sleeved with a second spring, and two ends of the second spring are respectively connected with the bridge body and the mounting plate.

As the preferable limit mechanism of the utility model is symmetrically arranged on the outer wall of the limit block, the limit mechanism comprises a step hole arranged on the outer wall of the limit block, a telescopic block is connected in the step hole, one end of the telescopic block positioned in the step hole is connected with a third spring, the other end of the third spring is connected with the inner wall of the step hole, and one end of the telescopic block extending to the outside of the step hole is connected with a limit Kong Qige.

As preferable, the inner wall of the buffer column is correspondingly provided with sliding grooves which are positioned at the left side and the right side of the inner cavity and are mutually communicated.

Preferably, the sliding groove is internally connected with a fixed shaft.

As preferable in the utility model, the inner wall of the lower end of the inner cavity is connected with a plurality of first springs, the upper ends of the first springs are connected with a telescopic rod, the outer wall of the telescopic rod is symmetrically connected with a sliding seat, and the sliding seat is in sliding connection with a fixed shaft.

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

1. according to the utility model, the first buffer mechanism and the second buffer mechanism effectively ensure the overall damping effect, reduce the vibration between the new bridge and the old bridge, avoid the collapse of the bridge body caused by stress caused by vibration, and ensure the construction quality;

2. according to the utility model, through the arc-shaped deceleration strip, when a vehicle passes through a road from the bridge body, the bridge body drives the connecting block to move downwards, the connecting block moves downwards to drive the inner rod to move towards the inside of the outer cylinder, so that the limiting block is driven to drive the fifth spring to compress, the connecting block moves downwards and simultaneously drives the second spring to compress downwards, vibration reduction and buffering of a wall body are facilitated, and the hinge plates hinged on the connecting block are utilized to move in the adjusting groove, so that adjustment is facilitated according to the movement of the connecting block, and the stability of the connecting block is improved;

3. according to the utility model, under the influence of the stress of the bridge body, the limiting block drives the telescopic block in the process of moving in the outer cylinder, the telescopic block is far away from the limiting hole and is in contact with the inner wall of the outer cylinder, and under the influence of the stress, the telescopic block drives the third spring to shrink towards the inside of the step hole, so that the fifth spring is convenient to compress;

4. according to the utility model, the telescopic rod is driven to shrink in the downward movement process under the influence of the stress of the bridge body, so that the fourth spring is compressed downward, meanwhile, the telescopic rod is driven to move downward in the inner cavity, the first spring is compressed, the sliding seats at the two sides are utilized to slide on the fixed shaft, and in the whole vibration reduction effect of the bridge body is improved, and meanwhile, the stability in the buffering process is improved.

Drawings

FIG. 1 is a schematic diagram of a mechanism provided by an embodiment of the present utility model;

FIG. 2 is a schematic front view of an embodiment of the present utility model;

FIG. 3 is a schematic top view of a mounting plate according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a first cushioning mechanism provided by an embodiment of the present utility model;

FIG. 5 is a schematic cross-sectional view of a stopper according to an embodiment of the present utility model;

FIG. 6 is a schematic top view of a buffer column according to an embodiment of the present utility model;

fig. 7 is a schematic cross-sectional view of a buffer column according to an embodiment of the present utility model.

In the figure: 1. a bridge body; 2. a bottom plate; 3. a first buffer mechanism; 4. a mounting plate; 5. a second buffer mechanism; 6. a fixing plate; 11. an arc deceleration strip; 21. a buffer column; 211. an inner cavity; 212. a first spring; 213. a fixed shaft; 214. a chute; 31. a limiting hole; 32. an outer cylinder; 33. a limiting block; 34. a limiting mechanism; 35. an inner rod; 36. a second spring; 321. a fifth spring; 341. a telescopic block; 342. a step hole; 343. a third spring; 41. a telescopic rod; 42. an adjustment tank; 411. a fourth spring; 413. a slide; 51. a connecting block; 52. and (5) a hinged plate.

Detailed Description

For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.

The mechanism of the present utility model will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 7, the vibration damper for bridge widening construction provided by the embodiment of the utility model comprises a bridge body 1, wherein a mounting plate 4 is arranged at the lower end of the bridge body 1, a fixing plate 6 is connected to the upper end surface of the mounting plate 4, second buffer mechanisms 5 are respectively arranged at the left side and the right side of the fixing plate 6, the fixing plate 6 is connected with the bridge body 1 through the second buffer mechanisms 5, a bottom plate 2 is arranged at the lower end of the mounting plate 4, first buffer mechanisms 3 are respectively connected to four corners of the upper end surface of the bottom plate 2, the upper end of the first buffer mechanisms 3 penetrates through the mounting plate 4 to be connected with the second buffer mechanisms 5, a buffer column 21 is connected to the middle part of the upper end surface of the bottom plate 2, an inner cavity 211 is arranged at the upper end surface of the buffer column 21, a telescopic rod 41 with buffer mechanisms is movably connected to the inner cavity 211, the upper end of the telescopic rod 41 sequentially penetrates through the mounting plate 4 and the fixing plate 6 to be connected with the bridge body 1, a fourth spring 411 is sleeved on the outer wall of the upper end of the fixing plate 6, and the two ends of the fourth spring 411 are respectively connected with the bridge body 1 and the fixing plate 6. The utility model effectively ensures the whole damping effect, slows down the vibration between new and old bridges, avoids the collapse of the bridge body 1 caused by the stress caused by the vibration, and ensures the construction quality.

As shown in fig. 1 to 4, the upper end surface of the bridge body 1 is connected with an arc deceleration strip 11, the outer walls of the front side and the rear side of the fixed plate 6 are respectively provided with an adjusting groove 42, the second buffer mechanism 5 comprises two groups of hinge plates 52 which are symmetrically arranged, each group of hinge plates 52 is arranged in two, the hinge plates 52 are positioned on the front side and the rear side of the fixed plate 6, the lower ends of the hinge plates 52 are hinged with the fixed plate 6 and extend into the adjusting grooves 42, the outer wall of one corresponding side of the other end of each hinge plate 52 is hinged with a connecting block 51, the connecting block 51 is connected to the lower end of the bridge body 1, the first buffer mechanism 3 comprises an outer cylinder 32 fixedly connected to the upper end of the bottom, limiting holes 31 are correspondingly arranged on the outer wall of the outer cylinder 32, an inner rod 35 is arranged in the outer cylinder 32, one end of the inner rod 35 positioned in the outer cylinder 32 is connected with a limiting block 33, the lower end of the limiting block 33 is connected with a fifth spring 321, the lower end of the fifth spring 321 is connected with the inner wall of the outer cylinder 32, one end of the inner rod 35 positioned outside the outer cylinder 32 penetrates through 4 and is fixedly connected with the connecting block 51, the upper end of the inner rod 35 is positioned at the outer end of the second spring 36 and the second spring 36 is positioned at the two ends of the mounting plate 1 and the mounting plate 36 are respectively connected with the mounting plate 1; through the arc deceleration strip 11 that sets up, be convenient for the vehicle when crossing the way from the bridge body 1, make the bridge body 1 drive connecting block 51 downwardly moving, connecting block 51 downwardly moving drives the inside removal of interior pole 35 towards outer section of thick bamboo 32, thereby drive stopper 33, stopper 33 drives fifth spring 321 compression, drive second spring 36 downwardly compressing when connecting block 51 downwardly moving, be convenient for realize carrying out damping buffering to the wall body, and utilize articulated slab 52 on the connecting block 51, articulated slab 52 is moved in adjusting slot 42, be convenient for remove according to connecting block 51 and adjust, improve the stability of connecting block 51.

As shown in fig. 4 to 5, the outer wall of the limiting block 33 is symmetrically provided with a limiting mechanism 34, the limiting mechanism 34 includes a step hole 342 disposed on the outer wall of the limiting block 33, a telescopic block 341 is connected inside the step hole 342, one end of the telescopic block 341 located inside the step hole 342 is connected with a third spring 343, the other end of the third spring 343 is connected with the inner wall of the step hole 342, and one end of the telescopic block 341 extending to the outside of the step hole 342 is engaged with the limiting hole 31; under the influence of the stress of the bridge body 1, the limiting block 33 is driven to stretch out and draw back the telescopic block 341 in the process of moving inside the outer cylinder 32, the telescopic block 341 is far away from the influence of the contact stress of the limiting hole 31 and the inner wall of the outer cylinder 32, the third spring 343 is driven to shrink inwards towards the step hole 342, the fifth spring 321 is convenient to compress, and when the influence of the stress of the bridge body 1 is avoided, the fifth spring 321 is buffered and reset, the limiting block 33 is convenient to drive to reset, so that the step hole 342 corresponds to the limiting hole 31, the third spring 343 is convenient to rebound, and the telescopic block 341 is driven to stretch into the inside of the limiting hole 31 to limit, so that the stability of the first buffer mechanism 3 is improved.

As shown in fig. 6 to 7, the inner wall of the buffer column 21 is correspondingly provided with a sliding groove 214, the sliding grooves 214 are positioned at the left side and the right side of the inner cavity 211 and are mutually communicated, a fixed shaft 213 is connected inside the sliding groove 214, the inner wall of the lower end of the inner cavity 211 is connected with a plurality of first springs 212, the upper ends of the first springs 212 are connected with a telescopic rod 41, the outer wall of the telescopic rod 41 is symmetrically connected with sliding seats 413, and the sliding seats 413 are in sliding connection with the fixed shaft 213; under the influence of the stress of the bridge body 1, the telescopic rod 41 is driven to shrink in the downward movement process, so that the fourth spring 411 is compressed downward, meanwhile, the telescopic rod 41 is driven to move downward in the inner cavity 211, the first spring 212 is compressed, the sliding seats 413 on two sides are utilized to slide on the fixed shaft 213, and the stability in the buffering process is improved in the whole vibration reduction effect of the bridge body 1.

The working principle of the utility model is as follows:

when the bridge body 1 is in use, under the influence of impact force, the bridge body 1 drives the connecting block 51 to move downwards, the connecting block 51 moves downwards to drive the inner rod 35 to move inwards of the outer cylinder 32, thereby driving the limiting block 33, the limiting block 33 drives the fifth spring 321 to compress, the second spring 36 is driven to compress downwards while the connecting block 51 moves downwards, vibration reduction and buffering of a wall body are facilitated, the hinged plate 52 on the connecting block 51 is utilized, the hinged plate 52 moves inside the adjusting groove 42, adjustment is facilitated according to the movement of the connecting block 51, stability of the connecting block 51 is improved, the telescopic rod 41 is driven to shrink under the influence of impact force in the process of moving downwards, the fourth spring 411 is driven to compress downwards while the telescopic rod 41 is driven to move downwards inside the inner cavity 211, the first spring 212 is compressed, and the sliding seat 413 on two sides slides on the fixed shaft 213, and stability in the buffering process is improved while the whole vibration reduction effect of the bridge body 1 is improved.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 (10)

1. The utility model provides a bridge widens vibration damper for construction, includes the bridge body (1), its characterized in that: the utility model discloses a bridge body (1), including installation board (4), installation board (4) up end, fixed plate (6) left and right sides all are equipped with second buffer gear (5), fixed plate (6) are connected with bridge body (1) through second buffer gear (5), installation board (4) lower extreme is equipped with bottom plate (2), the four corners of bottom plate (2) up end all is connected with first buffer gear (3), first buffer gear (3) upper end runs through installation board (4) and is connected with second buffer gear (5), the middle part of bottom plate (2) up end is connected with buffer post (21), buffer post (21) up end is equipped with inside concave cavity (211), inside swing joint of inner cavity (211) has telescopic link (41) of taking buffer gear, telescopic link (41) upper end runs through installation board (4), fixed plate (6) and bridge body (1) in proper order, telescopic link (41) are located the outer wall cover of fixed plate (6) upper end and are equipped with fourth spring (411) and fourth spring (6) and both ends are connected with bridge body (1) respectively.

2. The vibration damping device for bridge widening construction as recited in claim 1, wherein: the upper end face of the bridge body (1) is connected with an arc-shaped deceleration strip (11).

3. The vibration damping device for bridge widening construction as recited in claim 1, wherein: the outer walls of the front side and the rear side of the fixed plate (6) are respectively provided with an adjusting groove (42).

4. The vibration damping device for bridge widening construction as recited in claim 1, wherein: the second buffer mechanism (5) comprises two groups of hinge plates (52) which are symmetrically arranged, each group of hinge plates (52) is arranged in two, the hinge plates (52) are positioned on the front side and the rear side of the fixed plate (6), the lower ends of the hinge plates (52) are hinged with the fixed plate (6) and extend to the inside of the adjusting groove (42), a connecting block (51) is hinged to the outer wall of one side corresponding to the other end of each hinge plate (52), and the connecting block (51) is connected to the lower end of the bridge body (1).

5. The vibration damping device for bridge widening construction as recited in claim 1, wherein: the first buffer mechanism (3) comprises an outer cylinder (32) fixedly connected to the upper end of the bottom, a limiting hole (31) is correspondingly formed in the outer wall of the outer cylinder (32), an inner rod (35) is arranged inside the outer cylinder (32), one end of the inner rod (35) located inside the outer cylinder (32) is connected with a limiting block (33), the lower end of the limiting block (33) is connected with a fifth spring (321), the lower end of the fifth spring (321) is connected with the inner wall of the lower end of the outer cylinder (32), and one end of the inner rod (35) located outside the outer cylinder (32) penetrates through a mounting plate (4) and is fixedly connected with a connecting block (51).

6. The vibration damping device for bridge widening construction as recited in claim 5, wherein: the outer wall of the inner rod (35) positioned at the upper end of the mounting plate (4) is sleeved with a second spring (36), and two ends of the second spring (36) are respectively connected with the bridge body (1) and the mounting plate (4).

7. The vibration damping device for bridge widening construction as recited in claim 6, wherein: limiting block (33) outer wall symmetry is equipped with stop gear (34), stop gear (34) are including setting up step hole (342) at limiting block (33) outer wall, step hole (342) internally connected has flexible piece (341), the one end that flexible piece (341) are located step hole (342) inside is connected with third spring (343), third spring (343) other end and step hole (342) inner wall connection, flexible piece (341) extend to the outside one end of step hole (342) and agree with spacing hole (31).

8. The vibration damping device for bridge widening construction as recited in claim 1, wherein: the inner wall of the buffer column (21) is correspondingly provided with a chute (214), and the chute (214) is positioned at the left side and the right side of the inner cavity (211) and communicated with each other.

9. The vibration damping device for bridge widening construction as recited in claim 8, wherein: the sliding groove (214) is internally connected with a fixed shaft (213).

10. The vibration damping device for bridge widening construction as recited in claim 9, wherein: the inner wall of the lower end of the inner cavity (211) is connected with a plurality of first springs (212), the upper ends of the first springs (212) are connected with a telescopic rod (41), the outer wall of the telescopic rod (41) is symmetrically connected with a sliding seat (413), and the sliding seat (413) is in sliding connection with a fixed shaft (213).