CN213389695U

CN213389695U - Town road maintenance bridge simply supported beam construction structures

Info

Publication number: CN213389695U
Application number: CN202022092933.1U
Authority: CN
Inventors: 李雅媚; 曲军涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-06-08
Anticipated expiration: 2030-09-22

Abstract

The utility model belongs to the technical field of the town road, especially be a town road maintenance bridge simple beam construction structures, including the bridge support column, the fixed surface of bridge support column is connected with the supporting baseplate, the fixed surface of supporting baseplate is connected with the shock attenuation board, the activity storehouse has been seted up in the shock attenuation board, activity storehouse inner wall is fixedly connected with first telescopic link; the utility model discloses, through setting up the shock attenuation board, the expansion bracket, backup pad and third spring, when the bridge body takes place to shake, under the effect of impact force, thereby it removes to drive the expansion bracket, and then drive first movable block and second movable block and remove, under the effect of first spring and second spring, thereby cushion the impact force that the bridge body vibrations produced, can drive the backup pad removal simultaneously when the expansion bracket removes, under the effect of third spring, thereby cushion again the impact force that the bridge body vibrations produced, the service life of bridge body has been improved.

Description

Town road maintenance bridge simply supported beam construction structures

Technical Field

The utility model belongs to the technical field of the town road, concretely relates to town road maintenance bridge simple beam construction structures.

Background

In the construction of the simply supported beam of the road and bridge, two ends of a finger beam are placed on supports, the supports only restrain the vertical displacement of the beam, the beam end can rotate freely, in order to prevent the whole beam from moving horizontally, horizontal restraint is additionally arranged at one end, the supports at the position are called hinged supports, the supports at the other end without horizontal restraint are called rolling supports, the simply supported beam is a supporting structure, the supports at the two ends only provide vertical restraint and do not provide corner restraint, the simply supported beam is only restrained by the hinged supports at the two ends and mainly bears positive bending moment, the simply supported beam is generally a static structure, additional internal force cannot be generated in the beam due to system temperature change, concrete shrinkage creep, stretching prestress, support movement and the like, the stress is simple, and the simply supported beam is a mechanical simplified model.

Bridge beam supports plays very big effect in the shock attenuation of bridge, but current bridge beam supports shock-absorbing structure is single, and the shock attenuation effect is poor, and the stability of whole support is not good, and the limitation is great.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a town road maintenance bridge simple beam construction structures has stable in structure, multiple buffering absorbing characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: a construction structure of a simply supported beam of a municipal road maintenance bridge comprises a bridge support column, wherein a support bottom plate is fixedly connected to the upper surface of the bridge support column, a damping plate is fixedly connected to the upper surface of the support bottom plate, a movable bin is arranged in the damping plate, a first telescopic rod is fixedly connected to the inner wall of the movable bin, a first spring is sleeved on the surface of the first telescopic rod, a first movable block is fixedly connected to the other end of the first telescopic rod, a telescopic frame is movably connected to the first movable block through a pin shaft, a movable groove is formed in the surface of the movable bin, the telescopic frame is arranged in the movable groove in a penetrating mode, a second telescopic rod is fixedly connected to the inner wall of the movable bin, a second spring is sleeved on the surface of the second telescopic rod, a second movable block is fixedly connected to the other end of the second telescopic rod, and the second movable block and, the damping plate upper surface fixedly connected with block rubber pad, the damping plate is total two sets of, and the symmetrical arrangement is at block rubber pad upper and lower surface, another group first movable block and expansion bracket pass through round pin axle swing joint, another group second movable block and expansion bracket pass through round pin axle swing joint.

Preferably, the expansion bracket side fixedly connected with backup pad, activity storehouse inner wall fixedly connected with third telescopic link, the third spring has been cup jointed on the third telescopic link surface, the third telescopic link is worn to establish in the activity groove, the upper end fixed connection of third telescopic link is at the backup pad lower surface, another group the shock attenuation board upper surface fixedly connected with supporting roof, supporting roof upper surface fixedly connected with bridge body.

Preferably, the supporting baseplate upper surface fixedly connected with bearing, wear to be equipped with the pivot in the bearing, the other end fixedly connected with handle of pivot, the other end fixedly connected with screw thread post of handle, screw thread post surface threaded connection has the screwed pipe, the upper end fixed connection of screwed pipe is on the supporting baseplate upper surface, screw thread post and screwed pipe respectively have a plurality ofly, and align to grid is in the supporting baseplate upper end.

Preferably, the supporting bottom plate, the supporting top plate and the damping plate are square, and the rubber block pad is annular and matched with the damping plate.

Preferably, the bridge support columns are four groups in total and are arranged at the lower end of the bridge body in a rectangular shape.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses, through setting up the shock attenuation board, the expansion bracket, backup pad and third spring, when the bridge body takes place vibrations, under the effect of impact force, thereby drive the expansion bracket to remove, and then drive first movable block and second movable block to remove, under the effect of first spring and second spring, thereby cushion the impact force that the bridge body vibrations produced, simultaneously can drive the backup pad to remove when the expansion bracket removes, under the effect of third spring, thereby cushion the impact force that the bridge body vibrations produced again, the life of bridge body has been improved, through setting up handle, screw post and screwed pipe, when people need to change the bridge beam supports, people need to twist the handle, thereby drive the screw post and rotate, under the cooperation of screw post and screwed pipe, thereby make screw post and screwed pipe replace the bridge beam supports atress, make things convenient for people to change the bridge beam supports, the practicability of the device is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

in the figure: 1. supporting columns of the bridge; 2. a support base plate; 3. a damper plate; 4. a movable bin; 5. a first telescopic rod; 6. a first spring; 7. a first movable block; 8. a telescopic frame; 9. a movable groove; 10. a second telescopic rod; 11. a second spring; 12. a second movable block; 13. a rubber block pad; 14. a support plate; 15. a third telescopic rod; 16. a third spring; 17. supporting a top plate; 18. a bridge body; 19. a bearing; 20. a rotating shaft; 21. a grip; 22. a threaded post; 23. a threaded pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-2, the present invention provides the following technical solutions: a construction structure of a simply supported beam of a municipal road maintenance bridge comprises a bridge support column 1, wherein a support bottom plate 2 is fixedly connected to the upper surface of the bridge support column 1, a damping plate 3 is fixedly connected to the upper surface of the support bottom plate 2, a movable bin 4 is arranged in the damping plate 3, a first telescopic rod 5 is fixedly connected to the inner wall of the movable bin 4, a first spring 6 is sleeved on the surface of the first telescopic rod 5, a first movable block 7 is fixedly connected to the other end of the first telescopic rod 5, a telescopic frame 8 is movably connected to the first movable block 7 through a pin shaft, a movable groove 9 is formed in the surface of the movable bin 4, the telescopic frame 8 penetrates through the movable groove 9, a second telescopic rod 10 is fixedly connected to the inner wall of the movable bin 4, a second spring 11 is sleeved on the surface of the second telescopic rod 10, and a second movable block 12 is fixedly connected to the other end of the, second movable block 12 and expansion bracket 8 are through round pin axle swing joint, fixed surface is connected with rubber block pad 13 on the 3 shock attenuation boards, shock attenuation board 3 is total two sets ofly, and the symmetrical arrangement surface about rubber block pad 13, another group first movable block 7 and expansion bracket 8 are through round pin axle swing joint, another group second movable block 12 and expansion bracket 8 are through round pin axle swing joint.

Specifically, a supporting plate 14 is fixedly connected to the side surface of the telescopic frame 8, a third telescopic rod 15 is fixedly connected to the inner wall of the movable bin 4, a third spring 16 is sleeved on the surface of the third telescopic rod 15, the third telescopic rod 15 is arranged in the movable slot 9 in a penetrating manner, the upper end of the third telescopic rod 15 is fixedly connected to the lower surface of the supporting plate 14, a supporting top plate 17 is fixedly connected to the upper surface of the other group of damping plates 3, a bridge body 18 is fixedly connected to the upper surface of the supporting top plate 17, and by arranging the damping plates 3, the telescopic frame 8, the supporting plate 14 and the third spring 16, when the bridge body 18 vibrates, under the action of an impact force, the telescopic frame 8 is driven to move, so as to drive the first movable block 7 and the second movable block 12 to move, under the action of the first spring 6 and the second spring 11, so as to buffer the impact force generated by, meanwhile, the expansion bracket 8 can drive the supporting plate 14 to move while moving, and under the action of the third spring 16, impact force generated by vibration of the bridge body 18 is buffered again, so that the service life of the bridge body 18 is prolonged.

Concretely, 2 upper surface fixedly connected with bearings 19 on the supporting baseplate, wear to be equipped with pivot 20 in the bearing 19, the other end fixedly connected with handle 21 of pivot 20, the other end fixedly connected with screw thread post 22 of handle 21, screw thread post 22 surface threaded connection has screwed pipe 23, through setting up handle 21, screw thread post 22 and screwed pipe 23, when people need to change bridge beam supports, people need to twist handle 21 to drive screw thread post 22 and rotate, under the cooperation of screw thread post 22 and screwed pipe 23, thereby make screw thread post 22 and screwed pipe 23 replace the bridge beam supports atress, make things convenient for people to change bridge beam supports, improved the device's practicality, the upper end fixed connection of screwed pipe 23 is on supporting baseplate 17 upper surface, screw thread post 22 and screwed pipe 23 respectively have a plurality ofly, and align to grid is in supporting baseplate 2 upper ends.

Specifically, supporting baseplate 2, supporting roof 17 and damper plate 3 are square, and rubber block pad 13 is the annular, and just matches with damper plate 3.

Specifically, the bridge support columns 1 are four groups in total and are arranged at the lower end of the bridge body 18 in a rectangular shape.

The utility model discloses a theory of operation and use flow: when the utility model is used, when the bridge body 18 vibrates, under the action of the impact force, the expansion bracket 8 is driven to move, the first movable block 7 and the second movable block 12 are driven to move, under the action of the first spring 6 and the second spring 11, the impact force generated by the vibration of the bridge body 18 is buffered, the support plate 14 is driven to move while the expansion bracket 8 moves, under the action of the third spring 16, the impact force generated by the vibration of the bridge body 18 is buffered again, simultaneously, under the action of the third connecting rod, the threaded column 22 and the threaded pipe 23, the firmness of the bridge can be increased, further, the safety hazard is avoided, when people need to replace the bridge support, the handle 21 needs to be screwed by people, the threaded column 22 is driven to rotate, under the matching of the threaded column 22 and the threaded pipe 23, the threaded column 22 and the threaded pipe 23 replace the stress of the bridge support, the device is convenient for people to replace and improves the practicability of the device.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a town road maintenance bridge simple beam construction structures, includes bridge support column (1), its characterized in that: the upper surface of the bridge supporting column (1) is fixedly connected with a supporting bottom plate (2), the upper surface of the supporting bottom plate (2) is fixedly connected with a damping plate (3), a movable bin (4) is arranged in the damping plate (3), the inner wall of the movable bin (4) is fixedly connected with a first telescopic rod (5), the surface of the first telescopic rod (5) is sleeved with a first spring (6), the other end of the first telescopic rod (5) is fixedly connected with a first movable block (7), the first movable block (7) is movably connected with a telescopic frame (8) through a pin shaft, the surface of the movable bin (4) is provided with a movable groove (9), the telescopic frame (8) is arranged in the movable groove (9) in a penetrating manner, the inner wall of the movable bin (4) is fixedly connected with a second telescopic rod (10), the surface of the second telescopic rod (10) is sleeved with a second spring (11), the other end of the second telescopic rod (10) is fixedly connected with a second, second movable block (12) and expansion bracket (8) are through round pin axle swing joint, fixed surface is connected with block rubber pad (13) on damper plate (3), damper plate (3) are total two sets ofly, and the symmetrical arrangement surface about block rubber pad (13), another group first movable block (7) and expansion bracket (8) are through round pin axle swing joint, another group second movable block (12) and expansion bracket (8) are through round pin axle swing joint.

2. The municipal road maintenance bridge simply supported beam construction structure of claim 1, wherein: expansion bracket (8) side fixedly connected with backup pad (14), activity storehouse (4) inner wall fixedly connected with third telescopic link (15), third spring (16) have been cup jointed on third telescopic link (15) surface, third telescopic link (15) are worn to establish in activity groove (9), the upper end fixed connection of third telescopic link (15) is in backup pad (14) lower surface, another group fixed surface is connected with supporting roof (17) on damper plate (3), fixed surface is connected with bridge body (18) on supporting roof (17).

3. The municipal road maintenance bridge simply supported beam construction structure of claim 1, wherein: fixed surface is connected with bearing (19) on supporting baseplate (2), wear to be equipped with pivot (20) in bearing (19), other end fixedly connected with handle (21) of pivot (20), other end fixedly connected with screw thread post (22) of handle (21), screw thread post (22) surface threaded connection has screwed pipe (23), the upper end fixed connection of screwed pipe (23) is at supporting roof (17) upper surface, screw thread post (22) and screwed pipe (23) respectively have a plurality ofly, and align to grid is in supporting baseplate (2) upper end.

4. The municipal road maintenance bridge simply supported beam construction structure of claim 1, wherein: the supporting bottom plate (2), the supporting top plate (17) and the damping plate (3) are square, and the rubber block pad (13) is annular and is matched with the damping plate (3).

5. The municipal road maintenance bridge simply supported beam construction structure of claim 1, wherein: the bridge support columns (1) are four in number and are arranged at the lower end of the bridge body (18) in a rectangular shape.