CN217810500U

CN217810500U - Expansion joint for highway bridge

Info

Publication number: CN217810500U
Application number: CN202222124663.7U
Authority: CN
Inventors: 韩阳阳; 李�瑞; 王凛
Original assignee: Hengshui Ruiguan Rubber And Plastic Co ltd
Current assignee: Hengshui Ruiguan Rubber And Plastic Co ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2022-11-15
Anticipated expiration: 2032-08-12

Abstract

The utility model discloses an expansion joint for public road bridge roof beam, including fishback one, fishback two, anchor board one, anchor board two, dust guard and supporting mechanism, anchor board one sets up fishback one's downside, anchor board two sets up the downside of fishback two, fishback one with be provided with flexible interval between the fishback two, the dust guard sets up flexible interval's downside, anchor board two is close to one side of anchor board one is provided with the mount table, the upside of mount table is provided with and is located the dust guard downside supporting mechanism. The utility model adopts the above structure an expansion joint for public road bridge roof beam, the bearing structure of dust guard has the pliability, and tensile strength and compressive capacity are good, and the life at extension expansion joint reduces the maintenance cost at expansion joint.

Description

Expansion joint for highway bridge

Technical Field

The utility model relates to a bridge expansion joint technical field especially relates to a public road bridge is expansion joint for roof beam.

Background

Because of the influence of a series of external load effects such as indoor and outdoor temperature change, concrete deformation, shrinkage and automobile dynamic load, the length of the bridge body can be changed, so that the bridge end is displaced. In order to adapt to the displacement and keep the whole beam body stable, the driving is safe and comfortable, and the expansion joint must be arranged at a reasonable position in the bridge structure. Since the highway bridges are located outdoors, the bridge bodies are easily deformed by various influence factors, and if the deformation is excessive, the safety of the bridge bodies is directly affected, and therefore, in order to adjust the displacement between the upper structures and the coupling between the upper structures, which are caused by the load of vehicles, environmental characteristics, and physical properties of bridge construction materials, expansion joints must be provided.

The gap exists between the two panels of the existing expansion joint, and in order to prevent dust and impurities on the road surface from falling into the gap to affect use, the dustproof plate is usually arranged below the gap, the fixing device of the dustproof plate is usually a supporting block, the tensile strength of the dustproof plate is weak, the dustproof plate cannot deform after being stressed, the dustproof plate is extremely easy to break, the supporting of the dustproof plate is affected, even the supporting block falls into the gap after being cracked to affect the use of the expansion joint, the expansion joint needs to be maintained in time, time and labor are consumed, and the maintenance cost of the highway bridge is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a public road bridge expansion joint for roof beam, the bearing structure of dust guard has the pliability, and tensile strength and compressive capacity are good, and the life at extension expansion joint reduces the maintenance cost at expansion joint.

In order to achieve the purpose, the utility model provides an expansion joint for a highway bridge, which comprises a first comb plate, a second comb plate, a first anchoring plate, a second anchoring plate, a dust-proof plate and a supporting mechanism, wherein the first anchoring plate is arranged on the lower side of the first comb plate, the second anchoring plate is arranged on the lower side of the second comb plate, a telescopic space is arranged between the first comb plate and the second comb plate, the dust-proof plate is arranged on the lower side of the telescopic space, one side of the first anchoring plate, which is close to the second anchoring plate, is provided with an installation table, and the upper side of the installation table is provided with the supporting mechanism positioned on the lower side of the dust-proof plate;

the supporting mechanism comprises an inverted L-shaped fixing plate, a supporting transverse plate and an arched supporting plate, the L-shaped fixing plate is fixedly connected to the upper side of the mounting table, the arched supporting plate is arranged on the upper side of the L-shaped fixing plate, the top of the arched supporting plate is connected with the supporting transverse plate through a connecting block, and the upper side of the supporting transverse plate is connected with the dustproof plate in a butting mode.

Preferably, the upper sides of the comb plate I and the comb plate II are provided with drainage grooves.

Preferably, one side of the first anchoring plate close to the second anchoring plate is provided with a first reinforcing plate, and one side of the mounting table is provided with a second reinforcing plate.

Preferably, the dust guard includes slide one and slide two, one side of slide one with reinforcing plate one fixed connection, one side of slide two with L shape fixed plate fixed connection, slide one sets up the downside of flexible interval, slide two sets up the upside of support diaphragm, slide one sliding connection be in the upside of slide two.

Preferably, one side of the first reinforcing plate is fixedly connected with a guide post, one side of the second reinforcing plate is fixedly connected with a guide sleeve, a buffer spring is arranged in the guide sleeve, and one end, far away from the first reinforcing plate, of the guide post extends into the guide sleeve and is connected with the buffer spring.

Therefore, the utility model adopts the above structure an expansion joint for public road bridge roof beam, the downside of dust guard is provided with supporting mechanism, supporting mechanism's bow-shaped backup pad has the pliability, anti-stretching property and compressive capacity are good, produce stress deformation behind the atress, thereby avoid its atress too big and cause fracture and breakage, improve supporting mechanism's support stability, extension supporting mechanism's life, reduce the maintenance cost at expansion joint, it cooperates with the uide bushing to be provided with the guide post between reinforcing plate one and the reinforcing plate two, improve the stability of first and second fishback, prevent first and second fishback from taking place the dislocation.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic view of an embodiment of an expansion joint for a highway bridge of the present invention;

fig. 2 is a schematic top view of an embodiment of an expansion joint for a road bridge.

Reference numerals:

1. a comb plate I; 2. a comb plate II; 3. anchoring the first plate; 4. a second anchoring plate; 5. a dust-proof plate; 501. a first sliding plate; 502. a second sliding plate; 6. a support mechanism; 601. an L-shaped fixing plate; 602. supporting the transverse plate; 603. connecting blocks; 604. an arcuate support plate; 605. a bolt; 7. a water discharge tank; 8. an installation table; 9. a first reinforcing plate; 10. a second reinforcing plate; 11. a guide post; 12. a guide sleeve; 13. a buffer spring; 14. a limiting plate; 15. an exhaust hole; 16. and (7) forming a fabrication hole.

Detailed Description

The technical solution of the present invention is further explained by the accompanying drawings and examples.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Examples

Fig. 1 is the utility model relates to a schematic diagram of expansion joint embodiment for public road bridge roof beam, fig. 2 is the utility model relates to a overlook the schematic diagram of expansion joint embodiment for public road bridge roof beam, as shown in the figure, the utility model provides an expansion joint for public road bridge roof beam, including fishback 1, fishback two 2, anchor board one 3, anchor board two 4, dust guard 5 and supporting mechanism 6, be provided with the even tooth's socket of a plurality of distribution on the fishback 1, be provided with a plurality of evenly distributed's tooth on the fishback two 2, tooth sliding connection is in the tooth's socket. Be provided with flexible interval between fishback 1 and the fishback two 2 to guarantee that the tooth slides in the tooth's socket, guarantee the concertina movement normal clear at expansion joint. The upside of fishback 1, fishback two 2 all is provided with water drainage tank 7, makes the both sides that water can discharge the highway, avoids surface ponding, causes the damage to the roadbed. Comb plate one all is provided with exhaust hole 15 with two distolateral of comb plate two, the circulation of the air of being convenient for when pouring cement to make cement pouring more evenly closely knit, improve the holistic stability of telescoping device. The middle parts of the first comb plate and the second comb plate are provided with process holes 16, and the process holes 16 are fixed through screws, so that the first comb plate 1 and the second comb plate 2 can be conveniently fixed and stitched.

Anchor plate 3 sets up in the downside of fishback 1, and anchor plate two 4 set up in the downside of fishback two 2, and welded connection is all passed through with the bottom of fishback 1, the top of anchor plate two 4 and the bottom of fishback two 2 on the top of anchor plate 3, and fishback 1, fishback two 2 are connected with way board or roof beam board through anchor plate 3, anchor plate two 4 respectively. The dust guard 5 sets up the downside at flexible interval, prevents debris such as dust on the road surface from falling into extending structure in, guarantees extending structure's normal use. One side of the second anchor plate 4 close to the first anchor plate 3 is provided with a mounting table 8, and the upper side of the mounting table 8 is provided with a supporting mechanism 6 positioned on the lower side of the dust-proof plate 5, so that the supporting strength of the dust-proof plate 5 is improved. The mounting table 8 is provided with two symmetrically arranged limiting plates 14, and the supporting mechanism 6 is arranged between the two limiting plates 14, so that the supporting mechanism 6 is limited, and the supporting mechanism 6 is prevented from being deviated.

The supporting mechanism 6 comprises an inverted L-shaped fixing plate 601, a supporting transverse plate 602 and an arched supporting plate 604, wherein the L-shaped fixing plate 601 is fixedly connected to the upper side of the mounting table 8, the arched supporting plate 604 is arranged on the upper side of the L-shaped fixing plate 601, the top of the arched supporting plate 604 is connected with the supporting transverse plate 602 through a connecting block 603, and the upper side of the supporting transverse plate 602 is connected with the dust-proof plate 5 in an abutting mode. The bottom plate of the arched supporting plate 604 is connected with the L-shaped fixing plate 601 through a bolt 605, and the arched supporting plate 604 is connected with the supporting cross plate 602 through the connecting block 603 to press the supporting cross plate 602 against the lower side of the dust-proof plate 5, so that the supporting cross plate 602 can stably support the dust-proof plate 5. The arched supporting plate 604 has flexibility, good tensile resistance and pressure resistance, and can generate stress deformation after being stressed, thereby avoiding fracture and breakage caused by overlarge stress. The support stability of the support mechanism 6 is improved, the service life of the support mechanism 6 is prolonged, and the maintenance cost of the expansion joint is reduced.

One side of the first anchoring plate 3 close to the second anchoring plate 4 is provided with a first reinforcing plate 9, and one side of the mounting table 8 is provided with a second reinforcing plate 10. The dust-proof plate 5 comprises a first sliding plate 501 and a second sliding plate 502, one side of the first sliding plate 501 is fixedly connected with a first reinforcing plate 9, one side of the second sliding plate 502 is fixedly connected with an L-shaped fixing plate 601, the first sliding plate 501 is arranged on the lower side of the telescopic distance, the second sliding plate 502 is arranged on the upper side of a supporting transverse plate 602, and the first sliding plate 501 is slidably connected with the upper side of the second sliding plate 502. Thereby be convenient for slide 501 to follow fishback 1 and remove, slide two 502 follows fishback two 2 and removes, slide 501 and slide two 502 superpose mutually, further improve the result of use of dust guard 5, strengthen the device's practicality.

One side fixedly connected with guide post 11 of reinforcing plate one 9, one side fixedly connected with uide bushing 12 of reinforcing plate two 10 is provided with buffer spring 13 in the uide bushing 12, and the one end that reinforcing plate one 9 was kept away from to the guide post 11 extends to and is connected with buffer spring 13 in the uide bushing 12, and guide

post

11 and 12 sliding connection of uide bushing, when the expansion joint warp, the guide post plays the guide effect with the sleeve, avoids fishback 1 and fishback two 2 to take place the dislocation. Meanwhile, the buffer spring 13 can play a role in buffering, and stability of the guide post 11 is improved.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.

Claims

1. An expansion joint for highway bridges, which is characterized in that: the anchor plate fixing device comprises a first comb plate, a second comb plate, a first anchor plate, a second anchor plate, a dustproof plate and a supporting mechanism, wherein the first anchor plate is arranged on the lower side of the first comb plate, the second anchor plate is arranged on the lower side of the second comb plate, a telescopic space is formed between the first comb plate and the second comb plate, the dustproof plate is arranged on the lower side of the telescopic space, a mounting table is arranged on one side, close to the first anchor plate, of the second anchor plate, and the supporting mechanism located on the lower side of the dustproof plate is arranged on the upper side of the mounting table;

the supporting mechanism comprises an inverted L-shaped fixing plate, a supporting transverse plate and an arched supporting plate, wherein the L-shaped fixing plate is fixedly connected to the upper side of the mounting table, the arched supporting plate is arranged on the upper side of the L-shaped fixing plate, the top of the arched supporting plate is connected with the supporting transverse plate through a connecting block, and the upper side of the supporting transverse plate is connected with the dust-proof plate in a propping mode.

2. An expansion joint for road bridges as claimed in claim 1, wherein: and the upper sides of the comb plate I and the comb plate II are provided with drainage grooves.

3. An expansion joint for road bridges as claimed in claim 1, wherein: one side of the first anchoring plate close to the second anchoring plate is provided with a first reinforcing plate, and one side of the mounting table is provided with a second reinforcing plate.

4. An expansion joint for road bridges as claimed in claim 3, wherein: the dustproof plate comprises a first sliding plate and a second sliding plate, one side of the first sliding plate is fixedly connected with a first reinforcing plate, one side of the second sliding plate is fixedly connected with an L-shaped fixing plate, the first sliding plate is arranged on the lower side of the telescopic space, the second sliding plate is arranged on the upper side of the supporting transverse plate, and the first sliding plate is slidably connected to the upper side of the second sliding plate.

5. An expansion joint for road bridges as claimed in claim 3, wherein: the guide post is fixedly connected to one side of the first reinforcing plate, the guide sleeve is fixedly connected to one side of the second reinforcing plate, a buffer spring is arranged in the guide sleeve, and one end, far away from the first reinforcing plate, of the guide post extends into the guide sleeve and is connected with the buffer spring.