CN216663781U

CN216663781U - Waterproof construction bridge expansion joint

Info

Publication number: CN216663781U
Application number: CN202123314144.9U
Authority: CN
Inventors: 袁松涛; 栾加友
Original assignee: Jiangsu Progressive Concrete Prefabricated Component Co ltd
Current assignee: Jiangsu Progressive Concrete Prefabricated Component Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-06-03
Anticipated expiration: 2031-12-27

Abstract

The utility model relates to the technical field of civil engineering, in particular to a waterproof structure bridge expansion joint, which overcomes the defect of poor water stop effect of the existing expansion joint and comprises a first bridge and a second bridge, wherein waterproof cloth and a waterproof cover are paved between the tops of the first bridge and the second bridge, a waterproof rubber strip penetrating through and extending to the other side of the first bridge and the second bridge is arranged at the bottom of the waterproof cover, an expansion bolt is sequentially arranged in the waterproof cover in a threaded manner and is inserted into the waterproof rubber strip to press a hard silica gel strip into an expansion silica gel strip, so that the expansion silica gel strip can be abutted against a water guide strip arranged between the first bridge and the second bridge and is led out through a drainage groove to form double waterproof, and when the expansion silica gel strip is worn, the expansion silica gel strip can be compensated due to the elasticity of the expansion silica gel strip, and can be prevented from being extruded between the bridges, The damage caused by expansion or vibration is long in service life.

Description

Waterproof construction bridge expansion joint

Technical Field

The utility model relates to the technical field of civil engineering, in particular to a waterproof structure bridge expansion joint.

Background

In the prior art, the water dredging and guiding devices mainly used for highway bridges in China mainly comprise metals, rubbers, composite materials and the like. In actual use, metals are easy to rust, rubbers are easy to harden and become brittle in the insolation and extremely cold outdoor environment, and the composite material has high manufacturing cost and cannot be used in a large area. And when the dredging devices are installed, the dredging devices are directly pressed below the road surface expansion device for fixing, so that the road surface expansion device generates height difference. When the vehicle passes through, the vehicle is easy to jump, the whole structure is influenced, the driving comfort is poor, and the problems of short service life, difficult maintenance and the like are caused.

Although the two sides of the water stop band are provided with the water stop balls and are wrapped and fixed by the filling layer, the rainwater cannot be completely prevented from leaking out from the joint surface between the water stop band and the filling layer.

Because the whole roll of water stop belt is paved and installed along the length direction of the expansion joint, the paved water stop belt is a whole piece, and once a part of the water stop belt is damaged locally, the whole piece of water stop belt needs to be replaced. Because the waterstop is wrapped and fixed in a concrete pouring filling layer, not only the replacement work is time-consuming and labor-consuming, but also the maintenance and updating cost is very high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defect of poor water stopping effect of the existing expansion joint, and provides a bridge expansion joint with a waterproof structure.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a waterproof construction bridge expansion joint, includes first bridge and second bridge, laid tarpaulin and waterproof cover between the top of first bridge and second bridge, the bottom of waterproof cover is provided with the waterproof rubber strip that runs through and extend to first bridge and second bridge opposite side, and the inside of waterproof cover is fixed with a plurality of expansion bolts that run through in the waterproof rubber strip, the upper and lower outside of waterproof rubber strip all is provided with the expansion silica gel strip, the inside packing of expansion silica gel strip has the stereoplasm silica gel strip, and there are two vaulting poles at the both ends of waterproof rubber strip still movable mounting, the tip of vaulting pole is connected with the guide pulley through the pivot, and the welding of one side of vaulting pole has the loop bar, the inside of loop bar is provided with buffer spring, still is provided with the telescopic link between the loop bar of two vaulting poles.

Preferably, a groove is formed between the first bridge and the second bridge, a water guide strip is laid through the groove, and the end part of the expansion silica gel strip is abutted to the surface of the water guide strip.

Preferably, the water guide strip is arranged above the expansion silica gel strip and provided with a drainage groove.

Preferably, the expansion bolt is connected in the waterproof rubber strip through threads, and the hard silica gel strip is abutted to the inside of the expansion silica gel strip through the expansion bolt.

Preferably, two ends of the buffer spring are respectively abutted against the inner wall of the loop bar and the end part of the telescopic bar.

Preferably, two ends of the waterproof rubber strip are connected with the two support rods in a cross mode through rotating shafts.

The utility model has the beneficial effects that:

1. the expansion bolts are sequentially arranged in the waterproof cover in a threaded manner and are inserted into the waterproof rubber strips to press the hard silica gel strips into the expansion silica gel strips, so that the expansion silica gel strips can be propped against the water guide strips arranged between the first bridge and the second bridge and are led out through the drainage grooves, double waterproof is formed, after the expansion silica gel strips are abraded, compensation operation can be performed on the expansion silica gel strips due to elasticity of the expansion silica gel strips, meanwhile, damage caused by extrusion, expansion or vibration between the bridges can be prevented, and the service life is longer;

2. the bracing piece that sets up is connected through the pivot at the both ends of waterproof rubber strip to at the tip installation guide pulley of bracing piece, the guide pulley is contradicted with the water guide strip, and cushions through loop bar, telescopic link and buffer spring, can effectively offset extrusion, inflation and vibration between first bridge and the second bridge, the practicality is strong.

Drawings

FIG. 1 is a schematic view of a waterproof bridge expansion joint according to the present invention;

FIG. 2 is a schematic side view of a waterproof rubber strip for a waterproof bridge expansion joint;

fig. 3 is a schematic view of a partial cross-sectional structure at a point a in fig. 1 of the bridge expansion joint with the waterproof structure according to the present invention.

In the figure: 1. a first bridge; 2. a second bridge; 3. waterproof cloth; 4. a waterproof cover; 5. a waterproof rubber strip; 6. an expansion bolt; 7. a water conducting strip; 8. expanding the silica gel strip; 9. hard silica gel strips; 10. a drainage groove; 11. a rotating shaft; 12. a stay bar; 13. a guide wheel; 14. a loop bar; 15. a telescopic rod; 16. a buffer spring.

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.

Referring to fig. 1-3, a waterproof structure bridge expansion joint comprises a first bridge 1 and a second bridge 2, a waterproof cloth 3 and a waterproof cover 4 are laid between the tops of the first bridge 1 and the second bridge 2, a waterproof rubber strip 5 penetrating through and extending to the other side of the first bridge 1 and the second bridge 2 is arranged at the bottom of the waterproof cover 4, a plurality of expansion bolts 6 penetrating through the waterproof rubber strip 5 are fixed inside the waterproof cover 4, expansion silica gel strips 8 are arranged on the outer sides of the upper part and the lower part of each waterproof rubber strip 5, hard silica gel strips 9 are filled inside the expansion silica gel strips 8, two support rods 12 are movably mounted at two ends of each waterproof rubber strip 5, the end parts of the support rods 12 are connected with guide wheels 13 through rotating shafts, sleeve rods 14 are welded at one sides of the support rods 12, buffer springs 16 are arranged inside the sleeve rods 14, and telescopic rods 15 are arranged between the sleeve rods 14 of the two support rods 12;

set up flutedly between first bridge 1 and the second bridge 2, it has laid water guide strip 7 through the recess, expansion silica gel strip 8's tip is contradicted with water guide strip 7 surface, water guide strip 7 is located expansion silica gel strip 8's top and has seted up drainage groove 10, expansion bolt 6 passes through threaded connection in waterproof rubber strip 5, stereoplasm silica gel strip 9 supports into expansion silica gel strip 8's inside through expansion bolt 6, buffer spring 16's both ends are contradicted with the inner wall of loop bar 14 and the tip of telescopic link 15 respectively, two vaulting poles 12 of 11 cross connection in pivot are passed through at waterproof rubber strip 5's both ends.

In the embodiment, the expansion bolts 6 are sequentially screwed into the waterproof cover 4 and inserted into the waterproof rubber strips 5 to press the hard silica gel strips 9 into the expansion silica gel strips 8, so that the expansion silica gel strips 8 can abut against the water guide strips 7 arranged between the first bridge 1 and the second bridge 2 and are led out through the drainage grooves 10 to form double waterproof, and after the expansion silica gel strips 8 are worn, the expansion silica gel strips can perform compensation operation due to elasticity of the expansion silica gel strips, and can prevent damage caused by extrusion, expansion or vibration between the bridges, so that the service life is longer;

further, the both ends of waterproof rubber strip 5 are connected the vaulting pole 12 of cross arrangement through pivot 11 to at the tip installation guide pulley 13 of vaulting pole 12, guide pulley 13 contradicts with water guide strip 7, and cushion through loop bar 14, telescopic link 15 and buffer spring 16, can effectively offset extrusion, inflation and the vibration between first bridge 1 and the second bridge 2, the practicality is strong.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A waterproof structure bridge expansion joint comprises a first bridge (1) and a second bridge (2), and is characterized in that waterproof cloth (3) and a waterproof cover (4) are laid between the tops of the first bridge (1) and the second bridge (2), waterproof rubber strips (5) penetrating through and extending to the other side of the first bridge (1) and the second bridge (2) are arranged at the bottom of the waterproof cover (4), a plurality of expansion bolts (6) penetrating through the waterproof rubber strips (5) are fixed inside the waterproof cover (4), expansion silica gel strips (8) are arranged on the outer sides of the upper portion and the lower portion of each waterproof rubber strip (5), hard silica gel strips (9) are filled inside the expansion silica gel strips (8), two support rods (12) are movably mounted at the two ends of each waterproof rubber strip (5), and guide wheels (13) are connected to the end portions of the support rods (12) through rotating shafts, one side welding of vaulting pole (12) has loop bar (14), the inside of loop bar (14) is provided with buffer spring (16), still is provided with telescopic link (15) between loop bar (14) of two vaulting poles (12).

2. The bridge expansion joint with the waterproof structure as claimed in claim 1, wherein a groove is formed between the first bridge (1) and the second bridge (2), a water guide strip (7) is laid through the groove, and the end of the expansion silica gel strip (8) is abutted against the surface of the water guide strip (7).

3. The bridge expansion joint with the waterproof structure as claimed in claim 2, wherein the drainage groove (10) is formed in the water guide strip (7) above the expansion silica gel strip (8).

4. The waterproof structure bridge expansion joint of claim 1, wherein the expansion bolt (6) is connected in the waterproof rubber strip (5) through a thread, and the hard silica gel strip (9) is abutted into the expansion silica gel strip (8) through the expansion bolt (6).

5. The bridge expansion joint with waterproof structure as claimed in claim 1, wherein both ends of the buffer spring (16) are respectively abutted against the inner wall of the loop bar (14) and the end of the expansion bar (15).

6. The bridge expansion joint with waterproof structure as claimed in claim 1, wherein the two ends of the waterproof rubber strip (5) are cross-connected with the two support rods (12) through the rotating shaft (11).