CN215758515U - Bridge expansion device for ballast track - Google Patents
Bridge expansion device for ballast track Download PDFInfo
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- CN215758515U CN215758515U CN202122389191.3U CN202122389191U CN215758515U CN 215758515 U CN215758515 U CN 215758515U CN 202122389191 U CN202122389191 U CN 202122389191U CN 215758515 U CN215758515 U CN 215758515U
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- bridge
- water stop
- rubber
- expansion device
- cover plate
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Abstract
The utility model belongs to a bridge expansion device, and particularly relates to a bridge expansion device for a ballast track. Comprises a rubber waterstop and a cover plate; the rubber waterstop is located bridge beam-ends clearance top and its both ends are laid respectively in beam-ends upper surface, and the apron has been laid to rubber waterstop upper surface, and the tiny fragments of stone press that the rubber waterstop both ends set up through the apron top is located beam-ends upper surface and is realized closely laminating rather than. The utility model solves the problems of long construction period, complex structure, high cost and the like of the existing line transformation in the prior art, and has the advantages of simple structure, low cost of the existing line transformation, short construction period and the like.
Description
Technical Field
The utility model belongs to a bridge expansion device, and particularly relates to a bridge expansion device for a ballast track.
Background
Most of the existing freight railways are ballast tracks, wherein a plurality of bridge beam ends are not provided with a telescopic device, and a steel cover plate is only placed at the expansion joint of the beam ends so as to be beneficial to bearing the pressure of ballast to the expansion joint. Because the gap exists between the steel cover plate and the contact surface of the beam head to cause the waterproof loss between the seams, rainwater and melted snow water can leak downwards along the beam end, which is particularly easy to cause the corrosion and rusting of the beam end and the bridge support of the bridge to cause diseases, reduce the service life of the bridge and particularly easily cause freeze-thaw harm in winter.
The TB/T3435-2016 discloses a railway concrete bridge beam end waterproof device, wherein the classification, the structural form and the like of the beam end waterproof device are limited in the standard, a ballast track beam end waterproof device is provided with a ballast blocking steel cover plate to prevent ballast from accumulating on the top surface of the waterproof device to influence the normal work of the waterproof device, and the railway concrete bridge beam end waterproof device is structurally composed of main components such as special-shaped profiles, waterproof rubber belts and locking strips thereof, anchor bars, steel cover plates, cover plate positioning bolts and the like. The existing standard has the technical defects of complex structure, long construction period and the like when the existing line is transformed.
The applicant does not find patent literature reports relevant to the present application in domestic patent databases.
Disclosure of Invention
The utility model aims to provide a bridge expansion device for a ballast track, which achieves the purposes of simplifying the structure of a waterproof device, reducing the construction cost and shortening the construction period by optimizing the structural design.
The overall technical concept of the utility model is as follows:
the bridge expansion device for the ballast track comprises a rubber waterstop and a cover plate; the rubber waterstop is located bridge beam-ends clearance top and its both ends are laid respectively in beam-ends upper surface, and the apron has been laid to rubber waterstop upper surface, and the tiny fragments of stone press that the rubber waterstop both ends set up through the apron top is located beam-ends upper surface and is realized closely laminating rather than.
The applicant needs to say that the sealing band can adopt various cross-sectional shapes with waterproof function, including but not limited to adopting V-shape, W-shape, U-shape, etc., and the hollow cavity can adopt various structural forms such as cross-sectional circle, ellipse or polygon, etc., and therefore it belongs to the prior art, and the applicant does not need to describe here any more.
The specific technical concept of the utility model is as follows:
apron, rubber waterstop, bridge beam-ends three realize the close cooperation of pasting under tiny fragments of stone, coal, etc. dead weight pressure and rubber deformation factor, and then prevent that rainwater, snow water and debris from getting into, realize for further the sealed between apron and the rubber waterstop, preferred technical implementation means is, the rubber waterstop and the apron adjacent part of bridge beam-ends clearance both sides be equipped with the bar seal member, the adjacent part of bar member and rubber waterstop and apron is closely laminated. The applicant needs to say that the cross section of the bar-shaped member, which is arranged along the beam end gap direction, may adopt various shapes such as a circle, an ellipse, a polygon, a circle segment, an ellipse segment and the like, which can achieve the above functions.
The strip-shaped sealing component can be a separately formed component, and can also be realized by adopting the following technical means, and the strip-shaped sealing component and the rubber water stop belt are integrally formed. The strip-shaped sealing component can be made of one or a combination of rubber, metal, glass fiber reinforced plastic or other non-metal materials.
In order to further improve the waterproof effect between the rubber water stop and the beam end, the preferable technical implementation means is that the gap between the beam end of the bridge and the adjacent part of the rubber water stop are coated with waterproof glue.
The technical progress achieved by the utility model is as follows:
1. the utility model ingeniously utilizes the characteristics of the dead weight of the ballast stone and the deformation of the rubber material after being pressed to realize the sealing among the beam end, the water stop belt and the cover plate, has simple integral structure and low cost, and can complete the reconstruction of the existing line within a maintenance window period on the premise of meeting the waterproof effect tested by an applicant.
2. By adopting the strip-shaped sealing component and the technical measures of coating the waterproof glue, the sealing effect between the adjacent parts is further improved.
Drawings
Fig. 1 is a structural schematic diagram of the rubber water stop belt of the utility model with a U-shaped cross section.
Fig. 2 is a schematic structural view of the rubber water stop of the present invention having a W-shaped cross section and employing an independently formed metal core strip seal member.
Fig. 3 is a schematic structural diagram of the rubber water stop of the present invention, which has a U-shaped cross section and employs an integrally formed rubber strip-shaped sealing member.
Fig. 4 is a schematic structural diagram of the rubber water stop belt of the utility model with a U-shaped cross section and adopting an independently formed non-metal strip-shaped sealing component.
The reference numbers in the drawings are as follows:
1. a rubber waterstop; 2. a strip-shaped sealing member; 3. a cover plate; 4. and (5) ballast stones.
Detailed Description
The accompanying drawings are included to provide a further understanding of the embodiments of the utility model, and are incorporated in and constitute a part of this specification.
Example 1
The embodiment comprises a rubber water stop and a cover plate; the rubber waterstop 1 is located above the gap of the bridge beam end, the two ends of the rubber waterstop are respectively paved on the upper surface of the beam end, the cover plate 3 is paved on the upper surface of the rubber waterstop 1, and the two ends of the rubber waterstop 1 are pressed on the upper surface of the beam end through the ballast stones 4 arranged above the cover plate 3 and are tightly attached to the upper surface of the beam end. The cross section of the rubber water stop adopts a U shape.
The bridge beam end gap and the adjacent part of the rubber water stop belt 1 are coated with waterproof glue.
Example 2
This example differs from example 1 in that: the rubber waterstop 1 and 3 adjacent portions of apron of bridge beam end clearance both sides be equipped with bar sealing member 2, bar sealing member 2 and rubber waterstop 1 and the close laminating of 3 adjacent portions of apron. The bar-shaped members 2 are at least two arranged in parallel along the beam end gap direction, and the cross section of the bar-shaped members 2 can be circular. The cross section of the rubber water stop adopts a W shape.
The strip-shaped sealing component adopts a separately formed component, and the material of the strip-shaped sealing component 2 is the material of metal core coated with rubber.
The rest of the structure is the same as in example 1.
Example 3
This example differs from example 2 in that: the bar-shaped component 2 is two of at least parallel distribution along the beam-ends clearance direction setting, and the cross section of bar-shaped component 2 adopts the circle to lack the shape, bar-shaped sealing component 2 and rubber waterstop integrated into one piece, and the rubber material is selected for use to bar-shaped sealing component 2's material.
The cross section of the rubber water stop adopts a U shape.
The rest of the structure is the same as in example 2.
Example 4
This example differs from example 2 in that: the bar-shaped component 2 is two of at least parallel distribution along the beam-ends clearance direction setting, and the cross section of bar-shaped component 2 adopts the ellipse, and the bar-shaped seal component adopts the component of shaping alone, and the material of metal core outsourcing rubber is selected for use to the material of bar-shaped seal component 2.
The cross section of the rubber water stop adopts a U shape.
The rest of the structure is the same as in example 1.
Claims (4)
1. The bridge expansion device for the ballast track comprises a rubber waterstop and a cover plate; the bridge water stop belt is characterized in that the rubber water stop belt (1) is positioned above a gap of a bridge beam end, two ends of the rubber water stop belt are respectively paved on the upper surface of the beam end, a cover plate (3) is paved on the upper surface of the rubber water stop belt (1), and two ends of the rubber water stop belt (1) are pressed on the upper surface of the beam end through ballast stones (4) arranged above the cover plate (3) and are tightly attached to the upper surface of the beam end.
2. The bridge expansion device for the ballast track according to claim 1, wherein a strip-shaped sealing member (2) is arranged at the adjacent part of the rubber water stop (1) and the cover plate (3) at the two sides of the bridge end gap, and the strip-shaped sealing member (2) is tightly attached to the adjacent part of the rubber water stop (1) and the cover plate (3).
3. The bridge expansion device for the ballast track according to claim 2, wherein the strip-shaped sealing member (2) is integrally formed with the rubber water stop (1).
4. The bridge expansion device for the ballast track according to claim 1, wherein a joint portion between the bridge beam end gap and the rubber water stop (1) is coated with waterproof glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122389191.3U CN215758515U (en) | 2021-09-30 | 2021-09-30 | Bridge expansion device for ballast track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122389191.3U CN215758515U (en) | 2021-09-30 | 2021-09-30 | Bridge expansion device for ballast track |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215758515U true CN215758515U (en) | 2022-02-08 |
Family
ID=80092365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122389191.3U Active CN215758515U (en) | 2021-09-30 | 2021-09-30 | Bridge expansion device for ballast track |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215758515U (en) |
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2021
- 2021-09-30 CN CN202122389191.3U patent/CN215758515U/en active Active
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