CN201801810U - Drawable telescopic device used at end of railroad bridge - Google Patents
Drawable telescopic device used at end of railroad bridge Download PDFInfo
- Publication number
- CN201801810U CN201801810U CN2010205504806U CN201020550480U CN201801810U CN 201801810 U CN201801810 U CN 201801810U CN 2010205504806 U CN2010205504806 U CN 2010205504806U CN 201020550480 U CN201020550480 U CN 201020550480U CN 201801810 U CN201801810 U CN 201801810U
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- CN
- China
- Prior art keywords
- joint strip
- sealing joint
- connection chamber
- railroad bridge
- stretching device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of railroad bridges, and particularly relates to a drawable telescopic device used at an end of a railroad bridge, which comprises profile steel (2) and a sealing rubber strip (3), wherein the profile steel (2) is connected with an anchor rib (4). The drawable telescopic device is characterized in that the profile steel (2) is provided with a connection cavity (2a) with an opening inclining downwards; the cross section of the connection cavity (2a) has a large end and a small end, and the opening end is the small end; and two ends of the sealing rubber strip (3) are provided with connecting blocks (3a) that are in clearance fit with the large end of the connection cavity (2a) when being positioned at the large end of the connection cavity (2a) and are in tight fit with the small end of the connection cavity (2a) when being positioned at the small end of the connection cavity (2a).
Description
Technical field
The utility model belongs to the railroad bridge technical field, relates to a kind of drawing and pulling type stretching device that is used for the railroad bridge beam-ends concretely.
Background technology
In the construction of railroad bridge; owing to bridge beam body phenomenons such as the beam body elongates or shortens can occur in reason such as expanded with heat and contract with cold; so between bridge beam body and beam body, leave certain slit; usually increase displacement and the water-tight that stretching device adapts to beam body beam-ends in the end of bridge, be not subjected to the etch of rainwater with protection beam body substructure.
The railroad bridge stretching device is the important link between the railroad bridge beam-ends, and the flexible water resistance that reaches in bridge beam body end is played an important role, and its quality and water resistance will directly influence the durability of bed rearrangement bridge.
At present, the railway stretching device that domestic High-speed Railway Bridges is used mainly contains the little displacement railway stretching device and the TSSF800 of the single seam formula of TSSF30～TSSF160, big displacement railway stretching device such as TSSF720, the sealing joint strip of the little displacement railway stretching device of single seam formula all is in the shaped steel of the top embedding stretching device of stretching device, as Figure 10,11,12, shown in 13: sealing joint strip 10 is subjected to the restriction of the sealing means of self and shaped steel 11 structures, sealing joint strip 10 progressively inserts in shaped steel 11 connection chambers from top to bottom, form the purpose that interference fit reaches sealing with shaped steel, when this structure applies to ballastless track beam shrinkage joint and ballasted track beam shrinkage joint, replacing trouble very for sealing joint strip, because be II template 13 as the rail bed of ballastless track on beam body 12 as shown in Figure 4, just need when adopting original stretching device structure to change sealing joint strip earlier II template 13 to be pulled down and could be changed, the dismounting of II template 13 bothers very much.Equally, as shown in Figure 5, on beam body 14, be coated with ballast aggregate 15 for ballasted track, need first removing the ballast 15 to change when changing sealing joint strip, simultaneously, in last embedding shaped steel 11, the opening of shaped steel 11 is just big for ease of sealing joint strip 10, chucking power between sealing joint strip 10 and the shaped steel 11 is less, train by the time wind negative pressure that produces easily sealing joint strip 10 is extracted.
The utility model content
The purpose of this utility model provided a kind of simple in structure, when guaranteeing beam body stretching device sealing effectiveness, change the drawing and pulling type stretching device that conveniently is used for railway for its sealing joint strip.
The technical solution of the utility model is as follows:
A kind of drawing and pulling type stretching device that is used for the railroad bridge beam-ends comprises shaped steel and sealing joint strip, and described shaped steel is connected with dowel, and described shaped steel has the connection chamber of opening under oblique, and the cross section of this connection chamber is big or small two head ends, and wherein openend is little head end; Described sealing joint strip two ends have contiguous block, when this contiguous block is positioned at described connection chamber stub end and its formation matched in clearance, when being positioned at the connection chamber microcephaly and holding and its formation tight fit.
Adopt said structure, key be to the shape of sealing joint strip and shaped steel and between connected mode carried out new design, realized that sealing joint strip inserts and arrive the purpose of sealing performance from the shaped steel end, shrinkage joint for ballastless track or ballasted track does not just need to dismantle II template or removing the ballast like this, makes that the replacing of sealing joint strip is more convenient.The principle that realizes is: in the time will changing sealing joint strip; contiguous block by sealing joint strip penetrates from the shaped steel stub end; this part forms matched in clearance between the two; between the two frictional resistance is little when penetrating; after integral body penetrates; sealing joint strip is applied external force makes the contiguous block at two ends draw in to the centre; contiguous block will be held with the connection chamber microcephaly and form the purpose that interference fit arrives sealing this moment; promptly finished the purpose that the requirement of installing has also realized sealing simultaneously this moment; when if water flows into sealing joint strip; the active force of water makes contiguous block tightr with being connected of connection chamber; simultaneously; because the openend of shaped steel is less, the chucking power between sealing joint strip and the shaped steel is very big, can protect train by the time wind negative pressure that produces sealing joint strip can not extracted.
Described dowel is welded on the described shaped steel, and wherein said dowel is waveform or directly follows closely the shape structure.
Described sealing joint strip cross section is " U " type.
Described connection chamber cross section is interior big outer little taper surface or arc surface.
The arc surface of the outer rim of described contiguous block cross section for matching with described connection chamber.
Deformation section is band shape or box section during sealing joint strip displacement between described shrinkage joint.
Beneficial effect: the utility model is simple in structure, dismounting is easy for installation, be particularly useful for the dismounting and the replacing of sealing joint strip in the stretching device of ballasted track and ballastless track.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 mounting structure schematic diagram of the present utility model;
Fig. 1 is the structural representation of stretching device among Fig. 1;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is applied to the scheme of installation of ballastless track for the utility model;
Fig. 5 is applied to the scheme of installation of ballasted track for the utility model;
Fig. 6 inserts original state figure for the utility model sealing joint strip;
Fig. 7 is the state diagram of sealing joint strip insertion process;
Fig. 8 inserts completion status figure for sealing joint strip;
Fig. 9 is left view and the stress figure of Fig. 8;
Figure 10 is original stretching device scheme of installation in the background technology;
Figure 11 is the installation original state figure of original sealing joint strip;
Figure 12 is the installation process state diagram of original sealing joint strip;
Figure 13 is the installation original state figure of original sealing joint strip.
The specific embodiment
Shown in Fig. 1,2,3,4,5: a kind of drawing and pulling type stretching device that is used for the railroad bridge beam-ends, comprise shaped steel 2 and sealing joint strip 3, described shaped steel 2 is connected with dowel 4, described shaped steel 2 has the connection chamber 2a of opening under oblique, the cross section of this connection chamber 2a is big or small two head ends, and wherein openend is little head end; Described sealing joint strip 3 two ends have contiguous block 3a, when this contiguous block 3a is positioned at described connection chamber 2a stub end and its formation matched in clearance, when being positioned at connection chamber 2a microcephaly and holding and its formation tight fit.
Described dowel 4 is welded on the described shaped steel 2, and wherein said dowel 4 is for waveform or directly follow closely the shape structure.
Described sealing joint strip 3 cross sections are " U " type.
Described connection chamber 2a cross section is interior big outer little taper surface or arc surface.
The arc surface of the outer rim of described contiguous block 3a cross section for matching with described connection chamber 2a.
Deformation section is band shape or box section during sealing joint strip 3 displacements between described shrinkage joint.
As shown in Figure 1: shaped steel 2 is arranged in the both sides in two beam bodies, 1 end and beam-ends gap, and this dowel 4 is anchored in the beam body 1.
Be depicted as the step state diagram that sealing joint strip 3 is packed into as Fig. 6,7,8, as shown in Figure 9: F people when installing is the gravity of adhesive tape self for pretension, the G1 that provides, G2 is the gravity of water, guarantee that by above three aspects sealing joint strip and shaped steel fit tightly together, thereby reach the effect of sealing.
Claims (6)
1. drawing and pulling type stretching device that is used for the railroad bridge beam-ends, comprise shaped steel (2) and sealing joint strip (3), described shaped steel (2) is connected with dowel (4), it is characterized in that: described shaped steel (2) has the connection chamber (2a) of opening under oblique, the cross section of this connection chamber (2a) is big or small two head ends, and wherein openend is little head end; Described sealing joint strip (3) two ends have contiguous block (3a), when this contiguous block (3a) is positioned at described connection chamber (2a) stub end and its formation matched in clearance, are positioned at connection chamber (2a) when the microcephaly holds and its formation tight fit.
2. a kind of drawing and pulling type stretching device that is used for the railroad bridge beam-ends according to claim 1 is characterized in that: described dowel (4) is welded on the described shaped steel (2), and wherein said dowel (4) is for waveform or directly follow closely the shape structure.
3. a kind of drawing and pulling type stretching device that is used for the railroad bridge beam-ends according to claim 1 and 2 is characterized in that: described sealing joint strip (3) cross section is " U " type.
4. a kind of drawing and pulling type stretching device that is used for the railroad bridge beam-ends according to claim 1 is characterized in that: described connection chamber (2a) cross section is interior big outer little taper surface or arc surface.
5. a kind of drawing and pulling type stretching device that is used for the railroad bridge beam-ends according to claim 4 is characterized in that: the arc surface of the outer rim of described contiguous block (3a) cross section for matching with described connection chamber (2a).
6. according to claim 4 or 5 described a kind of drawing and pulling type stretching devices that are used for the railroad bridge beam-ends, it is characterized in that: deformation section is band shape or box section during the sealing joint strip between described shrinkage joint (3) displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205504806U CN201801810U (en) | 2010-09-30 | 2010-09-30 | Drawable telescopic device used at end of railroad bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205504806U CN201801810U (en) | 2010-09-30 | 2010-09-30 | Drawable telescopic device used at end of railroad bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201801810U true CN201801810U (en) | 2011-04-20 |
Family
ID=43871319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205504806U Expired - Fee Related CN201801810U (en) | 2010-09-30 | 2010-09-30 | Drawable telescopic device used at end of railroad bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201801810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956367A (en) * | 2010-09-30 | 2011-01-26 | 成都市新筑路桥机械股份有限公司 | Drawing-out retractor device for beam end of railroad bridge |
-
2010
- 2010-09-30 CN CN2010205504806U patent/CN201801810U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956367A (en) * | 2010-09-30 | 2011-01-26 | 成都市新筑路桥机械股份有限公司 | Drawing-out retractor device for beam end of railroad bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20180930 |