Changeable retractor device for railroad bridge

A telescopic device and bridge technology, applied in bridges, bridge construction, bridge parts, etc., can solve the problems of damaged waterproof belts, difficult installation, inability to replace, etc., and achieve large clamping force reserve, protection performance guarantee, and good waterproof performance. Effect

CN102787556AInactive Publication Date: 2012-11-21CHINA RAILWAY ERYUAN ENG GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2012-11-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a changeable retractor device for a railroad bridge. A waterproof ribbon can be conveniently changed under a track base plate or a track bed under the condition of keeping normal use of a top track structure. The device comprises a pair of connection strips (20) fixed on two side walls of a contraction joint (60) via an anchorage member (40) and a waterproof ribbon (10) with two edges connected with the connection strips (20), wherein the connection strips (20) are provided with anchorage grooves (21) stretching towards a full length direction. Downward convex anchorage location bosses (11) are arranged at two edges of the waterproof ribbon (10), and the section shapes of the anchorage location bosses (11) are matched with the section shapes of lower grooves (21a) of the anchorage grooves (21); two edges of the waterproof ribbon (10) are pulled into the anchorage grooves (21) from the longitudinal ends of the connection strips (20); and a lock strip (30) is pressed in a gap between the upper surface of the waterproof ribbon (10) and the tops of the anchorage grooves (21) so that the waterproof ribbon (10) is in anchored connection with the connection strips (20).
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Description

Technical field

[0001] The invention relates to a railway bridge, in particular to a replaceable expansion device for expansion joints between beam bodies of railway bridges. Background technique

[0002] Railway is the main artery of the national economy, and railway transportation has always served the society and the people. With the rapid development of the national economy, the state has given railway transportation more arduous tasks and higher standards. So far, China's existing railway operating mileage has reached 91,000 kilometers, and there are about 50,000 bridges over 4,000 kilometers. In newly-built railways, the total length of bridges accounts for an increasing proportion of the total line length. For example, the total length of the Beijing-Tianjin intercity railway bridge accounts for about 88% of the total line length, and the total length of the Beijing-Shanghai high-speed railway bridge accounts for about 81% of the total line length. Except for a small nu...

Examples

Embodiment Construction

[0023] The present invention will be further described below in conjunction with the drawings and embodiments.

[0024] Reference figure 1 , The replaceable telescopic device of the railway bridge of the present invention includes a pair of connecting strips 20 fixed on the two side walls of the expansion joint 60 by an anchoring member 40, and a waterproof belt 10 connected with the connecting strips 20 on both sides. 20 has an anchor groove 21 extending in the full length direction. Reference figure 1 , figure 2 with Figure 4 The two sides of the waterproof belt 10 have downwardly protruding anchor fixing bosses 11, and the cross-sectional shape of the anchor fixing boss 11 matches the cross-sectional shape of the groove 21 a under the anchor groove 21. The two sides of the waterproof tape 10 are pulled into the anchor groove 21 from the longitudinal end of the connecting strip 20, and the locking strip 30 is pressed into the space between the upper surface of the waterproof ...