Corrugated steel plate sealing structure and corrugated steel plate type pipeline sealing construction method
A corrugated steel plate, sealing structure technology, applied in the direction of pipes, pipe components, rigid pipes, etc., can solve the problems of inability to re-tighten, simultaneous rotation of nuts and bolts, and failure of the sealing protection layer, so as to facilitate the re-tightening and The effect of post-maintenance, material saving and damage reduction
Pending Publication Date: 2021-11-19
NANJING LIANZHONG CONSTR ENG TECH
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Problems solved by technology
When tightening, it is very easy for the nut and the bolt to rotate at the same time, which will cause the sealing protection layer outside the tube to tear and fail.
In addition, if the direction of the bolt is inconsistent or the nut is outside the pipe, it cannot be tightened again
Method used
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[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0026] Such as figure 2 In the corrugated steel plate sealing structure shown, the first corrugated steel plate 1 and the second corrugated steel plate 2 with the same wave form are laminated and overlapped to form a corrugated overlapping surface, and the crests or / and troughs of the corrugated overlapping surface are fixed by bolts and The bolts are inserted in the same direction.
[0027] Such as image 3 As shown, the bolt includes a bolt body 3 and a nut 4, the neck of the bolt body 3 protrudes toward the screw rod to form a first arc surface 301, and the first arc surface 301 is provided with a limiting rib 302, tightened Behind the nut 4, the limiting rib 302 is pressed against the edge of the screw hole to limit the angle and prevent the bolt body 3 from rotating. Four arc surfaces 301 are arranged at intervals in the circ...
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The invention discloses a corrugated steel plate sealing structure. A first corrugated steel plate and a second corrugated steel plate which are consistent in waveform are attached and connected in a lap joint mode to form a corrugated lap joint face, wave crests or / and wave troughs of corrugations of the corrugated lap joint face are fixed through bolts, and the insertion directions of the bolts are consistent; and each bolt comprises a bolt body and a nut, the neck of each bolt body protrudes towards a screw rod to form a first cambered face, limiting convex ribs are arranged on each first cambered face, and after the nuts are tightened, the limiting convex ribs are pressed on the edges of screw holes to achieve angle limiting to prevent rotation of the bolt bodies, and the positions, corresponding to the heads of the bolt bodies, of the corrugated lap joint face are coated with sealing leakage-proof protection layers. The invention further discloses a corrugated steel plate type pipeline sealing construction method. The limiting convex ribs at the necks of the bolts can ensure that the head parts of the bolts do not rotate and the sealing leakage-proof protection layers on the surface are not damaged when the nuts are secondarily fastened.
Description
technical field [0001] The invention relates to the technical field of pipeline waterproofing, in particular to a corrugated steel plate sealing structure and a corrugated steel plate type pipeline sealing construction method. Background technique [0002] Such as figure 1 As shown, the connection method of corrugated steel plate culverts or pipes is the way of laminating and lapping between plates, fastening the connection with bolts, and covering the outside of the pipe with a sealing protective layer. The bolt holes penetrate the pipe wall, and the bolt holes Water-tight sealing is a problem. Even if the inside and outside of the pipe wall are sealed, when the backfilling project outside the pipe starts, due to the existence of the gap between the bolt and the hole wall, and the joint stress of the pipe and soil, the bolt will be inclined and loose after the start of the joint force. Secondary tightening, in addition, the pipeline needs to be tightened twice for mainten...
Claims
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IPC IPC(8): F16L9/02F16L25/08F16L55/10
CPCF16L9/02F16L25/08F16L55/10
Inventor 战福军
Owner NANJING LIANZHONG CONSTR ENG TECH