A new threaded metal bellows joint and its construction method

A metal bellows and screw-shaped technology, which is applied in the direction of buildings, building reinforcements, building components, etc., can solve problems affecting the quality of prestressed construction, blockage of prestressed pipes, and leakage of grout, so as to achieve reliable connection, reliability and The effect of effective sealing connection effect

CN112832464BActive Publication Date: 2022-05-13CHINA MCC17 GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2022-05-13

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Abstract

The invention discloses a brand-new threaded metal bellows joint and a construction method, belonging to the technical field of building construction. The present invention includes a connecting pipe body that is matched and connected with the corrugated pipe through threads. A fixing ring is fixed inside the connecting pipe body. Sealing elements are arranged on both sides of the fixing ring. Through the connecting pipe body and the to-be-connected The corrugated pipe is connected through threaded matching connection, and the positioning ring is used to control the connection length and the seal to realize the reliable and effective sealing connection effect of the corrugated pipe to be connected, and the connecting pipe body and the corrugated pipe are not easy to fall off after being connected.
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Description

technical field

[0001] The invention relates to the technical field of building construction, in particular to a brand-new threaded metal bellows joint and a construction method. Background technique

[0002] Prestressing is a common construction technique used in large-span and overhanging structures. After the installation of the prestressed pre-embedded pipeline is completed, during the pouring concrete construction process, the grout leakage at the joint of the bellows will cause blockage or even blockage in the prestressed pipeline, which seriously affects the quality of the prestressed construction.

[0003] The currently commonly used bellows connection method is to use a larger bellows, and the two ends are sealed with tapes. However, when the bellows is pulled, dragged, etc., it is easy to fall off or there is a gap in the tape, resulting in slurry leakage. How to avoid the occurrence of the above-mentioned problems, it is very important to ensure that the connecti...

Examples

Embodiment 1

[0033] Such as Figure 1 to Figure 5 As shown, a brand-new threaded metal bellows joint includes a connecting pipe body 1 that is threadedly matched with the bellows, and a fixed ring 2 is fixed inside the connecting pipe body 1, and two Both sides are provided with seals 3 . The positioning ring 2 is used to control the connection length and the sealing member 3 realizes a reliable and effective sealing connection effect for the corrugated pipe to be connected, and realizes the effect that the connecting pipe body 1 and the corrugated pipe are not easy to fall off after being connected.

[0034] In a further preferred solution of this embodiment, both ends of the connecting pipe body 1 are provided with an anti-disengagement assembly, and the anti-disengagement assembly includes a fixing piece 6 fixedly installed at the end of the connecting pipe body 1 and a rotatably connected fixing piece 6 The inner anti-off piece 4 is provided with a torsion spring at the rotational con...

Embodiment 2

[0042] A construction method for a brand-new threaded metal bellows joint, comprising the following steps:

[0043] A. First, adjust the adjusting member 12 to push the fixed frame 13 to move along the guide channel 11 to the side close to the central axis of the connecting pipe body 1. During the process, the clamping part 152 of the clamp claw 15 will be affected by the guide channel 11 along the length direction of the guide rail 16. Moving inwardly, the guide portion 151 also moves inwardly along the length direction of the guide rail 16 and compresses the return spring 17;

[0044] B. Secondly, adjust the position of the positioning pin 10 so that it is separated from a set of positioning holes 8 on the side close to the central axis of the bellows, and move to a set of positioning holes 8 on the side away from the central axis of the bellows and align with the positioning holes there. 8, and then the bellows to be connected and the connecting pipe body 1 are threaded unt...