Drainage blind pipe construction positioning tool

CN222576683UActive Publication Date: 2025-03-07CHINA RAILWAY NO 3 GRP CO LTD +1
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Patent Information

Application Number
CN202421501608.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-27
Publication Date
2025-03-07
Estimated Expiration
2034-06-27

AI Technical Summary

Technical Problem

In railway tunnel construction, the low side wall and gutter cable trough construction is carried out in two batches, resulting in insufficient length of blind pipe joints and requires chiseling of joints, resulting in low construction efficiency, damage to concrete integrity and increase labor costs.

Method used

A drainage blind pipe construction positioning tool is designed, including a die, a stop ring, a pressure plate and an inner top bolt. By abutting the rotary lock nut and the inner convex part, the precise positioning and fixing of the blind pipe on the low-side wall formwork is achieved.

Benefits of technology

Significantly improve construction efficiency, eliminate the removal of concrete surfaces of low-side walls, ensure construction quality, widely adaptable and reusable, and reduce labor costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222576683U_ABST
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Abstract

The utility model provides a positioning tool for drainage blind pipe construction, and belongs to the technical field of tunnel drainage blind pipe construction. The drainage blind pipe construction positioning tool comprises a female die, baffle rings, a pressing plate and an inner jacking bolt, a sleeve is arranged in the female die, a mounting hole used for placing the female die is formed in a tunnel small side wall formwork, the baffle rings are arranged at the upper end and the lower end of the two sides of the mounting hole correspondingly, the baffle rings are of a U-shaped structure, and the pressing plate is arranged on the pressing plate. The two baffle rings are arranged on the female die, the two ends of each baffle ring are fixedly connected with a small side wall formwork, the two pressing plates are used for being inserted into the two baffle rings on the upper portion and the two baffle rings on the lower portion respectively, and the inner jacking bolts are arranged between the female die and the pressing plates and used for jacking the female die into the mounting holes. The utility model has the advantages that the construction efficiency is greatly improved, the chiseling of the concrete surface of the short side wall is avoided, the construction quality is ensured, the adaptability is wide, and the reutilization is realized.
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