一种适用于预制箱涵的接口结构
By setting an embedded structure of inner and outer rings at the interface of the precast box culvert, and combining it with a water-stopping closed loop and sealing materials, a double-layer waterproof structure is formed, which solves the leakage problem at the interface of the precast culvert, simplifies the construction, achieves the waterproof effect of the interface, and simplifies the construction process.
CN224514082UActive Publication Date: 2026-07-17NANCHANG URBAN PLANNING & DESIGN RES INST GRP CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANCHANG URBAN PLANNING & DESIGN RES INST GRP CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing precast box culvert joints are prone to water leakage and are complicated to construct. Existing sealing methods have problems such as large gaps or complicated construction.
Method used
The inner ring is embedded in the inner ring groove, and the outer ring is embedded in the outer ring groove. A first water-stopping closed ring and a second water-stopping closed ring are set. Combined with a rubber sealing ring, an asphalt cork ring and polysulfide elastic sealant, a double-layer waterproof structure is formed and fixed with bolts and steel plates.
Benefits of technology
It achieves effective waterproofing of the precast box culvert joints, and can be reinstalled after aging, ensuring long-term water-stopping effect and simplifying the construction process.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224514082U_ABST
Abstract
本实用新型公开一种适用于预制箱涵的接口结构，包括有两预制箱涵；每一预制箱涵的一端形成有内环槽和外环体，该外环体位于内环槽的外围并相对内环槽轴向凸出，每一预制箱涵的另一端形成有内环体和外环槽，该外环槽位于内环体的外围，两预制箱涵拼接后，该内环体嵌于内环槽中，该外环体嵌于外环槽中，且在拼接处设置有第一止水闭环第二止水闭环，该第二止水闭环露于预制箱涵的内侧。通过将内环体嵌于内环槽中，将外环体嵌于外环槽中，并配合设置第一止水闭环和第二止水闭环，实现双层防水结构，能有效解决预制箱涵节段间接头漏水的问题，并且老化后也可以凿出第二止水闭环进行重新安装，以长久保证箱涵接口止水。
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