一种建筑工程预埋外露钢筋防锈结构
By combining a sheath and an end cap, the problem of low efficiency in rust prevention treatment of steel bar ends is solved, enabling rapid sealing and reuse, thus improving construction efficiency and component safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO TENGYUAN DESIGN ACCOUNTANTS CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-17
AI Technical Summary
In existing construction projects, the rust prevention treatment of the ends of steel bars is inefficient, and traditional sheaths cannot be reused, which affects construction efficiency and component safety performance.
It adopts a combination structure of sheath and end cap, with a fixed connecting spring on the end cap. The spring has a closing force, which, together with the reinforcing ribs and binding parts, enables the quick sealing of the end of the rebar. The end cap can be replaced according to the size of the rebar to improve the reuse rate.
It improves the efficiency and reusability of rust prevention treatment at the ends of reinforcing bars, enhances the installation stability and waterproof effect of the sheath, extends the service life of the spring clips, and ensures the safety performance of the components.
Smart Images

Figure CN224514564U_ABST
Abstract
Claims
1. A rust-proof structure for embedded exposed steel bars in construction engineering, comprising a sheath (1) sleeved on the steel bars, characterized in that, It also includes end caps (2) installed at the ends of the reinforcing bars. Among them, the end cap (2) is fixedly connected with a spring piece (3), the spring piece (3) has an extended free end, the free end has an elastic force that converges towards the center of the end cap (2), when the end cap (2) is covered on the sleeve (1), multiple sets of spring pieces (3) cover the outer surface of the sleeve (1) and form a covering force on the sleeve (1).
2. The rust-proof structure for embedded exposed steel bars in construction engineering according to claim 1, characterized in that, A reinforcing rib (5) is fixedly connected to the spring piece (3), and the plane of the reinforcing rib (5) is perpendicular to the plane of the spring piece (3).
3. The rust-proof structure for embedded exposed steel bars in construction engineering according to claim 1 or 2, characterized in that, The ratio of the length of the spring piece (3) to the diameter of the steel bar is 1.5-2:
1.
4. The rust-prevention structure for embedded and exposed steel bars in construction engineering according to claim 3, characterized in that, The end cap (2) has a groove (6) provided, and there are multiple grooves (6).
5. The rust-proof structure for embedded exposed steel bars in construction engineering according to claim 3, characterized in that, The number of the spring pieces (3) is 3-6, and they are distributed in a circular pattern at equal intervals on the end face of the end cap (2).
6. The rust-proof structure for embedded exposed steel bars in construction engineering according to claim 1, characterized in that, It also includes a binding element that wraps around the sheath (1).
7. The rust-proof structure for embedded exposed steel bars in construction engineering according to claim 6, characterized in that, The binding material is a cable tie (4) or a metal wire tie.
8. The rust-prevention structure for embedded and exposed steel bars in construction engineering according to claim 1, characterized in that, The sheath (1) is made of PVC, EPE or EPS.