Segment repair device (prestressed basalt cored screw)
CN309414442SActive Publication Date: 2025-08-01张伟
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Patent Information
- Application Number
- CN202430730837.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2039-11-19
Smart Images
Figure 000005_ABST
Abstract
1. Name of the design product: Segment repair device (prestressed basalt cored screw). 2. Use of the design product: For prestress reinforcement at the joints of shield segments and toughening of the overall segments. 3. Design key points of the design product: Lies in the combination of shape and pattern. 4. Picture or photograph that best shows the design key points: Stereogram.
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