A precast pile post-grouting device
By introducing a pressure sensor and a check valve into the grouting device after precast piles, the problem of difficult control of grouting pressure was solved, a stable grouting process was achieved, and the grouting quality was improved.
CN224451648UActive Publication Date: 2026-07-03ZHONGSHAN CONSTR FIRST CONSTR DEV CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN CONSTR FIRST CONSTR DEV CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-03
AI Technical Summary
Technical Problem
The grouting pressure is difficult to control during the grouting of existing precast piles, which can easily lead to grout backflow or soil disturbance, affecting the grouting effect.
Method used
Design a grouting device for precast piles, equipped with a pressure sensor and a check valve. By real-time detection of grouting pressure and control of flow rate, backflow of grout is prevented. The device includes a pile body, a pile tip plate, a grout outlet steel pipe, a grout injector, and a grouting pipe. Ribs and filling medium are used to form a grout outlet gap to stabilize grouting.
Benefits of technology
Effective control of grouting pressure, prevention of grout backflow, improvement of grouting quality, and assurance of grouting effect.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224451648U_ABST
Abstract
This utility model relates to the field of building construction technology, specifically disclosing a grouting device for precast piles, including a pile body and a pile tip plate installed at one end of the pile body. The pile tip plate is provided with a grout outlet steel pipe connected thereto, and the pile tip plate is also provided with a grout injector connected thereto. One end of the grout injector extends into the grout outlet steel pipe, and the other end of the grout injector is provided with a grouting pipe connected thereto. A pressure sensor is provided inside the grout injector, and a check valve is also provided at the end of the grout injector inside the grout outlet steel pipe. By using a pressure sensor on the grout injector to detect the grouting pressure, the grouting flow rate can be controlled to control the grouting pressure. Furthermore, the check valve at one end of the grout injector can effectively prevent grout backflow and improve the grouting quality.
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