The main types of grouting sleeve holders include built-in grouting sleeve holders. This type of holder belongs to the field of precast concrete component production process technology, and mainly includes a fixed shaft and a holder body. The holder body is divided into an upper part and a lower part. The lower end of the upper part is provided with a first center hole, and the lower part is provided with a second center hole that penetrates through. The top end of the fixed shaft is embedded in the top of the first center hole, and is sleeved on the fixed shaft through the second center hole. A steel bar positioning concave hole is also provided in the middle of the top of the body, which is used to fix the position of the full grouting sleeve, ensure the seamless connection between the bottom end of the sleeve and the side form, and prevent the sleeve from shifting, loosening, and grouting during vibration.
In addition, the design of the grouting sleeve holder is also intended to fix the depth of steel bar insertion and accurately fix the steel bar in the center position to prevent the steel bar position from shifting sideways during grouting, thereby effectively ensuring the grouting quality and improving construction efficiency.

