Gas is locating part, gas dam device and vehicle for dam

The utility model relates to a gas is the locating part for the dam, gas dam device and vehicle, gas for the dam locating part include spacing support, be provided with the main tributary brace on the spacing support, the main tributary brace has including can make progress elastic deformation's deformation end of foreign side, the deformation of main tributary brace serve be provided with the notch towards the right side be used for be in the draw -in groove of joining in marriage when expanding the position with gas dam card on the gas dam, the draw -in groove has and by gas dam crest is pushed away and make draw -in groove covariant shape end towards the front side cell wall and the rear side cell wall that move to left move by preceding to the back swing or by late arrival forward swing measured time on the gas dam. The utility model provides a can improve the gas dam at for dam locating part and use the gas dam device and the vehicle of this gas locating part for the dam of the gas that expandes position stability.