PRESSURE MECHANISM FOR SPRAY CANNISTER

The invention discloses a fluid dispensing mechanism for a fluid dispensing device comprising an elastic sleeve surrounding a bag for filling with fluid for dispensing, the bag has a circumference andbeing folded at a plurality of folding locations around said circumference, thereby to unfold evenly under said sleeve during a filling process of pressurized filling of said bag with fluid, the mechanism further comprises an anchoring column. The bag is folded around the anchoring column. 本发明公开种用于流体配送装置的流体配送机构，包括弹性的套管，所述弹性的套管环绕袋体，所述袋体用于填充流体以供配送，所述袋体具有周长并且在环绕所述周长的多个折叠位置处被折叠，从而在以流体加压填充所述袋体的填充过程期间于所述套管下方均匀地展开，所述机构还包括锚定的柱体。所述袋体环绕所述锚定的柱体而被折叠。