An auto-lock sealing valve structure of the rubber jointing ring having an auto-lock valve comprising a lid, a rubber jointing ring, and a container, wherein:
- the lid having an outside rim as a handle;
- the lid body in the circular cylinder shape extending downwardly, two side surfaces of the lid body having two vapor escaping grooves provided symmetrically through the cylinder’s center of the lid;
- the sole part having a raised edge in the torus shape, having an outer diameter which is longer than the outer diameter of the lid body to help keeping tightly a raised edge of the rubber jointing ring to the lid body and does not come out off during opening, closing the bottle lid;
- the rubber jointing ring having the body part which is a hollow cylinder in the inside and its outside has four sealing layers packing on each other in a specific interval;
- the jointing ring layer on top having the same hopper shape with an upwardly expanding part, this layer is immediately on the down side of the lid in order to insert into the gap between the lid and the opening of the a water bottle to increase their tightness and seal;
- the jointing ring layers and having the same structures and functions, with a flat upper surface and a upwardly cauldron-shaped bottom surface;
- on the body part of the jointing ring layers and there are small gaps provided regularly spaced and central symmetric;
- the gaps above help the air inside the bottle escape entirely upon assembling, thus do not cause the vapor covering phenomenon when closing the lid, the gaps on the jointing ring layers and provided alternatively;
- the layer is in a circular cylinder shape with the flat upper and bottom surfaces, this layer lets only the inside air pass through and prevents the liquid from overrunning to the outside;
- the layer and the layer are thicker and stiffer than the layer in order to keep lid more firmly to the water bottle of the container;
- the raised edge of the jointing ring having the flat top and bottom surfaces, the body part in the middle is rounded and its diameter is longer than the outer diameter of the raised edge of the lid so that the raised edge entirely enclosures the raised edge;
- the container in the type of a bottle has the top part in the type of a hopper with an opening part and the bottleneck in the type of a cylinder and is successively bigger down to the bottle body;
- the inside of the bottle opening and the concave edges protruded toward the inside - in a shape and dimensions (D3, L3, D4, L4) provided adaptable to dimensions (d3, 13, d4, 14) on the rubber jointing ring therefore the bottom part and layers of the rubber jointing ring fit entirely inside the bottle opening and the concave edge.