What are the aspects of the leak-proof design of plastic sports water bottles- Yuyao Sanfeng Plastic Mold Co., Ltd.

Leak-proof design is a crucial part of the manufacturing of plastic sports water bottles. It is designed to ensure that no water leaks occur during exercise or storage and to maintain the sealing of the water bottle.

Sealing cover design:

O-ring seal: An O-ring seal is usually used at the interface between the bottle mouth and the bottle cap. This design can provide a reliable sealing effect. O-rings are usually made of elastic materials (such as silicone or rubber) to ensure an effective seal when the lid is tightened.

Multi-layer sealing structure: Some high-end water bottles adopt a multi-layer sealing structure, which improves sealing performance by superimposing multiple sealing layers. This design can effectively prevent moisture from leaking from the bottle mouth or lid.

Thread design and rotation locking mechanism:

Threaded bottle mouth design: The threaded bottle mouth design can provide a stronger lid fixation, ensuring that the lid fits tightly on the bottle mouth. This design can effectively prevent the cover from loosening due to vibration during movement.

Rotation locking mechanism: Some advanced sports water bottles are designed with a rotation locking mechanism, which allows the lid to rotate at a certain angle and lock on the bottle mouth when closed, ensuring that the lid will not loosen easily.

Vent design:

Anti-vacuum design: Some water bottles have ventilation holes on the lid to prevent a vacuum from forming inside the bottle. This can reduce the pressure difference between the inside and outside, prevent the bottle from deforming and being difficult to open due to the vacuum effect after drinking, and prevent liquid from overflowing.

Air-tight design: By precisely controlling the size and position of the vent, an air-tight design can be achieved, which ensures that the water bottle does not leak during normal use, while the vent can be easily opened when drinking water is needed.

Leak-proof structural design:

Bottleneck design: By carefully designing the shape and structure of the bottleneck, better leakage prevention can be achieved. Some water bottles have ridges or channels in the neck, making it more difficult for liquid to flow around the outside of the neck.

Inclined mouth design: Some sports water bottles are designed with an inclined bottle mouth, which makes it easier for the liquid to flow into the bottle and not to the outside, reducing the spillage of liquid caused by external forces.

Anti-extrusion design:

Elastic material application: Elastic materials, such as rubber or silicone, are used in some leak-proof designs to provide additional sealing force and prevent liquid leakage when the water bottle is squeezed or deformed.

Bottle structure optimization: By optimizing the structure of the bottle, it has better anti-extrusion performance, which can maintain the shape of the bottle under the action of external forces and reduce the possibility of liquid leakage.

Temperature adaptability considerations:

Factors affecting temperature: Changes in temperature may cause the plastic to expand or contract, thereby affecting the sealing performance of the water bottle. Therefore, some advanced water bottles are designed with temperature changes in mind to ensure that they can still maintain leak-proof effect in different environments.