The disclosure aims at providing a 3D pool system for enabling users to see 3D visual effects when is use and enhancing user experience. The 3D pool system may include a pool body and a viewing device. Pool body may include an inner pool surface provided with a pattern may include first regions and second regions. First regions and second regions respectively have first boundaries and second boundaries. First regions surrounded by first boundaries are filled with a first colour, and second regions surrounded by second boundaries are filled with a second colour. Viewing device is used for viewing pattern and refracting incident light from pattern, and re is a difference in depth of field between first regions 4a and second regions 4b of pattern, thereby creating a 3D effect. The disclosure realizes a three-dimensional effect of pattern on inner pool surface at low costs.

The present invention relates to a pneumatic structure (10) comprising an inextensible body (12) defining at least a network of internal cavities (14), each cavity having a closed contour in at least one section of the cavity

Each cavity being suitable for being pressurized so as to change the inextensible body from a rest configuration to at least one pressurized configuration,

Inextensible body having, in each pressurized configuration, a macroscopic metric different from its macroscopic metric in the rest configuration,

Each cavity being formed of at least two substantially rectilinear channels, each channel being fluidly connected to at least one of the other channels, the two said channels forming a heading change angle,

Each cavity comprising at least one non-zero heading change angle, in particular at least three non-zero heading change angles.

The present invention provides an inflatable swimming pool convenient for drainage, which comprises an air chamber layer and a bottom pad. The air chamber layer defines an approximate rectangle with two long sides of the rectangular air chamber layer recessed inwards. The bottom of the air chamber layer is closed at a bottom plane by the bottom pad to form a pool structure, and after water is filled between the air chamber layer and the bottom pad, the two long sides of the air chamber layer can expand outwards to form a straight rectangular pool. An accommodating chamber is further arranged in the air chamber layer. The air pump is communicated with an inner cavity of the air chamber layer through an inflation communication pipe. The inflatable swimming pool of the present invention is more convenient to use, has better drainage efficiency and can be inflated automatically.

An inflatable device which can fit with a portable SPA pool and has the advantages of low costs, a light weight and convenience for carrying and storage, and can serve as a step for a user to conveniently enter and exit the inflatable pool, a desk on the side of the SPA pool for placing personal articles and a stool for a user to rest near the portable SPA pool. An inflatable device for a portable SPA pool, comprising: a top sheet and a bottom sheet spaced apart from each other in a vertical direction; side walls extending between said top sheet and said bottom sheet, upper edges of said side walls being connected to outer edges of said top sheet, respectively, and lower edges of said side walls being connected to outer edges of said bottom sheet, respectively so as to form an inflatable air chamber; and at least one group of tensioning structures, said tensioning structure being disposed in said air chamber and connected to said top sheet, said bottom sheet and said side walls respectively so as to limit the outward bulging of said top sheet, said bottom sheet and said side walls when said air chamber is inflated.

A pool apparatus for users to do activities in the pool apparatus. The pool apparatus includes a pool main body, one or more than one reaction deices and a control circuit. The control circuit is connected to the reaction device and controls the reaction device according to a setting to increase additional functions of the pool apparatus. When the control circuit is connected to an external device via at least one wireless network, a user may use the external device to adjust the setting. The external device does not need to be paired with the control circuit in advance. Instead, the external device interacts with the control circuit via a protocol to access and adjust the setting.

An inflatable pool and a method for manufacturing the same are provided. An inner wall of the inflatable pool is provided with at least two inner wall joints each extending along a direction perpendicular to a pool base. After the inflatable pool is inflated, a corner is formed on the inner wall at a position of each of the inner wall joints; an outer wall is provided with at least one outer wall joint extending along the direction perpendicular to the pool base. According to the inflatable pool of the present application, the at least two inner wall joints and the at least one outer wall joint are provided on the inner wall and the outer wall respectively, which is easy for forming the corner on the inner wall after inflation, to form the polygon-shaped inflated pool, thus air leakage hardly occurs.

Disclosed herein is a fluid container comprising: a base, having a bottom portion and a side portion, the bottom portion and the side portion being one unitary sheet, and a side wall joined to the base at the side portion and defining an interior volume of the fluid container, the side wall comprising: a first plastic material, an inner wall, an outer wall, at least one inflatable air chamber defined by a volume between the inner wall and the outer wall and substantially continuous throughout the side wall, and at least one air valve disposed on the outer wall and in fluid communication with the at least one inflatable air chamber. Also disclosed herein are methods of making and using the same.

A water circulation system for a pool comprises a water outlet assembly mounted to an inner wall of a pool, and in fluid communication with an external pump through a water outlet pipe. The water circulation system also includes an air inlet assembly mounted to the pool a preset distance from the water outlet assembly, and an air outlet assembly attached to the water outlet assembly and in fluid communication with the water outlet assembly. An air inlet passage connects the air inlet assembly to the air outlet assembly, so external air can enter the air inlet assembly and be introduced to the water outlet assembly through the air outlet assembly. Air is introduced to the water outlet by the air outlet when the water outlet assembly is blocked, reducing negative pressure at the water outlet and reducing risk that a portion of a user's body is drawn against or into the water outlet.

Disclosed is a collapsible container, such as an above-ground pool, having side walls with some level of transparency. The container may include a base, a side wall joined to the base, and at least one transparent portion of the side wall. The transparent portion may comprise a clear material strong enough to support the pool structure without the need for a reinforcing material. Such a design may be stronger, more durable, and allow for clearer viewing than conventional above-ground pools employing conventional portholes. Such a design may allow for larger portions of transparent material than traditional pools. For example, in some embodiments, half of the side wall could comprise a transparent portion. In some embodiments, the entire side wall could comprise a transparent portion. Additionally, the pool may have improved portability and storability characteristics that are superior to those of conventional pools.

An improved drain for an above-ground pool is disclosed. A variety of above-ground pool types are considered. Above-ground pools must be drained after use before being stored in a lengthy and time-consuming process. The improved drain can advantageously remain open during the draining process allowing for improved drainage. The drain can comprise a plug member and a locking member. The plug member can be configured to attach to the locking member when open. This and other embodiments are disclosed herein.