Abstract: The present disclosure relates to air assemblies having an inflation, a deflation, and a closed state for use with inflatable products, such as air mattresses. Specifically, the present disclosure relates to air assemblies where the configuration of the air assembly can be changed manually by a user by operating a directional control valve to inflate, deflate, or close the inflatable product. The directional control valve may also activate a pump in the inflation and deflation states and deactivate the pump in the closed state.

Abstract: The present disclosure provides an internal pressure adjustment structure for a multi-chamber inflatable product, which can simplify the user's air pressure adjustment operation and improve the user's experience. The internal pressure adjustment structure may include at least one regulating valve positioned between at least two air chambers of an inflatable product and an inflation and deflation assembly fluidly coupled to at least one of the at least two air chambers.

Abstract: An air leakage prevention adjusting structure of a mechanical pump is provided. The adjusting structure may be applied to a multi-channel pump. The multi-channel pump may comprise a body, an air pump assembly and a channel switching structure which are arranged in the body, and a panel matched on the body. The adjusting structure may be matched on the panel and may comprise a channel selection knob, a turntable and a power switch. The channel selection knob may be rotatably arranged on the panel. The turntable may be arranged in the body. The upper end of the turntable may be connected with the channel selection knob, and the lower end of the turntable may be matched with the channel switching assembly. A convex edge and a notch may be arranged on the turntable. A button for controlling the on-off of a power supply is arranged on the power switch, and is selectively matched with the convex edge and the notch of the turntable.

Abstract: A filter medium contamination detection structure may comprise a filter element and a prompt assembly. The prompt assembly may comprise a first pressure sensor, which may comprise a signal output end, and a second pressure sensor, which may comprise a signal output end. The first pressure sensor may be connected to a water inlet of the filter element, and the second pressure sensor may be connected to a water outlet of the filter element or outside air. The signal output ends of the first pressure sensor and the second pressure sensor may be connected to a signal input end of a controller. When the filter element is dirty, a pressure at the water inlet end may increase or a pressure at the water outlet end may decrease, and the difference between the first sensor and the second pressure sensor may increase.

Abstract: The present disclosure relates to air assemblies having an inflation, a deflation, and a closed state for use with inflatable products, such as air mattresses. Specifically, the present disclosure relates to air assemblies where the configuration of the air assembly can be changed manually by a user by operating a directional control valve to inflate, deflate, or close the inflatable product. The directional control valve may also activate a pump in the inflation and deflation states and deactivate the pump in the closed state.

Abstract: The present application proposes a method and a system for constructing a data command frame for remote reservation control, by setting a first byte representing a reserved working time start point, a second byte representing one-time working duration, a third byte representing the reservation status of a whole working cycle, the whole working cycle is divided into several time units, the third byte includes several bits corresponding to several time units, and assigns the value of each bit to determine whether the time units corresponding to each bit is reserved as working time; then combining the first byte, the second byte and the third byte to construct data command frame, and sending the command frames to device to realize remote control. This method enables remote reservation setting on the management of places like spa pools, which is safer and more convenient for spa management staff, and can greatly improve working efficiency and reduce the probability of error.

Abstract: A contamination prompt structure for a filter medium may comprise a filter element and a prompt assembly. The prompt assembly may have a movable part. One end of the movable part may be in communication with one of a water inlet of the filter element, or a water outlet of the filter element, and the other end of the movable part may be in communication with the other one of the water inlet of the filter element, the water outlet of the filter element, or outside air. When the filter element is in a contaminated state, a rise of pressure at the water inlet or a drop of pressure at the water outlet may drive the movable part to move to send a prompt for a user to replace the filter element.

Abstract: An air connection pipeline device of a massage pool may comprise a pipeline. The pipeline may be formed with a first air connection passage and a second air connection passage. The first air connection passage may have a first air inlet and a first air outlet. The first air connection passage may include a check valve located between the first air inlet and the first air outlet. The check valve may be driven to open when the air flow moves from the first air inlet to the first air outlet and close when reversely. The second air connection passage may be provided with a switch valve. The switch valve may comprise a second valve core and a second elastic body. The second valve core may slide between a closed position to close the second air connection passage and an open position to open the second air connection passage. The second elastic body may press against the second valve core. An initial state of the second valve core may be the closed position.

Abstract: An above ground frame pool (10) includes a frame assembly (20) and a liner (40) supported by the frame assembly (20). The frame assembly (20) includes a plurality of horizontal pipes (22), a plurality of vertical pipes (24), and a plurality of T-shaped joints (30). The joints (30) may lack mechanical fasteners with adjacent pipes or corresponding apertures. The joints (30) may be one-piece or multi-piece structures. Such joints (30) maybe water-resistant and convenient to manufacture, assemble, disassemble, and store.

Abstract: An airway structure of a massage pool may include a control valve. The airway structure may comprise an air connection passage with an air connection port and a control plate rotatable relative to the air connection port. A control valve may be installed at the air connection port. The control valve may have a valve core portion that can slide between an open position and a closed position relative to the air connection port. The control plate may be provided with a ventilation port, an open area and a closed area. A position of the open area and the closed area may be controlled by the rotation of the control plate to match the valve core portion.

Abstract: An airway device of a massage pool may comprise an air pump and an airway unit. The airway unit may comprise an operating member; a pipeline, and a control mechanism, The pipeline may be formed with an air connection portion. The air connection portion may have a first air connection passage and a second air connection passage. The air pump may be attached to the pipeline. The control mechanism may be coupled on the pipeline. The operating member may be connected to the control mechanism in a driving manner. The operating member and the control mechanism may cooperate to control the airway unit to change to a first intake state in which the first air connection passage is inflated by the air pump, an exhaust state in which the second air connection passage is exhausted by the air pump, and a second intake state in which the second air connection passage is inflated by the air pump.

Abstract: An airway structure of a massage pool may have a compensation function. The airway structure may comprise a pipeline, a control valve group, an air connection sleeve, a first elastic body, and a second elastic body. The pipeline may comprise a fixed air connection portion and a sealing plate. The control valve group may comprise a control plate. The control plate may be located under the sealing plate. The first elastic body may be attached between the pipeline and the control valve group and abut against the control valve group to make the control plate abut under the sealing plate. The fixed air connection portion may be provided with an air connection port. The air connection sleeve may translatable relative to the air connection port. The second elastic body may be mounted between the air connection portion and the air connection sleeve and abuts against the air connection sleeve to make the air connection sleeve abut under the control plate.

Abstract: An automated system and method are disclosed for producing an inflatable product having a first sheet, a second sheet, and a plurality of tensioning structures between the first and second sheets. The system includes an upstream tensioning structure production subsystem that produces the tensioning structures and a downstream preassembly production subsystem that couples the tensioning structures to the first and second sheets. The subsystems may operate simultaneously to produce the inflatable product in an automated, efficient, and repeatable manner.

Abstract: An above ground frame pool is disclosed including a frame assembly and a liner supported by the frame assembly. The frame assembly includes a plurality of horizontal pipes, a plurality of vertical pipes, and a plurality of T-shaped joints. The joints may lack mechanical fasteners with adjacent pipes or corresponding apertures. The joints may be one-piece or multi-piece structures. Such joints may be water-resistant and convenient to manufacture, assemble, disassemble, and store.

Abstract: An airway structure of a massage pool may have a compensation function. The airway structure may comprise a pipeline, a control valve group, an air connection sleeve, a first elastic body, and a second elastic body. The pipeline may comprise a fixed air connection portion and a sealing plate. The control valve group may comprise a control plate. The control plate may be located under the sealing plate. The first elastic body may be attached between the pipeline and the control valve group and abut against the control valve group to make the control plate abut under the sealing plate. The fixed air connection portion may be provided with an air connection port. The air connection sleeve may translatable relative to the air connection port. The second elastic body may be mounted between the air connection portion and the air connection sleeve and abuts against the air connection sleeve to make the air connection sleeve abut under the control plate.

Abstract: An air connection pipeline device of a massage pool may comprise a pipeline. The pipeline may be formed with a first air connection passage and a second air connection passage. The first air connection passage may have a first air inlet and a first air outlet. The first air connection passage may include a check valve located between the first air inlet and the first air outlet. The check valve may be driven to open when the air flow moves from the first air inlet to the first air outlet and close when reversely. The second air connection passage may be provided with a switch valve. The switch valve may comprise a second valve core and a second elastic body. The second valve core may slide between a closed position to close the second air connection passage and an open position to open the second air connection passage. The second elastic body may press against the second valve core. An initial state of the second valve core may be the closed position.

Abstract: An airway structure of a massage pool may include a control valve. The airway structure may comprise an air connection passage with an air connection port and a control plate rotatable relative to the air connection port. A control valve may be installed at the air connection port. The control valve may have a valve core portion that can slide between an open position and a closed position relative to the air connection port. The control plate may be provided with a ventilation port, an open area and a closed area. A position of the open area and the closed area may be controlled by the rotation of the control plate to match the valve core portion.

Abstract: An airway device of a massage pool may comprise an air pump and an airway unit. The airway unit may comprise an operating member; a pipeline, and a control mechanism, The pipeline may be formed with an air connection portion. The air connection portion may have a first air connection passage and a second air connection passage. The air pump may be attached to the pipeline. The control mechanism may be coupled on the pipeline. The operating member may be connected to the control mechanism in a driving manner. The operating member and the control mechanism may cooperate to control the airway unit to change to a first intake state in which the first air connection passage is inflated by the air pump, an exhaust state in which the second air connection passage is exhausted by the air pump, and a second intake state in which the second air connection passage is inflated by the air pump.

Abstract: A frame pool is disclosed including a frame assembly and a pool liner, the frame assembly including horizontal frame members and a vertical frame member coupled together via a T-shaped joint. The T-shaped joint may be constructed of plastic to facilitate attachment and detachment to the adjacent frame members and to resist galling and corrosion. The T-shaped joint may also be relatively small to improve the appearance and water containment of the frame pool.