Abstract: A temperature-sensitive automatic rapid gas generation fire extinguishing device is provided, including a box body; a plurality of heat absorption fire extinguishing units are placed on an inner side wall of the box body, and a first trigger unit is arranged between one of the heat absorption fire extinguishing units close to the first baffle and the inner side wall of the box body; the one of the heat absorption fire extinguishing units triggers the first baffle to move down through the first trigger unit, and a relatively closed space is formed in the box body; a plurality of gas generation fire extinguishing units are placed on an inner side wall of the box body, and a second trigger unit is arranged between one of the gas generation fire extinguishing units close to the second baffle and the inner side wall of the box body.

Abstract: The invention discloses a pool body, including: a pool inner wall including a side wall and a bottom wall which are connected, the side wall and the bottom wall of the pool inner wall forming a water holding cavity for storing a fluid; an additional chamber arranged on the pool inner wall; and an additional pipeline built into the additional chamber. The invention can save the space in the pool.

Abstract: The invention discloses a water filtration system, including: a circulation pump including a water inlet and a water outlet, the circulation pump being a low voltage direct current water pump; and a water passing pipeline connected at one end to the water inlet of the circulation pump and at the other end to a secondary water suction port, the secondary water suction port being used for sucking fluid stored in a water holding cavity. The water filtration system of the present invention has higher efficiency, higher pressure and a smaller volume than the traditional alternating current pump. The present application also provides a pool body.

Abstract: An underwater thruster with improved guide stability and increased kinetic energy utilization rate comprises a power part and a propeller, wherein the power part is provided upstream of the propeller for driving the propeller to rotate. The underwater thruster further comprises a diversion part which is provided between the water inlet part and the water outlet part and is connected with the water inlet part and the water outlet part respectively in a plug-in manner, to uniformly disperse water entering the water inlet part to blades of the propeller.

Abstract: Provided herein is a heater and a heating pool. The heater comprises a heating core that includes a first surface and a second surface arranged on the opposite side of the heating core. A first insulating housing is placed on the first surface and forms a first heat insulating chamber together with the first surface. The second insulating housing is placed on the second surface and forms a second heat insulating chamber together with the second surface, wherein the first heat insulating chamber and the second heat insulating chamber communicate with each other. The heater of the utility model has good insulation performance and can prevent the occurrence of electrical leakage, so that the safety performance of the heater is improved.

Abstract: A paddle board, comprising a paddle board body (10) comprising an upper surface (11) and a lower surface (11a), wherein the lower surface of the paddle board body is a surface which comes into contact with the water, the upper surface of the paddle board body comprises a first region (11) and a second region (12). In the direction from the upper surface to the lower surface, the second region is lower than the first region, wherein the first region can be for the user to stand and the second region can be for user to sit. By means of the paddle board, the user can paddle when standing on the paddle board, and can also paddle when sitting on the paddle board, such that the user experience is good.

Abstract: Disclosed is an ultraviolet light disinfection apparatus mounted on a water pipe that is connected to a massage pool. The ultraviolet light disinfection apparatus comprises: a housing mounted on the water pipe and in closed connection with the water pipe; a PCB disposed inside the housing and provided with a UVC-LED light source and a wire, the wire protruding from the housing to connect to the power source; an ultraviolet light-transmitting body disposed on the housing, such that ultraviolet light at UVC wavelength range produced by the UVC-LED light source can enter into water body inside the water pipe through the ultraviolet-transmitting body. The present invention can disinfect the water body inside the water pipe. Also provided are a control box and a massage pool.

Abstract: Disclosed in the present invention is a water circulation pipeline, comprising: an interface pipeline, the interface pipeline comprising a first pipeline and a second pipeline, one of the first pipeline and the second pipeline being provided with water inlets, and the other being provided with a water outlet, the water inlets and the water outlet being used for being connected to a water pool body, the second pipeline being nested in the first pipeline; and a pipeline body having a third pipeline, a first port of the third pipeline being in communication with the first pipeline, and a second port of the third pipeline being in communication with the second pipeline. The present invention can reduce the volumes of the water circulation pipeline and a control box. Also disclosed in the present invention are a control box and a massage water pool.

Abstract: This present invention relates to an electric fin and a water sports instrument, wherein the electric fin comprises a housing extending along a first direction and having a water inlet cavity; and a propeller and a guide member sequentially arranged in the first direction, wherein the propeller is located in the water inlet cavity, at least part of the guide member is located in the water inlet cavity, the water flow in the water inlet cavity flows out of the guide member; the propeller is provided with a propeller shaft and a plurality of blades, the propeller shaft extends in the first direction, and the plurality of blades are arranged on the propeller shaft in the circumferential direction; the guide member is provided with a guide shaft and a plurality of flow deflectors, the guide shaft extends in the first direction and the plurality of flow deflectors are arranged on the guide shaft in the circumferential direction; the outer contour enclosed by the propeller shaft and the guide shaft shows a projecti

Abstract: A valve assembly includes: a valve body, having an inner cavity; a first pipeline arranged on the valve body, having one end that communicates with the inner cavity and another end that is configured to be connected to an air pump; a second pipeline arranged on the valve body, having one end that communicates with the inner cavity and another end that is configured to be connected to a bubble spraying interface of a pool; and a third pipeline arranged on the valve body, having one end that communicates with the inner cavity and another end that is configured to be connected to an inflating interface of the pool. When the air pump is in an activated state, the second pipeline is in a communicating state and supplies air to the spray bubble interface, and the third pipeline is in a communicating state and supplies air to the inflating interface.

Abstract: Disclosed is a control box. The control box is internally provided with a first chamber, and the first chamber is used for accommodating a control component. The control box is also internally provided with an air supply system for supplying air to a water pool body. The air supply system comprises an air suction part having a housing, the housing is provided with an air inlet and an air outlet, and the air inlet is communicated with the first chamber; the air suction part further comprises an air pump provided in the housing, and when the air pump is started, air in the first chamber can be suctioned into the housing by means of the air inlet.

Abstract: The present disclosure relates to an underwater thruster, comprising a power part and a propeller, wherein the power part is provided at the upstream of the propeller for driving the propeller to rotate. The underwater thruster further comprises: a water inlet part, which the power part is provided at the upstream or internally of the water inlet part, the water inlet part being provided with a water inlet, one end and the other end of the water inlet part being columnar, and the diameter of radial cross-sections of the water inlet part gradually increasing from one end to the other end of the water inlet part; and a water outlet part, which is provided at the downstream of the water inlet part, one end of the water outlet part being provided with a water outlet, wherein the water inlet part is adjacent to the propeller and provided at the upstream of the propeller, and the propeller is provided inside the water outlet part.

Abstract: The present disclosure relates to a one-way valve (1) and an air supply system for a massage pool comprising the one-way valve (1). The one-way valve (1) includes: a valve body (10), wherein the valve body (10) has an inner cavity (11), and a first pipeline (20), a second pipeline (30) and a third pipeline 40 are arranged on the valve body. One end of the first pipeline (20) communicates with the inner cavity (11) and the other end of the first pipeline (20) is configured to be connected to an air pump; one end of the second pipeline (30) communicates with the inner cavity (11) and the other end of the second pipeline (30) is configured to be connected to a bubble spraying interface of a pool; and one end of the third pipeline (40) communicates with the inner cavity (11) and the other end of the third pipeline is configured to be connected to an inflating interface of the pool.

Abstract: An array coil to achieve more uniform RF excitation for high field magnetic resonance imaging. In the preferred embodiment, the array coil has a plurality of transmit-composite elements distributed around the object to be imaged. A composite element comprises up to three current loops preferably orthogonal to each another. The array coil has the capability to shape the distribution of all three orthogonal components (x, y, and z) of the RF B1 field.