Abstract: The present disclosure discloses a foam spraying can with excellent pressure resistance, including a spray head, a liquid tank lid, a liquid tank, wherein the spray head is inserted in the liquid tank lid, the liquid tank lid is engaged on a liquid injection port of the liquid tank, a polygon hole is provided in the interior of the spray head, a metal tube is provided in the spray head, a polygon positioning element is provided on the metal tube, the metal tube is inserted in the polygon hole, the polygon positioning element is engaged in the polygon hole, the spray head sprays foam through a nozzle, and the metal tube connects the spray head and the nozzle.

Abstract: The present disclosure discloses a leak-proof foam spraying can, characterized in that it includes a liquid tank, a liquid tank lid and a duckbill valve, wherein the top of the liquid tank is provided with a liquid injection port, the liquid tank lid is engaged on the liquid injection port, the liquid tank lid is provided with a mounting hole which penetrates through the liquid tank lid along the vertical direction from the top to the bottom, and the duckbill valve is mounted in the mounting hole and the opening of the duckbill valve faces downward. The present disclosure has the following advantageous effects: by mounting a duckbill valve in the liquid tank lid, the duckbill valve can be opened when the spraying can is in use and suck air to equalize the pressure, or it can be closed when the spraying can is inverted to avoid leaking cleaning agent or disinfectant.

Abstract: An adapter for connecting a water pipe and a high-pressure spray gun includes a connection assembly, a clamping assembly, and a covering member. The connection assembly includes a connector body defined by a side wall and extending between a proximal end and a distal end, and a chute that extends along the connection body between the proximal and distal ends. The water pipe is coupled along the proximal end and the spray gun is coupled along the distal end. The chute includes grooves, and tapered regions seamlessly extending below from the grooves. The clamping assembly is operatively coupled to the connector body. The covering member sleeves over the connection assembly to movably engage with the clamping assembly, and is pressed and released to realise the buckle to move down from the grooves towards the tapered regions and back from grooves to the tapered regions, to clamp the water pipe.

Abstract: An adapter for connecting a water pipe and a high-pressure spray gun includes a connection assembly, a clamping assembly, and a covering member. The connection assembly includes a connector body defined by a side wall and extending between a proximal end and a distal end, and a chute that extends along the connection body between the proximal and distal ends. The water pipe is coupled along the proximal end and the spray gun is coupled along the distal end. The chute includes grooves, and tapered regions seamlessly extending below from the grooves. The clamping assembly is operatively coupled to the connector body. The covering member sleeves over the connection assembly to movably engage with the clamping assembly, and is pressed and released to realise the buckle to move down from the grooves towards the tapered regions and back from grooves to the tapered regions, to clamp the water pipe.