Abstract: Disclosure is a loudspeaker frame, comprising a frame body, and a fastener for mounting the frame body in an application scenario. The fastener comprises a connecting column having a proximal end being directly or indirectly connected to the frame body and a distal end; and fins arranged in pairs and respectively located on two sides of the connecting column, wherein each of the fins has a proximal end and a distal end. The distal end of each of the fins is connected to the distal end of the connecting column, a gap is formed between the proximal end of each of the fins and the connecting column, and each of the fins has elasticity so as to allow the fin to draw close to the connecting column after being pressed.

Abstract: Disclosed in the present application is a valve, comprising a housing, a first valve body, a second valve body and a control assembly. The housing defines a housing channel. The first valve body is arranged in the housing channel in a rotatable manner, defines a valve body channel, and can connect or disconnect the housing channel. The second valve body is arranged in the valve body channel in a rotatable manner, so as to connect or disconnect the valve body channel. The control assembly is configured to control the rotation of the first valve body and the second valve body. The valve of the present application is controlled to rotate by means of the control assembly. More specifically, an external control device (for example, an electric motor) controls the opening and closing of the valve simply by means of controlling a shaft rod, thereby simplifying the control logic of the valve.

Abstract: Disclosure is a loudspeaker frame, comprising a frame body, and a fastener for mounting the frame body in an application scenario. The fastener comprises a connecting column having a proximal end being directly or indirectly connected to the frame body and a distal end; and fins arranged in pairs and respectively located on two sides of the connecting column, wherein each of the fins has a proximal end and a distal end. The distal end of each of the fins is connected to the distal end of the connecting column, a gap is formed between the proximal end of each of the fins and the connecting column, and each of the fins has elasticity so as to allow the fin to draw close to the connecting column after being pressed.