Abstract: A doorbell device including upper case, elastic component, and button module is provided. The upper case has an outer surface, first annular-holding surface disposed opposite to the outer surface, first opening and annular trench. The first annular-holding surface surrounds the first opening. The annular trench surrounds the first annular-holding surface. The elastic component has first fastening protrusion and flexible-carrier layer surrounded and connected by the first fastening protrusion. The button module has a second annular-holding surface, first bottom surface, and pressing surface disposed opposite to the first bottom surface. The first fastening protrusion is interference fit with the annular trench. The button module is disposed on the flexible-carrier layer. At least a part of the first bottom surface is facing the flexible-carrier layer.

Abstract: A doorbell device including upper case, elastic component, and button module is provided. The upper case has an outer surface, first annular-holding surface disposed opposite to the outer surface, first opening and annular trench. The first annular-holding surface surrounds the first opening. The annular trench surrounds the first annular-holding surface. The elastic component has first fastening protrusion and flexible-carrier layer surrounded and connected by the first fastening protrusion. The button module has a second annular-holding surface, first bottom surface, and pressing surface disposed opposite to the first bottom surface. The first fastening protrusion is interference fit with the annular trench. The button module is disposed on the flexible-carrier layer. At least a part of the first bottom surface is facing the flexible-carrier layer.

Abstract: The present invention relates to a nail gun with an improved attachable and detachable magazine assembly, comprising: a nail gun, a magazine assembly and an attach and detach mechanism. A handle portion of the nail gun has a joining pillar capable of joining with the attach and detach mechanism for attaching the magazine assembly with the nail gun, wherein the attach and detach mechanism further comprises: a fixing frame, a swinging fastening bar, a fastening member, and an elastic element. When it is desired to attach the joining pillar with the magazine assembly, the swinging fastening bar must be swung out firstly, so as to insert the joining pillar into the fixing frame, and continuously, to swing the swinging fastening bar close to the fixing frame, furthermore, then the fastening notch is able to grip and fix the joining pillar inside the fixing frame, finally, the joining pillar is completely attached with the magazine assembly.

Abstract: A bushing for conducting air in a nail gun is arranged between an air chamber and a cylinder received in a housing of the nail gun. The bushing is adjacent to a bottom of a main valve for driving hitting motion of the nail gun. A number of main valve holes that are adjacent to the main valve are formed in a sidewall of the cylinder. At least one air inlet is formed in a bottom of a sidewall of the cylinder. An air flow passage is defined in the housing and is in communication with the main valve and the air hole. A valve plug which is configured for opening or closing the air flow passage is received in the air flow passage. The valve plug divides the air flow passage into an upper portion and a lower portion. The lower portion is formed in the housing. An annular end surface is formed on a top of the bushing. The annular end surface defines a main air inlet for the main valve. An end portion extends from the bushing and having the upper portion of the air flow passage formed therein.

Abstract: A bushing for conducting air in a nail gun is arranged between an air chamber and a cylinder received in a housing of the nail gun. The bushing is adjacent to a bottom of a main valve for driving hitting motion of the nail gun. A number of main valve holes that are adjacent to the main valve are formed in a sidewall of the cylinder. At least one air inlet is formed in a bottom of a sidewall of the cylinder. An air flow passage is defined in the housing and is in communication with the main valve and the air hole. A valve plug which is configured for opening or closing the air flow passage is received in the air flow passage. The valve plug divides the air flow passage into an upper portion and a lower portion. The lower portion is formed in the housing. An annular end surface is formed on a top of the bushing. The annular end surface defines a main air inlet for the main valve. An end portion extends from the bushing and having the upper portion of the air flow passage formed therein.