| 摘要 |
A braking and driving mechanism includes a guide plate, a driving rod, a magazine, and a pressing rod. The guide plate includes a longitudinal nail groove extending along a direction same to a nail driving direction of the nail gun. The longitudinal nail groove is communicated with a nail driving groove. The driving rod is slidably assembled on an end side of the guide plate along the nail driving direction. A stopping portion is formed on an end side of the driving rod. The magazine is transversely disposed on an end wall of the guide plate. An inner portion of the magazine defines a longitudinal guide groove for supplying nails. The longitudinal guide groove receives a plurality of nails therein and is communicated with the longitudinal nail groove. More than one nail pushing pieces capable of providing an elastic force are arranged in the longitudinal guide groove. The nail pushing pieces are configured for pushing the nails to pass through the longitudinal nail groove and enter into the nail driving groove one by one for shooting. The pressing rod consists of a bar shaped arm with its two opposite ends extending to respectively form a tongue portion and a pushing portion. A pivot portion is formed between the tongue portion and the pushing portion. The pressing rod is pivotably disposed in the magazine via the pivot portion. An elastic member for driving the arm to transversely press a main body of each of the nails is disposed on the pushing portion. If the number of remaining nails in the magazine is equal to a default number the elastic member drives the tongue portion to move to a position where the tongue portion can block the stopping portion such that the movement of the driving rod is braked.
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