A kind of pencil sharpener
Technical field
The present invention relates to a kind of pencil sharpener, especially can the pencil sharpener of automatically opening and closing.
Background technology
At present, known pencil sharpener can not automatically opening and closing, uses during pencil sharpener and needs manual opening cover to close lid.
Summary of the invention
Existing pencil sharpener can not automatically opening and closing, uses during pencil sharpener and needs manual opening cover to close lid, the invention provides a kind of automatic pencil sharpener being built-in with pressing plate.
The technical solution adopted for the present invention to solve the technical problems is: a kind of pencil sharpener, comprises main body 1, plate lid 2, turning cylinder 3, it is characterized in that main body 1 and plate lid 2 are rotationally connected by turning cylinder 3; Main body 1 is provided with pressing plate axis hole 11, press plate rotary axle 12, pressing plate 13, pressing plate driving shaft 14, movement slots 15, connecting plate 16, lower connecting hole 17, upper connecting hole 18, spring 19; Plate lid 2 is provided with plate lid driven shaft 21; Pressing plate 13 is connected by press plate rotary axle 12, pressing plate axis hole 11 and spring 19 with main body 1, and pressing plate 13 is connected by pressing plate driving shaft 14 and lower connecting hole 17 with connecting plate 16, and connecting plate 16 is connected by upper connecting hole 18 and plate lid driven shaft 21 with plate lid 2.
The invention has the beneficial effects as follows: make pencil sharpener can automatically opening and closing, use convenient.
Accompanying drawing explanation
Fig. 1 is a kind of pencil sharpener structural representation;
Fig. 2 is a kind of pencil sharpener partial structurtes schematic diagram;
Fig. 3 is that a kind of pencil sharpener uses schematic diagram.
In figure: main body 1, plate lid 2, turning cylinder 3, pressing plate axis hole 11, press plate rotary axle 12, pressing plate 13, pressing plate driving shaft 14, movement slots 15, connecting plate 16, lower connecting hole 17, upper connecting hole 18, spring 19, plate lid driven shaft 21.
Detailed description of the invention
For making the object of the invention, technical scheme clearly understands, below in conjunction with accompanying drawing specific embodiment, the invention will be further described.
See accompanying drawing 1-3, a kind of pencil sharpener, comprises main body 1, plate lid 2, turning cylinder 3, it is characterized in that main body 1 and plate lid 2 are rotationally connected by turning cylinder 3; Main body 1 is provided with pressing plate axis hole 11, press plate rotary axle 12, pressing plate 13, pressing plate driving shaft 14, movement slots 15, connecting plate 16, lower connecting hole 17, upper connecting hole 18, spring 19; Plate lid 2 is provided with plate lid driven shaft 21; Pressing plate 13 is connected by press plate rotary axle 12, pressing plate axis hole 11 and spring 19 with main body 1, and pressing plate 13 is connected by pressing plate driving shaft 14 and lower connecting hole 17 with connecting plate 16, and connecting plate 16 is connected by upper connecting hole 18 and plate lid driven shaft 21 with plate lid 2.
As Fig. 2-3, when pencil inserts pencil sharpener from left to right, pencil can be pressed onto pressing plate 13, make pressing plate 13 down extrusion spring 19, pressing plate driving shaft 14 also moves downward in movement slots 15 simultaneously, and drive plate lid driven shaft 21 down to move by connecting plate 16, now plate lid 2 is just closed upper, now rotation pencil pen bits would not spill, and sharpen a pencil after terminating, extract pencil out to the right, now due to the stretching, extension of spring 19, pressing plate 13 is up moved, and the final plate lid 2 that drives up moves, and achieves plate lid 2 and automatically opens.The design makes pencil sharpener can automatically opening and closing, uses convenient.