Adjustable bookshelf for library
A library and bookshelf technology, applied in the field of library equipment, can solve the problems of the librarian having trouble arranging books, the trouble of borrowing books, the inconvenience of borrowing personnel, etc.
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Embodiment 1
[0026]Embodiment 1, an adjustable bookshelf in a library, including a frame 1, is characterized in that a drive shaft 2 is mounted on the bottom of the frame 1 for horizontal rotation, and the drive shaft 2 is driven by a power device, and the two ends of the drive shaft 2 are symmetrical Two groups of driving bevel gears 3 are fixedly installed, and the driving bevel gears 3 vertically mesh with the driven bevel gears 4 respectively. One end of the driven bevel gears 4 is fixedly mounted with a driven shaft 5 that is rotatably fitted in the frame 1, so The front and rear sides of the driven shaft 5 have a clockwise screw 6 and a counterclockwise screw 7 which are rotatably installed in the frame 1 and have opposite thread directions. The clockwise screw 6 and the driven shaft 5 are connected by a transmission , the gear transmission connection between the counterclockwise lead screw 7 and the driven shaft 5, the clockwise lead screw 6 is threaded with a first slider 8 that is ...
Embodiment 2
[0030] Embodiment 2, on the basis of Embodiment 1, the book anti-slipping device includes a connecting plate 34 fixedly installed on the gear transmission shaft 19, and the connecting plate 34 is longitudinally fixed with a telescopic tube 35, and the telescopic tube A third connecting rod 36 is slidably fitted in the 35, and one end of the third connecting rod 36 is connected with the bottom surface of the telescopic tube 35 through a return spring 37, and the other end is horizontally fixedly connected with a book baffle 38 cooperating with the bookshelf 22.
[0031] When this embodiment is in use, we refer to the attached Figure 1-10 As shown, when the first gear 20 of the second bookshelf 11 meshes with the rack 21 of the frame 1, the gear transmission shaft 19 fixedly installed on the first gear 20 rotates, and the connecting plate 34 fixed on the gear transmission shaft 19 starts Action, when the connecting plate 34 is meshed with the rack 21 at the first gear 20, first...
Embodiment 3
[0032] Embodiment 3, on the basis of Embodiment 1, the automatic clamping device includes a clamping screw 39 that is rotatably installed in the bottom surface of the bookshelf 22, and the clamping screw 39 is engaged with a symmetrical arrangement and is connected to the bookshelf 22. Two groups of clamping sliders 40 that are slidingly matched, one end of the two groups of clamping sliders 40 is fixedly equipped with a clamping baffle 41 that slides in the bookshelf 22, and the front of the clamping baffle 41 has a sliding Cooperate with the first clamping baffle 42 on the clamping slider 40, the clamping baffle 23 and the first clamping baffle 23 are connected by a first return spring 43, and the clamping baffle 41 A trigger lever 50 is fixedly connected to the top, and a trigger switch 51 corresponding to the trigger lever 50 is fixedly connected to the first clamping baffle 42. The clamping screw 39 is fixedly installed on the side 22 of the bookshelf. The stepper motor 4...
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