Liftable bookshelf for hardcover books in library

[0037] A liftable bookshelf for hardcover books in a library, such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 , Figure 8 with Figure 16 As shown, it includes a cabinet body 1, casters 2, lifting mechanism 3, display box mechanism 4, control component 5 and operation component 6, casters 2 are installed on the left and right sides of the bottom of the cabinet body 1, and a lifting mechanism is installed inside the cabinet body 1 3. The display box mechanism 4 is installed on the lifting mechanism 3, the control component 5 is installed on the lower part of the rear side of the cabinet body 1, and the operating component 6 is installed on the right side of the front side of the cabinet body 1.

[0038] The lifting mechanism 3 includes a bearing seat 31, a drive shaft 32, a chain 33, a servo motor 34, a drive sprocket 35, a connecting plate 36, a push block 37 and a power-off contact 39, and three bearings are installed on the left and

[0044] On the basis of Example 1, such as figure 2 , image 3 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 with Figure 15 As shown, a dust-proof assembly 7 is also included, and the dust-proof assembly 7 includes a mounting frame 71, a transparent acrylic plate 72, a first limit rod 73, a second limit rod 76, a rotating connection seat 77, a return spring 78 and a fixed Block 79, each box body 41 left and right sides are all provided with two first chute 74, all sliding type is provided with first stop bar 73 in each first chute 74, the first stop bar 73 of left and right sides Installing frame 71 is connected between bar 73, and transparent acrylic plate 72 is all connected on each installing frame 71, and second chute 75 is all opened in each box body 41 left and right sides, and the left and right sides of each installing frame 71 Each side is connected with a second limit rod 76, and the second limit rod 76 and the second chute 75 are