Novel reading table for library
A reading table and library technology, applied in the field of new library reading tables, can solve the problems of instability, troublesome operation, waste of time, etc., and achieve the effects of strong practicability, simple structure and convenient use.
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Embodiment 1
[0032] Example one, combined with Figure 1-18 , A new type of library reading desk, including a base 1, characterized in that the upper end of the base 1 is connected to a reading desk 2 via a lifting device, and the reading desk 2 can be adjusted in the up and down direction through an upgrade device, which is convenient to use The reading table 2 is a shell structure, and the rear end of the reading table 2 is connected with a clamping device, which satisfies the clamping device to clamp the manuscript or book being read. The clamping device is When reading books or manuscripts, it is convenient to hold them;
[0033] A vertical tube 3 is installed in the reading table 2. The inner side wall of the vertical tube 3 is provided with a spiral limiting groove 4, and the upper and lower ends of the limiting groove 4 are connected with an extension arranged in a horizontal direction. The groove 5 and the limit groove 4 are in a spiral shape and smoothly transition with the extensio...
Embodiment 2
[0038] The second embodiment, on the basis of the first embodiment, combined with the attached Figure 1-18 The lifting device includes four sets of fixed rods 33 connected to the bottom of the reading table 2, and also includes sleeve rods 34 connected to the base 1 and slidably fitted with the four sets of fixed rods 33. The lower end of the reading table 2 A screw 35 is connected, and the screw is threadedly fitted with the screw sleeve 36 that is rotatably connected to the base 1. The rotation of the screw sleeve 36 is limited by the four groups of fixed rods 33 and the sleeve rod 34. The screw 35 and the reading table 2 connected to it are adjusted vertically. The screw sleeve 36 is coaxially connected to the fourth gear 37, and the fourth gear 37 engages a rotating connection on the base 1. Fifth gear 38. The fifth gear 38 is coaxially connected to a first bevel gear 39. The base 1 is connected to a main shaft 40 for lateral rotation, and the main shaft 40 is connected to...
Embodiment 3
[0039] The third embodiment, on the basis of the first or second embodiment, combined with the attached Figure 1-18 The clamping device includes a rectangular plate 55 hinged on the rear end of the reading table 2. The rectangular plate 55 is provided with a hollow hole structure. The right side of the rectangular plate 55 is slidably connected along the length direction of the side surface. The bayonet 56 is slidably connected to a sliding groove formed on the side wall of the rectangular plate 55, and a fifth spring 57 is connected between the upper end of the bayonet 56 and the side wall of the rectangular plate 55. The right end of the table 2 is connected to a chuck 58. The chuck 58 has several sets of grooves 59 cooperating with the locking pins 56 along the circumference. Pull the locking pins 56 upwards to compress the fifth spring 57 and then rotate After the rectangular plate 55 reaches the designated position, release the locking pin 56. Under the action of the fift...
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