CN2032420U

CN2032420U - Cyclic rising-and-falling bookcase

Info

Publication number: CN2032420U
Application number: CN 88211794
Authority: CN
Inventors: 王飞
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-05-19
Filing date: 1988-05-19
Publication date: 1989-02-15

Abstract

The utility model discloses a cyclic rising-and-falling bookcase which is used for libraries and other library situations, which comprises frames, a plurality of book shelves, a transmission and elevating mechanism of a left and a right chain and a driving mechanism. The utility model can be driven by electric or human power. Due to the adoption of the double-row placement of the book shelves and the increasing of the frame height, the library capacity is increased and the pedestrian passageway area is reduced. The utility model can be elevated circularly, which is convenient for library management.

Description

Cyclic rising-and-falling bookcase

The utility model relates to a kind of furniture, specifically, is a kind of bookcase that is used for places such as library, reference room, file store.

The used bookcases in place such as present library, libliotheca, reference room and file store, commonly used is fixed frame hierarchy type bookcase.This class bookcase exists collected books capacity and use, managerial contradiction.For example, in order to increase the collected books capacity, just must make tall and big bookcase, this to the reader search books and periodicals, the staff manages books and periodicals, and is all very inconvenient, want cat ladder inevitably and bend over to kneel ground.Simultaneously, every layer of collected books can only singlely be placed, and like this, the shared ground of pavement and bookcase is almost equal in the stack room.If widen the bookcase width, every layer of collected books adopt double laying, and can reduce the pavement area occupied relatively, but to lining row's collected books inconvenience management.

The purpose of this utility model provides a kind of bookcase of lifting capable of circulation, so that increase collected books capacity and the management to collecting books.

The utility model is achieved in that the dual-side at the bookcase framework, and by the chain transmission elevating mechanism of the symmetry of pretending, book supporting board splits inside and outside two row, and the two ends of every row book supporting board are respectively by corresponding chain-drive mechanism tractive, and the maintenance level is laid state.During use, start actuating unit, make the chain-drive mechanism synchronization action of both sides, the synchronization lifting and the circulation of about two row book supporting boards that reach book supporting board are moved.Be that the utility model comprises framework, book supporting board, left driven sprocket, right driven sprocket, left drive sprocket, right drive sprocket, left closed chain, right closed chain, and the lifting power part.Total several book supporting boards, the two ends of each book supporting board are equipped with inserts axle, respectively with left and right closed chain on corresponding bearing pin loose fit, suitable distance is arranged between adjacent book supporting board.

The utility model has the advantages that: 1, the height of bookcase can increase as far as possible, and the reader uses and the management of administrative staff to collecting books and do not influence.According to library catalogue number, the book supporting board of respective number is elevated to rational height, carry out access and lay; 2, can increase owing to the bookcase height, and about two row book supporting boards are set, increase the collected books capacity greatly; 3, the ground space utilization rate in collected books place is improved greatly, reduce the pavement area occupied significantly.

The utility model is implemented by the following drawings.

Fig. 1 is the electronic Circularly liftable bookcase of a utility model structural representation.

Fig. 2 is the utility model human powered cycles rising-and-falling bookcase structural representation.

Fig. 3 is the bearing pin 4 and the schematic diagram that cooperates of inserting axle 5 on the closed

chain

3,17.

Fig. 4 is book supporting board 6 and the connection schematic diagram of inserting axle 5.

Fig. 5 is the utility model circuit diagram.

Fig. 6 is the utility model people driven part schematic diagram.

Provide embodiment of the present utility model with reference to the accompanying drawings, ins and outs of the present utility model further are provided.

Example 1, according to Fig. 1 and Fig. 3～5, provide electronic Circularly liftable book frame of the present utility model.Among Fig. 1, a left side driven sprocket 16, left drive sprocket 15 be contained in respectively limit, the left side upper and lower of framework 1 suitably highly high on, constitute chain-drive mechanism with closed chain 17, symmetrical with it, the right edge of framework 1 by adorn right driven sprocket 2, right drive sprocket 14, and and closed chain 3 constitute chain-drive mechanisms.The two ends of book supporting board 6 are equipped with respectively and are inserted axle 5, and with closed

chain

3,17 on corresponding bearing pin 4 with loose fit.Total several book supporting boards 6 are distributed into about two row.Connect mutually with shaft coupling 7 between the left and right drive sprocket 15,14.Driver part comprises motor 10, worm screw 11, worm gear 12, driven sprocket 8, drive sprocket 13 and closed chain 9 and contactor and fuse.Sprocket wheel 8 is connect by shaft coupling 7 with sprocket wheel 14,15.Sprocket

wheel

8,13 and chain 9 constitute chain-drive mechanism.12 one-tenth Worm and Worm Gear Driving of worm screw 11 and worm gear.Motor 10 connects with worm screw 11, and worm gear 12 connects with sprocket wheel 13.Like this, one actuating motor 10, worm screw 11 is just rotated, thereby worm gear 12 is given in transmission, cause sprocket wheel 13 actions, give sprocket wheel 8 by chain 9 transmissions, and impel shaft coupling 7 to rotate, and cause left and right drive sprocket 15,14 work, make book supporting board 6 be subjected to the chain transmission and lifting, transmission direction are determined by the just reverse of motor 10.The motor 10 of present embodiment adopts and exchanges monopole asynchronous motor JD, sees Fig. 5, the turning to respectively by combination button NA of motor 10 ₁, NA ₂, NA ₃And ZA ₁, ZA ₂, ZA ₃Decision for reverse and just change, K ₁Be power switch, R _DBe fuse, closed chain 3 in the present embodiment and 17 is formed by the GB1243-76 transformation of the way, see Fig. 3, take out existing bearing pin, the bearing pin 4 that inserts the transformation of the way forms, bearing pin 4 is the solid pole of a band bobbin head, round bar part and existing bearing pin consistent size have screw 18 on its bobbin head, when inserting the bobbin portion of axle 5 insertion bearing pins 4, by screw 19 location that match with screw 18, insert axle 5 and bearing pin 4 loose fits to reach.Like this, when book supporting board 6 changes interior row over to because of chain is transferred to by outer row, or during rightabout, at the turning, unlikely inclination and cause that the collected books on it are scattered.The wide of this routine book supporting board 6 got 200 millimeters, opens collected books for 16, and the distance of the adjacent book supporting board 6 of same column is got 445 millimeters.The connection of book supporting board 6 and slotting axle 5 adopts tripodia to fix or fix with the T-shape angle bar as shown in Figure 4.Button NA ₁, NA ₂, NA ₃And ZA ₁, ZA ₂, ZA ₂, ZA ₃Constitute gauge tap NA and ZA respectively.

Example 2, provide the utility model manually driven Circularly liftable bookcase according to Fig. 2～4 and Fig. 6.This example is the formation of driver part with the difference of example 1, and handle 20 is arranged on the book supporting board 6.This routine driver part comprises that left and

right brake pad

25,21, bearing support 22, pedal 23 and spring 24, spring 24 are fixed on the bottom center of framework 1, pedal 23 is by putting on spring 24, bearing support 22 is the Qian font, it and pedal 23 tightly connect, and left and

right brake pad

25,21 is contained in the two ends of bearing support 22 respectively.Left and

right brake pad

25,21 is made by the rubber material, connects mutually with the rotating shaft of arcwall face with left and

right drive sprocket

15,14 respectively, and is shown in Figure 6.

Claims

1, a kind of Circularly liftable bookcase that framework 1 and some book supporting boards 6 are arranged is characterized in that the left-right symmetry chain transmission synchronization lifting parts and the lifting driver part that are made of left and right driven sprocket 16,2, left and right drive sprocket 15,14 and closed chain 17,3 in addition;

There is the axle of inserting 5 at the two ends of every book supporting board 6, and corresponding bearing pin 4 is positioned to loose fit through screw 19 and screw 18 on slotting axle 5 and the closed chain 3,17;

6 of adjacent book supporting boards have suitable distance, arrange by about two row.

2,, it is characterized in that said driver part comprises motor 10, worm screw 11, worm gear 12, sprocket wheel 8,13, closed chain 9 and electric combination gauge tap NA and ZA, fuse R according to the described bookcase of claim 1 _DSprocket wheel 8 is connect by shaft coupling 7 with sprocket wheel 14,15.

3, according to the described bookcase of claim 1, it is characterized in that said driver part comprises brake pad 21,25, bearing support 22, pedal 23 and spring 24, brake pad 21,25 is adorned at bearing support 22 two ends respectively, its central part and pedal 23 tightly connect, pedal 23 is by putting on spring 24, and brake pad 25,21 connects with cambered surface with left and right drive sprocket 15,14 respectively.

4,, it is characterized in that having on the book supporting board 6 handle 20 according to claim 1 or 2 described bookcases.