CN203885016U - Desk with foldable bookshelf - Google Patents

Abstract

The utility model relates to a desk with a foldable bookshelf, which comprises a desk body and a foldable bookshelf. The foldable bookshelf is composed of a hinge four-bar linkage mechanism. The bottom plate 2 of the bookshelf is fixed with a side link BC as a whole. The fixed hinge point A and the fixed hinge point D of a side link AB and a side link CD are arranged on the determined positions of the side panel of the desk. Through rotating the hinge four-bar linkage mechanism, the bottom plate 2 of the bookshelf can respectively be positioned horizontally above the desktop of the desk, and can also be folded and withdrawn to vertically abut against the front side panel of the desk. During usage, the desk provides a relatively comfortable learning space for students during the writing and reading process, and also provides a space guarantee to ensure the writing postures of students to be correct enough. Meanwhile, the desk with the foldable bookshelf is simple in operation, and convenient to use and carry about for students.

Description

Desk with foldable bookshelf

Affiliated technical field

The utility model relates to a kind of desk with foldable bookshelf, makes desktop vacate larger space, thereby be convenient to student, read, writes.

Background technology

At present, at school's split run, give lessons in classroom, major part is all to use single little desk, this desktop area less (being generally 40cm * 60cm), and the teaching material of the various courses that a lot of students (particularly Higher Vocational Technology Institute student) learn whole halves, reference book, homework book etc. are completely all placed in the table thorax of desk and on desktop, owing to putting on the many desktops of books, piling up, more books have been played (for the ease of browsing, search and using, students is often more ready books to be stacked on desktop, and is not placed in a thorax.), thereby occupied space larger on desktop.This has just greatly hindered students to review one's lessons at ordinary times, do the homework and record the note in classroom, has also seriously affected the normal writing posture of student simultaneously, on the growth of health, growth, all can bring bad impact.

Summary of the invention

For solving the above problems, the utility model provides a kind of desk with foldable bookshelf, is positioned at the top of desktop when bookshelf is propped, and can pile up books, facilitates student to take at any time.While not using bookshelf, collapsible putting down with desk front panel is close together, and do not take up space, and is convenient to carrying.

The purpose of this utility model is achieved through the following technical solutions: the motion of kink four bar linkage of take is operation principle, as shown in Figure 1, hinge point A, hinge point D are fixedly arranged in respectively the position of setting on side of desk panel, side link AB, side link CD, connecting rod BC and fixed bar AD (being side of desk) form a kink four bar linkage, have been installed with bookshelf base plate 2 on connecting rod BC.Shown in Fig. 1, be bookshelf horizontally disposed position of bookshelf base plate 2 while propping, the positions that when to be that bookshelf is folding shown in Fig. 2 regain, bookshelf base plate 2 is vertically arranged.For determining the size of kink four bar linkage, first setting connecting rod BC (bookshelf base plate 2) (should be drawn in same figure during design) in the position shown in Fig. 2 with connecting rod BC in the position shown in the figure 1, then by diagram method, determine hinge point A, the position of hinge point D on side of desk panel, AD is frame bar, connect AB 2 o'clock as a side link, connect 2 of CD as another side link, thereby the length of having determined two side links, kink four bar linkage has designed.Several little hooks (attached not shown in FIG.) can be set on side link, can hang the article such as pen container or the pen cap, water tumbler, umbrella.

The beneficial effects of the utility model: temporary transient no books all can be piled up on bookshelf base plate, thereby make way on desktop, offer comfortable studying space of student, record the note, do one's assignment or read books, for keeping a correct writing posture that space assurance is provided.When bookshelf is not used, collapsible withdrawal bookshelf base plate 2 is vertical not to take up room by desk front panel, is conducive to the stacking of desk and is convenient to carrying.

Accompanying drawing explanation

Fig. 1 is bookshelf side of desk perspective view while propping.

Fig. 2 is that bookshelf folds side of desk perspective view while putting down.

1. alignment pins in Fig. 1,2. bookshelf base plate.

The specific embodiment

As shown in Figure 1, according to requirements can make the position of this kink four bar linkage when bookshelf is used, both bookshelf base plate 2 was positioned at horizontal level.While requiring the folding withdrawal of bookshelf, due to the constraint of kink four bar linkage, bookshelf base plate 2 is turned near desk front panel, position as shown in Figure 2.The position of propping at bookshelf shown in Fig. 1, the locating hole of setting on the hole on side link CD and desk side plate coincides, and at this moment inserts alignment pin 1, thereby guarantees that bookshelf keeps maintaining static.While needing the folding withdrawal of bookshelf, extract the alignment pin 1 on side link CD, bookshelf base plate 2 overturns downwards, at this moment side link AB and side link CD, around hinge point A separately and hinge point D, rotate respectively, until bookshelf base plate 2 is vertically by desk front panel, folding process finishes.

Claims (1)

1. with the desk of foldable bookshelf, it is characterized in that: foldable bookshelf is comprised of kink four bar linkage, on connecting rod, be installed with bookshelf base plate, two side link fixed hinge point are all set in respectively on side of desk panel, rotate this kink four bar linkage, can make bookshelf base plate lay respectively at horizontally disposed position and the folding position standing up near desk front panel of regaining, side on the table.