CN203182353U - Desk - Google Patents

Abstract

The utility model discloses a desk and particularly discloses a desk increasable in desk top using area. The desk comprises a desk top and two desk cavities, wherein a partition plate is arranged between the two desk cavities. The desk is characterized in that an auxiliary desk top is further arranged above the desk top, a support rod connected under the auxiliary desk top penetrates the desk cavities, the lower-end portion of the support rod is provided with a gear rack, a gear and the gear rack which are meshed with each other are arranged in the desk cavities, rotation of the gear is controlled through a crank, one end of the crank is arranged on the partition plate, the other end of the crank is arranged on the outer side face of one desk cavity, and a hook is further hinged to the outer side face of the desk cavity. The using area of the desk top can be increased to place a plurality of articles by lifting the auxiliary desk top.

Description

A kind of desk

(1) technical field

The utility model relates to the teaching aid field, particularly a kind of desk.

(2) background technology

Along with social competition is more and more fierce, this competition also spreads on one's body the students, and their lessons are more and more heavier, the books that need, material for review get more and more, and add some sundries, like this, it is more crowded that limited desk just seems, failed to lay down increasing article.

(3) summary of the invention

The utility model provides a kind of desk that can increase the desktop usable floor area in order to remedy the defective of prior art.

The utility model is achieved by the following technical solution:

A kind of desk, comprise desktop and two table holes, between two table holes dividing plate is arranged, it is characterized in that: the desktop top also has an auxiliary desktop, and the support bar that auxiliary desktop below connects passes a hole, the end portion of support bar is provided with the gear bar, be provided with the engagement of gear and gear bar in the table hole, gear is by crank control rotation, and an end of crank is located on the dividing plate, the other end is located on the lateral surface in a hole, also is hinged with hook on the lateral surface in table hole.

The beneficial effects of the utility model are: owing to be provided with auxiliary desk, when thing is too many, can shakes crank and make auxiliary desktop rise to certain altitude, increase the usable floor area of desktop, can place more article.

(4) description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Accompanying drawing 1 is main TV structure schematic diagram of the present utility model;

Accompanying drawing 2 be in the accompanying drawing 1 A-A to sectional view.

Among the figure, 1 desktop, 2 holes, 3 dividing plates, 4 auxiliary desktops, 5 support bars, 6 gear bars, 7 gears, 8 cranks, 9 hooks.

(5) specific embodiment

Accompanying drawing 1 is a kind of specific embodiment of the present utility model.This kind desk comprises between 2, two table holes 2 of desktop 1 and two table holes that dividing plate 3 is arranged, and also has an auxiliary desktop 4 above desktop 1, and the support bar 5 that auxiliary desktop 4 belows connect passes a hole 2, passes for 2 times from the table hole; Auxiliary desktop 4 lifting under the drive of support bar 5; As shown in Figure 2, the end portion of support bar 5 is provided with gear bar 6, in table hole 2, be provided with gear 7 and 6 engagements of gear bar, gear 7 is by crank 8 control rotations, crank 8 can rotate, its end is located on the dividing plate 3, and the other end is located on the lateral surface in a hole 2, also is hinged with hook 9 on the lateral surface in table hole 2.

During use, shake crank 8, gear 7 rotate synchronously with crank 8, simultaneously, gear bar 6 since with the engagement of gear 7, also along with the rotation of gear 7 is risen or descended, same, the rising of gear bar 6 or descend and also just drive auxiliary desktop 4 and rise or decline.After the height of auxiliary desktop 4 is determined well, catch on crank 8 with hook 9, prevent crank 8 reversings and auxiliary desktop 4 is descended automatically.

Claims (1)

1. desk, comprise desktop (1) and two table holes (2), dividing plate (3) is arranged between two table holes (2), it is characterized in that: desktop (1) top also has an auxiliary desktop (4), the support bar (5) that auxiliary desktop (4) below connects passes a hole (2), the end portion of support bar (5) is provided with gear bar (6), in table hole (2), be provided with gear (7) and gear bar (6) engagement, gear (7) is by crank (8) control rotation, one end of crank (8) is located on the dividing plate (3), the other end is located on the lateral surface of a hole (2), also is hinged with hook (9) on the lateral surface of table hole (2).

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