CN2667232Y

CN2667232Y - Locking mechanism for doubling desk

Info

Publication number: CN2667232Y
Application number: CN 200320106048
Authority: CN
Inventors: 冷鹭浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-07
Filing date: 2003-10-07
Publication date: 2004-12-29
Anticipated expiration: 2013-10-07

Abstract

The utility model discloses a locking mechanism for doubling desk, comprising a first connective piece and a second connective piece, wherein, the two connective pieces above have a U-shaped section; the right part of first connective piece is provided with the left lug convex extending to the lower right direction, the left part of second connective piece is provided with the right lug convex extending to the lower left direction, and two left lugs and two right lugs are staggered and overlapped pre and post, and connected rotating with the first pin; and a lock joint piece, the left end of lock joint piece is pivoted between the two vertical sides wiht U-shaped section near the right end of first connective piece, the metal locked groove is arranged on the right end of lock joint piece; and the metal locked rod that is cooperated with the lock joint groove is provided at the corresponding position at left end of second connective piece, the twisted spring that can lock the lock joint groove on the metal locked rod is arranged on the second pin, and one end of second pin is extended out of first connective piece, then the wrench is arranged on the extended part. The utility model is being simple structure, and can make the folding desk keeping a stable locking state in using.

Description

Locking framework to folding table

Technical field

The utility model relates to the component of folding table, particularly a kind of locking framework that is used for the folding table of desktop doubling.

Background technique

Folding table can folding storage when not using, and in order to save basement limited in office or the family, thereby the application of folding table is very extensive.

It is collapsible and can be fastened on the bottom surface of desktop that folding table of the prior art is generally table leg so that when not using with its table leg folding, be placed in the wall limit, do not take up space.In order to save the space more and to be easy to carry more, its desktop is made up of two-part of doubling mutually usually, and its area of folding back is half of desktop area, and handle is set at the desktop edge, outer appearnce is similar to a casing, is easy to carry very much, uses in the time of can or camping in tourism.

Existing portable folding table comprises the small table surface that is equated by two block sizes, two small table surfaces together constitute a complete desktop, the bottom edge of every small table surface is installed with two crossbeams respectively, end between the corresponding crossbeam of different small table surfaces is mutually hinged, thereby can realize doubling mutually between two small table surfaces, the crossbeam below is located in the articulated section of this kind folding table crossbeam, and crossbeam top leans mutually, therefore, two small table surfaces can only overturn folding downwards, and can not upwards overturn, in use, the heavy burden of desktop top and the weight of desktop self make two small table surfaces can be in the same plane reposefully.But, when not bearing a heavy burden on the desktop,, overturn in two fritter desktop both sides, and the middle part raises up downwards, and makes folding table lose state stably if below, desktop middle part is stressed.The hinged place of crossbeam need be provided with locking framework, all can be in state stably so that folding table is stressed above or below when user mode no matter being.

Existing folding table has does not have locking framework, and the locking framework that has is too complicated, and inconvenience is used, thereby can not make people's folding folding table easily.

The model utility content

The utility model provides a kind of locking framework that is used for the folding table of desktop doubling, its main purpose be to overcome existing folding table be subjected under user mode as below in the middle part of the desktop in power, will lose the defective of plateau.

The utility model adopts following technological scheme: comprise that cross section is first link and second link of " Jiong " shape, two vertical edge Lower Halves of the right part of first link " Jiong " tee section are provided with the left lug that protrudes out to the lower right respectively, the right lug that two vertical edge Lower Halves of the left part of second link " Jiong " tee section protrude out below being provided with left respectively, upper half part of the left part of the upper half part of the first link right part and second link leans mutually, two left lugs and two right lugs are staggered front to back overlapping mutually, and by the rotating connection of first bearing pin, also comprise a fastener, the left end of this fastener by and second bearing pin fix and be articulated between two vertical edges of first link near " Jiong " tee section of right part, the right-hand member top of this fastener is provided with buckling groove, the relevant position of the left part of second link is provided with the fastening bar that matches with buckling groove, be arranged with the buckling groove that can make on the fastener on second bearing pin and be closely buckled in the torsion spring that fastens bar, one end of second bearing pin convexedly stretches in outside first link, and this convex extension part is installed with spanner.

The cross section of described fastener is " Jiong " shape, torsion spring set is located at second bearing pin and is positioned at part between fastener " Jiong " shape cross section two vertical edges, be provided with a supporting portion between two vertical edges of first link " Jiong " tee section, first extending end of torsion spring relies on this below, supporting portion, and second extending end of torsion spring relies on the below of fastener " Jiong " shape cross section horizontal edge.

By above-mentioned description to the utility model structure as can be known, in user mode, buckling groove on the fastener is under the effect of torsion spring torsion, upwards be closely buckled in and fasten on the bar, even thereby its middle part, below is subjected to power upwards, first link and second link still can be on the same straight line, at this moment, only need upwards pull spanner, fastener is the center with second bearing pin, rotate to the lower right, make the buckling groove that fastens on the bar disengaging fastener, can make second link this moment is that rotate to the lower right at the center with first bearing pin, to realize that first link and second fitting are that the center folds with first bearing pin, when this locking framework is used for folding table, first link and second fitting are individually fixed in the opposite end of the crossbeam of butt joint mutually, folding desktop below two, can realize the purpose that locks.As seen, the utility model structure is very simple, can make folding table locate a kind of lock state again preferably under user mode, and be unlikely to loss of stability.

Description of drawings

Fig. 1 is the utility model sectional structure schematic representation;

Fig. 2 looks up structural representation for the utility model;

Fig. 3 is the utility model external structure schematic representation;

Fig. 4 is the sectional structure schematic representation of the utility model folding process;

Fig. 5 is the structural representation of the utility model first link;

Fig. 6 is the structural representation of the utility model fastener;

Fig. 7 is for adopting the structural representation of folding table of the present utility model.

Specific embodiment

A specific embodiment of the present utility model, referring to figs. 1 through Fig. 7, this locking framework comprises first link 1 and second link 2, the left end of first link 1 is fixed in the right part of first crossbeam 10, the left part of second crossbeam 20 is fixed in the right part of second link 2, and first crossbeam 10 and second crossbeam 20 are fixed the edge with two small table surfaces belows of folding table respectively.Two small table surfaces of this folding table promptly fold with the cooperation of first link 1 and second link 2.

The cross section of first link 1 and second link 2 is " Jiong " shape, two vertical edge Lower Halves of the right part of first link 1 " Jiong " tee section are provided with the 11 left lugs that protrude out to the lower right respectively, the right lug 12 that two vertical edge Lower Halves of the left part of second link 2 " Jiong " tee section protrude out below being provided with left respectively, upper half part of the upper half part of first link, 1 right part and the left part of second link 2 leans mutually, two left lugs 11 and two right lugs 12 are staggered front to back overlapping mutually, and connect rotationally by first bearing pin 41, it can only be that rotating shaft folds downwards with first bearing pin 41 that this structure makes first link 1 and second link 2, and can not upwards fold.

Be provided with a fastener 3 between first link 1 and second link 2, the cross section of this fastener 3 is " Jiong " shape, the left end of this fastener 3 is articulated between two vertical edges of first link 1 near " Jiong " tee section of right part by second bearing pin 42, the left end of this fastener 3 and second bearing pin 42 are fastened to each other, the right-hand member top of this fastener 3 is provided with buckling groove 30, the relevant position is provided with one and fastens bar 43 between two vertical edges of the left part of second link 2 " Jiong " tee section, and the buckling groove 30 on the fastener 3 upwards is fastened on and fastens on the bar 43.The part that second bearing pin 42 is positioned between fastener 3 " Jiong " shape cross section two vertical edges is arranged with torsion spring 6, be provided with a supporting portion 44 between two vertical edges of first link 1 " Jiong " tee section, the extending end on torsion spring 6 left sides relies on this 44 belows, supporting portion, the extending end on torsion spring 6 the right relies on the below of fastener 3 " Jiong " shape cross section horizontal edge, under the effect of torsion spring 6 torsion, the buckling groove 30 of fastener 3 right-hand members top is closely buckled in to fasten on the bar 43.

One end of second bearing pin 42 convexedly stretches in outside first link 1, and this convex extension part is installed with spanner 5.

With reference to Fig. 7, all adopt locking framework of the present utility model in the both sides of two small table surface butt joints of folding table, second bearing pin 42 of two locking frameworks fuses, and during folding, no matter in which side of desktop, all can operate.

In user mode, buckling groove 30 on the fastener 3 is under the effect of torsion spring 6 torsion, upwards be closely buckled in and fasten on the bar 43, even thereby middle part, desktop below is subjected to power upwards, first link 1 and second link 2 still can be on the same straight line, can make two small table surfaces be in steady state, be lock state this moment.If will fold to folding table, only need upwards pull spanner 5, fastener 3 is the center with second bearing pin 42, rotate to the lower right, make and fasten the buckling groove 30 that bar 43 breaks away from the fastener 3, can make second link 2 this moment is that rotate to the lower right at the center with first bearing pin 41, is that the center folds to realize first link 1 and second fitting 2 with first bearing pin 41, thereby can realizes the folding process of folding table.The process of opening folding table is opposite with said process.

Claims

1, locking framework to folding table, comprise that cross section is first link and second link of " Jiong " shape, two vertical edge Lower Halves of the right part of first link " Jiong " tee section are provided with the left lug that protrudes out to the lower right respectively, the right lug that two vertical edge Lower Halves of the left part of second link " Jiong " tee section protrude out below being provided with left respectively, upper half part of the left part of the upper half part of the first link right part and second link leans mutually, two left lugs and two right lugs are staggered front to back overlapping mutually, and by the rotating connection of first bearing pin, it is characterized in that: also comprise a fastener, the left end of this fastener by and second bearing pin fix and be articulated between two vertical edges of first link near " Jiong " tee section of right part, the right-hand member top of this fastener is provided with buckling groove, the relevant position of the left part of second link is provided with the fastening bar that matches with buckling groove, be arranged with the buckling groove that can make on the fastener on second bearing pin and be closely buckled in the torsion spring that fastens bar, one end of second bearing pin convexedly stretches in outside first link, and this convex extension part is installed with spanner.

2, the locking framework to folding table as claimed in claim 1, it is characterized in that: the cross section of described fastener is " Jiong " shape, torsion spring set is located at second bearing pin and is positioned at part between fastener " Jiong " shape cross section two vertical edges, be provided with a supporting portion between two vertical edges of first link " Jiong " tee section, first extending end of torsion spring relies on this below, supporting portion, and second extending end of torsion spring relies on the below of fastener " Jiong " shape cross section horizontal edge.