A kind of foldable structure and be provided with the desk of this foldable structure
Technical field
The utility model relates to the technical field of desk, particularly relates to a kind of foldable structure of desk and is provided with the desk of this foldable structure.
Background technology
Existing desk because volume is large, be not convenient for harvesting, carry or pack, transport, and take sizable space, thus need its table bracing frame to fold up, minimizing takes up room, and is convenient to receive and keep, carry or pack, transport.
See Fig. 1, existing a kind of flap table is given in figure, comprise table 10a, support foot rest 20a, 30a and hinge 40a, 50a, the upper end thereof of support foot rest 20a, 30a is at the two ends of the lower face of table 10a, one end of hinge 40a is hinged on the lower face of table 10a on the position of support foot rest 20a, its other end is hinged on support foot rest 20a on the position of its upper end, one end of hinge 50a is hinged on the lower face of table 10a on the position of support foot rest 30a, and its other end is hinged on support foot rest 30a on the position of its upper end.Time folding, support foot rest 20a, 30a are rotated to the center position of table 10a, meanwhile hinge 40a, 50a switches to folded state, thus support foot rest 20a, 30a are stacked on the lower face of table 10a.Although this flap table structure is simple, folding convenient, but support foot rest 20a, 30a cannot lock when open mode, in use support foot rest 20a, 30a easily rotates to the center position of table 10a because of false hit, thus the structure rather unstable of this flap table.
See Fig. 2, what provide in figure is another kind of existing flap table, comprise table 10b and support foot rest 20b, 30b, the middle part of support foot rest 20b, 30b is hinged, the lower face that the upper end of support foot rest 20b, 30b is connected to table 10b, along the lower face relative sliding of table 10b, the lower face of table 10b is configured with the position limiting structure spacing to support foot rest 20b, 30b.Time folding, support foot rest 20b, 30b are promoted towards the direction of table 10b, force the upper end of support foot rest 20b, 30b to free position limiting structure and along the lower face of table 10b to the two ends slippage of table 10b, thus make on the cross-shaped lower face being stacked in table 10b of support foot rest 20b, 30b.Although this flap table structure is simple, folding convenient, if but load-bearing is larger on table 10b, the upper end of support foot rest 20b, 30b is directly made to free position limiting structure and along the lower face of table 10b to the two ends slippage of table 10b, thus the structure of this flap table is still stable not.
For this reason, applicant carried out useful exploration and trial, have found result of the above problems, technical scheme described below produces under this background.
Utility model content
One of technical problem to be solved in the utility model is: there is structural unstable problem for existing flap table, and provide a kind of constitutionally stable desk fold mechanism.
Two of technical problem to be solved in the utility model is: provide a kind of desk being provided with above-mentioned foldable structure.
As a kind of fold mechanism of first aspect of the present utility model, comprising:
One supporting traverse, described supporting traverse is fixedly installed on the lower face of table along the length direction of table;
A pair articulated elements, one end of described a pair articulated elements is hinged on the two ends of described supporting traverse respectively, and its other end is fixedly connected with two support foot rests respectively;
Pair of locking-release lever, described pair of locking-release lever is movably arranged on described a pair articulated elements respectively; And
A pair clamping sheet, one end of described a pair clamping sheet is fixedly installed on the two ends of described supporting traverse respectively, the other end extends vertically and exposes the both ends of the surface of described supporting traverse, the part exposing supporting traverse both ends of the surface offers the buckling groove at its edge through vertically at described a pair clamping sheet;
When two support foot rests turn to roughly with table in vertical state time, pull pair of locking-release lever and be connected to respectively in the buckling groove of a pair clamping sheet, thus two support foot rests are locked on the lower face of table.
In a preferred embodiment of the present utility model, the cross section of described supporting traverse in " Qian " font and its " Qian " font opening towards the lower face of table; Described articulated elements comprises the brace that spaced first pin-joint piece that is parallel to each other is connected with described first pin-joint piece and the second pin-joint piece respectively with the second pin-joint piece and its both sides, one end of first, second pin-joint piece of described articulated elements is respectively by bolted splice on two lateral walls of the end of described supporting traverse, and its other end is welded on the crown center position of support foot rest; Described first pin-joint piece and the second pin-joint piece offer coaxial first mounting hole and the second mounting hole respectively, one end of described locking-unlocking handle is connected in the first mounting hole of described first pin-joint piece by a limiting card fitting active card, continues extension one segment distance after its other end extends axially through the second mounting hole of described second pin-joint piece.
In a preferred embodiment of the present utility model, the middle part that described locking-unlocking handle extends the handle body of the second mounting hole of described second pin-joint piece is formed with a bending part, and described bending part makes described handle body be positioned at the axis of the part of described bending part both sides not on the same line.
As the desk being provided with above-mentioned fold mechanism of second aspect of the present utility model, comprise table and be arranged on two support foot rests at lower face two ends of described table, one is provided with for described two support foot rests are overturn the fold mechanism be stacked on the lower face of table between described table and two support foot rests, it is characterized in that, described fold mechanism is above-mentioned fold mechanism.
Owing to have employed technical scheme as above, the beneficial effects of the utility model are: supported by support foot rest by manually directly quick, and utilize locking-unlocking handle to coordinate with the buckling groove of clamping sheet to lock, prevent from use rotating because of false hit, ensure that the stability of desk.Desk of the present utility model is opened with folding mode simple to operation, and Stability Analysis of Structures, take up room little, be convenient for carrying transport.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of existing a kind of flap table.
Fig. 2 is the structural representation of existing another kind of flap table.
Fig. 3 is the structural representation of desk of the present utility model.
Fig. 4 is the stereogram after desk of the present utility model folds.
Fig. 5 is the top view of Fig. 4.
Fig. 6 is I place's enlarged drawing of Fig. 4.
Detailed description of the invention
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
See Fig. 3 to Fig. 6, what provide in figure is the desk being provided with fold mechanism of the present utility model, comprise table 100 and be arranged on support foot rest 200a, the 200b at lower face 110 two ends of table 100, support foot rest 200a, 200b are made up of leg crossbeam 210a, a 210b and leg 220a, 230a, 220b, 230b of being connected to leg crossbeam 210a, 210b two ends.
At table 100 and be provided with one between support foot rest 200a, 200b for support foot rest 200a, 200b being overturn the fold mechanism be stacked on the lower face 110 of table 100.Fold mechanism comprises a supporting traverse 310, a pair articulated elements 320, pair of locking-release lever 330 and a pair clamping sheet 340.
Supporting traverse 310 is fixedly installed on the lower face 110 of table 100 along the length direction of table 100.Supporting traverse 310 is enclosed by crossbeam base plate 311 and side plate of crossbeam 312,313 and forms, and its cross section is in " Qian " font, and " Qian " font opening of supporting traverse 310 is towards the lower face 110 of table 100.
One end of a pair articulated elements 320 is hinged on the two ends of supporting traverse 310 respectively, and its other end is fixedly connected with support foot rest 200a, 200b respectively.Particularly, articulated elements 320 comprises the brace 333 that spaced first pin-joint piece 321 that is parallel to each other is connected with the first pin-joint piece 321 and the second pin-joint piece 322 respectively with the second pin-joint piece 322 and its both sides, first pin-joint piece 321 of articulated elements 320 and one end of the second pin-joint piece 322 are respectively by bolt 321a, 322a is hinged on two lateral walls of the end of supporting traverse 310, the i.e. side plate of crossbeam 312 of supporting traverse 310, on the lateral wall of 313 ends, its other end is welded on the crown center position of support foot rest 200a or support foot rest 200b, the i.e. leg crossbeam 210a of support foot rest 200a or support foot rest 200b, the centre position of 210b, first pin-joint piece 321 and the second pin-joint piece 322 of articulated elements 320 offer a coaxial first mounting hole 321b and the second mounting hole 322b respectively.
Pair of locking-release lever 330 is movably arranged on a pair articulated elements 320.Particularly, one end of locking-unlocking handle 330 is connected in the first mounting hole 321b of the first pin-joint piece 321 of articulated elements 320 by limiting card fitting 331 active card, continue extension one segment distance after its other end extends axially through the second mounting hole 322b of the second pin-joint piece 322 of articulated elements 320.The middle part that locking-unlocking handle 330 extends the handle body 332 of the second mounting hole 322b of the second pin-joint piece 322 of articulated elements 320 is formed with a bending part 332a, this bending part 332a make handle body 332 be positioned at the part 332b of bending part 332a both sides, 332c axis not on the same line, the long axis length of the second mounting hole 332b of the second pin-joint piece 322 that handle body 332 is positioned at the part 332b of bending part 332a both sides, the distance of the axis of 332c in the plane that both are common is greater than articulated elements 320.Operator can pull locking-release lever 330 by handle body 332 and move around along the long axis direction of the second mounting hole 322b of the second pin-joint piece 322 of articulated elements 320.
One end of a pair clamping sheet 340 is fixedly installed on the two ends of supporting traverse 310 respectively, be fixed on the madial wall of side plate of crossbeam 313 of supporting traverse 310 in particular by set bolt 341, its other end extends along the axis of supporting traverse 310 and exposes the both ends of the surface of supporting traverse 310, the part exposing support crossbeam 310 both ends of the surface at a pair clamping sheet 340 offers a buckling groove 342, and this buckling groove 342 is along the edge of the through clamping sheet 340 of axis of supporting traverse 310.
The use procedure being provided with the desk of fold mechanism of the present utility model is as follows:
When support foot rest 200a opened by needs, during 200b, first by support foot rest 200a, 200b to table 100 direction of both ends turn to roughly with table 100 in vertical state time, pull pair of locking-release lever 330 move along the long axis direction of the second mounting hole 322b of the second pin-joint piece 322 of articulated elements 320 and be connected in the buckling groove 342 of a pair clamping sheet 340 respectively, thus by support foot rest 200a, 200b is locked on the lower face 110 of table 100, even if in use run into strong collision, also support foot rest 200a can not be made, 200b deflects relative to table 100, ensure that the stability of desk.
As needs folding support foot rest 200a, 200b, only need pull pair of locking-release lever 330 move along the long axis direction of the second mounting hole 322b of the second pin-joint piece 322 of articulated elements 320 and depart from the buckling groove 342 of a pair clamping sheet 340 respectively, then support foot rest 200a, 200b after unlocking are stacked on the upper face 110 of table 100 along the third side of table 100 to upset.Desk of the present utility model is opened with folding mode simple to operation, and Stability Analysis of Structures, take up room little, be convenient for carrying transport.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.