A kind of double dynamical lifting desk surfaceTechnical field
The present invention relates to field of office furniture, particularly relate to a kind of double dynamical lifting desk surface。
Background technology
Along with social development, office's occupation disease is in rising trend。Traditional desk height is all constant, or can customize height when manufacturing, but once after being delivered for use, it is highly also difficult to change；Clerk is chronically in the office table desktop of sustained height and handles official business, very easily produce the occupation disease of waist, back, cervical region or leg。Owing to these occupation disease caused because of sitting annoying many workers, it is abroad come into vogue standing posture office or station seat interactive mode office at first。The benefit that this office has is a lot, especially can solve the generation of some waist cervical spondylosiss, but also has effect of fat-reducing, understands this mode by research report and can also promote the work efficiency of 10%-30%。
Owing to needing the inappropriate problem of height of table top that switching is stood and two kinds of working waies of A seating cause, market occurs in that lifting desk surface, this desktop can be placed on other desk, very thin thickness, carry out unrestricted choice adjustable height by electronic or manual mode, facilitate standing posture and the switching of A seating office。But the kind of drive of tradition lifting desk surface is the unilateral lifting screw that passes through drives a support component (being support prong) to strut or draw in, and lifting desk surface both sides, by the drive Tong Bu with gangbar of umbrella tooth, synchronize them steady lifting；But it is disadvantageous in that: the complicated mechanism of this kind of mechanical elevating desktop, heaviness, installation difficulty and transmission accuracy require height, not only increase production cost, also add the deadweight of lifting desk surface, not easily carrying and transport；It addition, the umbrella tooth engaged transmission efficiency under this structure is low, cause the increase of very big transmission kinetic energy loss and gearing noise。
Summary of the invention
In order to solve the problems referred to above, it is an object of the invention to provide a kind of double dynamical lifting desk surface, this double dynamical lifting desk surface adopts traction steel wire traction to drive and supports assembly, it is achieved desktop lifts；Not only simplify internal structure so as to cost alleviates, conducting oneself with dignity lightens, and eliminated gear-driven mechanical loss, thus reducing required driving force and produced drive noise。
In order to realize above-mentioned purpose, present invention employs following technical scheme:
A kind of double dynamical lifting desk surface, including desktop cover board, and is arranged on a support system of desktop cover board lower end, and for driving the drive system of a support component；Described support system includes pedestal, and is arranged on the support component between pedestal and desktop cover board；It is characterized in that: described drive system includes the driving assembly being arranged in the middle part of desktop cover board, and bearing positions and is connected to the rotating shaft driven on assembly outfan, and it is set in the traction element in rotating shaft, and the traction steel wire on desktop cover board it is positioned at by rotating disk, traction element drives a support component by traction steel wire；The front middle part of described desktop cover board is provided with axis hole, drive assembly to include being located in axis hole and can the external handle of coaxially connected rotating shaft, and be arranged on the electric drive on desktop cover board, the outfan of electric drive connects described rotating shaft by shaft coupling。
As preferably, described support component includes first body of rod and second body of rod that middle part is hinged, and slide in the upper end of first body of rod and in hinged the first slide rail being arranged on desktop cover board, the bottom of first body of rod is hinged on pedestal；The upper end of second body of rod is hinged on desktop cover board, slides and hinged be arranged in pedestal slide rail in the bottom of second body of rod。
As preferably, described support system also includes the startup power-assisted assembly being arranged on the first body of rod sliding end, starting power-assisted assembly and include starting bar and assister bar, sliding and hinged be arranged on first body of rod in the upper end of starting bar, the bottom of starting bar can roll with pedestal and coordinate；The both ends of described assister bar are respectively hinged on starting bar and first body of rod, and traction steel wire is connected on the sliding end of starting bar。In the structure shown here, prop up support component during starting and obtain a tripping force by starting power-assisted assembly, it is possible to resolve the problem of desktop lifting starting difficulty, and ensure that desktop lifting starting is stable。
As preferably, described starting bar is the obtuse angle bar integrally connected and composed by the upper body of rod and the lower body of rod, and the upper body of rod is shorter than the lower body of rod；The end of described assister bar is hinged on the end angle of starting bar。Under this structure, the lower body of rod of starting bar is longer and obtains a relatively large staring torque, desktop can be promoted to be prone to starting and rise。
As preferably, the hinged end of described assister bar and first body of rod is on the extended line of the sliding end of starting bar。
As preferably, described support system also includes auxiliary support component, and auxiliary support component includes auxiliary support mobile jib and auxiliary support pair bar, and the upper end of auxiliary support mobile jib is slidably arranged in the second slide rail of desktop cover board, and the bottom of auxiliary support mobile jib is hinged in base ends；The upper end of the secondary bar of auxiliary support is hinged on desktop cover board, and the bottom of the secondary bar of auxiliary support is hinged on the middle part of auxiliary support mobile jib；Adopt a support component can promote the stability after lifting desk surface launches。
As preferably, the lead of described traction steel wire is to be drawn by the front middle part of desktop panel, through the front side portion of desktop panel, is finally coupled on the starting bar of desktop panel rear lateral portion。
As preferably, described traction element is draw nut, draw nut offers the nut axis hole axially penetrating through its body and the traction through hole longitudinally through its body, and extends transversely through the cable hole of its body；Described traction through hole and cable hole are two, and two traction through holes and two cable holes are respectively at the both sides of nut axis hole；Described traction through hole includes the manhole of the inner and the linear through hole communicated with manhole, and the inner end of cable hole communicates with in the middle part of traction through hole, and the outer end of cable hole is opened on body side。During use, traction steel wire is drawn by the traction through hole of draw nut, controls traction steel wire folding and unfolding by circumferentially rotating of draw nut, and then controls desktop cover board lifting。
The present invention adopts technique scheme, drives traction element by external handle or electric drive in this lifting desk surface, and traction element drives a support component by traction steel wire, thus finally realizing desktop lifting；Compared to existing machine driving lifting desk surface, this lifting desk surface has not only simplified internal structure so as to cost alleviates, conducting oneself with dignity lightens, and eliminates gear-driven mechanical loss, thus reducing required driving force and produced drive noise。
Accompanying drawing explanation
Fig. 1 is the bottom surface structure schematic diagram of the present invention。
Fig. 2 is the Facad structure schematic diagram of the present invention。
Fig. 3 is the side rounding state structural representation of the present invention。
Fig. 4 be the present invention expansion process in first stage done state schematic diagram。
Fig. 5 is the side its fully unfolded position structural representation of the present invention。
Fig. 6 is the Facad structure schematic diagram of draw nut。
Fig. 7 is the cross-sectional view of draw nut。
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the invention are described in further detail。
The double dynamical lifting desk surface of one as shown in Fig. 1 ~ Fig. 7, including desktop cover board 1, and is arranged on a support system of desktop cover board 1 lower end, and for driving the drive system of a support component。Described support system includes pedestal 21, and is arranged on support component and the auxiliary support component between pedestal 21 and desktop cover board 1。
Described drive system includes the driving assembly being arranged in the middle part of desktop cover board 1, and is arranged on the rotating shaft 31 driven on assembly output shaft, and is set in the traction element in rotating shaft 31, and is positioned at the traction steel wire 33 on desktop cover board 1 by rotating disk 32。Described rotating shaft 31 is positioned on desktop cover board 1 by bearing, traction element drives a support component by traction steel wire 33, the lead of traction steel wire 33 is to be drawn by the traction element of desktop panel front middle part, through the front side portion of desktop panel, it is finally coupled on the startup power-assisted assembly of desktop panel rear lateral portion。As shown in Figure 1；This lifting desk surface can adopt two kinds of type of drive, is divided into manual actuation and motorized motions；Wherein the structure of manual actuation is, desktop cover board 1 is provided with axis hole 11, drive assembly to include being located in axis hole and can coaxially connected rotating shaft 31 drive the external handle 341 of traction element, driven rotating shaft 31 and traction element thereon by external handle 341, thus controlling traction steel wire 33 folding and unfolding。Electric structure is, assembly is driven to include the electric drive 342 being arranged on desktop cover board 1, the outfan of electric drive 342 is by shaft coupling 343 connection rotating shaft 31 and drives traction element, is driven rotating shaft 31 and traction element thereon by electric drive 342, thus controlling traction steel wire 33 folding and unfolding。Above two method at control method is, when needs motorized adjustment, only need to not access external handle 341；When the purely manual adjustment of needs, it is necessary to untie the shaft coupling 343 on the outfan of electric drive 342, namely release the annexation between electric drive 342 and rotating shaft 31, now access external handle 341 that is manually adjustable。
Described traction element is draw nut 35, draw nut 35 offers the nut axis hole 351 axially penetrating through its body and the traction through hole 352 longitudinally through its body, and extends transversely through the cable hole 353 of its body；Described traction through hole 352 and cable hole 353 are two, and two traction through holes 352 and two cable holes 353 are respectively at the both sides of nut axis hole 351；Described traction through hole 352 includes the manhole of the inner and the linear through hole communicated with manhole, and the inner end of cable hole 353 communicates with in the middle part of traction through hole 352, and the outer end of cable hole 353 is opened on body side。During use, traction steel wire 33 is drawn by the traction through hole 352 of draw nut 35, controls traction steel wire 33 folding and unfolding by circumferentially rotating of draw nut 35, and then control desktop cover board 1 lifts。
Described support component includes first body of rod 22 and second body of rod 23 that middle part is hinged, slide and in hinged the first slide rail 12 being arranged on desktop cover board 1 in the upper end of first body of rod 22, being on the side of desktop cover board 1 in first slide rail 12, the bottom of first body of rod 22 is hinged on pedestal 21。The upper end of described second body of rod 23 is hinged on desktop cover board 1, and sliding and hinged be arranged in pedestal slide rail in the bottom of second body of rod 23, pedestal slide rail is on pedestal 21。
Described first body of rod 22 sliding end is provided with startup power-assisted assembly, start power-assisted assembly and include starting bar 24 and assister bar 25, slide and hinged be arranged on first body of rod 22 in the upper end of starting bar 24, specifically the sliding end of first body of rod 22 is provided with chute, the upper end of starting bar 24 is arranged in chute 26, it is possible to this rotates for axle point；Traction steel wire 33 is connected on this sliding end of starting bar 24。The bottom of starting bar 24 can roll with pedestal 21 and coordinate, and is specifically provided with roller 27 on the bottom of starting bar 24。Described starting bar 24 is the obtuse angle bar integrally connected and composed by the upper body of rod 241 and the lower body of rod 242, and the upper body of rod is shorter than the lower body of rod。The both ends of described assister bar 25 are respectively hinged on starting bar 24 and first body of rod 22, and the hinged end of assister bar 25 and starting bar 24 is on the end angle of starting bar 24, and the hinged end of assister bar 25 and first body of rod 22 is on the extended line of sliding end of starting bar 24。In the structure shown here, propping up support component during starting and obtain a tripping force by starting power-assisted assembly, the lower body of rod of starting bar 24 is longer and obtains a relatively large staring torque, desktop can be promoted to be prone to starting and rise, the problem solving desktop lifting starting difficulty, and ensure that desktop lifting starting is stable。
Described auxiliary support component includes auxiliary support mobile jib 28 and the secondary bar 29 of auxiliary support, the upper end of auxiliary support mobile jib 28 is slidably arranged in the second slide rail 13 of desktop cover board 1, second slide rail 13 is on the rear end face of desktop cover board 1, and the bottom of auxiliary support mobile jib 28 is hinged on pedestal 21 end；The upper end of the secondary bar 29 of auxiliary support is hinged on desktop cover board 1, and the bottom of the secondary bar 29 of auxiliary support is hinged on the middle part of auxiliary support mobile jib 28, adopts a support component can promote the stability after lifting desk surface launches。
The use step of the lifting desk surface of said structure is as follows: when external handle 341 or electric drive 342 work, the torsion of input makes rotating shaft 31 rotate, so that the draw nut 35 in rotating shaft 31 acts on traction steel wire 33 controls its folding and unfolding, power-assisted assembly and a support component is started, it is achieved lifting by traction steel wire 33。Whole desktop uphill process is divided into two stages, the startup stage that first stage being for opening foot, traction steel wire 33 drives the starting bar 24 started in power-assisted assembly, and promote starting bar 24 to strut, and strutting a support component by a small margin, the lower body of rod of starting bar 24 is longer and obtains a relatively large staring torque, desktop can be promoted to be prone to starting and rise, until when starting bar 24 completely disengages from pedestal 21, the first stage terminates。Second stage starts therewith, and starting bar 24 goes up to the air completely, does not produce to rise power-assisted；Under traction steel wire 33 pulls on, starting power-assisted assembly and fully open, thus pull strength being transferred to a support component, so that a support component starts to open, rising to top until rising。Summary process, adopts external handle 341 to drive traction element in this lifting desk surface, traction element drives a support component by traction steel wire 33, thus finally realizing desktop lifting；Compared to existing machine driving lifting desk surface, this lifting desk surface has not only simplified internal structure so as to cost alleviates, conducting oneself with dignity lightens, and eliminates gear-driven mechanical loss, thus reducing required driving force and produced drive noise。