CN103225732A - Cam-free reed-winding tension spring type support with hydraulic buffer - Google Patents
Cam-free reed-winding tension spring type support with hydraulic buffer Download PDFInfo
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- CN103225732A CN103225732A CN2013101685270A CN201310168527A CN103225732A CN 103225732 A CN103225732 A CN 103225732A CN 2013101685270 A CN2013101685270 A CN 2013101685270A CN 201310168527 A CN201310168527 A CN 201310168527A CN 103225732 A CN103225732 A CN 103225732A
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Abstract
The invention discloses a cam-free reed-winding tension spring type support with hydraulic buffers and relates to a frame type display screen support. The support provided by the invention comprises a fixing frame, a rotating shaft, stand bars, a winding sleeve sleeved on the rotating shaft, a rotating angle range limiting structure, windable thin reeds, tension springs and changeover mechanisms, and is characterized in that the winding sleeve and the rotating shaft are connected to be a synchronous rotating body to omit an initial sliding cam sleeve, and accordingly a convex-concave molded surface on the shaft end surface is also omitted; and the hydraulic buffers are additionally arranged. The support provided by the invention simplifies the structure in the prior art; the defects that impact and noise are generated due to high-speed release of the winding sleeve, caused by two convex-concave molded surface structures, are eradicated thoroughly; the hydraulic buffers are originally introduced; and other defects that the service life is seriously affected and larger noise is caused due to high-speed rebound impact caused by no-load of the stand bars in the prior art are overcome, so that the service life is greatly prolonged and the operation feeling is good.
Description
Technical field
The present invention relates to a kind of liquid crystal display panel and (contain the integrated machine liquid crystal display panel, LCD monitors, or independent liquid crystal display panel are for for simplicity, each document of the present invention all is called for short display screen) use supporting frame, what be specifically related to is to be the photo frame type display screen supporting frame in equilibrant source with the extension spring.
Background technique
Generally need lay when display screen uses and support and regulate the visual angle by the supporting frame on it, therefore supporting frame is the important conjunction and the matching parts of display screen interwoveness, reasonably support frame structure can provide a better more comfortable service condition to the user, make the operation of display screen can more ideally meet the requirement of ergonomics, while is minification to greatest extent, save desk-top space, quick detachable, be convenient to packing and carrying etc.
The display screen supporting frame is except that a big class supporting frame class of the vertical support of table top, and another big class display screen is directly tiltedly to be placed on the table top to use, and promptly adopts so-called photo frame type supporting way; Be that supporting frame is installed in the display screen back side, display floater and being arranged on the display screen back side before its leg pivot axis level and the parallel and display screen.When display screen was regulated the angle of inclination, the leg lower edge then can be along sliding on the desktop, and form triangular support jointly with computer lower edge (also can increase in the lower edge attaching and use spike); Leg has an initial support position, and leg generally needs omnidistance angular turn to support, simultaneously when need not or during packed and transported leg can be retracted to around the shaft again in the screen back of the body with the minimizing volume.Because display screen all has certain weight, also to add hand touch screen power, therefore the mechanism of supporting frame inside also want to realize display screen each position, angle of inclination leg of desktop can both balance, opposing lives the bigger weight component of display device and making a concerted effort of touch screen power and stablizes motionlessly, promptly do not topple over automatically, lodge.
For realizing above-mentioned these functions, prior art has a kind of with the photo frame type supporting frame of extension spring as main equilibrant, see number of patent application---reed coiling tension spring type supporting frame 201220337454.4, its main structure is referring to its application documents and Fig. 1, its main contents be comprise fixed frame, rotating shaft, leg, in order to extension spring of the main weight component of balance display screen etc.; Be provided with the vertical middle standing pillar of an above-below direction in the middle of the described fixed frame; Between described fixed frame left and right sides housing and the vertical middle standing pillar a described rotating shaft is housed respectively coaxially respectively, nestle up the initial cam sleeve that skids that is set with the coiling sleeve that can circumferentially rotate and circumferentially connects firmly in the described rotating shaft respectively, and both near all corresponding, the reciprocal adaptive cam type surface of convex-concave of an end axial end along being provided with; The other end of described coiling sleeve is then with described fixed frame or connect firmly that it together is equipped with corresponding, adaptive angle range limit structure near this end at the spacing lining of the corner on the described fixed frame; Thin reed one end of can reeling is installed on the described coiling sleeve, and the other end then goes to connect the movable end (thereby the described thin reed of reeling can be to paste the superimposed sheet that is combined into one more than a slice mutually to use and the one end together is packed on the described coiling sleeve) of described relatively fixed frame in the described extension spring two ends through changeover mechanism.
Along continuous straight runs is provided with and the coaxial rotating shaft axis hole of fixed frame left and right side housing rotating shaft axis hole on the described vertical middle standing pillar; Be provided with the rotating shaft lining in the described vertical middle standing pillar rotating shaft axis hole.Described angle range limit structure is to be fixed with the spacing lining of corner in the rotating shaft axis hole on fixed frame left and right side housing, and the spacing lining of described corner its do not have cam end with the coiling sleeve and be equipped with corresponding, adaptive, reciprocal, the block that can embed mutually, protrude vertically or recessed notch by side mutually (the circumferential lengths Ying Heng of described recessed corner spacing edge-cut is greater than the circumferential lengths of suitable, the protruding block that advances; Its greater than circumferential lengths and the minimum of the coiling sleeve of required control to open corner corresponding to the angular range of the initial corner that skids); Described reciprocal two adaptive cam type surfaces are corresponding and adaptive with the initial corner angle of skidding of the described coiling sleeve of required control.For reducing wear, about the hole of described rotating shaft lining in the hole of two described rotating shafts by the spacing rotating shaft lining of described corner and vertical the above rotating shaft axis hole of middle standing pillar supported (described rotating shaft axis hole or described rotating shaft bush hole it on the common hole that be the two described rotating shafts adorned of described vertical middle standing pillar on it).Two rotating shafts pass behind the described fixed frame housing that to stride the endoporus of U-shaped leg two frame bars terminations of described fixed frame left and right sides housing suitable and circumferentially connect firmly with uncovered bag about described, its outer shaft part that stretches out is respectively installed with a plurality of cam elastic compression pads, and in the outermost end of the described rotating shaft in the left and right sides locking nut is housed respectively.
Thereby described changeover mechanism forms the swinging back that is connected, the left and right sides by an end of preventing the local derviation slide block and the shared bearing pin of pinboard one end to be formed jointly; The other end of described anti-local derviation slide block is connected with the described thin reed upper end of reeling, and the other end of described pinboard then connects the movable end of described extension spring.
Described extension spring relatively not the moved end earlier connect piece one end and be connected (also can directly be connected) with described fixed frame with extension spring accent power, then extension spring is transferred the power screw except that its screw on the shoulders portion stay retaining outside all the other screw rod wore and be screwed into described extension spring accent power behind the vertical unthreaded hole set on the described fixed frame crossbeam of display device and connect the piece the other end.Described extension spring can a plurality ofly be installed and used side by side.
But the shortcoming of above-mentioned prior art maximum is: since the coiling sleeve with initial skid cam sleeve near an end all be circumferentially with corresponding, the reciprocal adaptive cam type surface of convex-concave along axial end; When leg turns to several angle, rotating shaft drives concavo-convex on the initial coiling sleeve that skids cam sleeve and be engaged with by this cam driven and takes turns rotation together, but when turning to several angle, because of pulling at commentaries on classics coiling sleeve by the thin reed of can reeling, extension spring power makes two by trackslipping until mutual disengaging engagement greater than this impacting force is relative that the impacting forces of the generation of the resilient pad in the rotating shaft are meshed with concavo-convex coiling sleeve of taking turns and the initial cam sleeve generation of skidding, the impacting force that also promptly compresses by resilient pad in the rotating shaft between the two and produce is not enough to keep the concavo-convex continuation engagement of two engagements, will be forced to spin friction and skid off with concavo-convex wheel of the concavo-convex tube coiling sleeve of taking turns mutually extruding of the initial cam that skids, and in case skid off the coiling sleeve and rotate rapidly because of engagement no longer disappears load immediately, thereby the initial position limit structure on it can produce the fierce impact to block that protrudes vertically on the spacing lining of the corner that installs in the fixed frame axis hole or recessed notch, influence the life-span and send stronger impact noise, influence is used.
In addition, when if accident artificially allows leg and desktop disengage suddenly when leg is big at the angle of inclination (as the unexpected overturning of display screen etc.), therefore extension spring 14 has been in big strength tension the time, now lose the resistivity of display screen gravity and release rapidly suddenly, spring force can oppositely drive the leg high speed rotary, produces impact, might hurt sb.'s feelings or damage display screen, also produce very big noise simultaneously, therefore, fail to desirable operating environment of operator.
Summary of the invention
In order to overcome the defective that prior art exists, the present invention on the prior art basis by the coiling sleeve is directly become synchronous rotor with the rotating shaft load, cancels the initial cam sleeve that skids, this corrective measure such as concavo-convex wheel construction to being meshed of corresponding cancellation, introduce in related domain first simultaneously and adopted hydraulic bjuffer, thereby a kind of do not have the band hydraulic bjuffer of above-mentioned defective, no cam type reed coiling tension spring type supporting frame are provided, for the user provides a more desirable use operating environment.
The present invention adopts following technical proposals to realize:
The band hydraulic bjuffer does not have cam type reed coiling tension spring type supporting frame, comprise fixed frame, horizontal pivot be located at rotating shaft in the fixed frame pivoting hole, with the leg of rotating shaft rotation synchronously, be sleeved on coiling sleeve, the angle range limit structure that is used to set leg initial position angle in the rotating shaft, an end is connected and is wound on reel thin reed, extension spring, changeover mechanism on the coiling sleeve; It is characterized in that: described coiling sleeve becomes synchronous rotor with the rotating shaft load, cancels the initial cam sleeve that skids, the convex-concave profile on the corresponding adaptive place axial end with the described initial cam sleeve that skids of the also corresponding cancellation of described coiling sleeve.
Further:
The axis hole of described coiling sleeve and described rotating shaft section adopt suitable non-circular shape load, perhaps in described coiling sleeve and described rotating shaft, both suitable, radially corresponding pin holes are set and in pin hole, plug adaptive pin or the riveted joint rivet comes load, adaptive key or spline and keyway or spline load perhaps are set, so that the load of coiling sleeve and rotating shaft realizes synchronous unitary rotation in described coiling sleeve and described rotating shaft.
The described coiling sleeve two ends of suit do not recline to be provided with radially pin hole on the described rotating shaft position in the end outside of described fixed frame and to penetrate and install adaptive pin or rivet or insert screw and lock with nut being arranged in the described rotating shaft, the circlip annular groove perhaps is set on the ring side face of described position and suitable circlip is housed, screw thread perhaps is set on described surface of position and locks adaptive nut, tapped hole and adaptive screw perhaps are set on described position to lock, it is suitable that both perhaps are set in described coiling sleeve and described rotating shaft, radially Dui Ying pin hole and plugging in pin hole installs adaptive pin or riveted joint rivet or screw so that described coiling sleeve in described rotating shaft by axial limiting, stop.
Described no cam type reed coiling tension spring type supporting frame also comprises at least one hydraulic bjuffer, the piston rod that it comprises a frame and axially stretches out described frame; Described frame and described piston rod alternatively person's a end is conflicted with described fixed support or is connected, and both ends through selecting a remaining person are conflicted mutually with described changeover mechanism or are connected; Form and when described changeover mechanism is spurred return at a high speed by described extension spring, reduce its striking velocity.
Described no cam type reed coiling tension spring type supporting frame also comprises a changeover mechanism cross connecting plate, about it two positions respectively with left and right two described changeover mechanisms in anti-local derviation slide block be connected mutually, then conflict with described frame and described piston rod alternatively person's a end or be connected in the intermediate portion, both ends through selecting a remaining person are conflicted with described fixed support or are connected.
Described no cam type reed coiling tension spring type supporting frame also comprises an adapter coupling, and described piston rod is away from the affixed described adapter coupling of an end of described frame and by the affixed described changeover mechanism cross connecting plate of described adapter coupling.
Be provided with a chamber of opening again that holds the described frame of hydraulic bjuffer in the described fixed support, described frame is set up within it.
Described frame has a micro-boss described fixed support that is used to conflict away from end axial end central authorities of described piston rod, to improve described hydraulic bjuffer force-bearing situation.
The recline axial end of described pin of described coiling sleeve is provided with a depressed part and contains described pin and it is not dropped or make described rotating shaft simultaneously and described coiling sleeve unitary rotation.
Description of drawings
Fig. 1 is and the immediate prior art constructions schematic representation of the present invention.
Fig. 2 is a structural representation of the present invention.
1. fixed frames among the figure, 2. rotating shaft, 3 coiling sleeves, the thin reed of 4. can reeling, 5. leg, 6. vertical middle standing pillar, 7. rotating shaft axis hole, 8. rotating shaft lining, the 9. initial spacing lining of cam sleeve 10. corners that skids, 11. anti-local derviation slide blocks, 12. pinboard, 13. bearing pins, 14. extension springs, 15. extension spring accent power connects piece, power screw, 17. vertical unthreaded holes are transferred in 16. extension springs, 18. plastics anti-attrition guide sleeve, 21. mounting holes, 22. elongated roller bearings, 23. roll sleeve, 24. elastic compression pads, 25. locking nuts, 26. display screen, 27 hydraulic bjuffers, 28 framies, 29 piston rods, 30 changeover mechanism cross connecting plates, 31 adapter couplings, 32 opening chambers, 33 micro-boss, changeover mechanism 34.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, the invention will be further described below in conjunction with Fig. 2 and concrete preferred embodiment.
Referring to Fig. 2, this preferred embodiment: the band hydraulic bjuffer does not have cam type reed coiling tension spring type supporting frame.It is on aforementioned prior art architecture basics the improvement of small part structure to be formed, for ease of understanding, please be simultaneously referring to Fig. 1 easily to see the similarities and differences with the prior art structure.
Its structure is: connected firmly at display screen 26 back sides by fixed frame 1 usefulness screw of the frame-like structure of light metal casting moulding (preferably adopting aluminum alloy or magnesium alloy die casting) etc.; Establish one in the middle of the fixed frame 1 and (also can on closer distance, establish two, to gain in strength, this example is established one) the vertical middle standing pillar 6 of above-below direction, on vertical middle standing pillar 6 and fixed frame 1 left and right sides housing, be provided with along continuous straight runs, coaxial rotating shaft axis hole 7(diameter, shape can be different); For reducing friction and life-saving, be provided with rotating shaft lining 8 in the vertical middle standing pillar 6 rotating shaft axis holes 7, be provided with the spacing lining 10(of corner in fixed frame 1 left and right sides housing rotating shaft axis hole 7 and can play the effect of rotating shaft axis hole, take into account simultaneously and realize the angle range limit structure); Both preferably are cast as one in the lump as inserter and fixed frame 1 need to be packed in the spacing lining 10 of corner on the fixed support 1 and rotating shaft lining 8, also can adopt known mechanical structure to fix certainly.
Two (obviously, the also correspondingly many covers of correspondingly follow-up a series of of being attached thereto) are used in rotating shaft 2 in this example; Level, left and right symmetrically are hubbed in the spacing bush hole 10 of corner and rotating shaft lining 8 holes in the vertical middle standing pillar 6 of correspondence on fixed frame 1 left and right sides housing respectively, wherein because of the vertical middle standing pillar 6 of this example is one, so rotating shaft lining 8 holes on it are the common hole of two rotating shafts 2.
Be set with coiling sleeve 3 respectively in two rotating shafts 2, what attention was different with existing technology especially is: coiling sleeve 3 becomes synchronous rotor with rotating shaft 2 loads, for this reason, can adopt mechanical connection to become numerous known technologies of synchronous rotor, such as: the axis hole of described coiling sleeve 3 and described rotating shaft 2 sections adopt suitable non-circular shape suit load, it is suitable that both perhaps are set in described coiling sleeve 3 and described rotating shaft 2, Dui Ying pin hole and in pin hole, plug adaptive pin or rivet comes load radially, adaptive key (or spline) and keyway (or spline) load perhaps are set in described coiling sleeve 3 and described rotating shaft 2, or the like; So that both loads of coiling sleeve 3 and rotating shaft 2 realize synchronous unitary rotation, first kind of adaptive non-circular shape mode of this example employing realizes.
The initial cam sleeve 9(that skids that the cancellation prior art adopts is referring to Fig. 1), the convex-concave profile (being a pair of concavo-convex the wheel) on the corresponding adaptive place axial end of coiling sleeve 3 described in the also corresponding cancellation prior art with the described initial cam sleeve 9 of skidding.Coiling sleeve 3 near on the axial end of an end of fixed frame 1 left and right sides housings with the spacing lining 10 of corner be provided with jointly adaptive mutually angle range limit structure (though with the prior art structural similarity, be mainly used in and limit leg 5 initial support angles and the rotating scope angle of maximum can optionally be limited or not limit.), this structure is very simple, the spacing technology of known angle range that can adopt multiple related domain usually to use, as: both are arranged to corresponding, reciprocal adaptive, the block that can embed mutually, protrude vertically or the structures such as notch of depression respectively; For another example: both form the concavo-convex (different fully with the aforesaid concavo-convex purpose of reaching of taking turns of correspondence respectively with the form of pad or wheel on mutual surface of contact, here just for determining leg 5 initial positions), for the sake of simplicity, this example selects coiling sleeve 2 axial end to be arranged to notch, and corresponding spacing lining 10 corresponding positions of corner are arranged to the axial projection block.In addition, for improving technology capability, this routine described coiling sleeve 3 and/or the spacing lining 10 of corner and/or rotating shaft lining 8 adopt ferrous based powder metallurgical technology direct forming.
About two rotating shafts 2 continue across the endoporus of striding 5 liang of frame bars terminations of left and right sides leg of fixed frame 1 left and right sides housing by U-shaped open-mouth bag in the U-shaped leg 5 after passing fixed frame 1 left and right sides housing, and adopt with this left and right sides endoporus that non-circular suit is adaptive to form synchronous rotor, rotating shaft 2 continues outwardly directed left and right sides shaft part and is set with a plurality of elastic compression pad 24(by related domain known technology commonly used and also can comprises multiple pads such as anti-attrition flat gasket) and be contained in the locking nut 25 of rotating shaft 2 outermost end, by each pad 24 on the mutual clamping shaft 2 of axial elasticity, coiling sleeve 3, the spacing lining 10 of corner and also have leg 5 described later comes secondary spring power to come the balance screen heavy and make support more stable with the frictional force that produces suitable size; But for realizing this purpose, coiling sleeve 3 need make it not move to the direction away from the spacing lining 10 of corner by phase countershaft 2 by axial limiting in rotating shaft 2 at least; Thereby when nut 25 lockings, will axially spur coiling sleeve 3, make coiling sleeve 3, each pad 24, the spacing lining 10 of corner, also have leg 5 described later to be compressed mutually, produce the axial elasticity impacting force, and then produce needed, that a certain size frictional force supports leg is more stable, also reduces the load of extension spring 14 simultaneously.For satisfying the axial limiting requirement of this coiling sleeve 3 in rotating shaft 2, can adopt various known axial limiting technology, as: coiling sleeve 3 two ends that are arranged in institute's suit in the described rotating shaft 2 do not recline as described in fixed frame 1(refer to the spacing lining of corner 10 places) the end outside as described on rotating shaft 2 positions, pin hole is set radially and penetrates and install adaptive pin (or rivet) (or insert screw and lock) with nut, the circlip annular groove perhaps is set on the ring side face of described position and suitable circlip is housed, collar etc., screw thread perhaps is set on described surface of position and locks adaptive nut, tapped hole and adaptive screw perhaps are set on described position to lock, it is suitable that both perhaps are set in described coiling sleeve 3 and described rotating shaft 2, Dui Ying pin hole and in pin hole, plug and install adaptive pin (or rivet or screw) radially, or the like, this example for the sake of simplicity, adopt first kind establish in the rotating shaft 2 pin hole distribution nail mode realize described coiling sleeve 3 in described rotating shaft 2 required axially by axial limiting, stop.Simultaneously, for described pin is not dropped from pin hole, remove and to adopt gluing also can on described coiling sleeve 3 reclines the axial end of described pin, be provided with a depressed part that contains described pin, as long as allow pin whole (comprising two ends) a little be in this depression, pin will be blocked by the ring week of depressed part and can not drop owing to two ends; This routine described depressed part is a diameter greater than pin length, very shallow heavy circular hole, certainly, also can be arranged on the described depressed part basis, continue the axially darker short groove shape local dent (promptly being the draw-in groove shape) that is at the diameter range that is slightly less than pin length and contain the pin that removes two ends, realize making described rotating shaft 2 to rotate (promptly having saved aforesaid for realizing the linkage structure of synchronous rotor) synchronously with described coiling sleeve 3 one so incidentally, pin can not deviate to drop again simultaneously.
Thin reed 4 one ends of can reeling are packed on the coiling sleeve 3, install and to use known several different methods, be fixed on the coiling sleeve 3 as pin (and/or rivet and/or screw) (and/or the coiling sleeve surface forms the protruding structure in hole on the thin reed 4 of adaptive coiling) etc.; This example has adopted the powder metallurgy shaping because of coiling sleeve 3, so adopt two protruding structures in two holes on the thin reed 4 of the adaptive coiling of coiling sleeve 3 outer surface direct forming to connect firmly; Be to improve the life-span, the thin reed 4 of can reeling should select elasticity good, can reel, can be used to make the stalloy of spring, and it can be operated in the elasticity permission bending deflection scope of material during bending deflection when being reeled by coiling sleeve 3; In addition for improving the life-span, when initial position, the thin reed 4 of can reeling preferably is wound on coiling sleeve 3 last branches in advance at the length section place, two fixed hole positions that has of himself, so that it is coated because of continuing to reel when work, this stressed position section bad, weak (because of having two fixed holes) of also promptly having avoided self is coated on not have on the coiling sleeve all the time stretches working state, also promptly can not be in and stretch the active section of the alternating bending of coiling again; Be further improvement the flexible with life-saving of thin reed 4 of can reeling, the thin reed 4 of can reeling can be a slice or two and above compound " a slice " that is overlapped into one and constitutes that paste mutually; This example adopts 3 and builds up.For ease of being connected of can reel thin reed 4 and extension spring 14, the other end of the thin reed 4 of can reeling i.e. upper end elder generation and then is connected with the movable end of extension spring 14 by the other end of changeover mechanism 34 by being connected with changeover mechanism 34 1 ends.
These routine changeover mechanism 34 structures adopt by pinboard 12 1 ends and guiding prevents forming jointly after the shared bearing pin 13 of an end of inclined to one side slide block 11 forms being connected of can swinging, because of both can laterally swing relatively around bearing pin 13, can significantly reduce because of multiple reason the thin reed 4 of can reeling drawn tendency partially, to prolong the life-span of the thin reed 4 of can reeling, particularly effect can be more obvious when adopting following a plurality of extension spring 14 to install and use side by side; The other end of the anti-local derviation slide block 11 in the changeover mechanism 34 behind both compositions is connected with thin reed 4 upper end of can reeling, the multiple techniques well known structures such as projection that connect hole on the adaptive thin reed 4 of reeling of available pin and/or rivet and/or screw and/or the 11 surface formation of anti-local derviation slide block connect, this example connects with four screws, and pinboard 12 the other ends then correspondingly connect extension spring 14 movable ends (this example directly with extension spring 14 termination steel wire hooks in pinboard 12 corresponding apertures) for the sake of simplicity.
For the sake of simplicity extension spring 14 relatively not the moved end can directly be connected with fixed frame 1; Promptly directly extension spring 14 steel wires are colluded in fixed frame 1 its corresponding aperture and get final product, but thisly directly link the adjustment that structure is unfavorable for extension spring 14 initial tensile forces, adopt so this example does not adopt this structure with extension spring 14 relatively not the moved end connect piece 15 1 ends with extension spring accent power earlier and be connected (for the sake of simplicity, can directly extension spring 14 termination steel wires be linked in its corresponding aperture and get final product), then extension spring is transferred power screw 16 except that its screw on the shoulders portion stay retaining on fixed frame 1 crossbeam, all the other screw rod were worn and are screwed into extension spring accent power behind the vertical unthreaded hole 17 set on fixed frame 1 crossbeam and connect piece 15 the other ends, transferred power screw 16 to be screwed into the initial installation pulling force size of extension spring accent power each extension spring 14 of can regulate when connecing the degree of depth of piece 15 when regulating extension spring.
For further reducing spring diameter, described extension spring 14 can a plurality ofly be installed and used side by side, and each extension spring 14 diameter can be littler like this, is beneficial to the realization of ultra-thin machine; This example has used two to install side by side, and two rotating shafts 2 are shared four; For the purpose of simply and mutually not disturbing, on each extension spring 14 two ends all directly links side by side separately in each self-corresponding hole of the part that links to each other up and down, notice that each cluster spring pulling force should be identical as far as possible, even, otherwise than a single extension spring 14 easier formation drawing partially the thin reed 4 of can reeling; Regulating extension spring transfers power screw 16 to be screwed into the degree of depth that extension spring accent power connects piece 15 can to finely tune initial installation pulling force size, notice that total pulling force sum of each extension spring 14 should be able to satisfy the main weight component needs of balance, opposing display screen 26.
For reducing wear and surface friction drag, described anti-local derviation slide block 11 can be fixed with plastics anti-attrition guide sleeve 18, and is suitable by the chute of the guiding usefulness on plastics anti-attrition guide sleeve 18 and the fixed support 1 when moving up and down; As for the structure shape of cover and install simply, notice that mainly surface that its left and right sides contact with fixed support 1 upper hopper chute is only the working surface of forcing to prevent inclined to one side and slide-and-guide and gets final product available known structure.The material of plastics anti-attrition guide sleeve 18 has the higher relatively plastics of certain self lubricity, intensity hardness for well with polyoxymethylene or nylon etc.
These routine leg 5 overall structure shapes are made U-shaped (obviously also can adopt other analogous shape); The position with holes, two frame bars terminations of the open state that takes the shape of the letter U on the leg 5 occupy fixed frame about 1 outer side frame external positions respectively, and (obviously 5 liang of frame bars terminations of leg also can change into and occupy other position in the rotating shaft 2 respectively, but this example does not adopt), and adopt adaptive non-circular shape suit to cooperate and constitute synchronous rotor with rotating shaft 2 shaft parts outside stretching out fixed frame 1 left and right sides housing respectively.The crossbeam place left and right horizontal direction of supporting tables such as the close desktop in leg 5 bottoms respectively is provided with elongated roller bearing 22 is housed in a mounting hole 21, two mounting holes 21; Can coat or suit roll sleeve 23 on the elongated roller bearing 22; This routine suit roll sleeve 23, material is rubber or plastics; The known technology structures such as location employing circlip of elongated roller bearing 22 after two mounting holes 21 are installed gets final product.
This routine leg 5 can increase the angle of inclination upwards upset be in same plane until leg 5 and fixed frame 1, this position can be established the spacing simple structure of corresponding leg 5 folding and unfolding grooves by display screen 26 back sides and be got final product.
During use, the display screen of erectting 26 is tiltedly put, when the leg 5 relative fixed frameworks 1 at the pulling back side begin to increase angle of inclination (correspondingly roll sleeve 23 contacts on the leg 5 elongated roller bearing 22 below it and roll or slide along desktop) from initial spacing tilt angle, it also is leg 5 around the shaft 2 and turn to corresponding equal angular synchronously with rotating shaft 2 one, the rotation of rotating shaft 2 then drives and becomes the coiling sleeve 3 of synchronous rotor together to rotate identical gyration with its load, and the related coiling sleeve 3 thin reed 4 of reeling on it corresponding segment length of reeling, and then by this reed pulled straight changeover mechanism 34, thereby again so pulled straight extension spring 14 movable ends pass to the spring stretching counter-force that the very big balance of leg 5 is offset display screen 26 deadweight component.Make leg 5 at an arbitrary position balanced support live display screen 26.
This wherein, the guiding groove that the changeover mechanism 34 that is pulled will be fixed when doing vertical lines and move on the support 1 forces to align, rectify a deviation, and is equipped with the generation to the unfavorable situations such as drawing partially, tiltedly draw of the thin reed 4 of can reeling that easily produces when deviation is particularly installed a plurality of extension spring 14 side by side thereby reduced the associated part installation position; As still have some to draw partially, in the changeover mechanism 34 about anti-local derviation slide block 11 and connecting plate 12 both also can do rotation about a little and alleviate to the drawing partially of reed, to prolong the reed life-span around bearing pin 13.
Obviously, the present invention is because of the concavo-convex wheel construction of having cancelled retracting spring power and cancelled the initial cam sleeve 9 that skids, simplified prior art constructions, and being fixed with one after the initial cam sleeve 9 that skids that rotates relies on the concavo-convex wheel construction of its axial end to order about coiling sleeve 3 to turn to the several angle scope because of two concavo-convex that take turns that the profile structure causes and rotating shafts of making that prior art exists, the concavo-convex wheel of leaning on mutually axially forced to separate, and makes to be in that unresisted coiling sleeve 3 is stretched that spring 14 drives this moment and high speed rotary discharges and produce and impact and the defective of noise is able to thorough elimination.
Even but like this, described in the previous technique background, prior art also has a following problem: when leg 5 at the angle of inclination during bigger support, when if suddenly accident artificially allows leg 5 and desktop disengage (play move back and forth or display screen 26 unexpected overturnings etc.) as children, therefore extension spring 14 has been in big strength tension the time, now lose the resistivity of display screen 26 gravity suddenly and zero load, spring force can oppositely drive leg 5 high speed rotaries and discharge rapidly, produce and impact, might hurt sb.'s feelings or damage display screen 26, also produce very big noise simultaneously; For this reason, also needing further to improve, specifically is to adorn a hydraulic bjuffer 27 in fixed support, the piston rod 29 that it comprises a frame 28 and axially stretches out described frame 28; Described frame 28 and described piston rod 29 alternatively persons' a end is conflicted with described fixed support 1 or is connected, and both ends through selecting a remaining person are conflicted mutually with described changeover mechanism 34 or are connected; Be connected on the changeover mechanism 34 for ease of conflict, can install a changeover mechanism cross connecting plate 30 additional, about it two positions respectively with a left side, anti-local derviation slide block 11 in right two described changeover mechanisms 34 is connected mutually, then conflict with described frame 28 and described piston rod 29 alternatively persons' a end or be connected in the intermediate portion, both ends through selecting a remaining person are conflicted with described fixed support 1 or are connected, connect for being more convenient for, described piston rod 29 away from the affixed adapter coupling 31 of an end of described frame 28 and by two positions about described changeover mechanism 34 cross connecting plates of the affixed more described changeover mechanism 34 cross connecting plate 30(of described adapter coupling 31 respectively with changeover mechanism 34 on anti-local derviation slide block 11 conflict or be connected), then conflict or be fixed on the fixed support 1 in frame 28 terminations; Above-mentioned relevant connection all can be adopted interconnection technique structure well known in the art.Is technique known as for hydraulic bjuffer 27 in automatic field, and the market model specification of raising variety much can directly be chosen, and has belonged to general part, so the concrete structure principle of its buffering has not just been given unnecessary details here.Both (or being connected) hydraulic bjuffers 27 of conflicting are respectively reduced by speed of related movement both greatly by the standing part in supporting frame and at a high speed bounce-back part, have avoided impact.
For ease of fixed hydraulic buffer 27, be provided with an opening chamber 32 that holds hydraulic bjuffer 27 described framies 28 in the described fixed support, described frame 28 is set up within it, in case it deviates from fixed support 1 when variations such as complete machine inclined position.
Above-mentioned hydraulic bjuffer 27 framies 28 have a little outstanding getting final product of a micro-boss 33(away from end axial end central authorities of described piston rod 29) be used for by this micro-boss described fixed support of conflicting, to improve described hydraulic bjuffer 27 force-bearing situations, make when the power that is subjected to of buffering and can pass through the hydraulic bjuffer near axis as far as possible, in case possible oil impregnate during bias voltage hydraulic bjuffer 27.
Obviously, this supporting frame, also leg 5 can being designed to downwards, upset is received in display screen 26 back sides, because of upwards still taking in leg 5 downwards is a kind of relative motion, said structure only needs corresponding a small amount of simple adjustment to get final product, this is very simple as those skilled in the art, has not just given unnecessary details here
The embodiment of other locally variableization:
Obvious above-mentioned preferred embodiment part changes a little can obtain flexible structure.Because of mostly being simple technique well known in the art, too obviously, simple, the very easy realization of those skilled in the art, thus only simply introduce several structures here, and only mention the main points of relevant difference and do not given unnecessary details:
This example of angle range limit structure is simple block that protrudes or recessed notch, the similar structure that plays initial angle range position-limiting action is obviously much also very simple, can make a lot of variants by technology well known in the art, such as the pin that is equivalent to protruding block with, the employing window shape notch of another correspondence etc., its similar block and notch are as long as effect quite all can;
Wear-resisting etc. as not considering, certainly also can not adorn the spacing lining 10 of rotating shaft lining 8 or corner in the rotating shaft axis hole 7 on vertical middle standing pillar 6, the fixed frame 1 left and right side housing, certainly, need the initial corner limit structure (as block, notch structure) that substitutes the spacing lining 10 of corner is set on fixed frame 1 aperture end face, cooperate coiling sleeve 3 distolateral block, notch structure again; The initial corner limit structure function that also is the spacing lining 10 of corner also can be by being provided with limit structure at fixed frame 1, cooperates coiling sleeve 3 distolateral block, notch structures to realize again and substitute.
But obviously, also can adopt the gasket unit of the usual band convex-concave of using in related domain or the initial position fix (being commonly called as " crossing point ") that the convex-concave wheel is realized leg, this is particularly suitable for the leg 5 descending structures that are received in display screen 26 back;
Leg 5 still be a U-shaped substantially, also other analogous shape can be arranged, and its uncovered portion also can be placed on fixed frame 1 inside, and the position that each assembling set in certain rotating shaft 2 is laid adjusts accordingly;
Also can adopt a rotating shaft 2, then structure is close with preference substantially, and other part is done corresponding additions and deletions adjustment and got final product;
Obviously, in the photo frame type supporting frame, adopt in the more simple torsion spring class formation, hydraulic bjuffer also is installed is overcome the high speed of the leg when unloaded defective that recoils equally.
The present invention is by simplifying prior art constructions, what make that prior art exists two concavo-convexly takes turns coiling sleeve speed no-load and high that the profile structure causes and discharges to produce and impact and the defective of noise is eradicated, also introduce the hydraulic bjuffer structure simultaneously originally first in related domain, the high speed impact that can produce when the prior art leg is unloaded suddenly, the defective that influences life-span and the very big noise of generation have been overcome, for the user provides a better Environmental Conditions, meet the ergonomics requirement more, and structure is simpler, prolong working life greatly, and operation feeling is better.
More than show and described basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (9)
1. the band hydraulic bjuffer does not have cam type reed coiling tension spring type supporting frame, comprise fixed frame, horizontal pivot be located at rotating shaft in the fixed frame pivoting hole, with the leg of rotating shaft rotation synchronously, be sleeved on coiling sleeve, the angle range limit structure that is used to set leg initial position angle in the rotating shaft, an end is connected and is wound on reel thin reed, extension spring, changeover mechanism on the coiling sleeve; It is characterized in that: described coiling sleeve becomes synchronous rotor with the rotating shaft load, cancels the initial cam sleeve that skids, the convex-concave profile on the corresponding adaptive place axial end with the described initial cam sleeve that skids of the also corresponding cancellation of described coiling sleeve.
2. band hydraulic bjuffer according to claim 1 does not have cam type reed coiling tension spring type supporting frame, it is characterized in that: the axis hole of described coiling sleeve and described rotating shaft section adopt suitable non-circular shape load, it is suitable that both perhaps are set in described coiling sleeve and described rotating shaft, radially Dui Ying pin hole and in pin hole, plug adaptive pin or the riveted joint rivet come load, adaptive key or spline and keyway or spline load perhaps are set, so that the load of coiling sleeve and rotating shaft realizes synchronous unitary rotation in described coiling sleeve and described rotating shaft.
3. band hydraulic bjuffer according to claim 1 and 2 does not have cam type reed coiling tension spring type supporting frame, it is characterized in that: the described coiling sleeve two ends of suit do not recline to be provided with radially pin hole on the described rotating shaft position in the end outside of described fixed frame and to penetrate and install adaptive pin or rivet or insert screw and lock with nut being arranged in the described rotating shaft, the circlip annular groove perhaps is set on the ring side face of described position and suitable circlip is housed, screw thread perhaps is set on described surface of position and locks adaptive nut, tapped hole and adaptive screw perhaps are set on described position to lock, it is suitable that both perhaps are set in described coiling sleeve and described rotating shaft, radially Dui Ying pin hole and plugging in pin hole installs adaptive pin or riveted joint rivet or screw so that described coiling sleeve in described rotating shaft by axial limiting, stop.
4. band hydraulic bjuffer according to claim 1 does not have cam type reed coiling tension spring type supporting frame, it is characterized in that: also comprise at least one hydraulic bjuffer, the piston rod that it comprises a frame and axially stretches out described frame; Described frame and described piston rod alternatively person's a end is conflicted with described fixed support or is connected, and both ends through selecting a remaining person are conflicted mutually with described changeover mechanism or are connected; Form and when described changeover mechanism is spurred return at a high speed by described extension spring, reduce its striking velocity.
5. band hydraulic bjuffer according to claim 4 does not have cam type reed coiling tension spring type supporting frame, it is characterized in that: also comprise a changeover mechanism cross connecting plate, about it two positions respectively with left and right two described changeover mechanisms in anti-local derviation slide block be connected mutually, then conflict with described frame and described piston rod alternatively person's a end or be connected in the intermediate portion, both ends through selecting a remaining person are conflicted with described fixed support or are connected.
6. band hydraulic bjuffer according to claim 5 does not have cam type reed coiling tension spring type supporting frame, it is characterized in that: also comprise an adapter coupling, described piston rod is away from the affixed described adapter coupling of an end of described frame and by the affixed described changeover mechanism cross connecting plate of described adapter coupling.
7. band hydraulic bjuffer according to claim 4 does not have cam type reed coiling tension spring type supporting frame, it is characterized in that: be provided with an opening chamber that holds the described frame of hydraulic bjuffer in the described fixed support, described frame is set up within it.
8. there is not cam type reed coiling tension spring type supporting frame according to claim 4,5,6 or 7 described band hydraulic bjuffers, it is characterized in that: described frame has a micro-boss described fixed support that is used to conflict away from end axial end central authorities of described piston rod, to improve described hydraulic bjuffer force-bearing situation.
9. band hydraulic bjuffer according to claim 3 does not have cam type reed coiling tension spring type supporting frame, it is characterized in that: the recline axial end of described pin of described coiling sleeve is provided with a depressed part and contains described pin and it is not dropped or make described rotating shaft simultaneously and described coiling sleeve unitary rotation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310168527.0A CN103225732B (en) | 2013-05-08 | 2013-05-08 | Band hydraulic bjuffer is without cam type reed winding tension spring type supporting frame |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310168527.0A CN103225732B (en) | 2013-05-08 | 2013-05-08 | Band hydraulic bjuffer is without cam type reed winding tension spring type supporting frame |
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| CN103225732A true CN103225732A (en) | 2013-07-31 |
| CN103225732B CN103225732B (en) | 2015-11-18 |
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|---|---|
| CN103225732B (en) | 2015-11-18 |
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Effective date of registration: 20171101 Address after: 401520 Chongqing Hechuan South Office Gaoyang Road No. 1497 Patentee after: CHONGQING HAOHE TECHNOLOGY CO., LTD. Address before: 225321 No. 138 East Ping River Road, Taizhou high port district, Jiangsu Patentee before: Taizhou Stronkin Electronic Co., Ltd. |