CN104329010B - An a kind of key stretches curtain unidirectional control device and the curtain thereof of curtain landing - Google Patents
An a kind of key stretches curtain unidirectional control device and the curtain thereof of curtain landing Download PDFInfo
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- CN104329010B CN104329010B CN201410520692.2A CN201410520692A CN104329010B CN 104329010 B CN104329010 B CN 104329010B CN 201410520692 A CN201410520692 A CN 201410520692A CN 104329010 B CN104329010 B CN 104329010B
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Abstract
An a kind of key of disclosure stretches curtain unidirectional control device and the curtain thereof of curtain landing, including limited-slip mechanism and a key drawing mechanism, controller can provide good non-return effect, control curtain to decline because of the action of gravity of self, make the accurate positioning that curtain rises or falls, curtain can stretch landing by a key simultaneously, saves the operation progressively landed, more convenient and quick。
Description
Technical field
The present invention relates to curtain field, be exactly curtain unidirectional control device and the curtain thereof of an a kind of key stretching curtain landing。
Background technology
Curtain is to use a kind of very widely in the curtain world, is generally used for office space relatively more, and in American-European countries, curtain also has and is a lot used in household building thing, and it is well received with brevity and lucidity。Curtain can be divided into horizontal curtain and vertical curtain by mounting means, can be divided into manual and electronic two kinds by control。
In first generation horizontal curtain, when curtain is launched by Non-follow control and the action such as packs up, it is common that by the design rope in end or what curtain was controlled by line。Due to one end suspension that bottom is generally controlled by rope or the line of curtain, and the position of suspension is generally equal with the bottom of curtain, make human or animal can touch rope or the line of curtain comparatively easily, and then there is human or animal and may be restricted or line enwinds and can not shake off, even cause human or animal to be tied tight and the probability of life danger occurs。
In second filial generation horizontal curtain, curtain changes and is operated by rod-type, by the expansion of rotation process bar curtain with the action such as pack up, then by ropewinder rolling and stop curtain to decline, thus avoiding the danger of rope or line。But owing to curtain self exists certain weight, when the dynamics that ropewinder is non-return is inadequate, curtain can decline because of the action of gravity of self, or the location of the rise and fall of curtain is not accurate enough, is further improved。
Summary of the invention
For drawbacks described above, present invention solves the technical problem that the curtain unidirectional control device and curtain thereof that are in that to provide an a kind of key to stretch curtain landing, controller can provide good non-return effect, control curtain to decline because of the action of gravity of self, make the accurate positioning that curtain rises or falls, curtain can stretch landing by a key simultaneously, saves the operation progressively landed, more convenient and quick。
In order to solve above technical problem, a key of the present invention stretches the curtain unidirectional control device of curtain landing, including limited-slip mechanism and a key drawing mechanism, wherein:
Described limited-slip mechanism includes on-slip shell, the first tumbler, the second tumbler, rotation spring and power transmission shaft, wherein:
Described first tumbler axially intersects or interlaced arrangement with described second tumbler, and the gear of described first tumbler and the gear of described second tumbler engage；The top of described first tumbler is bevel gear, and bottom is beam barrel, and described beam barrel is provided with spacing breach；Described rotation spring is torsion spring, and described rotation spring includes turn-knob portion and two contact parts stretched out from described turn-knob portion inward at both ends；The turn-knob portion of described rotation spring is socketed in outside the beam barrel of described first tumbler, and two contact parts of described rotation spring are respectively held against one end of described spacing breach；The top of described power transmission shaft is inserted in the beam barrel of described first tumbler, and the upper periphery of described power transmission shaft is provided with the first projection, and described first projection is stuck between two contact parts of described rotation spring；Described on-slip shell is provided with installation slotted eye, and described first tumbler is arranged in described installation slotted eye, and the periphery, turn-knob portion of described rotation spring is limited in the inner circumferential of described installation slotted eye；
When described power transmission shaft active rotation, its first projection props up a contact part of described rotation spring, have an effect from inside to outside, the turn-knob portion making described rotation spring reduces in circumferential direction, rotation spring rotates, and then drive described first tumbler to rotate, thus described second tumbler is driven to rotate；When described power transmission shaft does not rotate, the turn-knob portion of described rotation spring recovers to amplify in circumferential direction, and then makes the periphery, turn-knob portion of described rotation spring be in limited state；When described first tumbler active rotation, the spacing breach of described first tumbler props up a contact part of described rotation spring, and ecto-entad is had an effect so that the turn-knob portion of described rotation spring amplifies in circumferential direction, and rotation spring cannot rotate；
A described key drawing mechanism includes stretching shell, stretches top, stretches bottom, extension spring and series connection bar, described series connection bar is sequentially connected in series residence from top to bottom and states stretching shell, described extension spring, described stretching top and stretch bottom, and described extension spring, described stretching top and described stretching bottom are limited in described stretching shell；Described stretching enclosure is provided with guide rail at vertical direction, and the bottom on described stretching top is provided with upper gnawing tooth, and the periphery on described stretching top is provided with top gathering sill, and the top gathering sill on described stretching top is spacing on the guide rail of described stretching shell；The upper end of described stretching bottom is provided with lower gnawing tooth, and the periphery of described stretching bottom is provided with bottom gathering sill, and described bottom gathering sill is also spacing on the guide rail of described stretching shell, and described upper gnawing tooth and described lower gnawing tooth engage；
Described series connection bar is connected with the top of described on-slip shell；The bottom of described power transmission shaft is socketed with coil tension spring, and the top and bottom of described coil tension spring are limited。
Preferably, a key stretches the curtain unidirectional control device of curtain landing and also includes quoit, and described quoit is between the inner circumferential of the periphery, turn-knob portion of described rotation spring and described installation slotted eye。
Preferably, the upper periphery of described power transmission shaft is provided with the second projection, and described second projection is arranged on the described first protruding relative periphery。
Preferably, first projection on described power transmission shaft top is stuck in the installation slotted eye of described on-slip shell with the second projection。
Preferably, the bottom of described power transmission shaft is provided with connecting hole, described power transmission shaft by the connecting hole of bottom and connector and the described drive axis of drive force mechanisms be connected。
Preferably, described on-slip shell is divided into the first shell and second housing, described first tumbler, rotation spring and power transmission shaft are arranged in the on-slip shell of described first shell and described second housing composition, and the gear exposed portion of described first tumbler is engaged by described on-slip shell with described second tumbler。
Preferably, one key stretches the curtain unidirectional control device of curtain landing and also includes lock ring, described lock ring is socketed on described power transmission shaft and is stuck on described on-slip shell by the top of described power transmission shaft, the upper end of described coil tension spring is spacing by described lock ring, and the lower end of described coil tension spring is spacing by the inner bottom part of described lower mounting seat。
Preferably, one key stretches the curtain unidirectional control device of curtain landing and also includes mounting seat and lower mounting seat, described upper mounting seat and described lower mounting seat cover in jointly described limited-slip mechanism and a described key drawing mechanism being wrapped in, and the bottom of described power transmission shaft passes from the axis hole of described lower mounting seat。
Preferably, the inside of described stretching shell is relatively set with three guide rails, and described stretching top arranges three top gathering sills, and described stretching bottom is provided with three bottom gathering sills, and the lower gnawing tooth of described stretching bottom is depth grinding tooth。
Additionally, a present invention also a kind of key stretches the curtain of curtain landing, including roller shutter and the controller that described roller shutter is carried out folding and unfolding control, the key that the controller that described roller shutter carries out folding and unfolding control is described stretches the curtain unidirectional control device of curtain landing, a described key stretches the curtain unidirectional control device of curtain landing and includes limited-slip mechanism and a key drawing mechanism, wherein:
Described limited-slip mechanism includes on-slip shell, the first tumbler, the second tumbler, rotation spring and power transmission shaft, wherein:
Described first tumbler axially intersects or interlaced arrangement with described second tumbler, and the gear of described first tumbler and the gear of described second tumbler engage；The top of described first tumbler is bevel gear, and bottom is beam barrel, and described beam barrel is provided with spacing breach；Described rotation spring is torsion spring, and described rotation spring includes turn-knob portion and two contact parts stretched out from described turn-knob portion inward at both ends；The turn-knob portion of described rotation spring is socketed in outside the beam barrel of described first tumbler, and two contact parts of described rotation spring are respectively held against one end of described spacing breach；The top of described power transmission shaft is inserted in the beam barrel of described first tumbler, and the upper periphery of described power transmission shaft is provided with the first projection, and described first projection is stuck between two contact parts of described rotation spring；Described on-slip shell is provided with installation slotted eye, and described first tumbler is arranged in described installation slotted eye, and the periphery, turn-knob portion of described rotation spring is limited in the inner circumferential of described installation slotted eye；
When described power transmission shaft active rotation, its first projection props up a contact part of described rotation spring, have an effect from inside to outside, the turn-knob portion making described rotation spring reduces in circumferential direction, rotation spring rotates, and then drive described first tumbler to rotate, thus described second tumbler is driven to rotate；When described power transmission shaft does not rotate, the turn-knob portion of described rotation spring recovers to amplify in circumferential direction, and then makes the periphery, turn-knob portion of described rotation spring be in limited state；When described first tumbler active rotation, the spacing breach of described first tumbler props up a contact part of described rotation spring, and ecto-entad is had an effect so that the turn-knob portion of described rotation spring amplifies in circumferential direction, and rotation spring cannot rotate；
A described key drawing mechanism includes stretching shell, stretches top, stretches bottom, extension spring and series connection bar, described series connection bar is sequentially connected in series residence from top to bottom and states stretching shell, described extension spring, described stretching top and stretch bottom, and described extension spring, described stretching top and described stretching bottom are limited in described stretching shell；Described stretching enclosure is provided with guide rail at vertical direction, and the bottom on described stretching top is provided with upper gnawing tooth, and the periphery on described stretching top is provided with top gathering sill, and the top gathering sill on described stretching top is spacing on the guide rail of described stretching shell；The upper end of described stretching bottom is provided with lower gnawing tooth, and the periphery of described stretching bottom is provided with bottom gathering sill, and described bottom gathering sill is also spacing on the guide rail of described stretching shell, and described upper gnawing tooth and described lower gnawing tooth engage；
Described series connection bar is connected with the top of described on-slip shell；The bottom of described power transmission shaft is socketed with coil tension spring, and the top and bottom of described coil tension spring are limited。
Preferably, a key stretches the curtain unidirectional control device of curtain landing and also includes quoit, and described quoit is between the inner circumferential of the periphery, turn-knob portion of described rotation spring and described installation slotted eye。
Preferably, the upper periphery of described power transmission shaft is provided with the second projection, and described second projection is arranged on the described first protruding relative periphery。
Preferably, first projection on described power transmission shaft top is stuck in the installation slotted eye of described on-slip shell with the second projection。
Preferably, the bottom of described power transmission shaft is provided with connecting hole, described power transmission shaft by the connecting hole of bottom and connector and the described drive axis of drive force mechanisms be connected。
Preferably, described on-slip shell is divided into the first shell and second housing, described first tumbler, rotation spring and power transmission shaft are arranged in the on-slip shell of described first shell and described second housing composition, and the gear exposed portion of described first tumbler is engaged by described on-slip shell with described second tumbler。
Preferably, one key stretches the curtain unidirectional control device of curtain landing and also includes lock ring, described lock ring is socketed on described power transmission shaft and is stuck on described on-slip shell by the top of described power transmission shaft, the upper end of described coil tension spring is spacing by described lock ring, and the lower end of described coil tension spring is spacing by the inner bottom part of described lower mounting seat。
Preferably, one key stretches the curtain unidirectional control device of curtain landing and also includes mounting seat and lower mounting seat, described upper mounting seat and described lower mounting seat cover in jointly described limited-slip mechanism and a described key drawing mechanism being wrapped in, and the bottom of described power transmission shaft passes from the axis hole of described lower mounting seat。
Preferably, the inside of described stretching shell is relatively set with three guide rails, and described stretching top arranges three top gathering sills, and described stretching bottom is provided with three bottom gathering sills, and the lower gnawing tooth of described stretching bottom is depth grinding tooth。
A key provided by the invention stretches the curtain unidirectional control device of curtain landing, limited-slip mechanism is not when normal power transmission shaft rotates, the periphery, turn-knob portion of rotation spring is limited in the inner circumferential installing slotted eye of on-slip shell, between rotation spring and installation slotted eye, there is relatively larger frictional force, being geo-stationary between rotation spring and installation slotted eye, namely rotation spring will not rotate；When described power transmission shaft active rotation, its first projection props up a contact part of described rotation spring, have an effect from inside to outside, the turn-knob portion making described rotation spring reduces in circumferential direction, rotation spring rotates, and then drive described first tumbler to rotate, thus described second tumbler is driven to rotate；When described power transmission shaft does not rotate, the turn-knob portion of described rotation spring recovers to amplify in circumferential direction, and then makes the periphery, turn-knob portion of described rotation spring be in limited state；When described first tumbler active rotation, the spacing breach of described first tumbler props up a contact part of described rotation spring, and ecto-entad is had an effect so that the turn-knob portion of described rotation spring amplifies in circumferential direction, and rotation spring cannot rotate。
It addition, a key provided by the invention stretches the curtain unidirectional control device of curtain landing, the extension spring of a key drawing mechanism, stretching top and stretching bottom are limited in stretching shell；Stretching enclosure and vertical direction is provided with guide rail, the bottom stretching top is provided with upper gnawing tooth, and the periphery stretching top is provided with top gathering sill, and the top gathering sill stretching top is spacing on the guide rail stretching shell；The upper end stretching bottom is provided with lower gnawing tooth, and the periphery stretching bottom is provided with bottom gathering sill, and bottom gathering sill is also spacing on the guide rail stretching shell, and upper gnawing tooth and lower gnawing tooth engage；Extension spring withstands stretching top from top, and coil tension spring withstands the bottom of on-slip shell from bottom；Under normal circumstances, the gear of the first tumbler and described second tumbler is engagement, and the engaged gears of the first tumbler lives the gear of the second tumbler and by the power transmission of rotation to the second tumbler；When stretching downwards power transmission shaft, on-slip shell is down stretched by power transmission shaft simultaneously, owing to on-slip shell is connected with series connection bar, on-slip shell drives series connection bar also to decline, firmly can not be rotated by internal guide rail is spacing stretching in shell owing to stretching top, can only move up and down, extrusion stretching bottom moves down along guide rail, when stretching bottom and moving down into certain distance, bottom gathering sill getaway spacing, stretching bottom to produce to rotate under upper gnawing tooth and lower gnawing tooth engagement, stretching bottom can rotate；Further, since the lower gnawing tooth stretching bottom is depth grinding tooth, stretching bottom and often rotate once, the depth grinding tooth of lower gnawing tooth will alternately engage with the upper end stretching top。When stretching power transmission shaft first time, if the deep grinding tooth of the lower gnawing tooth in portion engages with the upper gnawing tooth stretching top under stretch, the first tumbler of limited-slip mechanism and the second tumbler engage；When stretching power transmission shaft second time, if the shallow grinding tooth of the lower gnawing tooth in portion engages with the upper gnawing tooth stretching top under stretch, first tumbler of limited-slip mechanism sinks, first tumbler and the second tumbler depart from, first tumbler and the second tumbler do not engage, then the second unable prevention of tumbler it, curtain shutter, under the effect of self gravitation, can decline rapidly；Again stretch power transmission shaft, then the deep grinding tooth of the lower gnawing tooth stretching bottom engages with the upper gnawing tooth stretching top, and the first tumbler of limited-slip mechanism and the second tumbler engage。
Compared with prior art, a key provided by the invention stretches curtain unidirectional control device and the curtain thereof of curtain landing, controller can provide good non-return effect, control curtain to decline because of the action of gravity of self, make the accurate positioning that curtain rises or falls, curtain can stretch landing by a key simultaneously, saves the operation progressively landed, more convenient and quick。
It should be noted that the curtain unidirectional control device of the present invention is except being applied on sun blind, it is also possible to suitable in roller shutter, Roman shade, zebra curtain, Shangri-La curtain, organ shade and pleated curtain。The present invention simply illustrates with sun blind, if all curtain provided above apply described curtain unidirectional control device all in protection domain。
Accompanying drawing explanation
Fig. 1 is the overall appearance structural representation of the curtain unidirectional control device that a key stretches curtain landing in the embodiment of the present invention；
Fig. 2 is the explosive view of the curtain unidirectional control device that a key stretches curtain landing in Fig. 1；
Fig. 3 is the sectional view of the curtain unidirectional control device that a key stretches curtain landing in Fig. 1；
Fig. 4 is that the embodiment of the present invention one key stretches the enlarged drawing of the first tumbler in the curtain unidirectional control device that curtain lands；
Fig. 5 is that the embodiment of the present invention one key stretches the enlarged drawing of rotation spring in the curtain unidirectional control device that curtain lands；
Fig. 6 is that the embodiment of the present invention one key stretches the enlarged drawing of power transmission shaft in the curtain unidirectional control device that curtain lands；
Fig. 7 is that the embodiment of the present invention one key stretches the enlarged drawing stretching shell in the curtain unidirectional control device that curtain lands；
Fig. 8 is that the embodiment of the present invention one key stretches the enlarged drawing stretching top in the curtain unidirectional control device that curtain lands；
Fig. 9 is that the embodiment of the present invention one key stretches the enlarged drawing stretching bottom in the curtain unidirectional control device that curtain lands。
Detailed description of the invention
In order to those skilled in the art better understood when technical scheme provided by the present invention, it is illustrated below in conjunction with specific embodiment。
This case can be illustrated by below example and be fully understood so that the personage haveing the knack of this skill can complete it according to this, the embodiment of right this case not can by following and limited its implement kenel。
Referring to Fig. 1-Fig. 9, Fig. 1 is the overall appearance structural representation of the curtain unidirectional control device that a key stretches curtain landing in the embodiment of the present invention；Fig. 2 is the explosive view of the curtain unidirectional control device that a key stretches curtain landing in Fig. 1；Fig. 3 is the sectional view of the curtain unidirectional control device that a key stretches curtain landing in Fig. 1；Fig. 4 is that the embodiment of the present invention one key stretches the enlarged drawing of the first tumbler in the curtain unidirectional control device that curtain lands；Fig. 5 is that the embodiment of the present invention one key stretches the enlarged drawing of rotation spring in the curtain unidirectional control device that curtain lands；Fig. 6 is that the embodiment of the present invention one key stretches the enlarged drawing of power transmission shaft in the curtain unidirectional control device that curtain lands；Fig. 7 is that the embodiment of the present invention one key stretches the enlarged drawing stretching shell in the curtain unidirectional control device that curtain lands；Fig. 8 is that the embodiment of the present invention one key stretches the enlarged drawing stretching top in the curtain unidirectional control device that curtain lands；Fig. 9 is that the embodiment of the present invention one key stretches the enlarged drawing stretching bottom in the curtain unidirectional control device that curtain lands。
The key that the embodiment of the present invention provides stretches the curtain unidirectional control device of curtain landing, including limited-slip mechanism and a key drawing mechanism, wherein:
Limited-slip mechanism includes on-slip shell, first tumbler the 4, second tumbler 5, rotation spring 6 and power transmission shaft 3, wherein:
First tumbler 4 axially intersects or interlaced arrangement with the second tumbler 5, and the gear of the first tumbler 4 and the gear of the second tumbler 5 engage；The top of the first tumbler 4 is bevel gear 41, engages with the bevel gear of the second tumbler 5, and the bottom of the first tumbler 4 is beam barrel 42, and beam barrel 42 is provided with spacing breach 43；Rotation spring 6 is torsion spring, and rotation spring 6 includes turn-knob portion 61 and two contact parts 62 stretched out from turn-knob portion inward at both ends；The turn-knob portion 61 of rotation spring 6 is socketed in outside the beam barrel 42 of the first tumbler 4, and two contact parts 62 of rotation spring 6 are respectively held against one end of spacing breach 43；The top of power transmission shaft 3 is inserted in the beam barrel 42 of the first tumbler 4, and the upper periphery of power transmission shaft 3 is provided with the first projection 31, and the first projection 31 is stuck between two contact parts 62 of rotation spring 6；On-slip shell is provided with installation slotted eye, and the first tumbler 4 is arranged in installation slotted eye, and the periphery, turn-knob portion 61 of rotation spring 6 is limited in the inner circumferential installing slotted eye；
When power transmission shaft 3 active rotation, its first projection 31 props up a contact part 62 of rotation spring 6, have an effect from inside to outside, the turn-knob portion 61 making rotation spring 6 reduces in circumferential direction, rotation spring 6 rotates, and then its contact part 62 drives the first tumbler 4 to rotate, thus driving the second tumbler 5 to rotate；When power transmission shaft 3 does not rotate, the turn-knob portion 61 of rotation spring 6 recovers to amplify in circumferential direction, and then makes the periphery, turn-knob portion 61 of rotation spring 6 be in limited state；When the first tumbler 4 active rotation, the spacing breach 43 of the first tumbler 4 props up a contact part 62 of rotation spring 6, and ecto-entad is had an effect so that the turn-knob portion 61 of rotation spring 6 amplifies in circumferential direction, and rotation spring 6 cannot rotate。
One key drawing mechanism includes stretching shell 12, stretching top 11, stretching bottom 10, extension spring 13 and bar 16 of connecting, bar 16 of connecting is sequentially connected in series stretching shell 12, extension spring 13 from top to bottom, stretches top 11 and stretch bottom 10, and extension spring 13, stretching top 11 and stretching bottom 10 are limited in stretching shell 12；Stretching shell 12 inside and vertical direction is provided with guide rail 121, the bottom stretching top 11 is provided with upper gnawing tooth 112, and the periphery stretching top is provided with top gathering sill 111, and the top gathering sill 111 stretching top 11 is spacing on the guide rail 121 stretching shell 12；The upper end stretching bottom 10 is provided with lower gnawing tooth 102, and the periphery stretching bottom 10 is provided with bottom gathering sill 101, and bottom gathering sill 101 is also spacing on the guide rail 121 stretching shell 12, and upper gnawing tooth 112 and lower gnawing tooth 102 engage；
Series connection bar 16 is connected with the top of on-slip shell；The bottom of power transmission shaft 3 is socketed with coil tension spring 8, and the top and bottom of coil tension spring 8 are limited。
Upper mounting seat 2 and lower mounting seat 1 cover in jointly limited-slip mechanism and a key drawing mechanism being wrapped in, and pass in the axis hole of the bottom seat 1 installed from below of power transmission shaft 3。Lower mounting seat 1 is being provided with fixed shaft hole 18, and fixed shaft hole 18 installs the second tumbler 5, and upper mounting seat 2 covers in lower mounting seat 1。Upper mounting seat 2 is covered and is connected by screw 17 after lower mounting seat 1。
On-slip shell is divided into the first shell 14 and second housing 15, first tumbler 4, rotation spring 6 and power transmission shaft 3 are arranged in the on-slip shell of the first shell 14 and second housing 15 composition, and the gear exposed portion of the first tumbler 4 is engaged by on-slip shell with the second tumbler 5。
Lock ring 9 is socketed on power transmission shaft 3 and is stuck on on-slip shell by the top of power transmission shaft 3, and the upper end of coil tension spring 8 is stapled 9 spacing, and the lower end of coil tension spring 8 is spacing by the inner bottom part of lower mounting seat 1。
Limited-slip mechanism also includes quoit 7, and quoit 7 is between the periphery, turn-knob portion 61 of rotation spring 6 and the inner circumferential installing slotted eye。In general, lower mounting seat 1 is generally all made by plastic material, and rotation spring 6 is metal, when the installation slotted eye of rotation spring 6 with the lower mounting seat 1 of plastic material contacts friction, cause that mounting groove pore volume is easy to wear, in order to avoid this situation, quoit 7 is set between the periphery, turn-knob portion 61 of rotation spring 6 and the inner circumferential installing slotted eye, more wear-resisting。
The upper periphery of power transmission shaft 3 is provided with the second projection 32, and the second projection 32 is arranged on the periphery that the first projection 31 is relative。The effect of the second projection 32 has two, one be can the first projection 31 of balanced drive shaft 3, if power transmission shaft 3 only projection, unbalanced when stress and rotation；Two is the effect that can play screens, and the first of power transmission shaft 3 top protruding 31 and the second projection 32 are stuck in the big slotted eye in top of step slotted eye, it is possible to screens better。
The beam barrel 42 of the first tumbler 4 is positioned at installation slotted eye, and the bottom of power transmission shaft 3 is through installing slotted eye, and the first of power transmission shaft 3 top protruding 31 and the second projection 32 are stuck in installation slotted eye。The bottom of power transmission shaft 3 is provided with connecting hole 33, power transmission shaft 3 by the connecting hole 33 of bottom and connector and drive drive axis force mechanisms be connected。
Spacing breach 43 size of beam barrel 42 accounts for the 1/3 of whole beam barrel 42 circumference, namely can ensure that the stress of beam barrel 42, can ensure that again the contact part 62 of rotation spring 6 has enough spaces to block the first projection of power transmission shaft 3。
The inside stretching shell 12 is relatively set with three guide rails 121, stretches top 11 and arranges three top gathering sills 111, stretches bottom 10 and is provided with three bottom gathering sills 101, and it is depth grinding tooth that 102 teeth are nibbled in the upper end of stretching bottom 10。
A key provided by the invention stretches the curtain unidirectional control device of curtain landing, limited-slip mechanism is not when normal power transmission shaft 3 rotates, the periphery, turn-knob portion 61 of rotation spring 6 is limited in the inner circumferential installing slotted eye of on-slip shell, rotation spring 6 is retracted, it is provided with quoit 7 between rotation spring 6 and installation slotted eye, being geo-stationary between rotation spring 6 and quoit 7, namely rotation spring 6 will not rotate；When described power transmission shaft 3 active rotation, its first projection 31 props up a contact part 62 of rotation spring 6, have an effect from inside to outside, the turn-knob portion 61 making rotation spring 6 reduces in circumferential direction, rotation spring 6 rotates, and then drive the first tumbler 4 to rotate, thus driving described second tumbler 5 to rotate；When described power transmission shaft 3 does not rotate, the turn-knob portion 61 of described rotation spring 6 recovers to amplify in circumferential direction, and then makes the periphery, turn-knob portion 61 of described rotation spring 6 be in limited state；When described first tumbler 4 active rotation, the spacing breach of described first tumbler 4 props up a contact part 62 of described rotation spring 6, and ecto-entad is had an effect so that the turn-knob portion 61 of described rotation spring 6 amplifies in circumferential direction, and rotation spring 6 cannot rotate。
It addition, a key provided by the invention stretches the curtain unidirectional control device of curtain landing, the extension spring 13 of a key drawing mechanism, stretching top 11 and stretching bottom 10 are limited in stretching shell 12；Stretch shell 12 inside and vertical direction is provided with guide rail 121, the bottom stretching top 11 is provided with upper gnawing tooth 112, the periphery stretching top 11 is provided with top gathering sill 111, and the top gathering sill 111 stretching top 11 is spacing on the guide rail 121 stretching shell 12；The upper end stretching bottom 10 is provided with lower gnawing tooth 102, and the periphery stretching bottom 10 is provided with bottom gathering sill 101, and bottom gathering sill 101 is also spacing on the guide rail 121 stretching shell 12, and upper gnawing tooth 112 and lower gnawing tooth 102 engage；Extension spring 13 withstands stretching top 11 from top, and coil tension spring 8 withstands the bottom of on-slip shell from bottom；Under normal circumstances, the gear of the first tumbler 4 and described second tumbler 5 is engagement, and the engaged gears of the first tumbler 4 lives the gear of the second tumbler 5 and by the power transmission of rotation to the second tumbler 5；When stretching downwards power transmission shaft 3, on-slip shell is down stretched by power transmission shaft 3 simultaneously, owing to on-slip shell is connected with series connection bar 16, on-slip shell drives series connection bar 16 also to decline, firmly can not be rotated by the guide rail 121 of inside is spacing stretching in shell 12 owing to stretching top 11, can only move up and down, extrusion stretching bottom 10 moves down along guide rail 121, when stretching bottom 10 and moving down into certain distance, bottom gathering sill 101 getaway 121 spacing, stretch bottom 10 can produce to rotate under upper gnawing tooth 112 and lower gnawing tooth 102 engagement, stretch bottom 10 can rotate；Further, since the lower gnawing tooth 102 stretching bottom 10 is depth grinding tooth, stretching bottom 10 and often rotate once, the depth grinding tooth of lower gnawing tooth 102 alternately will be nibbled 112 with the upper end stretching top 11 and engage。Stretch power transmission shaft 3 first time time, if under stretch the lower gnawing tooth 102 in portion 10 deep grinding tooth 104 with stretch top 11 upper gnawing tooth 112 engage, limited-slip mechanism first rotation 4 engage with the second tumbler 5；When stretching power transmission shaft 3 second time, if the shallow grinding tooth 103 of the lower gnawing tooth 102 in portion 10 engages with the upper gnawing tooth 112 stretching top 11 under stretch, first tumbler 4 of limited-slip mechanism sinks, first tumbler 4 and the second tumbler 5 depart from, first tumbler 4 does not engage with the second tumbler 5, then the second unable prevention of tumbler 5 it, curtain shutter, under the effect of self gravitation, can decline rapidly；Again stretch power transmission shaft 3, then the deep grinding tooth 104 of the lower gnawing tooth 102 stretching bottom 10 engages with the upper gnawing tooth 112 stretching top 11, and the first tumbler 4 of limited-slip mechanism engages again with the second tumbler 5。
Compared with prior art, a key provided by the invention stretches the curtain unidirectional control device of curtain landing, controller can provide good non-return effect, control curtain to decline because of the action of gravity of self, make the accurate positioning that curtain rises or falls, curtain can stretch landing by a key simultaneously, saves the operation progressively landed, more convenient and quick。
The embodiment of the present invention also provides for an a kind of key and stretches the curtain of curtain landing, including roller shutter and the controller that roller shutter is carried out folding and unfolding control, roller shutter is carried out the key that the controller of folding and unfolding control is and stretches the curtain unidirectional control device of curtain landing, one key stretches the curtain of curtain landing, including limited-slip mechanism and a key drawing mechanism, wherein:
Limited-slip mechanism includes on-slip shell, first tumbler the 4, second tumbler 5, rotation spring 6 and power transmission shaft 3, wherein:
First tumbler 4 axially intersects or interlaced arrangement with the second tumbler 5, and the gear of the first tumbler 4 and the gear of the second tumbler 5 engage；The top of the first tumbler 4 is bevel gear 41, engages with the bevel gear of the second tumbler 5, and the bottom of the first tumbler 4 is beam barrel 42, and beam barrel 42 is provided with spacing breach 43；Rotation spring 6 is torsion spring, and rotation spring 6 includes turn-knob portion 61 and two contact parts 62 stretched out from turn-knob portion inward at both ends；The turn-knob portion 61 of rotation spring 6 is socketed in outside the beam barrel 42 of the first tumbler 4, and two contact parts 62 of rotation spring 6 are respectively held against one end of spacing breach 43；The top of power transmission shaft 3 is inserted in the beam barrel 42 of the first tumbler 4, and the upper periphery of power transmission shaft 3 is provided with the first projection 31, and the first projection 31 is stuck between two contact parts 62 of rotation spring 6；On-slip shell is provided with installation slotted eye, and the first tumbler 4 is arranged in installation slotted eye, and the periphery, turn-knob portion 61 of rotation spring 6 is limited in the inner circumferential installing slotted eye；
When power transmission shaft 3 active rotation, its first projection 31 props up a contact part 62 of rotation spring 6, have an effect from inside to outside, the turn-knob portion 61 making rotation spring 6 reduces in circumferential direction, rotation spring 6 rotates, and then its contact part 62 drives the first tumbler 4 to rotate, thus driving the second tumbler 5 to rotate；When power transmission shaft 3 does not rotate, the turn-knob portion 61 of rotation spring 6 recovers to amplify in circumferential direction, and then makes the periphery, turn-knob portion 61 of rotation spring 6 be in limited state；When the first tumbler 4 active rotation, the spacing breach 43 of the first tumbler 4 props up a contact part 62 of rotation spring 6, and ecto-entad is had an effect so that the turn-knob portion 61 of rotation spring 6 amplifies in circumferential direction, and rotation spring 6 cannot rotate。
One key drawing mechanism includes stretching shell 12, stretching top 11, stretching bottom 10, extension spring 13 and bar 16 of connecting, bar 16 of connecting is sequentially connected in series stretching shell 12, extension spring 13 from top to bottom, stretches top 11 and stretch bottom 10, and extension spring 13, stretching top 11 and stretching bottom 10 are limited in stretching shell 12；Stretching shell 12 inside and vertical direction is provided with guide rail 121, the bottom stretching top 11 is provided with upper gnawing tooth 112, and the periphery stretching top is provided with top gathering sill 111, and the top gathering sill 111 stretching top 11 is spacing on the guide rail 121 stretching shell 12；The upper end stretching bottom 10 is provided with lower gnawing tooth 102, and the periphery stretching bottom 10 is provided with bottom gathering sill 101, and bottom gathering sill 101 is also spacing on the guide rail 121 stretching shell 12, and upper gnawing tooth 112 and lower gnawing tooth 102 engage；
Series connection bar 16 is connected with the top of on-slip shell；The bottom of power transmission shaft 3 is socketed with coil tension spring 8, and the top and bottom of coil tension spring 8 are limited。
Upper mounting seat 2 and lower mounting seat 1 cover in jointly limited-slip mechanism and a key drawing mechanism being wrapped in, and pass in the axis hole of the bottom seat 1 installed from below of power transmission shaft 3。Lower mounting seat 1 is being provided with fixed shaft hole 18, and fixed shaft hole 18 installs the second tumbler 5, and upper mounting seat 2 covers in lower mounting seat 1。Upper mounting seat 2 is covered and is connected by screw 17 after lower mounting seat 1。
On-slip shell is divided into the first shell 14 and second housing 15, first tumbler 4, rotation spring 6 and power transmission shaft 3 are arranged in the on-slip shell of the first shell 14 and second housing 15 composition, and the gear exposed portion of the first tumbler 4 is engaged by on-slip shell with the second tumbler 5。
Lock ring 9 is socketed on power transmission shaft 3 and is stuck on on-slip shell by the top of power transmission shaft 3, and the upper end of coil tension spring 8 is stapled 9 spacing, and the lower end of coil tension spring 8 is spacing by the inner bottom part of lower mounting seat 1。
Limited-slip mechanism also includes quoit 7, and quoit 7 is between the periphery, turn-knob portion 61 of rotation spring 6 and the inner circumferential installing slotted eye。In general, lower mounting seat 1 is generally all made by plastic material, and rotation spring 6 is metal, when the installation slotted eye of rotation spring 6 with the lower mounting seat 1 of plastic material contacts friction, cause that mounting groove pore volume is easy to wear, in order to avoid this situation, quoit 7 is set between the periphery, turn-knob portion 61 of rotation spring 6 and the inner circumferential installing slotted eye, more wear-resisting。
The upper periphery of power transmission shaft 3 is provided with the second projection 32, and the second projection 32 is arranged on the periphery that the first projection 31 is relative。The effect of the second projection 32 has two, one be can the first projection 31 of balanced drive shaft 3, if power transmission shaft 3 only projection, unbalanced when stress and rotation；Two is the effect that can play screens, and the first of power transmission shaft 3 top protruding 31 and the second projection 32 are stuck in the big slotted eye in top of step slotted eye, it is possible to screens better。
The beam barrel 42 of the first tumbler 4 is positioned at installation slotted eye, and the bottom of power transmission shaft 3 is through installing slotted eye, and the first of power transmission shaft 3 top protruding 31 and the second projection 32 are stuck in installation slotted eye。The bottom of power transmission shaft 3 is provided with connecting hole 33, power transmission shaft 3 by the connecting hole 33 of bottom and connector and drive drive axis force mechanisms be connected。
Spacing breach 43 size of beam barrel 42 accounts for the 1/3 of whole beam barrel 42 circumference, namely can ensure that the stress of beam barrel 42, can ensure that again the contact part 62 of rotation spring 6 has enough spaces to block the first projection of power transmission shaft 3。
The inside stretching shell 12 is relatively set with three guide rails 121, stretches top 11 and arranges three top gathering sills 111, stretches bottom 10 and is provided with three bottom gathering sills 101, and it is depth grinding tooth that 102 teeth are nibbled in the upper end of stretching bottom 10。
Compared with prior art, a key provided by the invention stretches the curtain of curtain landing, controller can provide good non-return effect, control curtain to decline because of the action of gravity of self, make the accurate positioning that curtain rises or falls, curtain can stretch landing by a key simultaneously, saves the operation progressively landed, more convenient and quick。
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention。The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments。Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty。
Claims (10)
1. a key stretches the curtain unidirectional control device that curtain lands, it is characterised in that include limited-slip mechanism and a key drawing mechanism, wherein:
Described limited-slip mechanism includes on-slip shell, the first tumbler, the second tumbler, rotation spring and power transmission shaft, wherein:
Described first tumbler axially intersects or interlaced arrangement with described second tumbler, and the gear of described first tumbler and the gear of described second tumbler engage；The top of described first tumbler is bevel gear, and bottom is beam barrel, and described beam barrel is provided with spacing breach；Described rotation spring is torsion spring, and described rotation spring includes turn-knob portion and two contact parts stretched out from described turn-knob portion inward at both ends；The turn-knob portion of described rotation spring is socketed in outside the beam barrel of described first tumbler, and two contact parts of described rotation spring are respectively held against one end of described spacing breach；The top of described power transmission shaft is inserted in the beam barrel of described first tumbler, and the upper periphery of described power transmission shaft is provided with the first projection, and described first projection is stuck between two contact parts of described rotation spring；Described on-slip shell is provided with installation slotted eye, and described first tumbler is arranged in described installation slotted eye, and the periphery, turn-knob portion of described rotation spring is limited in the inner circumferential of described installation slotted eye；
When described power transmission shaft active rotation, its first projection props up a contact part of described rotation spring, have an effect from inside to outside, the turn-knob portion making described rotation spring reduces in circumferential direction, rotation spring rotates, and then drive described first tumbler to rotate, thus described second tumbler is driven to rotate；When described power transmission shaft does not rotate, the turn-knob portion of described rotation spring recovers to amplify in circumferential direction, and then makes the periphery, turn-knob portion of described rotation spring be in limited state；When described first tumbler active rotation, the spacing breach of described first tumbler props up a contact part of described rotation spring, and ecto-entad is had an effect so that the turn-knob portion of described rotation spring amplifies in circumferential direction, and rotation spring cannot rotate；
A described key drawing mechanism includes stretching shell, stretches top, stretches bottom, extension spring and series connection bar, described series connection bar is sequentially connected in series residence from top to bottom and states stretching shell, described extension spring, described stretching top and stretch bottom, and described extension spring, described stretching top and described stretching bottom are limited in described stretching shell；Described stretching enclosure is provided with guide rail at vertical direction, and the bottom on described stretching top is provided with upper gnawing tooth, and the periphery on described stretching top is provided with top gathering sill, and the top gathering sill on described stretching top is spacing on the guide rail of described stretching shell；The upper end of described stretching bottom is provided with lower gnawing tooth, and the periphery of described stretching bottom is provided with bottom gathering sill, and described bottom gathering sill is also spacing on the guide rail of described stretching shell, and described upper gnawing tooth and described lower gnawing tooth engage；
Described series connection bar is connected with the top of described on-slip shell；The bottom of described power transmission shaft is socketed with coil tension spring, and the top and bottom of described coil tension spring are limited。
2. a key according to claim 1 stretches the curtain unidirectional control device of curtain landing, it is characterised in that also including quoit, described quoit is between the inner circumferential of the periphery, turn-knob portion of described rotation spring and described installation slotted eye。
3. a key according to claim 1 stretches the curtain unidirectional control device of curtain landing, it is characterised in that the upper periphery of described power transmission shaft is provided with the second projection, and described second projection is arranged on the described first protruding relative periphery。
4. a key according to claim 3 stretches the curtain unidirectional control device of curtain landing, it is characterised in that the first of described power transmission shaft top is protruding to be stuck in the installation slotted eye of described on-slip shell with the second projection。
5. a key according to claim 1 stretches the curtain unidirectional control device of curtain landing, it is characterized in that, the bottom of described power transmission shaft is provided with connecting hole, described power transmission shaft by the connecting hole of bottom and connector and the described drive axis of drive force mechanisms be connected。
6. a key according to claim 1 stretches the curtain unidirectional control device of curtain landing, it is characterized in that, described on-slip shell is divided into the first shell and second housing, described first tumbler, rotation spring and power transmission shaft are arranged in the on-slip shell of described first shell and described second housing composition, and the gear exposed portion of described first tumbler is engaged by described on-slip shell with described second tumbler。
7. a key according to claim 1 stretches the curtain unidirectional control device of curtain landing, it is characterized in that, also include mounting seat and lower mounting seat, described upper mounting seat and described lower mounting seat cover in jointly described limited-slip mechanism and a described key drawing mechanism being wrapped in, and the bottom of described power transmission shaft passes from the axis hole of described lower mounting seat。
8. a key according to claim 7 stretches the curtain unidirectional control device of curtain landing, it is characterized in that, also include lock ring, described lock ring is socketed on described power transmission shaft and is stuck on described on-slip shell by the top of described power transmission shaft, the upper end of described coil tension spring is spacing by described lock ring, and the lower end of described coil tension spring is spacing by the inner bottom part of described lower mounting seat。
9. a key according to claim 1 stretches the curtain unidirectional control device of curtain landing, it is characterized in that, the inside of described stretching shell is relatively set with three guide rails, described stretching top arranges three top gathering sills, described stretching bottom is provided with three bottom gathering sills, and the lower gnawing tooth of described stretching bottom is depth grinding tooth。
10. a key stretches the curtain that curtain lands, including roller shutter and the controller that described roller shutter is carried out folding and unfolding control, it is characterized in that, the controller that described roller shutter carries out folding and unfolding control is the curtain unidirectional control device that the key as described in any one of claim 1-9 stretches curtain landing。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410520692.2A CN104329010B (en) | 2014-09-30 | 2014-09-30 | An a kind of key stretches curtain unidirectional control device and the curtain thereof of curtain landing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410520692.2A CN104329010B (en) | 2014-09-30 | 2014-09-30 | An a kind of key stretches curtain unidirectional control device and the curtain thereof of curtain landing |
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| CN104329010A CN104329010A (en) | 2015-02-04 |
| CN104329010B true CN104329010B (en) | 2016-06-22 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1498570A1 (en) * | 2003-07-17 | 2005-01-19 | Nien Made Enterprise Co., Ltd. | Wrap clutch device for anti-reverse transmission and window blind using the same |
| JP2013083115A (en) * | 2011-10-12 | 2013-05-09 | Bunka Shutter Co Ltd | Opening/closing body stopping device for opening/closing apparatus |
| CN204266894U (en) * | 2014-09-30 | 2015-04-15 | 广州嘉伦橡塑有限公司 | A kind of curtain unidirectional control device of a key stretching curtain landing and curtain thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140014281A1 (en) * | 2012-07-13 | 2014-01-16 | Homerun Holdings Corporation | Shade with a Shear Pin and Method for Pretensioning a Shade |
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2014
- 2014-09-30 CN CN201410520692.2A patent/CN104329010B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1498570A1 (en) * | 2003-07-17 | 2005-01-19 | Nien Made Enterprise Co., Ltd. | Wrap clutch device for anti-reverse transmission and window blind using the same |
| JP2013083115A (en) * | 2011-10-12 | 2013-05-09 | Bunka Shutter Co Ltd | Opening/closing body stopping device for opening/closing apparatus |
| CN204266894U (en) * | 2014-09-30 | 2015-04-15 | 广州嘉伦橡塑有限公司 | A kind of curtain unidirectional control device of a key stretching curtain landing and curtain thereof |
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| Publication number | Publication date |
|---|---|
| CN104329010A (en) | 2015-02-04 |
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