WO2018223483A1 - 卷帘驱动装置 - Google Patents

卷帘驱动装置 Download PDF

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Publication number
WO2018223483A1
WO2018223483A1 PCT/CN2017/092402 CN2017092402W WO2018223483A1 WO 2018223483 A1 WO2018223483 A1 WO 2018223483A1 CN 2017092402 W CN2017092402 W CN 2017092402W WO 2018223483 A1 WO2018223483 A1 WO 2018223483A1
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WO
WIPO (PCT)
Prior art keywords
shaft
roller blind
winding drum
driving device
connecting shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/092402
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English (en)
French (fr)
Inventor
雷振邦
雷兴邦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US16/345,738 priority Critical patent/US11028642B2/en
Publication of WO2018223483A1 publication Critical patent/WO2018223483A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/60—Spring drums operated only by closure members
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47H—FURNISHINGS FOR WINDOWS OR DOORS
    • A47H5/00—Devices for drawing draperies, curtains, or the like
    • A47H5/02—Devices for opening and closing curtains
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
    • E06B9/50—Bearings specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive

Definitions

  • the present invention relates to the field of curtain technology, and in particular to a roller blind driving device.
  • a roller blind is a curtain product in which a cord is wound on a winding drum and is controlled by a pull cord or a chain, and the operation is simple and convenient.
  • a roller blind is called a spring roller blind, which is also called a semi-automatic roller blind, because of the built-in spring device of the winding drum.
  • Both ends of the winding drum of the existing spring roller blind are respectively mounted on the corresponding brackets, and spring ends, coil springs, dampers and limit positions are sequentially arranged from one end to the other end in the winding cylinder.
  • Device When it is necessary to lower the curtain, it is only necessary to pull down the curtain, and the curtain will drive the winding drum to rotate and rotate relative to the coil spring, so that the coil spring is twisted and deformed to accumulate elastic force, and the damper can make the curtain stay by means of the damper. Any height position within the effective travel range of the curtain.
  • the curtain In order to close the curtain, the curtain can be pushed up, and the force of the coil spring can overcome the damping effect of the damper to drive the winding drum to rotate in any direction, thereby rewinding the cord to the winding drum.
  • the existing spring roller blind adopts a coil spring. During the movement, the entire coil spring is deformed, which makes the generated elastic force difficult to control effectively. When the elastic force is too large, the curtain is easily lifted rapidly, resulting in a lower
  • the strut along the striking striking the upper beam has to be equipped with a damper to slowly release the elastic force of the coil spring, which in turn leads to a relatively complicated structure, high component cost and assembly cost.
  • the technical problem to be solved by the embodiment of the present invention is to provide a roller blind driving device capable of smoothly driving the retracting of the roller blind.
  • an embodiment of the present invention provides a roller blind driving device for driving a winding drum having one end of a curtain fixed to the outer side and pivotally connected to the corresponding supporting frame at both ends.
  • the two ends of the winding drum are respectively arranged by means of a pivot, and the roller blind driving device is mounted on one of the support frame and the winding drum
  • the roller blind driving device includes a rotating shaft pivoted on an inner side surface of the support frame, a planar scroll spring disposed on an outer side of the intermediate shaft and axially parallel to the intermediate rotating shaft, and the winding drum a pivot shaft having one end fixed in a circumferential direction and connected to a shaft corresponding to the intermediate shaft, and an outer end of the reed of the planar scroll spring is fixed to an outer side surface of the intermediate shaft.
  • the inner side of the support frame is provided with at least one shaft, each of which is sleeved with a planar scroll spring, and the outer ends of the springs of the planar scroll springs are respectively fixed in the middle Different positions on the outer side of the shaft.
  • the shaft is further sleeved with a bushing, and the planar scroll spring is sleeved on the bushing.
  • the pivot shaft includes a plug end for inserting into a cavity of the corresponding end of the winding drum, and a connecting shaft at one end of the plug end away from the winding drum, the plug end and the coil
  • the inner wall of the cylinder is clamped to each other so as to be relatively fixed in the circumferential direction.
  • the insertion end is further provided with a limiting piece for resisting the outer end surface of the winding cylinder, and the connecting shaft is connected with the shaft of the intermediate shaft.
  • the end surface of the intermediate shaft facing one end of the winding drum is provided with a connecting hole, and the connecting shaft is correspondingly inserted into the connecting hole, and the cross section of the connecting hole and the cross section of the connecting shaft are
  • the matching non-circular shape is achieved in a circumferentially opposite manner or is fixedly connected to the connecting shaft and the intermediate shaft by a fixing pin penetrating into the connecting hole from the side of the intermediate shaft and inserted into the connecting shaft.
  • the support frame is provided with a circular hole, and one end of the intermediate shaft is cylindrical and inserted into the circular hole, and the intermediate shaft is inserted into the end surface of one end of the circular hole.
  • the insertion end is a hollow body and only a pipe body that is opened at one end of the connecting shaft, the connecting shaft is inserted into the pipe body, and the cross section of the connecting shaft and the inner pipe of the pipe body are connected
  • the cross section of the hole is a matching non-circular shape.
  • the pipe wall of the pipe body is further provided with a card slot extending through the pipe wall and extending along the axial direction of the pipe body, and the connecting shaft is correspondingly provided with a barb that is locked in the card slot. And a compression spring elastically biased against one end of the connecting shaft inserted into the tube body is disposed in the tube body.
  • the inner wall of the winding drum protrudes toward the center of the inner cavity to form a boss, and the outer side wall of the plug end correspondingly forms a recessed groove, and the insertion end is inserted into the inner cavity of the winding drum.
  • the boss is correspondingly embedded in the recess.
  • the roller blind driving device further includes a cover assembled on an inner side of the support frame pivotally provided with the intermediate shaft, the cover and the support frame cooperate to form a closed mounting cavity, the intermediate shaft and The planar scroll springs are all mounted in the mounting cavity, and the cover is provided with a through hole for exposing the intermediate shaft.
  • the advantageous effects of the inventive embodiment are as follows: By providing a roller blind driving device between one of the support frames and the winding drum, and providing a driving force by using a planar scroll spring, it is possible to further Goodly design the driving force required for the curtain to retract. Moreover, the overall structure is simple, easy to assemble and easy to handle.
  • FIG. 1 is a schematic view showing a partial structure disassembled state of an embodiment of the present invention for creating a roller blind driving device.
  • FIG. 2 is a view showing another angle of a partial structure split state of an embodiment of the present invention for creating a roller blind drive device.
  • FIG 3 is a cross-sectional view showing an embodiment of the present invention for creating a roller blind drive device.
  • FIG. 4 is a schematic structural view of an embodiment of the present invention for creating a roller blind driving device.
  • FIG. 5 is a schematic structural view of another embodiment of the present invention for creating a roller blind driving device.
  • an embodiment of the present invention provides a roller blind driving device for driving a winding drum 1 to which one end of a curtain (not shown) is fixed on an outer side surface, the winding
  • the two ends of the bobbin 1 are respectively pivotally connected to the corresponding support frame 3, and the roller blind driving device is disposed between one of the support frames 3 and the winding drum 1, specifically including the inner side of the support frame 3.
  • the upper intermediate shaft 40, the planar scroll spring 42 disposed outside the intermediate shaft 40 and axially parallel to the intermediate shaft 40, and the one end of the winding drum 1 are fixed in the circumferential direction
  • the pivot shaft 44 is further connected to the pivot shaft 44.
  • the outer end of the spring of the planar scroll spring 42 is fixed to the outer side surface of the intermediate shaft 40.
  • the driving force required for the curtain to be retracted can be better designed.
  • the overall structure is simple, easy to assemble and easy to handle.
  • the inner side of the support frame 3 is provided with at least one shaft 30, and each shaft 30 is sleeved with a planar scroll spring 42 and each plane scroll
  • the outer ends of the springs of the spring 42 are respectively fixed at different positions on the outer side of the intermediate shaft 40.
  • a planar scroll spring 42 is assembled, and in the embodiment shown in Fig. 5, two planar scroll springs 42 are assembled.
  • the plurality of planar scroll springs 42 can be provided to jointly drive the intermediate shaft 40, and the driving force distribution corresponding to the curtains at different height positions can be more flexibly designed according to the width and weight of the curtain, and can also be conveniently
  • the design and manufacture of the planar scroll spring 42 reduces cost.
  • the shaft 30 is further sleeved with a bushing 32, and the planar scroll spring 42 is sleeved on the bushing 32.
  • the roller blind driving device further includes a cover 34 assembled on an inner side surface of the support frame 3 pivotally provided with the intermediate shaft 40, the cover 34 and the support The frame 3 cooperates to form a closed mounting cavity.
  • the intermediate shaft 40 and the planar scroll spring 42 are both mounted in the mounting cavity, and the cover 34 is provided with a through hole 340 for the intermediate shaft 40 to be exposed.
  • the pivot 44 includes a plug end 440 for insertion into the inner cavity 10 of the corresponding end of the winding drum 1 and a remote winding drum at the plug end 440.
  • the insertion end 440 is further provided with a limiting piece 443 for resisting the outer end surface of the winding drum 1.
  • the depth of the insertion end of the insertion end can be effectively controlled by providing the limiting piece 443, and the connecting shaft 442 is
  • the intermediate shaft 40 corresponds to the shaft connection.
  • by dividing the pivot 44 into the insertion end 440 and the connecting shaft 442 it is possible to more easily assemble the pivot 44 into the winding drum 1 and achieve circumferential fixation, and The convenient pivot 44 is coupled to the intermediate shaft 40 via the connecting shaft 442 for power transmission.
  • the end surface of the intermediate shaft 40 facing the one end of the winding drum 1 is provided with a connecting hole 400, and the connecting shaft 442 is correspondingly inserted into the connecting hole 400,
  • the cross section of the connecting hole 400 and the cross section of the connecting shaft 442 are matched non-circular shapes, for example: hexagon, triangle, pentagon, ellipse, star, etc., by a non-circular cross-section design,
  • the connecting shaft 442 is inserted into the connecting hole 40 0, and the power transmission between the intermediate shaft 40 and the connecting shaft 442 is realized, and the power loss is small.
  • the end surface of the intermediate shaft 40 facing the end of the winding drum 1 is provided with a connecting hole 400, and the connecting shaft 442 is correspondingly inserted into the connecting hole 400,
  • a fixing pin (not shown) penetrates from the side of the intermediate shaft 40 into the connecting hole 400 and is inserted into the connecting shaft 442 to fixedly connect the connecting shaft 442 and the intermediate shaft 40, so that the shaft connection can be realized as well, and power transmission can be performed.
  • the support frame 3 is provided with a circular hole 36, and one end of the intermediate shaft 40 is cylindrical and inserted in the circular hole 36, and the The end surface of the intermediate shaft 40 that is inserted into one end of the circular hole 36 is provided with an operation hole 402 having a non-circular cross section.
  • An end surface of the intermediate shaft 40 is exposed from the circular hole 36 in the support frame 3, and the operation hole 402 of the non-circular cross section is provided on the end surface, and the operation hole 402 can be inserted into the operation hole 402 by a tool if necessary.
  • a pre-winding operation of the planar scroll spring 42 is achieved.
  • the insertion end 440 of the pivot 44 is hollow and only the tube is cut at one end of the connecting shaft 442, and the connecting shaft 442 is inserted into the body.
  • the cross section of the connecting shaft 442 and the inner tube hole 441 of the tube body are matched in a non-circular shape, for example: a hexagon, a triangle, a pentagon, an ellipse, a star, etc.
  • the circular cross-sectional design can be inserted into the tubular body 442 to realize the power transmission between the plugging end 440 and the connecting shaft 442, and then the winding end 440 drives the winding drum to rotate, and
  • the connection method has a small loss in power transmission.
  • the tube wall of the tube body is further provided with a card slot 445 extending through the tube wall and extending along the axial direction of the tube body, and the connecting shaft 442 is correspondingly provided with a card.
  • the barb 446 is disposed in the card slot 445, and the tube body is further provided with a compression spring 444 elastically pressed against one end of the connecting shaft 442 inserted into the tube body.
  • the connecting shafts 442 can be more stably inserted into the corresponding connecting holes 400 of the intermediate shaft 40.
  • the connecting shaft 442 can be pushed by applying a force to the barb 446 against the thrust of the compression spring 444.
  • the connecting shaft 442 is aligned with the connecting hole 400 of the centering shaft 40, the barb is undoed.
  • the force applied by the 446, the compression spring 444 can act to push the connecting shaft 442 into the connecting hole 400 of the intermediate shaft 40.
  • the inner wall of the winding drum 1 protrudes toward the center of the inner cavity 10 to form a boss 12, and the outer side of the plug end 440 of the pivot 44
  • the wall is correspondingly formed with a fitting groove 447, and the insertion end 440 is inserted into the inner cavity of the winding drum 1, and the boss 12 is correspondingly embedded in the insertion groove 447, thereby achieving circumferential fixation.
  • the outer side surface of the winding drum 1 is recessed inwardly at a position corresponding to the boss 12 to form a slot 14 for fixing one end of the curtain, the slot width of the slot 14 being wider than the slot The inner width is small. This makes it easy to assemble one end of the fabric.
  • the driving of the original planar scroll spring 42 can be performed by simply pulling down or pushing up the curtain.
  • the balance between the force and the weight of the cloth and the frictional resistance is broken, and the operation of lowering the curtain or stowing the curtain can be easily achieved, and the curtain is caused to stay at any height position within the effective stroke range, the plane scroll spring 42 provides a new balance between the driving force and the weight of the cloth and the frictional resistance, even if the force applied to the curtain is removed, the curtain can remain at this height position.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

一种卷帘驱动装置，用于驱动外侧面固定有帘布一端的卷绕筒（1），所述卷绕筒（1）的两端分别借助于枢轴（44）枢接于对应的支撑架（3）上，所述卷帘驱动装置装设于其中一个支撑架（3）和卷绕筒（1）之间，所述卷帘驱动装置包括枢设于支撑架（3）的内侧面上的中转轴（40）、设置于中转轴（40）的外侧且轴向与所述中转轴（40）平行的平面涡卷弹簧（42），所述中转轴（40）与卷绕筒（1）对应端的枢轴（44）对应轴连接，所述平面涡卷弹簧（42）的簧片的外端固定于中转轴（40）的外侧面。

Description

发明名称：卷帘驱动装置
技术领域
[0001] 本发明创造涉及窗帘技术领域， 尤其涉及一种卷帘驱动装置。
背景技术
[0002] 卷帘是一种将帘布卷在卷绕筒上成滚筒状， 采用拉绳或链子进行上升下降的控 制的窗帘产品， 操作简单方便。 其中， 有一种卷帘因其卷绕筒内置弹簧装置而 被称为弹簧卷帘， 又称半自动卷帘。
[0003] 现有的弹簧卷帘的卷绕筒的两端还分别安装于相应的支架上， 且卷绕筒内从一 端至另一端依次设置有弹簧端头、 螺旋弹簧、 阻尼器和限位器。 当需要放下帘 吋， 只需向下拉帘布， 帘布会带动卷绕筒旋转而进而相对于螺旋弹簧发生转动 ， 而使得螺旋弹簧发生扭转变形积累弹力， 同吋借助于阻尼器而能使帘布停留 在帘布有效行程范围内的任何高度位置。 而需要收起帘布吋， 只需向上推帘布 ， 可使螺旋弹簧的作用力克服阻尼器的阻尼作用而带动卷绕筒反正旋转， 从而 将帘布重新卷绕至卷绕筒上。 现有的这种弹簧卷帘采用了螺旋弹簧， 在动作过 程中， 整根螺旋弹簧都发生形变， 导致所产生的弹力难以进行有效控制， 当弹 力过大吋， 容易使帘布快速上升， 导致下沿的撑杆撞击上梁， 而不得不加装阻 尼器来缓慢释放螺旋弹簧的弹力， 而这又导致结构相对复杂， 零件成本及组装 成本高。
技术问题
[0004] 本发明创造实施例要解决的技术问题是， 提供一种卷帘驱动装置， 能平稳地驱 动卷帘的收放。
问题的解决方案
技术解决方案
[0005] 为解决上述技术问题， 本发明创造实施例提供了一种卷帘驱动装置， 用于驱动 外侧面固定有帘布一端且两端分别枢接于对应的支撑架上的卷绕筒， 所述卷绕 筒的两端分别借助于枢轴， 所述卷帘驱动装置装设于其中一个支撑架和卷绕筒 之间， 所述卷帘驱动装置包括枢设于支撑架的内侧面上的中转轴、 设置于中转 轴的外侧且轴向与所述中转轴平行的平面涡卷弹簧以及与所述卷绕筒一端在周 向相对固定且与所述中转轴对应轴连接的枢轴， 所述平面涡卷弹簧的簧片的外 端固定于中转轴的外侧面。
[0006] 进一步地， 所述支撑架的内侧面设置有至少一个轴杆， 每一轴杆上套设有一个 平面涡卷弹簧， 且各平面涡卷弹簧的簧片的外端分别固定于中转轴外侧面的不 同位置。
[0007] 进一步地， 所述轴杆上还套设有衬套， 平面涡卷弹簧套设于所述衬套上。
[0008] 进一步地， 所述枢轴包括用于插入卷绕筒对应端的内腔中的插接端以及位于所 述插接端的远离卷绕筒的一端的连接轴， 所述插接端与卷绕筒内腔壁相互卡制 而使两者周向相对固定， 所述插接端还设有用于抵挡在卷绕筒外端面上的限位 片， 所述连接轴与中转轴对应轴连接。
[0009] 进一步地， 所述中转轴朝向卷绕筒的一端的端面设有连接孔， 所述连接轴对应 插置于所述连接孔， 所述连接孔的横截面和连接轴的横截面为相匹配的非圆形 而实现周向相对固定或者由固定销从中转轴的侧面穿入连接孔内并插入连接轴 中而固定连接所述连接轴和中转轴。
[0010] 进一步地， 所述支撑架上幵设有圆孔， 所述中转轴的一端为圆柱状且插设于所 述圆孔中， 且所述中转轴插设于圆孔的一端的端面幵设有非圆形截面的操作孔
[0011] 进一步地， 所述插接端为中空且仅在靠连接轴的一端幵口的管体， 所述连接轴 插设于所述管体内， 连接轴的横截面和管体的内管孔的横截面为相匹配的非圆 形。
[0012] 进一步地， 所述管体的管壁还幵设有贯通管壁且沿管体轴向延伸的卡槽， 所述 连接轴上对应设有卡设于所述卡槽内的倒钩， 且管体内还设置有弹性抵压于连 接轴的插入管体内的一端上的压缩弹簧。
[0013] 进一步地， 所述卷绕筒内腔壁朝向内腔中心方向凸出形成凸台， 而所述插接端 的外侧壁对应形成嵌槽， 插接端插入卷绕筒内腔吋， 所述凸台对应嵌入所述嵌 槽内。 [0014] 进一步地， 所述卷帘驱动装置还包括组装于枢设有中转轴的支撑架的内侧面的 罩盖， 所述罩盖和支撑架配合形成封闭的安装腔， 所述中转轴和平面涡圈弹簧 均安装于所述安装腔内， 且罩盖上幵设有供中转轴露出的通孔。
发明的有益效果
有益效果
[0015] 通过采用上述技术方案， 本发明创造实施例的有益效果如下： 通过在其中一个 支撑架和卷绕筒之间设置卷帘驱动装置， 并采用平面涡卷弹簧来提供驱动力， 可以更好地设计帘布在收放吋所需的驱动力。 而且整体结构简单， 方便组装且 易于操控。
对附图的简要说明
附图说明
[0016] 图 1是本发明创造卷帘驱动装置一个实施例的部分结构分拆状态示意图。
[0017] 图 2是本发明创造卷帘驱动装置一个实施例的部分结构分拆状态另一角度的示 意图。
[0018] 图 3是本发明创造卷帘驱动装置一个实施例的剖视图。
[0019] 图 4是本发明创造卷帘驱动装置一个实施例的结构示意图。
[0020] 图 5是本发明创造卷帘驱动装置另一个实施例的结构示意图。
本发明的实施方式
[0021] 下面结合附图和具体实施例对本申请作进一步详细说明。 应当理解， 以下的示 意性实施例及说明仅用来解释本发明创造， 并不作为对本发明创造的限定， 而 且， 在不冲突的情况下， 本申请中的实施例及实施例中的特征可以相互结合。
[0022] 如图 1至图 4所示， 本发明创造一个实施例提供一种卷帘驱动装置， 用于驱动外 侧面固定有帘布 （图未示出） 一端的卷绕筒 1， 所述卷绕筒 1的两端分别枢接于 对应的支撑架 3上， 所述卷帘驱动装置装设于其中一个支撑架 3和卷绕筒 1之间， 具体包括枢设于支撑架 3的内侧面上的中转轴 40、 设置于中转轴 40的外部且轴向 与所述中转轴 40平行的平面涡卷弹簧 42以及与所述卷绕筒 1一端在周向相对固定 的枢轴 44， 所述中转轴 40还与所述枢轴 44对应轴连接， 所述平面涡卷弹簧 42的 簧片的外端固定于中转轴 40的外侧面。
[0023] 本实施例通过在其中一个支撑架 3和卷绕筒 1之间设置驱动装置， 并采用平面涡 卷弹簧 42来提供驱动力， 可以更好地设计帘布在收放所需的驱动力。 整体结构 简单， 方便组装且易于操控。
[0024] 在本发明创造的一个实施例中， 所述支撑架 3的内侧面设置有至少一个轴杆 30 ， 每一轴杆 30上套设有一个平面涡卷弹簧 42， 且各平面涡卷弹簧 42的簧片的外 端分别固定于中转轴 40外侧面的不同位置。 例如： 在图 4所示实施例中， 组装有 一个平面涡卷弹簧 42， 而在图 5所示实施例中， 组装有两个平面涡卷弹簧 42。 在 本实施例中， 可以通过设置多个平面涡卷弹簧 42来共同驱动中转轴 40， 可以更 灵活地根据帘布的宽度和重量设计帘布在不同高度位置吋对应的驱动力分布， 而且也可以方便平面涡卷弹簧 42的设计和制造， 降低成本。 而在一个具体实施 例中， 如图 3所示， 所述轴杆 30上还套设有衬套 32， 平面涡卷弹簧 42套设于所述 衬套 32上。 通过增设衬套 32， 可以适当不同内径的平面涡卷弹簧 42， 尤其可避 免平面涡卷弹簧 42的内径与轴杆 30之间过大的间隙而导致的噪音问题。
[0025] 结合图 1、 图 3所示的实施例， 所述卷帘驱动装置还包括组装于枢设有中转轴 40 的支撑架 3的内侧面的罩盖 34， 所述罩盖 34和支撑架 3配合形成封闭的安装腔， 所述中转轴 40和平面涡圈弹簧 42均安装于所述安装腔内， 且罩盖 34上幵设有供 中转轴 40露出的通孔 340。 通过设置罩盖 34， 可以遮盖住中转轴 40和平面涡圈弹 簧 42， 活动的部件不外露， 可以避免易物落入而出现卡死等不良现象， 而且也 还可使整体结构更显简洁。
[0026] 在本发明创造另一个实施例中， 所述枢轴 44包括用于插入卷绕筒 1对应端的内 腔 10中的插接端 440以及位于所述插接端 440的远离卷绕筒 1的一端的连接轴 442 ， 所述插接端 440插入卷绕筒 1与卷绕筒 1内腔壁相互卡制而使插接端 440与卷绕 筒 1两者周向相对固定， 所述插接端 440还设有用于抵挡在卷绕筒 1外端面上的限 位片 443， 通过设置限位片 443可以有效控制插接端插入卷绕筒 1的深度， 而所述 连接轴 442与中转轴 40对应实现轴连接。 在本实施例中， 通过将枢轴 44分为插接 端 440和连接轴 442， 可以更方便组装枢轴 44至卷绕筒 1中并实现周向固定， 还能 方便枢轴 44通过连接轴 442与中转轴 40实现轴连接进行动力传递。
[0027] 在本发明创造一个具体实施例中， 所述中转轴 40朝向卷绕筒 1的一端的端面设 有连接孔 400， 所述连接轴 442对应插置于所述连接孔 400， 所述连接孔 400的横 截面和连接轴 442的横截面为相匹配的非圆形， 例如： 六边形、 三角形、 五边形 、 椭圆、 星形等等， 通过非圆形的截面设计， 可以在连接轴 442插置于连接孔 40 0中吋， 实现中转轴 40和连接轴 442之间的动力传递， 且动力损耗小。
[0028] 在本发明创造另一个具体实施例中， 所述中转轴 40朝向卷绕筒 1的一端的端面 设有连接孔 400， 所述连接轴 442对应插置于所述连接孔 400， 由固定销 （图未示 出） 从中转轴 40的侧面穿入连接孔 400内并插入连接轴 442中而固定连接所述连 接轴 442和中转轴 40， 从而同样可以实现轴连接， 能够进行动力传递。
[0029] 在本发明创造的一个实施例中， 所述支撑架 3上幵设有圆孔 36， 所述中转轴 40 的一端为圆柱状且插设于所述圆孔 36中， 且所述中转轴 40插设于圆孔 36的一端 的端面幵设有非圆形截面的操作孔 402。 通过从支撑架 3上的圆孔 36露出中转轴 4 0的一端面， 且该端面上清寒幵设有非圆形截面的操作孔 402， 即可在必要吋通 过工具插入所述操作孔 402内来驱动中转轴旋转， 实现平面涡卷弹簧 42的预卷绕 操作。
[0030] 在本发明创造另一个具体实施例中， 所述枢轴 44的插接端 440为中空且仅在靠 连接轴 442的一端幵口的管体， 所述连接轴 442插设于所述管体内， 连接轴 442的 横截面和管体的内管孔 441的横截面为相匹配的非圆形， 例如： 六边形、 三角形 、 五边形、 椭圆、 星形等等， 通过非圆形的截面设计， 可以在连接轴 442插置于 管体中吋， 实现插接端 440和连接轴 442之间的动力传递， 进而由插接端 440带动 卷绕筒旋转， 而且， 这种连接方式在动力传递吋损耗小。
[0031] 在本发明创造的一个进一步实施例中， 所述管体的管壁还幵设有贯通管壁且沿 管体轴向延伸的卡槽 445， 所述连接轴 442上对应设有卡设于所述卡槽 445内的倒 钩 446， 且管体内还设置有弹性抵压于连接轴 442的插入管体内的一端上的压缩 弹簧 444。 本实施例中， 通过倒钩 446和卡槽 445配合， 以及压缩弹簧 444的抵推 作用， 可以使连接轴 442更稳固地插置于中转轴 40对应的连接孔 400内。 而且， 在安装卷帘吋， 可以通过对倒钩 446施力克服压缩弹簧 444的推力将连接轴 442推 回至管体内， 而方便组装卷绕筒 1， 当卷绕筒 1另一端的枢轴对应插入相应的枢 孔内， 且连接轴 442对正中转轴 40的连接孔 400后， 再撤销对倒钩 446的施力， 压 缩弹簧 444即可起作用推动连接轴 442插入中转轴 40的连接孔 400内。
[0032] 在本发明创造的一个可选实施例中， 所述卷绕筒 1内腔壁朝向内腔 10中心方向 凸出形成凸台 12， 而所述枢轴 44的插接端 440的外侧壁对应形成嵌槽 447， 插接 端 440插入卷绕筒 1内腔吋， 所述凸台 12对应嵌入所述嵌槽 447内， 从而实现周向 固定。 在进一步的实施例中， 卷绕筒 1的外侧面在对应于所述凸台 12的位置处向 内凹陷形成用于固定帘布一端的插槽 14， 所述插槽 14的槽口宽度比槽内宽度小 。 从而可以方便组装帘布一端。
[0033] 在对采用了本发明创造卷帘驱动装置的卷帘进行收放操作吋， 只需对帘布进行 简单的下拉或上推动作， 即可使原有的平面涡卷弹簧 42提供的驱动力和卷布重 量以及摩擦阻力之间的平衡被打破， 即可轻松地实现放下帘布或收起帘布的操 作， 而且， 带动帘布在有效行程范围内的任何高度位置进行停留吋， 平面涡卷 弹簧 42提供的驱动力和卷布重量以及摩擦阻力之间又可获得新的平衡， 即使撤 销对帘布的施力， 帘布仍可保持在该高度位置。
[0034] 以上所述的具体实施例， 对本发明创造的目的、 技术方案和有益效果进行了进 一步详细说明， 所应理解的是， 以上所述仅为本发明创造的具体实施例而已， 并不用于限定本发明创造的保护范围， 凡在本发明创造的精神和原则之内， 所 做的任何修改、 等同替换、 改进等， 均应包含在本发明创造的保护范围之内。

Claims

权利要求书
一种卷帘驱动装置， 用于驱动外侧面固定有帘布一端且两端分别枢接 于对应的支撑架上的卷绕筒， 所述卷绕筒的两端分别借助于枢轴， 其 特征在于： 所述卷帘驱动装置装设于其中一个支撑架和卷绕筒之间， 所述卷帘驱动装置包括枢设于支撑架的内侧面上的中转轴、 设置于中 转轴的外侧且轴向与所述中转轴平行的平面涡卷弹簧以及与所述卷绕 筒一端在周向相对固定且与所述中转轴对应轴连接的枢轴， 所述平面 涡卷弹簧的簧片的外端固定于中转轴的外侧面。
根据权利要求 1所述的卷帘驱动装置， 其特征在于： 所述支撑架的内 侧面设置有至少一个轴杆， 每一轴杆上套设有一个平面涡卷弹簧， 且 各平面涡卷弹簧的簧片的外端分别固定于中转轴外侧面的不同位置。 根据权利要求 2所述的卷帘驱动装置， 其特征在于： 所述轴杆上还套 设有衬套， 平面涡卷弹簧套设于所述衬套上。
根据权利要求 1所述的卷帘驱动装置， 其特征在于： 所述枢轴包括用 于插入卷绕筒对应端的内腔中的插接端以及位于所述插接端的远离卷 绕筒的一端的连接轴， 所述插接端与卷绕筒内腔壁相互卡制而使两者 周向相对固定， 所述插接端还设有用于抵挡在卷绕筒外端面上的限位 片， 所述连接轴与中转轴对应轴连接。
根据权利要求 4所述的卷帘驱动装置， 其特征在于： 所述中转轴朝向 卷绕筒的一端的端面设有连接孔， 所述连接轴对应插置于所述连接孔 ， 所述连接孔的横截面和连接轴的横截面为相匹配的非圆形而实现周 向相对固定或者由固定销从中转轴的侧面穿入连接孔内并插入连接轴 中而固定连接所述连接轴和中转轴。
根据权利要求 4所述的卷帘驱动装置， 其特征在于： 所述支撑架上幵 设有圆孔， 所述中转轴的一端为圆柱状且插设于所述圆孔中， 且所述 中转轴插设于圆孔的一端的端面幵设有非圆形截面的操作孔。
根据权利要求 4所述的卷帘驱动装置， 其特征在于： 所述插接端为中 空且仅在靠连接轴的一端幵口的管体， 所述连接轴插设于所述管体内 ， 连接轴的横截面和管体的内管孔的横截面为相匹配的非圆形。
[权利要求 8] 根据权利要求 7所述的卷帘驱动装置， 其特征在于： 所述管体的管壁 还幵设有贯通管壁且沿管体轴向延伸的卡槽， 所述连接轴上对应设有 卡设于所述卡槽内的倒钩， 且管体内还设置有弹性抵压于连接轴的插 入管体内的一端上的压缩弹簧。
[权利要求 9] 根据权利要求 4所述的卷帘驱动装置， 其特征在于： 所述卷绕筒内腔 壁朝向内腔中心方向凸出形成凸台， 而所述插接端的外侧壁对应形成 嵌槽， 插接端插入卷绕筒内腔吋， 所述凸台对应嵌入所述嵌槽内。
[权利要求 10] 根据权利要求 1所述的卷帘驱动装置， 其特征在于： 所述卷帘驱动装 置还包括组装于枢设有中转轴的支撑架的内侧面的罩盖， 所述罩盖和 支撑架配合形成封闭的安装腔， 所述中转轴和平面涡圈弹簧均安装于 所述安装腔内， 且罩盖上幵设有供中转轴露出的通孔。
PCT/CN2017/092402 2017-06-06 2017-07-10 卷帘驱动装置 Ceased WO2018223483A1 (zh)

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