WO2021109766A1 - 一种卷帘平衡调节器及其组成的卷帘 - Google Patents

一种卷帘平衡调节器及其组成的卷帘 Download PDF

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Publication number
WO2021109766A1
WO2021109766A1 PCT/CN2020/125368 CN2020125368W WO2021109766A1 WO 2021109766 A1 WO2021109766 A1 WO 2021109766A1 CN 2020125368 W CN2020125368 W CN 2020125368W WO 2021109766 A1 WO2021109766 A1 WO 2021109766A1
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WO
WIPO (PCT)
Prior art keywords
roller blind
friction
friction cylinder
rod
cylinder
Prior art date
Application number
PCT/CN2020/125368
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English (en)
French (fr)
Inventor
邱永忠
Original Assignee
广州市珏饰窗饰科技有限公司
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Publication date
Application filed by 广州市珏饰窗饰科技有限公司 filed Critical 广州市珏饰窗饰科技有限公司
Priority to US17/416,414 priority Critical patent/US11692392B2/en
Publication of WO2021109766A1 publication Critical patent/WO2021109766A1/zh

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    • 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
    • E06B9/62—Counterweighting arrangements
    • 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
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/90—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for immobilising the closure member in various chosen positions
    • 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
    • E06B9/56—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

Definitions

  • the invention relates to a roller blind balance adjuster and a roller blind composed of the roller blind in the technical field of household articles.
  • Bead roller blinds are more and more used by people, but children often bring some safety hazards due to beads.
  • bead roller blinds are difficult to install and inconvenient to operate, but they cannot increase the cost to install electric roller blinds.
  • the hand-pushing roller blind system is realized under the condition of spring pretension.
  • the elastic force of the spring on the roller shutter rod is different. In long-term use, each is zero.
  • the transmission force of the accessories changes, the torque will be difficult to balance, which will seriously affect the use of the roller blind. Therefore, the current roller shutter systems on the market must be specially designed for different widths, heights, and even different fabrics. This will cause a large number of specifications, an increase in inventory, and inconvenience in production.
  • the purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide a roller blind balance adjuster and a roller blind composed of it, which can dynamically balance the torque generated by the return spring.
  • a roller blind balance adjuster which includes a stepped shaft, the side of the small-diameter section of the stepped shaft is provided with an external thread; a friction cylinder for connecting with the roller blind rod, so The stepped shaft penetrates the friction cylinder, the friction cylinder is provided with internal threads, the inner side of the friction cylinder is threadedly connected with the small-diameter section of the stepped shaft, and a friction layer is provided between the friction cylinder and the large-diameter section of the stepped shaft.
  • the stepped shaft includes a limiting screw and a mandrel
  • the mandrel is provided with a mandrel through hole in the axial direction
  • the limiting screw penetrates and is fixed on the mandrel Through hole.
  • the inner side of the friction cylinder is provided with a stepped portion
  • the mandrel is located in the large-diameter section in the friction cylinder
  • the internal thread is arranged on the small-diameter section in the friction cylinder
  • a first ratchet tooth is provided on the first end surface of the mandrel
  • a second ratchet tooth capable of meshing with the first ratchet tooth is provided on the shoulder of the stepped portion of the friction cylinder.
  • a third ratchet tooth is provided on the end surface of the friction cylinder, and a fourth ratchet tooth capable of meshing with the third ratchet tooth is provided on the limit screw.
  • annular protrusion is provided on the outer side of the second end of the mandrel, and at least one countersunk screw hole is provided on the annular protrusion.
  • the shaft is perpendicular to the limit screw, and the bolt is inserted into the countersunk screw hole and abuts against the limit screw.
  • a roller blind which includes a roller blind rod, a curtain cloth, two installation codes, and a roller blind balance adjuster, the curtain cloth is wound on the roller blind rod, and the roller blind rod
  • the two ends of the step shaft are installed on the installation code
  • the roller shutter rod is provided with a return spring
  • the friction cylinder is connected with the roller shutter rod
  • one end of the stepped shaft is fixed on one of the installation codes.
  • a roller blind balance adjuster which includes a fixing member including a sleeve and a central rod fixed in the sleeve, the central rod being along the axial direction of the sleeve Arranged in a direction, the sleeve and the center rod form a space that can accommodate the insertion of the friction cylinder; the friction cylinder for connecting with the roller blind rod, the friction cylinder is inserted into the space between the sleeve and the center rod, the center The rod penetrates the friction cylinder, the friction cylinder has an inner side surface and an outer side surface, one of the side surfaces of the friction cylinder is threadedly connected with the fixing member, and a friction layer is provided between the other side surface of the friction cylinder and the fixing member
  • the center rod is provided with an external thread
  • the inner side of the friction cylinder is provided with an internal thread
  • the friction cylinder is threadedly connected to the center rod
  • the friction layer is located at Between the outer side of the friction cylinder and the sleeve.
  • the inner side of the sleeve is provided with internal threads
  • the outer side of the friction cylinder is provided with external threads
  • the friction cylinder is threadedly connected to the sleeve
  • the friction layer Located between the inner side of the friction cylinder and the center rod.
  • a roller blind which includes a roller blind rod, a curtain fabric, and two installation codes for a roller blind balance adjuster, the curtain fabric is wound on the roller blind rod, and the roller blind rod
  • the two ends of the roller blind are installed on the installation code
  • the roller blind rod is provided with a return spring
  • the friction cylinder is connected with the roller blind rod
  • one end of the fixing member is fixed on one of the installation codes.
  • the invention can better balance the torque of the return spring, the friction force between the friction cylinder and the friction layer can dynamically compensate the torque difference of the return spring, and the use effect is good.
  • the beneficial effects of the present invention are:
  • the friction cylinder moves axially along the limit screw while rotating, thereby increasing or decreasing the friction force between the friction cylinder and the friction layer.
  • the friction cylinder can increase or decrease the friction force between it and the friction layer along with the change of the torque of the return spring, so as to achieve the dynamic balance of the return spring.
  • the friction cylinder moves along the axial direction of the fixed part while rotating, thereby increasing or decreasing the friction force between the friction cylinder and the friction layer.
  • the friction cylinder can increase or decrease the friction between the friction cylinder and the friction layer as the torque of the return spring changes, so as to achieve the function of the dynamic balance return spring.
  • Figure 1 is a schematic structural diagram of a roller blind balance adjuster in the first embodiment of the present invention
  • Figure 2 is an exploded view of the roller blind balance adjuster in the first embodiment of the present invention
  • Figure 3 is a front view of the friction cylinder in the first embodiment of the present invention.
  • Figure 4 is a front cross-sectional view of the roller blind balance adjuster in the first embodiment of the present invention.
  • Figure 5 is a front cross-sectional view of the roller blind balance adjuster in the second embodiment of the present invention.
  • Fig. 6 is a front cross-sectional view of the roller blind balance adjuster in the third embodiment of the present invention.
  • orientation description involved such as up, down, front, back, left, right, etc. indicates the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, but In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be configured and operate in a specific orientation, and therefore cannot be understood as a limitation to the present invention.
  • the roller blind balance adjuster in this embodiment includes a limit screw 10, a core shaft 20 and a friction cylinder 30.
  • the mandrel 20 is provided with a mandrel through hole along the axial direction, and the limiting screw 10 penetrates and is fixed in the mandrel through hole.
  • the outer side of the second end of the mandrel 20 is provided with an annular protrusion 22, at least one countersunk screw hole 23 is provided on the annular protrusion 22, and the hole axis of the countersunk screw hole 23 is perpendicular to the limiting screw 10.
  • the annular protrusion 22 can be integrally formed with the mandrel 20.
  • the bolt is screwed into the countersunk screw hole 23, and the bottom end of the bolt abuts against the limiting screw 10, thereby fixing the relative position of the mandrel 20 and the limiting screw 10.
  • the mandrel 20 is inserted into the friction cylinder 30.
  • the inner side of the friction cylinder 30 is provided with a stepped part, the mandrel 20 is located in the large diameter section of the friction cylinder 30, and the small diameter section of the friction cylinder 30 is provided with internal threads.
  • the barrel 30 is threadedly connected with the limiting screw 10.
  • a friction layer is provided between the core shaft 20 and the large-diameter section of the friction cylinder 20.
  • the friction layer includes at least one friction plate 40.
  • the friction plates can be appropriately increased or decreased to ensure It can effectively balance the torque of the return spring.
  • the friction plates 40 may be long friction plates, the number is three or more, and the friction plates 40 are circumferentially distributed on the outside of the mandrel 20, and the friction plates 40 are equally spaced.
  • the friction plate 40 may also be a cylindrical friction plate, and the cylindrical friction plate is sleeved on the outside of the mandrel 20.
  • the friction layer can also be directly integrally formed with the outer surface of the mandrel 20.
  • a first ratchet 21 is provided on the first end surface of the mandrel 20, and a second ratchet 31 capable of meshing with the first ratchet 21 is provided on the shoulder of the stepped portion of the friction cylinder 30.
  • the first ratchet 21 on the mandrel 20 engages with the second ratchet 31 of the friction cylinder 30, so as to prevent the curtain from continuing to descend or even detach from the roller blind rod.
  • the end surface of the friction cylinder 30 is provided with a third ratchet tooth 32, and the limiting screw 10 is provided with a fourth ratchet tooth 11 capable of meshing with the third ratchet tooth 32.
  • the friction cylinder 30 moves to engage the third ratchet tooth 31 with the fourth ratchet tooth on the limiting screw 10, thereby restricting the roller shutter rod 30 from continuing to rotate.
  • the outer surface of the friction cylinder 30 is provided with a length scale along the axial direction.
  • the friction cylinder 30 is provided with an outer cover 50, the outer cover 50 is sleeved on the outer side of the mandrel 20 and the friction cylinder 30, and the outer cover 50 is fixed on the annular protrusion 22 of the mandrel 20.
  • At least two convex ribs 34 are provided on the outer side of the friction cylinder 30, and the convex ribs 34 are arranged along the length direction of the friction cylinder 30.
  • At least one oil groove is provided inside the mandrel 20.
  • the oil groove may be an annular groove, and the annular oil groove is circumferentially arranged inside the mandrel 20.
  • a plurality of annular oil grooves are arranged at intervals along the axial direction of the mandrel 20.
  • the oil groove may also be a straight groove.
  • a plurality of straight grooves are arranged along the axial direction of the mandrel 20.
  • Lubricating oil is injected into the oil groove so that there is lubricating oil between the mandrel 20 and the limiting screw 10, thereby reducing the noise generated by the collision of the mandrel 20 and the limiting screw.
  • roller blind balance adjuster when the roller shutter rod rotates, the roller shutter rod drives the friction cylinder 30 to rotate, and the friction cylinder 30 moves along the limit screw 10, so that the friction cylinder 30 contacts the friction plate 40 on the core shaft 20 The area changes, so that the frictional force between the friction cylinder 30 and the mandrel 20 changes to dynamically adapt to the torque of the roller shutter spring.
  • the roller blind in this embodiment includes a roller blind rod, a curtain cloth, two installation codes, and a roller blind balance adjuster.
  • the curtain cloth is wound on the roller blind rod, and both ends of the roller blind rod are installed on the installation codes.
  • a return spring is arranged in the roller shutter rod, one end of the return spring is connected with the roller shutter rod, and the other end of the return spring is connected with one of the installation codes.
  • the friction cylinder 30 is connected with the roller blind rod, and one end of the limit screw 10 or the stepped shaft is fixed on one of the installation codes.
  • the operating principle of this roller shutter After installing the roller shutter rod, curtain fabric and roller shutter balance adjuster, pre-tighten the return spring, and install the roller shutter rod between the two installation codes.
  • the torque of the return spring is equal to the gravitational force of the curtain fabric and the lower rail plus the frictional force between the friction cylinder 30 and the friction plate 40.
  • the roller shutter rod While pulling down the curtain, the roller shutter rod rotates and drives the friction cylinder 30.
  • the friction cylinder 30 rotates while moving axially along the limit screw 10, and the contact area between the friction cylinder 30 and the friction plate on the mandrel 20 increases, and The frictional force between the friction cylinder 30 and the friction plate 40 increases.
  • the weight of the hanging part of the curtain increases, and the torque of the return spring increases.
  • the friction force between the friction cylinder 20 and the friction plate 40 increases to resist the roller shutter rod. Movement trend, so that the curtain can stop in the position required by the user.
  • the first ratchet teeth 21 mesh with the second ratchet teeth 31 to prevent the roller shutter rod from continuing to rotate and the curtain cloth falls off from the roller shutter rod.
  • the torque of the return spring decreases, and the frictional force between the friction cylinder 30 and the mandrel 20 also decreases.
  • the third ratchet tooth 32 meshes with the fourth ratchet tooth 11, and the roller shutter rod no longer rotates.
  • the frictional force between the friction cylinder 30 and the friction plate 40 can always dynamically compensate for the torque generated by the retracting and unwinding of the curtain and the torque difference of the return spring. Very good balance.
  • the roller blind balance adjuster in this embodiment differs from the first embodiment only in that the core shaft 20 and the limit screw 10 together form an integral stepped shaft.
  • the small diameter end of the stepped shaft is provided with threads
  • the friction cylinder 30 is threadedly connected with the small diameter section of the stepped shaft
  • a friction layer is provided between the friction cylinder 30 and the large diameter section of the stepped shaft.
  • the roller blind balance adjuster in this embodiment includes a fixing member 60 and a friction cylinder 30 for connecting with the roller blind rod.
  • the fixing member 60 includes a sleeve 62 and a central rod 61 fixed in the sleeve 62.
  • the central rod 61 is arranged along the axial direction of the sleeve 62.
  • a space is formed between the sleeve 62 and the central rod 61 to accommodate the insertion of the friction cylinder 30.
  • the central rod 61 and the sleeve 62 may be integrally formed.
  • the friction cylinder 30 has an inner side surface and an outer side surface.
  • the friction cylinder 30 is threadedly connected with the fixing member 60, and a friction layer is provided between the other side surface of the friction cylinder 30 and the fixing member 60.
  • the friction cylinder 30 is inserted into the space between the sleeve 62 and the center rod 61, and the center rod 61 penetrates the friction cylinder 30.
  • the center rod 61 is provided with external threads
  • the inner side of the friction cylinder 30 is provided with internal threads.
  • the friction cylinder 30 is threadedly connected with the center rod 61.
  • the friction cylinder 30 can move along the center rod 61, and the friction layer is located in the friction cylinder.
  • the friction layer includes at least one friction plate 40.
  • the friction plates 40 may be long friction plates, the number is three or more, and the friction plates 40 are circumferentially distributed on the outside of the mandrel 20, and the friction plates 40 are equally spaced.
  • the friction plate 40 may also be a cylindrical friction plate, and the cylindrical friction plate is sleeved on the outside of the friction cylinder 30.
  • the friction layer may be directly integrally formed with the outer surface of the friction cylinder 30, or alternatively, the friction layer may be integrally formed with the inner surface of the sleeve 62.
  • At least two convex ribs 34 are provided on the outer side of the friction cylinder 30, and the convex ribs 34 are arranged along the length direction of the friction cylinder 30.
  • the outer surface of the friction cylinder 30 is provided with a length scale along the axial direction.
  • An outer cover 50 is provided on the sleeve 62, and the outer cover 50 is sleeved on the outside of the sleeve 62.
  • the outer surface of the friction cylinder 30 is provided with a length scale along the axial direction.
  • At least one oil groove is provided on the inner side of the friction cylinder 30.
  • the oil groove may be an annular groove, and the annular oil groove is circumferentially arranged inside the friction cylinder 30.
  • a plurality of annular oil grooves are arranged at intervals along the axial direction of the friction cylinder 30.
  • the oil groove may also be a straight groove.
  • a plurality of straight grooves are arranged along the axial direction of the friction cylinder 30. Lubricating oil is injected into the oil groove so that there is lubricating oil between the friction cylinder 30 and the center rod 61, thereby reducing the noise generated by the collision of the friction cylinder 30 and the center rod 61.
  • roller blind balance adjuster when the roller blind rod rotates, the roller blind rod drives the friction cylinder 30 to rotate, and the friction cylinder 30 moves along the center rod 61, so that the friction cylinder 30 contacts the friction plate 40 inside the sleeve 62 The area changes, so that the frictional force between the friction cylinder 30 and the friction plate 40 changes to dynamically adapt to the torque of the roller shutter spring.
  • the outer side of the friction cylinder 30 is threadedly connected to the sleeve 62, the inner side of the sleeve 62 is provided with internal threads, and the outer side of the friction cylinder 30 is provided with external threads, and the friction cylinder 30 Threaded connection with the sleeve 62, the friction layer is located between the inner surface of the friction cylinder 30 and the central rod 61, preferably, the friction plate 40 is fixed on the central rod 61.
  • the rest of the structure is the same as described above.
  • the roller blind in this embodiment includes a roller blind rod, a curtain cloth, two installation codes, and a roller blind balance adjuster.
  • the curtain cloth is wound on the roller blind rod, and both ends of the roller blind rod are installed on the installation code.
  • the roller blind rod is provided with a return spring, the friction cylinder 30 is connected with the roller blind rod, and one end of the fixing member 60 is fixed on one of the installation codes.
  • the operating principle of this roller shutter After installing the roller shutter rod, curtain fabric and roller shutter balance adjuster, pre-tighten the return spring, and install the roller shutter rod between the two installation codes.
  • the torque of the return spring is equal to the gravitational force of the curtain fabric and the lower rail plus the frictional force between the friction cylinder 30 and the friction plate 40.
  • the roller shutter rod While pulling down the curtain, the roller shutter rod rotates and drives the friction cylinder 30.
  • the friction cylinder 30 moves axially along the central rod 61 while rotating, and the contact area between the friction cylinder 30 and the friction plate 40 inside the sleeve 62 increases, namely The frictional force between the friction cylinder 30 and the friction plate 40 increases.
  • the frictional force between the friction cylinder 30 and the friction plate 40 can always dynamically compensate for the torque generated by the retracting and unwinding of the curtain and the torque difference of the return spring. Very good balance.

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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)
  • Curtains And Furnishings For Windows Or Doors (AREA)

Abstract

一种卷帘平衡调节器及其组成的卷帘，其中，卷帘平衡调节器包括阶梯轴和用于与卷帘杆连接的摩擦筒(30)，阶梯轴的小径段侧面上设有外螺纹，阶梯轴贯穿摩擦筒(30)，摩擦筒(30)内设有内螺纹，摩擦筒(30)内侧与阶梯轴的小径段螺纹连接，摩擦筒(30)与阶梯轴的大径段之间设有摩擦层；由该卷帘平衡调节器组成的卷帘，还包括卷帘杆、帘布、两个安装码，帘布卷绕在卷帘杆上，卷帘杆的两端安装在安装码上，卷帘杆内设有复位弹簧，摩擦筒(30)与卷帘杆连接，阶梯轴的一端固定在其中一个安装码上。该卷帘平衡调节器在卷帘杆转动时摩擦筒能随着复位弹簧的扭矩变化而增加或减小其与摩擦层之间的摩擦力，从而动态平衡复位弹簧的扭矩。

Description

一种卷帘平衡调节器及其组成的卷帘 技术领域
本发明涉及家居用品技术领域中的一种卷帘平衡调节器及其组成的卷帘。
背景技术
拉珠卷帘越来越多被人们使用，但儿童经常会因为拉珠带来一些安全的隐患。在一些地方，拉珠卷帘难于安装，操作也不方便，但又不能增加成本安装电动卷帘，更有在一些地方更没有电源供应。为了解决这些问题，对手推卷帘系统的需求量就越来越大。手推卷帘系统都在在弹簧预紧力的情况下实现的，在使用的过程中，随着帘体的上升或下降，弹簧对卷帘杆的弹力不同，在长久的使用中，各零配件的传动力出现变化时，扭矩将很难平衡，严重影响卷帘的使用。因此目前市面的卷帘系统，必须根据不同的宽度、高度、乃至不同的面料特制弹簧系统，这样会造成规格众多，库存增加，生产不方便。
发明内容
本发明的目的在于至少解决现有技术中存在的技术问题之一，提供一种卷帘平衡调节器及其组成的卷帘，其能动态平衡复位弹簧所产生的扭矩。
根据本发明的第一方面实施例，提供一种卷帘平衡调节器，其包括阶梯轴，所述阶梯轴的小径段侧面上设有外螺纹；用于与卷帘杆连接的摩擦筒，所述阶梯轴贯穿摩擦筒，所述摩擦筒内设有内螺纹，所述摩擦筒的内侧与阶梯轴的小径段螺纹连接，所述摩擦筒与阶梯轴的大径段之间设有摩擦层。
根据本发明第一方面实施例，进一步地，所述阶梯轴包括限位螺杆和芯轴，所述芯轴沿轴向方向设有芯轴通孔，所述限位螺杆贯穿且固定在芯轴通孔中。
根据本发明第一方面实施例，进一步地，所述摩擦筒的内侧设有阶梯部，所述芯轴位于摩擦筒内的大径段中，所述内螺纹设置在摩擦筒内的小径段上，所述芯轴的第一端端面上设有第一棘齿，所述摩擦筒的阶梯部台肩上设有能与第一棘齿啮合的第二棘齿。
根据本发明第一方面实施例，进一步地，所述摩擦筒的端面上设有第三棘齿，所述限位螺杆上设有能与第三棘齿啮合的第四棘齿。
根据本发明第一方面实施例，进一步地，所述芯轴的第二端外侧设有环形凸起，所述环形凸起上设有至少一个沉头螺孔，所述沉头螺孔的孔轴垂直于限位螺杆，螺栓插入沉头螺孔后与限位螺杆抵接。
根据本发明第一方面实施例，提供一种卷帘，其包括卷帘杆、帘布、两个安装码以及卷帘平衡调节器，所述帘布卷绕在卷帘杆上，所述卷帘杆的两端安装在安装码上，所述卷帘杆内设有复位弹簧，所述摩擦筒与卷帘杆连接，所述阶梯轴的一端固定在其中一个安装码上。
根据本发明第二方面实施例，提供一种卷帘平衡调节器，其包括固定件，所述固定件包括套筒和固定在套筒内的中心杆，所述中心杆沿套筒的轴向方向布置，所述套筒与中心杆之间形成能容摩擦筒插入的空间；用于与卷帘杆连接的摩擦筒，所述摩擦筒插入套筒与中心杆之间的空间，所述中心杆贯穿摩擦筒，所述摩擦筒具有内侧面和外侧面，所述摩擦筒的其中一个侧面与固定件螺纹连接，所述摩擦筒的另一个侧面与固定件之间设有摩擦层
根据本发明第二方面实施例，进一步地，所述中心杆上设有外螺纹，所述摩擦筒的内侧面上设有内螺纹，所述摩擦筒与中心杆螺纹连接，所述摩擦层位于摩擦筒的外侧面与套筒之间。
根据本发明第二方面实施例，进一步地，所述套筒的内侧设有内螺纹，所述摩擦筒的外侧面上设有外螺纹，所述摩擦筒与套筒螺纹连接，所述摩擦层位于摩擦筒的内侧面与中心杆之间。
根据本发明第二方面实施例，提供一种卷帘，其包括卷帘杆、帘布、两个安装码以卷帘平衡调节器，所述帘布卷绕在卷帘杆上，所述卷帘杆的两端安装在安装码上，所述卷帘杆内设有复位弹簧，所述摩擦筒与卷帘杆连接，所述固定件的一端固定在其中一个安装码上。
本发明能更好地平衡复位弹簧的扭矩，摩擦筒与摩擦层之间的摩擦力能动态地补偿复位弹簧的扭矩差，使用效果好。本发明的有益效果是：
一、通过使卷帘杆带动摩擦筒转动，摩擦筒在转动的同时沿限位螺杆轴向移动，从而使摩擦筒与摩擦层之间的摩擦力增大或减小。当卷帘杆转动，摩擦筒能随着复位弹簧的扭矩变化而增加或减小其与摩擦层之间的摩擦力，以达到动态平衡复位弹簧的作用。
二、通过使卷帘杆带动摩擦筒转动，摩擦筒在转动的同时沿固定件的轴向方向移动，从而使摩擦筒与摩擦层之间的摩擦力增大或减小。当卷帘杆转动，摩擦筒能随复位弹簧的扭矩变化而增减摩擦筒与摩擦层之间的摩擦力，以达到动态平衡复位弹簧的作用。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单说明。显然，所描述的附图只是本发明的一部分实施例，而不是全部实施例，本领域的技术人员在不付出创造性劳动的前提下，还可以根据这些附图获得其他设计方案和附图。
图1是本发明实施例一中卷帘平衡调节器的结构示意图；
图2是本发明实施例一中卷帘平衡调节器的爆炸图；
图3是本发明实施例一中摩擦筒的正视图；
图4是本发明实施例一中卷帘平衡调节器的正剖视图；
图5是本发明实施例二中卷帘平衡调节器的正剖视图；
图6是本发明实施例三中卷帘平衡调节器的正剖视图。
具体实施方式
本部分将详细描述本发明的具体实施例，本发明之较佳实施例在附图中示出，附图的作用在于用图形补充说明书文字部分的描述，使人能够直观地、形象地理解本发明的每个技术特征和整体技术方案，但其不能理解为对本发明保护范围的限制。
在本发明的描述中，需要理解的是，涉及到方位描述，例如上、下、前、后、左、右等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，若干的含义是一个或者多个，多个的含义是两个以上，大于、小于、超过等理解为不包括本数，以上、以下、以内等理解为包括本数。如果有描述到第一、第二只是用于区分技术特征为目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量或者隐含指明所指示的技术特征的先后关系。
本发明的描述中，除非另有明确的限定，设置、安装、连接等词语应做广义理解，所属技术领域技术人员可以结合技术方案的具体内容合理确定上述词语在本发明中的具体含义。
实施例一
参照图1～图4，本实施例中的卷帘平衡调节器，其包括限位螺杆10、芯轴20以及摩擦筒30。芯轴20沿轴向方向设有芯轴通孔，限位螺杆10贯穿芯轴通孔并在其中固定。芯轴20的第二端外侧设有环形凸起22，环形凸起22上设有至少一个沉头螺孔23，沉头螺孔23的孔轴垂直于限位螺杆10。环形凸起22可与芯轴20一体成型。将螺栓拧入沉头螺孔23中，螺栓的底端与限位螺杆10抵接，从而固定芯轴20与限位螺杆10的相对位置。芯轴20插入到摩擦筒30中，优选地，摩擦筒30的内侧设有阶梯部，芯轴20位于摩擦筒30内的大径段中，摩擦筒30的小径段上设有内螺纹，摩擦筒30与限位螺杆10螺纹连接。芯轴20与摩擦筒20的大径段之间设有摩擦层，摩擦层包括至少一片摩擦片40，针对卷帘中不同的复位弹簧、卷帘杆和帘布，可适当增减摩擦片以保证能有效平衡复位弹簧的扭矩。
进一步作为优选的实施方式，摩擦片40可为长型的摩擦片，数量为三片以上，各摩擦片 40周向分布在芯轴20的外侧，各摩擦片40等距间隔。作为同等的实施方式，摩擦片40也可以为一片圆筒形的摩擦片，圆筒形的摩擦片套设在芯轴20的外侧。另外，摩擦层也可直接与芯轴20的外侧面一体成型。
进一步作为优选的实施方式，芯轴20的第一端端面上设有第一棘齿21，摩擦筒30的阶梯部台肩上设有能与第一棘齿21啮合的第二棘齿31。当帘布完全下降时，芯轴20上的第一棘齿21与摩擦筒30的第二棘齿31啮合，从而避免帘布继续下降甚至脱离卷帘杆。相应地，摩擦筒30的端面上设有第三棘齿32，限位螺杆10上设有能与第三棘齿32啮合的第四棘齿11。当帘布完全收起时，摩擦筒30移动至使第三棘齿31与限位螺杆10上的第四棘齿啮合，从而限制卷帘杆30继续转动。
进一步作为优选的实施方式，摩擦筒30的外侧面上沿轴向方向设有长度刻度。摩擦筒30上设有外罩50，外罩50套设在芯轴20与摩擦筒30的外侧，外罩50固定在芯轴20的环形凸起22上。通过对准外罩50与摩擦筒30上的长度刻度，以确定在这一位置上，摩擦筒30与芯轴20的相对摩擦力的大小，以更好地在使用前根据不同的卷帘杆及帘布作出调整。
进一步作为优选的实施方式，摩擦筒30的外侧设有至少两条凸筋34，凸筋34沿摩擦筒30的长度方向设置。当卷帘杆转动时，卷帘杆通过凸筋34与摩擦筒30联动，从而带动摩擦筒30转动。
进一步作为优选的实施方式，所述芯轴20内侧设有至少一道油槽。油槽可以为环形槽，环形的油槽周向布置在芯轴20的内侧，优选地，多个环形的油槽沿芯轴20的轴向间隔布置。作为同等的替代实施方式，油槽也可以为直槽，优选地，多个直槽均沿芯轴20的轴向方向布置。在油槽内注入润滑油，使芯轴20与限位螺杆10之间存在润滑油，从而降低芯轴20与限位螺杆碰撞而产生的噪音。
本卷帘平衡调节器的运行原理：当卷帘杆转动时，卷帘杆带动摩擦筒30旋转，摩擦筒30沿限位螺杆10移动，从而摩擦筒30与芯轴20上摩擦片40的接触面积发生变化，从而摩擦筒30与芯轴20之间的摩擦力发生变化，以动态适应卷帘弹簧的扭矩。
本实施例中的卷帘，其包括卷帘杆、帘布、两个安装码以及卷帘平衡调节器，帘布卷绕在卷帘杆上，卷帘杆的两端安装在安装码上，所述卷帘杆内设有复位弹簧，复位弹簧的一端与卷帘杆相接，复位弹簧的另一端与其中一个安装码相接。摩擦筒30与卷帘杆连接，限位螺杆10或阶梯轴的一端固定在其中一个安装码上。
本卷帘的运行原理：将卷帘杆、帘布和卷帘平衡调节器安装好后，预紧复位弹簧，并将卷帘杆安装到两个安装码之间。复位弹簧的扭矩等于帘布及下轨的重力加上摩擦筒30与摩擦 片40之间的摩擦力。向下拉下帘布的同时，卷帘杆转动并带动摩擦筒30，摩擦筒30转动的同时沿限位螺杆10轴向移动，摩擦筒30与芯轴20上的摩擦片的接触面积增大，及摩擦筒30与摩擦片40之间的摩擦力增大。由于帘布下降时，帘布垂下部分的重力增大，且复位弹簧的扭矩增大，为了平衡复位弹簧的扭矩，因此摩擦筒20与摩擦片40之间的摩擦力增大，以抵抗卷帘杆的运动趋势，从而使帘布能停在用户所需的位置。当帘布下降到下限位时，第一棘齿21与第二棘齿31啮合，防止卷帘杆继续转动，帘布从卷帘杆上脱落。同理，当帘布上升时，复位弹簧的扭矩减小，摩擦筒30与芯轴20之间的摩擦力也减小。直至帘布到达上限位，第三棘齿32与第四棘齿11啮合，卷帘杆不再转动。在本卷帘的使用过程中，随着卷帘杆的转动，摩擦筒30与摩擦片40之间的摩擦力总能动态补偿因帘布收放而产生的扭矩以及复位弹簧的扭矩差，起到很好的平衡作用。
实施例二
参照图5，本实施例中的卷帘平衡调节器，其与实施例一的区别仅在于芯轴20与限位螺杆10共同组成一体成型的阶梯轴。阶梯轴的小径端上设有螺纹，摩擦筒30与阶梯轴的小径段螺纹连接，摩擦筒30与阶梯轴的大径段之间设有摩擦层。该设置能避免芯轴20与限位螺杆10相互碰撞而产生的磨损，简化结构。
实施例三
参照图6，本实施例中的卷帘平衡调节器，其包括固定件60和用于与卷帘杆连接的摩擦筒30。固定件60包括套筒62和固定在套筒62内的中心杆61，中心杆61沿套筒62的轴向方向布置，套筒62与中心杆61之间形成能容摩擦筒30插入的空间。可选地，中心杆61与套筒62可一体成型。摩擦筒30具有内侧面和外侧面，所述摩擦筒30的其中一个侧面与固定件60螺纹连接，所述摩擦筒30的另一个侧面与固定件60之间设有摩擦层。摩擦筒30插入套筒62与中心杆61之间的空间，中心杆61贯穿摩擦筒30。可选地，中心杆61上设有外螺纹，摩擦筒30的内侧面上设有内螺纹，摩擦筒30与中心杆61螺纹连接，摩擦筒30可沿中心杆61移动，摩擦层位于摩擦筒30的外侧面与套筒62之间。摩擦层包括至少一片摩擦片40，针对卷帘不同的复位弹簧、不同重量的卷帘杆和帘布，可适当增减摩擦片以保证能有效平衡复位弹簧的扭矩。
进一步作为优选的实施方式，摩擦片40可为长型的摩擦片，数量为三片以上，各摩擦片40周向分布在芯轴20的外侧，各摩擦片40等距间隔。作为同等的实施方式，摩擦片40也可以为一片圆筒形的摩擦片，圆筒形的摩擦片套设在摩擦筒30的外侧。另外，摩擦层也可直接与摩擦筒30的外侧面一体成型，又或者，摩擦层可与套筒62的内侧面一体成型。
进一步作为优选的实施方式，摩擦筒30的外侧设有至少两条凸筋34，凸筋34沿摩擦筒30的长度方向设置。当卷帘杆转动时，卷帘杆通过凸筋34与摩擦筒30联动，从而带动摩擦筒30转动。
进一步作为优选的实施方式，摩擦筒30的外侧面上沿轴向方向设有长度刻度。套筒62上设有外罩50，外罩50套设在套筒62的外侧。摩擦筒30的外侧面上沿轴向方向设有长度刻度，通过对准外罩50与摩擦筒30上的长度刻度，以确定在这一位置上，摩擦筒30套筒62的相对摩擦力的大小，以更好地在使用前根据不同的卷帘杆及帘布作出调整。
进一步作为优选的实施方式，所述摩擦筒30内侧设有至少一道油槽。油槽可以为环形槽，环形的油槽周向布置在摩擦筒30的内侧，优选地，多个环形的油槽沿摩擦筒30的轴向间隔布置。作为同等的替代实施方式，油槽也可以为直槽，优选地，多个直槽均沿摩擦筒30的轴向方向布置。在油槽内注入润滑油，使摩擦筒30与中心杆61之间存在润滑油，从而降低摩擦筒30与中心杆61碰撞而产生的噪音。
本卷帘平衡调节器的运行原理：当卷帘杆转动时，卷帘杆带动摩擦筒30旋转，摩擦筒30沿中心杆61移动，从而摩擦筒30与套筒62内侧的摩擦片40的接触面积发生变化，从而摩擦筒30与摩擦片40之间的摩擦力发生变化，以动态适应卷帘弹簧的扭矩。
作为上述实施方式的同等替代，可选地，摩擦筒30的外侧面与套筒62螺纹连接，套筒62的内侧设有内螺纹，摩擦筒30的外侧面上设有外螺纹，摩擦筒30与套筒62螺纹连接，摩擦层位于摩擦筒30的内侧面与中心杆61之间，优选地，摩擦片40固定在中心杆61上。其余结构同上所述。
本实施例中的卷帘，其包括卷帘杆、帘布、两个安装码以及卷帘平衡调节器，所述帘布卷绕在卷帘杆上，所述卷帘杆的两端安装在安装码上，所述卷帘杆内设有复位弹簧，所述摩擦筒30与卷帘杆连接，所述固定件60的一端固定在其中一个安装码上。
本卷帘的运行原理：将卷帘杆、帘布和卷帘平衡调节器安装好后，预紧复位弹簧，并将卷帘杆安装到两个安装码之间。复位弹簧的扭矩等于帘布及下轨的重力加上摩擦筒30与摩擦片40之间的摩擦力。向下拉下帘布的同时，卷帘杆转动并带动摩擦筒30，摩擦筒30转动的同时沿中心杆61轴向移动，摩擦筒30与套筒62内侧的摩擦片40的接触面积增大，即摩擦筒30与摩擦片40之间的摩擦力增大。由于帘布下降时，帘布垂下部分的重力增大，且复位弹簧的扭矩增大，为了平衡复位弹簧的扭矩，因此摩擦筒20与摩擦片40之间的摩擦力增大，以抵抗卷帘杆的运动趋势，从而使帘布能停在用户所需的位置。当帘布上升时，复位弹簧的扭矩减小，摩擦筒30与芯轴20之间的摩擦力也减小。直至帘布到达上限位，摩擦筒30移动 至与连接固定件的安装码抵接，卷帘杆不再转动。在本卷帘的使用过程中，随着卷帘杆的转动，摩擦筒30与摩擦片40之间的摩擦力总能动态补偿因帘布收放而产生的扭矩以及复位弹簧的扭矩差，起到很好的平衡作用。
以上是对本发明的较佳实施方式进行了具体说明，但本发明创造并不限于所述实施例，熟悉本领域的技术人员在不违背本发明精神的前提下还可作出种种的等同变型或替换，这些等同的变型或替换均包含在本申请权利要求所限定的范围内。

Claims (10)

  1. 一种卷帘平衡调节器，其特征在于，包括：
    阶梯轴，所述阶梯轴的小径段侧面上设有外螺纹；
    用于与卷帘杆连接的摩擦筒(30)，所述阶梯轴贯穿摩擦筒(30)，所述摩擦筒(30)内设有内螺纹，所述摩擦筒(30)的内侧与阶梯轴的小径段螺纹连接，所述摩擦筒(30)与阶梯轴的大径段之间设有摩擦层。
  2. 根据权利要求1所述的卷帘平衡调节器，其特征在于：所述阶梯轴包括限位螺杆(10)和芯轴(20)，所述芯轴(20)沿轴向方向设有芯轴通孔，所述限位螺杆(10)贯穿且固定在芯轴通孔中。
  3. 根据权利要求2所述的卷帘平衡调节器，其特征在于：所述摩擦筒(30)的内侧设有阶梯部，所述芯轴(20)位于摩擦筒(30)内的大径段中，所述内螺纹设置在摩擦筒(30)内的小径段上，所述芯轴(20)的第一端端面上设有第一棘齿(21)，所述摩擦筒(30)的阶梯部台肩上设有能与第一棘齿(21)啮合的第二棘齿(31)。
  4. 根据权利要求2所述的卷帘平衡调节器，其特征在于：所述摩擦筒(30)的端面上设有第三棘齿(32)，所述限位螺杆(10)上设有能与第三棘齿(32)啮合的第四棘齿(11)。
  5. 根据权利要求2所述的卷帘平衡调节器，其特征在于：所述芯轴(20)的第二端外侧设有环形凸起(22)，所述环形凸起(22)上设有至少一个沉头螺孔(23)，所述沉头螺孔(23)的孔轴垂直于限位螺杆(10)，螺栓插入沉头螺孔(23)后与限位螺杆(10)抵接。
  6. 一种卷帘，其特征在于：包括卷帘杆、帘布、两个安装码以及权利要求1-5中任一项所述的卷帘平衡调节器，所述帘布卷绕在卷帘杆上，所述卷帘杆的两端安装在安装码上，所述卷帘杆内设有复位弹簧，所述摩擦筒(30)与卷帘杆连接，所述阶梯轴的一端固定在其中一个安装码上。
  7. 一种卷帘平衡调节器，其特征在于，包括：
    固定件(60)，所述固定件(60)包括套筒(62)和固定在套筒(62)内的中心杆(61)，所述中心杆(61)沿套筒(62)的轴向方向布置，所述套筒(62)与中心杆(61)之间形成能容摩擦筒(30)插入的空间；
    用于与卷帘杆连接的摩擦筒(30)，所述摩擦筒(30)插入套筒(62)与中心杆(61)之间的空间，所述中心杆(61)贯穿摩擦筒(30)，所述摩擦筒(30)具有内侧面和外侧面，所述摩擦筒(30)的其中一个侧面与固定件(60)螺纹连接，所述摩擦筒(30)的另一个侧面与固定件(60)之间设有摩擦层。
  8. 根据权利要求7所述的卷帘平衡调节器，其特征在于：所述中心杆(61)上设有外螺纹， 所述摩擦筒(30)的内侧面上设有内螺纹，所述摩擦筒(30)与中心杆(61)螺纹连接，所述摩擦层位于摩擦筒(30)的外侧面与套筒(62)之间。
  9. 根据权利要求7所述的卷帘平衡调节器，其特征在于：所述套筒(62)的内侧设有内螺纹，所述摩擦筒(30)的外侧面上设有外螺纹，所述摩擦筒(30)与套筒(62)螺纹连接，所述摩擦层位于摩擦筒(30)的内侧面与中心杆(61)之间。
  10. 一种卷帘，其特征在于：包括卷帘杆、帘布、两个安装码以及权利要求7-9中任一项所述的卷帘平衡调节器，所述帘布卷绕在卷帘杆上，所述卷帘杆的两端安装在安装码上，所述卷帘杆内设有复位弹簧，所述摩擦筒(30)与卷帘杆连接，所述固定件(60)的一端固定在其中一个安装码上。
PCT/CN2020/125368 2019-12-03 2020-10-30 一种卷帘平衡调节器及其组成的卷帘 WO2021109766A1 (zh)

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