WO2024000272A1 - 一种旋推式液压铰链 - Google Patents

一种旋推式液压铰链 Download PDF

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Publication number
WO2024000272A1
WO2024000272A1 PCT/CN2022/102372 CN2022102372W WO2024000272A1 WO 2024000272 A1 WO2024000272 A1 WO 2024000272A1 CN 2022102372 W CN2022102372 W CN 2022102372W WO 2024000272 A1 WO2024000272 A1 WO 2024000272A1
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WIPO (PCT)
Prior art keywords
piston
wedge
oil
rotating shaft
hydraulic hinge
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PCT/CN2022/102372
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English (en)
French (fr)
Inventor
潘能将
Original Assignee
深圳市金合联技术股份有限公司
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Priority to PCT/CN2022/102372 priority Critical patent/WO2024000272A1/zh
Publication of WO2024000272A1 publication Critical patent/WO2024000272A1/zh

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction

Definitions

  • the invention relates to the field of hinges, in particular to a rotary hydraulic hinge.
  • the upper cover of the washing machine is generally connected directly by a pin, or a spring buffer is used, and a pin structure is used.
  • a pin When the cover is lowered, a loud banging sound will be made, causing discomfort to the user and lowering the cover.
  • the service life of the spring is long, and the spring is easily corroded, rusted and damaged.
  • the present invention provides a rotary hydraulic hinge that does not affect the closing action of the cover, can slowly descend, greatly reduces the collision force, and provides assistance when opening the cover, so that the heavier cover can Lift with ease.
  • a rotary hydraulic hinge which is characterized by: including a fixed sleeve and a rotating shaft.
  • the fixed sleeve is provided with an oil chamber for containing damping oil.
  • One end of the fixed sleeve is equipped with a sealing end cover, and the rotating shaft passes through the sealing end cover. It is equipped with a flexing component in the oil chamber for flexing the damping oil.
  • the flexing component includes a movable sleeve connected to the rear end of the rotating shaft and a piston mated with the movable sleeve. At least one user is formed on the movable sleeve.
  • the piston is pushed to squeeze the wedge-shaped convex portion of the damping oil in the oil chamber.
  • At least one wedge-shaped groove portion that matches the wedge-shaped convex portion is formed on the piston.
  • the inner wall of the fixed sleeve is provided with a structure for limiting the rotation of the piston.
  • the outer wall of the piston is provided with a ridge that matches the limiting groove, and a return spring is provided between the piston and the bottom of the oil chamber of the fixed sleeve to push the piston back.
  • the center of the movable sleeve is provided with a slot
  • the piston is provided with an insertion post for inserting into the movable sleeve.
  • the bottom of the fixed sleeve is also provided with an adjustment needle inserted into the plug for adjusting the amount of oil entering between the movable sleeve and the piston, and the plug is provided with an oil passage for the adjustment needle to be inserted.
  • the adjustment needle includes a stud body and a needle body arranged on the stud body.
  • the bottom of the fixed sleeve is provided with a screw hole that matches the stud body, and the needle body is inserted into the oil passage.
  • the cross section of the oil passage is in an inverted cone shape, and the cross section of the adjustment needle is in a conical shape.
  • the movable sleeve is provided with two wedge-shaped protruding parts
  • the piston is provided with two wedge-shaped groove parts that respectively cooperate with the wedge-shaped protruding parts.
  • each wedge-shaped protruding part is a platform end, and one side of the wedge-shaped protruding part is an upper contact arc surface; the bottom of each wedge-shaped groove part forms a groove for the platform end of the wedge-shaped protruding part to move.
  • one side of the wedge-shaped groove portion is a lower contact arc-shaped surface that matches the upper contact arc-shaped surface.
  • the upper contact arc surface and/or the lower contact arc surface are provided with an oil reservoir for reducing wear.
  • a sealing ring is provided between the sealing end cover and the fixed bearing; and a sealing ring is provided between the outer wall of the rotating shaft and the inner wall of the sealing end cover.
  • the damping oil is silicone oil.
  • the present invention provides a rotary hydraulic hinge.
  • the movable sleeve on the rotating shaft is used to rotate to push the piston to move in the fixed sleeve.
  • the oil chamber of the fixed sleeve is filled with damping oil.
  • the damping oil provides resistance, reduces the rotation speed of the rotating shaft, and plays a buffering role. This does not affect the closing action of the cover plate or seat ring, and can slowly descend. Greatly reduces collision force; and provides assistance when opening the cover, making it easy to lift heavier covers.
  • Figure 1 is a schematic diagram of a rotary hydraulic hinge provided by the present invention.
  • Figure 2 is a second schematic diagram of a rotary hydraulic hinge provided by the present invention.
  • Figure 3 is a top view of a rotary hydraulic hinge provided by the present invention.
  • Figure 4 is an exploded view of a rotary hydraulic hinge provided by the present invention.
  • Figure 5 is a cross-sectional view A-A of the spring in the minimum compression position of a rotary hydraulic hinge provided by the present invention.
  • Figure 6 is a cross-sectional view A-A of the spring in the maximum compression position of a rotary hydraulic hinge provided by the present invention.
  • Figure 7 is a schematic diagram of a fixed bushing in a rotary hydraulic hinge provided by the present invention.
  • Figure 8 is a schematic diagram of a movable sleeve in a rotary hydraulic hinge provided by the present invention.
  • Figure 9 is a schematic diagram of a piston in a rotary hydraulic hinge provided by the present invention.
  • Figure 10 is a state change diagram of the movable sleeve pushing the piston in a rotary hydraulic hinge provided by the present invention.
  • Figures 1 to 10 show a preferred embodiment of a rotary hydraulic hinge provided by the present invention.
  • the rotary hydraulic hinge includes a fixed sleeve 10 and a rotating shaft 20.
  • the fixed sleeve is provided with an oil chamber 11 for containing damping oil.
  • One end of the fixed sleeve is equipped with a sealing end cover 12 , the rotating shaft passes through the sealed end cover and is equipped with a flexing component 30 in the oil chamber for flexing the damping oil.
  • the flexing component 30 includes a movable sleeve 31 connected to the rear end of the rotating shaft and a piston mated with the movable sleeve. 32.
  • the movable sleeve 31 is formed with at least one wedge-shaped protrusion 311 for pushing the piston to squeeze the damping oil in the oil chamber during the rotation of the rotating shaft.
  • the piston 32 is formed with at least one wedge-shaped groove that matches the wedge-shaped protrusion.
  • the inner wall of the fixed sleeve 10 is provided with a limiting groove 101 for limiting the rotation of the piston.
  • the outer wall of the piston 32 is provided with a rib 322 that matches the limiting groove. There is a gap between the piston 32 and the bottom of the oil chamber of the fixed sleeve 10.
  • the damping oil is silicone oil.
  • the center of the movable sleeve 31 is provided with a slot 312, and the piston 32 is provided with an insertion post 323 for inserting into the movable sleeve, thus ensuring that the piston 32 and the movable sleeve 31 are coaxial.
  • the bottom of the fixed sleeve is also provided with an adjustment needle 40 inserted into the plug for adjusting the amount of oil entering between the movable sleeve and the piston.
  • the plug 323 is provided with an oil passage 3231 for the adjustment needle to be inserted.
  • the needle 40 controls the amount of damping oil entering the oil passage 3231, thereby controlling the resistance to the rotation of the rotating shaft to push the piston 32.
  • the adjustment needle 40 includes a stud body 41 and a needle body 42 arranged on the stud body.
  • the bottom of the fixed sleeve 10 is provided with a screw hole 13 that matches the stud body.
  • the needle body 42 is inserted into the oil passage 3231.
  • the user can rotate the stud body 41 from the outside of the fixed sleeve 10 to adjust the length of the needle body 42 inserted into the oil channel 3231 to control the gap size between the needle body 42 and the inner wall of the oil channel 3231, thereby controlling the damping entering the oil channel 3231.
  • Amount of oil Amount of oil.
  • the cross section of the oil passage is in the shape of an inverse cone, and the cross section of the adjustment needle is in the shape of a cone.
  • a sealing ring 100 is provided between the sealing end cover 12 and the fixed bearing 10; a sealing ring 100 is provided between the outer wall of the rotating shaft 20 and the inner wall of the sealing end cover 12, the piston 32, the side wall of the oil chamber and the studs. A sealing ring 100 is provided between the body 41 and the inner wall of the screw hole 13 to prevent damping oil from leaking.
  • the movable sleeve 31 is provided with two wedge-shaped protrusions 311 , the two wedge-shaped protrusions 311 are symmetrically distributed around the center, and the piston 32 is provided with two wedge-shaped protrusions that respectively cooperate with the wedge-shaped protrusions.
  • the wedge-shaped groove portion 321 is symmetrically distributed around the center.
  • each wedge-shaped protruding portion 311 is a platform end 31101, and one side of the wedge-shaped protruding portion is an upper contact arc surface 31102; the bottom of each wedge-shaped groove portion 321 forms a wedge-shaped
  • the platform end of the raised portion has a movable groove 32101.
  • the area of the groove 32101 is larger than the area of the platform end 31101.
  • One side of the wedge-shaped groove is a lower contact arc surface 32102 that matches the upper contact arc surface.
  • the rotating shaft 20 is also When not rotating downward, the platform end 31101 of the wedge-shaped protrusion 311 is inserted into the groove 32101, and the bottom surface of the platform end 31101 fits the bottom surface of the groove 32101, leaving a gap between the upper contact arc surface 31102 and the lower contact arc surface 32102.
  • the rotating shaft 20 When the rotary hydraulic hinge is applied to the cover of a washing machine, the rotating shaft 20 is connected to the cover as a whole, and the fixed sleeve 10 is installed on the body of the washing machine.
  • the rotating shaft 20 rotates downward and connects with the rotating shaft 20
  • the connected movable sleeve 31 rotates, and the wedge-shaped protrusion 311 on the movable sleeve 31 rotates. Since the rib 322 on the outer wall of the piston 32 is in the restriction groove 101, the piston 32 cannot rotate, and the wedge-shaped protrusion 311 is in contact with the wedge-shaped groove.
  • the piston 32 cooperates with the bottom 321 to push the piston 32 to move toward the bottom of the oil chamber and squeeze the return spring 33.
  • the damping oil in the oil chamber 11 generates resistance to the pushing piston 32 and reduces the rotation speed of the rotating shaft 20. , plays a buffering role, so that it does not affect the closing action of the cover or the seat ring, and can slowly descend, greatly reducing the collision force; when the rotating shaft 20 rotates in the opposite direction, under the action of the return spring 33, the piston 32 is pushed away The bottom direction of the oil chamber moves, and the piston 32 returns to its original position, which provides assistance when opening the cover, making it easy to lift the heavier cover.

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

本发明提供一种旋推式液压铰链，包括固定轴套和转轴，固定轴套内设有用于盛装阻尼油的油腔，固定轴套的一端配合有密封端盖，转轴穿过密封端盖配合有处于油腔内用于挠动阻尼油的挠动组件，挠动组件包括与转轴的尾端部连接的活动套筒和与活动套筒配合的活塞，活动套筒上形成有楔形凸起部，活塞上形成有楔形凹槽部，固定轴套的内壁上设有限制槽，活塞的外壁上设有凸棱，活塞与固定轴套的油腔底部之间还设有复位弹簧。与现有技术相比，该阻尼器中转轴向下转动时，利用转轴上的活动套筒转动推动活塞在固定轴套内移动，挤压油腔内阻尼油，降低转轴转速，这样不影响盖板的关闭动作，并能缓慢下降，大大减少碰撞力度。

Description

一种旋推式液压铰链 技术领域
本发明涉及铰链领域，特别是一种旋推式液压铰链。
 背景技术
目前，在洗衣机上盖板，一般都是采用销轴直接连接，或者采用弹簧缓冲，采用销轴结构，在放下盖板时会发出较大的打击响声，给用户带来不适，并且降低盖板的使用寿命，而采用弹簧，容易腐蚀生锈而损坏。
 技术解决方案
针对上述问题，本发明提供了一种旋推式液压铰链，能不影响盖板的关闭动作，并能缓慢下降，大大减少碰撞力度，并在开启盖板时提供助力，使较重的盖板轻松提起。
本发明采用的技术方案为：
一种旋推式液压铰链，其特征在于：包括固定轴套和转轴，固定轴套内设有用于盛装阻尼油的油腔，固定轴套的一端配合有密封端盖，转轴穿过密封端盖配合有处于油腔内用于挠动阻尼油的挠动组件，挠动组件包括与转轴的尾端部连接的活动套筒和与活动套筒配合的活塞，活动套筒上形成有至少一个用于转轴转动过程中推动活塞挤压油腔内阻尼油的楔形凸起部，活塞上形成有至少一个与楔形凸起部配合的楔形凹槽部，固定轴套的内壁上设有用于限制活塞转动的限制槽，活塞的外壁上设有与限制槽配合的凸棱，活塞与固定轴套的油腔底部之间还设有用于推动活塞复位的复位弹簧。
优选地，所述活动套筒的中心设有插槽，活塞上设有用于插入活动套筒内的插柱。
更优选地，所述固定轴套的底部还设有插入插柱内用于调节进入活动套筒和活塞之间油量的调节针，插柱内设有用于供调节针插入的油道。
更优选地，所述调节针包括螺柱体和设置在螺柱体上的针主体，固定轴套的底部设有与螺柱体配合的螺孔，针主体插入油道内。
更优选地，所述油道的截面呈倒锥形，所述调节针的截面呈锥形。
优选地，所述活动套筒上设有两个楔形凸起部，活塞上设有两个分别与楔形凸起部配合的楔形凹槽部。
优选地，每个楔形凸起部的底部呈平台端，楔形凸起部的一侧面为上接触弧形面；每个楔形凹槽部的底部形成供楔形凸起部的平台端活动的凹槽，楔形凹槽部的一侧面为与上接触弧形面配合的下接触弧形面。
优选地，所述上接触弧形面和/或所述下接触弧形面上设有用于减小磨损的蓄油槽。
优选地，所述密封端盖与固定轴承之间设有密封圈；所述转轴的外壁与密封端盖的内壁之间设有密封圈。
优选地，所述阻尼油为硅油。
 有益效果
与现有技术相比，本发明的有益效果在于：本发明提供一种旋推式液压铰链，在转轴向下转动时，利用转轴上的活动套筒转动推动活塞在固定轴套内移动，固定轴套的油腔内填充有阻尼油，在推动活塞过程中阻尼油提供阻力，降低转轴的转动速度，起到缓冲作用，这样不影响盖板或座圈的关闭动作，并能缓慢下降，大大减少碰撞力度；并在开启盖板时提供助力，使较重的盖板轻松提起。
 附图说明
图1，为本发明提供的一种旋推式液压铰链的示意图一。
图2，为本发明提供的一种旋推式液压铰链的示意图二。
图3，为本发明提供的一种旋推式液压铰链的俯视图。
图4，为本发明提供的一种旋推式液压铰链的爆炸图。
图5，为本发明提供的一种旋推式液压铰链中弹簧处于最小压缩位置的剖视图A-A。
图6，为本发明提供的一种旋推式液压铰链中弹簧处于最大压缩位置的剖视图A-A。
图7，为本发明提供的一种旋推式液压铰链中固定轴套的示意图。
图8，为本发明提供的一种旋推式液压铰链中活动套筒的示意图。
图9，为本发明提供的一种旋推式液压铰链中活塞的示意图。
图10，为本发明提供的一种旋推式液压铰链中活动套筒推动活塞的状态变化图。
 本发明的最佳实施方式
根据附图对本发明提供的优选实施方式做具体说明。
图1至图10，为本发明提供的一种旋推式液压铰链的优选实施方式。如图1至图10所示，该旋推式液压铰链包括固定轴套10和转轴20，固定轴套内设有用于盛装阻尼油的油腔11，固定轴套的一端配合有密封端盖12，转轴穿过密封端盖配合有处于油腔内用于挠动阻尼油的挠动组件30，挠动组件30包括与转轴的尾端部连接的活动套筒31和与活动套筒配合的活塞32，活动套筒31上形成有至少一个用于转轴转动过程中推动活塞挤压油腔内阻尼油的楔形凸起部311，活塞32上形成有至少一个与楔形凸起部配合的楔形凹槽部321，固定轴套10的内壁上设有用于限制活塞转动的限制槽101，活塞32的外壁上设有与限制槽配合的凸棱322，活塞32与固定轴套10的油腔底部之间还设有用于推动活塞复位的复位弹簧33，这样在转轴20发生转动时，与转轴20连接的活动套筒31转动，活动套筒31上的楔形凸起部311转动，由于活塞32外壁上的凸棱322处于限制槽101内，活塞32不能转动，楔形凸起部311与楔形凹槽部321配合，推动活塞32向靠近油腔底部方向移动，挤压复位弹簧33，在推动活塞32的过程中由于油腔11内有阻尼油，对推动活塞32产生阻力，使得转轴20的转动速度下降；在转轴20反向转动时，在复位弹簧33的作用下，推动活塞32向远离油腔底部方向移动，活塞32恢复原位。所述阻尼油为硅油。
所述活动套筒31的中心设有插槽312，活塞32上设有用于插入活动套筒内的插柱323，这样保证活塞32与活动套筒31处于同轴线。
所述固定轴套的底部还设有插入插柱内用于调节进入活动套筒和活塞之间油量的调节针40，插柱323内设有用于供调节针插入的油道3231，利用调节针40控制进入油道3231的阻尼油的油量，从而控制对转轴转动以推动活塞32的阻力。所述调节针40包括螺柱体41和设置在螺柱体上的针主体42，固定轴套10的底部设有与螺柱体配合的螺孔13，针主体42插入油道3231内，操作者可从固定轴套10的外部转动螺柱体41，以调节针主体42插入油道3231内的长度，以控制针主体42与油道3231内壁的间隙大小，从而控制进入油道3231的阻尼油油量。所述油道的截面呈倒锥形，所述调节针的截面呈锥形。
所述密封端盖12与固定轴承10之间设有密封圈100；所述转轴20的外壁与密封端盖12的内壁之间设有密封圈100，活塞32与油腔的侧壁以及螺柱体41与螺孔13的内壁之间都设有密封圈100，这样防止阻尼油泄漏。
作为一种优选实施方式，所述活动套筒31上设有两个楔形凸起部311，两个楔形凸起部311围绕中心对称分布，活塞32上设有两个分别与楔形凸起部配合的楔形凹槽部321，两个楔形凹槽部321围绕中心对称分布。
如图5至图10所示，每个楔形凸起部311的底部呈平台端31101，楔形凸起部的一侧面为上接触弧形面31102；每个楔形凹槽部321的底部形成供楔形凸起部的平台端活动的凹槽32101，凹槽32101面积大于平台端31101的面积，楔形凹槽部的一侧面为与上接触弧形面配合的下接触弧形面32102，在转轴20还未向下转动时，楔形凸起部311的平台端31101插入凹槽32101内，平台端31101的底面贴合凹槽32101的底面，上接触弧形面31102与下接触弧形面32102之间留有间距；当转轴20开始向下转动时，带动楔形凸起部上平台端31101在凹槽32101内转动；转轴20继续转动，楔形凸起部上的上接触弧形面31102与楔形凹槽部321的下接触弧形面32102贴合，推动楔形凹槽部321移动，楔形凸起部上的上接触弧形面31102逐渐与下接触弧形面32102上方贴合，使得活塞32逐渐挤压固定轴套10内阻尼油，直至楔形凸起部311的上接触弧形面31102与楔形凹槽部321的下接触弧形面32102完全脱离，活塞32对固定轴套10内的移动距离达到最大。所述上接触弧形面和/或所述下接触弧形面上设有用于减小磨损的蓄油槽301，以藏油和润滑降温作用。
该旋推式液压铰链应用在洗衣机盖板上时，转轴20与盖板连接为一体，固定轴套10安装在洗衣机的机体上，在洗衣机盖板下降时，转轴20向下转动，与转轴20连接的活动套筒31转动，活动套筒31上的楔形凸起部311转动，由于活塞32外壁上的凸棱322处于限制槽101内，活塞32不能转动，楔形凸起部311与楔形凹槽部321配合，推动活塞32向靠近油腔底部方向移动，挤压复位弹簧33，在推动活塞32的过程中由于油腔11内有阻尼油，对推动活塞32产生阻力，降低转轴20的转动速度，起到缓冲作用，这样不影响盖板或座圈的关闭动作，并能缓慢下降，大大减少碰撞力度；而在转轴20反向转动时，在复位弹簧33的作用下，推动活塞32向远离油腔底部方向移动，活塞32恢复原位，这样在开启盖板时提供助力，使较重的盖板轻松提起。
综上所述，本发明的技术方案可以充分有效的实现上述发明目的，且本发明的结构及功能原理都已经在实施例中得到充分的验证，能达到预期的功效及目的，在不背离本发明的原理和实质的前提下，可以对发明的实施例做出多种变更或修改。因此，本发明包括一切在专利申请范围中所提到范围内的所有替换内容，任何在本发明申请专利范围内所作的等效变化，皆属本案申请的专利范围之内。

Claims (10)

  1. 一种旋推式液压铰链，其特征在于：包括固定轴套和转轴，固定轴套内设有用于盛装阻尼油的油腔，固定轴套的一端配合有密封端盖，转轴穿过密封端盖配合有处于油腔内用于挠动阻尼油的挠动组件，挠动组件包括与转轴的尾端部连接的活动套筒和与活动套筒配合的活塞，活动套筒上形成有至少一个用于转轴转动过程中推动活塞挤压油腔内阻尼油的楔形凸起部，活塞上形成有至少一个与楔形凸起部配合的楔形凹槽部，固定轴套的内壁上设有用于限制活塞转动的限制槽，活塞的外壁上设有与限制槽配合的凸棱，活塞与固定轴套的油腔底部之间还设有用于推动活塞复位的复位弹簧。
  2. 根据权利要求1所述的旋推式液压铰链，其特征在于：所述活动套筒的中心设有插槽，活塞上设有用于插入活动套筒内的插柱。
  3. 根据权利要求2所述的旋推式液压铰链，其特征在于：所述固定轴套的底部还设有插入插柱内用于调节进入活动套筒和活塞之间油量的调节针，插柱内设有用于供调节针插入的油道。
  4. 根据权利要求3所述的旋推式液压铰链，其特征在于：所述调节针包括螺柱体和设置在螺柱体上的针主体，固定轴套的底部设有与螺柱体配合的螺孔，针主体插入油道内。
  5. 根据权利要求3所述的旋推式液压铰链，其特征在于：所述油道的截面呈倒锥形，所述调节针的截面呈锥形。
  6. 根据权利要求1所述的旋推式液压铰链，其特征在于：所述活动套筒上设有两个楔形凸起部，活塞上设有两个分别与楔形凸起部配合的楔形凹槽部。
  7. 根据权利要求1或6任一所述的旋推式液压铰链，其特征在于：每个楔形凸起部的底部呈平台端，楔形凸起部的一侧面为上接触弧形面；每个楔形凹槽部的底部形成供楔形凸起部的平台端活动的凹槽，楔形凹槽部的一侧面为与上接触弧形面配合的下接触弧形面。
  8. 根据权利要求7所述的旋推式液压铰链，其特征在于：所述上接触弧形面和/或所述下接触弧形面上设有用于减小磨损的蓄油槽。
  9. 根据权利要求1所述的旋推式液压铰链，其特征在于：所述密封端盖与固定轴承之间设有密封圈；所述转轴的外壁与密封端盖的内壁之间设有密封圈。
  10. 根据权利要求1所述的旋推式液压铰链，其特征在于：所述阻尼油为硅油。
PCT/CN2022/102372 2022-06-29 2022-06-29 一种旋推式液压铰链 WO2024000272A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1394261A (zh) * 2000-10-30 2003-01-29 恩嘎茨讷工业株式会社 转动缓冲器
KR20070014713A (ko) * 2005-07-29 2007-02-01 주식회사 아이원이노텍 자동복귀 힌지장치
CN102587778A (zh) * 2012-01-17 2012-07-18 李飞勇 一种变阻力阻尼器
CN213232854U (zh) * 2020-07-07 2021-05-18 南京丹浦尔机电科技有限公司 一种可调扭矩缓降器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1394261A (zh) * 2000-10-30 2003-01-29 恩嘎茨讷工业株式会社 转动缓冲器
KR20070014713A (ko) * 2005-07-29 2007-02-01 주식회사 아이원이노텍 자동복귀 힌지장치
CN102587778A (zh) * 2012-01-17 2012-07-18 李飞勇 一种变阻力阻尼器
CN213232854U (zh) * 2020-07-07 2021-05-18 南京丹浦尔机电科技有限公司 一种可调扭矩缓降器

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