CN105905740B - 一种电梯安全钳 - Google Patents

一种电梯安全钳 Download PDF

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CN105905740B
CN105905740B CN201610468923.9A CN201610468923A CN105905740B CN 105905740 B CN105905740 B CN 105905740B CN 201610468923 A CN201610468923 A CN 201610468923A CN 105905740 B CN105905740 B CN 105905740B
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elevator safety
clamp
movable wedge
safety gear
pull rod
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CN105905740A (zh
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潘国强
张能
吴斌华
王建余
勾晓波
宋鹤亭
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Huzhou Huti Association Elevator Technology Service Co.,Ltd.
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces

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Abstract

本发明涉及电梯安全领域,具体涉及一种电梯安全钳,包括:支架、上钳体、下钳体和拉杆;所述支架包括,上下相连的上钳体腔和下钳体腔;所述上钳体设置在上钳体腔内,包括,由外向内设置的上固定楔块和上活动楔块,所述上活动楔块下部设置有第一横孔;所述下钳体设置在下钳体腔内,包括,由外向内设置的下固定楔块、下活动楔块,所述下活动楔块上设置有第二横孔;所述拉杆包括,上拉杆和下拉杆。

Description

一种电梯安全钳
技术领域
本发明涉及电梯安全领域,具体涉及一种电梯安全钳。
背景技术
当电梯出现意外故障,导致电梯超速运行,或者电梯出现意外坠落的情况时,为了保护乘坐人员的安全,电梯上通常设置有安全保护装置。常规的安全保护装置包括,限速器和安全钳,当电梯超速运行的时候,限速器启动拉起安全钳的拉杆,使安全钳夹紧导轨对电梯轿厢进行制动。传统的安全钳分为瞬时式和渐进式,分别用于运行速度在0.63m/s以下和0.63m/s以上的电梯中。然而传统安全钳在实际制动的时候,产生的热量较高,且制动面的摩擦片容易在电梯长期的运行时磨损,导致安全性能的下降,此外,传统安全钳制动调节范围小,难以对各种不同的超速情况均起到良好的制动效果。
发明内容
本发明的目的,是为了解决背景技术中的问题,提供一种电梯安全钳。
本发明的上述技术目的是通过以下技术方案得以实现的:
一种电梯安全钳,包括:支架、上钳体、下钳体和拉杆;
所述支架包括,上下相连的上钳体腔和下钳体腔;
所述上钳体设置在上钳体腔内,包括,由外向内设置的上固定楔块和上活动楔块,所述上活动楔块下部设置有第一横孔;
所述下钳体设置在下钳体腔内,包括,由外向内设置的下固定楔块、下活动楔块,所述下活动楔块上设置有第二横孔;
所述拉杆包括,上拉杆和下拉杆;所述上拉杆的上端穿出支架上端,所述上拉杆的下端设置有上销轴,所述上销轴穿插在第一横孔内,当上拉杆上提时,所述上销轴能在第一横孔内横向移动;所述下拉杆的上端设置有长竖孔,所述下拉杆的下端设置有下销轴,所述下拉杆上端通过长竖孔套在上销轴外,所述下销轴穿插在第二横孔内,所述下拉杆在上销轴移动到长竖孔顶部时上提,当下拉杆上提时,所述下销轴能在第二横孔内横向移动。
在电梯实际运行时,电梯会因为各种意外情况超速,在限速器介入前,由于轿厢内的质量因素等,会出现不同的超速速度,对于制动系统而言,针对不同的超速情况需要采取不同的制动措施。本方案中,当电梯的超速度较小时,拉杆中的上拉杆上提,带动上活动楔块向内夹紧导轨,使得上钳体对轿厢进行制动,当制动力足够,上拉杆的行程小于长竖孔的长度时,下钳体不参与制动,有效保护了下钳体部分的摩擦面。当电梯的超速度较大时,上钳体的制动力不足以对轿厢进行制动,上拉杆的行程将大于长竖孔的长度,此时下拉杆被上销轴上提,下活动楔块介入制动,该过程中,上钳体和下钳体共同制动,提高了制动摩擦面积,提高了制动效果,且当下钳体参与制动后,可以分摊上钳体受到的摩擦,降低的上钳体的升温速度,使得整个安全钳在制动过程中的温度降低,提高了电梯的安全性。
作为优选,所述上钳体腔上端设置有滑轨和预紧机构,所述上钳体腔下端设置有搁板,所述滑轨内侧设置有定位块,所述上固定楔块通过滑槽与滑轨相连,并通过预紧机构和定位块在滑轨上固定,所述上活动楔块底部搁置在搁板上,保证了上固定楔块和上活动楔块位置的稳定。
作为上述方案的优选,所述上固定楔块的滑槽有两个,分别设置在上固定楔块的顶部和中部,以确定上固定楔块受力滑动以及位置调整时的移动方向。
作为优选,所述预紧机构包括,调节螺栓、调节板和预紧弹簧,所述调节板通过滑槽与滑轨相连,并通过调节螺栓定位,所述预紧弹簧设置在调节板与上固定楔块的外侧面之间。
作为优选,所述上固定楔块、上活动楔块之间设置有导向片,起到对上固定楔块、上活动楔块之间滑动的导向作用。
作为优选,所述导向片内设置有滚轮,滚轮与上固定楔块的斜面相互接触。
作为优选,所述上活动楔块斜面与水平面所成锐角大于所述下活动楔块斜面与水平面所成锐角,该设计保证了竖直位移相同的情况下,下钳体的横向加紧力大于上钳体的横向夹紧力。
作为优选,所述下固定楔块固定在下钳体腔内,所述下钳体腔下部设置有用以支撑下活动楔块的下搁板,使得下钳体具有较强的制动性能。
作为优选,所述上活动楔块内侧设置有铍青铜片,铍青铜具有耐磨、 耐低温、无磁性、高导电性、冲击无火花等特点,是用以制动片的良好材料。
作为优选,所述支架中心设置有用以导轨通过的通槽。
作为优选,所述支架顶部设置有用以上拉杆通过的通孔。
综上所述,本发明的有益效果:
①本发明所述的一种电梯安全钳,采用分级制动的方式,能够良好的对电梯不同情况的超速进行制动。
②本发明所述的一种电梯安全钳,制动效果好,制动过程平稳,使用寿命长。
③本发明所述的一种电梯安全钳,制动过程中的温度低,适用于各种防爆要求较高的电梯实用场合中。
附图说明
图1是本发明正面的结构示意图;
图2是本发明背面的结构示意图;
图3是本发明的组装示意图;
图4是本发明中支架的结构示意图;
图5是本发明的制动过程图。
具体实施方式
以下具体实施例仅仅是对本发明的解释,其并不是对本发明的限制,本领域技术人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改,但只要在本发明的权利要求范围内都受到专利法的保护。
下面结合附图以实施例对本发明进行详细说明。
实施例1:
根据图1~图4所示,一种电梯安全钳,其特征在于,包括:支架1、上钳体2、下钳体3和拉杆4;
支架1包括,上下相连的上钳体腔11和下钳体腔12,支架1中心设置有用以导轨5通过的通槽13,支架1顶部设置有用以上拉杆41通过的通孔14。
上钳体2设置在上钳体腔11内,包括,由外向内设置的上固定楔块21和上活动楔块22,上活动楔块22下部设置有第一横孔221。
下钳体3设置在下钳体腔12内,包括,由外向内设置的下固定楔块31、下活动楔块32,下活动楔块32上设置有第二横孔321。
拉杆4包括,上拉杆41和下拉杆42;上拉杆41的上端穿出支架1上端,上拉杆41的下端设置有上销轴411,上销轴411穿插在第一横孔221内,当上拉杆41上提时,上销轴411能在第一横孔221内横向移动;下拉杆42的上端设置有长竖孔421,下拉杆42的下端设置有下销轴422,下拉杆42上端通过长竖孔421套在上销轴411外,下销轴422穿插在第二横孔321内,下拉杆42在上销轴411移动到长竖孔421顶部时上提,当下拉杆42上提时,下销轴422能在第二横孔321内横向移动。
上钳体腔11上端设置有滑轨111和预紧机构112,上钳体腔11下端设置有搁板113,滑轨111内侧设置有定位块114,上固定楔块21通过滑槽211与滑轨111相连,并通过预紧机构112和定位块114在滑轨111上固定,上活动楔块22底部搁置在搁板113上,上固定楔块21的滑槽211有两个,分别设置在上固定楔块21的顶部和中部,以确定上固定楔块21受力滑动以及位置调整时的移动方向,预紧机构112包括,调节螺栓1121、调节板1122和预紧弹簧1123,调节板1122通过滑槽211与滑轨111相连,并通过调节螺栓1121定位,预紧弹簧1123设置在调节板1122与上固定楔块21的外侧面之间。下固定楔块31固定在下钳体腔12内,下钳体腔12下部设置有用以支撑下活动楔块32的下搁板121。
上活动楔块22斜面与水平面所成锐角大于下活动楔块32斜面与水平面所成锐角,上活动楔块22内侧设置有铍青铜片222。
根据图1、图5所示,安全钳在运行的时候分为A、B、C三个状态。A状态为电梯正常运行,安全钳待命时的状态。当井道顶部机房内的限速器介入工作后,拉杆4被提起,安全钳首先进入B状态进行制动,B状态中上拉杆41将上活动楔块22向上拉,上活动楔块22内侧将导轨5夹紧。若此时的制动力足够,则上拉杆41不再上升,下钳体3不介入制动;若此时的制动力不够,则上拉杆41继续上升,当上拉杆41的上升行程大于下拉杆42顶部长竖孔421长度时,则下拉杆42受到上销轴411的拉力带动下活动楔块32夹紧导轨5进行制动,此时安全钳的状态进入C状态。
实施例2:
与上述实施例1不同之处在于,上固定楔块21、上活动楔块22之间设置有导向片23,导向片23内设置有滚轮,滚轮与上固定楔块21的斜面相互接触,用以优化上活动楔块22的移动导向。

Claims (10)

1.一种电梯安全钳,其特征在于,包括:支架(1)、上钳体(2)、下钳体(3)和拉杆(4);
所述支架(1)包括,上下相连的上钳体腔(11)和下钳体腔(12);
所述上钳体(2)设置在上钳体腔(11)内,包括,由外向内设置的上固定楔块(21)和上活动楔块(22),所述上活动楔块(22)下部设置有第一横孔(221);
所述下钳体(3)设置在下钳体腔(12)内,包括,由外向内设置的下固定楔块(31)、下活动楔块(32),所述下活动楔块(32)上设置有第二横孔(321);
所述拉杆(4)包括,上拉杆(41)和下拉杆(42);所述上拉杆(41)的上端穿出支架(1)上端,所述上拉杆(41)的下端设置有上销轴(411),所述上销轴(411)穿插在第一横孔(221)内;所述下拉杆(42)的上端设置有长竖孔(421),所述下拉杆(42)的下端设置有下销轴(422),所述下拉杆(42)上端通过长竖孔(421)套在上销轴(411)外,所述下销轴(422)穿插在第二横孔(321)内。
2.根据权利要求1所述的一种电梯安全钳,其特征在于,所述上钳体腔(11)上端设置有滑轨(111)和预紧机构(112),所述上钳体腔(11)下端设置有搁板(113),所述滑轨(111)内侧设置有定位块(114),所述上固定楔块(21)通过滑槽(211)与滑轨(111)相连,并通过预紧机构(112)和定位块(114)在滑轨(111)上固定,所述上活动楔块(22)底部搁置在搁板(113)上。
3.根据权利要求2所述的一种电梯安全钳,其特征在于,所述预紧机构(112)包括,调节螺栓(1121)、调节板(1122)和预紧弹簧(1123),所述调节板(1122)通过滑槽(211)与滑轨(111)相连,并通过调节螺栓(1121)定位,所述预紧弹簧(1123)设置在调节板(1122)与上固定楔块(21)的外侧面之间。
4.根据权利要求3所述的一种电梯安全钳,其特征在于,所述上固定楔块(21)、上活动楔块(22)之间设置有导向片(23)。
5.根据权利要求4所述的一种电梯安全钳,其特征在于,所述导向片(23)内设置有滚轮,滚轮与所述上固定楔块(21)的斜面相互接触。
6.根据权利要求1-5任意一项所述的一种电梯安全钳,其特征在于,所述上活动楔块(22)斜面与水平面所成锐角大于所述下活动楔块(32)斜面与水平面所成锐角。
7.根据权利要求6所述的一种电梯安全钳,其特征在于,所述下固定楔块(31)固定在下钳体腔(12)内,所述下钳体腔(12)下部设置有用以支撑下活动楔块(32)的下搁板(121)。
8.根据权利要求7所述的一种电梯安全钳,其特征在于,所述上活动楔块(22)内侧设置有铍青铜片(222)。
9.根据权利要求7所述的一种电梯安全钳,其特征在于,所述支架(1)中心设置有用以导轨通过的通槽(13)。
10.根据权利要求7所述的一种电梯安全钳,其特征在于,所述支架(1)顶部设置有用以上拉杆(41)通过的通孔(14)。
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EP1167269A1 (en) * 2000-01-11 2002-01-02 Kabushiki Kaisha Toshiba Elevator emergency stopping device
CN1319551A (zh) * 2000-04-14 2001-10-31 中国建筑科学研究院建筑机械化研究分院 电梯双向安全钳
CN101311096A (zh) * 2007-05-23 2008-11-26 株式会社日立制作所 电梯的紧急制动装置
CN205873576U (zh) * 2016-06-25 2017-01-11 浙江南奥电梯有限公司 一种电梯安全钳

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Assignee: SL ELEVATOR CO.,LTD.

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Assignee: G.LOONG ELEVATOR Co.,Ltd.

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Record date: 20221213

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Assignee: DESENK ELEVATOR (CHINA) CO.,LTD.

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Record date: 20221215

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Assignee: Montefilo (Huzhou) Elevator Parts Co.,Ltd.

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Record date: 20221216

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Assignee: DELFAR ELEVATOR CO.,LTD.

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Record date: 20221216

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Assignee: LINGZHI ELEVATOR CO.,LTD.

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Record date: 20221216

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Assignee: FAST ELEVATOR CO.,LTD.

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Assignee: HUZHOU MDUNKS EXPRESS LIFT CO.,LTD.

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Record date: 20221221

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Assignee: ZHEJIANG HANMEIDE ELEVATOR Co.,Ltd.

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Record date: 20221219

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Assignee: Huzhou tongkuai Intelligent Equipment Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

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Record date: 20221221

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Assignee: Zhejiang Xinxun Technology Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

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Assignee: ZHEJIANG MATO DRIVE EQUIPMENT CO.,LTD.

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Record date: 20221219

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Assignee: Huzhou Jingjin Machinery Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

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Record date: 20221221

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Assignee: Huzhou Bosi Elevator Technology Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

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Denomination of invention: Elevator safety gear

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Record date: 20221221

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Assignee: Zhejiang Jutuo Technology Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000800

Denomination of invention: Elevator safety gear

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License type: Common License

Record date: 20221221

Application publication date: 20160831

Assignee: Gelsen Elevator Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000789

Denomination of invention: Elevator safety gear

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License type: Common License

Record date: 20221219

Application publication date: 20160831

Assignee: SUXUN ELEVATOR Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000790

Denomination of invention: Elevator safety gear

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License type: Common License

Record date: 20221219

Application publication date: 20160831

Assignee: Jiage Technology (Zhejiang) Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000791

Denomination of invention: Elevator safety gear

Granted publication date: 20180605

License type: Common License

Record date: 20221219

Application publication date: 20160831

Assignee: Kemanpu Elevator (Zhejiang) Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000801

Denomination of invention: Elevator safety gear

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License type: Common License

Record date: 20221221

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Assignee: Zhongwo Express (Zhejiang) Elevator Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000802

Denomination of invention: Elevator safety gear

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License type: Common License

Record date: 20221221

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Assignee: Shengxun Elevator (Zhejiang) Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000803

Denomination of invention: Elevator safety gear

Granted publication date: 20180605

License type: Common License

Record date: 20221221

Application publication date: 20160831

Assignee: PLANCK ELEVATOR CO.,LTD.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000792

Denomination of invention: Elevator safety gear

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License type: Common License

Record date: 20221219

Application publication date: 20160831

Assignee: Huzhou Fuji Elevator Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000798

Denomination of invention: Elevator safety gear

Granted publication date: 20180605

License type: Common License

Record date: 20221221

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Assignee: LINGDIAN ELEVATOR Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000788

Denomination of invention: Elevator safety gear

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License type: Common License

Record date: 20221219

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Assignee: HUZHOU DMGE ELEVATOR CO.,LTD.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000797

Denomination of invention: Elevator safety gear

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License type: Common License

Record date: 20221221

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Assignee: Zhejiang Gangtong Elevator Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000796

Denomination of invention: Elevator safety gear

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License type: Common License

Record date: 20221221

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Assignee: HUZHOU DONGSU ELEVATOR PARTS Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000793

Denomination of invention: Elevator safety gear

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License type: Common License

Record date: 20221219

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Assignee: ZHEJIANG GME Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000807

Denomination of invention: Elevator safety gear

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License type: Common License

Record date: 20221221