WO2019233333A1 - 一种用于动车组车钩实验的启动保护装置 - Google Patents

一种用于动车组车钩实验的启动保护装置 Download PDF

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Publication number
WO2019233333A1
WO2019233333A1 PCT/CN2019/089167 CN2019089167W WO2019233333A1 WO 2019233333 A1 WO2019233333 A1 WO 2019233333A1 CN 2019089167 W CN2019089167 W CN 2019089167W WO 2019233333 A1 WO2019233333 A1 WO 2019233333A1
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WIPO (PCT)
Prior art keywords
protection device
coupler
emu
trolley
support
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Ceased
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PCT/CN2019/089167
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English (en)
French (fr)
Inventor
许平
姚曙光
谭博文
彭勇
鲁寨军
孙成名
徐凯
黄启
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Central South University
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Central South University
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Priority to US16/975,116 priority Critical patent/US11959829B2/en
Publication of WO2019233333A1 publication Critical patent/WO2019233333A1/zh
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G5/00—Couplings for special purposes not otherwise provided for
    • B61G5/06—Couplings for special purposes not otherwise provided for for, or combined with, couplings or connectors for fluid conduits or electric cables
    • B61G5/10—Couplings for special purposes not otherwise provided for for, or combined with, couplings or connectors for fluid conduits or electric cables for electric cables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/08—Railway vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00—Vibration-testing of structures; Shock-testing of structures
    • G01M7/08—Shock-testing

Definitions

  • the invention relates to a protective component of a rail vehicle connector, in particular to a start-up protection device for a coupler experiment of an EMU, belonging to the field of locomotive vehicle safety.
  • the train coupler is a vehicle component used to realize the connection between the locomotive and the vehicle or between the vehicle and the vehicle, transmitting traction and impact forces, and keeping a certain distance between the vehicles. As the running speed of rail trains continues to increase, the couplers that play a role in connecting various car sections should be continuously tested and improved.
  • the experimental device When performing an EMU vehicle collision test, the experimental device must reach the stage of the test speed required by EN15227 standard. The two vehicles of the previous experimental device need to go through the next vehicle to push the previous vehicle to achieve the same speed.
  • the pressure applied to the coupler greatly exceeds the normal range.
  • the crusher tube in the coupler will be compressed and compressed, which will prevent the subsequent complete collision test of the coupler, which will greatly hinder the coupler.
  • the performance measurement deviates the experimental results from the facts.
  • the technical problem to be solved by the present invention is to overcome the deficiencies and deficiencies mentioned in the above background technology, and provide a starting protection for an EMU coupler experiment that has a simple structure, does not affect the test process, and can replace the coupler withstand the pressure during the start-up phase. Device.
  • the technical solution proposed by the present invention is:
  • a starter protection device for an EMU coupler experiment the starter protection device is provided between two trolleys used for the experiment, and the starter protection device is pressed against the two trolleys during the start-up phase of the experimental device. In between and instead of the coupler being pressed, the starting protection device is disengaged from between the two trolleys after the completion of the starting phase.
  • the starting protection device includes a supporting member, a first mounting seat mounted on one trolley and a second mounting seat mounted on another trolley, and one end of the supporting member is hinged with the second mounting seat, The other end of the support is tightly abutted against the trolley or the first mounting base during the startup phase of the experimental device, and is separated from the first mounting base after the startup phase is completed.
  • the first mounting base includes a disengagement driving member, and a driving end of the disengagement driving member can push the support member away from the top tightening state.
  • the support member includes a support rod and a stopper connected below the support rod, an end portion of the support rod is overlapped on an upper surface of the trolley, and the stopper is abutted on an end surface of the trolley.
  • the disengagement driving member further includes a connecting rod, a positioning member, and a telescopic driver.
  • the positioning member and the telescopic driver are separately arranged on both sides of the strut.
  • One end of the link is connected to the positioning member and the other end is connected to the telescopic driver.
  • the connecting rod is arranged below the strut or penetrates the strut.
  • the first mounting base further includes a limiting frame fixedly connected to the upper surface of the trolley, the limiting frame is disposed outside the end of the strut and restricts the end of the strut from moving laterally.
  • the stopper is provided with a plurality of through holes at the same interval as the row of threaded holes. The stopper passes through the through hole. The bolts fastened to the threaded holes are fixed on the brace.
  • a slide groove is provided below the end of the support member along the axial direction of the support member, a driving end of the disengagement driving member is provided with a slider capable of sliding in the chute, and the driving end of the disengagement driving member passes the slider. Sliding in the chute is in sliding fit with the end of the support.
  • the second mounting base includes a mounting plate, and an end portion of the support member is hinged on a plate surface of the mounting plate.
  • the starting protection device for the coupler experiment of the EMU according to the present invention is tightened between two trolleys during the start-up phase of the experimental device and replaces the coupler pressure, and is separated from the two trolleys after the start-up phase is completed.
  • the starting protection device replaces the coupler to receive pressure to prevent the strong pressure generated during the startup stage from compressing the crusher tube of the coupler, so that the subsequent coupler collision test can be performed intact without interfering with the coupler.
  • the protection device is activated to connect the two trolleys, which improves the force transmission effect, speeds up the process of the two trolleys running at a consistent speed, and makes the EMU coupler experimental device enter the experimental state faster, improving
  • the starting protection device is loosened, so that the coupler enters the experimental state, so that the collision test of the coupler can be performed as usual.
  • This detachable starter protection device improves the accuracy of the coupler collision test. The reliability and reliability also speed up the experiment process and save a lot of time.
  • FIG. 1 is a three-dimensional structure diagram of a start-up protection device for an EMU coupler experiment in Embodiment 1;
  • FIG. 1 is a three-dimensional structure diagram of a start-up protection device for an EMU coupler experiment in Embodiment 1;
  • FIG. 2 is a schematic structural view of a front view of a starting protection device for an EMU coupler experiment in Embodiment 1;
  • FIG. 3 is a schematic structural view of a state of a top support of a support member in Embodiment 1;
  • FIG. 4 is a schematic structural view of a support member in a loose state in Embodiment 1;
  • FIG. 5 is a schematic structural diagram of a state where a support member is supported in Embodiment 2;
  • FIG. 6 is a schematic structural diagram of a support member in a loose state in Embodiment 2.
  • FIG. 6 is a schematic structural diagram of a support member in a loose state in Embodiment 2.
  • the starting protection device for the coupler experiment of the EMU As shown in FIG. 1 to FIG. 4, the starting protection device for the coupler experiment of the EMU according to this embodiment, the starting protection device is provided between the two trolleys used for the experiment, and the starting protection device is tight during the startup phase of the experimental device. Between the two trolleys and in place of the coupler under pressure, the starting protection device is separated from the two trolleys after the start-up phase is completed.
  • the starting protection device replaces the coupler to receive pressure to prevent the strong pressure generated during the startup stage from compressing the crusher tube of the coupler, so that the subsequent coupler collision test can be performed intact without interfering with the coupler
  • the protection device is activated to connect the two trolleys, which improves the force transmission effect, speeds up the process of the two trolleys running at a consistent speed, and makes the EMU coupler experimental device enter the experimental state faster, improving
  • the starting protection device is loosened, so that the coupler enters the experimental state, so that the collision test of the coupler can be performed as usual.
  • This detachable starter protection device improves the accuracy of the coupler collision test. The reliability and reliability also speed up the experiment process and save a lot of time.
  • the starting protection device includes a supporting member 1, a first mounting seat 2 mounted on one trolley, and a second mounting seat 3 mounted on another trolley.
  • One end of the supporting member 1 and the second mounting seat The seat 3 is hinged, and the other end of the support 1 is pressed against the trolley or the first mounting seat 2 during the start-up phase of the experimental device, and is separated from the first mounting seat 2 after the start-up phase is completed.
  • the first mounting base 2 includes a disengagement driving member 21, and the driving end of the disengagement driving member 21 can push the support member 1 away from the top-tightened state.
  • the second mounting base 3 includes a mounting plate 31, and an end portion of the support member 1 is hinged on a plate surface of the mounting plate 31.
  • the support 1 includes a stay 11 and a stopper 12 connected below the stay 11.
  • the end of the stay 11 is overlapped with the upper surface of the trolley, and the stopper 12 is abutted on the end surface of the trolley.
  • the disengagement driving member 21 further includes a link 211, a positioning member 212, and a telescopic driver 213.
  • the positioning member 212 and the telescopic driver 213 are separately disposed on both sides of the support rod 11.
  • One end of the link 211 is connected to the positioning member 212, and another One end is connected to the telescopic driver 213, and the connecting rod 211 is arranged below the strut 11 or passed through the strut 11; the connecting rod 211 is slidably connected to the strut 11 and can be pushed up and supported by the driving end of the telescopic driver 213 Rod 11.
  • the first mounting base 2 further includes a limiting frame 22 fixedly connected to the upper surface of the trolley.
  • the limiting frame 22 is framed outside the end of the stay 11 and restricts the lateral movement of the end of the stay 11 .
  • a uniformly arranged screw hole is provided below the end of the stay 11 along the axial direction of the stay 11.
  • the stopper 12 is provided with a plurality of through holes with the same interval as the row of threaded holes.
  • a bolt that passes through the through hole and is fastened to the threaded hole is fixed on the stay 11 and can adjust the axial relative position with the stay 11. Because the coupler's overall axial length may vary due to factors such as model, structure, or material, the distance between the two trolleys in the experimental device needs to be adjusted accordingly during the experiment, and the distance between this brace 11 and the stopper 12
  • the device capable of adjusting the axial relative position can ensure that the top position of the stopper 12 is adjustable, thereby being applicable to a variety of coupler tests.
  • Embodiment 1 is basically the same as Embodiment 1, and the difference from Embodiment 1 is that in this embodiment, as shown in FIG. 5 and FIG. 6, a slide is provided along the axial direction of the support 1 below the end of the support 1.
  • the groove 13 is provided with a slider 214 capable of sliding in the sliding groove 13 at the driving end of the disengagement driving member 21, and the driving end of the disengagement driving member 21 slides in the sliding groove 13 through the slider 214 to slidingly cooperate with the end of the support 1 .
  • the detachably connected end of the support member 1 is detached from the trolley, not only does the support member 1 and the first mounting base 2 have a relative vertical movement, but also a relatively small axial relative movement, the drive member 21 and the support member 1 are separated.
  • the sliding fit at the end can ensure that no jamming will occur due to the axial relative movement during the pushing process.
  • the above embodiments only include the case where one end of the support member 1 in the starting protection device is abutted on the trolley, and the case where one end of the support member 1 in the starting protection device is abutted on the mounting seat can also be conceived from this.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
  • Testing Of Engines (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

一种用于动车组车钩实验的启动保护装置，设于用于实验的两个台车之间，启动保护装置在实验装置启动阶段顶紧于两个台车之间并代替车钩受压，启动保护装置在启动阶段完成后从两个台车之间脱离。

Description

一种用于动车组车钩实验的启动保护装置 技术领域
本发明涉及一种轨道车辆连接器的保护部件，尤其是涉及一种用于动车组车钩实验的启动保护装置，属于机车车辆安全领域。
背景技术
列车车钩是用来实现机车和车辆或车辆和车辆之间的连挂，传递牵引力及冲击力，并使车辆之间保持一定距离的车辆部件。随着轨道列车运行速度的不断提高，起着连接各车节作用的车钩应当不断进行实验并改良。
现有的大多数针对车钩的实验都是静压试验，而作为轨道列车中速度较高的动车组，在设计其中间车钩时，发生事故产生的变形序列是需要考虑的因素之一，但以现有的常规静压试验无法验证动车组车钩是否满足设计要求，因此需要对动车组车辆碰撞过程中车钩的变形序列进行模拟，以确定动车组的车钩是否能按照设计进行作用。
进行动车组车辆碰撞实验时，实验装置要达到EN15227标准要求的试验速度的阶段，此前实验装置的两个台车需要经历后一台车顶推前一台车使二者达到同步同速运行的启动阶段，该阶段由于加速度较大，施加给车钩的压力大大超出正常范围，此时车钩中压溃管会受压发生作用并压缩，从而无法进行后续完整的车钩碰撞实验，十分有碍于车钩的性能测定，使实验结果偏离事实。
发明内容
本发明所要解决的技术问题是，克服以上背景技术中提到的不足和缺陷，提供一种结构简单、不影响试验过程和可代替车钩承受启动阶段的压力的用于动车组车钩实验的启动保护装置。
为解决上述技术问题，本发明提出的技术方案为：
一种用于动车组车钩实验的启动保护装置，所述启动保护装置设于用于所述实验的两个台车之间，所述启动保护装置在实验装置启动阶段顶紧于两个台车之间并代替所述车钩受压，所述启动保护装置在启动阶段完成后从两个台车之间脱离。
作为上述技术方案的进一步改进：
所述启动保护装置包括支撑件、装设于一个台车上的第一安装座和装设于另一个台车上的第二安装座，所述支撑件的一端与所述第二安装座铰接，所述支撑件的另一端在实验装置启动阶段顶紧于台车或第一安装座上，在启动阶段完成后与所述第一安装座脱离。
所述第一安装座包括一脱离驱动件，所述脱离驱动件的驱动端能推动支撑件从顶紧状态 中脱离。
所述支撑件包括撑杆和连接于撑杆下方的挡块，所述撑杆的端部搭接于台车上表面，所述挡块顶设于台车的端面。
所述脱离驱动件还包括连杆、定位件和伸缩驱动器，所述定位件和伸缩驱动器分设于撑杆两侧，所述连杆的一端与定位件连接，另一端与伸缩驱动器连接，且所述连杆设于撑杆下方或穿设于撑杆中。
所述第一安装座还包括一固定连接于台车上表面的限位框，所述限位框框设于撑杆的端部外并限制撑杆的端部横向移动。
所述撑杆的端部下方沿撑杆的轴向设有均匀排列的螺纹孔，所述挡块上设有与该列螺纹孔间隔相同的若干通孔，所述挡块由穿过通孔并与螺纹孔紧固的螺栓固定于撑杆上。
所述支撑件的端部下方沿支撑件的轴向设有一滑槽，所述脱离驱动件的驱动端设有一能在滑槽中滑动的滑块，所述脱离驱动件的驱动端通过滑块在滑槽中滑动与支撑件的端部滑动配合。
所述第二安装座包括一安装板，所述支撑件的端部铰接于安装板的板面上。
与现有技术相比，本发明的有益效果为：
本发明的用于动车组车钩实验的启动保护装置，在实验装置启动阶段顶紧于两个台车之间并代替车钩受压，在启动阶段完成后从两个台车之间脱离。当动车组车钩的实验装置处于驱动状态时，启动保护装置代替车钩受压力，防止启动阶段产生的强压力使车钩的压溃管压缩，使后续的车钩碰撞实验可以完整的进行，不会妨碍车钩的性能测定；并且启动保护装置使两个台车之间连通，提高了传力效果，加快了两个台车运行速度达到一致的进程，使动车组车钩实验装置更快的进入实验状态，提高了实验效率；动车组车钩实验装置达到实验状态时，启动保护装置松脱，使车钩进入实验状态，使车钩碰撞实验可以如常进行，这种可松脱的启动保护装置提高了车钩碰撞实验的准确性与可靠性，还加快了实验进程，节省了大量时间。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，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的附图。
图1是实施例1中的用于动车组车钩实验的启动保护装置的三维结构示意图；
图2是实施例1中的用于动车组车钩实验的启动保护装置的主视结构示意图；
图3是实施例1中支撑件顶撑状态的结构示意图；
图4是实施例1中支撑件松脱状态的结构示意图；
图5是实施例2中支撑件顶撑状态的结构示意图；
图6是实施例2中支撑件松脱状态的结构示意图。
图例说明：
1、支撑件；11、撑杆；12、挡块；13、滑槽；2、第一安装座；21、脱离驱动件；211、连杆；212、定位件；213、伸缩驱动器；214、滑块；22、限位框；3、第二安装座；31、安装板。
具体实施方式
为了便于理解本发明，下文将结合说明书附图和较佳的实施例对本发明做更全面、细致地描述，但本发明的保护范围并不限于以下具体实施例。
实施例1：
如图1至图4所示，本实施例的用于动车组车钩实验的启动保护装置，启动保护装置设于用于实验的两个台车之间，启动保护装置在实验装置启动阶段顶紧于两个台车之间并代替车钩受压，启动保护装置在启动阶段完成后从两个台车之间脱离。当动车组车钩的实验装置处于驱动状态时，启动保护装置代替车钩受压力，防止启动阶段产生的强压力使车钩的压溃管压缩，使后续的车钩碰撞实验可以完整的进行，不会妨碍车钩的性能测定；并且启动保护装置使两个台车之间连通，提高了传力效果，加快了两个台车运行速度达到一致的进程，使动车组车钩实验装置更快的进入实验状态，提高了实验效率；动车组车钩实验装置达到实验状态时，启动保护装置松脱，使车钩进入实验状态，使车钩碰撞实验可以如常进行，这种可松脱的启动保护装置提高了车钩碰撞实验的准确性与可靠性，还加快了实验进程，节省了大量时间。
本实施例中，启动保护装置包括支撑件1、装设于一个台车上的第一安装座2和装设于另一个台车上的第二安装座3，支撑件1的一端与第二安装座3铰接，支撑件1的另一端在实验装置启动阶段顶紧于台车或第一安装座2上，在启动阶段完成后与第一安装座2脱离。第一安装座2包括一脱离驱动件21，脱离驱动件21的驱动端能推动支撑件1从顶紧状态中脱离。第二安装座3包括一安装板31，支撑件1的端部铰接于安装板31的板面上。
本实施例中，支撑件1包括撑杆11和连接于撑杆11下方的挡块12，撑杆11的端部搭接于台车上表面，挡块12顶设于台车的端面。
本实施例中，脱离驱动件21还包括连杆211、定位件212和伸缩驱动器213，定位件212和伸缩驱动器213分设于撑杆11两侧，连杆211的一端与定位件212连接，另一端与伸缩驱 动器213连接，且连杆211设于撑杆11下方或穿设于撑杆11中，连杆211与撑杆11滑动连接，并能受伸缩驱动器213的驱动端顶推架起撑杆11。撑杆11的端部脱离台车时，支撑件1与第一安装座2不仅存在竖直向相对运动，还存在较小的轴向相对运动，连杆211与支撑杆11滑动连接可以保证在顶推过程中不会因轴向相对运动产生卡死的情况。
本实施例中，第一安装座2还包括一固定连接于台车上表面的限位框22，限位框22框设于撑杆11的端部外并限制撑杆11的端部横向移动。
本实施例中，撑杆11的端部下方沿撑杆11的轴向设有均匀排列的螺纹孔，挡块12上设有与该列螺纹孔间隔相同的若干通孔，挡块12由穿过通孔并与螺纹孔紧固的螺栓固定于撑杆11上，并能调节与撑杆11之间的轴向相对位置。由于车钩本身因型号、结构或材质等因素轴向总长度可能会有变化，因此需要在实验时相应调整实验装置中两个台车的间距，而这种撑杆11和挡块12之间的轴向相对位置可调节的装置，可以保证挡块12的顶设位置可调，从而可以适用于多种车钩试验。
实施例2：
本实施例与实施例1基本相同，与实施例1的区别点在于，本实施例中，如图5和图6所示，支撑件1的端部下方沿支撑件1的轴向设有一滑槽13，脱离驱动件21的驱动端设有一能在滑槽13中滑动的滑块214，脱离驱动件21的驱动端通过滑块214在滑槽13中滑动与支撑件1的端部滑动配合。支撑件1可拆连接的端部脱离台车时，支撑件1与第一安装座2不仅存在竖直向相对运动，还存在较小的轴向相对运动，脱离驱动件21与支撑件1的端部滑动配合，可以保证在顶推过程中不会因轴向相对运动产生卡死的情况。
以上实施例中仅包含了启动保护装置中支撑件1的一端顶设于台车上的情况，启动保护装置中支撑件1的一端顶设于安装座上的情况也可以由此设想得出。
以上所述仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上述实施例。对于本领域的技术人员来说，在不脱离本发明的技术构思前提下所得到的改进和变换也应视为本发明的保护范围。

Claims (9)

  1. 一种用于动车组车钩实验的启动保护装置，其特征在于：所述启动保护装置设于用于所述实验的两个台车之间，所述启动保护装置在实验装置启动阶段顶紧于两个台车之间并代替所述车钩受压，所述启动保护装置在启动阶段完成后从两个台车之间脱离。
  2. 根据权利要求1所述的用于动车组车钩实验的启动保护装置，其特征在于：所述启动保护装置包括支撑件(1)、装设于一个台车上的第一安装座(2)和装设于另一个台车上的第二安装座(3)，所述支撑件(1)的一端与所述第二安装座(3)铰接，所述支撑件(1)的另一端在实验装置启动阶段顶紧于台车或第一安装座(2)上，在启动阶段完成后与所述第一安装座(2)脱离。
  3. 根据权利要求2所述的用于动车组车钩实验的启动保护装置，其特征在于：所述第一安装座(2)包括一脱离驱动件(21)，所述脱离驱动件(21)的驱动端能推动支撑件(1)从顶紧状态中脱离。
  4. 根据权利要求3所述的用于动车组车钩实验的启动保护装置，其特征在于：所述支撑件(1)包括撑杆(11)和连接于撑杆(11)下方的挡块(12)，所述撑杆(11)的端部搭接于台车上表面，所述挡块(12)顶设于台车的端面。
  5. 根据权利要求4所述的用于动车组车钩实验的启动保护装置，其特征在于：所述脱离驱动件(21)还包括连杆(211)、定位件(212)和伸缩驱动器(213)，所述定位件(212)和伸缩驱动器(213)分设于撑杆(11)两侧，所述连杆(211)的一端与定位件(212)连接，另一端与伸缩驱动器(213)连接，且所述连杆(211)设于撑杆(11)下方或穿设于撑杆(11)中。
  6. 根据权利要求5所述的用于动车组车钩实验的启动保护装置，其特征在于：所述第一安装座(2)还包括一固定连接于台车上表面的限位框(22)，所述限位框(22)框设于撑杆(11)的端部外并限制撑杆(11)的端部横向移动。
  7. 根据权利要求4至6中任一项所述的用于动车组车钩实验的启动保护装置，其特征在于：所述撑杆(11)的端部下方沿撑杆(11)的轴向设有均匀排列的螺纹孔，所述挡块(12)上设有与该列螺纹孔间隔相同的若干通孔，所述挡块(12)由穿过通孔并与螺纹孔紧固的螺栓固定于撑杆(11)上。
  8. 根据权利要求3所述的用于动车组车钩实验的启动保护装置，其特征在于：所述支撑件(1)的端部下方沿支撑件(1)的轴向设有一滑槽(13)，所述脱离驱动件(21)的驱动端设有一能在滑槽(13)中滑动的滑块(214)，所述脱离驱动件(21)的驱动端通过滑块(214)在滑槽(13)中滑动与支撑件(1)的端部滑动配合。
  9. 根据权利要求3所述的用于动车组车钩实验的启动保护装置，其特征在于：所述第二 安装座(3)包括一安装板(31)，所述支撑件(1)的端部铰接于安装板(31)的板面上。
PCT/CN2019/089167 2018-06-04 2019-05-30 一种用于动车组车钩实验的启动保护装置 Ceased WO2019233333A1 (zh)

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