The utility model provides an anti-stripping fastening component for the air-conditioning cover plate of a rail vehicle, which belongs to the air-conditioning technical field of the rail vehicle. The adopted technical scheme is: an anti-stripping fastening component for the air-conditioning cover plate of a rail vehicle, including a nut positioned on the box body and a bolt matching the nut through the air-conditioning cover plate, the key lies in the described above. A retaining ring is added after the bolt passes through the air-conditioning cover plate; the inner surface of the nut is smooth and the lower part is threaded; when the bolt breaks away from the threaded part of the nut, the air-conditioning cover plate is limited by the retaining ring to form an anti-stripping structure. The beneficial effects are as follows: the anti-stripping fastening assembly provided for the air-conditioning cover plate of the railway vehicle is simple in structure and ingenious in design, which avoids the bolt shedding when the air-conditioning cover plate is dismantled and assembled, saves manpower and greatly improves work efficiency; in the further improved technical scheme, the standard parts of bolts and baffle rings are mostly adopted, which are convenient for replacement and large-scale regulation. The mould is suitable for use. The self-made nuts are matched with the standard parts of bolts, which is convenient for standardized manufacture and has good versatility.
【技术实现步骤摘要】
一种轨道车辆空调盖板用防脱紧固组件
本技术涉及轨道车辆空调
,具体涉及一种轨道车辆空调盖板用防脱紧固组件。
技术介绍
轨道车辆空调机组为了便于维护往往设有多个检修盖板,检修盖板通过紧固件安装于箱体上,采用的紧固件通常为螺钉或者螺栓等,最常用选用国标M6或M8紧固件,然而,由于紧固件自身不具备防脱出功能,在拆下盖板检修维护过程中,盖板螺栓及其配套使用的平垫、弹垫极易出现脱落或丢失的情况,需要人工捡件或采用磁性安装工具吸取紧固件,但由于工具磁性较弱,很大部分不能被吸上来,因此,造成检修中断、人力或物力浪费等;另外,检修后盖板安装时需重新组装螺栓、弹垫和平垫,对于包括较多紧固件的空调机组来说,仅安装紧固件则操作耗时长、工作量大,造成工作效率低。上述问题给空调机组的检修、拆卸及安装工作带来了诸多不便,急需改进。
技术实现思路
为解决空调盖板紧固件易脱落、耗费人力、检修效率低的技术问题,本技术提供一种轨道车辆空调盖板用防脱紧固组件,通过在穿过空调盖板的螺栓上增设挡圈,并将与其配合的螺母内侧上部改造为光滑面的技术方案,实现了螺栓脱离螺母螺纹部后,仍然限位在空调盖板上,避免了松脱掉下,节省了人力,提高了检修维护效率。本技术采用的技术方案是:一种轨道车辆空调盖板用防脱紧固组件,包括定位在箱体上的螺母和穿过空调盖板与螺母配合的螺栓,关键在于,所述螺栓穿过空调盖板后加设挡圈;所述螺母内侧表面上部为光滑面、下部为螺纹,所述螺栓脱离螺母的螺纹部时借助挡圈限位在空调盖板上,形成防脱结构。优选的,所述挡圈为弹性挡圈。优选的,所述挡圈为梅花孔挡圈。进一步的,所述螺栓设有轴肩,轴肩以上 ...
【技术保护点】
1.一种轨道车辆空调盖板用防脱紧固组件,包括定位在箱体(6)上的螺母(7)和穿过空调盖板(4)与螺母(7)配合的螺栓(1),其特征在于,所述螺栓(1)穿过空调盖板(4)后加设挡圈(5);所述螺母(7)内侧表面上部为光滑面、下部为螺纹,所述螺栓(1)脱离螺母(7)的螺纹部时借助挡圈(5)限位在空调盖板(4)上,形成防脱结构。
【技术特征摘要】
1.一种轨道车辆空调盖板用防脱紧固组件,包括定位在箱体(6)上的螺母(7)和穿过空调盖板(4)与螺母(7)配合的螺栓(1),其特征在于,所述螺栓(1)穿过空调盖板(4)后加设挡圈(5);所述螺母(7)内侧表面上部为光滑面、下部为螺纹,所述螺栓(1)脱离螺母(7)的螺纹部时借助挡圈(5)限位在空调盖板(4)上,形成防脱结构。2.根据权利要求1所述的防脱紧固组件,其特征在于,所述挡圈(5)为弹性挡圈。3.根据权利要求1所述的防脱紧固组件,其特征在于,所述挡圈(5)为梅花孔挡圈。4.根据权利要求1所述的防脱紧固组件,其特征在于,所述螺栓(1)设有轴肩(1-1),轴肩(1-1)以上为光滑表面,轴肩(1-1)以下设外螺纹;所述轴肩(1-1)距挡圈(5)下端面的距离L1大于轴肩(1-1)以下的长度L...
【专利技术属性】
技术研发人员:祝丁号,倪素磊,
申请(专利权)人:石家庄国祥运输设备有限公司,
类型:新型
国别省市:河北,13
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