The utility model discloses a connection structure and an assembly method of a hose assembly, the structure includes a lining core, a connecting nut, a metal sleeve and a sealing ring, the lining core is successively provided with a sealing groove, a locking groove and a fixing boss, the connecting nut is sleeved on the rear end of the lining core, and the inner wall of the rear end of the connecting nut is provided with a ring boss which is matched with the fixing boss, and the metal The sleeve and the sealing ring are installed at the front end of the lining core, the sealing ring is located in the sealing groove, the inner wall of the metal sleeve is provided with an anti detaching hook, and the rear end is embedded in the locking groove, and the anti detaching hook is embedded in the outer layer of the hose to form a buckle after the hose is inserted into the front section of the lining core. The utility model uses the assembly machinery to push the inner expanding push rod from the rear port of the lining core to the whole lining core, so as to enlarge the inner diameter of the lining core under the action of the inner expanding push rod, to achieve the close connection between the metal sleeve and the outer layer of the hose, and the sealing connection between the sealing ring and the inner layer of the hose.
【技术实现步骤摘要】
一种软管总成的联接结构
本技术涉及通用软管(PP、PTFE及橡胶管)总成管接头,具体涉及一种软管总成的联接结构及其装配方法。
技术介绍
软管总成中软管与金属接头的联接,传统多采用内插衬芯扣压尾套的方式,利用软管的压缩变形的回弹力将软管和金属接头的衬芯紧紧联接在一起,其缺点在于:1,为保持衬芯的强度,其通径远小于软管的内径,而且在扣压过程还会产生变形---缩颈现象,严重影响了介质的通过量;2,衬芯与软管内径之间的台阶,会对传输介质形成死角,既降低了传递压力也会影响了传输产品的品质;3,由于铆爪周向扣压工艺的局限性,扣压时在软管周向形成的应力是不均匀的,在冷热疲劳和长期时效后,易形成泄漏通道,特别对传输气体介质的管路,这缺陷尤为明显。
技术实现思路
为克服上述现有技术存在的缺陷,本技术提供了一种新型软管总成的联接结构及其装配方法;该结构可将软管和金属接头有效地联接在一起,满足软管总成所要求的拉伸强度要求和密封作用。本技术采取的技术方案如下:一种软管总成的联接结构,其包括衬芯、联接螺母、金属套和密封圈,所述衬芯的前端外壁上设有密封凹槽,后端外壁上设有固定凸台,在密封凹槽和固定凸台之间设有锁定凹槽,所述联接螺母套装在衬芯后端,且联接螺母的后端内壁上设有与固定凸台相配合的环状凸台,所述金属套和密封圈安装在衬芯的前端,密封圈位于密封凹槽内,金属套的内壁上设有防脱倒刺,后端设有圆形锁孔,所述圆形锁孔的四周边沿嵌入锁定凹槽,防脱倒刺在软管插入衬芯前段后嵌入软管外层形成扣接。进一步的,所述密封凹 ...
【技术保护点】
1.一种软管总成的联接结构,其特征在于包括衬芯、联接螺母、金属套和密封圈,所述衬芯的前端外壁上设有密封凹槽,后端外壁上设有固定凸台,在密封凹槽和固定凸台之间设有锁定凹槽,所述联接螺母套装在衬芯后端,且联接螺母的后端内壁上设有与固定凸台相配合的环状凸台,所述金属套和密封圈安装在衬芯的前端,密封圈位于密封凹槽内,金属套的内壁上设有防脱倒刺,后端设有圆形锁孔,所述圆形锁孔的四周边沿嵌入锁定凹槽,防脱倒刺在软管插入衬芯前段后嵌入软管外层形成扣接。/n
【技术特征摘要】
1.一种软管总成的联接结构,其特征在于包括衬芯、联接螺母、金属套和密封圈,所述衬芯的前端外壁上设有密封凹槽,后端外壁上设有固定凸台,在密封凹槽和固定凸台之间设有锁定凹槽,所述联接螺母套装在衬芯后端,且联接螺母的后端内壁上设有与固定凸台相配合的环状凸台,所述金属套和密封圈安装在衬芯的前端,密封圈位于密封凹槽内,金属套的内壁上设有防脱倒刺,后端设有圆形锁孔,...
【专利技术属性】
技术研发人员:王亮燕,沈汪兵,冯程,王宗浩,韩艳春,
申请(专利权)人:南京利德东方橡塑科技有限公司,
类型:新型
国别省市:江苏;32
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。