The technical scheme of the utility model is the technical scheme of the utility model is a kind of oil drain bolt improved, including the head and the rod, the rod part is provided with an outer thread, the rod part center along the axial direction through the through hole on under the two end of the oil bolt, the rod part near the head office along the radial direction is provided with a hole, the oil outlet is communicated with the through hole, the head portion of the outer surface of a bar near the limit plate extending outward, the rod part is close to the limit plate is arranged at the oil guide, guide oil at the outside diameter less than the diameter of rod, oil the oil guide holes in the part, the through holes are arranged on the surface of a thread, the thread starts in the head end top, bottom thread terminates in a through hole below the oil hole, oil seal stud from the head is screwed into the hole and the thread sealing connection. The utility model has the advantages of simple structure, safe and reliable use, convenient processing, and the oil discharge, the direction and the time can be controlled when the oil is put out, which can effectively prevent the oil pollution operator ejected from the oil discharge.
【技术实现步骤摘要】
一种改进型放油螺栓
本技术涉及一种螺栓,尤其是涉及一种改进型放油螺栓。
技术介绍
机油是保障发动机旋转元件正常稳定工作的重要物质,在发动机运转过程中,机油温度较高,各元件之间摩擦产生的磨屑混入机油,导致机油污染变质,需要定期进行更换。螺栓作为最常见的紧固元件被应用于各种领域,放油螺栓由头部和螺杆两部分组成,安装在发动机油底壳底部,用于控制油底壳机油的存储和排放。现有的放油方式是将螺栓从油底壳慢慢旋出,在取下螺栓的瞬间,高温的机油飞溅,容易烫伤操作者,且产生污染。目前,申请号CN201410471496公开了一种改进型放油螺栓,这种放油螺栓虽然可以在一定程度上提高放油操作的安全性,但是在放油过程中,油孔是随着螺栓一同旋转而被开启的,操作者无法对出油方向进行预判和调节,导致在放油瞬间,喷射的油液还是有可能会污染操作者。另外,无论放油螺栓是否开启,导油部与油底壳通过放油通孔一直相连通,这种结构实际上靠限位盘来密封放油通道,容易因限位盘与油底壳外侧存在间隙而发生油液渗漏。同时,由于导油部外径较小,在限位盘与油底壳分离瞬间,油液将从导油部喷涌出来,污染螺帽和油底壳。
技术实现思路
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【技术保护点】
一种改进型放油螺栓,包括头部(1)和杆部(2),所述杆部(2)开设有外螺纹,其特征在于:所述杆部(2)中心有沿轴向贯穿放油螺栓上下两端面的通孔(3),所述杆部(2)靠近头部(1)处沿径向开设有出油孔(4),出油孔(4)与通孔(3)相连通,所述头部(1)靠近杆部(2)处外表面有向外延伸的限位盘(5),所述杆部(2)靠近限位盘(5)处开设有导油部(6),导油部(6)处的外径小于杆部(2)外径,所述出油孔(4)位于导油部(6)处,所述通孔(3)内表面开设有螺纹,螺纹顶端起始于头部(1)上端面,螺纹底端终止于出油孔(4)下方的通孔(3)内,封油螺柱(7)从头部(1)旋入通孔(3)且两者螺纹密封连接。
【技术特征摘要】
1.一种改进型放油螺栓,包括头部(1)和杆部(2),所述杆部(2)开设有外螺纹,其特征在于:所述杆部(2)中心有沿轴向贯穿放油螺栓上下两端面的通孔(3),所述杆部(2)靠近头部(1)处沿径向开设有出油孔(4),出油孔(4)与通孔(3)相连通,所述头部(1)靠近杆部(2)处外表面有向外延伸的限位盘(5),所述杆部(2)靠近限位盘(5)处开设有导油部(6),导油部(6)处的外径小于杆部(2)外径,所述出油孔(4)位于导油部(6)处,所述通孔(3)内表面开设有螺纹,螺纹顶端起始于头部(1)上端面,螺纹底端终止于出油孔(4)下方的通孔(3)内,封油螺柱(7)从头部(1)旋入通孔(3)且两者螺纹密封连接。2.根据权利要求1所述的一种改进型放油螺栓,其特征在...
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