Positioning embracing ring and positioning device for mounting elbow joint and main valve

The utility model relates to the field of joint installation, and discloses a positioning embracing ring and a positioning device used for installing an elbow joint and a main valve, the positioning embracing ring comprises an embracing ring body and a positioning pin, the bottom edge of the embracing ring body is provided with a positioning groove with a downward opening, and the positioning pin is connected to the peripheral wall of the embracing ring body. The positioning pin is parallel to the central axis of the embracing ring body, and the top end of the positioning pin axially protrudes out of the top edge of the embracing ring body. According to the utility model, the simplicity and convenience of operation and the installation efficiency of the elbow joint are effectively improved, and the technical requirements on installation personnel are effectively reduced. 本实用新型涉及接头安装领域，公开了一种定位抱环和用于弯管接头与主阀安装的定位装置，定位抱环包括抱环本体和定位销，抱环本体的底沿开设有开口朝下的定位凹槽，定位销连接于抱环本体的外周壁上，定位销与抱环本体的中心轴线平行，定位销的顶端轴向凸出于抱环本体的顶沿。本实用新型有效提高操作的简