Local retainer

The local retainer comprises a retainer body, and the retainer body is provided with an inner arc surface and an outer arc surface which are coaxially arranged, a front end face and a rear end face which are oppositely arranged in the axis direction, and a left side face and a right side face which are arranged on the two sides in the circumferential direction. The local retainer is used for repairing the coupler, so that the service life of the coupler is prolonged, waste is really turned into wealth, localization of coupler repairing is achieved, the service life of the repaired coupler is prolonged, and meanwhile the premise is provided for multiple times of repairing of the coupler. 本实用新型涉及一种局部保持架，包括保持架本体，所述保持架本体具有同轴线设置的内圆弧面和外圆弧面、沿轴线方向相对设置的前端面和后端面、以及沿周向两侧设置的左侧面和右侧面。利用本实用新型的局部保持架来对联轴器进行修复，提高了联轴器的使用寿命，真正的实现"变废为宝"，不仅解决了联轴器修复国产化，通过修复的联轴器在寿命上得到提高的同时，也为联轴器的多次修复提供了前提。