Braking system metal hose loose joint nut anti-retreating clamp

The utility model discloses a brake system metal hose loose joint nut anti-retreat clamp which comprises a clamp body, a card inserting opening is formed in the clamp body, and a memory metal ring penetrates through the clamp body. The clamping piece main body is inserted and clamped in the rear wall groove of the loose joint nut of the metal hose through the card inserting opening, the clamping piece main body is pressed and hooped through the special calipers, so that the inner wall of the clamping piece main body and the metal hose are attached and sealed, and the memory metal ring prevents the clamping piece main body from deforming and loosening; the problem of air leakage caused by loosening of the metal hose loose joint nut can be effectively solved. 本实用新型公开了一种刹车制动系统金属软管活接螺母防退卡夹，包括卡夹件主体，所述卡夹件主体上开设有插卡开口，卡夹件主体内贯穿有记忆金属圈。本实用新型通过插卡开口将卡夹件主体插卡在金属软管活接螺母后后壁槽内，并通过专用卡钳将卡夹件主体圧箍，使卡夹件主体的内壁与金属软管贴合密封，记忆金属圈防止卡夹件主体形变松动，能够有效阻止金属软管活接螺母处松动漏风的问题。