Diesel engine oil injector hold -down device

The utility model discloses a diesel engine oil injector hold -down device, its structure is: the front -end design of clamp plate is the U -shaped, and the clamp plate is two facades that are parallel to each other with sprayer binding site, and open at the center of clamp plate has the bolt hole. The top of bolt hole is equipped with spherical face recess, and the sprayer bolt also is equipped with spherical face boss with the position of the spherical face groove phase contact of clamp plate, and two spherical facial featuress are matchd. The facade for being parallel to each other is all processed to the both sides face of cylinder sprayer, and the width of facade is less than or equal to the interval of two facades of clamp plate, and with two facades reeves of clamp plate, very little interval can guarantee like this that the vertical angle of sprayer is unlikely to the run -off the straight with the firm chucking of cylinder sprayer. The sprayer bolt passes the clamp plate, fixes the sprayer on the cylinder head. Close the fastening mode of present packing ring and sprayer bolt separation as an organic whole, the pressing plate bolt hole is increaseed with sprayer bolt area of contact, makes its fastening power obtain the reinforcing.