Buffer device for full-hydraulic electro-hydraulic hammer

The utility model relates to the technical field of full-hydraulic electro-hydraulic hammers, in particular to a buffer device for a full-hydraulic electro-hydraulic hammer, which comprises an upper limit block and thread grooves, and the thread grooves are symmetrically arranged on one side of the upper end of the upper limit block. The buffering device overcomes the defects in the prior art, the buffering air cylinder and the buffering rods are arranged, the buffering air cylinder is installed in the middle of the upper end of the upper limiting block, the buffering rods are arranged on one side of the buffering air cylinder, and when a hammer head returns at a high speed, part of impact force can be counteracted under the combined action of the buffering air cylinder and the buffering rods; the hammer head can stably stay at the upper limit, oil leakage accidents caused by main valve damage are avoided, the buffer rod of the device is in threaded connection with the upper limit block through the threaded c