Compression mechanism capable of preventing carriage back door from clamping garbage

The invention discloses a compression mechanism capable of preventing a carriage back door from clamping garbage, belongs to the field of garbage compressors, and solves the problem arising from the fact that garbage is clamped between a back small door and a door frame after garbage compression of a conventional garbage compressor.. The adopted technical scheme is characterized in thatthe compression mechanism capable of preventing the carriage back door from clamping the garbage comprises a lift type carriage back small door; a door lifting mechanism is mounted on the carriage back small door for controlling lifting of the carriage back small door; a compressor shell is arranged on the outer side of the carriage back small door; a main compression head performing a reciprocating motion is mounted in the compressor shell; and a secondary compression head is arranged at the bottom of the front end of the main compression head. 本发明的可防止车厢后门夹垃圾的压缩机构属于垃圾压缩机领域，解决了现有垃圾压缩机压缩垃圾后，后小门与门框之间夹杂垃圾的问题，采用方案为：可防止车厢后门夹垃圾的压缩机构，