Train switch protection device

The utility model discloses a train switch protection device, including linear guide, guardrail, actuating mechanism, locking mechanism and positioning mechanism. The guardrail lies in between two rails and lies in sleeper top, the lower extreme and the linear guide sliding fit of guardrail, actuating mechanism includes motor and lead screw, and the lower extreme screw -thread fit of this lead screw and guardrail, locking mechanism include locking arm, electromagnetic switch and spring bolt, and the locking arm lies in between two adjacent sleepers and be fixed with the guardrail, and the upper end of locking arm is equipped with locking part, and electromagnetic switch installs on the sleeper and lies in the locking part top, positioning mechanism includes two limit switch and the frizzen that is used for triggering limit switch, two spacing all installations on the lateral wall of sleeper, and this frizzen is located between two limit switch. The utility model discloses can solve the problem of the unable adjustment position of present guardrail, it is applicable in the rail vehicle of multiple inboard distance.