Pipe conveying device and switching valve thereof

The invention discloses a switching valve which comprises a valve body, a valve core, a driving device and a main pipe. A plurality of branch pipes which are communicated and sequentially arranged on one side of the outer wall of the valve body are communicated with the tail end of the main pipe. A plurality of output pipes are communicated with the other side of the outer wall of the valve body. Through holes for communicating the corresponding branch pipes with the output pipes are formed in the valve core. When the valve core slides to the set position inside the valve body, one branch pipe on one side of the outer wall of the valve body is communicated with the corresponding output pipe on the other side of the outer wall of the valve body through the corresponding through hole; the number of the output pipes of the switching valve is adjustable, no large turning angle exists in the switching process, the switching resistance and impact on the valve core are small, and therefore the switching valve can achieve on-off switching of the pipes in a long-term and efficient mode. The invention further discloses a pipe conveying device comprising the switching valve.