Pressure wave code transmitting device and pressure wave code receiving and transmitting system

The utility model discloses a pressure wave code transmitting device and a pressure wave code receiving and transmitting system. The pressure wave code transmitting device comprises a pressure supply module, a switch valve body, a switch valve seat and a valve element. A pressure channel is arranged on the switch valve seat, and the pressure channel is communicated with the underground; the switch valve body is provided with a pressure supply port, and the pressure supply port is communicated with the pressure supply module; the switch valve body and the switch valve seat are assembled to form a switch valve, a cavity is formed in the switch valve, and the valve element can move in the cavity; under the combined action of the pressure of the pressure supply module and the underground pressure, the pressure channel is opened or closed by the valve element. The pressure wave code sending device is safe, reliable and high in code sending efficiency. 本申请公开了一种压力波码发送装置和压力波码收发系统，压力波码发送装置包括供压模块、开关阀体、开关阀座和阀芯；所述开关阀座上设置