Coaxial loudspeaking device

A coaxial loudspeaking device comprises a basin stand, a bass module, a high pitch module and a heat dissipation disc. The coaxial loudspeaking device is provided with the basin stand, the bass module, the high pitch module and the heat dissipation disc. In an actual application process, the high pitch support is provided with a through hole. After the locking piece penetrates through the throughhole, the end part of the locking piece is screwed in the locking hole, and the high-pitch vibration unit is stably mounted on the low-pitch module, namely the high-pitch vibration unit is mounted onthe low-pitch module in a screwing manner, so that compared with a traditional bonding manner, the high-pitch vibration unit cannot be degummed due to over-high temperature; besides, heat in the coaxial loudspeaker device can be discharged from the heat conduction pipe body through the heat conduction holes so that heat dissipation operation can be completed, and burnout of the coaxial loudspeakerdevice caused by excessive