Connecting structure of air chamber parking brake device

The utility model belongs to the technical field of heavy trucks, and particularly relates to a connecting structure of an air chamber parking brake device. The connecting structure comprises a connecting rod (9) and an ejector rod (10), a thread is arranged at one end of the connecting rod (9), an annular groove is formed in the middle of the connecting rod (9), a pin hole is formed in the otherend of the connecting rod (9), the ejector rod (10) is of a cylinder structure, the thread is arranged on the inner circumference of the ejector rod (10), and one end of the connecting rod (9) is in threaded connection with one end of the ejector rod (10). The occupied space is small, the parking brake can be released without screwing out the connecting rod, and the space arrangement of the wholevehicle is optimized. 本实用新型属于重型卡车技术领域，具体涉及一种气室驻车制动装置的连接结构。该连接结构包括连接杆(9)和顶杆(10)；连接杆(9)的一端设置有螺纹，连接杆(9)中部设置有环形槽，连接杆(9)的另一端设置有销孔，顶杆(10)为筒结构，顶杆(10)的内周设置有螺纹，连接杆(9)的一端与顶杆(10)一端螺纹连接。实现了占用空间小，连接杆不旋出即可将驻车制动解除，优化整车空间布置。