Connection device for concrete hollow pile and steel pile head

The invention relates to a connection device for a concrete hollow pile and a steel pile head in the pile foundation engineering technology of the field of building engineering and particularly relates to a connection device for a pre-stressed concrete hollow pile and a steel pile head. The connection device comprises a hollow pile and a steel pile head, wherein the hollow pile is connected to the steel pile head; the connection device also comprises fixing bolts; an end plate is fixedly arranged at one end of the hollow pile; a plurality of uniformly-distributed main bar anchor holes are formed in the end plate; the main bar anchor holes are circular bolt holes; a bottom plate is fixed to one end, close to the end plate, of the steel pile head; bolt mounting holes are formed in the bottom plate; the number of the bolt mounting holes is equal to the number of the main bar anchor holes; the positions of the bolt mounting holes correspond to the positions of the main bar anchor holes; the fixing bolts penetrate through the bottom plate through the bolt mounting holes and are anchored into the end plate through the corresponding main bar anchor holes, so that the steel pile head is fixedly connected to the hollow pile. The connection device for the concrete hollow pile and the steel pile head has the beneficial effects that the hollow pile and the steel pile head can be connected with each other through the bolts due to the bolt mounting holes; the connection difficulty and labor cost are reduced; the welding pollution is reduced and the economic benefit is increased.