Abstract: Disclosed is a connecting rod splicing device, including: a casing tube provided with a first positioning hole; an insertion tube provided with a reducing tube and a second positioning hole, where the reducing tube is inserted into one end of the casing tube, and the first positioning hole is communicated with the second positioning hole; a locking sleeve sleeved at one end of the casing tube and provided with a locking hole; a locking button rotatably arranged on the locking sleeve and provided with a button plate and a locking column; and an elastic rod configured to keep the locking column in an inserted state, where an elastic angle is formed between the elastic rod and the button plate, and the elastic angle enables that the locking column is pulled out of the first positioning hole and the second positioning hole when the locking button is pressed.

Abstract: The present invention discloses a dual-purpose wiper with a replaceable wiper strip, including a handle, a working head, a wiper strip, a wiper board, or the like. Mainly, the working head is provided with a sliding groove running through in a horizontal direction, and a sliding rib is correspondingly arranged on one side of the wiper strip, so that the wiper strip can be detachably and slidably engaged in the sliding groove through the sliding rib. In addition, the working head is further provided with a lock piece, and the lock piece can lock or unlock the sliding rib for sliding in the sliding groove, so that the wiper strip can be replaced arbitrarily and flexibly, and the wiper strip having an appropriate length can be configured according to an actual use need.