초록 ▼

A gun barrel unit for a toy gun includes: an inner barrel and an outer barrel, the inner barrel is axially inserted in the outer barrel, at least one rotary member is provided between the inner and outer barrels to allow for rotation of the inner barrel with respect to the outer barrel, and at least

A gun barrel unit for a toy gun includes: an inner barrel and an outer barrel, the inner barrel is axially inserted in the outer barrel, at least one rotary member is provided between the inner and outer barrels to allow for rotation of the inner barrel with respect to the outer barrel, and at least one eccentric weight is fixed in the inner barrel. The inner barrel is pivotable and the inner barrel is provided with the eccentric weight, so that even when the gun is held in an inclined position, the inner barrel still can return to a non-inclined manner to ensure the ballistic trajectory stability when firing. Besides, an engaging assembly is provided at the rear end of the inner barrel, so that the inner barrel can still be fixed to the outer barrel in a fixed manner to facilitate ballistic trajectory adjustment.

대표청구항 ▼

1. A gun barrel unit for a toy gun comprising: an inner barrel and an outer barrel, the inner barrel being axially inserted in the outer barrel, wherein at least one rotary member is provided between the inner and outer barrels to allow for rotation of the inner barrel with respect to the outer barr

1. A gun barrel unit for a toy gun comprising: an inner barrel and an outer barrel, the inner barrel being axially inserted in the outer barrel, wherein at least one rotary member is provided between the inner and outer barrels to allow for rotation of the inner barrel with respect to the outer barrel, and at least one eccentric weight is fixed to the inner barrel and located at at least one connecting position, wherein a ballistic adjustment device is disposed at a rear end of the inner barrel, a slot is provided at an upper surface of the rear end of the inner barrel, the ballistic adjustment device at least includes a bullet barrel, a pressure assembly, and a rotary base, wherein the bullet barrel is an elastic member sleeved onto the rear end of the inner barrel, wherein at least two protruding blocks are formed on an inner surface of the rear end of the bullet barrel and located corresponding to the slot of the inner barrel, wherein the pressure assembly is located on the rear end of the bullet barrel to press the protruding blocks, wherein the rotary base is sleeved onto the bullet barrel and the pressure assembly, wherein an eccentric adjustment portion is provided on an inner surface of the rotary base and located corresponding to an upper end of the pressure assembly, wherein rotating the rotary base makes the eccentric adjustment portion press the pressure assembly, and the pressure assembly presses the bullet barrel to make the protruding blocks move downward toward the slot of the inner barrel. 2. The gun barrel unit for the toy gun as claimed in claim 1, wherein a fixing member is disposed at the rear end of the inner barrel and fixed around an outer surface of the bullet barrel, and includes an annular portion and a second connecting portion which are formed at two ends of the fixing member, respectively, wherein an engaging portion is formed between the annular portion and the second connecting portion, wherein an inserting hole is formed in the engaging portion for insertion of the pressure assembly, and the rotary base is sleeved onto the engaging portion. 3. The gun barrel unit for the toy gun as claimed in claim 2, wherein an engaging assembly is provided at the rear end of the inner barrel, and includes an inserting rod and a swingable link rod which are pivoted to each other, wherein a plurality of engaging holes is formed around the annular portion, wherein when the link rod swings, the inserting rod moves forward to engage in one of the engaging holes, so as to fix the inner barrel. 4. The gun barrel unit for the toy gun as claimed in claim 3, wherein the eccentric weight is located at the rear end of the outer barrel, wherein the connecting portion is connected to the eccentric weight, wherein an inner liner is fixed on the inner surface of the rear end of the outer barrel, and the rotary member is disposed between the inner liner and the inner barrel. 5. The gun barrel unit for the toy gun as claimed in claim 4, wherein the eccentric weight is provided at the front end thereof with an inserting portion which is to be inserted in the inner liner, and the rotary member is located between the inner liner and the inserting portion.