Abstract: A fuel hose line assembling apparatus comprises a base, a transmission, a fixing member and a hose fixing jig. The base comprises at least two chutes. The transmission and the hose fixing jig are mounted on two sides of the base respectively. An adjusting screw is movably installed in the pedestal and the fixing member is mounted on one side of the adjusting screw. Therefore, the fixing member is moved on the base by the adjusting screw driving. Moreover, the fixing member has a fixture jig for putting a nut therein and the hose fixing jig clips a hose fixedly. When a user drives the transmission to move the fixing member, the nut is firmly scabbarded in the hose line.

Abstract: A fuel hose line assembling apparatus comprises a base, a transmission, a fixing member and a hose fixing jig. The base comprises at least two chutes. The transmission and the hose fixing jig are mounted on two sides of the base respectively. An adjusting screw is movably installed in the pedestal and the fixing member is mounted on one side of the adjusting screw. Therefore, the fixing member is moved on the base by the adjusting screw driving. Moreover, the fixing member has a fixture jig for putting a nut therein and the hose fixing jig clips a hose fixedly. When a user drives the transmission to move the fixing member, the nut is firmly scabbarded in the hose line.

Abstract: A joint device in a pipeline includes a connecting body, a joining screw nut, a connecting joint and two fixing coils. The connecting body has a connecting pipe with an end thereof being a connector and another end thereof being another connector. The first connector is provided with an annular recess and the second connector has at least two annular recesses. The joining screw nut at an end thereof is provided with internal threads and at another end thereof has a radial hole and is used for engaging with the first connector. The connecting joint at an end thereof has a radial hole corresponding to one of the annular recess on the second connector and extends outward a screw rod portion with a conical end. One of fixing coils is inserted into the annular recess on the first connector via the radial hole of the joining screw nut and the other fixing coil is inserted into one of the annular recesses on the second connector via the radial hole of the connecting joint.

Abstract: A position-adjustable brake unit for a dual-purpose roller skate mainly includes a base fixedly mounted to a top of an open-bottomed cavity provided at a sole of the roller skate, a brake support pivotally connected to the base and being normally pushed downward by a first torsion spring, a brake block connected to a lower end of the brake support to move along with the same, and a stop lever pivotally connected to one side of the base and having a top portion normally pulled by a second torsion spring into engagement with either a top or a lateral notch provided on the brake support. When the roller skate functions like a roller skate, the stop lever is caused to engage with the top notch of the brake support, so that the latter is held in a lowered position and the brake block downward projects from the cavity.

Abstract: A dual-purpose roller skate includes a sole provided with front and rear open-bottomed cavities and two wheel units separately fixedly mounted in the two cavities. Each of the wheel units mainly includes a base fixedly mounted to a top of the cavity, a wheel support pivotally connected to the base and being normally pushed downward by a first torsion spring, a wheel rotatably connected to the wheel support, and a stop arm pivotally connected at an end to one side of the base and having a bent free end normally pushed by a second torsion spring into engagement with a slot provided on the base. The bent end of the stop arm projected into the slot is also adapted to detachably engage with either a top or a lateral notch provided on the wheel support.