Abstract: A tube cutter comprises a main body, a cutting member, a first elastic member and a second elastic member. The main body has a cutting space and a rail. The cutting member is engaging the rail for movement and has at least a portion protruding into the cutting space; wherein the cutting member has a first preload portion and a second preload portion. The first elastic member, which is received in the main body and engaged with the first preload portion, provides a first elastic force on the first preload portion which is parallel to a first normal direction thereby. The second elastic member, received in the main body and rested against the second preload portion, provides a second elastic force on the second preload portion which is parallel to a second normal direction thereby.

Abstract: A tube cutter comprises a main body, a cutting member and a base. The main body has a cutting space and a mounting portion corresponded to the cutting space. The cutting member, which is received in the main body, has a at least a portion protruding into the cutting space. The base has a first clamping portion and a second clamping portion; wherein the base is received in the mounting portion of the main body and can be switched between a first angle and a second angle. The first clamping portion is communicated with the cutting space to clamp a tube with a first predetermined diameter when the base is switched to the first angle. The second clamping portion is communicated with the cutting space to clamp a tube with a second predetermined diameter when the base is switched to the second angle.

Abstract: A tube cutter includes a main device, a blade and a controller. The main device includes a fixed member and a movable member, wherein the movable member is movably connected to the fixed member, and a cutting space is formed between the fixed member and the movable member. The blade is fixed to the main device, and the blade has a blade portion in the cutting space. The controller, which is provided on the main device, can be operated to move the movable member for changing a size of the cutting space.

Abstract: A tube cutter includes a main device, a blade and a controller. The main device includes a fixed member and a movable member, wherein the movable member is movably connected to the fixed member, and a cutting space is formed between the fixed member and the movable member. The blade is fixed to the main device, and the blade has a blade portion in the cutting space. The controller, which is provided on the main device, can be operated to move the movable member for changing a size of the cutting space.

Abstract: A pipe flaring tool includes a case member, a clamping member, a flaring module, a feeding member and a connecting member. The case member has a first end, a second end, a chamber and a bore at the first end and communicated with the chamber. The clamping member connected to the second end of the case member. The flaring module is received in the chamber, having a shaft and a flaring terminal. The flaring terminal is connected to an end of the shaft and proximal to the clamping member. An opposite end of the shaft is proximal to the bore of the case member to engage a power tool through the bore. A feeding member is received in the chamber. A connecting member is detachably connected to the flaring module to the feeding member, wherein the flaring module and the feeding member are turned and moved together.

Abstract: A pipe expanding device with a pipe-length fixing assembly is suitable for holding a pipe with a connecting end, and includes: a body including a first space and a second space; a clamping unit detachably disposed in the first space, and provided for insertion of the pipe, wherein the connecting end of the pipe is able to move back and forth within the second space; and the pipe-length fixing assembly is disposed in the second space and able to move back and forth toward the first space, and the connecting end of the pipe is stopped against the pipe-length fixing assembly. The pipe expanding device is capable of precisely fixing the expanding length, and improving the sealing of the joint between expanded pipes, and the pipe expanding operation is not limited by the user's experience.

Abstract: A clamping device of a tube flaring tool for firmly and precisely clamping a tube includes a base having a slot and a clamping assembly having two clamping members to clamp a tube therebetween. The clamping assembly is received in the slot of the base, and a gap is formed between a working end of the clamping assembly and a sidewall of the slot for a stopping member inserted into the gap. The stopping member has opposite sides abutting against the sidewall of the slot, the working end of the clamping assembly, and an end of the tube clamped by the clamping assembly to precisely position the tube at a predetermined portion for the following flaring task.

Abstract: A tube bender includes a bending tool and a bending base connected to the bending tool. The bending tool has an arched member. The bending base has a first plate, a second plate, a first block, and a second block. The first plate is separated from the second plate to form a bending space therebetween. The first and the second blocks are received in the bending space and pivoted on both the first plate and the second plate. A tube is adapted to be rested on the first and the second blocks while the arched member is able to be moved toward the tube to bend the tube. The first block and the second block are rotated automatically according to a curvature of the tube being bent.

Abstract: A rotary pipe sizing tool for expanding or shrinking a pipe includes a main member having a driving portion, a clamping device provided at an end of the driving portion of the main member; and a rotating mechanism provided between the main member and the clamping device. The clamping device is free to rotate relative to the main member through the rotating mechanism to make the rotary pipe sizing tool operate in a narrow or a space that is hard to reach.

Abstract: A tube flaring tool, which is adapted to clamp a tube and align the tube with a punch driver, includes a carrier having a clamping assembly slot and a punch assembly slot; a clamping assembly received in the clamping assembly slot of the carrier to clamp a tube; and a punch assembly having a main member and a plurality of punches movably coupled to the main member. The main member is movably received in the punch assembly slot, so that the main member of the punch assembly is able to be moved to select one of the punches to flare the tube.

Abstract: A pipe expanding device with a pipe-length fixing assembly is suitable for holding a pipe with a connecting end, and includes: a body including a first space and a second space; a clamping unit detachably disposed in the first space, and provided for insertion of the pipe, wherein the connecting end of the pipe is able to move back and forth within the second space; and the pipe-length fixing assembly is disposed in the second space and able to move back and forth toward the first space, and the connecting end of the pipe is stopped against the pipe-length fixing assembly. The pipe expanding device is capable of precisely fixing the expanding length, and improving the sealing of the joint between expanded pipes, and the pipe expanding operation is not limited by the user's experience.

Abstract: A rotary pipe sizing tool for expanding or shrinking a pipe includes a main member having a driving portion, a clamping device provided at an end of the driving portion of the main member; and a rotating mechanism provided between the main member and the clamping device. The clamping device is free to rotate relative to the main member through the rotating mechanism to make the rotary pipe sizing tool operate in a narrow or a space that is hard to reach.

Abstract: A tube jig device for clamping a tube to be expanded by a tube flaring tool includes a base and a height gauge. The base has a plurality of gripping holes, and each of the gripping holes has a round hole and an expanding hole. The height gauge, which has a plurality of stop portions, is movably connected to the base with the stop portions on the first surface and parallel to the first surface. The height gauge is moved to a position where the stop portions are above the expanding holes respectively for the tube clamped in the gripping hole to abut against and waiting to be expanded by the tube flaring tool.

Abstract: A pipe expanding device includes: a clamping assembly including a pipe expanding end, an opposite connecting end, and a receiving space in communication with the pipe expanding end and the connecting end; a pipe expanding assembly movably disposed in the receiving space; a connecting member disposed at the connecting end; and an elastic member disposed in the receiving space and located between the pipe expanding assembly and the connecting member to push the pipe expanding assembly back toward the connecting end after the pipe expanding assembly is moved toward the pipe expanding end. The elastic member is hidden in the clamping assembly and capable of automatically pushing the pipe expanding assembly back to its original position. Therefore, the motion of the pipe expanding assembly won't be affected by the displacement of the pipe expanding tool, and the pipe expanding assembling therefore won't get bent or fall off.

Abstract: A pipe bender includes: a body, a movable member, a return member, a stationary member, two adjustment members, two transverse positioning assemblies, two longitudinal positioning assemblies and a bending member. The movable member is disposed in the body, and an elastic member is disposed between the movable member and the body. A drive member and the return member are pivoted to the body, and the return member and the drive member are engaged with the rack of the body. The stationary member is fixed to the support portion of the body and arranged in a T-shaped manner with respect to the movable member. The two adjustment members are movably mounted at two ends of the stationary member to adjust a distance therebetween. A rotary block is fixed at the top of each of the adjustment members, and then the pipe bending member is mounted on the movable member.

Abstract: Provided is a plug-and-play wireless network extension system and a method of automatic connection for the system. The system at least has a wireless Ethernet extension controller and at least one wireless Ethernet extension station. The controller and the station preferably adopt a power-line communication technology to accomplish an initial connection and data transferring. While the connection is done, an automatic connection process is initiated. By means of an automatic exploration mechanism to search any existed wireless Ethernet extension controller, the station obtains the controller's network address. The station then automatically establishes the connection and receives the wireless network configuration from the controller. It is featured that the system achieves a plug-and-play effect to simplify the process for expanding the coverage of wireless signals.

Abstract: A pipe cutter comprises a disc knife set and a roller set disposed inside a main body, a driving assembly piercing through the main body and connected to the roller set with a rotating operation component disposed on the exterior of the main body, and a conversion module connecting the main body, driving assembly, and roller set which converts the rotation of the rotating operation component into the linear movement of the roller set to adjust the relative distance between the roller set and the disc knife of the disc knife set and thereby to adapt the pipe cutter to the cutting of metal pipes with different diameters.

Abstract: Provided is a plug-and-play wireless network extension station and its automatic configuration process. This wireless network extension station particularly explores any wireless network extension controller over a power-line network through a power-line communication technology. The process includes broadcasting exploration packet, determining the controller's network address from a response, automatically receiving wireless network configuration and establishing a connection after self-configuration. In one embodiment, the wireless network extension station at least includes a data processing unit, a wireless-network module for providing a wireless network access service and a power-line network bridging module for data transmission using the power-line communication technology. A station exploration communication module is also provided for exploring the controller's network address via broadcast and receiving wireless network configuration.