Abstract: A pipe wrench includes jaws and a handle portion. The handle portion includes an outer shell disposed outside and an extension body encircled by the outer shell. A first end of the extension body extends into interior of the outer shell. A second end of the extension body is connected to the jaws. The outer shell and the extension body are not rotatable relative to each other. The handle portion further includes a locking element encircling the second end of the extension body.

Abstract: The present invention relates to a foldable table mechanism that is convenient to transport. The foldable table mechanism includes table tops and a foldable mechanism. The foldable mechanism includes at least one shelve unit and a plurality of support legs. The support legs include a plurality of movable units. The movable units are pivotably connected. The shelve unit is disposed between the table tops. The shelve unit is movably connected to the movable units. The support legs support and secure the table tops at an open position and are stored between the table tops at a folded position. The present invention is simple in structure, foldable and flexible to use, convenient to carry and transport, thus suitable to use in small space, such as in household setting, small food service areas, and also suitable to use for outdoor activities because it is easy to transport.

Abstract: The present invention relates to an automatic bit-changing screwdriver including a bit tip and a bit shaft assembly. The bit tip and the bit shaft assembly are pivotably connected. Guided by the bit shaft assembly, the bit tip may rotate relative to the bit shaft assembly and change the tip without requiring direct manual contact with the bit tip. Particularly, the screwdriver includes a handle, a bit tip, a shaft and a shaft sleeve. The bit tip includes two sizes/styles of tips at two ends respectively. The bit tip is pivotably coupled to the shaft. The shaft is fixedly coupled to the handle. The shaft sleeve surrounds the shaft. The shaft and shaft sleeve are slidingly coupled together. Outwards sliding of the shaft sleeve drives the bit tip to rotate within the shaft to achieve bit-changing. A deep groove is formed on a front end of the shaft. The bit tip is disposed in the deep groove. A middle section of the shaft has a guide groove.

Abstract: The present invention relates to a foldable table mechanism that is convenient to transport. The foldable table mechanism includes table tops and a foldable mechanism. The foldable mechanism includes at least one shelve unit and a plurality of support legs. The support legs include a plurality of movable units. The movable units are pivotably connected. The shelve unit is disposed between the table tops. The shelve unit is movably connected to the movable units. The support legs support and secure the table tops at an open position and are stored between the table tops at a folded position. the present invention is simple in structure, foldable and flexible to use, convenient to carry and transport, thus suitable to use in small space, such as in household setting, small food service areas, and also suitable to use for outdoor activities because it is easy to transport.

Abstract: A tool case for convenient display is provided. The tool case includes a lid, a body, and a flip display connector. The lid and the body are connected in a flipping manner via the flip display connector. The flip display connector includes a connector main body, a first pin, and a second pin. The connector main body has two parallel through holes, each pin passing through a corresponding parallel through hole. The lid may rotate 360 degrees relative to the body, thus, may be flipped over for conveniently displaying tools in the tool case. A method of displaying the contents of a tool case is provided. The method comprises the following steps of: a) opening the tool case; b) rotating the lid about 360 degrees relative to the body to a fully open position; c) locking the lid to the body in the fully open position.