Shanghai Kunjek Handtools and Hardware Co., Ltd.

Kunjek Handtools & Hardware Co., Ltd.

Wen, Hao

Hao Wen

Junhua Shen

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.

Foldable table mechanism

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. The shaft sleeve is connected to the guide groove by a connecting element disposed along the guide groove. A slide guide block is fixedly positioned on the shaft sleeve facing a side of the shaft having the deep groove. The shaft sleeve has a notch. The notch is formed in a middle section of the shaft sleeve. A spring element is connected to the shaft sleeve. The spring element moves within the notch. The automatic bit-changing screwdriver provides a solution to a technical problem that the state of the art combination screwdrivers are generally inconvenient to change bits.

Automatic bit-changing screwdriver

A multi-angle positioned foldable knife includes a knife body (), a handle () and a pin (). The knife body () is pivotally connected with the handle () through the pin (). A cam () is arranged on the connecting end of the knife body (), and snap openings () on the outer edge of the cam are provided to position the knife body () at multi-angle relative to the handle (). A positioning button () is arranged on the connecting end of the handle (), and a snap edge () is provided on the interior end of the button (). The snap edge () can connect with a snap opening () on the outer edge of the cam (). Compared with prior art, the foldable knife has simple structure, controlled angle, safe use, convenient operation, simple preparation etc. The knife body () can be positioned at multi foldable position. Additionally, the rotation of the knife body () can be achieved only by pressing the button ().

Growing community of inventors

Shanghai, China

Hao Wen