Scrapers for removing adhered material from surfaces employ continuous and discontinuous material removal edges to remove different types of material. Continuous and sometimes discontinuous material removal edges are constructed and arranged to conform to the curvature of a surface from which material is to be removed, when a user forces the scraper against the surface. Some scrapers include multiple material removal edges designed to simultaneously contact the surface. The use of multiple points of contact combined with locations of handles provide stable designs that reduce hand and wrist strain.

The present invention is to provide a knife, which includes a blade having one end formed as a tip and having an engaging groove formed on a side adjacent to the other end thereof; a handle having a side concavely provided with an inwardly extending receiving space and an engaging post fixedly provided therein adjacent to one end thereof and having an elastic plate provided therein adjacent to the other end thereof; and a back-lock member having a first end corresponding to the receiving space, a second end being movably abutted by a free end of the elastic plate, and a middle section pivotally connected in the handle. Thus, when the second end is being pressed, the other end of the blade can be inserted into the receiving space and, is then securely engaged with the engaging post through the engaging groove while the second end is released.

The present invention is to provide a knife, which includes a blade having one end formed as a tip and having an engaging groove formed on a side adjacent to the other end thereof; a handle having a side concavely provided with an inwardly extending receiving space and an engaging post fixedly provided therein adjacent to one end thereof and having an elastic plate provided therein adjacent to the other end thereof; and a back-lock member having a first end corresponding to the receiving space, a second end being movably abutted by a free end of the elastic plate, and a middle section pivotally connected in the handle. Thus, when the second end is being pressed, the other end of the blade can be inserted into the receiving space and, is then securely engaged with the engaging post through the engaging groove while the second end is released.

A mop tool is provided. The mop tool includes: an elongated stick; a cleaning head which includes a head body that has a coupling portion rotatably coupled to one end of the stick, and a gap portion that extends from the coupling portion of the head body toward at least one side of the head body; and a rotation control element which is installed on the stick so as to be movable along the stick. The rotation control element includes a locking member which is releasably coupled to at least a part of the head body which adjoins the gap portion, and restricts a relative rotation between the cleaning head and the stick.

A mop tool is provided. The mop tool includes: an elongated stick; a cleaning head which includes a head body that has a coupling portion rotatably coupled to one end of the stick, and a gap portion that extends from the coupling portion of the head body toward at least one side of the head body; and a rotation control element which is installed on the stick so as to be movable along the stick. The rotation control element includes a locking member which is releasably coupled to at least a part of the head body which adjoins the gap portion, and restricts a relative rotation between the cleaning head and the stick.

A rake device for cleaning rain gutters and roof valleys which includes a rake which is pivotally secured to an elongated support pole to enable the rake to be positioned in multiple positions with respect to the support pole to reach multiple portions of the rain gutter or the roof valley.

A rake device for cleaning rain gutters and roof valleys which includes a rake which is pivotally secured to an elongated support pole to enable the rake to be positioned in multiple positions with respect to the support pole to reach multiple portions of the rain gutter or the roof valley.

A collapsible or folding saw is provided as a compact hand tool that when folded covers and protects the blade. The folding saw is movable between an extended useable condition and a folded condition. The saw comprises a frame having a longitudinal telescoping upper member, and first and second collapsible side supports depending from the upper member. A blade is coupled between the first and second collapsible side supports, whereby a tensioning mechanism is provided to tension the blade. Further, a handle is provided having a first portion pivotably coupled to the frame and wherein the handle pivots between a first condition to form a free-end handle and a second handle condition where the handle engages the upper member and encapsulates the blade.

A collapsible or folding saw is provided as a compact hand tool that when folded covers and protects the blade. The folding saw is movable between an extended useable condition and a folded condition. The saw comprises a frame having a longitudinal telescoping upper member, and first and second collapsible side supports depending from the upper member. A blade is coupled between the first and second collapsible side supports, whereby a tensioning mechanism is provided to tension the blade. Further, a handle is provided having a first portion pivotably coupled to the frame and wherein the handle pivots between a first condition to form a free-end handle and a second handle condition where the handle engages the upper member and encapsulates the blade.

The present disclosure provides a multifunctional tool kit. The multifunctional tool kit knit includes a connecting piece, a cover, a tool, a first shank, and a second shank. The cover is connected to an upper end of the connecting piece. The first shank and the second shank are connected to a lower end of the connecting piece. The tool is inserted into a second hole to reach the bottom of a pin hole. By rotating the cover, the tool is locked on the connecting piece. The first shank and the second shank are movably connected to the connecting piece, and are reversely rotatable by 180 degrees to engage with each other define a handle. The present disclosure achieves effects of saving space and resources, and implementing multiple integrated functions with one tool.