A production method for a waterproof and wear-resistant composite floor, comprising: first manufacturing a PVC composite layer preform (3); then performing a corona treatment and a punching treatment on a soft cushion layer (2); and finally, compounding, at one time, the PVC composite layer preform (3), the soft cushion layer (2) and a waterproof substrate layer (1) into one. Said process is simple and easy to implement, shortening the production cycle, reducing the manpower and material resources required by the production process and reducing the production cost; moreover, the waterproof and wear-resistant composite floor produced has a simple structure, and also has very good waterproof and wear-resistant performance; in addition, the waterproof and wear-resistant composite floor will not swell, and will also not split into layers or deform easily.

A panel, which is rectangular and has long and short edges, includes a coupling part on each long edge and on each short edge, which allows coupling of the panel to another such panel.

A snap-fit connection arrangement includes groove and tongue strips respectively having a groove and tongue, and first and second attachment regions for placement along first and second components, respectively. The groove and tongue strips respectively extend in first and second longitudinal directions transversely to their respective cross sections. Cross-sectional contours of the tongue and the groove correspond to each other through use of latching elements so that a snap-fit connection can be established as the tongue is inserted in a joining direction into the groove. The snap-fit connection allows for relative movement between the tongue and groove strips along at least one of the longitudinal directions and prevents relative movement between the tongue and groove strips transversely to at least one of the longitudinal directions. The tongue includes a latching recess comprising an undercut that extends along and within the tongue and is configured for latching engagement with a rib.

A set including a first panel, a second panel and a mechanical locking device for locking the first panel to the second panel, the mechanical locking device includes an insertion groove at the second edge surface, a flexible tongue positioned in the insertion groove and an edge tongue including a tongue groove, the flexible tongue includes a first locking surface and a second locking surface, the first locking surface is configured to cooperate with the tongue groove for locking of the first panel to the second panel in a first direction when the flexible tongue is positioned in the insertion groove in a first orientation, the second locking surface of the flexible tongue is configured to cooperate with the tongue groove for a locking of the first panel to the second panel in a first direction when the flexible tongue is positioned in the insertion groove in a second orientation.

A split floor contains multiple bottom plates and multiple top plates. The multiple bottom plates are fixed on a ground, and multiple top plates connected on the multiple bottom plates. A top of a respective one bottom plate is a plane. A coupling layer is formed on a top of the respective one bottom plate or a bottom of a respective one top plate, and the coupling layer is an adhesive layer or a vacuum layer. The respective one bottom plate includes at least one groove and at least one tenon formed on a peripheral side of the respective one bottom plate, such that any two adjacent bottom plates are connected. The respective one top plate includes at least one groove and at least one tenon formed on a peripheral side of the respective one top plate, such that any two adjacent top plates are connected.

A set of building panels, such as floor or wall panels, having a mechanical locking device at opposite first and second edge portions, such as short edges, configured for horizontal locking of similar or essentially identical panels in an assembled position by means of displacement in an engagement direction, such as a vertical direction, of the second edge portion of a second panel relative the first edge portion of an adjacent first panel. The second edge portion has a locking groove configured to receive a locking element of the first edge portion of an adjacent first panel by means of the displacement. An outer portion of the locking element, such as in a horizontal direction transverse the first edge portion, is configured to cooperate with an inner portion of the locking groove for positioning, such as horizontal positioning, respective upper edge portions of the first and second edge portions during assembling.

A flexible, preferably polymer-based, rectangular floor covering element of double-angling type has six sides: a decorative top face and a bottom face, as well as four edges. The first long edge has a first connection profile with a recess at the bottom face and a tongue overhanging the recess. The second long edge opposite the first long edge has a second connection profile with a protrusion at the bottom face and a groove for receiving the tongue of the first profile. The first short edge is equipped with the first profile and the second short edge is equipped with the second profile. When looking at the floor covering element from above the top face, the edges of the floor covering element are arranged in the following order in the clockwise direction: 1) the first long edge, 2) the first short edge, 3) the second long edge and 4) the second short edge.

Provided is a panel including at least one first coupling part. The first coupling part includes an upward tongue, at least one upward flank lying at a distance from the upward tongue and an upward groove formed in between the upward tongue and the upward flank. The side of the upward tongue facing towards the upward flank is the inside of the upward tongue and the side of the upward tongue facing away from the upward flank is the outside of the upward tongue. At least a part of an upper side of the upward tongue is inclined relative to the plane of the panel, such that the upper side of the upward tongue includes a highest point. The upward tongue has a width, wherein the highest point of the upward tongue is arranged less than 50% of the width from the outside of the upward tongue.

A floor, wall or ceiling panel comprises a core and a decorative top layer provided on the core. The core comprises a magnesium oxide-based board material, and wherein the aforementioned panel, on at least two opposite edges, is provided with coupling means allowing that two of such panels can be interlocked at the respective edges.

A panel having a core, a top side, a underside, a first edge pair and a second edge pair. The first edge pair has a groove profile at a panel edge and a complementary tongue profile at the opposite panel edge, which cooperate in positively locking relationship so that movement of locked panels away from each other in the plane of the panels is opposed. At its opposite panel edges the second edge pair has a receiving hook and a complementary arresting hook. The arresting hook can be assembled to the receiving hook by a joining movement in a direction perpendicular to the panel plane. The receiving hook has a holding groove for a separate locking element for a vertical locking action. At a corner of the panel the tongue edge of the first edge pair comes together with the receiving hook. The holding groove provided on the receiving hook of the second edge pair for the locking element has an upper groove wall with a spacing from the top side that is greater than the spacing between the panel top side and the tongue top side of the tongue profile of the first edge pair.