Patent-family-84537222

A protection mat assembly (1) comprising at least two protection plates (2) and at least one assembly lock (20) is provided. Each protection plate forms at least one through hole (4), and each assembly lock (20) is configured for locking one of the at least two protection plates (2) to an adjacent of the at least two protection plates (2). Each assembly lock (20) comprises a lower assembly part (22) and an upper assembly part (24). The upper assembly part comprising an upper assembly structure (26) configured for releasable assembly with a lower connection structure (28) of the lower assembly part (22). The lower assembly part (22) forms a lower retainer part (30) and a connector (32) extending upright from an upper surface (34) of the lower retainer part (30). The upper assembly part (24) forms an upper connector part (38) configured to be fixed to the upright extending connector (32) by the upper assembly structure. Each through hole (4) is sized to receive the upright extending connector (32). The upper surface (34) of the lower retainer part (30) is arranged against a lower surface (6) of one of the protection plates (2), and a lower surface of the upper assembly part (24) is arranged against an upper surface (8) of another one of the protection plates (2).