Insulating plate unit

An insulating plate unit comprising:

• a first engaging end (1) and a second engaging end (2),
• a first fin (12) extending longitudinally from an upper edge of said first engaging end (1) and along a length of said upper edge, an extension (122) projecting from a lower edge of said first fin (12), a first wing (14) extending longitudinally from a lower edge of said first engaging end (1) and along a length of said lower edge, said first wing (14) extending to a distance greater than that of said first fin (12), said first wing (14) having an inward facing surface (14a) and an outward facing surface (14b), a first channel (16) being defined by said first fin (12) and said first wing (14), a first recess (18) being formed in said outward facing surface (14b) and extending along the length of said lower edge of said first engaging end (1).
• a second fin (22) extending from a lower edge of said second engaging end (2) for engaging with the first recess (18) of the first engaging end (1) of another insulating plate unit, a second wing (24) extending from an upper edge of said second engaging end (2) in a manner the same as that of said first wing (14) relative to said first engaging end (1), said second wing (24) being received in the first channel (16) of the first engaging end (1) of another insulating plate unit, said second wing (24) having an inward facing surface (24a) and an outward facing surface (24b), said second wing (24) being channeled to fittingly receive the extension (122) of the first fin (12) of another insulating plate unit, a second channel (26) being defined by said second fin (22) and said second wing (24) for receiving the first wing (14) of another insulating plate unit, and a second recess (28) being formed in said outward facing surface (24b) of said second wing (24) and extending along a length of said upper edge of said second wing (24).

An insulating plate unit comprising:

• a first engaging end (1) and a second engaging end (2),
• a first fin (12) extending longitudinally from an upper edge of said first engaging end (1) and along a length of said upper edge, a first wing (14) extending longitudinally from a lower edge of said first engaging end (1) and along a length of said lower edge, said first wing (14) extending to a distance greater than that of said first fin (12), said first wing (14) having an inward facing surface (14a) and an outward facing surface (14b), a first channel (16) being defined by said first fin (12) and said first wing (14), a first recess (18) being formed in said outward facing surface (14b) and extending along the length of said lower edge of said first engaging end (1),
• a second fin (22) extending from a lower edge of said second engaging end (2) for engaging with the first recess (18) of the first engaging end (1) of another insulating plate unit, a second wing (24) extending from an upper edge of said second engaging end (2) in a manner the same as that of said first wing (14) relative to said first engaging end (1), and second wing (24) being received in the first channel (16) of the first engaging end (1) of another insulating plate unit, said second wing (24) having an inward facing surface (24a) and an outward facing surface (24b), a second channel (26) being defined by said second fin (22) and said second wing (24) for receiving the first wing (14) of another insulating plate unit, a conduit (4) is received in at least one of said channels (16, 26), and a second recess (28) being formed in said outward facing surface (24b) of said second wing (24) and extending along a length of said upper edge of said second wing (24).

An insulating plate unit comprising:

• a first engaging end (1) and a second engaging end (2),
• a first fin (12) extending longitudinally from an upper edge of said first engaging end (1) and along a length of said upper edge, a first wing (14) extending longitudinally from a lower edge of said first engaging end (1) and along a length of said lower edge, said first wing (14) extending to a distance greater than that of said first fin (12), said first wing (14) having an inward facing surface (14a) and an outward facing surface (14b), a first channel (16) being defined by said first fin (12) and said first wing (14), a first recess (18) being formed in said outward facing surface (14b) and extending along the length of said lower edge of said first engaging end (1),
• a second fin (22) extending from a lower edge of said second engaging end (2) for engaging with the first recess (18) of the first engaging end (1) of another insulating plate unit, a second wing (24) extending from an upper edge of said second engaging end (2) in a manner the same as that of said first wing (14) relative to said first engaging end (1), said second wing (24) being received in the first channel (16) of the first engaging end (1) of another insulating plate unit, said second wing (24) having an inward facing surface (24a) and an outward facing surface (24b), a second channel (26) being defined by said second fin (22) and said second wing (24) for receiving the first wing (14) of another insulating plate unit, and a second recess (28) being formed in said outward facing surface (24b) of said second wing (24) and extending along a length of said upper edge of said second wing (24);
• a groove (15, 25) being formed in each of said inward facing surfaces (14a, 24a), said groove (15, 25) having an arcuate wall (15a, 25a) which faces associated channel (16, 26) and a wall (15b, 25b) which is opposite to said arcuate wall (15a,25a), a rib (17, 27) extending from said wall (15b, 25b) of said groove (15, 25), an engaging member (3) being received in at least one of said groove (15, 25) and having a substantially V-shaped first end (32) to be securely engaged in a space defined by said rib (17, 27) and a bottom wall of said groove (15, 25) and a second end with a plurality of single direction retaining teeth (34) which butt against said arcuate wall (15a, 25a) of another insulating plate unit, thereby preventing disengagement of engaged plate units.