Unidirectionally swinging linkage shutter, linkage shutter skylight roof, and shutter blades

A roof with the linkage shutter, comprising:

• a transverse roof beam and
• a longitudinal roof beam, the longitudinal roof beam is arranged on the transverse roof beam;
• there are more than two longitudinal roof beams;
• wherein,
• a louver blade is arranged between adjacent longitudinal roof beams;
• the longitudinal roof beam includes a longitudinal keel, the longitudinal keel includes a longitudinal keel body and a positioning bar, the positioning bar protrudes from the longitudinal keel body towards an outdoor side, the positioning bar is provided with the same number of pin holes as the louver blades, the louver blade includes a blade body, the length of the blade body is greater than the distance between the inner sides of two longitudinal keel bodies, the blade body is provided with a swing shaft end and an outer swing end, the swing shaft end is located at one end of the blade body, the outer swing end is located at the other end of the blade body, a pin accommodating hole is provided at the swing shaft end, the outer swing end is provided with a protruding section protruding to the outer side of the wall, a linkage connection position is defined on the protruding section;
• when the louver blade is closed, all the linkage connection positions are farther away from the outer side of the longitudinal roof beam than all the pin accommodating holes;
• the louver blade is hinged to the positioning bar via a pin shaft passing through the pin hole and the pin accommodating hole, on the linkage connection position of all the louver blades in the same longitudinal direction is provided with a linkage bar, the linkage bar is located on the outdoor side, and the linkage connecting bar is farther away from the outdoor side than the pin hole;
• a protective strip is fixed on the longitudinal keel to block the pin shaft on the outdoor side.

A louver blade, comprising:

• a blade body, wherein,
• the blade body is provided with a swing shaft end and an outer swing end, the swing shaft end is located at one end of the blade body, the outer swing end is located at the other end of the blade body, a pin accommodating hole is provided at the swing shaft end, the outer swing end is provided with a protruding section protruding to the outer side of the wall, a linkage connection position is defined on the protruding section;
• a sealing structure is provided at the outer end of the blade body;
• the sealing structure includes a sealing strip fixing portion and a matching portion connected to the outer end of the sealing strip fixing portion;
• the cross section of the mating portion is in the shape of a circular arc with a middle portion protruding to the outdoor side;
• the cross section of the sealing strip fixing portion is two limiting plates, and the two limiting plates extend outward from the outer end of the blade body, a sealing strip clamping groove is formed between the two limiting plates, a sealing strip is defined in the sealing strip clamping groove.