Fire exit door
A fire door and secret door technology, applied in the direction of windows/doors, door/window accessories, building components, etc., can solve the problems of blocking sight, inconvenient use, insufficient opening and closing angle of the secret door, etc., to achieve stable relative movement and use. handy effect
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] see Figure 1 to Figure 4 , the present invention provides a technical solution: a fire door, including a placement groove opened on the wall, the inner wall of the placement groove is fixedly connected with a positioning rod 1, and the positioning rod 1 plays a role of fixed support; the surface of the positioning rod 1 is limited There is a gear 2 for bit rotation, and the gear 2 plays a transmission role; the upper surface of the gear 2 is meshed wit...
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