Wooden staircase of modular construction
An assembled and stair technology, which is applied in the direction of stairs, treads and riser units, can solve the problems of increasing the cost of stair manufacturing, increasing the time for rework, and damage to the stair surface, so as to achieve the best assembly effect and improve assembly work efficiency , high work efficiency
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[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0027] A new type of assembled structure wooden staircase, including stair treads 2 and a riser 9 between two treads 2 and a beam plate 1 for carrying the treads 2 and risers 9, as shown in Figure 1, the step The left and right ends of the upper surface of the plate 2 are respectively provided with a bolt through hole 3 for fixing the railing. As shown in Figure 2, several screw holes are provided on the contact surface of stair beam plate 1 and tread plate 2 and vertical plate 9, and connecting screw 8 is assembled in the screw hole, and the depth of screw hole is 2 / 3 of screw 8 total length.
[0028] As shown in Figures 3, 4, and 5, the bottom surface of the tread plate 2 and the inner surface of the vertical plate 9 are provided with several grooves 4 whose sections are stepped, wherein the bottom surface of the tread plate 2 is provided wi...
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