Invisible staircase

Abstract

A movable and reconfigurable staircase. The stairs can be configured as a straight stair, a circular stair, or a combination stair. The stairs can be placed in a stored configuration as well.

1 . A hidden rotating staircase comprises a plurality of rotating staircase units ( 20 ), a forward driving spindle ( 72 ′), a reverse driving spindle ( 72 ), a fixed staircase unit ( 40 ) and a driving device ( 70 ), which are characterized as follows: Described the spiral staircase unit ( 20 ) including positive spiral staircase unit ( 20 ′) and reverse rotating staircase unit ( 20 ″) and described several positive spiral staircase unit ( 20 ′) fixed installed on the top of the stairs unit ( 40 ), described several reverse spiral staircase unit ( 20 ′) is installed on a fixed down to the bottom of the stairs unit ( 40 );
 the forward driving spindle ( 72 ′) is penetrated through a plurality of forward rotating stair units ( 20 ′) to a fixed stair unit ( 40 ), and the reverse driving spindle ( 72 ) is penetrated through a plurality of reverse rotating stair units ( 20 ′) to a fixed stair unit, The forward rotating stair unit ( 20 ′) rotates clockwise with the axis of the forward driving spindle ( 72 ′) as the rotation axis, while the reverse rotating stair unit ( 20 ′) rotates counterclockwise with the axis of the reverse driving spindle ( 72 ) as the rotation axis. 
 
     
     
         2 . The hidden rotating staircase according to  claim 1 , wherein the fixed staircase unit ( 40 ) is provided with a driving device ( 70 ) and a manual device, the driving device ( 70 ) comprises a driving motor ( 80 ) and a reducer ( 82 ), the reducer ( 82 ) through a connecting rod ( 85 ) is connected with a transmission gear ( 86 ), The lower end of the forward driving spindle ( 72 ′) is provided with a forward driving gear ( 88 ), the upper end of the reverse driving spindle ( 72 ) is provided with a reverse driving gear ( 90 ), wherein the transmission gear ( 86 ) is respectively meshing with the forward driving gear ( 88 ) and the reverse driving gear ( 90 ); The manual device is arranged on the side of the fixed stair unit ( 40 ). 
     
     
         3 . The hidden rotating staircase according to  claim 1 , wherein the forward rotating stair unit ( 20 ″) comprises a forward rotating stair body ( 20 ″) and a forward rotating device ( 110 ″), and the reverse rotating stair unit ( 20 ″″) comprises a reverse rotating stair body ( 20 ″) and a reverse rotating device ( 110 ″);
 the forward rotating device ( 110 ′) comprises a forward driving gear ( 120 ′) and a forward rotating gear ring ( 122 ′). The forward driving gear ( 120 ′) is set on the forward driving spindle ( 72 ′). The forward rotating gear ring ( 122 ′) is installed and fixed on the forward rotating stair body ( 20 ′). The forward driving gear ( 120 ′) meshes with the forward rotating gear ring ( 122 ′); 
 the reverse rotating device ( 110 ″) comprises a reverse driving gear ( 120 ″) and a reverse rotating gear ring ( 122 ″), the reverse rotating gear ring ( 122 ″) is mounted on the reverse driving spindle ( 72 ), and the reverse rotating gear ring ( 122 ″) is mounted and fixed on the reverse rotating stair body ( 20 ″), Wherein the reverse drive gear ( 120 ″) is meshed with the reverse rotating gear ring ( 122 ″). 
 
     
     
         4 . The hidden rotating staircase according to  claim 1 , wherein a guardrail post ( 32 ) is arranged on the outside of said forward rotating staircase unit ( 20 ′), reverse rotating staircase unit ( 20 ″) and fixed staircase unit ( 40 ), and the guardrail post ( 32 ) is detachable;
 the guardrail column ( 32 ) of the fixed staircase unit ( 40 ) is arranged in the middle position of the lateral side of the fixed staircase unit ( 40 ), and the guardrail column ( 10 ) of the fixed staircase unit ( 40 ) is rotated upward in turn by the guardrail column ( 20 ′) backward in turn by a position of the guardrail column ( 32 ); The guardrail post ( 32 ) of the reverse rotating staircase unit ( 20 ″) of the fixed staircase unit ( 40 ) downward in turn differs one position of the guardrail post ( 32 ) in turn forward; The upper end of the guardrail column ( 32 ) is connected with a guardrail soft cable ( 34 ). 
 
     
     
         5 . The hidden rotating staircase according to  claim 3 , wherein a guardrail post ( 32 ) is arranged on the outside of said forward rotating staircase unit ( 20 ′), reverse rotating staircase unit ( 20 ″) and fixed staircase unit ( 40 ), and the guardrail post ( 32 ) is detachable;
 the guardrail column ( 32 ) of the fixed staircase unit ( 40 ) is arranged in the middle position of the lateral side of the fixed staircase unit ( 40 ), and the guardrail column ( 10 ) of the fixed staircase unit ( 40 ) is rotated upward in turn by the guardrail column ( 20 ′) backward in turn by a position of the guardrail column ( 32 ); The guardrail post ( 32 ) of the reverse rotating staircase unit ( 20 ″) of the fixed staircase unit ( 40 ) downward in turn differs one position of the guardrail post ( 32 ) in turn forward; The upper end of the guardrail column ( 32 ) is connected with a guardrail soft cable ( 34 ). 
 
     
     
         6 . The hidden rotating staircase according to  claim 2 , wherein the manual device ( 6 ) comprises a manual transmission gear ( 104 ) and a hand wheel ( 100 ), wherein the manual transmission gear ( 104 ) is respectively meshing with a forward transmission gear ( 88 ) and a reverse transmission gear ( 90 ), wherein the hand wheel ( 100 ) is connected with a manual transmission gear ( 104 ) through a transmission shaft ( 102 ). 
     
     
         7 . The hidden rotating staircase according to  claim 1 , wherein the number of said forward spiral staircase units ( 20 ′) and reverse spiral staircase units ( 20 ″) is equal. 
     
     
         8 . The hidden rotating staircase according to  claim 3 , wherein the number of said forward spiral staircase units ( 20 ′) and reverse spiral staircase units ( 20 ″) is equal. 
     
     
         9 . The hidden rotating staircase according to  claim 3 , wherein storage drawers are arranged inside the forward rotating staircase body ( 20 ′) and the reverse rotating staircase body ( 20 ′).