Adjustable bed posts

Abstract

An adjustable bed post includes a telescoping structure with inner and outer tubes. The outer tube includes axially aligned movement slots and positioning slots. The inner tube includes positioning pins that engage the positioning slots for selective height adjustment. A retaining sleeve with radially outwardly extending tooth-shaped structures maintains alignment between the inner and outer tubes. An optional locking screw provides additional post-adjustment fixation. The design allows easy, tool-free adjustment, enhances structural stability, and simplifies manufacturing and assembly.

What is claimed is: 
     
         1 . An adjustable bed post, comprising:
 an outer tube comprising a hollow cylindrical outer tube body, and a guide mechanism formed on the outer tube body, the guide mechanism comprising one or more guide slot structures, wherein each guide slot structure comprises a longitudinal movement slot extending along an axial direction of the outer tube body, a plurality of positioning slots distributed along the axial direction of the outer tube body on one side of the longitudinal movement slot, and a plurality of transverse connection slots respectively connecting the plurality of positioning slots to the longitudinal movement slot; and   an inner tube slidably received within the outer tube, the inner tube comprising a cylindrical inner body, and one or more positioning pins axially extending out from the inner body and respectively engaged with the one or more guide slot structures, wherein each positioning pin is configured to be moveably received in a selected positioning slot of the corresponding guide slot structure, and is slidable within the corresponding guide slot structure between the longitudinal movement slot and the positioning slots for height adjustment of the inner tube relative to the outer tube.   
     
     
         2 . The adjustable bed post of  claim 1 , wherein when adjusting the height, manipulating the inner tube to displace each positioning pins from the selected positioning slot to the longitudinal movement slot; sliding the inner tube axially to a desired height, and re-engaging each positioning pin into a different positioning slot to secure the desired height. 
     
     
         3 . The adjustable bed post of  claim 1 , wherein the outer tube further comprises an internal liner (endcap) formed on the outer tube body at the first end  111 , and a connecting bolt formed on the endcap and axially extending out of the outer tube body, wherein the connecting bolt is configured to secure the adjustable bed post to a bed frame. 
     
     
         4 . The adjustable bed post of  claim 1 , wherein each positioning slot is an oblong-shaped slot elongated in the axial direction of the outer tube body. 
     
     
         5 . The adjustable bed post of  claim 4 , wherein each connection slot connects to a central region of the corresponding oblong positioning slot. 
     
     
         6 . The adjustable bed post of  claim 5 , wherein each positioning slot has a height that is higher than that of each transverse connection slot. 
     
     
         7 . The adjustable bed post of  claim 1 , wherein the guide mechanism comprises two guide slot structures symmetrically formed on opposing sides of the outer tube body, and the one or more positioning pins includes two positioning pins configured to engage with the two guide slot structures respectively. 
     
     
         8 . The adjustable bed post of  claim 7 , wherein the two positioning pins are defined by opposite ends of a horizontal cross pin that traverses through the inner tube body. 
     
     
         9 . The adjustable bed post of  claim 7 , wherein the two positioning pins are defined by two ends of a U-shaped elastic spring positioned inside the inner tube body and biased outwardly to engage with the two guide slot structures. 
     
     
         10 . The adjustable bed post of  claim 1 , wherein the guide mechanism comprises a single guide slot structure and a row of longitudinally aligned through-holes formed on opposing sides of the outer tube body, each through-holes being corresponding to each positioning slot of the single guide slot structure one by one, wherein as assembled, a screw passes through a through-hole aligned with a selected positioning slot and threadably engages with the inner tube body to lock the height of the adjustable bed post. 
     
     
         11 . The adjustable bed post of  claim 1 , wherein the inner tube further comprises a retaining sleeve attached on the inner tube body at an insertion end, the retaining sleeve comprising:
 an insertion segment configured to fit within the inner tube body; and   a retention segment extending from the insertion segment and comprising a plurality of radially outwardly extending tooth-shaped structures configured to engage with an inner wall of the outer tube body.   
     
     
         12 . The adjustable bed post of  claim 11 , wherein each tooth-shaped structure comprises a sloped guide surface at an upper end to facilitate insertion of the inner tube into the outer tube. 
     
     
         13 . The adjustable bed post of  claim 1 , further comprising a foot pad mounted on a bottom end of the inner tube for protection and wear resistance.