Infant bed

Abstract

An infant bed includes a bed body and two support units symmetrically arranged on the bed body. Each support unit includes a lifting assembly and a retaining assembly. The lifting assembly includes a hollow fixing seat fixedly arranged on the retaining assembly and a lifting mechanism. A surface of the hollow fixing seat facing the bed body is provided with a plurality of engagement holes arranged along a longitudinal direction. The lifting mechanism includes a lifting handle, a hollow shell, a pulling wire, a first spring, a pulling element, a second spring, and an engagement element. The pulling wire is connected between the lifting handle and the pulling member. The first spring is arranged around an end of the pulling wire near the pulling member, and two end of the pulling wire are respectively pressed against the pulling member and the shell.

What is claimed is: 
     
         1 . An infant bed, comprising: a bed body and two support units symmetrically arranged on the bed body;
 wherein each support unit comprises a lifting assembly and a retaining assembly, the bed body is fixedly arranged on the lifting assembly;   the lifting assembly comprises a hollow fixing seat and a lifting mechanism passing through the hollow fixing seat; a surface of the hollow fixing seat is provided with a plurality of engagement holes arranged along a longitudinal direction;   the lifting mechanism comprises a hollow shell, a pulling element, a second spring, and an engagement element; the shell has a first through hole, the engagement element is forced by the second spring to partially extend out from the first through hole and is engaged with the engagement hole, when the pulling member moves upward, the second spring is compressed to draw the engagement element back within the first through hole and separate the engagement element with the engagement hole.   
     
     
         2 . The infant bed according to  claim 1 , wherein the lifting mechanism further comprises a lifting handle, a pulling wire, and a first spring;
 wherein the pulling wire is connected between the lifting handle and the pulling member; the first spring is arranged around an end of the pulling wire near the pulling member, and two ends of the first spring are respectively pressed against the pulling member and the shell, the pulling member has a first inclined surface along a direction of the pulling wire; the engagement element has a second inclined surface matched with the first inclined surface; when the pulling wire pulls the pulling member to move upward, the first inclined surface moves relative to the second inclined surface, so that the second spring is compressed to draw the engagement element back within the first through hole and separate the engagement element with the engagement hole.   
     
     
         3 . The infant bed according to  claim 1 , wherein the retaining assembly comprises first support rods, and the hollow fixing seat is fixed to a top end of the first support rods. 
     
     
         4 . The infant bed according to  claim 3 , wherein the first support rods are arranged in a form of a triangular shape and support a bottom portion of the hollow fixing seat. 
     
     
         5 . The infant bed according to  claim 4 , wherein the retaining assembly further comprises a first crossbar, the first crossbar laterally supports the first support rods. 
     
     
         6 . The infant bed according to  claim 5 , wherein the retaining assembly further comprises a second crossbar, the second crossbar laterally supports the first crossbar. 
     
     
         7 . The infant bed according to  claim 1 , wherein the retaining assembly further comprises a support frame, for supporting the bed body; and the support frame is mounted between the supporting units through support grooves provided at a bottom portion of the shell. 
     
     
         8 . The infant bed according to  claim 1 , wherein the retaining assembly further comprises sliding wheels and friction pads arranged at bottom portions of the first support rods, and the sliding wheels and friction pads are located on a same plane. 
     
     
         9 . The infant bed according to  claim 1 , wherein the engagement holes are all arranged on a surface of the hollow fixing seat facing the bed body.