Retractable structure of folding bed, and folding bed

Abstract

A retractable structure of a folding bed includes: a support base, a first folding seat and a second folding seat, a first connecting shaft configured to mount the first folding seat and the second folding seat, and a second connecting shaft slidably connected to the support base; the first folding seat is provided with a first hook groove capable of hooking the second connecting shaft, and the second folding seat is provided with a second hook groove capable of hooking the second connecting shaft; a folding bed is further provided; and the first connecting shaft is configured to mount the first folding seat and the second folding seat, the first folding seat and the second folding seat hook the second connecting shaft, the support base is directly pressed down for unfolding, and the support base is lifted upward for folding. A folding bed structure is further provided.

1 . A retractable structure of a folding bed, wherein the retractable structure comprises a support base, a first folding seat and a second folding seat disposed on two sides of the support base, a first connecting shaft configured to mount the first folding seat and the second folding seat on the support base and slidably connected to the support base, and a second connecting shaft disposed on the support base and slidably connected to the support base; and
 the first folding seat is provided with a first hook groove capable of hooking the second connecting shaft, and the second folding seat is provided with a second hook groove capable of hooking the second connecting shaft.   
     
     
         2 . The retractable structure of a folding bed according to  claim 1 , wherein the support base is provided with a first elongated groove for the first connecting shaft to move in a vertical direction, and a second elongated groove for the second connecting shaft to move in the vertical direction. 
     
     
         3 . The retractable structure of a folding bed according to  claim 1 , wherein the first folding seat comprises a first main body portion and two first connecting portions disposed on the first main body portion side by side, and a first mounting hole for the first connecting shaft to penetrate is formed on a lower portion of either of the first connecting portions; and
 the second folding seat comprises a second main body portion and two second connecting portions disposed on the second main body portion side by side, and a second mounting hole for the first connecting shaft to penetrate is formed on a lower portion of either of the second connecting portions.   
     
     
         4 . The retractable structure of a folding bed according to  claim 1 , wherein the retractable structure further comprises a moving assembly configured to move the second connecting shaft upward. 
     
     
         5 . The retractable structure of a folding bed according to  claim 4 , wherein the moving assembly comprises a sliding seat and a moving member configured to lift the sliding seat and the second connecting shaft upward. 
     
     
         6 . The retractable structure of a folding bed according to  claim 5 , wherein a limiting hole is formed on the sliding seat, the support base is provided with a limiting column matched with the limiting hole, and the moving member is sleeved on the second connecting shaft and sequentially penetrates the sliding seat and the support base. 
     
     
         7 . A folding bed structure, employing the retractable structure of a folding bed according to  claim 1 , and comprising a folding base, wherein the folding base comprises a retractable structure, first folding rods with one ends disposed on the retractable structure respectively, and first supporting legs disposed at the other ends of the first folding rods respectively, wherein the number of the first folding rods is four, and the number of the first supporting legs is also four. 
     
     
         8 . A folding bed structure, employing the retractable structure of a folding bed according to  claim 2 , and comprising a folding base, wherein the folding base comprises a retractable structure, first folding rods with one ends disposed on the retractable structure respectively, and first supporting legs disposed at the other ends of the first folding rods respectively, wherein the number of the first folding rods is four, and the number of the first supporting legs is also four. 
     
     
         9 . A folding bed structure, employing the retractable structure of a folding bed according to  claim 3 , and comprising a folding base, wherein the folding base comprises a retractable structure, first folding rods with one ends disposed on the retractable structure respectively, and first supporting legs disposed at the other ends of the first folding rods respectively, wherein the number of the first folding rods is four, and the number of the first supporting legs is also four. 
     
     
         10 . A folding bed structure, employing the retractable structure of a folding bed according to  claim 4 , and comprising a folding base, wherein the folding base comprises a retractable structure, first folding rods with one ends disposed on the retractable structure respectively, and first supporting legs disposed at the other ends of the first folding rods respectively, wherein the number of the first folding rods is four, and the number of the first supporting legs is also four. 
     
     
         11 . A folding bed structure, employing the retractable structure of a folding bed according to  claim 5 , and comprising a folding base, wherein the folding base comprises a retractable structure, first folding rods with one ends disposed on the retractable structure respectively, and first supporting legs disposed at the other ends of the first folding rods respectively, wherein the number of the first folding rods is four, and the number of the first supporting legs is also four. 
     
     
         12 . A folding bed structure, employing the retractable structure of a folding bed according to  claim 6 , and comprising a folding base, wherein the folding base comprises a retractable structure, first folding rods with one ends disposed on the retractable structure respectively, and first supporting legs disposed at the other ends of the first folding rods respectively, wherein the number of the first folding rods is four, and the number of the first supporting legs is also four. 
     
     
         13 . The folding bed structure according to  claim 7 , wherein the folding bed further comprises four upright posts and a folding frame, wherein lower ends of the four upright posts are correspondingly connected to the four supporting legs, and the folding frame is disposed above the four upright posts; and
 the folding frame comprises two first snap-fit joints disposed on two upright posts, two angular connectors disposed on the other two upright posts, a lifting folding assembly disposed between the two first snap-fit joints, second snap-fit joints disposed at two ends of the lifting folding assembly and configured to be matched with the first snap-fit joints, a first folding assembly disposed between the two angular connectors, and second folding assemblies disposed between the first snap-fit joints and the angular connectors.   
     
     
         14 . The folding bed structure according to  claim 8 , wherein the folding bed further comprises four upright posts and a folding frame, wherein lower ends of the four upright posts are correspondingly connected to the four supporting legs, and the folding frame is disposed above the four upright posts; and
 the folding frame comprises two first snap-fit joints disposed on two upright posts, two angular connectors disposed on the other two upright posts, a lifting folding assembly disposed between the two first snap-fit joints, second snap-fit joints disposed at two ends of the lifting folding assembly and configured to be matched with the first snap-fit joints, a first folding assembly disposed between the two angular connectors, and second folding assemblies disposed between the first snap-fit joints and the angular connectors.   
     
     
         15 . The folding bed structure according to  claim 9 , wherein the folding bed further comprises four upright posts and a folding frame, wherein lower ends of the four upright posts are correspondingly connected to the four supporting legs, and the folding frame is disposed above the four upright posts; and
 the folding frame comprises two first snap-fit joints disposed on two upright posts, two angular connectors disposed on the other two upright posts, a lifting folding assembly disposed between the two first snap-fit joints, second snap-fit joints disposed at two ends of the lifting folding assembly and configured to be matched with the first snap-fit joints, a first folding assembly disposed between the two angular connectors, and second folding assemblies disposed between the first snap-fit joints and the angular connectors.   
     
     
         16 . The folding bed structure according to  claim 10 , wherein the folding bed further comprises four upright posts and a folding frame, wherein lower ends of the four upright posts are correspondingly connected to the four supporting legs, and the folding frame is disposed above the four upright posts; and
 the folding frame comprises two first snap-fit joints disposed on two upright posts, two angular connectors disposed on the other two upright posts, a lifting folding assembly disposed between the two first snap-fit joints, second snap-fit joints disposed at two ends of the lifting folding assembly and configured to be matched with the first snap-fit joints, a first folding assembly disposed between the two angular connectors, and second folding assemblies disposed between the first snap-fit joints and the angular connectors.   
     
     
         17 . The folding bed structure according to  claim 11 , wherein the folding bed further comprises four upright posts and a folding frame, wherein lower ends of the four upright posts are correspondingly connected to the four supporting legs, and the folding frame is disposed above the four upright posts; and
 the folding frame comprises two first snap-fit joints disposed on two upright posts, two angular connectors disposed on the other two upright posts, a lifting folding assembly disposed between the two first snap-fit joints, second snap-fit joints disposed at two ends of the lifting folding assembly and configured to be matched with the first snap-fit joints, a first folding assembly disposed between the two angular connectors, and second folding assemblies disposed between the first snap-fit joints and the angular connectors.   
     
     
         18 . The folding bed structure according to  claim 12 , wherein the folding bed further comprises four upright posts and a folding frame, wherein lower ends of the four upright posts are correspondingly connected to the four supporting legs, and the folding frame is disposed above the four upright posts; and
 the folding frame comprises two first snap-fit joints disposed on two upright posts, two angular connectors disposed on the other two upright posts, a lifting folding assembly disposed between the two first snap-fit joints, second snap-fit joints disposed at two ends of the lifting folding assembly and configured to be matched with the first snap-fit joints, a first folding assembly disposed between the two angular connectors, and second folding assemblies disposed between the first snap-fit joints and the angular connectors.   
     
     
         19 . The folding bed structure according to  claim 13 , wherein either of the first snap-fit joints is provided with a vertical sliding groove, and a plurality of snap-fit grooves spaced apart from each other in an up-down direction are formed in the sliding groove; and
 either of the second snap-fit joints is provided with a guide rail, a horizontally slidable snap-fit clasp is disposed above the guide rail, and a spring is disposed between the snap-fit clasp and the second snap-fit joint, wherein the guide rail extends into the sliding groove and slides up and down while attached to the sliding groove, and the snap-fit clasp is snap-fitted into one of the snap-fit grooves under the action of the spring.   
     
     
         20 . The folding bed structure according to  claim 19 , wherein either of the first snap-fit joints comprises an upper snap-fit joint and a lower snap-fit joint, wherein the upper snap-fit joint is disposed at a top end of the upright post and further connected to the second folding assembly, the lower snap-fit joint is disposed below the upper snap-fit joint and mounted on the upright post, and two ends of the lifting folding assembly are respectively connected to the second snap-fit joints; an upper sliding groove is formed on a side wall of the upper snap-fit joint close to the second snap-fit joint, a lower sliding groove is formed on a side wall of the lower snap-fit joint close to the second snap-fit joint, the upper sliding groove and the lower sliding groove are directly opposite to each other in the up-down direction and form the sliding groove together, and the snap-fit grooves are respectively formed in the upper sliding groove and the lower sliding groove; and
 the second snap-fit joint is provided with a sleeve, the spring is disposed in the sleeve, a first clearance hole is formed on a wall of the sleeve, and the snap-fit clasp comprises a snap-fit head, a push plate, and a connecting plate, wherein the snap-fit head is disposed in the sleeve and connected to the spring, one end of the connecting plate is fixedly connected to the snap-fit head, and the other end of the connecting plate penetrates the first clearance hole and is fixedly connected to the push plate.