Pick-up truck mattress

Abstract

The present disclosure provides a pick-up truck mattress, including a main air chamber and an annular air chamber in communication with each other, wherein two opposite sides of the main air chamber are each provided with two convex portions, and the two convex portions on the same side define therebetween an avoidance groove configured to avoid a wheel; the annular air chamber is provided around the main air chamber, and the annular air chamber is located at one sides of the convex portions in a thickness direction of the main air chamber and shields the avoidance grooves.

1 . A pick-up truck mattress, comprising:
 a main air chamber and an annular air chamber in communication with each other,   wherein two opposite sides of the main air chamber are each provided with two convex portions, and the two convex portions on a same side define therebetween an avoidance groove configured to avoid a corresponding wheel; and   the annular air chamber is provided around the main air chamber, and the annular air chamber is located at one side of the convex portions in a thickness direction of the main air chamber and shields the avoidance grooves,   wherein a flow dividing pipe is provided in the main air chamber, the flow dividing pipe is provided therein with a unidirectional valve to allow only gas in the main air chamber to enter the annular air chamber, and the unidirectional valve is configured to be opened under an action of air pressure when the air pressure in the main air chamber reaches a certain value, so as to allow the gas in the main air chamber to enter the annular air chamber through the flow dividing pipe to inflate the annular air chamber.   
     
     
         2 . The pick-up truck mattress according to  claim 1 , wherein the main air chamber comprises a bottom wall, a first enclosure, a second enclosure, and a top wall, the convex portions are provided on the first enclosure, the bottom wall is connected to a side of the first enclosure, the second enclosure is connected to a side of the first enclosure away from the bottom wall, and the top wall is connected to a side of the second enclosure away from the first enclosure; and
 the annular air chamber is provided around the second enclosure, and the annular air chamber is connected to both the first enclosure and the top wall.   
     
     
         3 . The pick-up truck mattress according to  claim 2 , wherein a joint where the first enclosure is connected with the second enclosure is a first connecting portion, a joint where the second enclosure is connected with the top wall is a second connecting portion, and the annular air chamber is connected to both the first connecting portion and the second connecting portion. 
     
     
         4 . The pick-up truck mattress according to  claim 2 , wherein the second enclosure and the first enclosure have an included angle, and a side of the second enclosure away from the first enclosure is closer to a center of the top wall than the first enclosure. 
     
     
         5 . The pick-up truck mattress according to  claim 2 , wherein the second enclosure comprises a plurality of connecting pieces spliced end to end in sequence. 
     
     
         6 . The pick-up truck mattress according to  claim 2 , wherein the main air chamber further comprises at least one first pull strap, and the at least one first pull strap is connected to both the top wall and the bottom wall. 
     
     
         7 . The pick-up truck mattress according to  claim 2 , wherein the annular air chamber comprises an annular sheet and a third enclosure, the annular sheet is connected to the third enclosure, the top wall is connected to the annular sheet, the third enclosure is connected to a joint where the first enclosure is connected with the second enclosure, and the annular sheet, the third enclosure, and the second enclosure together define an annular cavity. 
     
     
         8 . The pick-up truck mattress according to  claim 7 , wherein the annular air chamber further comprises at least one second pull strap, and the at least one second pull strap is connected to both the annular sheet and the third enclosure. 
     
     
         9 . The pick-up truck mattress according to  claim 7 , wherein the annular sheet comprises two connecting bodies and two first blocking bodies, the two connecting bodies and the two first blocking bodies are arranged alternately and connected end to end;
 the two first blocking bodies each protrude beyond the connecting bodies in a direction from outside to inside of the annular air chamber; and   two second blocking bodies are provided at an inner side of the third enclosure, the two first blocking bodies and the two second blocking bodies are respectively provided corresponding to and opposite to each other, and the second blocking bodies are configured to shield sides of the avoidance grooves close to the top wall.   
     
     
         10 . The pick-up truck mattress according to  claim 2 , wherein an outer side wall of the annular air chamber does not protrude from outer sides of the convex portions. 
     
     
         11 . The pick-up truck mattress according to  claim 3 , wherein an outer side wall of the annular air chamber does not protrude from outer sides of the convex portions. 
     
     
         12 . The pick-up truck mattress according to  claim 4 , wherein an outer side wall of the annular air chamber does not protrude from outer sides of the convex portions. 
     
     
         13 . The pick-up truck mattress according to  claim 5 , wherein an outer side wall of the annular air chamber does not protrude from outer sides of the convex portions. 
     
     
         14 . The pick-up truck mattress according to  claim 6 , wherein an outer side wall of the annular air chamber does not protrude from outer sides of the convex portions. 
     
     
         15 . The pick-up truck mattress according to  claim 7 , wherein an outer side wall of the annular air chamber does not protrude from outer sides of the convex portions. 
     
     
         16 . The pick-up truck mattress according to  claim 8 , wherein an outer side wall of the annular air chamber does not protrude from outer sides of the convex portions. 
     
     
         17 . The pick-up truck mattress according to  claim 9 , wherein an outer side wall of the annular air chamber does not protrude from outer sides of the convex portions.