Seating furniture

Abstract

A seating furniture includes: a seating furniture plate, wherein a first U-shaped support frame and a second U-shaped support frame are secured on a side of the seating furniture plate; wherein a bottom of the first U-shaped support frame and a bottom of the second U-shaped support frame are abutted against each other at a middle portion of the seating furniture plate and arranged at an angle to form a first cross-over portion; a first connection portion is arranged between opening ends of the first U-shaped support frame, and a second connection portion is arranged between opening ends of the second U-shaped support frame, wherein the first connection portion and the second connection portion are abutted against each other and arranged at an angle to form a second cross-over portion; wherein a support rod is secured between the first cross-over portion and the second cross-over portion.

What is claimed is: 
     
         1 . A seating furniture, comprising: a seating furniture plate, a first U-shaped support frame and a second U-shaped support frame being secured on a side of the seating furniture plate; wherein a bottom of the first U-shaped support frame and a bottom of the second U-shaped support frame are abutted against each other at middle portion of the seating furniture plate and arranged at an angle to form a first cross-over portion;
 a first connection portion is arranged between opening ends of the first U-shaped support frame, and a second connection portion is arranged between opening ends of the second U-shaped support frame, wherein the first connection portion and the second connection portion are abutted against each other and arranged at an angle to form a second cross-over portion;   wherein a support rod is secured between the first cross-over portion and the second cross-over portion, the support rod being configured to support the seating furniture plate; and   a plurality of telescopic rods are movably arranged on the opening ends of the first U-shaped support frame and the opening ends of the second U-shaped support frame respectively, the telescopic rods being configured to adjust a height of the seating furniture plate.   
     
     
         2 . The seating furniture according to  claim 1 , wherein an insert hole is arranged in one end, facing towards the first cross-over portion, of the support rod;
 a raised portion is extended from the seating furniture plate facing towards the first cross-over portion, the raised portion running through the first cross-over portion and being inserted to the insert hole; and   the support rod is detachably connected to the second cross-over portion.   
     
     
         3 . The seating furniture according to  claim 2 , wherein the support rod, the first U-shaped support frame, and the first connection portion are integrally formed; or the support rod, the second U-shaped support frame, and the second connection portion are integrally formed. 
     
     
         4 . The seating furniture according to  claim 1 , wherein a recess is further arranged in a side of the seating furniture plate, the recess being configured to receive the bottom of the first U-shaped support frame and the bottom of the second U-shaped support frame. 
     
     
         5 . The seating furniture according to  claim 1 , wherein a snap-fit portion is arranged at one end of each of the telescopic rods, and a plurality of snap-fit holes are spacedly arranged in the opening ends of the first U-shaped support frame and the opening ends of the second U-shaped support frame respectively; wherein the telescopic rods are snap-fitted to the snap-fit holes via the snap-fit portions. 
     
     
         6 . The seating furniture according to  claim 5 , wherein two ends of the first connection portion and two ends of the second connection portion are respectively connected to the snap-fit holes, such that a relative distance from the first connection portion and the second connection portion to the seating furniture plate is adjustable; and
 a length of the support rod is adjustablly defined to follow the first connection portion and the second connection portion to adjust the relative distance to the seating furniture plate.   
     
     
         7 . The seating furniture according to  claim 1 , wherein a reinforcement rod is further secured on a side, away from the support rod, of the second cross-over portion, a length of the reinforcement rod being adjustably defined, and matching with a length of each of the telescopic rods; wherein the reinforcement rod is configured to cooperatively support the seating furniture plate with the telescopic rods. 
     
     
         8 . The seating furniture according to  claim 1 , wherein a notch is arranged at a position, corresponding to a tailbone part of a human body, of the seating furniture plate. 
     
     
         9 . The seating furniture according to  claim 1 , wherein an insert portion is further arranged on a side, close to the seating furniture plate, of each of the first U-shaped support frame and the second U-shaped support frame; wherein the insert portion is configured to allow an armrest to be inserted therein. 
     
     
         10 . The seating furniture according to  claim 1 , further comprising a backrest, wherein the backrest is secured at the bottoms of the first U-shaped support frame and the second U-shaped support frame. 
     
     
         11 . The seating furniture according to  claim 1 , wherein a detachable seating furniture cushion is arranged on the seating furniture plate. 
     
     
         12 . The seating furniture according to  claim 1 , wherein the first U-shaped support frame, the second U-shaped support frame, the first connection portion, the second connection portion, the support rod, and the telescopic rods are made of a same rigid material.