Support base

Abstract

A support base comprises a stand assembly and clamping assemblies, wherein the stand assembly comprises a base and at least three fixing rods uniformly fixed to the base; the clamping assemblies are located on an inner side of the stand assembly and hinged to the fixing rods; each clamping assembly comprises a clamping block rotatably connected to the corresponding fixing rod and an elastic element located between the clamping block and the stand assembly and fixedly connected to the clamping block and the stand assembly. The support base can satisfy the installation requirements of Christmas trees with different diameters and can realize convenient and quick installation without a long time and much effort; the support base is not only suitable for Christmas trees, but also suitable for various articles with a rod-like bottom similar to the Christmas trees such as sunshades.

1 . A support base, comprising a stand assembly ( 1 ) and clamping assemblies ( 2 ), wherein the stand assembly ( 1 ) comprises a base ( 11 ) and at least three fixing rods ( 12 ) uniformly fixed to the base ( 11 ); the clamping assemblies ( 2 ) are located on an inner side of the stand assembly ( 1 ) and hinged to the fixing rods ( 12 ); each said clamping assembly ( 2 ) comprises a clamping block ( 21 ) rotatably connected to the corresponding fixing rod ( 12 ) and an elastic element ( 22 ) located between the clamping block ( 21 ) and the stand assembly ( 1 ) and fixedly connected to the clamping block ( 21 ) and the stand assembly ( 1 ). 
     
     
         2 . The support base according to  claim 1 , wherein the elastic element ( 22 ) is a spring or a torsion spring. 
     
     
         3 . The support base according to  claim 1 , wherein a fixing piece ( 111 ) is arranged in a middle of the base ( 11 ). 
     
     
         4 . The support base according to  claim 1 , further comprising support assemblies ( 3 ) connected to the stand assembly ( 1 ). 
     
     
         5 . The support base according to  claim 4 , wherein each said support assembly ( 3 ) comprises a first support rod ( 31 ), an end, close to the stand assembly ( 1 ), of the first support rod ( 31 ) is provided with a clamping portion ( 311 ), and at least one fixing hole is formed in the clamping portion ( 311 ); the support assemblies ( 3 ) are rotatably connected to the fixing rods ( 12 ) by means of hinge pins penetrating through the fixing holes, and first elastic hinge pins ( 121 ) matched with the fixing holes are arranged on the fixing rods ( 12 ). 
     
     
         6 . The support base according to  claim 5 , wherein each said support assembly ( 3 ) further comprises a second support rod ( 32 ), a sliding groove matched with the first support rod ( 31 ) is formed in the second support rod ( 32 ), the first support rod ( 31 ) is slidably connected to the second support rod ( 32 ), an end, close to the second support rod ( 32 ), of the first support rod ( 31 ) is provided with a second elastic hinge pin ( 312 ), and a hole matched with the second elastic hinge pin ( 312 ) is formed in a top of the second support rod ( 32 ). 
     
     
         7 . The support base according to  claim 6 , wherein third elastic hinge pins ( 122 ) located between the first elastic hinge pins ( 121 ) and the clamping blocks ( 21 ) are arranged in middles of the fixing rods ( 12 ), and clamping and limiting holes ( 211 ), corresponding to the third elastic hinge pins ( 122 ), are formed in ends, away from the fixing rods ( 12 ), of the clamping blocks ( 21 ). 
     
     
         8 . The support base according to  claim 7 , wherein the first elastic hinge pins ( 121 ), the second elastic hinge pins ( 312 ) and the third elastic hinge pins ( 122 ) are each formed by an elastic piece in a middle and limiting pieces at two ends and are n-shaped on the whole; the elastic pieces of the first elastic hinge pins ( 121 ) are located in the fixing rods ( 12 ), and the limiting pieces of the first elastic hinge pins ( 121 ) penetrate through the fixing rods ( 12 ) and extend out of the fixing rods ( 12 ); the elastic pieces of the second elastic hinge pins ( 312 ) are located in the first support rods ( 31 ), and the limiting pieces of the second elastic hinge pins ( 312 ) penetrate through the first support rods ( 31 ) and extend out of the first support rods ( 31 ); the elastic pieces of the third elastic hinge pins ( 122 ) are located in the fixing rods ( 12 ), and the limiting pieces of the third elastic hinge pins ( 122 ) penetrate through the fixing rods ( 12 ) and extend out of the fixing rods ( 12 ). 
     
     
         9 . The support base according to  claim 1 , wherein clamping grooves ( 212 ) are formed in the clamping blocks ( 21 ) and fit the fixing rods ( 12 ) in size. 
     
     
         10 . The support base according to  claim 1 , wherein the stand assembly ( 1 ) further comprises a fixing ring ( 13 ), and the fixing ring ( 13 ) is fixedly connected to the fixing rods ( 12 ).