Aluminum alloy bridge stand

[0017] The specific implementation of the present invention will be described below in conjunction with the drawings and embodiments:

[0018] Examples such as figure 1 , figure 2 , image 3 , Figure 4 with Figure 5 As shown, an aluminum alloy bridge includes a left side plate 1, a connecting screw 2, a cross arm 3 on both sides, a middle cross arm 4, and a right side plate 5; the left side plate 1 and the right side plate 5 are made of aluminum alloy The materials are all extruded by molds. The cross arms 3 on both sides are installed on the left side plate 1 and the right side plate 5 by connecting screws 2, and the cross arms 3 on both sides are formed by an outer cylinder 31 and a stop screw 32. And the inner cylinder 33, the outer cylinder 31 and the inner cylinder 33 are of rectangular structure, the inner cylinder 33 is provided with rectangular bosses on four sides, and the outer cylinder 31 is provided with rectangular grooves on the four sides of the inner wall The inner cylinder 33 is installed in the outer cylinder 31 and can move left and right. The outer cylinder 31 is provided with mounting holes on the four sides of the outer wall, the stop screw 32 is installed in the mounting hole of the outer cylinder 31, and the middle horizontal The shoulder 4 is composed of a left sleeve 41, a right sleeve 42, a right limit screw 43 and a left limit screw 44. The left sleeve 41 and the right sleeve 42 are both rectangular in structure, and the right sleeve 42 has four sides. There are rectangular bosses on the upper part, rectangular grooves are provided on the four sides of the inner wall of the left sleeve 41, the right sleeve 42 is installed in the left sleeve 41 and can move left and right, and the outer wall of the left sleeve 41 Mounting holes are provided on the four sides near the left and right sides. The left limit screw 44 is installed in the mounting hole near the left side of the left sleeve 41, and the right limit screw 43 is installed in the left sleeve 41. Close to the mounting hole on the right side, the middle cross arm 4 is fixedly installed on the cross arm 3 on both sides.

[0019] Preferably, the outer cylinder 31 and the inner cylinder 33 of the cross arm 3 on both sides are made of aluminum alloy material, and the inner cylinder 33 has a flange structure.

[0020] Preferably, the left sleeve 41 and the right sleeve 42 of the middle cross arm 4 are both made of aluminum alloy material, and the left sleeve 41 and the right sleeve 42 have a flange structure.

[0021] Preferably, the outer cylinder 31 and the inner cylinder 33 of the cross arm 3 on both sides are rectangular structures, and the left sleeve 41 and the right sleeve 42 of the middle cross arm 4 are rectangular structures.